Patent Publication Number: US-2023136017-A1

Title: Motion gesture sensing device and vehicle-mounted unit manipulation system having same

Description:
CROSS REFERENCE TO RELATED APPLICATION 
     The present application claims priority to Korean Patent Application No. 10-2021-0146613, filed on Oct. 29, 2021, the entire contents of which is incorporated herein for all purposes by this reference. 
     BACKGROUND OF THE INVENTION 
     Field of the Invention 
     The present disclosure relates to a motion gesture sensing device and a vehicle-mounted unit manipulation system having the same. More specifically, the present disclosure relates to a technology in which a sensing space is formed with an electric field and a change in the electric field according to a motion gesture of an occupant in the sensing space is recognized so as to operate respective functions of vehicle-mounted units. 
     Description of the Related Art 
     Various switches for operating vehicle-mounted units, such as driving-related units or convenience units, may be provided in a vehicle. 
     While push button switches that allow mechanical activation have been conventionally applied to operate respective vehicle-mounted units, touch sensitive electronic switches have been currently applied with the advancement of technology. 
     Such switches have a problem of increased risk of a vehicle accident by distracting a driver from looking ahead while driving the vehicle because the driver needs to turn his/her head to view the switches in order to operate the corresponding switches. 
     In particular, more and more units are being mounted on vehicles to improve vehicle quality and convenience, and as the number of these units increases, the number of corresponding switches also increases. This results in distraction of the driver&#39;s attention from the task of driving because the driver needs to find a particular switch, among many switches, in order to operate a specific vehicle-mounted unit. 
     In order to solve the problem caused by the operation of the vehicle switches, a technology for recognizing the operation of switches based only on proximity sensing without directly controlling the switches has been proposed. 
     As an example of the proximity sensing technologies, an optical sensing configuration or a capacitive sensing configuration has been proposed. Since this proximity sensing can only recognize a close proximity near a vehicle-mounted unit, a proximity sensor must be installed into each vehicle-mounted unit. 
     Also, a sensing configuration for recognizing a user&#39;s motion gesture has been proposed. As one of the motion gesture sensing configurations, there is a sensing device for recognizing a change in an electric field. 
     A sensing configuration for recognizing the change in the electric field provides a specified volume of sensing space formed of the electric field on the front side, and configured to detect the change in the electric field according to the user&#39;s motion in the sensing space and recognize this change as a switching operation. 
     As another motion gesture sensing configuration, there is a sensing device using a captured image. The sensing device using the captured image configured to analyze the captured image while continuously capturing the user&#39;s appearance with a camera to determine whether the user&#39;s motion is a specific gesture. 
     However, in the case of the conventional motion gesture sensing, an appropriate sensing space cannot be formed due to their technical configuration or various factors, and thus the recognition of the user&#39;s motion gesture is not reliable. 
     The foregoing is intended merely to aid in the understanding of the background of the present invention, and is not intended to mean that the present invention falls within the purview of the related art that is already known to those skilled in the art. 
     SUMMARY OF THE INVENTION 
     Accordingly, the present disclosure has been made keeping in mind the above problems occurring in the related art, and an objective of the present disclosure is to provide a technology in which a sensing space is formed with an electric field and a change in the electric field according to a motion gesture of an occupant in the sensing space is recognized so as to operate respective functions of vehicle-mounted units. 
     In particular, the present disclosure is intended to solve the problem of increased risk of a vehicle accident caused by a vehicle driver failing to look ahead while driving the vehicle by turning his/her head toward switches to operate the switches. 
     Furthermore, the present disclosure is intended to solve the problem of the complexity of control interfaces and disfigured interior of the vehicle caused by the provision of the respective switches to various vehicle-mounted units. 
     Furthermore, the present disclosure is intended to solve the problem of the conventional motion gesture sensing configuration in which an appropriate sensing space cannot be formed due to various factors, which results in unstable performance of the recognition of the user&#39;s motion gesture. 
     The objective of the present disclosure is not limited to the above-mentioned objectives, and other objectives and advantages of the present disclosure not mentioned can be understood by the following description. 
     In order to achieve the above objectives, according to one aspect of the present invention, there is provided a motion gesture sensing device including: a sensing board including an electrode pattern forming a sensing space with an electric field on a front side of the electrode pattern and detecting a change in the electric field in response to a motion of a user in the sensing space; a gesture determination board determining a gesture of the user on the basis of the change in the electric field detected in the sensing space; and a main board supporting an execution of a specific function of a unit corresponding to the determined gesture. 
