JP2015134556A - On-vehicle apparatus and method of suppressing operation in the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the use of a portable terminal linked to an on-vehicle apparatus in a driver seat during traveling as much as possible.SOLUTION: An on-vehicle apparatus 10 determines whether or not a vehicle is traveling on the basis of vehicle information (speed information: vehicle speed pulse) obtained with CAN communication or the like on the basis of information that a portable terminal 20 in linkage exists in a driver seat, performs shutdown so that information such as video and sound output from the potable terminal 20 is not displayed on the on-vehicle apparatus 10 in a case in which the vehicle is in travel and the on-vehicle apparatus is linked to the portable terminal 20 in the driver seat, displays a warning screen on a screen of the on-vehicle apparatus 10 instead, and outputs warning sound for prompting not to use the portable terminal.

Description

  The present invention relates to an in-vehicle device that can be connected to a mobile terminal and can be operated from the mobile terminal, and a method for suppressing operation in the in-vehicle device.

In recent years, it has begun to be used by connecting an in-vehicle device and a mobile terminal device. However, it is preferable to suppress the operation by the driver while traveling.
Conventionally, Patent Documents 1 to 5 are disclosed in relation to a technique for connecting and using an in-vehicle device and a portable terminal device.
Patent Document 1 discloses a vehicle communication system and a vehicle for operating an application executed on a vehicle communication device and an application executed on a mobile terminal device connected to the vehicle communication device so as to communicate with each other. The present invention relates to a communication device for use and a mobile terminal device. In the paragraphs 0024 and 2, various display screens such as “the home screen H shown in FIG. 2A and the operation input restriction screen R shown in FIG. 2B can be displayed. Is disclosed that "the vehicle communication device 2 and the mobile phone 3 cooperate with each other".

Patent Document 2 relates to an in-vehicle device that controls and restricts the use of an application based on a policy on the use of a mobile device by a system vehicle operator.
Paragraphs 0012 to 0013 and FIG. 1 indicate that "rate of speed data is periodically transmitted ... the index of speed data is periodically transmitted ... which function of the mobile device is disabled by the software application and when There is a disclosure of “a policy that defines”.

Patent Document 3 relates to a vehicle-mounted device in which the mobile terminal device and the vehicle-mounted device are normally linked and controlled regardless of what information is transmitted from the mobile terminal device.
In paragraph 0073 and FIG. 1, “By acquiring vehicle speed, acceleration, stop information, and the like and transmitting them periodically, the mobile terminal 40 can provide or suppress an application according to the running state. Specifically, there is a disclosure that the portable terminal 40 inhibits activation of the TV application if the vehicle is running.

Patent Document 4 relates to an in-vehicle system, an in-vehicle device, and an execution control method for the command that appropriately execute an operation command by a passenger.
In paragraph 0047 and FIG. 2, “a short-range communication unit that directly communicates with the portable terminal 30 and the DA 10 by weak radio waves”, and in paragraph 0053, “has various applications 34 and the DA cooperation unit 35”, Paragraph 0107 discloses that “when the vehicle is running, for example, a prohibited command list that prohibits all private information browsing commands is used for determining whether to execute a command”.

Patent Document 5 relates to a vehicle-mounted device, a vehicle-mounted device control method, and a program that can appropriately control the cooperation between the mobile terminal and the vehicle-mounted device with a simple configuration.
In FIG. 3, FIG. 11, FIG. 19, “The operation permission / prohibition table 12d in FIG. 3 prohibits the operation of the car navigation function and the audio function. “Display on display unit 17”, paragraph 0118 “addition of whether or not the vehicle is owned by the driver (at the driver's seat) or whether or not the vehicle is driving” may be added. There is.

JP 2013-012823 A Special table 2012-526497 gazette JP 2010-130553 A JP 2010-130551 A JP 2013-150128 A

In the above-described patent documents, it has not been possible to suppress only the operation of the mobile terminal by the driver with the simplest possible configuration.
In recent years, navigation apps on mobile devices such as smartphones and tablets that have become more sophisticated have been increasingly used in cars instead of in-vehicle devices, and accordingly, disc playback without a navigation function In-vehicle devices called DisplayAudio, centering on radio, external input, and mobile terminal cooperation, are beginning to spread.
On the other hand, there are many devices that restrict the operation of in-vehicle devices while traveling from the viewpoint of safety, but in the cooperation function with the mobile terminal, it has reached the point of limiting the use of the mobile device of the cooperation destination There is also a problem of not.
Moreover, since it is only a driver that should restrict | limit the utilization during driving | running | working, there also exists a subject that convenience will be impaired to restrict | limit a passenger.

