Patent Publication Number: US-2016227009-A1

Title: Operating a vehicle and a wearable device

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     Pursuant to 35 U.S.C. §119(a), this application claims the benefit of an earlier filing date and right of priority to Korean Patent Application Number 10-2015-0015240, filed on Jan. 30, 2015, the entire contents of which are incorporated by reference in their entirety. 
     TECHNICAL FIELD 
     The present application relates to automated control of a vehicle. 
     BACKGROUND 
     A vehicle is an apparatus that is able to move in a desired direction while transporting one or more drivers and/or passengers. A representative example is a car. 
     Some vehicles include various types of communication functionality, such as the ability to communicate with external devices. Such communication can be implemented, for example, via long-range or short-range communication protocols. 
     SUMMARY 
     Techniques disclosed herein may enable a vehicle to be electrically connected with a wearable device to provide electric energy to the wearable device, and to be connected to a communication network through the wearable device. 
     In one aspect, a method of operating a vehicle is disclosed. The method includes determining whether a wearable device is electrically connected through an interface unit of the vehicle. Based on a determination that the wearable device is electrically connected through the interface unit of the vehicle, energy that charges a battery of the wearable device is provided to the wearable device through the interface unit. A control unit of the vehicle connects, through the wearable device, to a mobile communication network and receives, from the wearable device, information received by the wearable device through the mobile communication network. An output unit of the vehicle outputs the received information. 
     In some implementations, the method of operating a vehicle further includes receiving, by the control unit of the vehicle, driving assistant information from an external server connected through the mobile communication network. 
     In some implementations, the method of operating a vehicle further includes establishing, by the control unit of the vehicle, a short range wireless communication network connected with the mobile communication network through the wearable device. 
     In some implementations, receiving, by the control unit of the vehicle and from the wearable device, information received by the wearable device through the mobile communication network includes receiving, by the control unit of the vehicle and from the wearable device, call reception information or text message reception information received by the wearable device from another mobile terminal connected to the mobile communication network. Furthermore, outputting, by the output unit of the vehicle, the received information includes outputting, by the output unit of the vehicle, the received call reception information or text message reception information. 
     In some implementations, outputting, by the output unit of the vehicle, the received call reception information or text message reception information includes performing text-to-speech conversion to convert a text message in the received call reception information or text message reception information into speech and outputting, by the output unit of the vehicle, the speech converted from the text message. 
     In some implementations, the method of operating a vehicle further includes receiving, by the control unit of the vehicle and from the wearable device, information on a wearing state of the wearable device, the wearing state indicating whether the wearable device is being worn by a user; and outputting, by the output unit of the vehicle, a message for checking whether the wearable device is charged based on a determination that the wearable device is in a non-wearing state and is not electrically connected to the interface unit. 
     In some implementations, the method of operating a vehicle further includes receiving, by the control unit of the vehicle and from the wearable device, information on a wearing state of the wearable device, the wearing state indicating whether the wearable device is being worn by a user. Based on receipt of the information on the wearing state of the wearable device, the output unit of the vehicle displays a selection input image that enables selection of a terminal between the wearable device and a mobile terminal to be a terminal first connected to the interface unit. 
     In some implementations, the method of operating a vehicle further includes performing, by the control unit of the vehicle, identification of a passenger possessing the wearable device; and determining, by the control unit of the vehicle, whether or not to establish an electrical connection with the wearable device based on a result of the identification. 
     In some implementations, performing, by the control unit of the vehicle, identification of the passenger possessing the wearable device includes comparing first biometric recognition information of a user matched with the wearable device and stored in a memory and second biometric recognition information of the passenger detected by a biometric information detecting unit, and determining whether the passenger is the user based on comparison results. 
     In another aspect, a method of operating a wearable device is disclosed. The method includes determining, by the wearable device, whether a vehicle is electrically connected to the wearable device. The method also includes charging, by the wearable device, with energy provided from the vehicle based on a determination that the vehicle is electrically connected to the wearable device. The method further includes transmitting, by the wearable device and to the vehicle, information received through a mobile communication network in a state of being connected to the mobile communication network. 
     In some implementations, the method of operating a wearable device further includes connecting, by the wearable device, with a mobile terminal through short range communication; and releasing, by the wearable device, the connection with the mobile terminal through the short range communication based on a determination that the vehicle is electrically connected to the wearable device. 
     In some implementations, the method of operating a wearable device further includes transmitting, by the wearable device and to the mobile terminal, information descriptive of a connection state between the vehicle and the wearable device, the transmission of the information descriptive of the connection state causing the mobile terminal to change a notification method used by the mobile terminal based on the information descriptive of the connection state indicating that the vehicle is electrically connected to the wearable device. 
     In some implementations, a vehicle is disclosed. The vehicle includes an output unit, an interface unit electrically connected with a wearable device, and a control unit. The control unit is configured to determine whether the wearable device is electrically connected through an interface unit of the vehicle. Based on a determination that the wearable device is electrically connected through the interface unit of the vehicle, the control unit controls energy that charges a battery of the wearable device to be provided to the wearable device through the interface unit. The control unit also connects, through the wearable device, to a mobile communication network and receives, from the wearable device, information received by the wearable device through the mobile communication network. The control unit further controls output of the received information through the output unit. 
     In some implementations, the control unit is configured to control driving assistant information to be received from an external server connected through the mobile communication network. 
     In some implementations, the vehicle further includes a short range communication module configured to perform short range communication with an external device. The control unit is configured to control formation of a short range wireless communication network that is connected with the mobile communication network through the short range communication module. 
     In some implementations, the control unit is configured to receive call reception information or text message reception information received by the wearable device from another mobile terminal connected to the mobile communication network. 
     In some implementations, the control unit is configured to perform text-to-speech conversion to convert, into speech, a text message in the received call reception information or text message reception information and output the speech converted from the text message. 
     In some implementations, the vehicle further includes a short range communication module configured to perform short range communication with the wearable device. The control unit is configured to control information on a wearing state of the wearable device to be received through the short range communication module, the wearing state indicating whether the wearable device is being worn by a user, and control output, by the output unit, of a message for checking whether the wearable device is charged based on a determination that the wearable device is in a non-wearing state and is not electrically connected to the interface unit. 
     In some implementations, the vehicle further includes a short range communication module configured to perform short range communication with the wearable device. The control unit is configured to control information on a wearing state of the wearable device to be received through the short range communication module, the wearing state indicating whether the wearable device is being worn by a user, and control display of a selection input image that enables selection of one of the wearable device and the mobile terminal to be first connected to the interface unit based on receipt of the information on the wearing state of the wearable device. 
     In some implementations, the vehicle further includes a memory configured to store first biometric recognition information of a user matched with the wearable device; and a biometric information detecting unit configured to detect second biometric recognition information of a passenger. The control unit is configured to compare the first biometric recognition with the second biometric recognition information, determine whether the passenger is the user, and determine whether or not to establish an the electrical connection with the wearable device based on a result of the determination of whether the passenger is the user. 
     All or part of the features described throughout this application can be implemented as a computer program product including instructions that are stored on one or more non-transitory machine-readable storage media, and that are executable on one or more processing devices. All or part of the features described throughout this application can be implemented as an apparatus, method, or electronic system that can include one or more processing devices and memory to store executable instructions to implement the stated functions. 
     The details of one or more implementations are set forth in the accompanying drawings and the description below. Other features will be apparent from the description and drawings, and from the claims. The description and specific examples below are given by way of illustration only, and various changes and modifications will be apparent. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a diagram illustrating an example of a vehicle; 
         FIG. 2  is a diagram illustrating an example of a cockpit module included in a vehicle; 
         FIG. 3  is a block diagram of an example of a vehicle; 
         FIGS. 4A and 4B  are diagrams illustrating examples of wearable devices; 
         FIG. 5  is a block diagram of an example of a wearable device; 
         FIG. 6  is a flowchart of an example of operations of a vehicle and a wearable device; 
         FIG. 7  is a flowchart of an example of operations of a vehicle and a wearable device; 
         FIGS. 8 to 14B  are diagrams illustrating examples of an operation of a vehicle that is electrically connected to a wearable device; 
         FIG. 15  is a diagram of an example of an operation of the vehicle performing identification of a passenger of the vehicle; 
         FIG. 16  is a diagram of an example of an operation of a vehicle in which a user does not wear a wearable device; and 
         FIGS. 17 to 20  are diagrams of examples of an operation of a vehicle in which a passenger of the vehicle possesses both a wearable device and a mobile terminal. 
     
    
    
     DETAILED DESCRIPTION 
     Techniques are disclosed that enable a vehicle to be electrically connected with an external device, such as a wearable device, to provide electric energy to the external device, and to be connected to a network through the external device. 
     The communication may be implemented using any suitable communication mechanism, such as a communication network, and/or short range communication, between a vehicle and an external device. In such cases, problems may arise when a communication module for a network connection is not provided in a vehicle, thus rendering it difficult to establish communication using a network. Technique disclosed herein enable a vehicle to provide electric energy to a connected wearable device, and connected with a network via the wearable device. 
       FIG. 1  is a diagram illustrating an example of a vehicle, and  FIG. 2  is a diagram illustrating an example of a cockpit module included in the vehicle. 
     Referring to the examples in  FIGS. 1 and 2 , a vehicle  100  may include wheels  10 FR,  10 FL,  10 RL, . . . rotated by a power source, a steering input means  121   a  for adjusting a movement direction of the vehicle  100 , a camera  122   a  for photographing an image at a front side of the vehicle, and various electronic units included inside the vehicle  100 . 
     Further, the vehicle  100  may include a camera  122   b  for photographing an image inside the vehicle, a first display unit  141   a  and a second display unit  141   b  for visually displaying various information, and an interface unit  170  electrically connected with a wearable device  200 . 
     The interface unit  170  may include a holding part formed so that the wearable device  200  may be held, and a connection part connected with the wearable device  200 . 
       FIG. 3  is a block diagram of an example of a vehicle. 
     Referring to the example of  FIG. 3 , the vehicle  100  may include a communication unit  110 , an input unit  120 , a sensing unit  130 , an output unit  140 , a vehicle driving unit  150 , a memory  160 , an interface unit  170 , a control unit  180 , and a power supply unit  190 . 
     The communication unit  110  may include one or more modules capable of establishing wireless communication between the vehicle  100  and the wearable device  200 , the vehicle  100  and a mobile terminal  300 , the vehicle  100  and an external server  410 , or the vehicle  100  and another vehicle  420 . Further, the communication unit  110  may include one or more modules connecting the vehicle  100  to one or more networks. 