     Preferably, the sensing board may include: a transmitter electrode forming the electric field on the front side thereof to form the sensing space; and a receiver electrode detecting the change in the electric field according to the motion of the user in the sensing space. 
     As an example, the transmitter electrode may be formed in a central region of the sensing board, and the receiver electrodes may be formed in upper, lower, left, and right outer edges of the sensing board, respectively. 
     As another example, the transmitter electrode may include a plurality of electrodes spaced apart from each other on the central region to have different outputs. 
     Furthermore, the motion gesture sensing device may further include a cover disposed on the front side of the sensing board to cover the electrode pattern. 
     As an example, the cover may have a curved shape, and a gap space may be formed between a lower surface of the cover and the electrode pattern. 
     Preferably, the motion gesture sensing device may further include one or more electric field intensifying member disposed in the gap space such that a lower end thereof is in contact with the electrode pattern and an upper end thereof is in contact with the lower surface of the cover, the electric field intensifying member including a conductive material electrically connected to the electrode pattern. 
     More preferably, the one or more electric field intensifying member may have an elastic force so that the one or more intensifying member is deformed correspondingly to the curved shape of the cover. 
     Here, a plurality of the electric field intensifying members may be distributed and disposed in the gap space. 
     Furthermore, the one or more electric field intensifying member may be configured to recognize a user&#39;s touch to the cover. 
     As an example, the one or more electric field intensifying member may include a sponge or rubber block containing an electrically conductive material and having an elastic force. 
     As an example, the one or more electric field intensifying member may include a coil spring formed of a conductive material and having one side contacting the electrode pattern and the other side contacting the lower surface of the cover. 
     As an example, the one or more electric field intensifying member may include a leaf spring formed of a conductive material and having a pressure-deformable elastic part with an upper portion contacting the lower surface of the cover and support legs contacting the electrode pattern, the support legs being connected to both sides of the elastic part. 
     According to another aspect of the present disclosure, there is provided a vehicle-mounted unit manipulation system including: the motion gesture sensing device; and one or more vehicle-mounted units operated according to a command provided from the main board of the motion gesture sensing device. 
     As an example, the motion gesture sensing device may be disposed on an overhead console of a vehicle, determines the gesture of an occupant based on the motion of the occupant in a space in front of the overhead console, and operates the one or more vehicle-mounted units corresponding to the gesture of the occupant. 
     Furthermore, the motion gesture sensing device may be configured to recognize the motion of the occupant, determine the gesture according to the motion of the occupant, and transmit the command to perform the specific function of a particular vehicle-mounted unit among the one or more vehicle-mounted units according to the gesture of the occupant. 
     As an example, the one or more vehicle-mounted unit may include a lighting unit including: a plurality of lamps emitting light; and a lamp controller configured to control an operation of respective lamps according to the command provided from the main board. 
     As an example, the one or more vehicle-mounted units may include a sunroof unit including: a sunroof window mounted on a vehicle ceiling to open and close; and a controller configured to control an operation of the sunroof window according to the command provided from the main board. 
     According to the present disclosure as described above, the sensing space is formed with an electric field so that a change in the electric field according to a motion gesture of an occupant in the sensing space is recognized to operate a function of respective vehicle-mounted unit. 
     Furthermore, various vehicle-mounted units can be integrally manipulated through the occupant&#39;s motion gesture using the vehicle-mounted unit manipulation system to which the motion gesture sensing device is applied. 
