Patent Publication Number: US-10785051-B2

Title: Mobile terminal, server, and method of operating the same

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS 
     This application is a Continuation Application of U.S. patent application Ser. No. 15/872,611 filed Jan. 16, 2018, which claims the priority benefit of Korean Patent Application 10-2017-0006910, filed Jan. 16, 2017 in the Korean Intellectual Property Office, the disclosures of which are incorporated herein by reference. 
    
    
     BACKGROUND 
     1. Field 
     The present disclosure relates to a mobile terminal, a server, and a method of operating the same. More particularly, the present disclosure relates to a mobile terminal, a server, and a method of operating the same, which provides an application service to control a plurality of home appliances. 
     2. Background 
     Existing homes appliances, such as washing machines, air-conditioners, cleaners, and the like, that are used at home or in the office, may individually perform their own functions and operations. 
     For example, a refrigerator stores food, a washing machine washes laundry, an air-conditioner controls indoor temperature, a cooking device cooks food, and the like. 
     With the development of various communication technologies, home appliances are connected to each other via network connections through wired/wireless communication. 
     As the home appliances are connected to each other over a network, data may be transmitted from one home appliance to another, or information on a home appliance may be checked in another home appliance. 
     Smart devices, such as a mobile terminal and the like, may also be connected in the network, such that a user may check and control information on the home appliances by using a smart device anytime and anywhere. 
     Such network of home appliances at home may be called a smart home. 
     Regarding the smart home technology, Korean Laid-open Patent Publication No. 10-2003-0093196 discloses a home network including a washing machine and the like. 
     The art discloses that, after a predetermined period of time upon completion of washing, the washing machine itself communicates with a user based on presence of laundry and humidity, and performs a follow-up process in response to a result of the communication, thereby preventing in the first place damage of laundry left in the washer for an extended period of time. 
     That is, upon completion of washing, the washing machine in the home network transmits information regarding the left laundry and a query message asking whether to proceed with a follow-up process, and upon receiving a response, the washing machine performs a follow-up process. 
     As disclosed in the art, the general smart home technology may provide services through a mobile terminal that may be carried and conveniently used by a user. 
     Research has been conducted on various methods to provide application services to control home appliances through a mobile terminal and to enhance user convenience. 
     Many methods are being developed to provide application services that allow for simple registration of home appliances based on a device or an account, and enable easy switching and integration of accounts by a user&#39;s selection. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       Arrangements and embodiments may be described in detail with reference to the following drawings in which like reference numerals refer to like elements and wherein: 
         FIG. 1  is a diagram illustrating a smart home system including home appliances according to an example embodiment of the present disclosure; 
         FIG. 2  is a block diagram illustrating components of a smart home and Internet of Things (IoT) system; 
         FIG. 3  is a perspective view of a mobile terminal as seen from the front side thereof according to an example embodiment of the present disclosure; 
         FIG. 4  is a schematic block diagram illustrating an internal configuration of a mobile terminal according to an example embodiment of the present disclosure; 
         FIG. 5  is a schematic block diagram illustrating an internal configuration of a server according to an example embodiment of the present disclosure; 
         FIG. 6  is a diagram illustrating an application login scenario according to an example embodiment of the present disclosure; 
         FIGS. 7 to 11  are diagrams referred to in the description of an application login process according to an example embodiment of the present disclosure; 
         FIGS. 12 to 14  are diagrams referred to in the description of a simple login according to an example embodiment of the present disclosure; and 
         FIGS. 15 to 25  are diagrams referred to in the description of a method of operating a mobile terminal and a server according to an example embodiment of the present disclosure. 
     
    
    
     DETAILED DESCRIPTION 
     Embodiments may now be described more fully with reference to the accompanying drawings, in which exemplary embodiments are shown. Embodiments may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. 
     In the drawings, for clarity of description, parts unrelated to description are omitted, and the same reference numerals may be used throughout this specification to refer to the same or very similar parts. 
     In the following description, a suffix such as “module” and “unit” may be used to refer to elements or components. Use of such a suffix herein is merely intended to facilitate description of the specification, and the suffix itself is not intended to give any special meaning or function. Thus, the terms “module” and “unit” can be used interchangeably. 
       FIG. 1  is a diagram illustrating a smart home system including home appliances according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     Referring to  FIG. 1 , a home appliance network system includes home appliances, each having a communication module to communicate with other devices or a server  70 , or to be connected to a network. 
     For example, the home appliance may be an air-conditioning device  10 , a cleaner  20 , a refrigerator  31 , a washing machine  32 , and the like, each of which has a communication module (or communication device). 
     The air-conditioning device  10  may include at least one of the following: an air conditioner  11 , an air purifiers  12  and  13 , an air humidifier  14 , and a hood  15 . 
     The cleaner  20  may be (or include) a vacuum cleaner  21 , a robot cleaner  22 , and the like. 
     The communication module included in the home appliances  10 ,  20 ,  31 , and  32  may be a WiFi communication module. However, there is no limitation on a communication method in the present disclosure. 
     The home appliances  10 ,  20 ,  31 , and  32  may include another type of communication module or a plurality of communication modules. For example, the home appliances  10 ,  20 ,  31 , and  32  may include a Near-Field Communication (NFC) module, a ZigBee communication module, a Bluetooth™ communication module, and the like. 
     The home appliances  10 ,  20 ,  31 , and  32  may be connected to the server  70  through a WiFi communication module and the like, and may support smart functions such as remote monitoring, remote control, and the like. 
     The home appliance network system according to an example embodiment may include a mobile terminal  50  such as a smart phone, a tablet PC, and the like. 
     By using the mobile terminal  50 , a user may check information regarding the home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system, and/or may control the home appliances  10 ,  20 ,  31 , and  32 . 
     The home appliance network system may include a plurality of Internet of Things (IOT) devices. Accordingly, the home appliance network system may include the home appliances  10 ,  20 ,  31 , and  32 , the mobile terminal  50 , and the IOT devices. 
     The home appliance network system may use a communication method that is not limited to a communication method for network connections. 
     For example, the home appliances  10 ,  20 ,  31 , and  32 , the mobile terminal  50 , and the IOT devices may be connected to each other via network connections through a wired/wireless router. 
     Devices included in the home appliance network system may form a mesh topology network, in which each device is connected independently via communication connections. 
     The home appliances  10 ,  20 ,  31 , and  32  may communicate with the server  70  or the mobile terminal  50  via a wired/wireless router. The home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system may communicate with the server  70  or the mobile terminal  50  via Ethernet. 
     The home appliance network system may include a gateway. 
     The home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system may be connected to each other through network connections directly or via the gateway. 
     The home appliances  10 ,  20 ,  31 , and  32  may be connected with each other through network connections directly or via the gateway to communicate with the server  70 . 
     In addition, the gateway may communicate with the server  70  or the mobile terminal  50  via Ethernet. 
     The home appliances  10 ,  20 ,  31 , and  32  may transmit a device operation state, a setting value, and the like, to the server  70  and/or the gateway. 
     A user may check information regarding the home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system, and/or may control the home appliances  10 ,  20 ,  31 , and  32 . 
     When receiving a call, the mobile terminal  50  may transmit a signal, indicating the call, to the server  70  and/or the gateway. In response to the call received by the mobile terminal  50 , the home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system may perform a specific operation or change a predetermined setting. 
     In response to a user&#39;s instruction input through the mobile terminal  50  and the like, or in response to a specific event occurring in the home appliances  10 ,  20 ,  31 , and  32  included in the home appliance network system, the server  70  and/or the gateway may transmit a signal to each of the home appliances  10 ,  20 ,  31 , and  32  to control the home appliances  10 ,  20 ,  31 , and  32 . 
     In some embodiments, the gateway may include an output unit, such as a display, an audio output unit, and the like. 
     The display and the audio output unit may be stored in the gateway, and may output an image and audio based on a received signal. 
     For example, a music file stored in the gateway may be reproduced and output by the audio output unit. 
     The display and the audio output unit may output image and audio information associated with the operation of the gateway. 
     The server  70  may store and manage information transmitted from the home appliances  10 ,  20 ,  31 , and  32 , the mobile terminal  50 , and other devices. 
     The server  70  may be a server of home appliances or a server operated by a company entrusted by a manufacturer to provide services. 
     Information regarding the home appliances  10 ,  20 ,  31 , and  32  may be transmitted to the mobile terminal  50 , and the mobile terminal  50  may display the information received from the home appliances  10 ,  20 ,  31 , and  32 . 
