JP2011168139A - On-vehicle display device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To allow the operation of an operation part by an occupant in any other seat than a driver's seat by exactly determining the operation of the operation part by the occupant in any other seat than the driver's seat. <P>SOLUTION: A transmission electrode 12a is mounted on any other seat than the driver's seat and a receiving electrode 22a is mounted on the operation part 23. When an occupant is seated in any other seat than the driver's seat and contact-operates the operation part 23, a change in an electric field generated between the transmission electrode 12a and the receiving electrode 22a is detected through the body of the occupant who contact-operates the operation part 23, by which it is determined whether or not an operation for contacting the operation part 23 by the occupant in any other seat than the driver's seat has been performed and, if yes, regulation of the operation of the operation part 23 is released even while a vehicle is running (S108). <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an in-vehicle display device having a function of restricting an operation to an operation unit during traveling of a vehicle.

  Currently, in-vehicle display devices such as in-vehicle navigation devices are regulated to prohibit operation of an operation unit by a driver's occupant during traveling of the vehicle from the viewpoint of safety. Therefore, if it is necessary to operate the navigation device while driving the vehicle, such as changing destination settings, adding transit points, changing toll road usage, etc., stop the vehicle and operate the navigation device. There is a need to do.

  However, stopping the vehicle and operating the navigation device in this way leads to wasted time. In addition, in situations where it is difficult to find a place where the vehicle is to be stopped or where there are many surrounding vehicles, the burden on the driver is increased and the safety is impaired.

  Therefore, it is possible to reduce the burden on the driver by identifying whether the occupant operating the operation unit is a driver and taking measures to cancel the operation restrictions for occupants other than the driver's seat. It is considered possible.

  As a technique for identifying an occupant, when a receiver is installed in a seat in the vehicle and an occupant carrying an authentication card key storing an authentication code for identifying the owner is seated in the seat in the vehicle, Human body communication is performed through the occupant's body, and an authentication code stored in an authentication card key is received by the receiver, and the occupant is identified based on the authentication code (for example, Patent Document 1). reference).

JP 2009-73421 A

  However, in the apparatus described in Patent Document 1, since the occupant needs to have an authentication card key, the occupant cannot be specified if the occupant forgets the authentication card key. Moreover, although the apparatus as described in the said patent document 1 can identify the passenger | crew who has the authentication card key, it is correctly determined whether it is operation of the operation part by the passenger | crew of seats other than a driver's seat. It cannot be judged.

  The present invention has been made in view of the above problems, and it is an object of the present invention to accurately determine the operation of an operation unit by a passenger in a seat other than the driver's seat and to enable the operation of the operation unit by a passenger in a seat other than the driver's seat. .

  In order to achieve the above object, an invention according to claim 1 is an in-vehicle display device having a function of restricting an operation to an operation unit during traveling of a vehicle, and is provided in a seat other than a driver seat. When an occupant sits on a seat other than the driver's seat and performs a contact operation on the operation unit, the first electrode is provided via the human body of the occupant who performed the contact operation on the operation unit. An operation determination unit that determines whether or not a contact operation to an operation unit by an occupant other than the driver's seat has been performed by detecting a change in an electric field appearing between the first electrode and the second electrode, and an operation determination unit When it is determined that a contact operation to the operation unit by an occupant other than the driver's seat has been performed, an operation restriction release means is provided to release the operation restriction to the operation unit even when the vehicle is traveling. Yes.

  According to such a configuration, when an occupant sits on a seat other than the driver's seat and performs a contact operation on the operation unit, the first electrode and the second electrode are interposed via the human body of the occupant who performs the contact operation on the operation unit. By detecting the change in the electric field appearing between the occupant and the driver, it is determined whether or not the occupant other than the driver's seat has performed the contact operation on the operation unit. If it is determined that the operation has been performed, the operation restriction on the operation unit is released even when the vehicle is traveling. That is, it is possible to accurately determine the operation of the operation unit by a passenger in a seat other than the driver's seat, and to enable the operation of the operation unit by a passenger in a seat other than the driver's seat.