  The present invention suppresses the use in a driver's seat while traveling in a mobile terminal linked to an in-vehicle device.

  The present invention is an in-vehicle device that can be connected to a mobile terminal, obtains and outputs information from the mobile terminal, and has an information output means for inputting and outputting information from the mobile terminal, and an antenna installed at a predetermined position A wireless communication means capable of transmitting and receiving data to and from the portable terminal within a predetermined distance from the antenna with a weak wireless output, and controlling the wireless communication means, wherein the portable terminal is connected to the wireless communication means. An operation suppressing means for varying the output of information by the information output means depending on whether or not the connection is at a predetermined position where the connection is possible is provided.

  This in-vehicle device is connected to a portable terminal, and originally inputs and outputs information from the portable terminal by the information output means. For example, the portable terminal outputs video and audio as the information to the in-vehicle device, and the information output means outputs the video and audio. On the other hand, wireless communication means is provided, and data can be transmitted to and received from the mobile terminal. The antenna can be installed at a predetermined position, and the wireless communication means can weaken the wireless output so that data can be transmitted / received only to / from a portable terminal within a predetermined distance from the antenna. For example, in an automobile, the antenna is installed closest to the driver's seat and farthest from other passenger seats.

  In other words, when the wireless output is weak, when it is installed in the car, it can communicate with the mobile terminal in the nearest one seat, but it cannot communicate with the mobile terminals in other seats. This is a possible output. As an example, it can be said that communication with a mobile terminal within 0.8 m to 1.2 m is possible, and communication with a mobile terminal farther than this is impossible. The communication distance may be adjusted by making the antenna itself adjustable in sensitivity.

  Then, the operation suppressing means controls the wireless communication means, and varies the output of information by the information output means depending on whether or not the portable terminal is in a predetermined position connectable to the wireless communication means. . For example, if the mobile terminal is located within a range of 0.8 m to 1.2 m from the antenna, it can be considered that the mobile terminal is in the driver's seat, that is, the driver has. Depending on whether or not the portable terminal is at the position of the driver's seat, the information output by the information output means can be made different.

  More specifically, the video and audio are output from the in-vehicle device when the mobile terminal is not at the driver's seat, and the video and audio output is prohibited when the mobile terminal is at the driver's seat. And a warning is output from the in-vehicle device.

According to the present invention, it is possible to change the output of information by the information output means depending on whether the portable terminal is within a predetermined distance from the antenna or not.
For example, a weak radio wave that is different from the radio wave intensity that is normally emitted from a short-range wireless transceiver installed near the driver's seat is periodically transmitted, and if there is a response from the terminal, it is specified that it is near the driver's seat . And while it is specified to be near the driver's seat, the video display on the in-vehicle device is cut off at the in-vehicle device side while driving and the warning display and warning sound are output together with information such as the vehicle speed pulse. The driver can be expected to have an effect of suppressing the use of the mobile terminal while traveling.

It is a block diagram of the vehicle equipment of this invention. It is a flowchart which shows the process sequence of the same vehicle equipment. It is a figure which shows the position of the passenger in a vehicle. It is a flowchart of a 2nd Example. It is a flowchart of a 3rd Example. It is a flowchart of 4th Example. It is a figure which shows the position of the passenger in a vehicle. It is a flowchart of 5th Example. It is a flowchart of a sixth embodiment.

(First Example)
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a block diagram showing an in-vehicle device according to the present invention.
In the figure, a mobile terminal 20 can be connected to the in-vehicle device 10 and video and audio of the mobile terminal 20 can be output. The in-vehicle device 10 is connected to a communication system in the vehicle via a cable, and can communicate with each ECU 30 in the vehicle.

  The in-vehicle device 10 includes a control unit 11 that controls almost all controls, and includes a display unit 12 for outputting video information and an audio output unit 13 for outputting audio information. In addition, a video input unit 14 for inputting video and a voice input unit 15 for inputting audio are provided, and video and audio information can be input when connected to the portable terminal 20. That is, when video and audio information is input from the mobile terminal 20, the video and audio can be output from the display unit 12 and the audio output unit 13. The control unit 11, the display unit 12, and the audio responsible for this processing The output unit 13, the video input unit 14, and the audio input unit 15 constitute information output means.