     The home appliances  10 ,  20 ,  31 , and  32  may receive information or an instruction from the mobile terminal  50 . The home appliances  10 ,  20 ,  31 , and  32  may transmit various types of information to the server  70 . The server  70  may transmit some or all of the information received from the home appliances  10 ,  20 ,  31 , and  32  to the mobile terminal  50 . 
     The server  70  may transmit the information received from the home appliances  10 ,  20 ,  31 , and  32  to the mobile terminal  50 , while keeping the information intact or by processing the information. 
     While  FIG. 1  illustrates an embodiment where there is a single server  70 , embodiments are not limited thereto. For example, the system may be connected with two or more servers. 
     In some embodiments, the gateway may communicate with the server  70  or the mobile terminal  50  by using a first communication scheme; and may communicate with the IoT devices by using a second communication scheme. 
     For example, the first communication scheme may be a WiFi communication scheme, while the second communication scheme may be a ZigBee communication scheme. 
     The IoT devices may be connected to the server  70  via the gateway, and may be monitored and controlled by a user&#39;s mobile terminal  50  and the like. 
       FIG. 2  is a block diagram illustrating components of a smart home and Internet of Things (IoT) system. 
     Referring to  FIG. 2 , the smart home and Internet of Things (IoT) system may include a smart home appliance  110  that includes a communication module to communicate with other devices or a server, and to be connected to a network. 
     For example, the smart home appliance  110  may be a refrigerator  111 , a washing machine  112 , a robot cleaner  113 , an air-conditioning device, an air purifier, and the like, each of which has one or more communication modules. 
     The communication module included in the smart home appliance  110  may be a WiFi communication module. 
     Alternatively, the smart home appliance  110  may include another type of communication module or a plurality of communication modules. For example, the smart home appliance  100  may be a Near-Field Communication (NFC) module, a ZigBee communication module, a Bluetooth™ communication module, and the like. 
     The smart home appliance  10  may be connected to the server by using a WiFi communication module and the like, and may support smart functions such as remote monitoring, remote control, and the like. 
     The smart home and Internet of Things (IoT) system may include a plurality of IoT devices  120  and  140 , a gateway  130 , and the like. 
     The plurality of IoT devices  120  and  140  may be divided into the IoT device  120  that includes a WiFi communication module to be directly connected to the Internet and to the server; and the IoT accessory  140  that may be connected to the Internet and to the server via the gateway  130 . 
     The IoT device  120  may be an IP camera  121 , a thermostat  122 , and the like, and may be connected to the server without passing through the gateway  130 . 
     The IoT accessory  140  may be a smart lighting device  141 , a smart plug  142 , a dust sensor  143 , a motion sensor  144 , a multipurpose sensor  145 , and the like. 
     The IoT accessory  140  may include a communication module to communicate with at least the gateway  130 . For example, the IoT accessory  140  may include a ZigBee communication module. 
     The gateway  130  may communicate with the server or the mobile terminal by using a first communication scheme, and may communicate with the IoT accessory  140  by using a second communication scheme. 
     For example, the first communication scheme may be a WiFi communication scheme, while the second communication scheme may be a ZigBee communication scheme. 
     The IoT accessory  140  may be connected to the server via the gateway  130 , and may be monitored and controlled by a user&#39;s mobile terminal and the like. 
     A user may turn on and off the smart lighting device  141  at a desired time by using a mobile terminal, and may check usage information showing the amount of power usage of the smart plug  142  and the like. 
     The user may check, on the mobile terminal, sensing data measured by the dust sensor  143 , the motion sensor  144 , the multipurpose sensor  145 , and the like. 
     The multipurpose sensor  145  may be attached to a home appliance having no communication module. Accordingly, the home appliance, although having no communication module, may use various smart functions. 
     The home appliance, to which the multipurpose sensor  145  may be attached, is not limited, and may be any one or more of the following: a washing machine, a washing device, an air conditioner, a robot cleaner, and the like. Examples of the washing device may include a washing machine for washing clothes and the like, dryer for drying clothes and the like, a dish washer for washing the dishes. 
     The multipurpose sensor  145  may be used to add functions to a specific home appliance. 
     Alternatively, the multipurpose sensor  145  may be used to transmit an instruction associated with an operation to a specific home appliance. 
     The multipurpose sensor  145  may be used to detect surrounding conditions of the multipurpose sensor  145  regardless of the operation of the home appliance. 
     For example, the multipurpose sensor  145  may be attached to the home appliance, an indoor wall, a window, a door, or the like. Additionally, the IoT accessory  142 , such as the smart lighting device  141 , the smart plug  142 , the dust sensor  143 , the motion sensor  144 , the multipurpose sensor  145 , and the like, may further include a light emitting device to display state information. The light emitting device may include one or more light sources. 
     The light emitting device may display various types of information including a battery state, communication connection with an external device (server, mobile terminal, etc.), an error state, and the like. The color of light emitted by the light emitting device may vary depending on the battery state, the communication connection with the external device (server, mobile terminal, etc.), the error state, and the like. 
     The light emitting device may output light from a light source emitting a plurality of colors of light, and a light source emitting light of different colors corresponding to each condition. 
     For example, in the case where the IoT accessory  40  operates in a normal state, the light emitting device outputs blue light, and when an abnormal state occurs, the light emitting device outputs red light. Alternatively, before operating a specific operation, the light emitting device may output yellow light for a predetermined period of time so that a user may intuitively recognize that a specific operation is about to be performed. 
     In  FIG. 2 , based on presence of a communication module such as a WiFi communication module that may be connected to a server, the IoT devices  120  and  140  are divided into the IoT device  120  and the IoT accessory  140 , although embodiments are not limited thereto. 
     For example, with reference to  FIG. 1 , the devices, illustrated as the IoT device  120  and the IoT accessory  140 , may include other communication modules according to specifications. 
     A single device may perform multiple functions. 
     For example, a smart hub gateway  125  is a gateway that may communicate with the IoT accessory  140 . Accordingly, details regarding the gateway  130  may also be applied to the smart hub gateway  125 . 
     Additionally, the smart hub gateway  125  has a sensor function, a controlling function, and the like, such that the smart hub gateway  125  may serve as the IoT device  120 . 
     In some embodiments, the smart hub gateway  125  may include an output unit such as a display, an audio output unit, and the like. 
     The display and the audio output unit may be stored in the smart hub gateway  125 , and may output an image and audio based on a received signal. 
     For example, a music file stored in the smart hub gateway  125  may be reproduced and output by the audio output unit. 
     Additionally, the display and the audio output unit may output image and audio information associated with the operation of the smart hub gateway  125 . 
     By dividing the smart home and IoT system, the IoT devices  120  and  140  and the gateway  130  may be referred to as an IoT system, and the IoT devices  120  and  140 , the gateway  130 , and the smart home appliance  110  may be referred to as a smart home system. 
     The smart home and IoT system may include the smart hub gateway  125  instead of the gateway  130 , or may include both the smart hub gateway  125  and the gateway  130 . 
       FIG. 3  is a perspective view of a mobile terminal as seen from the front side thereof according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     Referring to  FIG. 3 , the mobile terminal  50  has a bar-type terminal body. However, the embodiments are not limited thereto, but may be applicable to various structures of terminals such as watch-type, clip-type, and glasses-type, or such as folder type, flip type, slide type, swing type, swivel type, or the like, in which two or more bodies may be combined with each other in a relatively movable manner. Discussion herein will often relate to a particular type of mobile terminal. However, such teachings with regard to a particular type of mobile terminal will be generally applied to other types of mobile terminals as well. 
     A terminal body may be understood as a concept that refers to the mobile terminal  50  viewed as at least one assembly. 
     The mobile terminal  50  may include a case  400  that forms an outer appearance thereof. As illustrated in  FIG. 3 , the mobile terminal  50  includes a front case  401  and a rear case  402 . Various electronic components may be mounted in a space formed between the front case  401  and the rear case  402 . At least one intermediate case may be additionally disposed between the front case  401  and the rear case  402 . 
     The display  451  is disposed on a front portion of the terminal body to output information. As illustrated in  FIG. 3 , a window  451   a  of the display  451  is mounted at the front case  401  to form the front portion of the terminal body along with the front case  401 . 
     Electronic components may also be mounted at the rear case  402 . Examples of the electronic component that may be mounted at the rear case  402  include a detachable battery, an identification module, a memory card, and the like. A rear cover  403 , which covers the mounted electronic component, may be detachably coupled to the rear case  402 . Accordingly, when the rear cover  403  is detached from the rear case  402 , the electronic components mounted at the rear case  402  are exposed to the outside. 