     Effects of the present disclosure are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those of ordinary skill in the art from the description below. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above and other objectives, features, and other advantages of the present disclosure will be more clearly understood from the following detailed description when taken in conjunction with the accompanying drawings, in which: 
         FIG.  1    is a view illustrating an embodiment of a vehicle lighting unit to which a motion gesture sensing device according to the present disclosure is applied; 
         FIG.  2    is an exploded perspective view illustrating the embodiment of the vehicle lighting unit to which the present disclosure is applied; 
         FIGS.  3 A and  3 B  are views illustrating an embodiment of a lighting means in the vehicle lighting unit to which the motion gesture sensing device according to the present disclosure is applied; 
         FIG.  4    is an exploded perspective view illustrating another embodiment of a vehicle lighting unit to which the present disclosure is applied; 
         FIGS.  5 ,  6 A, and  6 B  are views illustrating a first exemplary configuration of a motion gesture sensing device according to the present disclosure; 
         FIG.  7    is a view illustrating an embodiment of a sensing board of the motion gesture sensing device according to the present disclosure; 
         FIG.  8    is a view illustrating an example of forming an electric field in a sensing space through the motion gesture sensing device according to the present disclosure; 
         FIG.  9    is a view illustrating another embodiment of the sensing board of the motion gesture sensing device according to the present disclosure; 
         FIG.  10    is a view illustrating an embodiment of a coupling structure for a sensing board and a gesture determination board in the motion gesture sensing device according to the present disclosure; 
         FIGS.  11 A and  11 B  are views illustrating a second exemplary configuration of a motion gesture sensing device according to the present disclosure; 
         FIGS.  12 A and  12 B  are views illustrating a third exemplary configuration of a motion gesture sensing device according to the present disclosure; 
         FIGS.  13 ,  14 A, and  14 B  are views illustrating an example in which a sensing space is formed in an embodiment of a vehicle lighting unit to which the motion gesture sensing device according to the present disclosure is applied; 
         FIG.  15    is a block diagram illustrating an embodiment of a vehicle-mounted unit manipulation system to which the motion gesture sensing device according to the present disclosure is applied; 
         FIG.  16    is a flowchart illustrating an operation of the vehicle-mounted unit manipulation system to which the motion gesture sensing device according to the present disclosure is applied; 
         FIG.  17    is a view illustrating an example in which the vehicle-mounted unit manipulation system according to the present disclosure is installed in a vehicle; and 
         FIGS.  18 A to  20 B  are views illustrating various embodiments of performing a lighting operation function according to an occupant&#39;s motion gesture using the vehicle-mounted unit manipulation system according to the present disclosure. 
     
    
    
     DETAILED DESCRIPTION OF THE INVENTION 
     Although preferred embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings, the present disclosure is not limited or restricted to the embodiments. 
     In order to describe the configuration and the operational advantages of the present closure achieved by implementing the present disclosure, preferred embodiments of the present disclosure will be illustrated and described below. 
     First, the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting the present disclosure. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,”, “includes”, or the like when used herein, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. 
     In describing the present disclosure, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present disclosure, the detailed description thereof will be omitted. 
     The present disclosure provides a motion gesture sensing device for recognizing a user&#39;s motion and a vehicle-mounted unit manipulation system to which the motion gesture sensing device is applied for operating various vehicle-mounted units. 
     The motion gesture sensing configuration proposed by the present disclosure may provide a sensing space formed of an electric field so that a change in the electric field according to the user&#39;s motion in the sensing space is detected to recognize a switching operation according to the user&#39;s gesture based on the detected change. 
     Hereinafter, a motion gesture sensing device and a vehicle-mounted unit manipulation system will be described through embodiments according to the present disclosure. For convenience of description, a vehicle lighting unit will be described as an embodiment, but the present disclosure is not limited to the vehicle lighting unit. The present disclosure can be applied to a variety of vehicle-mounted units. 
       FIG.  1    is a view illustrating an embodiment of a vehicle lighting unit to which a motion gesture sensing device according to the present disclosure is applied. 
     The vehicle lighting unit  100  may be mounted inside of a vehicle, and may include various lamps  131  and  135 . In this embodiment, a lighting unit disposed on an overhead console of a vehicle will be described as an example. 
     The vehicle lighting unit  100  may include a plurality of lamps  131  and  135  and a controller (not shown) for operating the lamps, respectively. In addition, the vehicle lighting unit  100  may be provided with a motion gesture sensing device  200  therein. 
     A detailed configuration of the vehicle lighting unit  100  will be described with reference to  FIGS.  2  and  4   . 
       FIG.  2    is an exploded perspective view illustrating the embodiment of the vehicle lighting unit to which the present disclosure is applied. 
     The vehicle lighting unit  100  includes a cover  110 , a motion gesture sensing device  200 , a lighting means  130 , an upper casing  150 , a power supply means  160 , a support means  170 , a lower casing  180 , and the like. 
     The motion gesture sensing device  200  may include a sensing board  230 , a gesture determination board  270 , a main board (not shown), a bracket  250 , and the like. Depending on circumstances, the cover  110  may be integrated into the motion gesture sensing device  200  as one component. 
     The sensing board  230  may include an electrode pattern for forming an electric field in a front space of the cover  110  to form a sensing space, and an electrode pattern for detecting a change in the electric field according to a motion of an occupant in the sensing space. 
     The sensing board  230  may be coupled to the gesture determination board  270  through the bracket  250 , and the sensing board  230  and the gesture determination board  270  may be electrically connected to each other through their respective signal lines. 
