JP2018042097A - Remote control system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a remote control system for preventing erroneous registration of an ID of a portable device other than a registration object portable device.SOLUTION: When an ID of a portable device is initially registered, the portable device transmits a signal radio wave including the ID to an on-vehicle apparatus in order to register the ID (S2). The on-vehicle apparatus (an on-vehicle apparatus ECU) permits the registration of an ID only when reception intensity RSSI of a signal radio wave including the received ID is equal to or more than a threshold Th1 pre-stored in a threshold setting unit (S5, S11:YES), thereby to prevent erroneous registration of an ID of another portable device positioned in a far place with weaker reception intensity RSSI.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a remote control system that permits starting and stopping of an engine or the like or locking and unlocking of a door based on mutual authentication between an in-vehicle device and a portable device.

  This type of remote control device is disclosed in Patent Document 1 (Japanese Patent Laid-Open No. 5-187158).

  In Patent Document 1, when an ID for mutual authentication of a portable device is initially registered in the in-vehicle device, the same ID is transmitted twice from the portable device. (FIG. 2 of Patent Document 1).

  Note that, depending on the radio wave condition, communication of signal radio waves between the in-vehicle device and the portable device may be possible within a range of about several hundred meters.

JP-A-5-187158

  By the way, when registering the ID of the portable device in the in-vehicle device, it is first necessary to set the in-vehicle device in a registration acceptable state.

  However, when the in-vehicle device is ready for registration, it receives signal waves from other portable devices other than the portable device to be registered, for example, within a range of several hundred meters from the in-vehicle device. Then, the in-vehicle device may misrecognize the other portable device as a portable device to be registered, and may erroneously register the ID of the other portable device as a result.

  The present invention has been made in consideration of such problems, and an object of the present invention is to provide a remote operation system that prevents erroneous registration of IDs of portable devices other than the portable device to be registered.

  The remote operation system according to the present invention is a remote operation system that validates the operation of the portable device with respect to the vehicle after registering the ID of the portable device in the on-vehicle device included in the vehicle, and the portable device includes the on-vehicle device The signal radio wave including the ID is transmitted in order to register the ID in the machine, and the in-vehicle device receives the signal radio wave including the ID (signal reception intensity) when the reception intensity (signal reception intensity) is greater than or equal to a threshold value. Registration is permitted, and if it is less than the threshold, the registration is rejected.

  According to the present invention, at the time of initial registration in which the ID of the portable device is first registered in the in-vehicle device, the in-vehicle device is used only when the reception intensity of the signal radio wave including the ID from the portable device is equal to or greater than a threshold value. Since registration of ID is permitted, registration in a state where reception strength is weak is rejected, so that erroneous registration of IDs of other portable devices located far away can be prevented.

  The on-vehicle device sets the threshold value of the reception intensity when receiving the signal radio wave including the ID to a level higher than a normal threshold value when receiving the signal radio wave for operation on the vehicle after registering the ID. It is preferable to provide a threshold setting device for setting the reception intensity.

  The threshold value of the reception intensity when receiving the signal radio wave in the in-vehicle device when initially registering the ID of the portable device in the in-vehicle device is the normal threshold value when receiving the signal radio wave for operation on the vehicle after the initial registration of the ID By setting it to a higher level, it is possible to prevent the wrong registration of IDs of other portable devices located far away, while allowing operations from far away by a portable device that has already been registered for ID. There is no loss.

  The threshold setting unit of the in-vehicle device sets the threshold for receiving the signal radio wave including the ID to the maximum reception intensity threshold, and then reduces the threshold to the threshold to receive the signal radio wave including the ID. As described above, the threshold value may be varied.

  If comprised in this way, since the signal radio wave of the portable device located in the position nearest to the vehicle-mounted device can be received first, it is possible to prevent erroneous registration of IDs of other portable devices located far away.