     As illustrated in  FIG. 3 , once the rear cover  403  is coupled to the rear case  402 , a side surface of the rear case  402  may be partially exposed. In some cases, upon the coupling, the rear case  402  may be completely covered by the rear cover  403 . The rear cover  403  may include an opening to externally expose a camera (not shown) or an audio output unit (not shown). 
     The cases  401 ,  402 , and  403  may be formed by injection-molding synthetic resin, or may be made of metal, such as stainless steel (STS), aluminum (Al), titanium (Ti), or the like. 
     As an alternative to the example where the plurality of cases form an inner space for accommodating components, the mobile terminal  50  may be configured such that a single case forms the inner space. In this example, the mobile terminal  50  may be formed to have a uni-body made of synthetic resin or metal extending from a side surface to a rear surface. 
     Additionally, the mobile terminal  50  may include a waterproof unit for preventing water from infiltrating into the terminal body. For example, the waterproof unit may include a waterproof member between the window  451   a  and the front case  401 , between the front case  401  and the rear case  402 , or between the rear case  402  and the rear cover  403 , so as to seal an inner space when the cases are coupled. 
     The mobile terminal  50  may be provided with the display  451 , a first and second sound output units  452   a  (not shown), a proximity sensor  441 , an illumination sensor  442 , a light output unit  454 , the first and second cameras  421   a  (not shown), a first and second manipulation units  423   a  (not shown), a microphone  422 , an interface unit  460 , and the like. 
     As shown in  FIG. 3 , description may be made with reference to the mobile terminal  50 , in which the display  451 , the first sound output unit  452   a,  the proximity sensor  441 , the illumination sensor  442 , the light output unit  454 , the first camera  421   a,  and the first manipulation unit  423   a  are disposed on the front surface of the mobile terminal  50 ; the second manipulation unit (not shown), the microphone  422 , and the interface unit  460  are disposed on the side surface thereof; and the second sound output unit (not shown) and the second camera (not shown) are disposed on the rear surface thereof. 
     However, configuration of the components is not limited to the arrangement, and any of the components may be excluded or replaced if necessary, or may be disposed on another surface. 
     The display  451  displays (output) information processed in the mobile terminal  50 . For example, the display  451  may display execution screen information of an application program executed at the mobile terminal  50 , or User Interface (UI) and Graphic User Interface (GUI) information in response to the execution screen information. 
     The display  451  may include at least one or more of the following: a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT-LCD), an organic light emitting diode (OLED), a flexible display, a 3-dimensional (3D) display, and an e-ink display. 
     The display  451  may be implemented using two or more display devices depending on an embodiment of the mobile terminal  50 . In this example, a plurality of displays may be arranged on one side, where the displays may be spaced apart from each other or may be integrally disposed; or each of the displays may be disposed on different surfaces. 
     The display  451  may also include a touch sensor that senses a touch input to the display  451 , so as to receive a control command by a touch operation. In this manner, when a touch is input to the display  451 , the touch sensor senses the touch, and based on the touch input, the controller  140  generates a control command corresponding to the touch. The content input by the touch operation may be a text or numerical value, or a menu item that can be indicated or designated in various modes. 
     The touch sensor may be made of a film having a touch pattern, and may be disposed between the window  451   a  and a display (not shown) arranged on a rear surface of the window  451   a;  or the touch sensor may be a metal wire patterned directly on the rear surface of the window  451   a.  Alternatively, the touch sensor may be integrally formed with the display. For example, the touch sensor may be disposed on a substrate of the display or disposed in the display. 
     As described above, the display  451  may form a touch screen together with the touch sensor, in which case, the touch screen may serve as a user input unit. In some examples, the touch screen may replace at least some of the functions of the first manipulation unit  423   a.    
     The first audio output unit  452   a  may be implemented as a receiver that delivers audio during a call to a user&#39;s ear, and the second audio output unit may be implemented as a loud speaker to output various alarm sounds or multimedia audio reproduction sounds, and the like. 
     The window  451   a  of the display  451  may include a sound hole to allow audio, generated by the first audio output unit  452   a,  to pass. However, embodiments are not limited thereto, and the audio may be released along an assembly gap between structures (for example, a gap between the window  451   a  and the front case  401 ). In this example, a hole, which is formed independently to output audio sounds, may not be seen or is otherwise hidden in terms of appearance, such that the appearance of the mobile terminal  50  may be simplified. 
     The light output unit  454  is configured to output light for notifying the occurrence of an event. Examples of the event include a message reception, a call signal reception, a missed call, an alarm, a schedule notice, an email reception, information reception through an application, and the like. Upon sensing that the event is checked by a user, the controller  140  may control the light output unit  454  to terminate light output. 
     The first camera  421   a  may process image frames of still or moving images obtained by an image sensor in an image capture mode or video call mode. The processed image frames may be displayed on the display  451 , and may be stored in the memory. 
     The first and second manipulation units  423   a  (not shown) are an example of the user input unit  430 , which is operated by a user to provide input of instructions to control the mobile terminal  50 . The first and second manipulation units  423   a  may also be commonly referred to as a manipulating portion. The first and second manipulation units  423   a  may employ any tactile method that allows the user to perform manipulation such as touch, push, scroll, or the like. The first and second manipulation units  423   a  may also employ any non-tactile method that allows the user to perform manipulation such as proximity touch, hovering, or the like. 
     Although  FIG. 3  illustrates the first manipulation unit  423   a  as a touch key, embodiments are not limited thereto. For example, the first manipulation unit  423   a  may be a mechanical key, a push key, a touch key, or combinations thereof. Inputs received by the first and second manipulation units  423   a  may be set in various manners. For example, the first manipulation unit  423   a  may be used to provide an input of instructions, such as a menu, home key, cancel, search, or the like, and the second manipulation unit may be used to provide an input of instructions to control a volume level being output from the first or second audio output units  452   a  (not shown), or to switch to a touch recognition mode of the display  451 , or the like. 
     As another example of the user input unit, a rear input unit (not shown) may be positioned on the rear surface of the terminal body. The rear input unit may be operated by a user to provide input to the mobile terminal  50 . The input details may be set in various manners. For example, the rear input unit may be used by the user to provide an input for power on/off, start, end, scroll, control volume level being output from the first or second audio output units  452   a  (not shown), switch to a touch recognition mode of the display  451 , and the like. The rear input unit may be configured to allow touch input, a push input, or combinations thereof. 
     The rear input unit may be disposed to overlap the display  451  on the front side in a thickness direction of the terminal body. For example, the rear input unit may be disposed on an upper end portion of the rear side of the terminal body, so that a user may easily operate the rear input unit with a forefinger while holding the terminal body in one hand. However, embodiments are not necessarily limited thereto, and the position of the rear input unit may be changed. 
     As described above, in the example where an input unit is provided on the rear surface of the terminal body, a new user interface using the input unit may be implemented. Further, the above-described touch screen or rear input unit may perform at least some of the functions of the first manipulation unit  423   a  provided on the front surface of the terminal body, such that in the case where the first manipulation unit  423   a  is not provided on the front surface of the terminal body, the display  451  may have a larger screen. 
     The mobile terminal  50  may have a finger scan sensor to recognize a user&#39;s fingerprint, and the controller  480  may use fingerprint information, sensed by the finger scan sensor, as part of an authentication procedure. The finger scan sensor may also be mounted in the display  451  or in the user input unit. 
     The microphone  422  is configured to receive input of a user&#39;s voice, other sounds, and the like. The microphone  422  may be provided at a plurality of positions to receive input of stereo sounds. 
     The interface unit  460  (or interface) may serve as a path to allow the mobile terminal  50  to interface with external devices. For example, the interface unit  460  may include one or more of a connection terminal for connection to another device (e.g., an earphone, an external speaker, etc.), a port for near field communication (e.g., an Infrared Data Association (IrDA) Port, a Bluetooth port, a wireless LAN port, etc.), or a power supply terminal for supplying power to the mobile terminal  50 . The interface unit  460  may be implemented in the form of a socket for accommodating an external card, such as Subscriber Identification Module (SIM), User Identify Module (UIM), or a memory card for information storage. 
     The second camera may be disposed on the rear surface of the terminal body, in which case, the second camera has an image capturing direction substantially opposite to the image capturing direction of the first camera unit  421   a  (or first camera). 