  In order to achieve the above object, the invention according to claim 2 is an in-vehicle display device having a function of restricting an operation to the operation unit during traveling of the vehicle, the first electrode provided in the driver's seat And the second electrode provided in the operation unit, and when the occupant is seated in the driver's seat and performs a contact operation on the operation unit, the first electrode and the first electrode are connected via the human body of the occupant who has operated the operation unit. Whether or not a contact operation to the operation unit by a passenger in the driver's seat has been performed by detecting a change in the electric field appearing between the two electrodes and whether a contact operation to the operation unit by a passenger other than the driver's seat has been performed. Operation control means for canceling operation control to the operation unit even when the vehicle is running when the operation determination unit and the operation determination unit determine that the contact operation to the operation unit by an occupant other than the driver's seat has been performed. And a release means. That.

  According to the above-described configuration, when an occupant sits on the driver's seat and operates the operation unit, the operation unit is contacted between the first electrode and the second electrode via the human body of the occupant who performs the contact operation. By detecting changes in the electric field that appears, it is determined whether a contact operation to the operation unit by a passenger in the driver's seat has been performed or a contact operation to the operation unit by a passenger other than the driver's seat has been performed. When it is determined that the contact operation to the operation unit has been performed, the operation to the operation unit while the vehicle is running is restricted, and when it is determined that the contact operation to the operation unit by a passenger other than the driver's seat is performed, the vehicle Since the operation restriction on the operation unit is released even during traveling, the operation of the operation unit by a passenger in a seat other than the driver's seat is accurately determined in the same manner as in the first aspect of the invention. The operation part can be operated by passengers Can.

  Moreover, since it is not necessary to attach a 1st electrode to a driver's seat and to attach a 1st electrode to seats other than a driver's seat, a structure can be simplified.

  In order to achieve the above object, the invention according to claim 3 is an in-vehicle display device having a function of restricting an operation to the operation unit when the vehicle travels, and a position that can be contacted from a seat other than the driver's seat When the occupant of the seat other than the driver's seat touches the first electrode while operating the contact with the first electrode, the second electrode provided on the operation unit, and the operation unit It is determined whether or not a contact operation to the operation unit by an occupant other than the driver's seat has been performed by detecting a current flowing between the first electrode and the second electrode via the human body of the occupant who operated the contact And when the operation determination means determines that a contact operation to the operation unit by an occupant other than the driver's seat has been performed, the operation restriction release that releases the operation restriction to the operation unit even when the vehicle is traveling And characterized by comprising means .

  According to such a configuration, when an occupant of a seat other than the driver's seat performs a contact operation on the operation unit while being in contact with the first electrode, the first electrode is interposed via the human body of the occupant who has operated the operation unit. By detecting the current flowing between the first electrode and the second electrode, it is determined whether or not a contact operation to the operation unit by an occupant other than the driver's seat has been performed, and the contact operation to the operation unit by an occupant other than the driver's seat When it is determined that the operation is performed, the operation restriction on the operation unit is released even when the vehicle is traveling. That is, it is possible to accurately determine the operation of the operation unit by a passenger in a seat other than the driver's seat, and to enable the operation of the operation unit by a passenger in a seat other than the driver's seat.

  As in the invention described in claim 4, the operation unit is a mechanical switch arranged around the display, and the second electrode is a metal electrode formed at a position in contact with the occupant in the mechanical switch. Can be configured.

  Further, as in the fifth aspect of the invention, the operation unit is a remote control switch provided in a wired remote controller, and the second electrode is a metal formed at a position in contact with the occupant in the remote control switch. An electrode can be used.

  In addition, as in the sixth aspect of the invention, the operation unit is a touch switch provided in the display, and the second electrode can be configured by a transparent electrode arranged so as to overlap the touch switch.