  Further, the in-vehicle device receives the first signal radio wave including the ID and stores the ID in a storage device, and then receives the next signal radio wave including the ID at the threshold and stores the ID. When both IDs match, the ID of the in-vehicle device is transmitted to the portable device and the ID registration processing of the in-vehicle device is terminated. Can be secured.

  Further, the vehicle-mounted device receives the first signal radio wave including the ID, stores the ID in a storage device, and then receives the next signal radio wave including the ID, the threshold setting device for the reception intensity. The first signal radio wave including the ID is received by lowering the threshold, storing the ID in the storage device, and when both IDs match, the ID of the in-vehicle device is transmitted to the portable device And you may make it complete | finish the ID registration process of the said vehicle equipment.

  Thus, by making the threshold value of the reception intensity for the second signal radio wave transmitted from the portable device smaller than the threshold value of the reception intensity for the first signal radio wave transmitted from the portable device, After the ID is stored in the storage device, the second ID can be received and registered more reliably.

  The in-vehicle device preferably cancels the registration sequence when the registration of the ID is not completed within a predetermined time.

  When the initial registration of ID is not completed within a predetermined time, the registration sequence is stopped, so that useless power consumption in the in-vehicle device and the portable device can be suppressed.

  The signal radio wave including the ID for registering the ID is preferably a signal radio wave including a stop command signal for the engine of the vehicle by the portable device and the ID. If comprised in this way, it can prevent that an engine starts wrongly at the time of the initial registration to the vehicle equipment of ID of a portable device.

  The signal radio wave including the ID for registering the ID is preferably a signal radio wave including a stop command signal for the fuel cell of the vehicle by the portable device and the ID. If comprised in this way, it can prevent that a fuel cell starts wrongly at the time of the initial registration to the vehicle equipment of portable device ID.

  The signal radio wave including the ID for registering the ID is preferably a signal radio wave including a stop command signal of the motor for driving the vehicle by the portable device and the ID. If comprised in this way, it can prevent that the electric motor for a drive starts wrongly at the time of the initial registration to the vehicle equipment of portable device ID.

  According to this invention, at the time of initial registration in which the ID of the portable device is first registered in the in-vehicle device, the in-vehicle device is used only when the reception intensity of the signal radio wave including the ID from the portable device is equal to or greater than a threshold value. Since registration of ID is permitted, registration in a state where reception strength is weak is rejected, so that erroneous registration of IDs of other portable devices located far away can be prevented.

It is a block diagram which shows schematic structure of the remote control system which concerns on this embodiment. In FIG. 1, it is a block diagram which shows schematic structure of a portable device. It is a flowchart provided for description of initial registration of ID. It is a sequence diagram with which description of initial registration of ID is provided. FIG. 10 is a waveform diagram used for explaining the operation of the first modification. 10 is a flowchart for explaining an operation of a second modification.

  Preferred embodiments of a remote control system according to the present invention will be described below in detail with reference to the accompanying drawings.

[Constitution]
FIG. 1 is a block diagram showing a schematic configuration of a remote control system 10 according to this embodiment.

  The remote operation system 10 basically includes an in-vehicle device 12 provided in a vehicle and a portable device 14 that can be carried by a user of the vehicle.

  The operation of the vehicle (operation of starting / stopping the engine, locking / unlocking the door, etc.) by the operation of pressing the button of the portable device 14 is the ID (unique identification code) of the portable device 14 in the in-vehicle device 12. Valid after registration (initial registration).

  When initially registering the ID of the portable device 14 in the in-vehicle device 12, as shown in FIG. 1, an external diagnostic device 20 that can be connected to a connector 16 provided in the in-vehicle device 12 via a connector 18 with a cable. Is prepared. The diagnostic machine 20 is used from the viewpoint of preventing the vehicle from being stolen. The diagnostic device 20 and the in-vehicle device 12 may be wirelessly connected.

  The diagnostic machine 20 is a diagnostic machine that does not include the display 84 and the keyboard 86, that is, a so-called dedicated machine. A personal computer is connected to the dedicated machine, and initial registration is performed using the display and keyboard on the personal computer. It is good also as a structure.

