JP2016211358A - Vehicle keyless entry system and on-vehicle device control method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lock and unlock a vehicle door in consideration of security.SOLUTION: When transmitting a reply requesting signal through each of a plurality of antennas in response to operation request for an on-vehicle device, an on-vehicle machine 30 transmits the same with an antenna ID of the antenna, which transmits the same, attached thereto. A portable machine (a main portable machine 10 or a sub-portable machine 11) transmits a transmission signal for reply with the antenna ID, attached to the received reply requesting signal, and a portable machine ID attached to the transmission signal for reply. The on-vehicle machine 30: refers to tables (a verification table 2021 and a positional condition table 2023) on the basis of the portable machine ID and the antenna ID attached to the returned transmission signal for reply; and activates the on-vehicle device for which the operation request is made when the antenna ID is the one satisfying an activation condition of the on-vehicle device for which the operation request is made and the portable ID is the one authorized to activate the on-vehicle device for which the operation request is made.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a vehicle keyless entry system and a control method for in-vehicle equipment.

As a keyless entry system for vehicles, the vehicle door is locked / unlocked when authentication is established between a portable device possessed by the user of the vehicle and an in-vehicle device mounted on the vehicle. There is.
Here, when all the doors of the vehicle are unlocked when the vehicle user performs an unlocking operation of the vehicle door by, for example, pressing the unlock button of the portable device, it is not preferable from the viewpoint of crime prevention. .
Therefore, in the first unlocking operation performed by the user, the driver's seat door is unlocked, and when the user performs the second unlocking operation continuously, all the remaining doors are unlocked. A keyless entry system has also been proposed.

  However, in the case of this keyless entry system, when there is a passenger, it is necessary to perform the unlocking operation of the vehicle door twice, and this operation itself is troublesome for the user.

  In Patent Document 1, a passenger's sub-portable device is separately prepared, and when the unlocking operation is performed by the sub-portable device, only the door associated with the sub-portable device can be unlocked. It is disclosed. As described above, when a plurality of portable devices can be used for one vehicle, the operation of the vehicle-mounted equipment according to the user who owns the portable device can be performed. Improvement can be expected.

JP 2008-81111 A

However, the technique described in Patent Document 1 is still insufficient from the viewpoint of user convenience. Specifically, according to the technique described in Patent Document 1, for example, even if an attempt is made to unlock another door that is not a door associated with the sub-portable device, the other door cannot be unlocked. However, there is annoyance that the user needs to perform the unlocking operation twice with the portable device.
Therefore, it is required to further improve user convenience by using a keyless entry system configured to perform communication between a portable device and an in-vehicle device mounted on a vehicle.

The present invention
A plurality of portable devices possessed by the user;
In a vehicle keyless entry system, which is mounted on a vehicle and has an in-vehicle device that controls communication with the portable device and operation of in-vehicle equipment,
The in-vehicle device is
A plurality of antennas associated one-to-one with the receivable area inside the vehicle and the receivable area outside the vehicle;
A reply request signal for requesting a reply to the in-vehicle device is generated at a predetermined timing, and when the reply request signal is transmitted from each of the plurality of antennas, the reply request signal is assigned to the antenna that transmits the reply request signal A control unit that adds an antenna ID, which is a unique identifier, to the reply request signal and transmits it;
The relationship between the portable device ID that is a unique identifier assigned to each portable device registered in the vehicle-mounted device, the relationship between the operation authority for the vehicle-mounted device, and the antenna ID that is the operation requirement of the vehicle-mounted device. A storage unit for storing a prescribed table,
The portable device is
When the reply request signal is received, a portable transmission control for generating a reply transmission signal and adding the antenna ID added to the received reply request signal and the portable machine ID to the transmission signal for transmission Part
The control unit of the in-vehicle device is
When receiving the transmission signal,
When the received transmission signal is a transmission signal transmitted from the portable device with respect to a reply request signal transmitted at a timing when the operation request for the in-vehicle equipment is received,
Refer to the table based on the portable device ID and the antenna ID added to the received transmission signal,
It is confirmed whether or not the operation of the in-vehicle equipment for which the antenna ID is an operation requirement is permitted with respect to the portable device ID, and when the operation is permitted, the in-vehicle equipment is authorized to operate. A keyless entry system for vehicles, which operates within the permitted range.

According to the present invention, for example, the on-vehicle equipment is a door lock device for a vehicle door, and on the table, the unlocking of the vehicle door is permitted for the portable device possessed by the driver and the portable device possessed by the passenger. When the vehicle door is unlocked, only the vehicle door near the driver and the passenger can be unlocked.
Therefore, since all the vehicle doors are not unlocked by the unlock request of the vehicle door, the crime prevention property is improved.
In addition, the vehicle door that can be unlocked by the portable device possessed by the passenger is not limited to a specific vehicle door, and multiple requests for unlocking the vehicle door are required for boarding the passenger's vehicle. There is no need to do it.
Thereby, the convenience of the user who possesses a portable device further improves.

It is a figure which shows arrangement | positioning in the vehicle of the keyless entry system for vehicles. It is a block diagram explaining the structure of a main portable machine. It is a block diagram explaining the structure of a sub portable machine. It is a block diagram explaining the structure of a vehicle equipment. It is a figure showing an example of composition of a collation table, a position information table, and a position condition table. 5 is a flowchart of main processing performed by the control unit of the main portable device and the sub portable device. It is a flowchart of a main portable machine process. It is a flowchart of a sub portable machine process. It is a flowchart explaining the main process implemented in the control part of vehicle equipment. It is a flowchart explaining a keyless process. 5 is a flowchart illustrating door unlock processing in keyless processing. It is a flowchart explaining the detail of a power supply transition process. It is a flowchart explaining a child lock process. It is a flowchart explaining other processing. It is a flowchart explaining other processing. It is the figure which showed the example of a structure of the collation table in another process, and a position information table. It is the figure which showed the structural example of the collation table in another process. It is a flowchart explaining other processing.

  Hereinafter, an embodiment of a keyless entry system for a vehicle will be described in detail with reference to the drawings.

FIG. 1 is a diagram illustrating an arrangement of a vehicle keyless entry system (hereinafter referred to as a keyless system K) according to the present embodiment in a vehicle.
FIG. 2 is a block diagram illustrating the configuration of the main portable device 10.
FIG. 3 is a block diagram illustrating the configuration of the sub portable device 11.
FIG. 4 is a block diagram illustrating the configuration of the in-vehicle device 30.

As shown in FIG. 1, the keyless system K includes an in-vehicle device 30 disposed inside the vehicle 1, a main portable device 10 carried by the driver, and a sub portable device 11 carried by the passenger. In this keyless system K, for example, when there is an operation instruction for in-vehicle equipment, the on-vehicle equipment is provided on the condition that authentication is established between the in-vehicle equipment 30 and the main portable equipment 10 and / or the sub-mobile equipment 11. The operation of the equipment is configured to be controlled.
In addition, the number and positions of portable devices (users who own portable devices) inside and outside the vehicle 1 are confirmed every predetermined time, and predetermined processing is performed according to the confirmed number and positions of portable devices. ing.

In the keyless system K, a long wave generated in the in-vehicle device 30 from the door antennas 22a to 22d, the trunk antenna 22e, the indoor front seat antenna 24a, and the rear seat antenna 24b connected to the in-vehicle device 30. Band signals (hereinafter referred to as LF signals) are transmitted toward the reception area of each antenna.
This LF signal is a transmission signal (transmission signal as a reply to be described later) to the received portable device (main portable device 10, sub-portable device 11) in order to confirm the presence or absence of the portable device inside or outside the vehicle. This is a reply request signal for requesting transmission.
In the following description, when these antennas are not distinguished, they are simply labeled as antennas 22a to 22e, 24a, and 24b.

