JP6459151B2 - Vehicle door lock control system - Google Patents

Description

  The present invention relates to a vehicle door lock control system.

  Depending on whether or not a receiving unit connected to a door lock mechanism of a vehicle can receive a signal periodically output by a portable device (also referred to as a portable key) possessed by the user, control of locking and unlocking of the vehicle door is performed. There is a door lock control system to perform.

  However, in the above system, when the battery of the portable device runs out or a failure occurs, the door is not automatically unlocked because the receiving unit does not receive a signal even when the user approaches the car. Therefore, the portable device has a function of detecting the battery state based on the measurement result by measuring the signal reception interval by increasing the signal transmission interval as the battery voltage is lower. An automobile door lock control system has been devised (see Patent Document 1).

Japanese Patent No. 3499806

  In the prior art, forgetting to lock the door can be prevented and battery consumption can be detected. However, in a situation where there are a plurality of passengers or the like around the vehicle and does not want to lock the door, the user who has the portable device cannot leave the vehicle. Usually, it is difficult to think that all the passengers have a portable device from the viewpoint of cost and management of the portable device.

  Against the background of the above problems, the present invention provides a vehicle door lock control system that allows a user holding a portable device (portable key) to leave the vehicle in a situation where the door is not desired to be locked. Objective.

A vehicle door lock control system for solving the above problems includes an in-vehicle device mounted on a vehicle, a mobile terminal possessed by a user, and a center. The in-vehicle device, the mobile terminal, and the center are mutually connected. Can communicate,
The in-vehicle device includes a state determination unit that determines the state of the vehicle and a position acquisition unit that acquires a current position of the vehicle. When the state determination unit determines that the vehicle is in a running state, When transmitting a search signal for searching for a mobile terminal and receiving a response signal in response to the search signal from the mobile terminal, the state determination unit determines that the vehicle has transitioned from the running state to the parked state. After transmitting the vehicle parking information including the terminal information reflecting the search result of the terminal and the vehicle position information reflecting the current position of the vehicle to the center and transmitting the vehicle parking information to the center, An output unit that outputs a control command for locking the door of the vehicle when receiving a door lock request for locking; and
The center includes a center determination unit that determines whether to lock the door of the vehicle based on the vehicle parking information received from the on-vehicle device, and when the center determination unit determines to lock the door of the vehicle, the on-vehicle device Send a door lock request to

  The portable terminal of the present invention may not have the function of a portable device (portable key). With the above configuration, in a situation where it is not desired to lock the door, the user who owns the portable device can leave the vehicle.

The figure which shows the structure of the door lock control system of a vehicle. The figure which shows the structure of a vehicle-mounted apparatus. The figure which shows the structure of a portable terminal. The flowchart which shows the door lock control process of a vehicle-mounted apparatus. The flowchart which shows the information transmission process of a portable terminal. The flowchart which shows another example of the information transmission process of FIG. The flowchart which shows the control processing of a center. The flowchart which shows another example of the control processing of FIG.

  As shown in FIG. 1, a vehicle door lock control system 100 includes an in-vehicle device 1 mounted on a vehicle 101, a portable terminal 2 possessed by a user, a center 3 provided separately from the in-vehicle device 1 and the portable terminal 2. The in-vehicle device 1, the mobile terminal 2, and the center 3 can communicate with each other.

  As shown in FIG. 2, the in-vehicle device 1 includes a control unit 11, an in-vehicle communication unit 16 and a short-range communication unit 17 connected to the control unit 11.

  The control unit 11 includes a known CPU 12 (state determination unit of the present invention), a memory 13 connected to the CPU 12, and an I / O 14 that is a signal input / output circuit (position acquisition unit, state acquisition unit, output unit of the present invention). )including. The memory 13 is composed of a nonvolatile storage medium such as a flash memory, for example, and stores a control program and data necessary for the operation of the in-vehicle device 1.

  The in-vehicle communication unit 16 communicates with the center 3 directly or via a public communication line. The near field communication unit 17 uses, for example, a known near field communication technology such as Bluetooth (registered trademark), proximity RFID, or NFC (Near Field Communication). Communication with the portable terminal 2 is performed using the short-range communication unit 17.