  Further, the invention according to claim 7 is provided with an occupant detection means for detecting the presence or absence of an occupant on the seat, and is provided on the first electrode and the operation portion provided on the seat where the occupant is detected by the occupant detection means. A potential difference is generated between the first electrode provided on the seat where the occupant detection means does not detect an occupant and the second electrode provided on the operation unit. It is characterized by not being allowed to.

  According to such a configuration, a potential difference is not generated between the first electrode and the second electrode provided in the operation unit in a seat where no occupant is detected, so that useless power is not consumed. Can be.

  In the invention according to claim 8, it is determined that there is a contact operation to the operation unit by the contact presence / absence determination unit that determines the presence / absence of the contact operation to the operation unit, and the operation determination unit If it is determined that the contact operation to the operation unit by an occupant other than the driver's seat is not performed, the operation to the operation unit is restricted even if the operation restriction to the operation unit is released by the operation restriction release means. And an operation restricting means.

  According to such a configuration, when it is determined that there is a contact operation to the operation unit, and it is determined that a contact operation to the operation unit by an occupant other than the driver's seat is not performed, an operation to the operation unit is performed. Even if the restriction is released, the operation to the operation unit is restricted. That is, it is possible to estimate that the contact operation to the operation unit by the passenger in the driver seat is performed without providing the first electrode in the driver seat, and to restrict the operation to the operation unit.

It is a figure which shows schematic structure of the vehicle-mounted display apparatus which concerns on one Embodiment of this invention. It is a figure for demonstrating arrangement | positioning of a recognition apparatus. It is a block block diagram of the vehicle-mounted display apparatus which concerns on one Embodiment of this invention. It is a figure for demonstrating a receiving electrode. It is a figure for demonstrating a receiving electrode. It is a flowchart which shows the process of the control apparatus of a navigation apparatus.

  FIG. 1 shows a schematic configuration of an in-vehicle display device according to an embodiment of the present invention. The on-vehicle display device is constituted by a recognition device 1 and a navigation device 2. The navigation device 2 has a function of restricting operation on the operation unit 23 by a driver's seat occupant when the vehicle is traveling.

  The recognition device 1 is a device for recognizing an operation on the operation unit 23 by a passenger in a seat other than the driver's seat, and is provided in each seat other than the driver's seat. In the present embodiment, as shown in FIG. 2, the recognition device 1 is provided in the passenger seat, the left rear seat, and the right rear seat, and is not provided in the driver seat.

  The recognition device 1 includes a transmission electrode 12a (corresponding to a first electrode) described later, and a reception electrode 22a (corresponding to a second electrode) described later is provided in the operation unit 23 of the navigation device 2. Is provided.

  As shown in FIG. 1, when the occupant sits on a seat other than the driver's seat and operates the operation unit 23 of the navigation device 2, the in-vehicle display device is operated via the human body of the occupant who operated the operation unit 23. By detecting whether or not human body communication is performed, it is determined whether or not an operation to the operation unit 23 by an occupant other than the driver's seat has been performed, and an operation to the operation unit 23 by an occupant other than the driver's seat is performed. When it is determined that the operation has been performed, the operation restriction on the operation unit 23 is canceled even during traveling.

  In the present embodiment, human body communication is detected by adopting electric field system human body communication. By adopting this electric field system, it is possible to detect whether or not human body communication is possible even if the occupant wears an insulator such as clothes. Specifically, in the state where the occupant's human body is interposed between the transmission electrode 12a provided in the recognition device 1 and the reception electrode 22a provided in the operation unit 23 of the navigation device 2, the first A potential difference is generated between the electrode and the second electrode to change the electric field on the surface of the human body, and by detecting the change in the electric field on the surface of the human body, the feasibility of human body communication is detected.

  FIG. 3 is a block diagram of the in-vehicle display device. The in-vehicle display device includes a recognition device 1 and a navigation device 2, and power is supplied from the vehicle battery 3 to the recognition device 1 and the navigation device 2.