The front seat antenna 24a and the rear seat antenna 24b are respectively installed in the front seat and the rear seat in the vehicle. The receivable range of the LF signal transmitted from the front seat antenna 24a is set to a range that can be received by the portable device possessed by the passenger seated in the front seat, and the LF signal transmitted from the rear seat antenna 24b. The receivable range is set to a range that can be received by a portable device possessed by a passenger seated in the rear seat.
The driver's seat antenna 31 is a receiver with a built-in antenna that receives a high-frequency signal (RF signal) transmitted from a portable device.

The door antennas 22a to 22d are installed around the operation knob of the vehicle door, and the receivable range of the LF signal transmitted from the door antennas 22a to 22d is the communication area AL in the vicinity of the vehicle door outside the vehicle. Is set.
The trunk antenna 22e is installed around the trunk operation knob, and the receivable range of the LF signal transmitted from the trunk antenna 22e is set to the communication area AL in the vicinity of the trunk outside the vehicle. .
Here, since the receivable range of the LF signal transmitted from the antenna is within a limited range based on the antenna, the receivable ranges of the respective antennas are set so as not to overlap greatly.

The antennas 22a to 22e, the front seat antenna 24a, and the rear seat antenna 24b are associated one-to-one with the receivable ranges set inside and outside the vehicle, and the LF signal transmitted from each antenna In order to be able to specify which antenna is the antenna that transmitted the LF signal, a unique identifier (antenna ID) assigned to each antenna is added.
The antenna ID is used as position information for specifying the position inside and outside the vehicle of the user (driver, passenger) carrying the portable device (main portable device 10, sub-mobile device 11). Yes.

[Main portable device 10]
In the main portable device 10, an unlock switch 10a, a lock switch 10b, and a panic alarm switch 10c are provided on one surface of the main body.

As shown in FIG. 2, the main portable device 10 includes a control unit 301 and a storage unit 302, and the control unit 301 is a CPU (central processing) that is an arithmetic device.
unit).

The storage unit 302 includes an information storage medium such as a flash memory that is a non-volatile memory, a read-only memory (ROM), and a random-access memory (RAM).
The storage unit 302 stores a unique identifier (mobile device ID) assigned to the main mobile device 10.

  The control unit 301 includes an LF receiving unit 303, a lock switch input interface 305 (hereinafter, the interface is described as I / F), an unlock switch input I / F 306, a panic alarm switch input I / F 307, The RF transmission unit 304 is connected.

  An antenna 303 a for receiving an LF signal (reply request signal) transmitted from the in-vehicle device 30 is connected to the LF receiver 303.

  The lock switch input I / F 305 is connected to a lock switch 10b that is operated when instructing to lock the door lock device. The lock switch input I / F 305 is operated when the lock switch 10b is operated. A 10 b ON signal (lock signal) is generated and output to the control unit 301.

  The unlock switch input I / F 306 is connected to an unlock switch 10a that is operated when instructing unlocking of the door lock device. The unlock switch input I / F 306 is operated by operating the unlock switch 10a. Then, an ON signal (unlock signal) of the unlock switch 10 a is generated and output to the control unit 301.

The panic alarm switch input I / F 307 is connected to a panic alarm switch 10c that is operated when instructing the operation of the panic alarm device. The panic alarm switch input I / F 307 is continuously operated by the panic alarm switch 10c. If it continues for a predetermined time or longer, an ON signal (panic signal) of the panic alarm switch 10 c is generated and output to the control unit 301.
Here, the requirement that the operation of the panic alarm switch 10c continues continuously for a predetermined time or more is to prevent generation of a panic signal when the panic alarm switch 10c is operated by mistake. It is.

  The control unit 301 includes an LF signal from the LF receiving unit 303, a lock signal from the lock switch input I / F 305, an unlock signal from the unlock switch input I / F 306, and a panic alarm switch input I / F 307. Panic signal is input.

The control unit 301 acquires the antenna ID added to the LF signal (reply request signal) input from the LF reception unit 303 and acquires the portable device ID of the main portable device 10 from the storage unit 302.
Then, the control unit 301 generates a return transmission signal to which the portable device ID and the antenna ID are added, and outputs the response transmission signal to the RF transmission unit 304.

Here, the antenna ID is a unique identifier assigned to each of the antennas on the in-vehicle device 30 (driver's seat antenna 31, indoor antennas 24a and 24b, door antennas 22a to 22d, trunk antenna 22e). is there.
In the keyless system K, when the reply request signal transmitted from the in-vehicle device 30 is received, the received reply request signal is transmitted from which antenna by referring to the antenna ID added to the received reply request signal. Whether it is a reply request signal can be specified.

Therefore, by adding the antenna ID to the transmission signal transmitted by the main portable device 10 that has received the reply request signal, on the in-vehicle device 30 side that has received the transmission signal, the main portable device 10 that has transmitted the transmission signal determines which antenna. It is possible to specify whether a transmission signal has been transmitted based on a reply request signal transmitted from.
In the embodiment, by referring to the antenna ID added to the transmission signal, the position of the user who owns the main portable device 10 that has transmitted the transmission signal can be specified.

  When a lock signal is input from the lock switch input I / F 305, the control unit 301 generates a command (door lock command) for instructing locking of the door lock device (door lock command) and the portable device of the main portable device 10. The ID is acquired from the storage unit 302. Then, a transmission signal in which the portable device ID is added to the generated command is generated and output to the RF transmission unit 304.

  When an unlock signal is input from the unlock switch input I / F 306, the control unit 301 generates a command (door unlock command) for instructing unlocking of the door locking device (door unlocking command), and the main mobile phone. The portable device ID of the device 10 is acquired from the storage unit 302. Then, a transmission signal in which the portable device ID is added to the generated command is generated and output to the RF transmission unit 304.

  When a panic signal is input from the panic alarm switch input I / F 307, the control unit 301 generates a command (panic alarm command) for instructing the operation of the panic alarm device, and sets the portable device ID of the main portable device 10 as Obtained from the storage unit 302. Then, a transmission signal in which the portable device ID is added to the generated command is generated and output to the RF transmission unit 304.

  The RF transmission unit 304 transmits the transmission signal input from the control unit 201 via the transmission antenna 304a.

[Sub mobile device]
As shown in FIG. 3, the sub portable device 11 is different from the main portable device 10 in that it does not include the unlock switch 10a, the lock switch 10b, and the panic alarm switch 10c included in the main portable device 10. doing.

  In the keyless system K according to the embodiment, a plurality of sub-portable devices 11 are registered with the in-vehicle device 30 as usable portable devices, and the portable devices stored in the storage unit 402 of each sub-portable device 11 are used. The ID is different for each portable device.

The sub portable device 11 has only a function of returning a reply transmission signal when a reply request signal transmitted from the in-vehicle device 30 is received.
Therefore, in the sub portable device 11, when the LF reception unit 403 receives the reply request signal transmitted from the in-vehicle device 30 via the antenna 403a, the control unit 401 includes the antenna ID added to the reply request signal, A return transmission signal to which the portable device ID of the sub portable device 11 is added is generated, and the generated transmission signal is transmitted from the antenna 404 a connected to the RF transmission unit 404 toward the in-vehicle device 30. It has become.

[In-vehicle device]
FIG. 4 is a block diagram illustrating the configuration of the in-vehicle device 30.
FIG. 5 is a diagram showing a configuration example of the collation table 2021, the position information table 2022, and the position condition table 2023.

As shown in FIG. 4, the in-vehicle device 30 includes a control unit 201 and a storage unit 202, and the control unit 201 includes a CPU that is an arithmetic device.
The storage unit 202 includes an information storage medium such as a flash memory, a ROM, or a RAM that is a nonvolatile memory.