  A vehicle state detector 18 and a door lock device 19 are connected to the controller 11.

The vehicle state detection unit 18 is configured to detect at least one of the following states in the vehicle 101.
-Speed of vehicle 101: Detected by a well-known vehicle speed sensor.
・ Shift position: Detected with a well-known shift position switch.
・ Motor (engine or motor) status: Detects the speed of the prime mover, the state of the start switch that starts the prime mover, etc.
Door state: The door lock device 19 detects the locked / unlocked state and the open / closed state.
-Presence or absence of passengers in the passenger compartment: Detected by a seating sensor, seat belt switch, camera installed in the passenger compartment, etc.
-Parking brake status: Detected with a well-known parking brake switch.
Current position of the vehicle: A known GPS receiver that receives GPS signals is included, and the current position of the vehicle 101 is detected based on the received GPS signals.

  The door lock device 19 locks (locks) / unlocks (unlocks) the door based on a control command from the control unit 11 of the in-vehicle device 1. The door lock device 19 includes a controller, an actuator such as a motor, and a sensor that detects a locked / unlocked state.

  As shown in FIG. 3, the mobile terminal 2 includes a control unit 21 (calculation unit of the present invention), a memory 22 connected to the control unit 21, a position detection unit 23 (terminal position acquisition unit of the present invention), and terminal communication. Unit 24, short-range communication unit 25, operation unit 26, display unit 27, speaker 28, and vibrator 29.

  The control unit 21 is configured as a computer including a known CPU and peripheral circuits. The memory 22 is configured by a nonvolatile storage medium such as a flash memory, and stores data necessary for the operation of the mobile terminal 2 such as a program and an ID code for identifying the mobile terminal.

  The position detection unit 23 detects the current position of the mobile terminal 2 and includes, for example, a well-known GPS receiver. Moreover, the structure which acquires the positional information on these facilities from the center 3 or other facilities (for example, base station of a mobile telephone communication network), and considers it as the present position of the portable terminal 2 may be sufficient.

  The terminal communication unit 24 communicates with the center 3 directly or via a public communication line. The short-range communication unit 25 communicates with the vehicle-mounted device 1 with the same configuration as the short-range communication unit 17 of the vehicle-mounted device 1.

  The operation unit 26 is used by a user to perform an operation, and is used to execute a predetermined function of the mobile terminal 2. As the operation unit 26, a known mechanical switch, a touch panel formed on the display screen of the display unit 27, or the like is used. The display unit 27 includes a known LCD or organic EL display. The speaker 28 includes an acoustic signal (including audio signal) output circuit. The display unit 27, the speaker 28, and the vibrator 29 perform notification according to the operation state of the mobile terminal 2.

  As the portable terminal 2, a tablet-type terminal that is a portable information terminal that is equipped with a touch panel on a display portion such as a liquid crystal display and is operated with a finger may be used. The portable terminal 2 is a function of a portable device (portable key) such as a well-known remote keyless entry system or smart entry system, for example, a button for locking / unlocking a door, and a command (lock) according to the operation of the button. / Unlock) transmission function, a response signal transmission function including an ID code in response to a request signal from the in-vehicle device, and the like.

  Returning to FIG. 1, the center 3 includes a control unit 31 (center determination unit of the present invention), a memory 32 and a center communication unit 33 connected to the control unit 31.

  The control unit 31 is configured as a computer including a known CPU and peripheral circuits. The memory 32 is configured by a nonvolatile storage medium such as a flash memory, for example, and stores a program and data necessary for the operation of the center 3. The center communication unit 33 performs communication between the in-vehicle device 1 and the mobile terminal 2.