     The second camera may include a plurality of lenses arranged along at least one line. The plurality lenses may be arranged in a matrix. The cameras may be referred to as an “array camera.” In the example where the second camera is implemented as an array camera, the camera may capture images in various manners using the plurality of lenses, in which the captured images may be of better qualities. 
     A flash may be disposed adjacent to the second camera. When the second camera captures a subject, the flash emits light toward the subject. 
     The second audio output unit may be additionally disposed at the terminal body. The second audio output unit may implement stereophonic sound functions in conjunction with the first audio output unit  452   a,  and may also be used to implement a speaker phone mode during a call. 
     At least one antenna for wireless communication may be provided at the terminal body. The antenna may be mounted in the terminal body or may be provided at the case. For example, an antenna, which is included as part of a broadcast reception module  411  ( FIG. 4 ), may be retractable into the terminal body. Alternatively, an antenna may be formed of a film type to be attached to the inner side of a rear cover  403 , or a case including a conductive material may function as an antenna. 
     A power supply  490  ( FIG. 4 ) to supply power to the mobile terminal  50  may be provided at the terminal body. The power supply  490  may include a battery (not shown), which is mounted in the terminal body or detachably coupled to an outside of the terminal body. 
     The battery may be supplied with power via a power source cable connected to the interface unit  460 . Further, the battery may be recharged in a wireless manner using a wireless charger. Wireless charging may be performed by magnetic induction or electromagnetic resonance. 
     In the drawing, the rear cover  403  is coupled to the rear case  402  to cover the battery  191 , thereby preventing separating of the battery  191  and protecting the battery  191  from an external impact or foreign material. In the case where the battery  191  is detachable from the terminal body, the rear cover  403  may be detachably coupled to the rear case  402 . 
     An accessory for protecting an outer appearance of the mobile terminal  50 , or for assisting or extending functions of the mobile terminal  50 , may be further provided for the mobile terminal  50 . As an example of the accessory, a cover or pouch may be used to cover or accommodate at least one surface of the mobile terminal  50 . The cover or pouch may cooperate with the display  451  to extend functions of the mobile terminal  50 . As another example of the accessory, a touch pen may be used to assist or extend a touch input to a touch screen. 
     Besides a mobile terminal which is used while being held in a user&#39;s hand, the mobile terminal may be implemented as a wearable device that can be worn on the human body. Examples of the wearable device include a smart watch, a smart glass, a head mounted display (HMD), and the like. Hereinafter, examples of the mobile terminal, of which use is extended to the wearable device, will be described below. 
     The wearable device may exchange data with (or cooperate with) another mobile terminal  50 . A short-range communication module  417  may detect (or identify) a wearable device which is located nearby to communicate with the mobile terminal  50 . When the detected wearable device is a device which has been authenticated to communicate with the mobile terminal  50 , the controller  480  may transmit at least a portion of data, processed in the mobile terminal  50 , to the wearable device via the short-range communication module  417 . Accordingly, a user may use the data processed in the mobile terminal  50  by using the wearable device. For example, when a call is received in the mobile terminal  50 , the user may answer the call by using the wearable device, and when a message is received in the mobile terminal  50 , the user may check the received message by using the wearable device. 
       FIG. 4  is a schematic block diagram illustrating an internal configuration of a mobile terminal according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     Referring to  FIG. 4 , the mobile terminal  50  includes a radio communication unit  410 , an audio/video (A/V) unit  420 , a user input unit  430 , a sensing unit  440 , an output unit  450 , a memory  460 , an interface unit  470 , a controller  480 , and a power supply unit  490 . 
     In the exemplary embodiment, the mobile terminal  50  includes a display  451 , a radio communication unit  510 , and the controller  480 , which is configured to, in response to an input to execute an application associated with a home appliance, control a screen of the application associated with the home appliance to be displayed on the display  451 , in response to a simple login item on the screen of the application being selected, create a simple login ID account based on device information of the mobile terminal  50 , and control the radio communication unit  410  to transmit data including information on the created simple login ID account to the server  70 , and in response to an account login item on the screen of the application being selected, control the radio communication unit  410  to transmit data including user account information to the server  70 . 
     The radio communication unit  410  may include a broadcast reception module  411 , a mobile communication module  413 , a wireless Internet module  415 , a short-range communication module  417 , a global positioning system (GPS)  419 , and the like. 
     The broadcast reception module  411  receives at least one of a broadcast signal and broadcast related information from an external broadcast management server through a broadcast channel. The broadcast channel may include a satellite channel, a terrestrial channel, and the like. 
     The broadcast signal and/or broadcast related information received by the broadcast reception module  411  may be stored in the memory  460 . 
     The mobile communication module  413  transmits and receives a radio signal to and from at least one of a base station, an external terminal, and a server on a mobile communication network. Here, the radio signal may include various types of data based on transmission and reception of a voice call signal, a video call signal, or text/multimedia messages. 
     The wireless Internet module  415  may be referred to a module for wireless Internet access, and may be included inside or outside of the mobile terminal  50 . For example, the wireless Internet module  415  may perform WiFi based wireless communication or WiFi Direct based wireless communication. 
     The short-range communication module  417  may be referred to a module for short-range communication. The short-range communication technology may use at least one of Bluetooth, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee, Near Field Communication (NFC), Wireless-Fidelity (Wi-Fi), Wi-Fi Direct, Wireless USB (Wireless Universal Serial Bus), and the like. 
     Via wireless area networks, the short-range communication module  417  supports wireless communications between the mobile terminal  50  and a wireless communication system, communications between the mobile terminal  50  and another mobile terminal  50 , or communications between the mobile terminal and a network where an external server is located. One example of the wireless area networks is a wireless personal area networks. 
     The GPS module or location information module  419  receives positional information from a plurality of GPS satellites. 
     The radio communication unit  410  may exchange data with the server  70  by using one or more communication modules. 
     The radio communication unit  410  may include an antenna  405  for wireless communication, and in addition to an antenna for phone communication, the radio communication unit  410  may include an antenna for receiving a broadcast signal. 
     The A/V input unit  420  may be used to input an audio signal or a video signal, and may include a camera  121 , a microphone  123 , and the like. 
     The user input unit  430  generates key input data, which is input by a user to control the operation of a terminal. To this end, the user input unit  430  may include a key pad, a dome switch, a touch pad (static pressure/electrostatic), and the like. Particularly, in the case where a touchpad and the display  180  are layered, the touchpad and the display  180 , which are layered, may be referred to as a touchscreen. 
     The sensing unit  440  detects a current state of the mobile terminal  50 , the current state including an opening or closing state of the mobile terminal  50 , a position of the mobile terminal  50 , and information on whether a user contacts the mobile terminal  50 , and the like, to generate a sensing signal to control an operation of the mobile terminal  50 . 
     The sensing unit  440  may include a sensor  441 , a pressure sensor  443 , a motion sensor  445 , and the like. The motion sensor  445  may detect a movement or a position of the mobile terminal  50  by using an accelerometer, a gyro sensor, a G-sensor (Gravity sensor), or the like. Particularly, the gyro sensor is a sensor that measures an angular velocity, and may detect a direction which has been rotated with respect to a reference direction (angle). 
     The output unit  450  includes the display  451 , an audio output module  453 , a haptic module  457 , and the like. 
     The display  451  displays and outputs information processed in the mobile terminal  50 . 
     In the case where the display  451  and a touchpad are layered to form a touchscreen, the display  451  may be used not only as an output device but also as an input device, via which a user may input information by a user&#39;s touch action. 
     The audio output module  453  outputs audio data received from the radio communication unit  410  or stored in the memory  460 . Examples of the audio output module  453  include a speaker, a buzzer, and the like. 
     The alarm unit  455  outputs a signal to notify the occurrence of an event of the mobile terminal  50 . For example, the alarm unit  455  may output the signal in the form of a vibration. 
     The haptic module  457  generates various tactile effects felt by a user. A typical example of the tactile effects generated by the haptic module  457  is vibration. 
     The memory  460  may store software programs for processing and controlling the controller  480 , or may temporarily store data (for example, a phonebook, messages, still images, videos, etc.) which are input or output. 
     The interface unit  470  performs a function of interfacing with all the external devices connected to the mobile terminal  50 . The interface unit  470  may receive data or power from such external device and may transmit the received data or power to each component in the mobile terminal  50 , or may allow data in the mobile terminal  50  to be transmitted to the external device. 