The storage unit 202 stores a collation table 2021, a position information table 2022, and a position condition table 2023.
In the collation table 2021, the portable device ID of the portable device (the main portable device 10 and the sub portable device 11) registered as a portable device that can be used in the in-vehicle device 30, the operation authority for the in-vehicle device, and the operation setting of the in-vehicle device. The relationship is defined. Furthermore, the relationship (occupant type classification information) between the position of the portable device (main portable device 10, sub-portable device 11) specified by the portable device ID inside and outside the vehicle (position information) and the information of the user who owns the portable device. It is registered.
The occupant type classification information includes a portable device (main portable device 10, sub-portable device 11) that can be used in the in-vehicle device 30, a portable device used by a non-management target person (for example, an adult or a parent), and a management target person ( For example, it is information for specifying which of the portable devices possessed by the child).
In the embodiment, the control unit 201 of the in-vehicle device 30 includes a portable device (main portable device 10, sub-portable device 11), a portable device (portable device ID “01”) owned by an adult or a parent, and a child. The portable device (mobile device ID “02”, “05”, “06”) to be identified can be identified by referring to the occupant type classification information.

  Further, in the collation table 2021, the radio field intensity of the transmission signal returned from the portable device (the main portable device 10 and the sub portable device 11) is registered.

As shown in FIG. 5, in the collation table 2021, the operation authority for engine start, power switching (switching to the power supply position, etc.), audio operation, air-conditioner operation, etc., and child lock operation settings are set for each portable device ID. Is remembered.
For example, since the engine start is “permitted” for the portable device ID “01”, the user who owns the portable device with the portable device ID “01” is a user who is permitted to start the engine. It can be specified from this collation table 2021.

In addition, since the child lock is “ON” for the portable device ID “05”, the user who owns the portable device with the portable device ID “05” is the user who activates the child lock. It can be specified from this collation table 2021.
Here, the child lock is a function that prevents the door from being opened even if the user who operates the child lock operates the inside door handle of the door.

For example, the operation authority and the operation setting defined in the collation table 2021, the change of the occupant type classification information, and the addition / deletion of the portable device ID registered in the collation table 2021 are performed by, for example, a car navigation device mounted on the vehicle. It can be done via an input interface.
The position information in the collation table 2021 needs to be changed in the position information associated with the portable device ID as a result of main processing (see step 1303 in FIG. 9) executed by the control unit 201 described later. It is designed to be updated if

In the position information table 2022, the relationship between the antenna ID of the antenna (front seat antenna 24a, rear seat antenna 24b, door antennas 22a to 22d, trunk antenna 22e) connected to the vehicle-mounted device 30 and the position inside and outside the vehicle. Is defined based on the receivable range of the LF signal (reply request signal) transmitted from each antenna.
For example, the receivable range of the LF signal (reply request signal) transmitted from the front seat antenna 24a is set so as to be received only by a portable device possessed by a user seated in the front seat (driver's seat and front passenger seat). Therefore, the ID (A001) of the front seat antenna 24a is related to the position information having the content “in-vehicle_front seat”.

  In the position condition table 2023, the relationship between the operation content of the in-vehicle equipment and the operation requirement is defined. In the embodiment, the antenna ID associated with the position inside and outside the vehicle is used as the operation requirement.

  For example, in order to start the engine, the user possessing the portable device having the authority to start the engine (main portable device (portable device ID “01”)) needs to be seated in the front seat. For “startup”, an antenna ID “A001” related to “inside_front seat” is defined as an indispensable condition.

  An RF receiving unit 203, a door request input I / F 207, and an input I / F 230 are connected to the control unit 201.

  The RF receiving unit 203 is connected to an RF antenna 204 for receiving an RF signal (transmission signal) transmitted from the portable device (the main portable device 10 and the sub portable device 11). The RF signal (transmission signal) received via the RF antenna 204 is amplified, converted, and demodulated, and the demodulated transmission signal is output to the control unit 201.

  A door request switch 208 that is operated when instructing locking / unlocking of the door lock device is connected to the door request input I / F 207, and the door request switch 208 is operated as the door request input I / F 207. Then, an ON signal (door request signal) of the door request switch 208 is generated and output to the control unit 201.

  Various switches 231 such as an engine start button, a power supply switch, an audio operation switch, an air conditioner operation switch, and the like 231 are connected to the input I / F 230, and the input I / F 230 is operated when various switches are operated. A switch operation signal is generated and output to the control unit 201.

Further, a buckle switch is connected to the input I / F 230 as one of various switches 231. The buckle switch is provided in the buckle portion of the seat belt of the vehicle. When the tongue plate of the seat belt is attached to the buckle, an electric signal of a predetermined level (for example, 5 VDC) is controlled via the input I / F 230. Output to the unit 201.
And the control part 201 determines with the seat belt being used (wearing), when the electric signal output from the back switch is received via input I / F230.

Further, an ignition switch 250 is connected to the input I / F 230.
The ignition switch 250 outputs a signal corresponding to the selected position of the switch to the control unit 201 via the input I / F 230. In the ignition switch 250 according to the embodiment, an off position (OFF position), a power supply position (ACC position), and an engine drive position (START position) are set as selection positions. For example, when the START position is selected. A signal indicating that the selected position is the START position is output to the control unit 201 via the input I / F 230.

  The control unit 201 receives a door request signal from the door request input I / F 207, an RF signal (transmission signal) from the RF reception unit 203, and an operation signal from the input I / F 230.

When the transmission signal is input from the RF reception unit 203, the control unit 201 acquires the portable device ID added to the input transmission signal, and refers to the collation table 2021 based on the acquired portable device ID.
And when acquired portable machine ID is portable machine ID registered into the vehicle equipment 30, and the operation instruction (command) of vehicle equipment is added to the input transmission signal, it is based on the added command. To control the operation of the in-vehicle equipment specified by the command.

When the door request signal is input from the door request input I / F 207 and the operation signal is input from the input I / F 230, the control unit 201 generates a reply request signal and outputs it to the LF transmission unit 205. This is for checking whether or not the portable device (main portable device 10 and sub-portable device 11) with the portable device ID having the authority to operate the on-vehicle equipment exists inside and outside the vehicle.
At this time, a unique identification number (antenna ID) of the antenna that transmits the reply request signal is added to the reply request signal transmitted from each of the antennas 22a to 22e, 24a, and 24b. This is because the portable device (the main portable device 10 and the sub portable device 11) that has received the reply request signal can specify which antenna has received the reply request signal.

  Further, the control unit 201 confirms whether or not the portable device (the main portable device 10 and the sub portable device 11) having the ID registered in the in-vehicle device 30 (collation table 2021) exists inside and outside the vehicle. Then, a reply request signal to which an antenna ID is added is generated every predetermined time interval (timing) set in advance, and is output to the LF transmitter 205.

When the portable device ID and the antenna ID are added to the transmission signal input from the RF receiving unit 203, the control unit 201 uses the position information of the portable device ID registered in the matching table 2021 as the transmission signal. Is updated with the position information specified by the antenna ID added to.
Specifically, with reference to FIG. 5, when the portable device ID added to the input transmission signal is “02” and the antenna ID is “B005”, the antenna ID “ Since “B005” is related to “outside_trunk door”, the control unit 201 uses the location information (see FIG. 5A) of the portable device ID “02” in the matching table 2021 as “inside_ Update from "front seat" to "outside car trunk door".
Thereby, the position information of the collation table 2021 is periodically updated based on the transmission signal returned from the portable device that has received the reply request signal transmitted periodically.