  The short-range wireless transmission / reception unit 16 wirelessly transmits / receives data to / from an external device in accordance with a predetermined communication standard, and the control unit 11 transmits / receives data to / from the external device via the short-range wireless transmission / reception unit 16. Is possible. Here, the data transmission / reception includes processing for obtaining a response and receiving a response to the response. An example of the communication standard is Bluetooth. However, the short-range wireless transmission / reception unit 16 can switch the wireless output between a normal output and a weak wireless output. In addition, the short-range wireless transmission / reception unit 16 is connected to an antenna 16a that can be installed at an arbitrary position in the passenger compartment. This antenna 16a is installed in a place near the A pillar on the driver's seat side. This position may be determined and attached on the condition that the driver's seat is the closest and the position farthest from other boarding seats. The short-range wireless transmission / reception unit 16 constitutes a wireless communication unit.

Since the control unit 11 communicates with each ECU 30 in the vehicle, a CAN communication unit 17 corresponding to the network standard in the vehicle is also provided. In addition, the memory | storage part 18 which memorize | stores the information etc. which are required for the control part 11 to perform various control is also provided.
In the present embodiment, the mobile terminal 20 and the in-vehicle device 10 are connected by wire, but may be connected wirelessly. Information input from the mobile terminal 20 is video and audio, but only one of them or other information may be used.
The control unit 11 executes a program corresponding to the flowchart shown below to execute processing corresponding to the flowchart, and constitutes an operation suppression unit.

FIG. 2 is a flowchart showing the processing procedure of the in-vehicle device 10.
It is assumed that the user connects the mobile terminal 20 to the in-vehicle device 10 via a predetermined cable in the vehicle. The control unit 11 determines that the mobile terminal 20 is connected in step S100. After the connection, the control unit 11 outputs a radio wave with a weak wireless output to the mobile terminal 20 in step S110. That is, after making the short-range wireless transmission / reception unit 16 have a weak wireless output, data (command) for requesting a response is transmitted to the mobile terminal 20 in the vicinity.

FIG. 3 shows the position of the passenger in the vehicle.
An antenna 16a is installed at a position diagonally in front of the driver's seat. The other boarding seats are located to the left or rear as viewed from the driver's seat. The range within 0.8 m to 1.2 m from the antenna 16 a is a range in which the short-range wireless transmission / reception unit 16 can communicate with the portable terminal 20 when the wireless output is weak. Note that the weak wireless output may be defined as the strength of the wireless output that enables communication only with the portable terminal 20 within a range (within a distance) of 0.8 m to 1.2 m from the antenna 16a. it can. However, the communication range may be adjusted not only by the wireless output, but also by adjusting the sensitivity of the antenna itself so that the communication can be performed.

  Then, when the wireless output is weak, the portable terminal 20 with which the short-range wireless transmission / reception unit 16 can communicate is located in the driver's seat, that is, only the portable terminal 20 held by the driver. On the other hand, at the normal time when the wireless output is not weak, the mobile terminal 20 with which the short-range wireless transmission / reception unit 16 can communicate is held by all the passengers in the vehicle interior. In this case, it is not possible to detect whether or not the vehicle is a driver, but it is possible to identify the driver by making it weak.

  The control unit 11 determines whether there is a response from the portable terminal 20 in step S120 after setting the wireless output to be weak. If the portable terminal 20 is in the position of the driver's seat as described above, the portable terminal 20 should respond. The control unit 11 waits for a sufficient period of time that a response will be made under normal circumstances, and determines whether there is a response.

  If there is a response, the control unit 11 detects the vehicle speed in step S130. Since the vehicle speed can be acquired in the vehicle by using CAN communication, the vehicle speed is usually detected from the interval of the vehicle speed pulses. However, all that is necessary for this process is information necessary to determine whether the vehicle is stopped or traveling in step S140, and it is not necessary to actually obtain the vehicle speed, and it is determined whether the vehicle is traveling or stopped. I can do it. If it is determined that the control unit 11 is stopped in step S140 based on the obtained information, it can be said that the driver should be prevented from operating the mobile terminal 20.