  FIG. 2 is a block diagram showing a schematic configuration of the portable device 14 whose front appearance is shown in FIG.

  The portable device 14 includes a portable device ECU (Electronic Control Unit) 22 as a control device. The portable unit ECU 22 is a computer including a microcomputer, a CPU (Central Processing Unit), a memory ROM (including EEPROM) 24, a storage unit 24 such as a RAM (Random Access Memory), and others, if necessary, It has an input / output device such as an A / D converter and D / A converter, a timer as a timer, etc., and various function implements (functions) by the CPU reading and executing the program recorded in the ROM Implementation means), for example, functions as a controller, an arithmetic unit, and a processor. The storage unit 24 of the portable device ECU 22 stores an ID (referred to as a portable device ID) that is a unique identification code (unique ID) in advance at the time of factory shipment.

  The other ECUs described below have the same configuration.

  As shown in FIG. 1 and FIG. 2, the portable device 14 has an engine button 26, an unlock button (also referred to as an unlock button) 28, and a lock button (lock) that appear on the exterior and can be pressed by a user or the like. In addition to the operation unit 30, an indicator 32 such as an LED that can be visually recognized by the user or the like is provided. The indicator 32 may be a speaker buzzer.

  Inside the portable device 14, a transmission circuit 35 provided with a transmission antenna 34 and a reception circuit 40 provided with a reception antenna 36 are provided.

  The engine button 26, unlock button 28, lock button 30, indicator 32, transmission circuit 35, and reception circuit 40 are connected to the mobile device ECU 22.

  On the other hand, the in-vehicle device 12 is mounted in the dashboard of the vehicle.

  As shown in FIG. 1, the in-vehicle device 12 includes an in-vehicle device ECU 50. The in-vehicle unit ECU 50 includes an in-vehicle communication RFIC 52 that is an integrated circuit, a memory 54 that is a memory, a timer 55 that is a timer, a registration controller 56 as a function implementer, and a threshold value setting unit 58.

  The storage device 54 of the in-vehicle device ECU 50 stores an in-vehicle device ID that is a unique identification code (unique ID) of the in-vehicle device 12.

  In addition to the connector 16, a receiving circuit 74 provided with a receiving antenna 72, a transmitting circuit 70 provided with a transmitting antenna 68, a door actuator 62 for locking and unlocking the vehicle door, and an engine 64 are connected to the in-vehicle device ECU 50. ing.

  The engine 64 corresponds to an engine of an engine vehicle or a generator power generation engine of a series hybrid vehicle. In the case of a fuel cell vehicle, the engine 64 is replaced with a fuel cell (FC) 66. In the case of an electric vehicle, the engine 64 is replaced with a driving motor (not shown).

  After the registration of the portable device ID in the in-vehicle device 12, the door is unlocked when the unlock button 28 of the portable device 14 is pressed, and the door is locked when the lock button 30 is pressed. The engine 64 (fuel cell 66) starts when the engine button 26 is pressed (for example, long-pressed) within a predetermined time after the lock button 30 is pressed (in the case of the fuel cell 66, power generation is started). .) Further, the engine 64 (fuel cell 66) stops when the engine button 26 is pressed once within a predetermined time. That is, it is noted that when the engine button 26 is pressed once, an engine stop signal is transmitted from the portable device 14 and the engine is not started.

  The diagnostic machine 20 includes a diagnostic machine ECU 80 having a memory 82 that is a memory.

  In addition to the connector 18 with cable, the diagnostic machine ECU 80 includes a display 84 such as a liquid crystal display and a keyboard 86 as a data input device.

[Operation]
Next, the operation of the remote operation system 10 according to this embodiment basically configured as described above (in particular, to the in-vehicle device 12 of the portable device ID (ID of the portable device 14) using the threshold setting device 58). The registration operation) will be described with reference to a flowchart relating to a program executed by the in-vehicle device ECU 50 shown in FIG. 3 and a sequence diagram showing processing among the in-vehicle device 12, the diagnostic device 20, and the portable device 14 shown in FIG. .