  In the embodiment, a door lock actuator 210 that locks / unlocks the door lock device, a horn 212, a hazard lamp 214, a door lock I / F 209, a horn I / F 211, and a hazard I / F 213 Are connected to the control unit 201, and the horn 212 and the hazard lamp 214 serve as a panic alarm device.

  When the door lock I / F 209 is instructed to lock / unlock the vehicle door, the door lock I / F 209 drives the door lock actuator 210 of the instructed vehicle door to bring the vehicle door into a locked / unlocked state.

  When the horn 212 is instructed to ring, the horn I / F 211 generates a drive signal for ringing the horn 212 and outputs it to the horn 212. Thereby, the horn 212 outputs a ringing sound based on the input drive signal.

  The hazard I / F 213 generates a blink signal that causes the hazard lamp 214 to blink based on the control signal input from the control unit 201, and outputs the blink signal to the hazard lamp 214. The hazard lamp 214 blinks based on the inputted blink signal.

  Further, a driver position adjustment unit (hereinafter, ADP unit 216), an air conditioner unit 218, a car navigation / audio 219, and an engine controller 220 are connected to the control unit 201 via a communication I / F 215.

The ADP unit 216 generates a drive signal for the seat adjustment actuator 217 based on an instruction input from the control unit 201 and outputs the drive signal to the seat adjustment actuator 217.
Thereby, the seat adjustment actuator 217 adjusts the position, angle, height, etc. of the seat based on this drive signal.

  The air conditioner unit 218 changes various settings of the air conditioner based on a control signal input from the control unit 201 and performs air conditioning.

The car navigation / audio 219 operates based on a control signal input from the control unit 201.
The car navigation / audio 219 includes an input / output device that inputs and outputs information such as a touch panel, displays an output signal from the control unit 201, and outputs the input information to the control unit 201.

  The engine controller 220 controls the engine according to a control signal from the control unit 201.

  The indicator 221 is an indicator lamp (warning lamp) disposed in an instrument panel section in the vehicle, and is turned on or off based on a control signal from the control section 201. The indicator 221 is composed of an LED or the like.

  The buzzer 222 is arranged in the vehicle, and outputs a ringing sound based on a drive signal transmitted from the control unit 201 to instruct the ringing of the buzzer 222.

In addition, an ignition switch 250 of the vehicle is connected to the control unit 201 via an input I / F 230. The ignition switch 250 outputs an operation signal (ON / OFF signal) corresponding to the rotational position (position). When the ignition switch 250 is rotated by the user, the operation signal (ON / OFF) corresponding to the position is output. OFF signal) is output from the ignition switch 250.
The operation signal (ON / OFF signal) output from the ignition switch 250 is input to the control unit 201 via the input I / F.

  Further, the control unit 201 incorporates a sensor (not shown) that measures the radio wave intensity of a transmission signal (high frequency signal (RF signal)) returned from the portable device (the main portable device 10 and the sub portable device 11). The control unit 201 determines whether or not the radio wave intensity of the transmission signal measured by this sensor is less than a predetermined threshold intensity.

Further, an LF antenna 206 provided outside the in-vehicle device 30 is connected to the LF transmission unit 205 connected to the control unit 201.
The LF transmission unit 205 modulates and transmits the reply request signal generated by the control unit 201.

  Next, the process performed by the portable device (the main portable device 10 and the sub portable device 11) and the vehicle-mounted device 30 that configure the keyless system K according to the embodiment will be described.

[Main processing]
Hereinafter, main processes performed by the control unit 301 of the main portable device 10 and the control unit 401 of the sub portable device 11 will be described.
The sub portable device 11 is different from the main portable device 10 in that it does not include the unlock switch 10a, the lock switch 10b, and the panic alarm switch 10c provided in the main portable device 10.
Therefore, since the main process performed by the control unit 301 of the main portable device 10 and the control unit 401 of the sub portable device 11 is the same, the main processing by the control unit 401 of the sub portable device 11 is different. Explain as necessary.

  FIG. 6 is a flowchart of main processing performed by the control unit 301 of the main portable device 10 and the control unit 401 of the sub portable device 11.

As shown in FIG. 6, the control unit 301 of the main mobile device 10 and the control unit 401 of the sub mobile device 11 perform initial processing in step 1001 when a driving battery is set.
In this initial processing, initialization processing of parameters used for processing in the control units 301 and 401 is performed. Note that the processing in step 1001 is executed when the battery for driving the portable device (the main portable device 10 and the sub portable device 11) is replaced, or when a reset button (not shown) is pressed.

  Subsequently, in step 1002, the control units 301 and 401 shift to the sleep mode. This is to suppress the consumption of the driving battery.

In step 1003, the control units 301 and 401 confirm whether there is an interrupt.
In the embodiment, in the case of the main portable device 10, the interruption in step 1003 is (a) caused by operation of the operation switches (unlock switch 10 a, lock switch 10 b, panic alarm switch 10 c) of the main portable device 10. And (b) an interrupt that is executed at predetermined time intervals. In the case of the sub portable device 11, there is (b) an interrupt that is executed at predetermined time intervals.
As described above, the sub portable device 11 is different from the main portable device 10 in that it does not include the unlock switch 10a, the lock switch 10b, and the panic alarm switch 10c included in the main portable device 10. Because.

  If there is no interrupt (No in step 1003), the sleep mode is maintained until interrupt processing is performed.

If there is an interrupt (step 1003, Yes), the process proceeds to step 1004, and the control units 301 and 401 cancel the sleep mode.
Thereby, control part 301,401 transfers to the operation mode which performs various processes including operation | movement of vehicle equipment.

  Then, in step 1005 after shifting to the operation mode, the control units 301 and 401 execute corresponding processing described later, and then return to the processing of step 1002 to perform the portable device (the main portable device 10 and the sub portable device 11). The mode is changed from the operation mode to the sleep mode.

As described above, the portable device (the main portable device 10 and the sub portable device 11) waits in the sleep mode until the interruption process is performed. When the interruption process is performed, the portable device (the portable portable device 10 and the sub portable device 11) shifts to the operation mode. After executing various processes in the main portable device 10 and the sub portable device 11), the sleep mode is set again.
Therefore, as long as interrupt processing is not performed, consumption of the driving battery is suppressed by waiting in the sleep mode.

Next, a process (main portable machine process) executed in step 1005 in the main process (FIG. 6) and executed by the control unit 301 of the main portable machine 10 will be described.
FIG. 7 is a flowchart of main mobile device processing.

In step 1101, the control unit 301 confirms whether or not the operation switches (unlock switch 10a, lock switch 10b, panic alarm switch 10c) of the main portable device 10 have been operated.
This is for confirming whether or not the processing has been performed by an interruption caused by the operation of the operation switch.

When the operation switch is operated (step 1101, Yes), the control unit 301 executes processing corresponding to the operated switch (step 1102 to step 1104).
In particular,
(1) When the unlock switch 10a is operated, the control unit 301 generates a command (door unlock command) for instructing unlocking of the door lock device, and adds the command to the main portable device 10 to the generated command. A transmission signal to which the assigned portable device ID is added is generated and transmitted from the RF transmission unit 304 (step 1102).
(2) When the lock switch 10b is operated, the control unit 301 generates a command (door lock command) for instructing locking of the door lock device, and the generated command is assigned to the main portable device 10 A transmission signal with the portable device ID added is generated and transmitted from the RF transmission unit 304 (step 1103).
(3) When the panic alarm switch 10c is operated, the control unit 301 generates a command (panic alarm command) for instructing the operation of the panic alarm device, and the generated command is assigned to the main portable device 10. A transmission signal to which the portable device ID is added is generated and transmitted from the RF transmission unit 304 (step 1104).

  When the operation switch is operated (step 1101, Yes), the operated switch is identified based on whether the lock signal, the unlock signal, or the panic signal is input to the control unit 301. .