     The controller  480  generally controls the operation of each component, and controls the overall operation of the mobile terminal  50 . For example, the controller  480  may control and process an operation associated with a voice call, data communication, a video call, and the like. In addition, the controller  480  may further include a multimedia reproduction module  481  for reproducing multimedia contents. The multimedia reproduction module  481  may be provided as hardware in the controller  480  or may be provided as software separately from the controller  480 . 
     The power supply  490  receives external and internal power by the control of the controller  480  and supplies power required for the operation of each component. 
     The block diagram of the mobile terminal  50  illustrated in  FIG. 4  is only illustrative. Each component of the block diagram may be integrated, added, or omitted according to the specification of the mobile terminal  50  to be actually implemented. 
     That is, two or more components may be combined into a single component, or a single component may be divided into two or more components as needed. In addition, the function performed by each block is intended for description of the present embodiment, and the detailed operation or device thereof does not limit the scope of the present invention. 
       FIG. 5  is a schematic block diagram illustrating an internal configuration of a server according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     Referring to  FIG. 5 , the server  70  includes a communication module  520 , a storage unit  530 , and a processor  510 . 
     The server  70  includes: the communication module  520  configured to exchange data with the mobile terminal  50 ; the storage unit  530  configured to store data to provide an application service associated with a home appliance; and the processor  510  configured to control the communication module  520  to perform a login operation based on data, including simple login ID information received from the mobile terminal  50 , or based on user account information, and to transmit a control signal, which is received from the mobile terminal  50 , and based on which a home appliance is controlled, to the home appliance to be controlled. 
     The communication module  520  may receive, from the mobile terminal, home appliance, gateway, and the like, various types of information regarding a home appliance network system. The communication module  520  may transmit result information, corresponding to the received information, to the mobile terminal, home appliance, gateway, and the like. 
     The communication module  520  may include one or more communication modules of an Internet module, a mobile communication module, and the like. 
     The communication module  520  may exchange data with the mobile terminal by using one or more communication modules. 
     The storage unit  530  stores the received information regarding the home appliance network system, and may include data to generate result information corresponding to the information regarding the home appliance network system. 
     For example, in the example where the information regarding the home appliance network system is product information of a mobile terminal or a home appliance, the storage unit  530  may store the received product information for registration of the home appliance. 
     In the example where the information regarding the home appliance network system is operation state information or setting value information of a mobile terminal or a home appliance, the storage unit  530  may store and manage the operation state information or the setting value information of the mobile terminal or the home appliance for each device. 
     The processor  510  may control the overall operation of the server  70 . 
     Upon receiving the information regarding the home appliance network system from the mobile terminal, the processor  510  may control result information to be generated corresponding to the received information regarding the home appliance network system. The processor  510  may control the generated result information to be transmitted to the mobile terminal. 
     The server  70  may be a server operated by a manufacturer of a home appliance or IoT device, or may be a server operated by an operator of an application store. 
       FIG. 6  is a diagram illustrating an application login scenario according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     In the example where an application associated with a home appliance is selected from items displayed on a screen of the display  451  (of the mobile terminal  50 ), the application associated with the home appliance is executed, and a screen of the application associated with the home appliance may be displayed on the display  451  in S 610 . 
     In response to an input to execute the application associated with the home appliance, the controller  480  (of the mobile terminal  50 ) may control the screen of the application associated with the home appliance to be displayed on the display  451 . 
     For example, the screen of the application associated with the home appliance, which is displayed in response to the input to execute the application, may be an intro screen. 
     The screen of the application associated with the home appliance may be a login screen including a plurality of login items. 
     A login screen, a loading screen for executing an application, a welcome screen, or a set of successive screens displayed from the time after the application is executed to the time until the login screen is displayed, may be referred to as the intro screen. 
     The login screen may include: a simple login item for login using a simple login ID account based on device information of the mobile terminal  50 ; and an account login item for login using a user account created corresponding to a user. 
     In the example where an automatic login of a user account is set in S 620  when an application is executed, the controller  480  performs the automatic login to complete a login operation, and may control the display  451  to display a home screen in S 650 . 
     By contrast, in the example where the automatic login of a user account is not set in S 620  when an application is executed, the controller  480  may determine whether a simple login account is subscribed in S 630 . 
     The simple login has no membership account, which requires registration of an ID and a password, and thus is different from a general login. 
     Accordingly, the simple login operation may refer to a process from the time when a simple login ID account, created based on device information of the mobile terminal, and a user session are issued to the time when an application is prepared for use. Further, the completion of the simple login operation may refer to completion of preparing the application for use. 
     Upon completing the simple login process, the home screen of the application may be displayed on the display  451 . 
     In some embodiments, once the simple login account is subscribed through the mobile terminal  50 , the simple login operation may be performed immediately without the need for a user to select the simple login item or without the need to display a login screen. 
     In this example, the controller  480  (of the mobile terminal  50 ) may control a pop-up, which guides registration of a user account to use an account login service, to be displayed on the display  451  in S 641 . 
     The display of the pop-up may end automatically after lapse of a predetermined period of time, or may be ended by a user&#39;s operation. 
     The controller may perform the simple login operation to complete the login, and may control a home screen to be displayed on the display  451 . 
     In the example where a user selects the simple login item displayed on a login screen in S 642 , the controller  480  may control a screen of a terms of use agreement to be displayed on the display  451  in S 643 . 
     The simple login does not require an ID, password, and other personal information to be input by a user, but minimum information may be required for transmission of device information and for future registration and use of home appliances. Accordingly, as minimum terms of agreement may be required for providing a service, there is a need for a user&#39;s agreement to the terms of use. 
     Once the user agrees to the terms of use, the controller  480  performs a simple login operation and completes the login process without requiring any input from the user, and the controller  480  may control the home screen to be displayed on the display  451  in S 650 . 
     In this example, the controller  480  may create a simple login ID account based on device information of the mobile terminal, and may transmit data (including information on the created simple login ID account) to the server  70 . 
     Further, upon receiving an account and user session, corresponding to a simple login ID account issued by the server  70 , through the radio communication unit  410 , the controller  480  my control the home screen to be displayed on the display  451  in S 650 . 
     The account, corresponding to the simple login ID account issued by the server  70 , may be the same account as the simple login ID account received by the server  70  from the mobile terminal  50 , or may be a new ID account issued corresponding to the simple login ID account received by the server  70  from the mobile terminal  50 . 
     In the example where a user selects the account login item displayed on a login screen in S 644 , the controller  480  may control an account login input screen to be displayed on the display  451  in S 645 . 
     Once a user inputs an ID and a password (PW) on the account login input screen, the controller  480  may transmit data, including information on the input user account, to the server  70  for login of the user account. 
     In the example where an automatic login of a user account is set, the controller  480  may transmit data (including information on a registered user account) to the server  70  according to execution of an application, so that the user account may be logged in. 
     Upon completing the login process, the controller  480  may control the home screen to be displayed on the display  451 . 
       FIGS. 7 to 11  are diagrams referred to in the description of an application login process according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
       FIG. 7  is a diagram illustrating an application screen, and more specifically a login screen  700  that includes an account login item  710  and a simple login item  720 . 
     Referring to  FIG. 7 , the login screen  710  may include a welcome message, such as “Welcome to SmartThinQ. Experience your smart home life”, so as to welcome execution of a user&#39;s application or use of service, and the screen may also be referred to as a welcome screen. 
     The login screen  710  may also include a country and language setting item  701 . A user may check a current setting in the country and language setting item  701 , and may change the setting by selecting the country and language setting item  701 . 
     The login screen  710  may include a look-around item  730 , in which a service provided by an application may be identified, or help and video guide may be provided. 
     Once the simple login item  720  (included in the login screen  700 ) is selected, the controller  480  may create a simple login ID account based on device information of the mobile terminal  50 , and may control data, including information on the created simple login ID account, to be transmitted to the server  70 . 
     Once a user selects the account login item  710  by clicking on a tab, the controller  480  may control switching (or changing) to an account login screen  800 , on which the user may input user account information including an ID and a password, as shown in  FIG. 8 . 
     In this example, once the user inputs the user account information on the account login screen  800 , the controller  480  may control the radio communication unit  410  to transmit data, including the user account information, to the server  70 . 
     Alternatively in the case where a login process is performed by recognizing a user using a user recognition method (such as fingerprint recognition, iris recognition, or the like) when the user selects the account login item  710 , the controller  480  may control the radio communication unit  410  to transmit data, including the user account information, to the server  70  without switching (or changing) to the account login screen  800 . 