  For this reason, in step S150, “driver's operation and detection” is performed, the output of video and audio from the portable terminal 20 is prohibited, and a warning is output from the in-vehicle device 10. That is, the control unit 11 does not output the information from the mobile terminal 20 input from the video input unit 14 and the audio input unit 15 on the display unit 12 and the audio output unit 13, but instead issues a warning on the display unit 12. An image is displayed and a warning sound is generated by the audio output unit 13. Note that the warning may not be output from both the display unit 12 and the audio output unit 13, but may be output from either one. Note that the output is prohibited only when it is determined that the vehicle is traveling in steps S130 and S140. This is because it is not dangerous for the driver to operate the vehicle while the vehicle is stopped, and it is extremely inconvenient if it is prohibited even in this case.

  On the other hand, the fact that no response is obtained in step S120 means that the portable terminal 20 is not within the range of 0.8 m to 1.2 m from the antenna 16a in FIG. In other words, since it is not in the position of the driver's seat, the control unit 11 “detects an operation other than the driver” in step S160, and outputs video and audio from the mobile terminal 20. That is, the control unit 11 causes the display unit 12 and the audio output unit 13 to output information from the mobile terminal 20 input from the video input unit 14 and the audio input unit 15.

  In this way, by responding differently in step S150 and step S160, “the information output means outputs information depending on whether or not the portable terminal 20 is in a predetermined position connectable to the wireless communication means. It can be said that they are “different”. In addition, although suppression of operation by the driver depends on whether the installation position of the antenna 16a is an appropriate position or the level of weak wireless output, these can be easily realized by making an appropriate setting at the time of installation. it can.

In the present embodiment, since the driver wants to suppress the operation of the portable terminal 20 connected to the in-vehicle device 10 during driving, it is limited to the driver, so if the connected portable terminal 20 exists near the driver's seat, The video of the terminal 20 cannot be displayed on the in-vehicle device 10. At that time, a warning sound is output together with a warning display.
That is, the in-vehicle device 10 determines whether or not the vehicle is traveling based on the vehicle information (speed information: vehicle speed pulse) obtained by CAN communication or the like based on the information that the mobile terminal 20 in cooperation exists in the driver's seat. When the vehicle is traveling and is in cooperation with the mobile terminal 20 in the driver's seat, the video and audio information output from the mobile terminal 20 is blocked from being displayed on the in-vehicle device 10 and is instead mounted in the vehicle. A warning screen is displayed on the screen of the device 10, and a warning sound for prompting not to use the voice is output. And the suppression method is provided in this procedure.

  As a method for specifying the mobile terminal 20 near the driver's seat, a short-range wireless (Bluetooth or WiFi) radio wave currently installed in many mobile terminals 20 is used. Therefore, short-distance wireless connection is also performed at the same time when the in-vehicle device 10 is linked. By installing the transmission / reception unit (or antenna) on the near-field wireless in-vehicle device 10 side in front of the driver's seat window, the driver's seat is closest to the transmission / reception unit.

The transmitter / receiver performs wireless communication with a radio wave intensity that normally reaches the entire interior of the vehicle, but responds to the weak radio wave by emitting a weak radio wave that periodically reaches only about 1 m from the in-vehicle device 10 side. If the portable terminal 20 is a terminal that is linked to the in-vehicle device 10, it can be specified that the portable terminal 20 exists in the driver's seat.
Further, not only the weak radio waves are periodically emitted, but an application dedicated to cooperation with the in-vehicle device 10 can be installed in the mobile terminal 20 and the application can recognize that the mobile terminal 20 has been operated. In this way, if information indicating that the mobile terminal 20 has been operated is sent to the in-vehicle device 10 and a weak radio wave is emitted at that timing, the weak radio wave is emitted at a minimum frequency, which is efficient. It becomes operation.

(Second embodiment)
In this embodiment, operation suppression of the mobile terminal 20 is realized. That is, a dedicated application for cooperation with the in-vehicle device 10 is installed in the portable terminal 20, and the portable terminal 20 that has received the weak radio wave while cooperating with the in-vehicle device 10 locks the operation of the portable terminal 20 when the application confirms reception. Perform the action. By regularly notifying the traveling information as information from the in-vehicle device 10 side, the operation lock operation of the mobile terminal 20 can be limited to only traveling.