  When the operation switch is not operated (No at Step 1101), the control unit 301 confirms at Step 1105 whether or not a reply request signal has been received.

  When the reply request signal is received (step 1105, Yes), the control unit 301 generates a transmission signal in which the antenna ID added to the reply request signal and the portable device ID of the main portable device 10 are added. Then, the generated transmission signal is RF-transmitted (step 1106).

  When the reply request signal has not been received (step 1105, No), the main portable device process is terminated.

Next, a process (sub portable machine process) executed in step 1005 in the main process (FIG. 6) and executed by the control unit 401 of the sub portable machine 11 will be described.
FIG. 8 is a flowchart of the sub portable device processing.

In step 1201, the control unit 401 confirms whether a reply request signal has been received.
Whether or not a reply request signal has been received is determined based on whether or not the reply request signal is included in the LF signal input from the LF receiver 403.

  When the reply request signal is received (step 1201, Yes), the control unit 401 transmits the reply transmission signal to which the antenna ID added to the reply request signal and the portable device ID of the main portable device 10 are added. And RF transmission of the generated transmission signal (step 1202).

  If the reply request signal has not been received (step 1201, No), the sub portable device processing is terminated.

[Main processing of in-vehicle device 30]
Next, a description will be given of the main process performed by the control unit 201 of the in-vehicle device 30 in the in-vehicle device 30 that receives a transmission signal transmitted from the portable device (the main portable device 10 and the sub-portable device 11). To do.
FIG. 9 is a flowchart illustrating the main process performed by the control unit 201 of the in-vehicle device 30.

As shown in FIG. 9, when power for driving is supplied to the control unit 201 of the in-vehicle device 30, initial processing is executed in step 1301.
In this initial processing, initialization processing of parameters used for processing in the control unit 201 is performed.

  Subsequently, in step 1302, the control unit 201 shifts to the sleep mode. This is to reduce power consumption.

In step 1303, the control unit 201 confirms whether an interrupt has occurred.
In the embodiment, the interrupts in step 1303 include (a) an interrupt caused by the operation of the door request switch 208 (input of a door request signal), (b) an interrupt executed at predetermined time intervals, and (c ) There are interruptions caused by operations of various switches 231 (inputs of operation signals of various switches).
Here, (b) an interrupt executed at predetermined time intervals periodically transmits an LF signal, and (i) a portable device around the vehicle-mounted device 30 (inside or outside the vehicle) (main portable device 10, In order to confirm the presence / absence of the sub portable device 11), (ii) it is performed to confirm the presence / absence of a transmission signal from the portable device (the main portable device 10, the sub portable device 11).

  If there is no interrupt (No at step 1303), the sleep mode is maintained until interrupt processing is performed.

If there is an interrupt (Yes at Step 1303), the process proceeds to Step 1304, and the control unit 201 cancels the sleep mode.
Thereby, the control part 201 transfers to the operation mode which performs various processes including operation | movement of vehicle equipment.

  Then, the control unit 201 that has shifted to the operation mode sequentially executes keyless processing (step 1305), power supply transition processing (step 1306), child lock processing (step 1307), and other processing (step 1308), in order. Returning to the processing of 1302, the mode of the in-vehicle device 30 is changed from the operation mode to the sleep mode.

As described above, the in-vehicle device 30 waits in the sleep mode until the interrupt processing is performed, and when the interrupt processing is performed, the in-vehicle device 30 shifts to the operation mode and executes various processes in the in-vehicle device 30 and then again. Enter sleep mode.
Hereinafter, each processing of step 1305 to step 1308 will be described in order.

[Keyless processing]
Next, details of the keyless process (step 1305) in the main process (FIG. 9) will be described.
FIG. 10 is a flowchart for explaining keyless processing performed by the control unit 201 of the in-vehicle device 30.

In step 1401, the control unit 201 generates a reply request signal and transmits the generated reply request signal from each antenna.
It should be noted that the antenna ID of the antenna that has transmitted the reply request signal is added to the reply request signal transmitted from each antenna.

In step 1402, the control unit 201 confirms whether or not a transmission signal returned from the mobile device (main mobile device 10, sub mobile device 11) that has received the reply request signal has been received.
When the transmission signal is received (step 1402, Yes), in step 1403, the control unit 201 acquires the portable device ID added to the received transmission signal. Then, based on the acquired portable device ID, the collation table 2021 is referred to and whether or not authentication is established is confirmed.
Here, when the portable device ID is registered in the collation table 2021, it is determined that the authentication has been established.
If a plurality of transmission signals have been received in step 1402, it is determined whether authentication has been established for portable device IDs added to all received transmission signals.

  When the authentication is successful (step 1403, Yes), in step 1404, the control unit 201 confirms whether or not there is an operation instruction for the door lock device and / or the panic alarm device.

  Specifically, when a command (door lock command, door unlock command, panic alarm command) is added to the received transmission signal, the control unit 201 sets the door request switch 208 before receiving the transmission signal. When there is an operation (input of a door request signal), it is determined that there is an operation instruction.

  When there is an operation instruction (step 1404, Yes), the control unit 201 executes processing based on the operation instruction (steps 1405 to 1407).

Specifically, (1) When the door unlock command is added to the received transmission signal, or when the door request switch 208 of the locked door is operated before the transmission signal is received. The control unit 201 drives the door lock actuator 210 of the vehicle door to execute a process of bringing the vehicle door into an unlocked state (door unlock process: step 1405).
(2) When the door lock command is added to the received transmission signal, or when the door request switch 208 of the unlocked door is operated before receiving the transmission signal, the control unit 201 Then, the door lock actuator 210 of the vehicle door is driven to lock the vehicle door (door lock process: step 1406).
(3) When a panic alarm command is added to the received transmission signal, the control unit 201 causes the on-board equipment to be activated at the time of the panic, such as sounding the horn 212 or blinking the hazard lamp 214, to panic. (Panic alarm processing: step 1407).

[Door unlock processing]
Here, the details of the door unlock process (step 1405) will be described.
FIG. 11 is a flowchart for explaining details of the door unlock process (step 1405) in the keyless process (FIG. 10).

In the door unlock process, the control unit 201 executes the door unlock process for all portable device IDs that have been authenticated in step 1403 of the keyless process.
Specifically, in step 1501, the control unit 201 acquires the antenna ID added to the transmission signal together with the portable device ID.
This is because the position of the portable device (the main portable device 10 and the sub portable device 11) that has transmitted the transmission signal is specified.

In step 1502, the control unit 201 refers to the position information table 2022 based on the antenna ID, identifies the vehicle door associated with the antenna ID,
The door lock actuator 210 is driven to unlock the specified vehicle door.
For example, when the antenna ID added to the transmission signal together with the portable device ID is “B001”, the driver's seat door associated with the antenna ID “B001” is unlocked.
Therefore, when the user who has the portable device (the main portable device 10 and the sub portable device 11) that has transmitted the transmission signal with the antenna ID “B001” is in the vicinity of the driver's seat door, the driver's seat door is unlocked. Will be locked.

In the subsequent step 1503, the control unit 201 confirms whether or not the door unlock process has been completed for all portable device IDs for which authentication has been established, and if the door unlock process has been completed (step 1503). , Yes), the process ends.
Therefore, when the portable device ID that has been authenticated is only the portable device ID of the main portable device 10 possessed by the driver, only the driver's seat door is unlocked.
In this case, if the driver who owns the main portable device 10 is in the vicinity of the left rear door, the antenna ID added to the transmission signal together with the portable device ID is provided on the left rear door. Since the antenna ID of the selected antenna 22d is used, only the left rear door is unlocked.