     The communication unit  110  may include a broadcast receiving module  111 , a wireless Internet module  112 , a short range communication module  113 , a location information module  114 , and an optical communication module  115 . 
     The broadcast receiving module  111  receives a broadcast signal or broadcast-related information from an external broadcast management server through a broadcast channel. Here, the broadcast include radio broadcast or TV broadcast. 
     The wireless Internet module  112  refers to a module for wireless Internet connection, and may be contained inside or outside the vehicle  100 . The wireless Internet module  112  is configured to transceive a wireless signal in a communication network according to wireless Internet technologies. 
     Examples of the wireless Internet technology include a wireless LAN (WLAN), wireless-fidelity (Wi-Fi), Wi-Fi direct, digital living network alliance (DLNA), wireless broadband (WiBro), world interoperability for microwave access (WiMAX), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), and long term evolution advanced (LTE-A), and the wireless Internet module  112  transceives data according to one or more wireless Internet technologies within a range including even non-listed Internet technologies. 
     The short range communication module  113  is used for short range communication, and may support short range communication by using at least one of Bluetooth™, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, near field communication (NFC), Wi-Fi, Wi-Fi Direct, and wireless universal serial bus (wireless USB) technologies. 
     The short range communication module  113  may perform short range communication between the vehicle  100  and one or more external devices by forming a short range wireless communication network. 
     The location information module  114  refers to a module for obtaining a location of the vehicle  100 , and a representative example includes a global positioning system (GPS) module. For example, when a mobile terminal utilizes a GPS module, it is possible to obtain a location of the mobile terminal by using a signal transmitted from a GPS satellite. 
     The optical communication module  115  may include an optical transmitting unit and an optical receiving unit. 
     The optical receiving unit may convert an optical signal into an electric signal and receive information. The optical receiving unit may include a photo diode (PD) for receiving light. The photo diode may convert light into an electric signal. For example, the optical receiving unit may receive information about a front vehicle through light emitted from a light source included in the front vehicle. 
     The optical transmitting unit may include one or more light emitting devices for converting an electric signal into an optical signal. Here, the light emitting device may be a light emitting diode (LED). The optical transmitting unit converts an electric signal into an optical signal and transmits the converted optical signal to the outside. For example, the optical transmitting unit may emit an optical signal to the outside by flickering a light emitting device corresponding to a predetermined frequency. According to some implementations, the optical transmitting unit may include a plurality of light emitting device arrays. The optical transmitting unit may, in some cases, be integrated with a lamp included in the vehicle  100 . For example, the optical transmitting unit may be at least one of a headlight, a taillight, a stop lamp, a turnsignal lamp, and a sidelight. 
     The input unit  120  may include a driving operation means  121 , a camera  122 , a microphone  123 , and a user input unit  124 . 
     The driving operation means  121  receives a user input for driving the vehicle  100 . The driving operation means  121  may include a steering input means  121   a , a shift input means  121   b , an acceleration input means  121   c , and a brake input means  121   d.    
     The steering input means  121   a  receives an input of a movement direction of the vehicle  100  from a user. The steering input means  121   a  may be formed in a wheel type so that steering may be input by a rotation thereof, but is not necessarily limited to such configurations. According to some implementations, the steering input means  121   a  may also be formed in a form of a touch screen, a touch pad, or a button, or any suitable input mechanism. 
     The shift input means  121   b  receives an input of park P, drive D, neutral N, and reverse R of the vehicle  100  from a user. The shift input means  121   b  may be formed in a lever type, but is not necessarily limited thereto. According to some implementations, the shift input means  121   b  may also be formed in a form of a touch screen, a touch pad, or a button, or any suitable input mechanism. 
     The acceleration input means  121   c  receives an input for acceleration of the vehicle  100  from a user. The brake input means  121   d  receives an input for deceleration of the vehicle  100  from the user. The acceleration input means  121   c  and the brake input means  121   d  may be formed in a pedal form, but is not necessarily limited thereto. According to some implementations, the acceleration input means  121   c  or the brake input means  121   d  may also be formed in a form of a touch screen, a touch pad, or a button, or any suitable input mechanism. 
     The camera  122  may include an image sensor and an image processing module. The camera  122  may process a still image or a moving image obtained by the image sensor (for example, a complementary metal-oxide semiconductor (CMOS) or a charge-coupled device (CCD)). The image processing module may process a still image or a moving image obtained through the image sensor, extract necessary information, and transmit the extracted information to the control unit  180 . In the meantime, the vehicle  100  may include the first camera  122   a  for photographing an image of a front side of the vehicle and a second camera  122   b  for photographing an image inside the vehicle. 
     The first camera  122   a  may be formed of a stereo camera to obtain a stereo image of the front side of the vehicle. In this case, the image processing module may provide information on a distance to an object detected from the stereo image through binocular parallax information. 
     The second camera  122   b  may obtain an image of a passenger. The second camera  122   b  may obtain an image for biometrics of a passenger. 
     The microphone  123  may process an external sound signal to electrical data. The processed data may be variously utilized according to a function currently performed by the vehicle  100 . The microphone  123  may convert a sound command of a user into electrical data. The converted electrical data may be transmitted to the control unit  180 . 
     In some implementations, the camera  122  or the microphone  123  may also be a constituent element included in the sensing unit  130 , not the constituent element included in the input unit  120 . 
     The user input unit  124  is used for receiving an input of information from a user. When the information is input through the user input unit  124 , the control unit  180  may control an operation of the vehicle  100  so as to correspond to the input information. The user input unit  124  may include a touch-type input means or a mechanical input means. 
     The sensing unit  130  senses a signal related to travelling and the like of the vehicle  100 . To this end, the sensing unit  130  may include a collision sensor, a wheel sensor, a speed sensor, an inclination sensor, a weight detection sensor, a heading sensor, a yaw sensor, a gyro sensor, a position module, a vehicle drive/reverse sensor, a battery sensor, a fuel sensor, a tire sensor, a steering wheel rotation-based steering sensor, a vehicle-inside temperature sensor, a vehicle-inside humidity sensor, an ultrasonic sensor, a radar, a lidar, and the like. 
     Accordingly, the sensing unit  130  may obtain a sensing signal for vehicle collision information, vehicle direction information, vehicle positioning information (GPS information), vehicle angle information, vehicle speed information, vehicle acceleration information, vehicle inclination information, vehicle drive/reverse information, battery information, fuel information, tire information, vehicle lamp information, vehicle-inside temperature information, vehicle-inside humidity information, and the like. 
     In some implementations, the sensing unit  130  may further include an acceleration pedal sensor, a pressure sensor, an engine speed sensor, an air flow sensor (AFS), an air temperature sensor (ATS), a water temperature sensor (WTS), a throttle position sensor (TPS), a thermal diffusion coefficient (TDC) sensor, a crank angle sensor (CAS), and the like. 
     The sensing unit  130  may include a biometric information detecting unit  131 . The biometric information detecting unit  131  detects and obtains biometric information about a passenger. The biometric information may include fingerprint scan information, iris scan information, retina scan information, hand geometry information, facial recognition information, and/or voice recognition information. The biometric information detecting unit  131  may include a sensor for sensing biometric information about a passenger. Here, the camera  122  and the microphone  123  may be operated as sensors. The biometric information detecting unit  131  may obtain hand geometry information and facial recognition information through the second camera  122   b . The biometric information detecting unit  131  may obtain voice recognition information through the microphone  123 . 
     In some implementations, the biometric information detecting unit  131  may further include a fingerprint scanner, an iris scanner, or a retina scanner for obtaining fingerprint scan information, iris scan information, or retina scan information about a passenger. 
     The output unit  140  is used for outputting information processed by the control unit  180 , and may include a display unit  141 , a sound output unit  142 , and a haptic output unit  143 . 
     The display unit  141  may display information processed by the control unit  180 . For example, the display unit  141  may display vehicle-related information. Here, the vehicle-related information may include vehicle control information for directly controlling the vehicle, or vehicle driving assistant information for guiding a driver of the vehicle to drive. 
     The display unit  141  may include at least one of a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) display, a flexible display, a 3D display and an e-ink display. 
     The display unit  141  may be formed in a mutual layer structure with a touch sensor or integrally formed with a touch sensor to implement a touch screen. The touch screen may serve as a user input unit  148  for providing an input interface between the vehicle  100  and a user, and provide an output interface between the vehicle  100  and the user. In this case, the display unit  141  may include a touch sensor for detecting a touch for the display unit  141  so as to receive a control command by a touch method. When a touch for the display unit  141  is generated by using the touch screen, the touch sensor detects the touch, and the control unit  180  may generate a control command corresponding to the touch based on the detected touch. Contents input by the touch method may be characters or numbers, an instruction in various modes, or a designable menu item. 
     In some cases, two or more display units  141  may exist. For example, the first display unit  141   a  may be formed in a cluster form, so that a driver may simultaneously drive and check information. The second display  141   b  may be provided in a predetermined area of a center fascia to be operated as an audio video navigation (AVN) device. 
     In some implementations, the display unit  141  may be implemented in a head up display (HUD). When the display unit  141  is implemented of an HUD, the display unit  141  may output information through a transparent display provided in the wind shield. As another example, the display unit  141  may include a projection module and output information through an image projected onto a wind shield. 
     The sound output unit  142  converts an electric signal from the control unit  180  into an audio signal and outputs the converted audio signal. To this end, the sound output unit  142  may include a speaker and the like. The sound output unit  142  may output a sound corresponding to an operation of the user input unit  124 . 
     The haptic output unit  143  generates a tactile output. For example, the haptic output unit  143  may be operated so as to vibrate a steering wheel, a seat belt, and a seat, and enable a user to recognize an output. 
     The vehicle driving unit  150  may control operations of various devices of the vehicle. The vehicle driving unit  150  may include a power source driving unit  151 , a steering driving unit  152 , a brake driving unit  153 , a lamp driving unit  154 , an air conditioner driving unit  155 , a window driving unit  156 , an airbag driving unit  157 , a sunroof driving unit  158 , and a suspension driving unit  159 . 
     The power source driving unit  151  may electrically control a power source within the vehicle  100 . 
     For example, when an engine (not illustrated) based on fossil fuel is a power source, the power source driving unit  151  may electrically control the engine. Accordingly, it is possible to control an output torque and the like of the engine. When the power source driving unit  151  is an engine, it is possible to limit a speed of the vehicle by limiting an output torque of the engine under the control of the control unit  180 . 