     Referring to  FIG. 8 , the account login screen  800  may include an ID/password input window  810 , a login item  820 , other account related menu item  830 , and the like. 
     After inputting an ID/password on the ID/password screen  810 , the user may select the login item  820  for login of an account. 
       FIG. 9  illustrates a home screen displayed on the display  451  after completion of the user login, in which (a) of  FIG. 9  illustrates a home screen  910  displayed when there are registered devices, while (b) of  FIG. 9  illustrates a home screen  920  displayed when there is no registered device. 
     Referring to (a) of  FIG. 9 , the home screen  910  includes information  911 ,  912 ,  913 , and  914  regarding registered devices. The registered devices may be home appliances, IoT devices, gateways, and the like, which are registered by a user to the account. 
     The information  911 ,  912 ,  913 , and  914  regarding registered devices may include names of the devices, current state information, operation mode information, and the like. 
     Referring to (b) of  FIG. 9 , upon completion of the account login, when there is no device registered to the account, a user is informed that there is no registered device, and the home screen  920  may be displayed, which includes a device registration item  921  for registering a specific device. 
     In the example where the user selects the simple login item  720  displayed on the login screen  700 , the controller  480  may control a screen of terms of use agreement to be displayed on the display  451 . 
       FIG. 10  illustrates an example of a screen  1000  of terms of service use agreement. 
     The simple login does not require an ID, password, and/or other personal information to be input by a user, but minimum information may be required for transmission of device information and for future registration and use of home appliances. Accordingly, as minimum terms of agreement may be required for providing a service, there may be a need for a user&#39;s agreement to the terms of use. 
     Once the user agrees to the terms of use, the controller  480  performs a simple login operation and completes the login process without requiring any input from the user, and may control the home screens  910  and  920  to be displayed on the display  451 . 
     The home screen shown in  FIG. 9  may be applied to both the account login using a user account and the simple login using device information of the mobile terminal. 
     In the example of the account login, however, there may be a difference in that after login of the account is performed on a device other than the mobile terminal, information on the registered device is further provided. 
     Referring to  FIG. 11 , in the example where a simple login operation is performed as the simple login item  720  is selected, the controller  480  may display a pop-up  1100  that guides registration of a user account. 
     The pop-up  1100  may include a close item  1110  to close the pop-up  1100 , and a new account creation item  1120  to create a new user account. 
     A user may select the close item  1110  to use a simple login service, or may select the new account creation item  1120  to create a user account. The new account creation item  1120  may be an account switching button. 
     When the user selects the close item  1110 , the application home screens  910  and  920  are displayed on the display  451 , and when the user selects the new account creation item  1120 , the screen is switched (or changed) to a screen for creating an account. 
     Once the account switching button  1120  in the pop-up  1110  is selected, the controller  480  displays a message indicating account switching, and performs switching to an account login screen. When a user has no user account, the screen for the account login may be the screen for creating a new account. 
     The pop-up  1100  may further include an item  1130  for not displaying the pop-up  1000  for a predetermined period of time. 
       FIGS. 12 to 14  are diagrams referred to in the description of a simple login according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
       FIG. 12  is a structure diagram illustrating use of service based on a simple login ID (UUID). 
     Referring to  FIG. 12 , a user may execute an application on the mobile terminal  50 , and may agree to the terms of use for a simple login service. 
     Accordingly, by using device information of the mobile terminal  50 , the controller  480  may create the simple login ID (UUID), which is a unique identifier generated (or provided) by selecting a random string of characters. 
     The controller  480  may transmit the created simple login ID (UUID) to the server  70 , and the server  70  may use the simple login ID (UUID) as it is, or may create a new account corresponding to the simple login ID (UUID). 
     The server  70  may manage mapping of the simple login ID (UUID) to an identifier of the registered IoT device and the home appliance  1200 . 
     Moreover, the server  70  may control the IoT device and the home appliance  1200  by using a session issued based on the simple login ID (UUID). 
       FIG. 13  illustrates a table in which a service using the simple login ID is compared with a service using a user account (LG account). 
     Referring to  FIG. 13 , a user of the simple login ID (UUID) is a user of an account automatically issued by a system based on device information of the mobile terminal  50 , the user logging into a service without subscription of an account and login of an ID and password. Users of the simple login ID may be classified for each mobile terminal. 
     A User account member may create a user account by signing up for a membership and the like, the user logging into a service with the created user account. Users of the user account may be classified for each user account. 
     The simple login ID (UUID) and the user account may be the same level of accounts used for a service, and both accounts may be used for one service, but may not be used at the same time. That is, the simple login ID (UUID) and the user account may be used independently from each other. 
     Referring to  FIG. 13 , the simple login ID (UUID) may be used for a service of controlling a home appliance and the like without membership, in which personal information is not collected for the purpose of account creation, thereby easing concern about collection of personal information such as an email, name, date of birth, and the like. 
     The simple login ID (UUID) service has no membership account, such that there is no general login/logout process. 
     The simple login ID (UUID) service may be cancelled when a user opts out of the service, and the registered home appliance is disconnected. 
       FIG. 14  illustrates an example of creating a simple login ID (UUID). 
     Referring to  FIG. 14 , a user executes an application using the mobile terminal  50  in S 1410 , and agrees to the terms of use in S 1420 . 
     The controller  480  may create the simple login ID (UUID) based on device information of the mobile terminal  50  in S 1430 . The device information is at least one of the following: a manufacturer, a model name, and a serial number of the mobile terminal  50 . 
     The mobile terminal  50  may transmit the created simple login ID (UUID) to the server  70  in S 1440 . 
     In the example of a new user, the server  70  may check and input information in a database  75  that is provided inside or outside of the server  70  in S 1451 , and the database  75  may response to the check and input operation in S 1452 . 
     Alternatively, in the example of a registered user, the server  70  may input information into the database  75  that is provided inside or outside of the server  70  in S 1456 , and the database may response to the input operation in S 1457 . 
     In the example of a new user, information is input into the database  75 , and based on the input information, if there is previously input information, the previously input information is deleted, and then information for the new user is generated again to issue a user ID and user session, thereby preparing an application for use. 
     In the example of a registered user, if the user is registered in the database  75 , it is recognized that the user is activated, and the user&#39;s ID and session are returned, thereby preparing an application for use in S 1460 . 
     The mobile terminal, to which a user session is issued, prepares for use of a home application service, such as registration of a home appliance and the like, in S 1470  and may display an execution screen of the application on the display  451 . 
       FIGS. 15 to 25  are diagrams referred to in the description of a method of operating a mobile terminal and a server according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     According to an exemplary embodiment, a user may switch (or change) a simple login ID to a general user account at a desired time, and may integrate or manage services used before the account switching (or account changing) or stored data. 
     For example, the user may switch an account by selecting an account switching button in the pop-up shown in  FIG. 11  or by selecting an account switching button included in the setting screen. 
     Once the user selects the account switching button in the pop-up or the account switching button included in the setting screen, the controller  480  may display a message indicating the account switching, and may control switching to a screen for the account login. 
       FIGS. 15 and 16  are diagrams illustrating setting screens.  FIG. 15  illustrates a setting screen for a general user account login, and  FIG. 16  is a setting screen for a simple login. 
     Referring to  FIGS. 15 and 16 , the setting screens  1500  and  1600  may include: account and product management regions  1510  and  1610 , including menu items for setting a product nickname, a product network, a product time zone, and product edit; notification information setting regions  1520  and  1620  including a menu item for setting a notification function; and general regions  1530  and  1630  including a menu item for other general settings. 
     In the setting screen  1500  displayed for the general user account login, the account and product management region  1510  may include account information including an ID and a logout button  1511 . 
     In some embodiments, the account information may only include the logout button  1511  without the ID/e-mail information. 
     Once a user selects the logout button  1511 , the controller  480  may provide a pop-up to confirm the logout. After the logout, the controller  480  may control switching to a welcome screen. 
     The account and product management regions  1510  and  1610  may include at least one or more of the following: a product nickname item in the case where there are registered products; a product network item in the case where there is a product model, among the registered products, that supports setting of a product network; a time zone item in the case where there is a product which requires setting of a time zone among the registered products; and a product edit item for editing products. 
     Once a user selects a menu item in either the setting screen  1500  or the setting screen  1600 , a detail display screen of the selected menu item may be displayed, or an additional screen may be displayed as a pop-up. 