In step 1503, if the door unlock process has not been completed for all portable device IDs for which authentication has been established (No in step 1503), the process returns to the process in step 1501 to perform the door unlock process. The door unlock process is executed based on the portable device ID that is not yet used (steps 1501 and 1502).
Therefore, the processing from step 1501 to 1503 is repeatedly executed until there is no portable device ID for which door unlock processing is not performed.

  Therefore, when there is a passenger carrying the sub portable device 11 in addition to the driver carrying the main portable device 10, the vehicle door near the passenger carrying the sub portable device 11 is in the second round. As a result of steps 1501 and 1502, unlocking is performed.

[Power transition processing]
Details of the power supply transition process (step 1306) performed in the main process (FIG. 9) of the in-vehicle device 30 will be described.
FIG. 12 is a flowchart for explaining the details of the power supply transition process.

In the power supply transition process, the control unit 201 executes the process for all portable device IDs that have been authenticated in step 1403 of the keyless process.
In step 1601, the control unit 201 confirms whether there is a power supply transition instruction or an engine start instruction.

  Specifically, when the switch operation signal is input by switching the ignition switch 250 to the ACC position or the START position in step 1303 of the main process (FIG. 9), the control unit 201 turns on the power supply. It is determined that there is a transition or engine start instruction (interrupt).

  When it is determined that there is an instruction for power supply transition or engine start (step 1601, Yes), the control unit 201 executes processing based on the instruction (steps 1602 to 1605).

Specifically, (1) when a switch operation signal is input by switching the ignition switch 250 to the START position, the portable device (the main portable device 10 and the sub portable device 11) that has transmitted the transmission signal. On condition that the engine has the authority to start (step 1602, Yes), the engine start process (step 1603) is executed.
(2) When the control unit 201 determines that there is an interruption due to the ignition switch 250 entering the ACC position, the control unit 201 switches the power source to the portable device (the main portable device 10 or the sub portable device 11) that has transmitted the transmission signal. On condition that the user has authority (step 1604, Yes), the power source switching process (step 1605) is executed.

Here, in order to confirm the authority, the control unit 201 refers to the collation table 2021 of the storage unit 202 based on the portable device ID added to the transmission signal, and the engine start is permitted for the portable device ID. It is executed by confirming whether or not.
For example, when the portable device ID is “01”, since engine start is “permitted”, it is determined that the engine has authority to start (step 1602, Yes), and the engine is started (step 160). 1603) When the portable device ID is “02”, the engine start is “prohibited”, so it is determined that there is no authority to start the engine, and the engine is not started. The same applies to the confirmation of the authority in power switching.

  When it is determined that there is no instruction for power supply transition (step 1601, No), or when it is determined that there is no authority (steps 1602, 1604, No), the power supply transition is not performed and the power supply transition is not performed. The process ends.

[Child lock processing]
Details of the child lock process (step 1307) performed in the main process (FIG. 9) of the in-vehicle device 30 will be described.
FIG. 13 is a flowchart for explaining the child lock process.

  In step 1701, the control unit 201 refers to the collation table 2021 in the storage unit 202 and confirms whether the portable device set with the child lock is in the rear seat.

When the portable device set with the child lock is in the rear seat (step 1701, Yes), in step 1702, the control unit 201 operates by operating the inside door handle of the vehicle door corresponding to the position of the portable device in the vehicle. In order to prohibit opening from the inside of the vehicle, the child lock function is set by setting the child lock switch of the vehicle door.
For example, in the verification table 2021, when the sub portable device 11 with the portable device ID “06” is in “inside_rear seat”, the inside door handles of the rear right door and the rear left door of the vehicle doors. Opening from the inside of the vehicle by the operation of is prohibited.

  If the portable device with the child lock set is not in the vehicle (No in step 1601), the process is terminated without performing the prohibition process (step 1702) of opening the door from the inside of the vehicle.

[Other processing]
The other process (step 1308) implemented by the main process (FIG. 9) of the vehicle equipment 30 is demonstrated. In the embodiment, as an example of other processes, an air conditioning control process (FIG. 14), a residual check process (FIG. 15) for a management target person (for example, a child), and a seat belt tightening check process (FIG. 16) will be described.

[Air conditioning control processing]
FIG. 14 is a flowchart for explaining the air conditioning control process of the other process 1.

The control unit 201 of the in-vehicle device 30 transmits an LF signal (reply request signal) every predetermined time in order to confirm the presence / absence of the portable device (the main portable device 10 and the sub portable device 11) inside and outside the vehicle. Yes.
Therefore, in step 1801, the control unit 201 confirms whether or not a transmission signal returned from the portable device (main portable device 10 or sub portable device 11) that has received the reply request signal has been received.

  When the transmitted transmission signal is received (step 1801, Yes), in step 1802, the control unit 201 is registered in the collation table 2021 based on the portable device ID and the antenna ID added to the received transmission signal. Update information content.

  For example, when a portable device ID whose location is not specified in the matching table 2021 and an antenna ID are added to the received transmission signal, the location (refer to the location information table 2022 based on the antenna ID) For example, the vehicle exterior_rear left door) is specified, and the “position” among the information items related to the portable device ID in the verification table 2021 is updated with the identified position (vehicle exterior_rear left door).

  In step 1803, the control unit 201 confirms the presence / absence of a change instruction, such as an authority / setting change instruction set in the collation table 2021 or a registration / deletion instruction for a portable device ID registered in the collation table 2021.

  In the embodiment, the authority / setting is changed or the registered portable device ID is registered / deleted via the input interface of the car navigation device provided in the vehicle. When these instructions are given, the determination in step 1803 is affirmed.

  When there is a change instruction (step 1803, Yes), in step 1804, the control unit 201 changes the authority / setting and registers / deletes the registered portable device ID according to the instruction via the input interface. The collation table 2021 is updated.

  For example, when there is an input to change the authority for power supply switching of the portable device ID “02” from “permitted” to “prohibited”, the information in the corresponding column of the collation table 2021 (see FIG. 5) is changed. Will be.

In step 1805, the control unit 201 refers to the collation table 2021 and counts the number of passengers by counting the number of portable device IDs whose position information is in the vehicle (in-vehicle_front seat, in-vehicle_rear seat, etc.). Count.
In step 1806, the control unit 201 outputs the information related to the counted number of passengers to a control device equipped with the vehicle.

For example, when the on-vehicle equipment is an air conditioner and the air conditioner is configured to switch the strength of air conditioning or the air volume area according to the number of passengers, the information on the counted number of passengers is sent to the control device of the air conditioner. Will be sent.
In this case, the air conditioner switches the strength of the air conditioning or the air volume area according to the number of passengers counted.
Then, when the number of passengers is small, the amount of air conditioning can be reduced, and when the number of passengers is large, the amount of air conditioning can be increased, so that the air conditioning in the vehicle 1 can be performed more appropriately.

[Residual check process for managed users]
Next, the process for confirming the presence / absence of a child in the vehicle as a management subject using a portable device will be described.
FIG. 15 is a flowchart for explaining the residual check process for the management subject.
FIG. 16 is a diagram illustrating a configuration example of a table stored in the storage unit, and is a diagram illustrating the contents of the collation table 2021 in the residual check process of the management target person.
FIG. 17 is a diagram showing an example of a change in the contents of the collation table 2021 in the residual check process of the management target person. Descriptions common to those in FIG.
In the following embodiments, a parent portable device (portable device ID “01”) is owned by an adult or a parent, and a child portable device (portable device ID “02”, “05”, “06”). Is described as being possessed by a child.