     As another example, when an electricity-based motor (not illustrated) is a power source, the power source driving unit  151  may control the motor. Accordingly, it may be possible to control a rotation speed, a torque, and the like of the motor. 
     The steering driving unit  152  may electrically control a steering apparatus within the vehicle  100 . Accordingly, it may be possible to change a movement direction of the vehicle. 
     The brake driving unit  153  may electrically control a brake apparatus (not illustrated) within the vehicle  100 . For example, it may be possible to decrease a speed of the vehicle  100  by controlling an operation of a brake disposed in the wheel. As another example, it may be possible to adjust a movement direction of the vehicle  100  to a left direction or a right direction by differentiating operations of the brakes disposed at the left wheel and the right wheel, respectively. 
     The lamp driving unit  154  may control turn-on/turn-off of the lamps disposed inside and outside of the vehicle. Further, the lamp driving unit  154  may control intensity, a direction, and the like of light of the lamp. For example, the lamp driving unit  154  may control the turnsignal lamp, the stop lamp, and the like. 
     The air conditioner driving unit  155  may electrically control an air conditioner (not illustrated) within the vehicle  100 . For example, when a temperature inside the vehicle is high, the air conditioner driving unit  155  may control the air conditioner to be operated so that cold air is provided inside the vehicle. 
     The window driving unit  156  may electrically control a window apparatus within the vehicle  100 . For example, the window driving unit  156  may control opening or closing of left and right windows on lateral surfaces of the vehicle. 
     The airbag driving unit  157  may electrically control an airbag apparatus within the vehicle  100 . For example, the airbag driving unit  157  may control so that an airbag is exploded in a danger situation. 
     The sunroof driving unit  158  may electrically control a sunroof apparatus (not illustrated) within the vehicle  100 . For example, the sunroof driving unit  158  may control opening or closing of the sunroof apparatus. 
     The suspension driving unit  159  may electrically control a suspension apparatus (not illustrated) within the vehicle  100 . For example, when a road surface has a curve, the suspension driving unit  159  may control vibration of the vehicle  100  to be decreased by controlling the suspension apparatus. 
     The memory  160  is electrically connected with the control unit  180 . The memory  160  may store basic data for a unit, control data for controlling an operation of a unit, and input/output data. The memory  160  may be various hardware storage devices, such as a ROM, a RAM, an EPROM, a flash drive, and a hard drive. 
     The memory  160  may be matched with one or more wearable devices and store biometric information about a user of the wearable device. For example, the memory  160  may store fingerprint scan information, iris scan information, retina scan information, hand geometry information, facial recognition information, and voice recognition information about a user matched with the first wearable device. 
     The interface unit  170  may serve as a passage for various kinds of external devices connected to the vehicle  100 . For example, the interface unit  170  may include a port connectable with the wearable device  200  or the mobile terminal  300 , and be connected with the wearable device  200  or the mobile terminal  300  through the port. In this case, the interface unit  170  may exchange data with the wearable device  200  or the mobile terminal  300 . 
     In some implementations, the interface unit  170  may serve as a passage for supplying electric energy to the connected wearable device  200  or mobile terminal  300 . When the wearable device  200  or the mobile terminal  300  is electrically connected to the interface unit  170 , the interface unit  170  provides electric energy supplied from the power supply unit  190  to the wearable device  200  or the mobile terminal  300  under the control of the control unit  180 . 
     The control unit  180  may control a general operation of each unit within the vehicle  100 . The control unit  180  may be called an engine control unit (ECU). 
     The control unit  180  may be implemented in a hardware type by using at least one of application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), processors, controllers, microcontrollers, microprocessors, and/or other electrical units for executing functions. 
     The power supply unit  190  may supply power necessary for operations of respective constituent elements under the control of the control unit  180 . For example, the power supply unit  190  may receive power from a battery (not illustrated) inside the vehicle. 
       FIGS. 4A and 4B  are diagrams illustrating examples of wearable devices. 
     In the example of  FIG. 4 , the wearable device  200  is described based on a watch-type ( FIG. 4A ) and a glasses-type ( FIG. 4B ), but the present disclosure is not limited thereto. 
     The watch-type wearable device  200   a  may be a concept including a band-type wearable device wearable on a wrist of a user without separately including a display. Further, the glasses-type wearable device  200   b  may be a concept including a head mounted display (HMD). 
     The wearable device  200  may include a necklace type wearable device wearable on a neck of a user, an earphone type wearable device wearable in an ear of a user, and a ring type wearable device wearable on a finger of a user. 
     The wearable device  200  may include a mobile communication module  212  (see  FIG. 5 ) and be configured to connect with a mobile communication network through the mobile communication module  212  (see  FIG. 5 ). 
     Further, the wearable device  200  may be configured to mutually exchange (or link) data with another mobile terminal  300 . In this case, a user may use data processed by the mobile terminal  300  through the wearable device. For example, when a call is received in the mobile terminal  300 , a user may take a phone call through the wearable device  200 , or when a message is received in the mobile terminal  300 , the user may check the received message through the wearable device  200 . 
       FIG. 4A  is a perspective view illustrating an example of a watch-type wearable device (e.g., watch-type device  200   a ). 
     Referring to the example in  FIG. 4A , the watch-type wearable device  200   a  includes a main body  201  including a display unit  251 , and a band  202  connected to the main body  201  to be wearable on a wrist. 
     The main body  201  includes a case forming an appearance. As illustrated in  FIG. 4A , the case may include a first case  201   a  and a second case  201   b  providing internal spaces for accommodating various electronic components. However, the present disclosure is not limited thereto, and in some implementations, the case is configured to provide the internal space, so that the uni-body wearable device  200  may also be implemented. 
     The watch-type wearable device  200   a  may be configured to perform wireless communication, and an antenna for the wireless communication may be installed in the main body  201 . In some implementations, the antenna may expand performance thereof by using the case. For example, the case including a conductive material is electrically connected with the antenna to be configured to expand a ground field or a radiated field. 
     The display unit  251  may be disposed on a front surface of the main body  201  to output information, and a touch sensor may be provided in the display unit  251  to be implemented as a touch screen. As illustrated in the example of  FIG. 4A , a window  251   a  of the display unit  251  may be mounted in the first case  201   a  to be formed on a front surface of the body of the terminal together with the first case  201   a.    
     The main body  201  may include a sound output unit  252 , a camera  221 , a microphone  222 , a user input unit  223 , and the like. When the display unit  251  is implemented as a touch screen, the display unit  251  may serve as the user input unit  223 , and thus, a separate key may not be provided in the main body  201 . 
     The band  202  may be formed to be wearable on a wrist and surround the wrist, and be formed of a flexible material for wearing easiness. For example, the band  202  may be formed of leather, rubber, silicon, a synthetic resin, and the like. Further, the band  202  is detachably formed in the main body  201 , so that a user may replace various types of bands according to his/her taste. 
     In some implementations, the band  202  may be used to expand performance of the antenna. For example, a ground expansion unit (not illustrated), which is electrically connected with the antenna to expand a ground field, may be embedded in the band. 
     The band  202  may be provided with a fastener  202   a . The fastener  202   a  may be implemented by a buckle, a hook structure enabling snap-fit, or Velcro™, and include an elastic section or material.  FIG. 4A  illustrates an example in which the fastener  202   a  is implemented in a buckle type. 
       FIG. 4B  is a perspective view illustrating an example of a glasses-type wearable device (e.g., glasses-type device  200   b ). 
     Referring to the example of  FIG. 4B , the glasses-type wearable device  200   b  may be configured to be wearable on a head of a human body, and include a frame unit (a case, a housing, and the like) for the wearing. The frame unit may be formed of a flexible material for easy wearing.  FIG. 4B  illustrates an example in which the frame unit includes a first frame  206  and a second frame  207  having different materials. 
     The frame units  206  and  207  are supported by the head, and provide spaces for mounting various components. As illustrated in  FIG. 4B , an electronic component, such as a control unit  280  and a sound output module  142  may be mounted in the frame units  206  and  207 . Further, a lens  208  covering at least one of a left eye and a right eye may be detachably mounted in the frame unit. 
     The control unit  280  controls various electronic components included in the wearable device  200   b .  FIG. 4B  illustrates an example in which the control unit  280  is installed in the frame unit at one side of the head. However, a location of the control unit  280  is not limited thereto. 
     The display unit  251  may be implemented in a form of a head mounted display (HMD). The HMD form refers to a display method, in which a display is mounted on a head to directly display an image in front of the eyes of a user. When a user wears the glasses-type wearable device  200   b , the display unit  251  may be disposed so as to correspond to at least one of a left eye and a right eye so as to directly provide an image to the front side of the eyes of the user.  FIG. 4B  illustrates an example in which the display unit  251  is located at a part corresponding to the right eye so as to output an image toward the right eye of the user. 
     The display unit  251  may project an image onto the eyes of the user by using a prism. Further, the prism may be light-transmissively formed so as to enable a user to view the projected image and a general view at a front side (a range viewed through the eyes of the user) together. 
     Accordingly, the image output through the display unit  251  may be displayed while overlapping a general view. The wearable device  200   b  may provide augmented reality (AR), in which a real image or background overlaps a virtual image, so that one image is displayed by using the characteristic of the display. 
     The camera  221  is disposed to be adjacent to at least one of the left eye and the right eye to photograph an image at a front side. The camera  221  is located to be adjacent to the eyes, so that the camera  221  may obtain a scene viewed by a user as an image. 
     The camera  221  may also be installed in the frame unit, and a plurality of cameras  221  may be provided to obtain a 3D image. 
     The glasses-type wearable device  200   b  may include user input units  223   a  and  223   b  manipulated so as to receive a control command. As long as a manner is a tactile manner performing a manipulation while detecting a tactile feeling, such as a touch or a push, of a user, the user input units  223   a  and  223   b  may adopt any type.  FIG. 4B  illustrates an example in which the user input unit  223   a  by the push input manner and the user input unit  223   b  by the touch input manner are provided in the frame unit and the control unit  280 , respectively. 
     Further, the glasses-type wearable device  220   b  may include a microphone (not illustrated) for receiving a sound and processing the received sound into electrical voice data, and a sound output module  252  for outputting a sound. The sound output module  252  may be configured to transmit a sound by a general sound output manner or a bone conduction manner. In a case where the sound output module  252  is implemented by the bone conduction manner, when a user wears the wearable device  200   b , the sound output module  252  is in close contact with a head, and vibrates a skull and transmits a sound. 