     The gesture determination board  270  may determine an occupant&#39;s gesture on the basis of the change in the electric field sensed by the sensing board  230 . That is, it is possible to determine what kind of gesture the occupant&#39;s motion is on the basis of the electric field change pattern that is changed according to the occupant&#39;s motion. 
     The main board (not shown) may be integrally configured with the gesture determination board  270  or otherwise may be configured separately. The main board may be set with command information for a specific function of a unit corresponding to a specific gesture, and may provide the command information corresponding to the gesture determined by the gesture determination board  270  to the corresponding unit so that the unit can perform the specific function. 
     The lighting means  130  may include a lamp and a lamp controller. The lighting means  130  may be provided with a switch so that the lighting means can be operated by occupant&#39;s direct manipulation of the switch, or otherwise the lighting means may be operated according to a command transmitted from the motion gesture sensing device  200 . 
     In relation to the lighting means  130 , a reference will also be made to an embodiment of the lighting means  130  of  FIGS.  3 A and  3 B . 
     In this embodiment, the lighting means  130  is the form that may be disposed on a vehicle overhead console, and the shape and configuration thereof may be variously changed according to the location of a vehicle. 
     The lighting means  130  may include a plurality of lamps, particularly, left and right map lamps  131   a  and  131   b,  a mood lamp  135 , or the like. 
     In addition, the lighting means  130  may include a controller  137  configured to operate respective lamps. Here, the controller  137  may operate respective lamps according to a command from the motion gesture sensing device  200 . 
     As in the present embodiment, a mounting portion for the motion gesture sensing device  200  may be provided in the lower space of the lighting means such that the motion gesture sensing device  200  is specialized for the function of operating the lighting means  130  so that the motion gesture sensing device can be located adjacent to the lighting means  130 . 
     The upper casing  150  may be disposed to support the lighting means  130  on which the motion gesture sensing device  200  has been inserted and mounted. 
     The power supply means  160  may supply power to the motion gesture sensing device  200 , the lighting means  130 , and the like. 
     The support means  170  serves to support the motion gesture sensing device  200  and the lighting means  130 , and preferably, the support means  170  may be provided with a shock-relieving member to prevent an impact occurring during vehicle driving from being transferred to the motion gesture sensing device  200 . 
     The lower casing  180  may be coupled to the upper casing  150  to provide an internal space in which the aforementioned components may be seated while being protected. 
     The respective aforementioned components may be variously modified under certain circumstances. For example, the shapes of the lighting means  130 , the upper casing  150 , the lower casing  180 , etc. may be changed to correspond to a mounting position inside of a vehicle. Also, the upper casing  150 , the lower casing  180 , or the like may be removed if needed. 
       FIG.  4    is an exploded perspective view illustrating another embodiment of a vehicle lighting unit to which the present disclosure is applied. 
     The embodiment of  FIG.  4    is a modification of the embodiment of  FIG.  2    described above, so the configurations of the two embodiments are similar to each other. 
     In this embodiment, unlike the embodiment of  FIG.  2   , an electric field intensifying member  210  may be provided in a motion gesture sensing device  200   a.    
     The electric field intensifying member  210  may be disposed between the sensing board  230  and the cover  110 . A gap space exists between an upper surface of the sensing board  230  and a lower surface of the cover  110 , and the electric field intensifying member  210  may be disposed in the gap space. 
     The electric field intensifying member  210  may include an electrically conductive material having electrical properties, and may be positioned on the upper surface of the sensing board  230  to be electrically connected to the electrode pattern of the sensing board  230 . 
     In addition, the electric field intensifying member  210  may have an elastic force so that the shape thereof may be defamed to correspond to the curved shape of the cover  110 . 
     In the vehicle lighting unit  100 , the lamp may be operated in response to a specific gesture according to an occupant&#39;s motion through the motion gesture sensing devices  200  and  200   a  provided by the present disclosure. 
       FIGS.  5 ,  6 A, and  6 B  are views illustrating a first exemplary configuration of a motion gesture sensing device according to the present disclosure. 
     The motion gesture sensing device  200   a  may include an electric field intensifying member  210 , a sensing board  230 , a gesture determination board  270 , a bracket  250 , and the like. 
     The electric field intensifying member  210  may be fabricated into a block shape, and may include an electrically conductive material having electrical conductivity. The electric field intensifying member  210  may be in contact with the electrode pattern on the sensing board  230  so that the electric field intensifying member and the sensing board are electrically connected to each other. 