  The recognition device 1 includes a seating sensor 10, an information storage unit 11, and a transmission unit 12. The seat sensor 10 detects the presence or absence of an occupant seated in each seat other than the driver's seat, and outputs a signal indicating the presence or absence of the occupant seating. In this embodiment, the presence / absence of an occupant's seat is detected using a pressure sensor embedded in the seating surface of each seat other than the driver's seat.

  The information storage unit 11 has a memory, and stores a flag indicating whether or not an occupant is seated in the seat in accordance with a signal input from the seating sensor 10.

  The transmission unit 12 includes a transmission circuit 12b and a transmission electrode 12a. The transmission circuit 12b generates a predetermined pulse signal and outputs the generated pulse signal to the transmission electrode 12a.

  The transmission electrode 12a is for generating an electric field between the transmission electrode 12a and a reception electrode 22a of the navigation device 2 described later. In the present embodiment, when a pulse signal is transmitted from the transmission circuit 12b, the potential of the transmission electrode 12a becomes higher than the potential of the reception electrode 22a of the navigation device 2, and the transmission electrode 12a and the reception electrode 22a of the navigation device 2 An electric field is generated between them.

  The navigation device 2 includes a display unit 21, an operation unit 23 having a reception electrode 22a, a reception circuit 22b, and a control device 24.

  The display unit 21 includes a display such as a liquid crystal, and displays a video corresponding to the video signal input from the control device 24 on the display.

  The receiving electrode 22a is for generating an electric field between the receiving electrode 22a and the transmitting electrode 12a of the recognition apparatus 1 as described above. The receiving circuit 22b is a circuit for detecting a change in the electric field using the receiving electrode 22a.

  The operation unit 23 includes a mechanical switch disposed around the display unit 21, a touch switch provided to overlap the display unit 21, and a remote control switch provided on a remote controller wired to the control device 24 (both shown in FIG. (Not shown).

  FIG. 4 shows an external appearance of the mechanical switch 23 a arranged around the display of the display unit 21. In this figure, a “current location button” is shown. As shown in this figure, in the mechanical switch 23a, a metal receiving electrode 22a is formed at a position where the occupant makes contact. Also in the remote control switch provided in the remote controller, a similar metal receiving electrode 22a is formed at a position where it is touched by an occupant.

  FIG. 5 shows the configuration of the touch switch 23b provided to overlap the display of the display unit 21. A receiving electrode 22a configured using a transparent electrode is disposed so as to overlap with the touch switch 23b.

  The control device 24 is configured as a computer including a CPU, a RAM, a ROM, a flash memory, an I / O, and the like, and the CPU performs each process according to a program stored in the ROM. A signal for specifying the current position is input to the control device 24 from a position detector (not shown) such as a GPS receiver, a vehicle speed sensor, a gyroscope, and a direction sensor.

  The processing of the control device 24 includes a current position specifying process for specifying the current position based on a signal for specifying the current position input from the position detector, and a map data storage medium (not shown) storing map data. The map data around the current position is read out, a map display image in which the vehicle position mark is superimposed on the map around the current position is generated, and this map display image is displayed on the display unit 21. There are route search processing for searching for an optimum guide route to the destination, route guide processing for performing route guidance according to the guide route, and the like.

  In the configuration described above, when accessory power is supplied from the vehicle battery 3 in accordance with the operation of the vehicle driver, the seating sensor 10 and the information storage unit 11 in the recognition device 1 are in an operating state, but the transmission unit 12 operates. It does not become a state. When the seating sensor 10 detects that the occupant is seated and a flag indicating whether or not the occupant is seated in the seat is stored in the memory of the information storage unit 11, the transmission unit 12 is in an operating state. That is, the voltage corresponding to the pulse signal from the transmission circuit 12b is not applied to the transmission electrode 12a provided in the recognition device 1 until the seating of the occupant is detected.

  The navigation device 2 according to the present embodiment has a function of restricting operations on the operation unit 23 by passengers in the driver's seat when the vehicle is traveling.