       FIG. 5  is a block diagram of an example of a wearable device. 
     In the example of  FIG. 5 , the wearable device  200  may include a wireless communication unit  210 , an input unit  220 , a sensing unit  240 , an output unit  250 , an interface unit  260 , a memory  270 , a control unit  280 , a power supply unit  290 , and the like. 
     For example, the wireless communication unit  210  among the constituent elements may include one or more modules capable of establishing wireless communication between the wearable device  200  and a wireless communication system, between the wearable device  200  and another device (for example, a mobile terminal or a wearable device), or the wearable device  200  and an external server. Further, the wireless communication unit  210  may include one or more modules for connecting the wearable device  200  to one or more networks. 
     The wireless communication unit  210  may include one or more of a broadcast receiving module  211 , a mobile communication module  212 , a wireless Internet module  213 , a short range communication module  214 , or a location information module  215 . 
     The broadcast receiving module  211  receives a broadcast signal and/or broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel and a terrestrial channel. 
     The mobile communication module  212  transceives a wireless signal with at least one of a base station, an external terminal, and a server on a mobile communication network established according to technical standards or a communication manner for mobile communication (for example, global system for mobile communication (GSM), code division multi access (CDMA), code division multi access 2000 (CDMA2000), enhanced voice-data optimized or enhanced voice-data only (EV-DO), wideband CDMA (WCDMA), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), and long term evolution-advanced (LTE-A)). 
     The wireless signal may include various types of data according to transception of a voice call signal, a video call signal, or a character/multimedia message. 
     The wireless Internet module  213  refers to a module for wireless Internet connection, and may be mounted inside or outside the wearable device  200 . The wireless Internet module  213  is configured to transceive a wireless signal on a communication network according to suitable wireless Internet technologies. 
     Examples of the wireless Internet technology include a wireless LAN (WLAN), wireless-fidelity (Wi-Fi), Wi-Fi direct, digital living network alliance (DLNA), wireless broadband (WiBro), world interoperability for microwave access (WiMAX), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), and long term evolution advanced (LTE-A), and the wireless Internet module  213  transceives data according to one or more wireless Internet technologies within a range including any suitable Internet technologies that are not listed here. 
     From the point of view that the wireless Internet connection by WiBro, HSDPA, HSUPA, GSM, CDMA, WCDMA, LTE, LTE-A, and the like are established through a mobile communication network, the wireless Internet module  213  may, in some implementations, perform wireless Internet connection through the mobile communication network and therefore function as mobile communication module  212 . 
     The short range communication module  214  is used for short range communication, and may support short range communication by using at least one of Bluetooth™, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, near field communication (NFC), Wi-Fi, Wi-Fi Direct, and/or wireless universal serial bus (wireless USB) technologies. The short range communication module  214  may support wireless communication between the wearable device  200  and a wireless communication system, between the wearable device  200  and another wearable device  200 , or the wearable device  200  and a network on which another wearable device  200  (or an external server) is located, through a short range wireless communication network (wireless area network). The short range wireless communication network may be a short range wireless personal network (e.g., a wireless personal area network). 
     The location information module  215  is a module used for obtaining a location (or a current location) of the wearable device, and a representative example thereof includes a GPS module or a Wi-Fi module. For example, when the wearable device utilizes a GPS module, it is possible to obtain a location of the wearable device by using a signal transmitted by a GPS satellite. As another example, when the wearable device utilizes a Wi-Fi module, it is possible to obtain a location of the wearable device based on information about a wireless Access Point (AP) transmitting or receiving a wireless signal with the Wi-Fi module. Alternately or additionally, the location information module  215  may perform a specific function of another module of the wireless communication unit  210  in order to obtain data on a location of the wearable device as necessary. The location information module  215  is a module used for obtaining a location (or a current location) of the wearable device, and is not limited to a module which directly calculates or obtains a location of the wearable device. 
     The input unit  220  may include a camera  221  or an image input unit for inputting an image signal, a microphone  222  or an audio input unit for inputting an audio signal, and a user input unit  223  (for example, a touch key and a push key (mechanical key)) for receiving an input of information from a user. Voice data or image data collected by the input unit  220  may be analyzed and processed by a control command of the user. 
     The camera  221  processes an image frame, such as a still image or a moving image, obtained by an image sensor in a video call mode or a photography mode. The processed image frame may be displayed on the display unit  251  or stored in the memory  270 . In some implementations, the plurality of cameras  221  provided in the wearable device  200  may be disposed in a matrix structure, and a plurality of elements of image information having various angles and focuses may be input into the wearable device  200  through the cameras  221  having the matrix structure. Further, the plurality of cameras  221  may be disposed in a stereo structure so as to obtain a left image and a right image for implementing a 3D image. 
     The microphone  222  processes an external sound signal into electrical voice data. The processed voice data may be variously utilized according to a function (or a currently executed application program) performed (e.g., concurrently) by the wearable device  200 . In some implementations, various noise removing algorithms for removing a noise generated during a process of receiving an input of an external sound signal may be implemented in the microphone  222 . 
     The user input unit  223  is used for receiving an input of information from the user, and when information is input through the user input unit  223 , the control unit  280  may control an operation of the wearable device  200  so as to correspond to the input information. The user input unit  223  may include a mechanical input means (or a mechanical key, for example, a button, a dome switch, a jog wheel, and a jog switch positioned on a front and/or rear surface or a lateral surface of the wearable device  200 ) and/or a touch-type input means. For example, the touch type input means may be formed of a virtual key, a soft key, or a visual key displayed on a touch screen through software processing, or a touch key disposed at a part other than the touch screen, and the virtual key or the visual key may be displayed on the touch screen with various forms, and formed by, for example, graphic, text, an icon, a video, or a combination thereof. 
     The sensing unit  240  may include one or more sensors for sensing at least one element of wearable device-inside information, information about a surrounding environment surrounding the wearable device, and user information. For example, the sensing unit  240  may include at least one of a wearing detecting unit  241 , a proximity sensor, an illumination sensor, a touch sensor, an acceleration sensor, a magnetic sensor, a gravity-sensor (G-sensor), a gyroscope sensor, a motion sensor, an RGB sensor, an infrared sensor (IR sensor), a finger scan sensor, an ultrasonic sensor, an optical sensor (for example, see the camera  221 ), a microphone (see the microphone  222 ), a battery gauge, an environment sensor (for example, a barometer, a hygrometer, a thermometer, a radioactivity detecting sensor, a thermal detecting sensor, and a gas detecting sensor), and a chemical sensor (for example, an electronic nose, a healthcare sensor, and a biometric sensor). In some implementations, the wearable device may combine information sensed by two or more sensors among the sensors and utilize the combined information. 
     The control unit  280  may control driving or an operation of the wearable device  200  based on the sensing signal, or perform data processing, a function, or an operation related to an application program installed in the wearable device  200 . 
     Hereinafter, representative sensors among the various sensors includable in the sensing unit  240  will be described in more detail. 
     The wearing detecting unit  241  may detect whether the user of the wearable device  200  is wearing the wearable device  200 . The wearing detecting unit  241  may detect whether the user is wearing the wearable device  200  by using any one of the proximity sensor, the illumination sensor, the touch sensor, the motion sensor, the IR sensor, and the ultrasonic sensor. 
     The proximity sensor refers to a sensor for detecting whether an object approaching a predetermined detection surface or an object existing at the vicinity exists by using force of an electromagnetic field or infrared rays without a mechanical contact. The proximity sensor may be disposed in an internal area of the wearable device surrounded by the aforementioned touch screen or around the touch screen. 
     Examples of the proximity sensor include a transmissive optical electric sensor, a direct reflective optical electric sensor, a mirror reflective optical electric sensor, a high-frequency oscillation-type proximity sensor, a capacitive proximity sensor, a magnetic proximity sensor, and an IR proximity sensor. When the touch screen is a capacitive type, the proximity sensor may be configured to detect approach of an object based on a change in an electric field according to approach of a conductive object. In this case, the touch screen (or the touch sensor) itself may be divided into the proximity sensor. 
     For convenience of description, an action in which an object approaches the touch screen while not being in contact with the touch screen, so that the object is recognized to be located on the touch screen, is referred to as “a proximity touch,” and an action in which an object is actually in contact with the touch screen is referred to as “a contact touch.” The position at which the object is proximity-touched on the touch screen refers to a position at which the object vertically corresponds to the touch screen when the object is proximity-touched. The proximity sensor may detect a proximity touch and a proximity touch pattern (for example, a proximity touch distance, a proximity touch direction, a proximity touch speed, a proximity touch time, a proximity touch position, or a proximity touch movement state). In some implementations, the control unit  280  may process data (or information) corresponding to the proximity touch operation and the proximity touch pattern detected by the proximity sensor, and further, output visual information corresponding to processed data on the touch screen. Further, the control unit  280  may control the wearable device  200  so that different operations or data (or information) are processed according to whether the touch at the same point on the touch screen is a proximity touch or a contact touch. 
     The touch sensor detects a touch (or a touch input) applied to the touch screen (or the display unit  251 ) by using at least one of various touch methods, such as a resistive method, a capacitive method, an IR method, an ultrasonic method, and/or a magnetic method. 
     As an example, the touch sensor may be configured to convert a change in a pressure applied to a specific region of the touch screen, a capacitance and the like generated at a specific region, or the like into an electrical input signal. The touch sensor may be configured to detect a position and an area, in which a touch object applying a touch onto the touch screen is touched, on the touch sensor, a pressure during the touch, capacitance during the touch, and the like. Here, the touch object is an object applying a touch to the touch sensor, for example, a finger, a touch pen, a stylus pen, and a pointer. 
     As described above, when a touch input is generated in the touch sensor, a signal(s) corresponding to the touch input is transmitted to a touch controller. The touch controller processes the signal(s), and then transmits corresponding data to the control unit  280 . Accordingly, the control unit  280  may recognize a region of the display unit  251 , in which the touch is made. Here, the touch controller may be a separate constituent element from the control unit  280 , or be the control unit  280  itself. 
     In some implementations, the control unit  280  may perform different controls or the same control according to the kinds of touch objects touching the touch screen (or a touch key provided other than the touch screen). Whether to perform different controls or the same control according to the kinds of touch objects may be determined according to a current operation state of the wearable device  200  or a currently executed application program. 