     For example, in the case where the product nickname item is selected, a screen may be switched to a nickname management screen; in the case where the product network item is selected, a screen may be switched to a registered product list screen; in the case where the time zone item is selected, a screen may be switched to a registered product list screen where the time zone may be changed; and in the case where the product edit item is selected, a screen may be switched to a screen for editing a registered product. 
     In the case where there is a product that supports a PUSH notification setting among the registered products, notification information setting regions  1520  and  1620  may include a PUSH notification setting item, and may display an ON/OFF state. Further, once a user selects a notification setting item, a screen may be switched to a detail notification setting screen. 
     The general regions  1530  and  1630  may include a smart data item, which is provided in the case where there is a product model that supports smart data. 
     In the setting screen  1600  displayed for the simple login, the account and product management region  1610  may include an account switching button  1611 . 
     That is, the home screen, displayed after the simple login is performed, may be the same as the home screen displayed after the account login is performed, while the setting screen  1600  of the simple login may be different from the setting screen  1500  of the account login. 
     Once the account switching button  1611  is selected, the controller  480  may control display of a message indicating the account switching, and may control switching to a screen for the account login. 
     For example, the message indicating the account switching may be displayed in the form of an account switching notification pop-up  1700  as shown in  FIG. 17 . 
     The account switching notification pop-up  1700  may include an account switching notification message such as “simple login is switched to LG account login (But, even after the account switching process, registered product information and setting information are kept up-to-date),” and the like. 
     The account switching notification pop-up  1700  may include a cancel item  1710 , by which the account switching may be canceled, and a confirm item  1720 , by which the pop-up  1700  is closed to proceed to the account switching. 
     Once a user selects the confirm item  1720 , the controller  480  terminates the simple login process, and performs switching to a login screen. 
     In some embodiments, the account switching notification pop-up  1700  may be closed after being displayed for a predetermined period of time without an item to be selected by a user, such as the confirm item  1720 . 
     Account switching to a user account during the simple login service may be performed by integrating accounts after a new account is created, or by integrating into previously created user accounts. 
     When account switching is performed during the simple login service, lists of home appliances, which are linked to each account, are integrated. 
     During the account switching, the home appliances, which are linked to the simple login ID (UUID) and the user account, are integrated to allow for convenient use of home appliances, which have been previously used, without the need for re-registration. 
       FIG. 18  illustrates an example of integrating homes appliances linked to the simple login ID (UUID) and the user account, in which the simple login ID (UUID) is integrated into the user account, which is previously created and to which one home appliance is registered and linked. 
     Referring to  FIG. 18 , two home appliances are linked to the simple login ID (UUID), and one home appliance is linked to the user account. In this example, by integrating the simple login ID (UUID) into the user account, three home appliances may be linked to the integrated user account. 
     If no home appliance is linked to an existing user account, or a user account is newly created, only home appliances registered to the simple login ID (UUID) are linked to the integrated user account, and the home appliances are listed. 
     If no home appliance is linked to the simple login ID (UUID), only home appliances registered to the user account before integration are linked to the integrated user account, and the home appliances are listed. 
     During the account switching, a device usage history corresponding to the simple login ID (UUID) and the user account may be integrated and managed. 
     As a service is provided with the home appliances linked thereto, the device usage history may include an event occurrence record, regarding control, state change, error of devices and the like, which is accumulated based on the simple login ID (UUID) and the user account. 
     The device history information, accumulated through the simple login for each mobile terminal, may also be integrated into the integrated user account. 
     Additionally, when an account login is performed by using a predetermined user account or a newly created user account, setting information of an application associated with the home appliances may be applied to the integrated user account based on setting information corresponding to the simple login ID account. 
     Once the account login process is performed by using the predetermined user account or the newly created user account, the controller  480  (of the mobile terminal  50 ) may control the setting information of an application associated with the home appliances to be applied to the integrated user account based on the setting information corresponding to the simple login ID account. 
     Moreover, upon receiving, from the mobile terminal  50 , an account switching request to switch the simple login ID account to the user account, and once the simple login ID account is switched to the predetermined user account or the newly created user account, the processor  510  (of the server  70 ) may control the setting information of an application associated with the home appliances to be applied to the integrated user account based on the setting information corresponding to the simple login ID account. 
     That is, the setting information applied to the simple login ID account, which has been created and managed based on device information of the mobile terminal  50 , may be first applied to the integrated user account. 
       FIG. 19  illustrates an example of integrating user settings of the simple login ID and user account, and more specifically an example of integrating notification settings. 
     The user settings are values set by a service user for a device or service, in which only one setting is provided per user account. 
     During the account switching, setting information applied to a device (i.e., setting information applied to the simple login ID) may be first applied to the user account integrated by the account switching. 
     Referring to  FIG. 19 , it can be seen that regardless of a notification reception setting of a user account, a notification reception setting applied to the simple login ID (UUID) is applied to a notification reception setting of the user account integrated by the account switching. 
     In the case where account login is performed by using a predetermined user account, the controller  480  (of the mobile terminal  50 ) and/or the server  70  (of the processor  510 ) may integrate contents corresponding to the simple login and contents corresponding to the predetermined user account, and provide the integrated contents. 
     Among the contents corresponding to the simple login and the contents corresponding to the predetermined user account, fixed contents defined in a home appliance may be integrated without overlapping, and the integrated contents may be provided. 
     Among the contents corresponding to the simple login and the contents corresponding to the predetermined user account, contents directly generated or changed by a user may be integrated without being deleted, and the integrated contents may be provided. 
     In some embodiments, the controller  480  (of the mobile terminal  50 ) or processor  510  (of the server  70 ) may change a title of at least one of the contents having the same title. 
     In the case where a number of contents corresponding to the simple login ID account and a number of contents corresponding to the predetermined user account are greater than a maximum storage number, the controller  480  (of the mobile terminal  50 ) or processor  510  (of the server  70 ) may control most recently stored contents to be maintained within a range of the maximum storage number. 
     The service contents may be divided into product defined contents and user defined contents. 
     The product defined contents are fixed contents predefined by a product, and are provided to be selected and set by a user, in which the user may only select the contents from a list of the fixed contents, and a plurality of contents may be selected and set per user account. 
     For example, the product defined contents may be wash cycles of a washing machine, and may be bookmarked by a user. 
     The user defined contents are directly generated and stored by a user, and details of the contents are personal and variable. A plurality of contents may be selected and set per user account. 
     For example, the user defined contents may be oven recipes or a list of foods stored in the refrigerator, and may be directly generated and stored by a user, or may be generated based on sensing data of each device. 
     Referring to  FIG. 20 , during the account switching from the simple login ID account (UUID) to the user account (LG), the product defined contents stored for each account may be integrated without overlapping. 
     For example, when three wash cycles, including a general wash cycle, a blanket wash cycle, and a Y-shirt wash cycle, are bookmarked in the simple login ID (UUID) account, and two wash cycles, including a general wash cycle and a Y-shirt wash cycle, are bookmarked in the user account (LG), information to be maintained in the integrated user account after the account switching process is information on three wash cycles of a general wash cycle, a blanket wash cycle, and a Y-shirt wash cycle. 
     That is, product defined contents registered to both accounts are all maintained, while if product defined contents overlap, only one content is maintained. 
     Referring to  FIG. 21 , when the simple login ID account (UUID) is switched to the user account (LG), product defined contents stored for each account are integrated, such that a total number of the product defined contents may be greater than a number set as a maximum storage number. 
     However, some of the contents may be deleted, since a number of contents, which is greater than the maximum storage number, may not be stored. 
     In this example, most recently selected contents are first stored while a maximum storage number allowed for each home appliance is maintained. 
     That is, when a number of contents corresponding to the simple login ID account and a number of contents corresponding to the predetermined user account are greater than the maximum storage number, most recently stored contents are maintained within a range of the maximum storage number. 
     For example, it is assumed that a maximum storage number of bookmarked wash cycles is 200, in which in the case where the simple login ID account has 100 bookmarked wash cycles, and the user account has 200 bookmarked wash cycles, only 200 most recently stored contents may be maintained, and the 200 contents do not overlap with each other. 
     Referring to  FIG. 21 , when the simple login ID account (UUID) is switched to the user account (LG), all the user defined contents stored in each account may be maintained and integrated. The user defined contents are contents directly generated by a user, such that even when contents have the same title, the contents are not considered to be overlapping contents having the same details. 