     In addition, the electric field intensifying member  210  has an elastic force so that a shape thereof can be freely deformed when pressed. As an example, the electric field intensifying member  210  may be fabricated to have elasticity and electrical properties by providing a flexible material having elasticity with a conductive material such as a sponge or rubber. 
     The electric field intensifying member  210  may be freely deformed in shape to correspond to the curved shape of the lower surface of the cover  110  while being pressed by the cover  110  spaced apart from the sensing board  230 . 
     The electric field intensifying member  210  may be formed into a single block that corresponds to the size of the electrode pattern on the sensing board  230  so as to cover the entire electrode pattern. However, the electric field intensifying member may be preferably formed into a plurality of blocks, which may be distributed and disposed on the electrode pattern on the sensing board  230 . That is, the electric field intensifying member  210  may be dispersedly disposed in the gap space between the sensing board  230  and the cover  110 . 
     Since the electric field intensifying member  210  is in close contact with the lower surface of the cover  110  while being electrically connected to the electrode pattern of the sensing board  230 , upon an occupant&#39;s touch to the upper surface of the cover  110 , the electrode pattern of the sensing board  230  may recognize the occupant&#39;s touch through the electric field intensifying member  210 . Such touch recognition may function as a recognition of a switching operation. 
     The number and arrangement positions of the electric field intensifying members  210  may be variously changed to correspond to the electrode pattern of the sensing board  230 . 
     As illustrated in  FIG.  6 A , the electric field intensifying member  210  may be disposed on the sensing board  230  using an adhesive material or the like. Alternatively, as illustrated in  FIG.  6 B , a mounting partition wall  240  may be provided at a seating portion of the electric field intensifying member  210  on the sensing board  230 , and the electric field intensifying member  210  may be inserted into and disposed on the mounting partition wall  240 . 
     An electrode for forming a sensing space with an electric field on the front side thereof and an electrode for sensing a change in the electric field according to an occupant&#39;s motion in the sensing space may be provided on the sensing board  230 . 
     The sensing board  230  will be described with reference to  FIGS.  7  and  8    together. 
       FIG.  7    is a view illustrating an embodiment of a sensing board of the motion gesture sensing device according to the present disclosure, and  FIG.  8    is a view illustrating an example of forming an electric field in a sensing space through the motion gesture sensing device according to the present disclosure. 
     A transmitter electrode  233  and receiver electrodes  235   a,    235   b ,  235   c,  and  235   d  may be formed on a substrate  231  of the sensing board  230 . 
     The transmitter electrode  233  may be formed in the central region of the substrate  231 , and the receiver electrodes  235   a,    235   b ,  235   c,  and  235   d  may be separately formed on upper, lower, left, and right outer portions of the substrate  231 . 
     The upper receiver electrode  235   a,  the lower receiver electrode  235   b,  the left receiver electrode  235   c,  and the right receiver electrode  235   d  may be disposed about and spaced apart from the transmitter electrode  233 . 
     As illustrated in  FIG.  8   , the transmitter electrode  233  may form an electric field on the front side thereof to form a sensing space. In addition, the receiver electrodes  235  may detect a change in the electric field according to an occupant&#39;s motion in the sensing space. 
     The electrode pattern of the sensing board  230  may be variously modified as needed. 
     In relation to the electrode pattern deformation of the sensing board,  FIG.  9    illustrates another embodiment of the sensing board of the motion gesture sensing device according to the present disclosure. 
     Alternatively, a plurality of transmitter electrodes  233   a ,  233   b,    233   c,  and  233   d  may be formed in the central region of the sensing board  230 . The plurality of transmitter electrodes  233   a ,  233   b,    233   c,  and  233   d  may be formed in a central region of the sensing board  230  in the form of being spaced apart from each other. In this case, the respective transmitter electrodes  233   a,    233   b,    233   c,  and  233   d  may have different outputs. For example, the outer side transmitter electrodes  233   a  and  233   d  may have a stronger output than the center side transmitter electrodes  233   b  and  233   c,  which makes it possible to further intensify the outer region of the electric field formed on the front side. 
     In addition, although each of receiver electrode  235   a,    235   b ,  235   c,  and  235   d  is famed on the upper, lower, left, and right outer sides of the sensing board  230  in this embodiment, the number and position of the receiver electrodes may be adjusted. 
     A controller (not shown) may be provided on the sensing board  230  or on the gesture determination board  270  electrically connected to the sensing board  230  for supplying current and controlling output to the transmitter electrode  233  and the receiver electrodes  235   a ,  235   b,    235   c,  and  235   d  of the sensing board  230 . 