  The operation of the keyboard 86 of the diagnostic device 20 and the portable device 14 performed to register the ID of the portable device 14 in the in-vehicle device 12 is performed by, for example, a dealer service engineer.

  As a preliminary preparation, the service engineer attaches the connector 18 with the cable of the portable diagnostic machine 20 to the connector 16 of the in-vehicle machine 12 provided under the dashboard of the vehicle. Moreover, the portable device 14 before ID registration is prepared.

  Next, the service engineer operates the keyboard 86 to display the menu of the diagnostic machine 20 on the display 84. When the service engineer selects “ID registration” from the menu screen in the sequence Q1 shown in FIG. Is transmitted from the diagnostic machine ECU 80 to the in-vehicle machine ECU 50 through the connectors 18 and 16.

  Thereby, in vehicle unit ECU50, the reception determination of the registration command from the diagnostic machine 20 becomes affirmative (step S1: YES) in step S1 of FIG.

  Next, in step S2, the in-vehicle device ECU 50 that has received the registration command transits to the registration mode, and receives the reception information, which is information indicating that the registration command has been received from the diagnostic device 20 in the sequence Q2, as connectors 16 and 18. And presets 5 seconds in the timer 55 and starts counting down from 5 seconds. The timer 55 that counts down the preset 5 seconds is referred to as a 5-second timer.

  Further, in the step S2, the threshold setting unit 58 sets a threshold Th1 of received strength (signal received strength) RSSI (Received Signal Strength Indicator). Reception of the reception intensity RSSI exceeding the set threshold Th1 is set to a value that is enabled when the portable device 14 is located within a few meters from the reception antenna 72, for example. The radio wave attenuates in inverse proportion to the square of the distance.

  The diagnostic machine ECU 80 of the diagnostic machine 20 that has received the reception information displays the downtime of the 5-second timer on the display 84 in sequence Q3 and stops the engine for transmitting the first ID from the portable device 14. Display a prompt for operation.

  When viewing this display (see the broken line with an arrow from sequence Q3 to sequence Q4 in FIG. 4), the service engineer presses the engine button 26 once to cause the portable device 14 to transmit an engine stop signal. The portable device ECU 22 that has detected the pressing of the engine button 26 transmits an engine stop signal including the portable device ID read from the storage device 24 of the portable device ECU 22 through the transmission circuit 35 and the transmission antenna 34 of the portable device 14 in sequence Q4. To do.

  In step S <b> 3, the stop signal including the portable device ID is received through the receiving antenna 72 and the receiving circuit 74 of the in-vehicle device 12 and taken into the RFIC 52.

  Next, in step S4, the RFIC 52 calculates the reception strength RSSI [dBm] of the stop signal including the captured mobile device ID and demodulates the mobile device ID included in the stop signal.

  Next, in step S5, the in-vehicle device ECU 50 compares the calculated received intensity RSSI with the threshold Th1 set by the threshold setting unit 58, and the received intensity RSSI is greater than or equal to the threshold Th1 (RSSI ≧ Th1). ).

  When the received intensity RSSI is less than the threshold Th1 (RSSI <Th1), it is determined that there is a high possibility that the radio wave is from a portable device other than the portable device 14 that is currently registered (step S5: NO). In step S6, step S3 to step S6: NO are repeated until the time of 5 seconds by the timer 55 elapses (step S6: YES). Even when the stop signal is not received in step S3 (step S3: NO), the reception waiting in step S3 is executed until the time measurement of 5 seconds by the timer 55 elapses in step S6. .

  In step S6, when no stop signal is received for 5 seconds, or even if a stop signal is received in step S3, the reception intensity RSSI is less than the threshold Th1 (step S5: NO) in step S5 and 5 seconds have elapsed. If (step S6: YES), registration failure information is transmitted to the diagnostic machine 20 in step S7.