     The touch sensor and the proximity sensor, which have been described above, may sense various kinds of touches, such as a short (or tap) touch, a long touch, a multi-touch, a drag touch, a flick touch, a pinch-in touch, a pinch-out touch, a swype touch, and/or a hovering touch, to the touch screen independently or in combination. 
     The ultrasonic sensor may recognize location information about a detection target by using ultrasonic waves. In some implementations, the control unit  280  may calculate a location of a wave generating source based on information sensed by the optical sensor and the plurality of ultrasonic sensors. The position of the wave generating source may be calculated by using a property that light is much faster than ultrasonic waves, that is, a time, for which light reaches the optical sensor, is much shorter than a time, for which ultrasonic waves reach the ultrasonic sensor. For example, it may be possible to calculate the position of the wave generating source by using a difference in reaching time between light as a reference signal and ultrasonic waves. 
     In some implementations, the camera  221 , which has been described as the constituent element of the input unit  220 , includes at least one of a camera sensor (for example, a CCD and a CMOS), a photo sensor (or an image sensor), and a laser sensor. 
     The camera  221  and the laser sensor may be combined with each other to detect a touch of a detection target to a 3D image. The photo sensor may be stacked on the display device, and the photo sensor is configured to scan a movement of a detection target approaching the touch screen. More particularly, the photo sensor, in which photo diodes and transistors (TR) are mounted in rows and columns, scans contents put on the photo sensor by using an electric signal changed according to a quantity of light applied to the photo diode. For example, the photo sensor may calculate coordinates of the detection target according to a variation amount of light, and obtain location information about the detection target through the calculated coordinates. 
     The output unit  250  generates an output related to a sense of sight, a sense of hearing, or a sense of touch, and may include at least one of the display unit  251 , the sound output unit  252 , a haptic module  253 , and an optical output unit  254 . The display unit  251  may be formed in a layer structure with the touch sensor or be integrally formed with the touch sensor to implement the touch screen. The touch screen may serve as the user input unit  223  providing an input interface between the wearable device  200  and the user, and provide an output interface between the wearable device  200  and the user. 
     The display unit  251  may display or otherwise output information processed by the wearable device  200 . For example, the display unit  251  may display execution image information about an application program driven by the wearable device  200 , or user interface (UI) and graphic user interface (GUI) information according to the execution image information. Further, the display unit  251  may be configured as a 3D display unit displaying a 3D image. 
     A 3D display method, such as a stereoscopic method (glasses method), an auto stereoscopic method (glassless method), and a projection method (holographic method, may be applied to the 3D display unit. 
     The sound output unit  252  may output audio data received from the wireless communication unit  210  in call signal reception mode, a call mode, a recording mode, a voice recognition mode, and a broadcast reception mode, or stored in the memory  270 . The sound output unit  252  may also output a sound signal related to a function (for example, a call signal reception sound and a message reception sound) performed by the wearable device  200 . The sound output unit  252  may include a receiver, a speaker, a buzzer, and the like. 
     The haptic module  253  generates various tactile effects felt by the user. A representative example of the tactile effect generated by the haptic module  253  may be a vibration. Intensity, a pattern, and the like of the vibration generated by the haptic module  253  may be controlled by a selection of the user or setting of the control unit. For example, the haptic module  253  may combine different vibrations and output the combined vibrations, or sequentially output different vibrations. 
     The haptic module  253  may generate various tactile effects, such as an effect by injection force or suction force of air through a pin arrangement vertically moving with respect to a contact skin surface, an injection hole, or a suction hole, brush against a surface of skin, a contact of an electrode, and an effect by stimulation of electromagnetic force, and an effect by reproduction of thermal feedback by using a heat absorbing or heating device, in addition to vibrations. 
     The haptic module  253  may also be implemented to deliver a tactile effect through a direct contact, and make the user feel a tactile effect through kinesthesia of a finger, an arm, and the like. Two or more haptic modules  253  may be provided according to the configuration of the wearable device  200 . 
     The interface unit  260  serves as a passage for various kinds of external devices connected to the wearable device  200 . The interface unit  260  may include at least one of a wire/wireless headset port, an external charger port, a wire/wireless data port, a memory card port, a port for connecting a device provided with an identification module, an audio input/output (I/O) port, a video input/output (I/O) port, and an earphone port. The wearable device  200  may perform an appropriate control related to a connected external device in response to the connection of the external device to the interface unit  260 . 
     In some implementations, the identification module is a chip storing various pieces of information for identifying use authorization of the wearable device  200 , and may include a user identity module (UIM), a subscriber identity module (SIM), a universal subscriber identity module (USIM). The device provided with the identification module (hereinafter, the “identification device”) may be manufactured by a smart card type. Accordingly, the identification device may be connected with the terminal  200  through the interface unit  260 . 
     Further, the interface unit  260  may be a passage through which power from a cradle is supplied to the wearable device  200 , or a passage through which various command signals input from the cradles by the user are transmitted to the wearable device  200  when the wearable device  200  is connected with the external cradle. The various command signals or the power input from the cradle may be operated as signals for recognizing that the wearable device  200  is accurately mounted in the cradle. 
     The memory  270  stores data supporting various functions of the wearable device  200 . The memory  270  may store a plurality of application programs (or applications) driven by the wearable device  200 , and data and commands for operating the wearable device  200 . At least some of the application programs may be downloaded from an external server through wireless communication. Further, at least some of the application programs may exist in the wearable device  200  from a release time for a basic function (for example, a call receiving and sending function and a message receiving and sending function) of the wearable device  200 . In the meantime, the application program may be stored in the memory  270 , and installed in the wearable device  200  to be driven to perform the operation (or function) of the wearable device  200  by the control unit  280 . 
     The memory  270  may temporarily store input/output data (for example, a phone book, messages, still images, and moving images). The memory  270  may store data about various patterns of vibration and sound output when a touch is input into the touch screen. 
     The memory  270  may include at least one type of storage medium among a flash memory type, a hard disk type, a solid state disk (SSD) type, a silicon disk drive (SDD) type, a multimedia card micro type, a card-type memory (for example, an SD or XD memory), a random access memory (RAM), a static random access (SRAM) memory, a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a programmable read-only memory (PROM), a magnetic memory, a magnetic disk, and/or an optical disk. The wearable device  200  may be operated in association with a web storage which performs a storage function of the memory  270  on the Internet. 
     The control unit  280  generally controls operations of the wearable device  200 , in addition to operations related to the application program. The control unit  280  may provide or process appropriate information or functions to the user by processing a signal, data, information, and the like input or output through the aforementioned constituent elements, or driving an application program stored in the memory  270 . 
     Further, the control unit  280  may control at least some of the constituent elements in order to drive an application program stored in the memory  270 . Further, the control unit  280  may combine and operate two or more of the constituent elements included in the wearable device  200  in order to drive the application program. 
     The power supply unit  290  receives external power and internal power and supplies power to each constituent element included in the wearable device  200  under the control of the control unit  280 . The power supply unit  290  includes a battery, and the battery may be an embedded battery or a replaceable battery. 
     Further, the power supply unit  290  may include a connection port, and the connection port may be configured as one example of the interface  260  electrically connected with an external charger, which supplies power for charging the battery. 
     As another example, the power supply unit  290  may be configured to charge the battery in a wireless manner without using the connection port. In this case, the power supply unit  290  may receive power from an external wireless power transmitting device by using one or more of an inductive coupling method based on a self-induction effect or a magnetic resonance coupling method based on an electromagnetic resonance effect. 
     At least some of the constituent elements may be cooperatively operated in order to implement the operation, the control, or the control method of the wearable device according to some implementations which are to be described below. Further, the operation, the control, or the control method of the wearable device may be implemented on the wearable device by driving one or more application programs stored in the memory  270 . 
     In some implementations, techniques may be implemented in a recording medium readable by a computer or a device similar to the computer by using, for example, software, hardware, or a combination thereof. 
     In some cases, each constituent element of the mobile terminal  300  may be described based on the constituent element of the aforementioned wearable device. 
       FIG. 6  is a flowchart of an example of operations of a vehicle and a wearable device according to a first implementation. 
     In the first example implementation of  FIG. 6 , the wearable device  200  may be linked with the vehicle  100  in a state of not being connected with the mobile terminal  300  (for example, a smart phone). 
     First, an operation of the vehicle  100  according to the first implementation will be described with reference to  FIG. 6 . 
     The control unit  180  of the vehicle  100  performs pairing with the wearable device  200  through the short range communication module  113  (S 605 ). 
     For example, when a user wearing the previously registered wearable device  200  gets in the vehicle  100 , the control unit  180  of the vehicle  100  performs identification on the wearable device  200 , and then performs pairing with the wearable device  200  by using a short range communication manner. In this case, the short range communication manner may adopt the Bluetooth manner, but may use at least one of radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, near field communication (NFC), Wi-Fi, Wi-Fi direct, and/or wireless universal serial bus (wireless USB). 
     After the pairing with the wearable device  200 , the control unit  180  of the vehicle  100  determines whether the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200  (S 610 ). The control unit  180  of the vehicle  100  may determine whether the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200  through the interface unit  170 . 
     When the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200 , the control unit of the vehicle  100  provides electric energy to the wearable device  200  through the interface unit  170  (S 615 ). In this case, the electric energy is for charging the wearable device  200 . 
     Then, the control unit  180  of the vehicle  100  is connected to a mobile communication network through the wearable device  200  (S 620 ). 
     The wearable device  200  may be connected to the mobile communication network through the mobile communication module  212  (see  FIG. 5 ). Here, the mobile communication network is a network using any one mobile communication manner among global system for mobile communication (GSM), code division multi access (CDMA), code division multi access 2000 (CDMA2000), enhanced voice-data optimized or enhanced voice-data only (EV-DO), wideband CDMA (WCDMA), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), and long term evolution-advanced (LTE-A). 
     In some implementations, when a communication module for the connection to the mobile communication network is not provided in the vehicle  100 , and the vehicle  100  is electrically connected to the wearable device  200 , the control unit  180  of the vehicle  100  may be connected to the mobile communication network through the mobile communication module  212  (see  FIG. 5 ) included in the wearable device  200 . 
     In the state of being connected to the mobile communication network, the control unit  180  of the vehicle  100  may output information received in the wearable device  200  (S 625 ). For example, the control unit  180  of the vehicle  100  may receive the information received in the wearable device  200  from the wearable device  200  through the interface unit  170  (see  FIG. 3 ), and output the received information through the output unit  140 . 