     A signal line of the sensing board  230  and a signal line of the gesture determination board  270  may be electrically connected to each other. This configuration will also be described with reference to an embodiment of a coupling structure between the sensing board and the gesture determination board of the motion gesture sensing device according to the present disclosure as illustrated in  FIG.  10   . 
     A signal line connection terminal  237  may be provided on the lower surface of the sensing board  230 , and the signal line connection terminal  237  may be electrically connected to the transmitter electrode  233  and the receiver electrodes  235   a,    235   b,    235   c,  and  235   d  formed on the upper surface of the sensing board  230 . 
     In addition, a signal line connection terminal  277  may be provided on the upper surface of the gesture determination board  270  to correspond to the signal line connection terminal  237  of the sensing board  230 . The signal line connection terminal  237  of the sensing board  230  and the signal line connection terminal  277  of the gesture determination board  270  are electrically connected to each other to enable mutual signal transmission. 
     The sensing board  230  and the gesture determination board  270  are coupled to each other through the bracket  250 , and may be stably mounted on a device casing or the like through the bracket  250 . 
     Furthermore, according to the present disclosure, the electric field intensifying member  210  may be variously modified in many embodiments, which will now be described. 
       FIGS.  11 A and  11 B  are views illustrating a second exemplary configuration of a motion gesture sensing device according to the present disclosure. 
     A leaf spring may be applied as the electric field intensifying member  210   a.    
     The electric field intensifying member  210   a  may include an elastic part  211   a  that is deformed when pressed, and support legs  215   a  that support the elastic part  211   a.    
     The elastic part  211   a  and the support legs  215   a  of the electric field intensifying member  210   a  may include a conductive material or may be made of a metal material. 
     The support legs  215   a  are electrically connected to the electrode pattern of the sensing board  230 , and an upper side of the elastic part  211   a  may be pressed and deformed according to the shape of the lower surface of the cover  110  while being in contact with the lower surface of the cover  110 . 
     A plurality of electric field intensifying members  210   a  may be arranged on the upper surface of the sensing board  230  to correspond to the size and position of the electrodes formed on the sensing board  230 . 
       FIGS.  12 A and  12 B  are views illustrating a third exemplary configuration of a motion gesture sensing device according to the present disclosure. 
     A coil spring may be applied as the electric field intensifying member  210   b.    
     The electric field intensifying member  210   b  of the coil spring has one side that may be in contact and electrically connected with the electrode pattern of the sensing board  230 , and another side that may be in contact with the lower surface of the cover  110  and may be pressed and deformed according to the shape of the lower surface of the cover  110 . 
     A plurality of electric field intensifying members  210   b  may be arranged on the upper surface of the sensing board  230  to correspond to the size and position of the electrodes famed on the sensing board  230 . 
     A case in which the motion gesture sensing device according to the present disclosure is applied to a vehicle lighting unit has been described through the above embodiment. The operation relationship of the present disclosure will be described with reference to an example in which a sensing space is formed in an embodiment of a vehicle lighting unit to which the motion gesture sensing device according to the present disclosure as illustrated in  FIGS.  13 ,  14 A , and  14 B is applied. 
     For the simplification of the drawing configuration, the reference numbers of respective components will be used with reference to the aforementioned embodiments. 
     In the vehicle lighting unit  100  disposed on the overhead console, the motion gesture sensing device  200  may be disposed in a space below the lighting means  130 . 
     The motion gesture sensing device  200  may form a sensing space  300  with an electric field in front of the cover  110 . 
     The electric field is changed according to an occupant&#39;s motion in the sensing space  300 , and it is possible to determine what gesture the occupant has made through the change pattern of the electric field. 
       FIG.  14 A  illustrates a sensing space for the embodiment of the vehicle lighting unit of  FIG.  2    as described above, and  FIG.  14 B  illustrates a sensing space for the embodiment of the vehicle lighting unit of  FIG.  4   . 
     The sensing spaces  300   a  and  300   b  are formed with an electric field through the transmitter electrode  233  formed on the sensing board  230 , and a change in the electric field on the sensing spaces  300   a  and  300   b  may be detected through the receiver electrodes  235 . 
     The electrode pattern of the sensing board  230  is covered by the cover  110 , whereby a gap space G is formed between the sensing board  230  and the cover  110 . In particular, the cover  110  has a curved surface corresponding to the position of a vehicle on which the vehicle lighting unit  100  is mounted, and thus the gap space G is further enlarged in a certain portion. 