As described above, the control unit 201 of the in-vehicle device 30 confirms the position of the portable device (the main portable device 10 and the sub portable device 11) inside and outside the vehicle, and the LF signal (reply request signal) every predetermined time. Is sending.
Therefore, in step 3001, the control unit 201 confirms whether or not a transmission signal returned from the mobile device (main mobile device 10, sub mobile device 11) that has received the reply request signal has been received.
When a transmission signal is received (step 3001, Yes), in step 3002, the control unit 201 is registered in the matching table 2021 based on the portable device ID and antenna ID added to the received transmission signal. Update information content.

For example, when the position inside and outside the vehicle specified by referring to the position information table 2022 based on the antenna ID is different from the position specified by referring to the matching table 2021 based on the portable device ID, The content of the information item “position” in the collation table 2021 is updated to the position inside and outside the vehicle specified by the antenna ID.
This is to update the presence / absence of portable devices (main portable device 10 and sub portable device 11) inside and outside the vehicle and the position of each portable device to the latest state.

  When receiving the transmission signal, the control unit 201 measures the radio field intensity of the received transmission signal with a sensor (not shown), and compares the measured radio field intensity with a predetermined threshold intensity (dB). The measured radio wave intensity is divided into “weak” when it is less than the threshold intensity and “strong” when it is equal to or higher than the threshold intensity.

  Therefore, when the control unit 201 updates the information item in the collation table 2021 based on the portable device ID added to the received transmission signal, the control unit 201 also updates the content of the information item “radio wave intensity”. It has become.

  When the control unit 201 does not receive a reply signal in step 3001 described above (step 3001, No), the control unit 201 confirms whether or not the reply signal has been received regularly. .

  When the collation table is updated following reception of the return signal (step 3002), in step 3003, the control unit 201 refers to the collation table 2021 based on the portable device ID and antenna ID added to the received transmission signal. Then, it is determined whether or not the position of the parent portable device (portable device ID “01”) is in the vehicle.

Specifically, the control unit 201 refers to the collation table 2021 (FIG. 16) updated in step 3002 and confirms the position of the parent portable device (portable device ID is “01”).
For example, in FIG. 16, the position of the parent portable device (portable device ID is “01”) is “outside_trunk door”. In this case, the user who owns the parent portable device However, it is near the trunk door outside the vehicle.
Therefore, in this case, the control unit 201 determines that the position of the parent portable device is not in the vehicle (step 3003, NO).

  If it is determined that the position of the parent portable device is not in the vehicle, in step 3005, the control unit 201 refers to the matching table 2021 (FIG. 16) updated in step 3002. It is confirmed whether the position of the portable device (portable device IDs “02”, “05”, “06”) is in the vehicle.

For example, in FIG. 16, the positions of the portable devices for children (portable device IDs “02” and “05”) are “inside_front seat” and “inside_rear seat”. The user who has the portable device for children is in the vehicle.
Therefore, in this case, the control unit 201 determines that the child portable device is in the vehicle (step 3005, Yes).

  If it is determined that the child portable device is in the vehicle, in step 3006 the control unit 201 refers to the collation table 2021 updated in step 3002, and the parent portable device is detected. Check whether it is done.

For example, in FIG. 16, the position of the parent portable device (portable device ID is “01”) is “outside_trunk door”. In this case, the user who owns the parent portable device Is detected.
Therefore, in this case, the control unit 201 determines that a parent portable device has been detected (step 3006, Yes).

If it is determined that the parent portable device is detected, the control unit 201 refers to the collation table 2021 updated in step 3002 in step 3007, and determines the detected parent portable device. It is confirmed whether the radio wave intensity is equal to or higher than the threshold intensity.
For example, in FIG. 16, the radio wave intensity of the parent portable device (the portable machine ID is “01”) is “weak”, and as described above, when the radio wave intensity is “weak”, The radio wave intensity is less than the threshold intensity.
Therefore, in this case, the control unit 201 determines that the detected radio wave intensity of the parent portable device is not equal to or higher than the threshold intensity (No in step 3007).

Then, in step 3008, the control unit 210 performs warning processing.
This is because the user who has the parent portable device is not near the vehicle even though there is a user who has the child portable device in the vehicle.
Specifically, the control unit 210 outputs a ringing sound by the horn 214 or blinks by the hazard lamp 216 to notify (warn) the surroundings that there is a user who has a portable device for children in the vehicle. Because.

Incidentally, when it is determined in step 3006 that the parent portable device is not detected, the warning process in step 3008 is performed.
When it is determined in step 3003 that the position of the parent portable device is in the vehicle (step 3003, Yes), or in step 3007, the detected radio wave intensity of the parent portable device is the threshold value. If it is determined that the intensity is greater than or equal to the strength (step 3007, Yes), a warning stop process in step 3004 is executed.

  In the warning stop processing, when the warning stop processing is not performed and the sound of the horn 212 is not output to the surroundings due to the blinking of the hazard lamp 216, the processing is terminated as it is. When the notification is performed, a process of ending the notification to the surroundings by the output of the ringing sound by the horn 212 or the blinking by the hazard lamp 214 is performed.

As described above, the control unit 201 of the in-vehicle device 10 transmits a reply request signal every predetermined time, and periodically performs a notification to the surroundings by outputting a ringing sound by the horn 214 or the like. Is sending a reply request signal.
For this reason, the user who owns the parent portable device may come back to the vehicle when he / she notices that the child as the management subject remains in the vehicle due to the output of the ringing sound from the horn 212.

In this case, when the user who owns the parent portable device returns to the area where the reply request signal transmitted from each of the antennas 22a to 22e, 24a, and 24b can be received, the parent portable device is A reply signal is transmitted in response to the received reply request signal.
Then, in the above-described step 3002, the position and radio wave intensity related to the parent portable device in the collation table 2021 are updated.

Therefore, when the user who owns the parent portable device returns to the inside of the vehicle (see FIG. 17A), the determination in step 3003 described above is affirmed (Yes in step 3003), and step 3004 The warning stop process is performed by the control unit 201.
In addition, when the vehicle has returned to a position where the radio field intensity outside the vehicle returns to “strong” (FIG. 17B), the determination in step 3007 described above is affirmed (step 3007, Yes), and warning stop processing in step 3004 is performed. Is executed by the control unit 201.

Furthermore, when the user who possesses the portable device for the person to be managed (for example, a child) goes out of the vehicle (see FIG. 17C), the determination in step 3005 is denied (step 3005). No), the warning stop process in step 3004 is performed by the control unit 201.
In this case, following the user who owns the parent portable device, the user who owns the portable device for the management subject (for example, a child) has gone out of the vehicle and remains in the vehicle. It won't be.

  As described above, the management target person remains in the vehicle depending on the positions of the user who owns the portable device for the parent and the user who owns the portable device for the management subject (for example, a child) inside and outside the vehicle. In the case where the vehicle is present, the remaining in the vehicle of the management subject can be notified to the surroundings of the vehicle.

[Seat belt tightening check process]
Next, a process for checking whether or not the seat belt has been forgotten to be tightened using a portable device will be described.
FIG. 18 is a flowchart for explaining the seat belt tightening forget check process.

As described above, the control unit 201 of the in-vehicle device 30 confirms the position of the portable device (the main portable device 10 and the sub portable device 11) inside and outside the vehicle, and the LF signal (reply request signal) every predetermined time. Is sending.
Therefore, in step 4001, the control unit 201 confirms whether or not a transmission signal returned from the portable device (main portable device 10 or sub portable device 11) that has received the reply request signal has been received.
When a transmission signal is received (step 4001, Yes), in step 4002, the control unit 201 is registered in the matching table 2021 based on the portable device ID and antenna ID added to the received transmission signal. Update information content.
When the control unit 201 does not receive a reply signal (No at Step 4001), the reception confirmation process is repeated every predetermined time until a reply signal is received.