  Next, processing of the control device 24 of the navigation device 2 will be described. FIG. 6 shows a flowchart of this process. When accessory power is supplied from the vehicle battery 3 in accordance with the operation of the vehicle driver, the navigation device 2 is in an operating state, and the control device 24 performs a diagram in parallel with the current position specifying process, the map display process, and the like. 6 is started. Although not shown in FIG. 6, when the vehicle stops, the operation of the operation unit 23 by each occupant is not restricted.

  First, it is determined whether or not the vehicle is traveling (S100). Specifically, it is determined whether or not the vehicle is traveling based on a signal input from the vehicle speed sensor. Here, when the vehicle is stopped, the determination in S100 is NO, and the determination in S100 is repeatedly performed. At this time, operation with respect to the operation part 23 by each passenger | crew of a vehicle is not controlled.

  When the vehicle starts traveling, the determination in S100 is YES, and then it is determined whether or not there has been an operation on the operation unit 23 (S102). Specifically, based on presence / absence of an operation on at least one of a mechanical switch arranged around the display of the display unit 21, a remote control switch provided on the remote control, and a touch switch provided on the display of the display unit 21. Then, it is determined whether or not there is an operation on the operation unit 23.

  Here, when operation with respect to each switch which comprises the operation part 23 is not implemented, determination of S102 becomes NO and returns to S100.

  When an operation is performed on at least one of the switches constituting the operation unit 23, the determination in S102 is YES, and then it is determined whether the operation is performed by an occupant other than the driver's seat (S104). . Specifically, whether or not the operation is performed by an occupant other than the driver's seat based on whether or not a change in the electric field due to the occupant's body interposed between the first electrode and the second electrode is detected by the receiving circuit 22b. Determine whether.

  Here, when an occupant in the driver's seat operates the operation unit 23 of the navigation device 2, a change in electric field due to the occupant's body interposed between the first electrode and the second electrode is not detected by the receiving circuit 22b. . Therefore, the determination in S104 is NO, and the operation restriction on the operation unit 23 is started (S106). As described above, even if the driver's seat occupant operates each switch of the operation unit 23, the operation becomes invalid.

  Further, when an occupant other than the driver's seat operates the operation unit 23 of the navigation device 2 while the vehicle is traveling, the reception circuit 22b causes the occupant's body to be interposed between the first electrode and the second electrode. A change in the electric field is detected. Therefore, the determination in S104 is NO, and the restriction on the operation on the operation unit 23 is released (S108). Thus, when an occupant other than the driver's seat operates each switch of the operation unit 23, the operation becomes effective even when the vehicle is traveling.

  In addition, when the driver's seat occupant operates the operation unit 23 again while the vehicle is traveling, it is determined that there is a contact operation to the operation unit 23 (YES in S102), and the operation unit 23 by the driver's seat occupant is determined. Even if it is determined that the contact operation is performed (NO in S104) and the operation restriction on the operation unit 23 is released, the operation restriction on the operation unit 23 is started.

  According to the configuration described above, when an occupant sits on a seat other than the driver's seat and performs a contact operation on the operation unit, the first electrode and the second electrode are connected via the human body of the occupant who performs the contact operation on the operation unit. It is determined whether or not a contact operation to the operation unit by an occupant other than the driver's seat has been performed by detecting a change in the electric field appearing during the period, and a contact operation to the operation unit by an occupant other than the driver's seat has been performed. When it is determined, the operation restriction on the operation unit is released even when the vehicle is traveling. That is, it is possible to accurately determine the operation of the operation unit by a passenger in a seat other than the driver's seat, and to enable the operation of the operation unit by a passenger in a seat other than the driver's seat.

  In addition, a seating sensor 10 that detects the presence or absence of an occupant in the seat is provided, and a gap between a first electrode provided in the seat where the occupant is detected by the seating sensor 10 and a second electrode provided in the operation unit is provided. A potential difference is generated, and a potential difference is not generated between the first electrode provided on the seat where the occupant is not detected by the seating sensor 10 and the second electrode provided on the operation unit. Power consumption can be avoided.