     The gap space reduces the sensing space formed with the electric field. For example, the sensing space F formed with the electric field as illustrated in  FIG.  14 A  may be formed as a predetermined area starting from the upper surfaces of the electrode patterns  233  and  235  of the sensing board  230 . However, due to the gap space G between the sensing board  230  and the cover  110 , the actual sensing space (F-G) capable of recognizing the occupant&#39;s gesture is reduced to a volume excluding the gap space. 
     As the actual sensing space is reduced, the sensing of an occupant&#39;s gesture can be performed only in the vicinity of the vehicle lighting unit  100 , which may greatly reduce the allowable sensing range for the occupant&#39;s motion gesture. 
     In order to increase the allowable sensing range, the sensing space may be enlarged by increasing the output of the electrode patterns  233  and  235  of the sensing board  230 . However, when the sensing space is enlarged by increasing the output, the sensing reliability and accuracy are rapidly deteriorated due to noise sensitivity in response to ambient noise. 
     With the provision of the electric field intensifying member  210  as illustrated in  FIG.  14 B , it is possible to reduce the loss of the sensing space occurring due to the gap space G. 
     The electric field intensifying member  210  disposed in the gap space G between the sensing board  230  and the cover  110  is electrically connected to the electrode patterns  233  and  235  of the sensing board  230  so that the electric field intensifying member may be used as a kind of dummy electrode. 
     The sensing space F formed with the electric field may start from the upper surface of the cover  110 , since the electric field intensifying member  210  fills the gap space G. Accordingly, the loss of the sensing space occurring due to the gap space G may be eliminated. 
     Although the embodiment in which the motion gesture sensing device according to the present disclosure is applied to the vehicle lighting unit has been illustrated, the present disclosure provides a vehicle-mounted unit manipulation system in which various vehicle-mounted units may be integrated and manipulated without being limited to the vehicle lighting unit. 
       FIG.  15    is a block diagram illustrating an embodiment of a vehicle-mounted unit manipulation system to which the motion gesture sensing device according to the present disclosure is applied. 
     The vehicle mounted unit manipulation system according to the present disclosure may include the motion gesture sensing device as described above, vehicle-mounted units  410  mounted on a vehicle to perform respective functions thereof, and the like. 
     The motion gesture device may form a sensing space with an electric field using the configuration including the sensing board  470 , the gesture determination board  450 , the main board  430 , etc., and recognize a pattern of electric field change according to an occupant&#39;s motion in the sensing space to determine a corresponding occupant&#39;s gesture. In addition, the motion gesture device may transmit a manipulation command to a specific vehicle-mounted unit to perform a specific function of the corresponding vehicle-mounted unit set in response to the determined gesture. 
     An operation process of the vehicle mounted unit manipulation system to which the motion gesture sensing device according to the present disclosure is applied will be described with reference to  FIG.  16   . 
     A current may be applied to the transmitter electrode of the sensing board  470  to generate an electric field in front of the sensing board  470  (S 120 ) using an output from the transmitter electrode (S 110 ). The predetermined area in which an electric field is formed may be applied as a sensing space for sensing an occupant&#39;s motion. 
     When the occupant&#39;s motion  5130  is performed in the sensing space, a change in the electric field occurs in the sensing space. Since a signal input through the receiver electrodes of the sensing board  470  (S 140 ) reflects the change in the electric field in the sensing space, the sensing board  470  may detect this electric field change (S 150 ). 
     The gesture determination board  450  analyzes the electric field change detected by the sensing board  470  (S 160 ). For example, the gesture determination board may analyze a position, a path, a pattern, etc. in the electric field change to determine which gesture the occupant has made (S 170 ). 
     A command for performing a function of a specific unit in response to respective occupant&#39;s gestures is set in the main board  430 , and the main board  430  recognizes a command corresponding to the occupant&#39;s gesture determined by the gesture determination board  450  and transmits a command for performing the function of the vehicle-mounted unit  410  corresponding thereto to the corresponding vehicle-mounted unit. 
     In response to the command from the main board  430  for performing the corresponding function, the vehicle-mounted unit  410  may perform a corresponding function (S 180 ). 
     According to the present disclosure, various vehicle-mounted units can be integrally manipulated through the occupant&#39;s motion gesture using the vehicle-mounted unit manipulation system to which the motion gesture sensing device is applied. 
     The vehicle-mounted unit manipulation system according to the present disclosure will be described in more detail through application examples. 