  The diagnostic machine ECU 80 displays the registration failure information (the stop signal is not received even after 5 seconds have passed, or the stop signal is received but the reception intensity RSSI is less than the threshold Th1) on the display 84.

  With this display, the service engineer can estimate that the portable device 14 is out of battery, malfunction, or the like.

  If it is determined in step S5 that the received intensity RSSI is greater than or equal to the threshold Th1 (RSSI ≧ Th1) (step S5: YES), the portable device ID demodulated in step S4 is determined in step S8. Is stored in the memory 54 (sequence Q5).

  Furthermore, in step S8, the in-vehicle device ECU 50 transmits an in-vehicle device ID registration preparation signal to the portable device 14 (omitted in the sequence diagram).

  Furthermore, in step S8, the in-vehicle device ECU 50 transmits acceptance information indicating that the first portable device ID has been normally received to the diagnostic device 20 (sequence Q5), and again by the timer 55 for 5 seconds. Start timing down.

  The diagnostic machine ECU 80 of the diagnostic machine 20 that has received the reception information displays the downtime of the 5-second timer again on the display 84 in sequence Q6 and transmits the second ID from the portable device 14. A display prompting the engine stop operation is displayed on the display 84.

  When this display is seen (see the broken line with an arrow heading from sequence Q6 to Q7 in FIG. 4), the service engineer presses the engine button 26 of the portable device 14. The portable device ECU 22 that has detected the pressing of the engine button 26 transmits again a stop signal including the portable device ID read from the memory 24 of the portable device ECU 22 through the transmission circuit 35 and the transmission antenna 34 of the portable device 14 in sequence Q7. To do.

  In step S <b> 9, the stop signal including the portable device ID is received through the receiving antenna 72 and the receiving circuit 74 of the in-vehicle device 12 and is taken into the RFIC 52.

  Next, in step S10, the RFIC 52 calculates the received reception strength RSSI [dBm] of the stop signal including the portable device ID, and demodulates the portable device ID included in the stop signal.

  Next, in step S11, the in-vehicle device ECU 50 compares the calculated received intensity RSSI with the threshold Th1 set by the threshold setting unit 58, and the received intensity RSSI is greater than or equal to the threshold Th1 (RSSI ≧ Th1). ).

  If the received intensity RSSI is less than the threshold Th1 (RSSI <Th1), it is determined that the radio wave is from a portable device other than the portable device 14 that is currently registered (step S11: NO), and in step S12 Step S9: YES to Step S12: NO are repeated until the time counting of 5 seconds by the timer 55 elapses. Even if the stop signal is not received in step S9 (step S9: NO), the reception wait in step S9 is executed until the time measurement of 5 seconds by the timer 55 elapses in step S12. .

  In step S12, when the stop signal is not received for 5 seconds (step S12: NO), or even if the stop signal is received in step S9, the received intensity RSSI is less than the threshold Th1 (step S11: NO) in step S11. If 5 seconds have elapsed (step S12: YES), registration failure information is transmitted to the diagnostic machine 20 in step S7.

  The diagnostic machine ECU 80 displays the registration failure information (the stop signal is not received even after 5 seconds have passed, or the stop signal is received but the reception intensity RSSI is less than the threshold Th1) on the display 84.

  With this display, the service engineer can estimate that the portable device 14 is out of battery, malfunction, or the like.

  If it is determined in step S11 that the received intensity RSSI is greater than or equal to the threshold Th1 (RSSI ≧ Th1) (step S11: YES), the first stop signal is transmitted in step S13. The portable device ID stored in the device 54 is compared with the portable device ID received this time (second time).

  If they do not match (step S13: NO), the process returns to step S12.

  If they match, in step S14, registration processing of the portable device ID in the storage device 54 is performed (sequence Q8).

  In the registration process in step S <b> 14, the in-vehicle device ID is transmitted to the portable device 14. The portable device 14 receives the in-vehicle device ID in the sequence Q9, stores it in the storage device 24, and ends the registration process for the in-vehicle device 12 of the portable device 14.