FIG. 4 is a flowchart showing the second embodiment. As described above, the cooperation dedicated application is installed in the mobile terminal 20.
In step S200, the control unit transmits specific information indicating that the vehicle is traveling to the mobile terminal 20 with a weak radio wave. As a result, as shown in step S <b> 210, the mobile terminal 20 that is executing the predetermined application does not accept user operations.

(Third embodiment)
FIG. 5 is a flowchart showing the third embodiment.
In the present embodiment, the control unit 11 repeatedly performs the following processing at predetermined time intervals in step S300. For example, a timer process is implemented and the following process is executed at regular time intervals. In step S <b> 310, the control unit 11 controls the short-range wireless transmission / reception unit 16 to cause the mobile terminal 20 to output a weak radio wave. Step S320 is similar to step S120, and waits for a response for a predetermined waiting time. If there is a response, it is determined in step S330 that the portable terminal 20 is at the driver's seat position (predetermined position) as the latest information. If there is no response, it is determined in step S340 that the mobile terminal 20 is not at the driver seat position (predetermined position) as the latest information.

  By periodically sending a weak radio wave and waiting for a response, the latest information can be held as much as possible. For example, since the warning is output when the driver operates, even when the portable terminal 20 is handed over to the passenger in the passenger seat, the driver is immediately operating the portable terminal 20 by the in-vehicle device 10. It becomes possible to judge that it has disappeared.

(Fourth embodiment)
A method of transmitting a weak radio wave and specifying a position will be described.
As described above, the range in which the weak radio wave to be transmitted is about 1 m, but the range that can be received is expected to be slightly different depending on the reception sensitivity of the mobile terminal 20. In view of this, it is possible to reduce errors in reception sensitivity by providing strength and weakness for weak radio waves, and changing the strength continuously so that the average is 0.8 to 1.2 m. .

FIG. 6 is a flowchart showing the fourth embodiment.
Instead of simply outputting a radio wave with a fixed weak intensity to the mobile terminal 20 in step S110 of the first embodiment, in step S105, the short-range wireless transmission / reception unit 16 outputs a weak radio signal. Assuming that can be changed within a predetermined range, when a weak radio wave is output to the mobile terminal 20, the wireless output is continuously varied within the weak range.

FIG. 7 shows the position of the passenger in the vehicle.
As shown in the figure, the weak radio wave is continuously changed instead of a constant strength. Specifically, the strength is such that the communication distance by weak radio waves repeatedly changes in the range from the inner circle to the outer circle in the figure. By doing in this way, it becomes possible to absorb the difference in reception sensitivity between the mobile terminals 20.

(Fifth embodiment)
In this embodiment, information is distributed only to the portable terminal 20 in the driver's seat. By specifying the portable terminal 20 in the driver's seat, information related to driving (the remaining amount of gasoline, the remaining amount of oil, the travel distance, and other information obtained through CAN communication) obtained by the in-vehicle device 10 is only given to the portable terminal 20. Notify when driving stops. In this way, useful information can be automatically distributed to the owner of the vehicle and received by the dedicated application of each terminal.

FIG. 8 is a flowchart showing the fifth embodiment.
In step S400, control unit 11 detects vehicle maintenance information from each ECU 30 in the vehicle by CAN communication. Next, in step S410, the control unit 11 determines whether the vehicle is stopped. This may be determined from the vehicle speed pulse or the like, similar to steps S120 and S130. If it is stopped, a weak radio wave is output to the mobile terminal 20 in step S420, and a response is waited in step S430. If there is a response, it is determined in step S440 that the mobile terminal 20 is at a predetermined position, and maintenance information is transmitted. That is, if the mobile terminal 20 is in the driver's seat (predetermined position) and is stopped, maintenance information can be transmitted.

(Sixth embodiment)
In this embodiment, information is distributed only to terminals other than the driver's seat. When the in-vehicle device 10 is information on the music that the in-vehicle device 10 is currently playing, radio information, or the in-vehicle device 10 has a car navigation function for the portable terminal 20 that can be linked other than the terminal in the driver's seat , It provides tourist information in the vicinity and distributes the current navigation information. Each mobile terminal 20 receives this information with a dedicated application, so that information that can be displayed only on the screen of the in-vehicle device 10 can be shared by seats other than the driver's seat in the vehicle.