FIG. 4 shows a door lock control process stored in the memory 13 of the in-vehicle device 1 and executed by the CPU 12 at a predetermined timing. First, the vehicle state detected by the vehicle state detection unit 18 is acquired via the I / O 14 (S11). Next, based on the acquired vehicle state, it is determined whether or not the vehicle 101 is in a traveling state. The determination method uses at least one of the following.
When the vehicle speed exceeds a predetermined vehicle speed threshold value (for example, 10 km / h), it is determined that the vehicle is in a traveling state.
-It determines with it being in a driving | running | working state, when the rotation speed of a motor | power_engine exceeds a predetermined threshold value (for example, idle rotation speed).
-When the shift position is in the drive ("D") position, it is determined that the vehicle is in a traveling state.
-When the parking brake is not activated, it is determined that the vehicle is running.
You may acquire the information to the effect that the vehicle 101 is a driving | running | working state from the vehicle state detection part 18 or another apparatus.

When the vehicle 101 is not in the running state (S12: No), the process waits until the vehicle 101 enters the running state. On the other hand, when the vehicle 101 is in the traveling state (S12: Yes), it is determined whether or not the vehicle 101 has transitioned to the parking state. The determination method uses at least one of the following.
-It is determined that the vehicle is parked when the vehicle speed is 0 km / h.
・ Determine that the motor is parked when the prime mover is stopped.
When the shift position is in the parking (“P”) position, it is determined that the vehicle is in the parking state.
・ It is determined that the parking brake is in operation when the parking brake is in operation.

  When the vehicle 101 has not transitioned from the running state to the parked state (S13: No), the search for the portable terminal 2 is started (S14). That is, a search signal is transmitted from the short-range communication unit 17. When a response signal to the search signal is received from the mobile terminal 2 (S15: Yes), it is checked whether or not the mobile terminal 2 has been registered.

  In the memory 13, portable terminals to be searched are registered in advance. The registration is performed by operating the operation unit 26 of the mobile terminal 2, for example. At the time of registration, the identification information (or telephone number) of the portable terminal 2 is transmitted to the in-vehicle device 1 through the short-range communication unit 25 together with the registration request. The in-vehicle device 1 stores the identification information of the mobile terminal 2 in a predetermined area of the memory 13 when receiving the registration request via the short-range communication unit 17.

  Among the determination methods of the traveling state described above, it is desirable to include a determination method based on the vehicle speed. When searching for the portable terminal 2 existing in the room of the vehicle 101, there is a possibility that the portable terminal outside the passenger compartment is also detected when the vehicle 101 is stopped. However, if the detection is limited when the vehicle 101 is in the traveling state, the detection period of the portable terminal outside the passenger compartment becomes relatively short. Therefore, when a response signal is continuously received from the portable terminal for a predetermined time, it may be determined that the portable terminal is in the passenger compartment.

  When the mobile terminal 2 that has transmitted the response signal has been registered (S16: Yes), the mobile terminal 2 that has received the response signal among the mobile terminals to be searched is added to the stored terminal information (S17). Next, it returns to step S13 and searches for the portable terminal 2 until the vehicle 101 is parked.

  The above-described configuration is “terminal information includes only predetermined mobile terminals among mobile terminals that have transmitted response signals”. With this configuration, it is possible to exclude portable terminals owned by passengers other than the owner of the vehicle and family members (it is unlikely that the passenger will remain in the passenger compartment until the end), and the door can be locked more reliably.

  On the other hand, when the response signal for the search signal is not received (S15: No), or when the portable terminal 2 that has transmitted the response signal has not been registered (S16: No), the process returns to step S13, and the vehicle 101 is parked. Until then, the mobile terminal 2 is searched.

  Of course, you may add all the portable terminals which transmitted the response signal to terminal information.

  On the other hand, when the vehicle transitions from the traveling state to the parking state (S13: Yes), the transmission of the search signal from the short-range communication unit 17 is stopped, and the search for the portable terminal 2 is ended (S18). Next, the current position of the vehicle 101 included in the vehicle state is acquired (S19).

  Next, it is determined whether or not the vehicle 101 can communicate with the center 3. For example, a polling signal is transmitted to the center 3 via the in-vehicle communication unit 16, and the determination is made based on whether a response signal responding to the polling signal is received from the center 3 within a predetermined time.