  In the registration process of step S <b> 14, the in-vehicle device 12 further ends the registration mode and transmits registration completion information to the diagnostic device 20.

  In sequence Q <b> 10, the diagnostic device 20 that has received the registration completion information displays on the display 84 that the registration is completed.

  As a result, the series of processes is completed.

[Summary and modification]
The remote operation system 10 according to the embodiment described above is the remote operation system 10 that validates the operation of the portable device 14 for the vehicle after registering the ID of the portable device 14 in the in-vehicle device 12 included in the vehicle.

  When initially registering the ID of the portable device 14 in the in-vehicle device 12, the portable device 14 transmits a signal radio wave including the ID in order to register the ID in the in-vehicle device 12 (step S2, sequence Q4).

  The in-vehicle device 12 (in-vehicle device ECU 50) permits the registration when the received intensity RSSI of the signal radio wave including the received ID is equal to or higher than a threshold value Th1 stored in the threshold value setting unit 58 in advance. If it is less than Th1, the registration is rejected.

  In this way, at the time of initial registration in which the ID of the portable device 14 is first registered in the in-vehicle device 12, the in-vehicle device 12 (the in-vehicle device ECU 50) has the signal radio wave reception intensity RSSI including the ID from the portable device 14 as the threshold Th1. Since registration of the ID is permitted only in the case of the above, registration in a state where the reception strength RSSI is weak is rejected, thereby preventing erroneous registration of IDs of other portable devices located far away. be able to.

  In this case, the in-vehicle device 12 (the in-vehicle device ECU 50) uses the threshold Th1 of the reception intensity RSSI when receiving the signal radio wave including the ID, and the signal radio wave for operating the vehicle after registering the ID. A reception intensity RSSI threshold value setting unit 58 is set to a level higher than a threshold value (referred to as threshold value Thnorm). For this reason, while preventing the erroneous registration of the ID of another portable device located far away, the operation from a distance by the portable device 14 after the ID registration is permitted, and thus the convenience of the portable device 14 may be lost. Absent.

  If the initial registration of the ID is not completed within a predetermined time (step S6: NO, step S12: NO), the in-vehicle device 12 (in-vehicle device ECU 50) stops the registration sequence (step S7). Since it did in this way, consumption of useless electric power in the vehicle equipment 12 and the portable device 14 can be suppressed.

  The signal radio wave including the ID for initial registration of the ID is a signal radio wave (step S3, step S9) including the vehicle engine stop command signal and the ID by the portable device 14, so that the portable device It is possible to prevent the engine 64 and / or the fuel cell 66 from being erroneously started at the time of initial registration in the in-vehicle device 12 (the in-vehicle device ECU 50) with the ID of 14.

[Modification 1]
As shown in the waveform diagram of FIG. 5, the threshold setting unit 58 of the in-vehicle device 12 (in-vehicle device ECU 50) receives the threshold Th when receiving the signal radio wave including the ID (steps S3, S4, S5 and steps S9, S10). , S11) may be set from the threshold value Th1 to the maximum received intensity threshold value Thmax and then gradually lowered to the threshold value Th1 to receive the signal radio wave including the ID.

  By doing in this way, since the signal radio wave of the portable device 14 located closest to the in-vehicle device 12 can be received first, erroneous registration of IDs of other portable devices located far away can be prevented.

  For example, the reception intensity maximum threshold Thmax is set to the reception intensity RSSI when the distance between the reception antenna 72 of the in-vehicle device 12 and the transmission antenna 34 of the portable device 14 is a zero value (0 [m]). The transition time Ta that decreases from the maximum intensity threshold Thmax to the threshold Th1 is, for example, an appropriate time between 0.1 [s] ≦ Ta <5 [s]. In addition, 0.1 [s] is a time considering a human response delay.

[Modification 2]
As shown in the flowchart of FIG. 6, the determination “RSSI ≧ Th1” in step S11 in FIG. 3 is replaced with the determination “RSSI ≧ Thnorm” in step S11a.