     For example, three oven recipes (including sea mustard soup, curry rice, and gimbap) are stored in the simple login ID account (UUID), and two oven recipes (including sea mustard soup and gimbap) are stored in the user account (LG), information to be maintained in the integrated user account after the account switching process is information on five oven recipes of sea mustard soup, curry rice, and gimbap, sea mustard soup, and gimbap. That is, all the user defined contents registered to both the accounts are maintained. 
     In some embodiments, however, a title of at least one content, among contents having the same title, may be changed. 
     Referring to  FIG. 22 , sea mustard soup and gimbap are overlapping contents, such that numbers such as 1 or 2, symbols, or names, may be added for identification purposes. 
     Referring to  FIG. 24 , when the simple login ID account (UUID) is switched to the user account (LG), the user defined contents stored for each account are integrated, such that a total number of the user defined contents may be greater than a number set as a maximum storage number. 
     Some of the contents may be deleted, since a number of contents, which is greater than the maximum storage number, may not be stored. 
     In this example, most recently selected contents are first stored while a maximum storage number allowed for each home appliance is maintained. 
     That is, in the case where a number of contents corresponding to the simple login ID account and a number of contents corresponding to the predetermined user account are greater than the maximum storage number, most recently stored contents are maintained within a range of the maximum storage number. 
     For example, it is assumed that a maximum storage number of oven recipes is 999, in which in the case where the simple login ID account has 500 oven recipes, and the user account has 600 oven recipes, only 999 most recently stored contents may be maintained. 
       FIGS. 24 and 25  are diagrams illustrating an example of an application screen according to an example embodiment of the present disclosure. Other embodiments and configurations may also be provided. 
     Referring to  FIGS. 24 and 25 , the application screens  2400  and  2500  may include tab menu items  2411 ,  2412 ,  2511 , and  2512 , which are used to select between a dashboard screen including information on at least two or more devices, and a mode screen to select one mode from a plurality of modes. 
     The application screens  2400  and  2500  may display the dashboard screen or the mode screen in response to an item selected from the tab menu items  2411 ,  2412 ,  2511 , and  2512 . 
       FIG. 24  is a diagram illustrating an application screen, on which the tab menu items  2411  and  2511  are selected. 
     Referring to  FIG. 24 , the dashboard screen  2400  may include information on other types of devices. Other types of devices may be home appliance items, IoT device items, and gateway items. 
     The dashboard screen  2400  may include home appliance items and the gateway items. 
     The home appliance items  2420 ,  2430 ,  2440 , and  2450  may include a name and a current state of a device, a mode applied to the device, and the like. 
     By taking a closer look at the home appliance item by using the refrigerator home appliance item  2420 , it can be seen that the refrigerator home appliance item  2420  may include an icon representative of a refrigerator, and may further include a WiFi icon if the refrigerator has a WiFi module. 
     Additionally, the refrigerator home appliance item  2420  may include a nickname registered at the time of registration of a device, state information of each product and their setting values, icons representative of set modes, and the like. 
     Other home appliance items  2430 ,  2440 , and  2450  may also include similar texts and graphic information to the refrigerator home appliance item  2420 . 
     Once a user selects one of the home appliance items  2420 ,  2430 ,  2440 , and  2450 , a detail home appliance screen is displayed corresponding to the selected home appliance. 
     When there is no particular setting by a user, a default setting may be set to display the dashboard screen as a first screen when an application is executed. 
       FIG. 25  is a diagram illustrating an application screen, on which the mode tab menu items  2412  and  2512  are selected. 
     Referring to  FIG. 25 , the mode screen  2500  may include a plurality of mode items  2521 ,  2522 ,  2523 ,  2524 , and  2525 , including a bedside mode  2521 , a coming home mode  2522 , an away mode  2523 , a comfort mode  2524 , and a vacation mode  2525 . 
     A user may select any one mode item from the plurality of mode items  2521 ,  2522 ,  2523 ,  2524 , and  2525  for detail setting. 
     For example, in response to the away mode  2523  being selected from the plurality of mode items  2521 ,  2522 ,  2523 ,  2524 , and  2525 , a screen is switched to a detail screen of the away mode  2523 , and the detail screen of the away mode  2523  may include an apply menu and detail operation items for each device. 
     According to at least one embodiment, user convenience may be enhanced by providing an application service to control home appliances, and a simple login based on a device and an account login based on an account. 
     Additionally, according to at least one embodiment, the device-based simple login ID account may be readily switched to a general account, and information registered to the accounts may be easily switched and integrated. 
     According to at least one embodiment of the present disclosure, a service to allow for convenient use of a plurality of home appliances may be provided. 
     The operation methods of the mobile terminal and the server according to the present disclosure may be implemented as processor-readable code that can be written on a processor-readable recording medium included in the mobile terminal. The processor-readable recording medium may be any type of recording device in which data is stored in a processor-readable manner. Examples of the processor-readable recording medium include a Read-Only Memory (ROM), a Random-Access Memory (RAM), a Compact Disk Read Only Memory (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, etc. Additionally, the processor-readable recording medium may be a carrier wave, e.g., data transmission over the Internet. In addition, the processor-readable recording medium can be distributed over a plurality of computer systems connected to a network such that processor-readable code is written thereto and executed therefrom in a distribution manner. 
     It is an aspect of the present disclosure to provide a mobile terminal, a server, and a method of operating the same, which may enhance user convenience by providing an application service to control home appliances, and a simple login based on a device and an account login based on an account. 
     It is another aspect of the present disclosure to provide a method to enable simple switching from a device-based simple login ID account to a general account, and to allow for easy switching and integration of information registered to the account. 
     It is yet another aspect of the present disclosure to provide a service to allow for convenient use of a plurality of home appliances. 
     In accordance with one aspect, in order to accomplish the above and other objects, there is provided a mobile terminal including: a display; a radio communication unit configured to exchange data with a server; and a controller configured to, in response to an input to execute an application associated with a home appliance, control a screen of the application associated with the home appliance to be displayed on the display, in response to a simple login item on the screen of the application being selected, create a simple login ID account based on device information of the mobile terminal, and control the radio communication unit to transmit data including information on the created simple login ID account to the server, and in response to an account login item on the screen of the application being selected, control the radio communication unit to transmit data including user account information to the server. Accordingly, user convenience may be enhanced by providing an application to control home appliances, the simple login based on a device, and the account login based on an account. 
     In accordance with another aspect, in order to accomplish the above and other objects, there is provided a server including: a communication module configured to exchange data with a mobile terminal; a storage unit configured to store data to provide a service of an application associated with a home appliance; and a processor configured to control a login operation to be performed based on data, including simple login ID information received from the mobile terminal, or based on user account information, and control the communication module to transmit a control signal, which is received from the mobile terminal, and based on which the home appliance is controlled, to the home appliance to be controlled. 
     According to at least one embodiment, user convenience may be enhanced by providing an application service to control home appliances, and a simple login based on a device and an account login based on an account. 
     Additionally, according to at least one embodiment, the device-based simple login ID account may be readily switched to a general account, and information registered to the accounts may be easily switched and integrated. 
     According to at least one embodiment, a service to allow for convenient use of a plurality of home appliances may be provided. 
     It will be understood that when an element or layer is referred to as being “on” another element or layer, the element or layer can be directly on another element or layer or intervening elements or layers. In contrast, when an element is referred to as being “directly on” another element or layer, there are no intervening elements or layers present. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. 
     It will be understood that, although the terms first, second, third, etc., may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another region, layer or section. Thus, a first element, component, region, layer or section could be termed a second element, component, region, layer or section without departing from the teachings of the present invention. 
     Spatially relative terms, such as “lower”, “upper” and the like, may be used herein for ease of description to describe the relationship of one element or feature to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “lower” relative to other elements or features would then be oriented “upper” relative the other elements or features. Thus, the exemplary term “lower” can encompass both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly. 
     The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms “a”, “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises” and/or “comprising,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. 
     Embodiments of the disclosure are described herein with reference to cross-section illustrations that are schematic illustrations of idealized embodiments (and intermediate structures) of the disclosure. As such, variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected. Thus, embodiments of the disclosure should not be construed as limited to the particular shapes of regions illustrated herein but are to include deviations in shapes that result, for example, from manufacturing. 
     Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein. 
     Any reference in this specification to “one embodiment,” “an embodiment,” “example embodiment,” etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the purview of one skilled in the art to effect such feature, structure, or characteristic in connection with other ones of the embodiments. 
     Although embodiments have been described with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More particularly, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure, the drawings and the appended claims. In addition to variations and modifications in the component parts and/or arrangements, alternative uses will also be apparent to those skilled in the art.