  When the vehicle 101 is communicable with the center 3 (S19a: Yes), vehicle parking information including the terminal information and the current position is created (S20). Next, the created vehicle parking information is transmitted to the center 3 via the in-vehicle communication unit 16 (S21).

  After that, when receiving the door lock request from the center 3 and receiving the door lock request (S22: Yes), the control command to lock the door to the door lock device 19 via the I / O 14. Is output (S23).

  Next, the door lock state (which reflects the door state) is acquired from the door lock device 19 (S24). Next, the acquired door lock state is transmitted to the center 3 via the in-vehicle communication unit 16 (S25). Then, this process is complete | finished.

  The above-described configuration is “the in-vehicle device includes a state acquisition unit that acquires the lock state of the vehicle door, and transmits the lock state of the vehicle door acquired after the output unit outputs the control command to the center”. is there. With this configuration, the center can grasp whether or not the door of the vehicle has been securely locked.

  When the acquired door lock state is that the door is not normally locked, the control command may be output again (retry). When the door is not normally locked even after a predetermined number of retries, the door lock state reflects a retry failure.

  On the other hand, when the vehicle 101 cannot communicate with the center 3 (S19a: No), the search for the portable terminal 2 is started in the same manner as S14 (S26).

  When there is no response from the portable terminal (S27: No), it is determined whether or not the portable terminal is a registered portable terminal (that is, a search target stored in the memory 13). That is, it is determined whether or not the user who has the registered portable terminal is separated from the vehicle. When there is a response from the portable terminal or the registered portable terminal (S27: No or S28: No), the process returns to S27.

  On the other hand, when there is no response from the registered mobile terminal, that is, when all the users who have the registered mobile terminal are separated from the vehicle (S28: Yes), the search for the mobile terminal 2 is terminated (S29). ). Next, a control command is output to the door lock device 19 via the I / O 14 to lock the door (S30).

  Next, the door lock state (which reflects the door state) is acquired from the door lock device 19 (S31). Next, the acquired door lock state is transmitted to the center 3 via the in-vehicle communication unit 16 (S32). Although communication with the center 3 is impossible, there is a possibility that communication with the center 3 may be restored, so transmission (retry) is performed a predetermined number of times (for example, three times every 5 minutes). Then, this process is complete | finished.

  Steps S <b> 26 to S <b> 32 are: “The vehicle-mounted device determines that the vehicle has transitioned from the running state to the parked state, and when the vehicle cannot communicate with the center, a search signal for searching for a portable terminal is provided. When the response signal from the mobile terminal that transmits and responds to the search signal is no longer received, the output unit outputs a control command for locking the door of the vehicle. With this configuration, even when communication with the center is not possible, by detecting the separation of the passenger from the vehicle, the door of the vehicle can be locked even if the door lock request from the center cannot be received. It is possible to avoid the situation where the door cannot be locked even though it is separated.

  FIG. 5 shows information transmission processing executed by the control unit 21 of the mobile terminal 2. First, it is determined whether vehicle position information reflecting the current position of the vehicle 101 has been acquired. The vehicle position information may be acquired from the in-vehicle device 1 via the short-range communication unit 25, or what the in-vehicle device 1 transmits to the center 3 as vehicle parking information is transmitted from the center 3 via the terminal communication unit 24. You may get it.

  When the vehicle position information is acquired (S31: Yes), it enters a state of waiting for reception of door lock completion information (details will be described later) from the center 3. When the door lock completion information is received (S32: Yes), the content of the information is notified to the user by the message output from the display unit 27 or the speaker 28 or the vibration of the vibrator 29 (S40). Then, this process is complete | finished.

  On the other hand, when the door lock completion information is not received (S32: No), the current position of the mobile terminal 2 is acquired from the position detection unit 23 (S33). Next, the distance between the vehicle 101 and the portable terminal 2 is calculated based on the vehicle position information and the current position of the portable terminal 2 (S34). Next, it is determined whether or not the calculated distance exceeds a predetermined distance threshold (for example, 10 m).