  That is, the in-vehicle device 12 (in-vehicle device ECU 50) receives the first signal radio wave including the portable device ID (step S3) and stores the portable device ID in the storage device 54 (step S8), and then the portable device. When the next signal radio wave including the ID is received, the threshold Th1 that received the first signal radio wave including the portable device ID is lowered by the threshold setting unit 58 of the reception intensity RSSI, for example, lowered to the normal threshold Thnorm. The portable device ID is received and stored in the storage device 54. When both IDs (first and second received IDs) match, the ID of the in-vehicle device 12 is transmitted to the portable device 14 and the in-vehicle device 12 The ID registration process may be terminated.

  In this case, the threshold Thnorm of the reception intensity RSSI for the second signal radio wave transmitted from the portable device 14 is made smaller than the threshold Th1 of the reception intensity RSSI for the first signal radio wave transmitted from the portable device 14. Therefore, once the portable device ID is stored in the storage device 54, the second portable device ID can be received and registered more reliably.

  Note that the present invention is not limited to the above-described embodiment, and it is needless to say that various configurations can be adopted based on the contents described in this specification.

DESCRIPTION OF SYMBOLS 10 ... Remote operation system 12 ... In-vehicle machine 14 ... Portable machine 16, 18 ... Connector 20 ... Diagnostic machine 22 ... Portable machine ECU
50: On-board unit ECU 52 ... RFIC
55 ... Timer 56 ... Registration controller 58 ... Threshold setting device

Claims (8)

A remote operation system for enabling the operation of the portable device with respect to the vehicle after registering the ID of the portable device in an in-vehicle device included in the vehicle,
The portable device is
In order to register the ID in the in-vehicle device, a signal radio wave including the ID is transmitted,
The in-vehicle device is
The remote operation system, wherein the registration is permitted when the received intensity of the signal radio wave including the received ID is equal to or higher than a threshold value, and the registration is rejected when the received intensity is lower than the threshold value. The remote control system according to claim 1, wherein
The in-vehicle device is
A threshold setting for reception intensity that sets the threshold of the reception intensity when receiving the signal radio wave including the ID to a level higher than a normal threshold when receiving the signal radio wave for operation on the vehicle after registering the ID A remote control system comprising a vessel. The remote control system according to claim 1, wherein
The threshold setting device of the in-vehicle device is
The threshold value when receiving a signal radio wave including the ID is set to a maximum received intensity threshold value, and then the threshold value is varied to receive the signal radio wave including the ID after being lowered to the threshold value. Remote control system. The remote control system according to claim 1 or 2,
The in-vehicle device is
After receiving the first signal radio wave including the ID and storing the ID in a storage device, the next signal radio wave including the ID is received at the threshold value, and the ID is stored in the storage device. If the IDs match, the ID of the in-vehicle device is transmitted to the portable device, and the ID registration process of the in-vehicle device is terminated. The remote control system according to claim 1 or 2,
The in-vehicle device is
After receiving the first signal radio wave including the ID and storing the ID in the storage device, when receiving the next signal radio wave including the ID, the first signal radio wave including the ID is received by the threshold setting device for the reception intensity. When the received signal radio wave is received by lowering the threshold, the ID is stored in the storage device, and when both IDs match, the ID of the in-vehicle device is transmitted to the portable device and the ID of the in-vehicle device A remote control system characterized by terminating the registration process. In the remote control system according to any one of claims 1 to 5,
The in-vehicle device is
The remote operation system, wherein the registration sequence is stopped when the registration of the ID is not completed within a predetermined time. In the remote control system according to any one of claims 1 to 6,
The signal radio wave including the ID for registering the ID is a signal radio wave including a stop command signal for the engine of the vehicle by the portable device and the ID. In the remote control system according to any one of claims 1 to 6,
The signal radio wave including the ID for registering the ID is a signal radio wave including the stop command signal of the fuel cell of the vehicle and the ID by the portable device.

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