FIG. 9 is a flowchart showing the sixth embodiment.
In step S <b> 510, the control unit 11 outputs radio waves with the output from the short-range wireless transmission / reception unit 16 as weak to the mobile terminal 20 connected from the in-vehicle device 10. In step S520, control unit 11 waits for a response from portable terminal 20. If there is no response, it means that the mobile terminal 20 is in a boarding seat other than the driver's seat, and information may be transmitted. Therefore, in step S530, the in-vehicle device 10 such as the detailed music information currently being reproduced is obtained, and information that can be enjoyed by other than the driver is transmitted from the short-range wireless transceiver unit 16. In step S540, the mobile terminal 20 can also request the playback of a song, and in response to the request, the in-vehicle device 10 instructs the playback of the song.

Needless to say, the present invention is not limited to the above embodiments. It goes without saying for those skilled in the art,
-Applying the combination of the mutually replaceable members and configurations disclosed in the above-described embodiments as appropriate-The above-described embodiments are not disclosed in the above-described embodiments, but are publicly known techniques. The members and structures that can be mutually replaced with the members and structures disclosed in the above are appropriately replaced, and the combination is changed and applied. It is an embodiment of the present invention that a person skilled in the art appropriately replaces the members and configurations that can be assumed as substitutes for the members and configurations disclosed in the above-described embodiments, and changes the combination to apply. It is disclosed as.

DESCRIPTION OF SYMBOLS 10 ... Vehicle equipment, 11 ... Control part, 12 ... Display part, 13 ... Audio | voice output part, 14 ... Image | video input part, 15 ... Audio | voice input part, 16 ... Short-distance wireless transmission / reception part, 16a ... Antenna, 17 ... CAN communication part , 18 ... storage unit, 20 ... portable terminal, 30 ... ECU.

Claims (10)

An in-vehicle device that enables connection with a portable terminal, obtains information from the portable terminal, and outputs the information.
Information output means for inputting and outputting information from the portable terminal;
An antenna can be installed at a predetermined position, and wireless communication means capable of transmitting and receiving data to and from the portable terminal within a predetermined distance from the antenna with a weak wireless output;
An operation suppression unit that controls the wireless communication unit and varies the output of information in the information output unit depending on whether or not the portable terminal is in a predetermined position connectable to the wireless communication unit. In-vehicle equipment characterized by   The mobile terminal outputs video and audio as the information to the in-vehicle device, and the information output means causes the video and audio to be output from the in-vehicle device when the mobile terminal is not in the predetermined position, The in-vehicle device according to claim 1, wherein when the mobile terminal is in the predetermined position, the video and audio output is prohibited and a warning is output from the in-vehicle device.   The operation suppression unit detects that the mobile terminal is in the predetermined position if there is a response when the wireless output of the wireless communication unit is weak. The in-vehicle device described.   The said operation suppression means can detect the speed of a vehicle, and when the vehicle is driving | running | working based on the speed, the output of the information by the said information output means differs, The claim 1 characterized by the above-mentioned. 4. The in-vehicle device according to any one of 3.   The operation suppressing means can transmit specific information with a weak wireless output by the wireless communication means, and the portable terminal does not accept an operation by a user when receiving the specific information. The in-vehicle device according to any one of claims 1 to 4.   The said operation suppression means detects whether it exists in the position which can be connected, making the radio | wireless output of the said radio | wireless communication means weak, every time predetermined time passes. The vehicle-mounted apparatus in any one.   The wireless communication means can change the wireless output to be weak within a predetermined range, and varies the output within the range when the wireless output is weak. The in-vehicle device according to claim 6.   The said operation suppression means can detect the maintenance information of a vehicle, and if the said portable terminal exists in the said predetermined | prescribed position when a vehicle is stopping, the same information will be transmitted. The in-vehicle device according to any one of Items 7.   The in-vehicle device according to any one of claims 1 to 8, wherein the operation suppression unit transmits information obtained by the in-vehicle device if the portable terminal is not in the predetermined position. . It is possible to connect to a portable terminal, obtain and output information from the portable terminal, and install an antenna at a predetermined position. The wireless output is weak, and the portable terminal and the data within a predetermined distance from the antenna A method of suppressing operation in an in-vehicle device provided with a wireless communication means capable of transmitting and receiving,
Controlling the wireless communication means, detecting whether the portable terminal is at a predetermined position connectable to the wireless communication means, and varying information output depending on whether the portable terminal is at the predetermined position A method for suppressing operation in an in-vehicle device.

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