  The distance threshold value may be set by an operation input of the operation unit 26 by the user. Moreover, you may set according to the present position of the acquired portable terminal 2. FIG. For example, when parked at home or in a residential area, the distance threshold is set small (for example, 2 to 3 m). When parked in a parking lot of a company or commercial facility, a large distance threshold is set (for example, several meters to several tens of meters). Accordingly, it can be accurately determined whether or not the mobile terminal is separated from the vehicle regardless of the distance between the destination and the parking lot.

  When the calculated distance exceeds the distance threshold (S35: Yes), it is checked whether or not the terminal separation information reflecting that the portable terminal 2 is separated from the vehicle 101 has been transmitted to the center 3. When the terminal separation information has been transmitted to the center 3 (S36: Yes), the process returns to step S32. On the other hand, when the terminal separation information has not been transmitted to the center 3 (S36: No), the terminal separation information is transmitted to the center 3 (S37), and the process returns to step S32.

  The above-described configuration is “the mobile terminal is a terminal position acquisition unit that acquires the current position of the mobile terminal, a calculation unit that calculates a distance between the current position of the vehicle included in the vehicle position information and the current position of the mobile terminal; The terminal separation information is transmitted to the center when the distance calculated by the calculation unit exceeds a predetermined distance threshold after receiving the vehicle position information from the center. With this configuration, the door can be locked when all the occupants carrying the portable terminal are separated from the vehicle (that is, get off). Further, since there is no need to make an inquiry from the center 3, the communication load on the center 3 can be reduced.

  On the other hand, when the calculated distance does not exceed the distance threshold (S35: No), it is checked whether the terminal separation information has been transmitted to the center 3. When the terminal separation information has been transmitted to the center 3 (S38: Yes), the terminal approach information reflecting that the mobile terminal 2 has approached the vehicle 101 is transmitted to the center 3 (S39), and the process returns to step S32. On the other hand, when the terminal separation information has not been transmitted to the center 3 (S38: No), the process returns to step S32.

  FIG. 6 shows another example of the information transmission process of FIG. The same processing steps as those in FIG. 5 are denoted by the same reference numerals, and detailed description thereof is omitted here. When the vehicle position information is acquired (S31: Yes), the information transmission request from the center 3 is awaiting reception. When the information transmission request is received (S321: Yes), the current position of the portable terminal 2 is acquired from the position detection unit 23 (S33).

  Next, the distance between the vehicle 101 and the portable terminal 2 is calculated (S34). When the calculated distance exceeds the distance threshold (S35: Yes), the terminal separation information is transmitted to the center 3 regardless of whether the terminal separation information has been transmitted to the center 3 (S37). On the other hand, when the calculated distance does not exceed the distance threshold (S35: No), the terminal reflecting that the mobile terminal exists in the vicinity of the vehicle regardless of whether or not the terminal separation information has been transmitted to the center 3 The approach information is transmitted to the center 3 (S39).

  The above-described configuration is as follows: “When the mobile terminal receives an information transmission request from the center, when the distance calculated by the calculation unit exceeds a predetermined distance threshold, the terminal separation information is transmitted to the center. When the calculated distance does not exceed the distance threshold, terminal approach information reflecting that the mobile terminal is present in the vicinity of the vehicle is transmitted to the center. With this configuration, the mobile terminal does not need to periodically transmit information to the center, the processing load / communication load can be reduced, and the communication volume between the mobile terminal and the center can also be reduced.

  FIG. 7 shows a control process executed by the control unit 31 of the center 3. First, it is checked whether vehicle parking information has been received from the in-vehicle device 1. When the vehicle parking information is received (S51: Yes), the timer 1 is started (S52). Next, the vehicle position information included in the received vehicle parking information is transmitted to all mobile terminals included in the terminal information such as the mobile terminal 2 via the center communication unit 33 (S53). Thereafter, the mobile terminal enters a state of waiting for reception of information (terminal separation information or terminal approach information) from the mobile terminal.