  In particular, when there is no passenger, no voltage is applied to the first electrode attached to each seat other than the driver's seat, which is effective from the viewpoint of low power consumption.

  In addition, when it is determined that there is a contact operation to the operation unit, and it is determined that a contact operation to the operation unit by an occupant other than the driver's seat is not performed, the operation restriction on the operation unit is released. In addition, operations on the operation unit are restricted. That is, it is possible to estimate that the contact operation to the operation unit by the passenger in the driver seat is performed without providing the first electrode in the driver seat, and to restrict the operation to the operation unit.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in the above-described embodiment, the recognition device 1 is provided in a seat other than the driver's seat, and when the occupant is seated in a seat other than the driver's seat and the operation unit is operated for contact, the human body of the occupant who operated the operation unit for contact is detected. It is determined whether or not a contact operation to the operation unit by an occupant other than the driver's seat has been performed by detecting a change in the electric field appearing between the first electrode and the second electrode. The recognition device 1 is not arranged in the seat of the vehicle, but the recognition device 1 is arranged in the driver's seat. When the occupant sits in the driver's seat and operates the operation unit, the operation unit is operated in contact. By detecting a change in the electric field appearing between the first electrode and the second electrode via the occupant's human body, it is determined whether or not a contact operation to the operation unit by the occupant in the driver's seat has been performed. You may comprise. In this case, in combination with the affirmative determination in S102, it is also possible to determine whether or not a contact operation on the operation unit by an occupant other than the driver's seat has been performed.

  Moreover, in the said embodiment, although the transmission electrode 12a was provided in the recognition apparatus 1, the reception electrode 22a was provided in the operation part 23, and the electric field was generated toward the reception electrode 22a from the transmission electrode 12a, conversely, the recognition apparatus 1 A receiving electrode may be provided, a transmitting electrode may be provided in the operation unit 23, and an electric field may be generated from the transmitting electrode 12a toward the receiving electrode 22a.

  Further, in the above embodiment, the electric field type human body communication is adopted, so that it is possible to detect whether or not the human body communication is possible even if the occupant wears an insulator such as clothes. It may be adopted. However, in this case, it is necessary for the occupant's body other than the passenger seat to directly contact the transmission electrode 12a and the reception electrode 22a. Therefore, for example, the transmission electrode 12a is disposed at a position where the driver's hand does not reach such as near the window opening / closing switch of the passenger's seat door and the passenger's hand of a seat other than the driver's seat can reach, and the transmission electrode 12a is in contact with the left hand By detecting the current flowing between the transmitting electrode 12a and the receiving electrode 22a provided in the operating unit 23 via the human body of the passenger who has operated the operating unit 23 when operating the operating unit 23 with the right hand, It is possible to detect whether or not human body communication is possible. In this case, the position of the transmission electrode 12a should be a position where the driver cannot contact the transmission electrode 12a and the reception electrode 22a at the same time while driving the vehicle, for example, a position where the driver can contact like the center console. Can do.

  Moreover, in the said embodiment, although comprised using the pressure sensor as the seating sensor 10, you may comprise using sensors other than a pressure sensor.

  Moreover, in the said embodiment, although the structure which embedded the seating sensor 10 in the seat surface of seats other than a driver's seat was shown, it is not limited to such arrangement | positioning, for example, seating sensor 10 other than a driver's seat is shown. It is good also as a structure embedded in the backrest of the seat.

  The correspondence relationship between the configuration in the embodiment and the configuration in the claims will be described. The transmission electrode 12a corresponds to the first electrode, the reception electrode 22a corresponds to the second electrode, and S104 is an operation determination. S108 corresponds to an operation restriction release means, the seating sensor 10 corresponds to an occupant detection means, S102 corresponds to a contact presence / absence determination means, and S106 corresponds to an operation restriction means. In claim 2, S102 and S104 correspond to operation determining means.