       FIG.  17    is a view illustrating an example in which the vehicle-mounted unit manipulation system according to the present disclosure is installed in a vehicle. 
     The motion gesture sensing device  200  may be installed on an overhead console inside of a vehicle  10 . Of course, the motion gesture sensing device  200  may be installed at another location of the vehicle  10  in consideration of the occupant&#39;s operational convenience and the arrangement location of the vehicle-mounted unit. 
     The motion gesture sensing device  200  may recognize the occupant&#39;s motion gesture and operate various lamps  131  disposed on the overhead console or a sunroof  50  accordingly. 
     As an example, as described above, the motion gesture sensing device  200  may form a sensing space with an electric field and may instruct a lamp controller (not shown) to operate a corresponding lamp in response to the occupant&#39; motion gesture, and accordingly, the lamp controller can activate the corresponding lamp. 
     As another example, the motion gesture sensing device  200  may form a sensing space with an electric field, and may instruct a sunroof controller (not shown) to operate a sunroof window in response to the occupant&#39;s motion gesture, and accordingly, the sunroof controller can activate the sunroof. 
     As a specific example of operating the vehicle-mounted unit according to the occupant&#39;s motion gesture,  FIGS.  18 A to  20 B  illustrate various embodiments of performing a lighting operation function according to the occupant&#39;s motion gesture through the vehicle-mounted unit manipulation system according to the present disclosure. 
     As illustrated in  FIGS.  18 A and  18 B , when a sweep motion in the left or right direction is recognized in the sensing space of the motion gesture sensing device  200  disposed on the vehicle overhead console, the right or left lamp can be operated accordingly. 
     When an occupant&#39;s sweep motion is generated from the left to the right as illustrated in  FIG.  18 A , the motion gesture sensing device  200  may detect a change in the electric field in the sensing space according to the sweep motion, and turn on a left map lamp  131   a  accordingly. 
     In addition, when an occupant&#39;s sweep motion is generated from the right to the left as illustrated in  FIG.  18 B , the motion gesture sensing device  200  may detect a change in the electric field in the sensing space according to the sweep motion, and turn on a right map lamp  131   b  accordingly. 
     As illustrated in  FIGS.  19 A and  19 B , when a vertical sweep motion is recognized in the sensing space of the motion gesture sensing device  200  disposed on the vehicle overhead console, room lamps can be operated accordingly. 
     When an occupant&#39;s sweep motion is generated from the upper side to the lower side as illustrated in  FIG.  19 A , the motion gesture sensing device  200  may detect a change in the electric field in the sensing space according to the sweep motion, and turn off room lamps  131   a,    131   b  accordingly. 
     When an occupant&#39;s sweep motion is generated from the lower side to the upper side as illustrated in  FIG.  19 B , the motion gesture sensing device  200  may detect a change in the electric field in the sensing space according to the sweep motion, and turn on room lamps  131   a,    131   b  accordingly. 
     Furthermore, when the electric field intensifying member  210  described above is applied, an electrode pad of the sensing board  230  may recognize an occupant&#39;s finger touch to the cover  110 . Upon the occupant&#39;s finger touch to the cover of the motion gesture sensing device  200  as illustrated in  FIG.  20 A , the electrode pad of the sensing board may detect this touch action and turn on a mood lamp  130  in response to the touch action. 
     In addition, upon the occupant&#39;s finger touch to the cover of the motion gesture sensing device  200  in a repeated manner at regular intervals, the electrode pad of the sensing board may detect this touch action and change the intensity and color of the mood lamp  135  in response to the touch action. 
     In addition, upon the occupant&#39;s finger touch to the cover of the motion gesture sensing device  200  in a continuous double touching manner as illustrated in  FIG.  20 B , the electrode pad of the sensing board may detect this touch action and turn off the mood lamp  130  in response to the touch action. 
     According to the present disclosure as described above, the sensing space is formed with an electric field so that a change in the electric field according to a motion gesture of an occupant in the sensing space is recognized to operate a function of respective vehicle-mounted unit. 
     Various vehicle-mounted units can be integrally manipulated through the occupant&#39;s motion gesture using the vehicle-mounted unit manipulation system to which the motion gesture sensing device is applied. 
     The above description is merely illustrative of the technical spirit of the present invention, and it will be apparent to those skilled in the art to which the present invention pertains that various modifications and variations can be made without departing from the essential characteristics of the present invention. Therefore, the embodiments described in the present disclosure are not intended to limit the technical spirit of the present invention, but to describe the same, and the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope and spirit of the present invention as disclosed in the accompanying claims.