  Next, when terminal separation information is not received from all portable terminals (S54: No), it is checked whether or not the timer 1 has timed out. When the timer 1 does not time out (S61: No), the process returns to step S54 and waits for information from the portable terminal. On the other hand, when the timer 1 times out (S61: Yes), the process proceeds to step S57.

  The above-described configuration is “the center determination unit determines to lock the door when a predetermined time has elapsed after receiving the vehicle parking information from the in-vehicle device”. With this configuration, when all occupants do not have a portable terminal, when the occupant has left the portable terminal in the vehicle interior, or when communication between the center and the portable terminal is not possible, the vehicle door Can be locked to ensure security.

  On the other hand, when terminal separation information is received from all portable terminals (S54: Yes), the timer 2 is started (S55). Until the timer 2 times out (S56: No), the process returns to step S54 to check whether terminal separation information has been received from all the mobile terminals. This is because a mobile terminal once separated from the vehicle 101 may approach the vehicle 101.

  When the timer 2 times out (S56: Yes), or when the timer 1 times out (S61: Yes), the vehicle-mounted device 1 sends a door lock request for locking the door of the vehicle 101 via the center communication unit 33. (S57). After that, the system waits for reception of a result from the in-vehicle device 1.

  The above-described configuration is “the center determination unit determines that the door is locked when a predetermined time has elapsed after receiving the terminal separation information from all the mobile terminals included in the terminal information”. is there. With this configuration, it is possible to lock the door after confirming that all occupants are sufficiently away from the vehicle.

  The timer 2 may not be used. This configuration is “when the center receives the vehicle parking information from the in-vehicle device, the vehicle position information is transmitted to the mobile terminal included in the terminal information, and the center determination unit receives the information from all the mobile terminals included in the terminal information, When the terminal separation information reflecting that the portable terminal is separated from the vehicle is received, it is determined that the door of the vehicle is locked. With this configuration, the door can be locked when all the occupants carrying the portable terminal are separated from the vehicle (that is, get off).

  Next, the result for the door lock request is received from the in-vehicle device 1 (S58: Yes), and when the result means the completion of the door lock (S59: Yes), it indicates that the door lock is completed. The door lock completion information is transmitted to the corresponding portable terminal via the center communication unit 33 (S60).

  The door lock completion information may include information indicating that the door lock has failed (such as the above-mentioned retry failure) in addition to the information indicating that the door lock has been completed.

  The above-described configuration is “when the center receives the lock state of the door of the vehicle from the in-vehicle device, the lock state is transmitted to the mobile terminal”. With this configuration, the user who has the portable terminal can grasp the locked state of the door of the vehicle even if the user is away from the vehicle.

  FIG. 8 shows another example of the control process of FIG. Here, only the difference from FIG. 7 is shown. The same processing steps as those in FIG. 7 are denoted by the same reference numerals, and detailed description thereof is omitted here. After the vehicle position information is transmitted to all the mobile terminals included in the terminal information in step S53, it enters a state of waiting for reception of information (terminal separation information or terminal approach information) from the mobile terminal.

  Here, when terminal separation information is received from at least one mobile terminal (S531: Yes), an information transmission request for requesting information transmission is transmitted to the remaining mobile terminals included in the terminal information ( S532). On the other hand, when the terminal separation information is not received (S531: No), it is checked whether or not the timer 1 started in step S52 has timed out. When the timer 1 does not time out (S61: No), the process returns to step S531, and the reception waiting state of the terminal separation information from the portable terminal is continued.

  Step S532 described above is “when the center receives the terminal separation information from the portable terminal, it transmits an information transmission request to the portable terminal that has not transmitted the terminal separation information”. With this configuration, information can be acquired from the mobile terminal more quickly.

  The processes before step S53, after step S54, and after step S61 are the same as those in FIG.

  Although the embodiments of the present invention have been described above, these are merely examples, and the present invention is not limited to these embodiments, and the knowledge of those skilled in the art can be used without departing from the spirit of the claims. Various modifications based on this are possible.