     Here, the information received in the wearable device  200  may be call reception information or text/multimedia message reception information received from a device of a counterpart connecting to the mobile communication network. 
     For example, when a call is received in the wearable device  200  in a state where the control unit  180  of the vehicle  100  is connected to the mobile communication network, the control unit  180  of the vehicle  100  may output call reception information to any one of the display unit  141 , the sound output unit  142 , and the haptic output unit  143 . Then, when a user input for a phone call is received through the input unit  120 , the control unit  180  of the vehicle  100  may perform a voice input and output operation by controlling the microphone  123  and the sound output unit  142  so that the user may have a phone call with a counterpart. 
     As another example, when a text message is received in the wearable device  200  in a state where the control unit  180  of the vehicle  100  is connected to the mobile communication network, the control unit  180  of the vehicle  100  may output the received text message through the display unit  141 . As another example, the control unit  180  of the vehicle  100  may text-to-speech (TTS) convert the received text message into speech and output the speech in a form of a voice through the sound output unit  142 . Then, the control unit  180  of the vehicle  100  may receive a voice input of a passenger through the microphone  123 , speech-to-text (STT) convert the received voice input into text, and transmit the text to a device of a counterpart. 
     In some implementations, the control unit  180  of the vehicle  100  may receive driving assistance information (for example, navigation information, road information, accident information, and emergency rescue information) or infotainment service (for example, Internet, TV program contents, a movie, and a game) from an external server through the mobile communication network. In this case, the display unit  141  and the sound output unit  142  may function as a telematics device by using the wearable device  200 . 
     The control unit  180  of the vehicle  100  may establish a short range wireless communication network through the short range communication module  113  in the state of being connected to the mobile communication network (S 630 ). Here, the short range wireless communication network may be a network to which a plurality of devices may be connected by using the short range communication manner. Further, the short range wireless communication network may be connected with the mobile communication network. Here, the short range wireless communication network may use the Wi-Fi manner, but may use at least one of Bluetooth™, radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, near field communication (NFC), Wi-Fi, Wi-Fi direct, and wireless universal serial bus (wireless USB) technologies. 
     Then, the control unit  180  of the vehicle  100  determines whether the connection with the wearable device  200  is released (S 635 ), and when the connection with the wearable device  200  is not released, performs operations of S 615  to S 630 . 
     In some implementations, when the user of the wearable device  200  releases a wearing state of the wearable device  200  in a state of getting in the vehicle  100 , the control unit  180  of the vehicle  100  may receive information on a non-wearing state. Here, the determination whether the user of the wearable device  200  gets in the vehicle  100  may be performed based on whether the vehicle  100  and the wearable device  200  are connected through the short range wireless communication. 
     For example, when the wearing detecting unit  241  of the wearable device  200  may detect whether the user wears the wearable device  200 , and the control unit  180  of the vehicle  100  may receive information about whether the user wears the wearable device  200 . 
     When the control unit  180  of the vehicle  100  is not electrically connected with the wearable device  200  in the non-wearing state in operation S 610 , the control unit  180  of the vehicle  100  outputs a message for checking charging through the output unit  140  (S 640 ). The output of the message for checking charging has an effect in that when the wearable device  200  is not connected with the control unit  180  of the vehicle  100  even though the user of the wearable device  200  releases the wearing state for the electrical connection with the vehicle  100 , the user may recognize the disconnection. 
     In some implementations, the control unit  180  of the vehicle  100  may perform identification on a passenger possessing the wearable device  200  before being paired with the wearable device  200  (S 605 ) or being electrically connected with the wearable device  200  (S 610 ). 
     The biometric information detecting unit  131  (see  FIG. 3 ) may detect biometric information about a passenger. The control unit  180  of the vehicle  100  may be matched with the wearable device and compare first biometric information about a user of the wearable device stored in the memory  160  (see  FIG. 3 ) and second biometric information about the passenger detected through the biometric information detecting unit. 
     When the first biometric information is matched with the second biometric information, the passenger is identified, and the control unit  180  of the vehicle  100  may be connected with the wearable device  200  through the short range wireless communication (S 605 ) or electrically connected with the wearable device  200  (S 610 ). 
     When the first biometric information is not matched with the second biometric information, so that the passenger is not identified, the control unit  180  of the vehicle  100  is not connected with the wearable device  200  through the short range wireless communication (S 605 ) and is not electrically connected with the wearable device  200  (S 610 ). 
     Next, an operation of the wearable device  200  according to the first implementation will be described with reference to  FIG. 6 . 
     The control unit  280  of the wearable device  200  performs pairing with the vehicle  100  through the short range communication module  213  (S 655 ). 
     For example, when a user wearing the wearable device  200  gets in the previously registered vehicle  100 , the control unit  280  of the wearable device  200  performs identification on the vehicle  100 , and performs pairing with the vehicle  100  by using the short range communication manner. Here, the short range communication network may adopt the Bluetooth™ manner, but may use at least one of radio frequency identification (RFID), infrared data association (IrDA), ultra wideband (UWB), ZigBee, near field communication (NFC), Wi-Fi, Wi-Fi direct, and wireless universal serial bus (wireless USB) technologies. 
     The control unit  280  of the wearable device  200  may determine whether the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100  (S 660 ). For example, the control unit  280  of the wearable device  200  may determine whether the control unit  280  of the wearable device  200  is connected with the vehicle  100  through the interface unit  260 . 
     When the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100 , the control unit  280  of the wearable device  200  receives electric energy from the vehicle  100  through the interface unit  260 , and is charged by using the received electric energy (S 665 ). 
     The wearable device  200  is connected to the mobile communication network through the mobile communication module  212  (see  FIG. 5 ) (S 670 ). In the present example, it is described that the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100 , and then is connected to the mobile communication network (S 670 ), but the wearable device  200  may always be connected to the mobile communication network in a state where a power supply of the wearable device  200  is turned on. 
     The control unit  280  of the wearable device  200  receives predetermined information through the mobile communication network in a state of being connected to the mobile communication network, and transmits the received information to the vehicle  100  through the interface unit  260  (see  FIG. 5 ) (S 675 ). Here, the received information may be call reception information or text/multimedia message reception information received from a device of a counterpart connected to the mobile communication network. 
     Then, the control unit  280  of the wearable device  200  determines whether the connection with the vehicle  100  is released (S 680 ), and when the connection with the vehicle  100  is not released, operations of S 665  to S 675  are performed. 
     In some implementations, when the user of the wearable device  200  is in a state of getting in the vehicle  100 , and the wearable device  200  is in a non-wearing state and is not electrically connected with the vehicle  100 , the control unit  280  of the wearable device  200  may transmit information on a non-wearing state to the vehicle  100  (S 685 ). Here, the determination whether the user of the wearable device  200  gets in the vehicle  100  may be performed based on whether the vehicle  100  and the wearable device  200  are connected through the short range wireless communication. Here, the information on the non-wearing state may be obtained by the wearing detecting unit  241 . 
       FIG. 7  is a flowchart of an example of operations of a vehicle and a wearable device according to a second implementation. 
     In the example second implementation of  FIG. 7 , a user may get in the vehicle  100  in a state where the wearable device  200  is connected with the mobile terminal  300  (for example, a smart phone). Hereinafter, the second implementation will be described according to differences from the first implementation that was illustrated in  FIG. 6 . Unless specifically mentioned, contents described in the example first implementation of  FIG. 6  may also be applied to the second implementation of  FIG. 7 . 
     First, an example of an operation of the vehicle  100  according to the second implementation will be described with reference to  FIG. 7 . 
     The control unit  180  of the vehicle  100  receives information on a wearing state of the wearable device  200  from the wearable device  200  (S 701 ). For example, when a user wears the wearable device  200 , the control unit  180  of the vehicle  100  receives information on a wearing state of the wearable device  200 . When the user does not wear the wearable device  200 , the control unit  180  of the vehicle  100  receives information on a non-wearing state. Here, information on the wearing state or the non-wearing state may be received in a form of a beacon signal before the vehicle  100  is paired with the wearable device  200 . 
     After the information on the wearing state or the non-wearing state is received, the control unit  180  of the vehicle  100  receives an input for selecting any one of the wearable device  200  and the mobile terminal  300  (S 703 ). For example, the control unit  180  of the vehicle  100  displays a selection input image for selecting one of the wearable device and the mobile terminal to be first paired on the display unit  141 , and receives a user input through the selection input image, and selects any one of the wearable device  200  and the mobile terminal  300 . 
     When the wearable device  200  is selected, the control unit  180  of the vehicle  100  performs pairing with the wearable device  200  (S 705 ). 
     After being paired with the wearable device  200 , the control unit  180  of the vehicle  100  determines whether the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200  (S 707 ). 
     When the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200 , the control unit  180  of the vehicle  100  provides electric energy to the wearable device  200  through the interface unit  170  (S 709 ). 
     Then, the control unit  180  of the vehicle  100  is connected to the mobile communication network through the wearable device  200  (S 711 ). 
     In the state of being connected to the mobile communication network, the control unit  180  of the vehicle  100  may output information received in the wearable device  200  (S 713 ). 
     In the state of being connected to the mobile communication network, the control unit  180  of the vehicle  100  may establish a short range wireless communication network through the short range communication module  113  (S 715 ). 
     Then, the control unit  180  of the vehicle  100  determines whether the connection with the wearable device  200  is released (S 717 ), and when the connection with the wearable device  200  is not released, operations of S 709  to S 715  are performed. 
     When the mobile terminal  300  is selected in operation S 703 , the control unit  180  of the vehicle  100  performs pairing with the mobile terminal  300  (S 719 ). 
     When the control unit  180  of the vehicle  100  is paired with the mobile terminal  300 , the control unit  180  of the vehicle  100  may output information received in the mobile terminal  300  (S 721 ). For example, the control unit  180  of the vehicle  100  may receive the information received in the mobile terminal  300  from the mobile terminal  300  through the interface unit  170  (see  FIG. 3 ), and output the received information through the output unit  140 . 
     Here, the information received in the mobile terminal  300  may be call reception information or text/multimedia message reception information received from a device of a counterpart accessing the mobile communication network. 
     In some implementations, although not illustrated, similar to the case where the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200 , when the control unit  180  of the vehicle  100  is electrically connected with the mobile terminal  300 , the control unit  180  of the vehicle  100  may be connected to the mobile communication network through the mobile terminal  300 . Further, the control unit  180  of the vehicle  100  may also establish a short range wireless communication network through the short range communication module  113 . 