DESCRIPTION OF SYMBOLS 1 Recognition apparatus 2 Navigation apparatus 3 Vehicle battery 10 Seat sensor 11 Information storage part 12 Transmission part 12a Transmission electrode 12b Transmission circuit 21 Display part 22a Reception electrode 22b Reception circuit 23 Operation part 23a Mechanical switch 23b Touch switch 24 Control apparatus

Claims (8)

An in-vehicle display device having a function of regulating an operation to an operation unit during vehicle travel,
A first electrode provided in a seat other than the driver seat;
A second electrode provided in the operation unit;
When an occupant sits on a seat other than the driver's seat and performs a contact operation on the operation unit, the first electrode and the second electrode are interposed between the human body of the occupant who performed the contact operation on the operation unit. Operation determining means for determining whether or not a contact operation to the operation unit by an occupant other than the driver's seat has been performed by detecting a change in the electric field that appears;
When it is determined by the operation determination means that a contact operation to the operation unit by an occupant other than the driver's seat has been performed, an operation restriction release unit that releases the operation restriction to the operation unit even when the vehicle is traveling. And an in-vehicle display device. An in-vehicle display device having a function of regulating an operation to an operation unit during vehicle travel,
A first electrode provided in the driver seat;
A second electrode provided in the operation unit;
When an occupant sits in the driver's seat and performs a contact operation on the operation unit, an electric field that appears between the first electrode and the second electrode via the human body of the occupant who performed the contact operation on the operation unit. An operation determination unit that determines whether a contact operation to the operation unit by an occupant of the driver seat has been performed by detecting a change, or whether a contact operation to the operation unit by an occupant other than the driver seat has been performed. ,
When it is determined by the operation determination means that a contact operation to the operation unit by an occupant other than the driver's seat has been performed, an operation restriction release unit that releases the operation restriction to the operation unit even when the vehicle is traveling. And an in-vehicle display device. An in-vehicle display device having a function of regulating an operation to an operation unit during vehicle travel,
A first electrode provided at a position accessible from a seat other than the driver seat;
A second electrode provided in the operation unit;
When an occupant in a seat other than the driver's seat touches the first electrode while touching the first electrode, the first electrode and the second electrode are connected via the human body of the occupant who touched the operation portion. Operation determining means for determining whether or not a contact operation to the operation unit by an occupant other than the driver seat has been performed by detecting a current flowing between the electrode and the electrode;
When it is determined by the operation determination means that a contact operation to the operation unit by an occupant other than the driver's seat has been performed, an operation restriction release unit that releases the operation restriction to the operation unit even when the vehicle is traveling. And an in-vehicle display device. The operation unit is a mechanical switch arranged around the display,
The in-vehicle display device according to any one of claims 1 to 3, wherein the second electrode is formed of a metal electrode formed at a position in contact with the occupant in the mechanical switch. . The operation unit is a remote control switch provided on a wired remote control,
The in-vehicle display device according to any one of claims 1 to 3, wherein the second electrode is configured by a metal electrode formed at a position in contact with the occupant in the remote control switch. . The operation unit is a touch switch provided on a display,
The in-vehicle display device according to any one of claims 1 to 3, wherein the second electrode is configured by a transparent electrode disposed to overlap the touch switch. Occupant detection means for detecting the presence or absence of an occupant in the seat,
A potential difference is generated between the first electrode provided on the seat where the occupant is detected by the occupant detection means and the second electrode provided on the operation unit, and the occupant detection means detects the occupant. 6. A potential difference is not generated between the first electrode provided in a seat where no detection is detected and the second electrode provided in the operation unit. The vehicle-mounted display apparatus as described in any one of these. Contact presence / absence determining means for determining presence / absence of a contact operation to the operation unit;
When it is determined by the contact presence / absence determination means that there is a contact operation to the operation section, and the operation determination means determines that a contact operation to the operation section by an occupant other than the driver's seat has not been performed. The operation restriction means for restricting the operation to the operation portion even when the operation restriction to the operation portion is released by the operation restriction release means. The vehicle-mounted display apparatus as described in any one.

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