1 In-vehicle device 12 CPU (state determination unit)
14 I / O (position acquisition unit, output unit, status acquisition unit)
2 mobile terminal 21 control unit (terminal position acquisition unit, calculation unit)
23 Position detection unit (terminal position acquisition unit)
3 Center 31 control unit (center determination unit)
100 Vehicle door lock control system

Claims (10)

An in-vehicle device mounted on a vehicle, a portable terminal possessed by a user, and a center, and the in-vehicle device, the portable terminal, and the center can communicate with each other,
The in-vehicle device is
A state determination unit for determining the state of the vehicle;
A position acquisition unit for acquiring a current position of the vehicle;
With
When the state determination unit determines that the vehicle is in a running state,
Transmitting a search signal for searching for a portable terminal in the vehicle interior, and receiving a response signal in response to the search signal from the portable terminal;
When the state determination unit determines that the vehicle has transitioned from the traveling state to the parking state,
Vehicle information including terminal information reflecting the search result of the mobile terminal and vehicle position information reflecting the current position of the vehicle is transmitted to the center;
An output unit that outputs a control command for locking the vehicle door when receiving a door lock request for locking the vehicle door from the center after transmitting the vehicle parking information to the center;
Further comprising
The center is
Based on the vehicle parking information received from the in-vehicle device, the center determination unit for determining whether to lock the door of the vehicle,
When the center determination unit determines to lock the door of the vehicle, the door lock request system is transmitted to the in-vehicle device. The center is
When the vehicle parking information is received from the in-vehicle device, the vehicle position information is transmitted to the mobile terminal included in the terminal information,
The center determination unit determines to lock the door of the vehicle when receiving terminal separation information reflecting that the portable terminal is separated from the vehicle from all the portable terminals included in the terminal information,
The portable terminal is
A terminal position acquisition unit for acquiring a current position of the mobile terminal;
A calculation unit that calculates a distance between the current position of the vehicle included in the vehicle position information and the current position of the mobile terminal;
With
2. The vehicle door lock according to claim 1, wherein after receiving the vehicle position information from the center, the terminal separation information is transmitted to the center when the distance calculated by the calculation unit exceeds a predetermined threshold. Control system.   3. The vehicle door lock control system according to claim 2, wherein, when the center receives the terminal separation information from the portable terminal, the center transmits an information transmission request to a portable terminal that has not transmitted the terminal separation information. When the mobile terminal receives the information transmission request from the center,
When the distance calculated by the calculation unit exceeds a predetermined distance threshold, the terminal separation information is transmitted to the center,
The vehicle door lock according to claim 3, wherein when the distance calculated by the calculation unit does not exceed the distance threshold, terminal approach information reflecting that the mobile terminal is present in the vicinity of the vehicle is transmitted to the center. Control system.   The center determination unit determines that the door is locked when a predetermined time has elapsed from reception of the terminal separation information from all portable terminals included in the terminal information. Item 5. The vehicle door lock control system according to any one of Items 4 to 6.   6. The vehicle door lock control system according to claim 1, wherein the terminal information includes only a predetermined mobile terminal among mobile terminals that transmitted the response signal. 7. The in-vehicle device is
When the state determination unit determines that the vehicle has transitioned from the running state to the parked state and cannot communicate with the center,
A control for transmitting a search signal for searching for the mobile terminal and responding to the search signal, when no response signal is received from the mobile terminal, the control for locking the door of the vehicle The vehicle door lock control system according to any one of claims 1 to 6, which outputs a command. The in-vehicle device is
A state acquisition unit for acquiring a lock state of the door of the vehicle;
The vehicle door lock control system according to any one of claims 1 to 7, wherein a lock state of the vehicle door acquired after the output unit outputs the control command is transmitted to the center.   The vehicle door lock control system according to claim 8, wherein the center transmits the lock state to the mobile terminal when receiving the lock state of the vehicle door from the in-vehicle device.   10. The center determination unit according to claim 1, wherein the center determination unit determines that the door is locked when a predetermined time has elapsed after receiving the vehicle parking information from the in-vehicle device. The vehicle door lock control system described in 1.

Images