     When the user of the wearable device  200  gets in the vehicle  100 , and the wearable device  200  is in the non-wearing state, and the control unit  180  of the vehicle  100  is not electrically connected with the wearable device  200  in operation S 707 , the control unit  180  of the vehicle  100  may output a message for checking charging through the output unit  140  (S 723 ). 
     Next, an example of an operation of the wearable device  200  according to the second implementation will be described with reference to  FIG. 7 . 
     The wearable device  200  performs pairing with the mobile terminal  300  (S 731 ). 
     In a state of being paired with the mobile terminal  300 , the control unit  280  of the wearable device  200  may receive information stored in the mobile terminal  300  (S 732 ). For example, in a state of being connected with the mobile terminal  300  through short range wireless communication, the control unit  280  of the wearable device  200  may receive alarm or schedule information stored in the mobile terminal  300 . 
     In the state of being connected with the mobile terminal  300  through short range wireless communication, the control unit  280  of the wearable device  200  determines whether the user wears the wearable device  200  (S 733 ). The control unit  280  of the wearable device  200  may determine whether the user wears the wearable device  200  based on sensing data of the wearing detecting unit  241 . 
     When the wearable device  200  is in the non-wearing state, the control unit  280  of the wearable device  200  performs pairing with the vehicle  100  (S 735 ). 
     After being paired with the vehicle  100 , the control unit  280  of the wearable device  200  determines whether the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100  (S 737 ). 
     When the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100 , the control unit  280  of the wearable device  200  transmits information on an electrical connection state with the vehicle  100  to the mobile terminal  300 . 
     Then, the control unit  280  of the wearable device  200  releases the pairing with the mobile terminal  300  (S 741 ). 
     When the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100 , the control unit  280  of the wearable device  200  receives electric energy from the vehicle  100  through the interface unit  260 , and is charged by using the received electric energy (SS 743 ). 
     The wearable device  200  is connected to the mobile communication network through the mobile communication module  212  (see  FIG. 5 ) (S 747 ). In the present example, it is described that the control unit  280  of the wearable device  200  is electrically connected with the vehicle  100 , and then is connected to the mobile communication network (S 670 ), but the wearable device  200  may always be connected to the mobile communication network in a state where a power supply of the wearable device  200  is turned on. 
     The control unit  280  of the wearable device  200  receives predetermined information through the mobile communication network in a state of being connected to the mobile communication network, and transmits the received information to the vehicle  100  through the interface unit  260  (see  FIG. 5 ) (S 749 ). 
     Then, the control unit  280  of the wearable device  200  determines whether the connection with the vehicle  100  is released (S 751 ), and when the connection with the vehicle  100  is not released, operations of S 743  to S 749  are performed. 
     When it is determined that the user wears the wearable device  200  in operation  733 , the control unit  280  of the wearable device  200  may transmit information on a wearing state to at least one of the vehicle  100  and the mobile terminal  300  (S 753 ). 
     In some implementations, when the user of the wearable device  200  gets in the vehicle  100 , and the wearable device  200  is in a non-wearing state and is not electrically connected with the vehicle  100  in operation S 737 , the control unit  280  of the wearable device  200  may transmit information on a non-wearing state to the vehicle  100  (S 755 ). 
     Next, an operation of the mobile terminal  300  according to the second implementation will be described with reference to  FIG. 7 . 
     The mobile terminal  300  is connected with the wearable device  200  through the short range wireless communication. In the state of being connected through the short range wireless communication, the mobile terminal  300  may transmit information stored in the memory of the mobile terminal  300  to the wearable device  200 . Here, the information stored in the memory may be alarm or schedule information. 
     The mobile terminal  300  may receive the information on the wearing state from the wearable device  200 . 
     When the mobile terminal  300  receives information on a connection state with the vehicle  100  from the wearable device  200 , the mobile terminal  300  may change a notification method (S 775 ). For example, when the mobile terminal  300  receives the information on the connection state with the vehicle  100  from the wearable device  200  in a state where the notification method of the mobile terminal  300  is set to be silent, the mobile terminal  300  may change the notification method to a sound or a vibration. 
     When the user of the wearable device  200  gets in the vehicle  100 , and the wearable device  200  is in the non-wearing state, and is not electrically connected with the vehicle  100 , the mobile terminal  300  may output a message for checking charging of the wearable device  200  (S 777 ). 
     When the mobile terminal  300  is paired with the vehicle  100  (S 781 ), the mobile terminal  300  transmits information received in the mobile terminal  300  to the vehicle  100  through the mobile communication network (S 783 ). 
       FIGS. 8 to 14  are diagrams illustrating examples of an operation of the vehicle when the vehicle and the wearable device are electrically connected. 
       FIG. 8  illustrates an example of a message displayed on the display unit  141  of the vehicle  100  when the vehicle  100  and the wearable device  200  are electrically connected. 
     As illustrated in the example of  FIG. 8 , the vehicle  100  may include the interface unit  170  in a predetermined region of the center fascia. Here, the interface unit  170  serves as a passage for various kinds of external devices connected to the vehicle  100 , and may include a holding part and a connection part. The holding part includes a holding means (for example, a form of a hole, a drawer, and a shelf) on which an external device may be held. The connection part includes a connection means (for example, a connection pin and a connection port) through which an external device may be connected. 
     When the vehicle  100  is electrically connected with the interface unit  260  of the wearable device  200  through the connection part, the control unit  180  of the vehicle  100  provides electric energy to the wearable device  200 . The wearable device  200  performs charging based on the electric energy provided from the vehicle  100 . In this case, the control unit  180  of the vehicle  100  displays charge status information of the wearable device  200  on the display unit  141 . 
       FIG. 9  is a diagram illustrating an example of an operation in which the vehicle  100  is connected to a mobile communication network through the wearable device  200 . 
     Referring to the example of  FIG. 9 , when the control unit  180  of the vehicle  100  is electrically connected with the wearable device  200 , the control unit  180  of the vehicle  100  is connected to a mobile communication network  910  through the wearable device  200 . Here, the mobile communication network is a network using any one mobile communication manner among global system for mobile communication (GSM), code division multi access (CDMA), code division multi access 2000 (CDMA2000), enhanced voice-data optimized or enhanced voice-data only (EV-DO), wideband CDMA (WCDMA), high speed downlink packet access (HSDPA), high speed uplink packet access (HSUPA), long term evolution (LTE), and/or long term evolution-advanced (LTE-A). 
     When a communication module for the access to the mobile communication network is not provided in the vehicle  100 , and the vehicle  100  is electrically connected to the wearable device  200 , the control unit  180  of the vehicle  100  may be connected to the mobile communication network through the mobile communication module  212  (see  FIG. 5 ) included in the wearable device  200 . 
     The control unit  180  of the vehicle  100  may exchange data while communicating with at least one of another vehicle  420 , an external server  410 , a counterpart mobile terminal  920 , and a counterpart wearable device  930  through the mobile communication network  910 . 
     For example, the control unit  180  of the vehicle  100  may receive traffic information collected by another vehicle  420  by communicating with another vehicle  420  through the mobile communication network  910 . 
     For example, the control unit  180  of the vehicle  100  may receive driving assistant information (for example, navigation information, road information, accident information, and emergency rescue information) or infotainment service (for example, the Internet, TV program contents, movies, and games) by communicating with the external server  410  through the mobile communication network  910 . 
       FIGS. 10A and 10B  are diagrams illustrating examples of an operation in which the vehicle  100  receives and displays a call signal or a text/multimedia message in a state of being connected to the mobile communication network through the wearable device  200 . 
     The control unit  180  of the vehicle  100  may receive information received in the wearable device  200  from the wearable device  200  through the interface unit  170  (see  FIG. 3 ), and output the received information through the output unit  140 . 
     As illustrated in the example of  FIG. 10A , a call is received in the wearable device  200  from the counterpart terminal  920  (see  FIG. 9 ) in the state where the control unit  180  of the vehicle  100  is connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 , the control unit  180  of the vehicle  100  may output call reception information. For example, the control unit  180  of the vehicle  100  may control so that the call reception information is displayed on the display unit  141 . As another example, the control unit  180  of the vehicle  100  may control so that the call reception information is output in a form of a voice through the sound output unit  142 . 
     Next, the control unit  180  of the vehicle  100  may receive a user input for a call connection through the input unit  120 . Then, when the user input for the call connection is received, the control unit  180  of the vehicle  100  may perform a voice input and output operation by controlling the microphone  123  and the sound output unit  142  so that the user may have a phone call with the counterpart terminal  920  (see  FIG. 9 ). The output user voice may be transmitted to the counterpart terminal  920  (see  FIG. 9 ) through the mobile communication network  910  (see  FIG. 9 ). 
     As illustrated in the example of  FIG. 10B , a text message is received in the wearable device  200  from the counterpart terminal  920  (see  FIG. 9 ) in the state where the control unit  180  of the vehicle  100  is connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 , the control unit  180  of the vehicle  100  may output the received text message through the display unit  141 . As another example, the control unit  180  of the vehicle  100  may TTS-convert the received text message into speech and output the speech in a form of a voice through the sound output unit  142 . 
     Next, the control unit  180  of the vehicle  100  may receive a user input for transmitting a text message (reply) through the input unit  120 . For example, the control unit  180  of the vehicle  100  may receive the user input through a touch input for the display unit  141  or a voice input through the microphone  123 . When the voice input through the microphone  123  is received, the control unit  180  of the vehicle  100  STT-converts the received voice input into text, and then transmits the text to the counterpart terminal  920  (see  FIG. 9 ). 
       FIGS. 11 to 13  are diagrams of examples of an operation of receiving information from an external server (e.g., the external server  410 ) (see  FIG. 9 ) and displaying the received information. 
     The control unit  180  of the vehicle  100  may be connected to the external server  410  (see  FIG. 9 ) in a state of being connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 . Here, the external server may be a traffic information providing server or a weather information providing server. The control unit  180  of the vehicle  100  may receive various pieces of information from the external server  410  (see  FIG. 9 ) and output the received information. 
     For example, as illustrated in  FIG. 11 , the control unit  180  of the vehicle  100  may receive navigation information from the traffic information providing server, and display the received navigation information  1110  on a predetermined region of the display unit  141 . 
     For example, as illustrated in  FIG. 11 , the control unit  180  of the vehicle  100  may receive road traffic information from the traffic information providing server, and display the received road traffic information  1120  on a predetermined region of the display unit  141 . The control unit  180  of the vehicle  100  may also output the received road traffic information in a form of a voice through the sound output unit  142 . 
     For example, as illustrated in the example of  FIG. 11 , the control unit  180  of the vehicle  100  may receive weather information from the weather information providing server, and display the received weather information  1130  on a predetermined region of the display unit  141 . The control unit  180  of the vehicle  100  may also output the received weather information in a form of a voice through the sound output unit  142 . 
     In some implementations, the control unit  180  of the vehicle  100  may be connected to the external server  410  (see  FIG. 9 ) in a state of being connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 . Here, the external server may be a web portal server or an instant message service providing server. 
     For example, as illustrated in  FIG. 12 , the control unit  180  of the vehicle  100  may be connected to the web portal server and receive a web page image, and display the received web page image  1210  on a predetermined region of the display unit  141 . 
     For example, as illustrated in  FIG. 12 , the control unit  180  of the vehicle  100  may be connected to the instant message service providing server and receive an instant message image, and display the received instant message image  1220  on a predetermined region of the display unit  141 . In this case, the user may exchange an instant message with a counterpart terminal through the displayed instant message image  1220 . 
     In some implementations, the control unit  180  of the vehicle  100  may display a plurality of pieces of information on one screen. For example, first information may be displayed on a first region of the display unit  141 , second information may be displayed on a second region of the display unit  141 , and third information may be displayed on a third region of the display unit  141 . Further, the control unit  180  of the vehicle  100  may adjust sizes of the first to third regions according to a user input. 
     The control unit  180  of the vehicle  100  may, in some cases, be connected to the external server  410  (see  FIG. 9 ) in a state of being connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 . Here, the external server may be an image or game service providing server. 
     For example, as illustrated in  FIG. 13 , the control unit  180  of the vehicle  100  may be connected to the image service providing server and receive image contents, and display the received image contents  1310  on a predetermined region of the display unit  141 . In this case, the control unit  180  of the vehicle  100  may output a sound included in the image contents through the sound output unit  142 . 
     For example, as illustrated in  FIG. 13 , the control unit  180  of the vehicle  100  may be connected to the game service providing server and receive game contents, and display the received game contents  1320  on a predetermined region of the display unit  141 . In this case, the control unit  180  of the vehicle  100  may output a sound included in the game contents through the sound output unit  142 . 
       FIGS. 14A and 14B  are diagrams illustrating examples of an operation of establishing a short range wireless communication network. 
     Referring to the example of  FIG. 14A , the control unit  180  of the vehicle  100  may establish a short range wireless communication network  1410  through the short range communication module  113  in a state of being connected to the mobile communication network  910  (see  FIG. 9 ) through the wearable device  200 . 
     In this case, the vehicle  100  or the wearable device  200  is operated as an access point (AP). The vehicle  100  or the wearable device  200  may serve as a gateway or a router. One or more devices  1420  and  1430  may be connected to the established short range wireless communication network  1410 . The devices  1420  and  1430  may be connected to the mobile communication network  910  through the vehicle  100  and the wearable device  200 . 
     Referring to the example of  FIG. 14B , when the short range wireless communication network is established, the control unit  180  of the vehicle  100  may display information on an establishment state of the short range wireless communication network on the display unit  141 . 
       FIG. 15  is a diagram illustrating an example of an operation of a vehicle performing identification of a passenger of the vehicle. 
     Referring to the example of  FIG. 15 , the control unit  180  of the vehicle  100  may perform identification on a passenger possessing the wearable device  200  before being paired with the wearable device  200  or being electrically connected with the wearable device  200 . 
     For example, the control unit  180  of the vehicle  100  detects biometric information about a passenger through the biometric information detecting unit  131 . The control unit  180  of the vehicle  100  may be matched with the wearable device  200  and compare first biometric information about a user of the wearable device stored in the memory  160  (see  FIG. 3 ) and second biometric information about the passenger detected through the biometric information detecting unit  131 . 
     When the first biometric information is matched with the second biometric information, the passenger is identified, and the control unit  180  of the vehicle  100  may be connected with the wearable device  200  through the short range wireless communication or electrically connected with the wearable device  200 . 
     When the first biometric information is not matched with the second biometric information, so that the passenger is not identified, the control unit  180  of the vehicle  100  is not connected with the wearable device  200  through the short range wireless communication and is not electrically connected with the wearable device  200 . 
       FIG. 15  illustrates the fingerprint scanner  131  as an example of the biometric information detecting unit  131 , but implementations are not limited thereto, and the vehicle  100  may include an iris scanner or a retina scanner and obtain iris scan information or retina scan information about a passenger. In some cases, the biometric information detecting unit  131  may include the camera  122  and obtain hand geometry information and facial recognition information about a passenger. As another example, the biometric information detecting unit  131  may include the microphone  123  to obtain voice recognition information about a passenger. 
       FIG. 16  is a diagram of an example of an operation of a vehicle when a user does not wear a wearable device. 
     Referring to the example of  FIG. 16 , when the control unit  180  of the vehicle  100  is not electrically connected with the wearable device  200  in the non-wearing state, the control unit  180  of the vehicle  100  may display a message for checking charging through the display unit  141 . Further, the control unit  180  of the vehicle  100  may output the message for checking charging through the sound output unit  142  in a form of a voice. 
     As described above, the output of the message for checking charging has an effect in that when the wearable device  200  is not connected with the control unit  180  of the vehicle  100  even though the user of the wearable device  200  releases the wearing state for the electrical connection with the vehicle  100 , the user may recognize the disconnection. 
     In some implementations, the information on the wearing state may be detected by the wearing detecting unit  241  included in the wearable device  200 . The control unit  180  of the vehicle  100  may receive the information on the detected wearing state. 
       FIGS. 17 to 20  are diagrams of examples of an operation of a vehicle in which a passenger of the vehicle possesses both a wearable device and a mobile terminal. 
     As illustrated in the example of  FIG. 17 , the control unit  180  of the vehicle  100  receives information on a wearing state of the wearable device  200  from the wearable device  200 . For example, when the user wears the wearable device  200 , the control unit  180  of the vehicle  100  receives the information on the wearing state. When the user does not wear the wearable device  200 , the control unit  180  of the vehicle  100  receives information on a non-wearing state. Here, the information on the wearing state or the non-wearing state may be received in a form of a beacon signal before the vehicle  100  is paired with the wearable device  200 . 
     After the information on the wearing state or the non-wearing state is received, the control unit  180  of the vehicle  100  displays a selection input image  1710  for selecting one of the wearable device  200  and the mobile terminal  300  to be first paired on the display unit  141 . 
     When the selection input for the mobile terminal  1720  or the wearable device  1730  is received, the control unit  180  of the vehicle  100  performs pairing with the selected device. 
     In some implementations, the pairing may also be performed according to a preset priority. In a case where it is set that the control unit  180  of the vehicle  100  is paired with the wearable device  200  in the wearing state with a top priority, when receiving the information on the wearing state, the control unit  180  of the vehicle  100  performs a pairing operation with the wearable device  1730 . In a case where it is set that the control unit  180  of the vehicle  100  is paired with the mobile terminal  300  in the non-wearing state as a top priority, when receiving the information on the non-wearing state, the control unit  180  of the vehicle  100  performs the pairing operation with the mobile terminal  300 . 
     As illustrated in the example of  FIG. 18 , when the wearable device  200  is electrically connected with the vehicle  100  in a state where the wearable device  200  is paired with the mobile terminal  300 , the control unit  280  of the wearable device  200  transmits information on an electrical connection state with the vehicle  100  to the mobile terminal  300 . 
     In this case, the mobile terminal  300  may change a notification method. 
     For example, when the user takes the wearable device in a state where the notification method of the mobile terminal  300  is set to be silent and the user recognizes the notification of the mobile terminal  300  through the wearable device  200 , the user cannot recognize the notification of the mobile terminal  300 . Accordingly, when the wearable device  200  is electrically connected with the vehicle  100  and the notification method of the mobile terminal  300  is changed from silent to a vibration or a sound, there is an effect in that the user may recognize the notification of the mobile terminal  300 . 
     As illustrated in the example of  FIG. 19 , when the wearable device  200  is electrically connected with the vehicle  100  in a state where the wearable device  200  is paired with the mobile terminal  300 , information stored in the mobile terminal  300  may be output through the wearable device  200 . For example, when a schedule or an alarm is set and stored in the mobile terminal, the schedule or the alarm  1910  may be output through the output unit  250  of the wearable device  200 . 
     As illustrated in the example of  FIG. 20 , when the wearable device  200  is electrically connected with the vehicle  100  in a state where the wearable device  200  is paired with the mobile terminal  300 , information received in the mobile terminal  300  through the mobile communication network may be output through the vehicle  100 . For example, when a call is received in the mobile terminal  300  through the mobile communication network, call reception information  2010  may be displayed through the display unit  141  of the vehicle  100  or output through the sound output unit  142 . 
     As described above, in the state where the wearable device  200  is electrically connected with the vehicle  100 , information, which the user may need to immediately recognize, is output through the vehicle  100 , and information, which the user may not need to immediately recognize, is output through the wearable device  200 , so that there is an effect in that a quantity of information recognized by the user while driving is decreased, thereby helping the user to safely drive. 
     The methods, techniques, systems, and apparatuses described herein may be implemented in digital electronic circuitry or computer hardware, for example, by executing instructions stored in tangible computer-readable storage media. 
     Apparatuses implementing these techniques may include appropriate input and output devices, a computer processor, and/or tangible computer-readable storage media storing instructions for execution by a processor. 
     A process implementing techniques disclosed herein may be performed by a processor executing instructions stored on a tangible computer-readable storage medium for performing desired functions by operating on input data and generating appropriate output. Suitable processors include, by way of example, both general and special purpose microprocessors. Suitable computer-readable storage devices for storing executable instructions include all forms of non-volatile memory, including, by way of example, semiconductor memory devices, such as Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), and flash memory devices; magnetic disks such as fixed, floppy, and removable disks; other magnetic media including tape; and optical media such as Compact Discs (CDs) or Digital Video Disks (DVDs). Any of the foregoing may be supplemented by, or incorporated in, specially designed application-specific integrated circuits (ASICs). 
     Although the operations of the disclosed techniques may be described herein as being performed in a certain order and/or in certain combinations, in some implementations, individual operations may be rearranged in a different order, combined with other operations described herein, and/or eliminated, and desired results still may be achieved. Similarly, components in the disclosed systems may be combined in a different manner and/or replaced or supplemented by other components and desired results still may be achieved.