Next, in step 4003, the control unit 201 refers to the collation table 2021 (FIG. 16) updated in step 4002 and counts the number of portable devices located in the vehicle.
For example, in (a) of FIG. 5, since portable devices having portable device IDs “01”, “02”, and “05” are located in the vehicle, the number of portable devices located in the vehicle is , “3”.

  In step 4004, the control unit 201 detects the electrical signal output from the buckle switch (sensor) when the tongue plate of the seat belt is attached (locked) to the buckle, and the number of seat belts locked. Count.

  Next, in step 4005, the control unit 201 determines whether or not the ignition switch 250 (see FIG. 4) is ON (START position).

  When the control unit 201 determines that the ignition switch 250 is ON (START position) (step 4005, Yes), in step 4007, the control unit 201 determines the number of portable devices in the vehicle counted in step 4003. Then, the number of locked seat belts counted in step 4004 is compared, and it is determined whether or not the number of portable devices in the vehicle is larger than the number of locked seat belts.

  For example, when the number of portable devices in the vehicle is three and the number of locked seat belts is two, the control unit 201 determines that the number of portable devices in the vehicle (three) is the number of locked seats. It is determined that the number is greater than the number of belts (two) (step 4007, Yes), and in step 4008, the control unit 201 notifies the user in the vehicle of the content that prompts the user to lock the seat belt, and the buzzer 222 sounds. Or an alarm by blinking of the indicator 221.

  If the user who has forgotten to fasten the seat belt in the vehicle notices that he / she has forgotten to fasten and wears the seat belt due to the warning in step 4008, the control unit 201 locks in step 4004 of the next forgetting to fasten seat belt check process. Count that the number of used seat belts has increased by one to three.

  If the ignition switch 250 is ON (step 4005, Yes), in step 4007, the control unit 201 determines that the number of portable devices in the vehicle is equal to or less than the number of locked seat belts. (Step 4007, No), in Step 4006, the control unit 201 performs a process of stopping the warning due to the output of the buzzer 222 sound and the blinking of the indicator 221 executed in the previous seat belt tightening forgotten check process.

  In this way, when the number of locked seat belts is smaller than the number of portable devices located in the vehicle, warning processing is performed, so that forgetting to fasten the seat belt can be suitably prevented.

As described above, in the embodiment,
(1) A plurality of portable devices (main portable device 10 and sub portable device 11) possessed by the user;
An in-vehicle device 30 that is mounted on the vehicle 1 and that controls communication with the portable device (the main portable device 10 and the sub-portable device 11) and the operation of the on-vehicle equipment;
When there is an operation request for in-vehicle equipment, it is necessary to establish authentication between the mobile device (main mobile device 10, sub-mobile device 11) and the in-vehicle device 30, and in-vehicle equipment (door lock device, panic alarm device). In a vehicle keyless entry system configured to operate
The in-vehicle device 30 is
A plurality of antennas (front-seat antenna 24a, rear-seat antenna 24b, and door antenna) associated one-to-one with a receivable area (communication area AL) in the vehicle 1 and a receivable area (communication area AL) outside the vehicle 1 22a to 22d, trunk antenna 22e),
An antenna that generates a reply request signal for requesting a reply to the in-vehicle device 30 at a predetermined timing and transmits the reply request signal when transmitting the reply request signal from each of the plurality of antennas 22a to 22e, 24a, and 24b. A control unit 201 that transmits an antenna ID (position information), which is a unique identifier assigned to the response request signal,
The relationship between the portable device ID, which is a unique identifier assigned to each portable device registered in the vehicle-mounted device 30, and the operation authority for the vehicle-mounted device, and the relationship between the antenna ID serving as the operation requirement of the vehicle-mounted device. A storage unit 202 that stores prescribed tables (collation table 2021, position information table 2022, position condition table 2023),
The table further defines a relationship between the portable device ID and information on a user who owns the portable device specified by the portable device ID, and a relationship between the position inside and outside the vehicle specified by the antenna ID. And
Mobile devices (main mobile device 10 and sub mobile device 11)
When a reply request signal is received, a reply transmission signal is generated, and a portable device control unit (control unit) that transmits an antenna ID added to the received reply request signal and a portable device ID to the transmission signal. 301, control unit 401),
The control unit 201 of the in-vehicle device 30 is
When a transmission signal sent back from the portable device (main portable device 10, sub-mobile device 11) is received,
When the received transmission signal is a transmission signal transmitted from the portable device (the main portable device 10 and the sub portable device 11) in response to the reply request signal transmitted at the timing when the operation request for the in-vehicle equipment is received,
Refer to the table (collation table 2021, position condition table 2023) based on the portable device ID and antenna ID added to the received transmission signal,
Check whether the operation of the in-vehicle equipment whose antenna ID is the operation request is permitted for the portable device ID, and if the operation is permitted, the operation authority is permitted for the in-vehicle equipment. It was set as the structure operated within the range.

When configured in this manner, the antenna ID added to the returned transmission signal is the antenna ID that is the operation requirement of the vehicle-mounted equipment requested to operate, and the operation content of the vehicle-mounted equipment requested to operate is When the portable device ID added to the transmission signal is permitted, the on-vehicle equipment can be operated.
Therefore, by setting the operation authority of the in-vehicle equipment that can be activated for each portable device, the in-vehicle equipment that can be activated can be set for each user who owns the portable device.
In addition, since the antenna ID set as the operation requirement of the in-vehicle device is required for the operation of the in-vehicle device, in order to operate the target in-vehicle device, the antenna ID of the operation requirement of the in-vehicle device It is necessary to receive the reply request signal within the receivable range of the reply request signal transmitted from the antenna.
Therefore, when the on-vehicle equipment to be operated is one of a plurality of on-vehicle equipment that can be operated at the same time, the in-vehicle equipment is installed in the vicinity of the antenna with the antenna ID defined as the operation requirement of the target on-vehicle equipment. By making an equipment operation request, only the target in-vehicle equipment can be operated.

(2) In portable devices,
A main portable device 10 (first portable device) possessed by the driver;
There is a sub portable device 11 (second portable device) owned by the passenger,
The main portable device 10 is configured such that the unlock switch 10a and the lock switch 10b (operator) operated when instructing the operation of the door lock device are provided only in the main portable device 10.

If comprised in this way, since the sub portable device 11 is not provided with the operation element (the unlock switch 10a, the lock switch 10b) which the main portable device 10 has, it will be smaller than the main portable device 10 as much as there is no operation element. it can.
In addition, since a mechanism for operating the operation element and an element for detecting the operation are not necessary, it can be manufactured at a lower cost than that of the main portable device 10.

(3) The on-vehicle equipment is a door lock device provided in each of a plurality of vehicle doors (driver's seat door, passenger seat door, rear right door, rear left door) provided in the vehicle,
The antennas 22a to 22d having the antenna ID registered in the position condition table 2023 as the operation requirements of the door lock device are provided in each vehicle door.

If comprised in this way, antenna ID of the antenna which transmits the said reply request signal will be added to the reply request signal transmitted from each vehicle door (driver's seat door, front passenger door, rear right door, rear left door). Will be.
Therefore, in the collation table 2021, when the unlocking of the vehicle door is permitted for the portable device possessed by the driver (main portable device 10) and the portable device possessed by the passenger (sub portable device 11), When there is a request to unlock the vehicle door, only the vehicle door near the driver and the passenger can be unlocked.
Therefore, since all the vehicle doors are not unlocked by the unlock request of the vehicle door, the crime prevention property is improved.
In addition, the vehicle door that can be unlocked by the portable device (sub-portable device 11) possessed by the passenger is not limited to a specific vehicle door, and for the passenger to get on the vehicle, Since it is not necessary to make unlock requests a plurality of times, passenger convenience is improved.

(4) The collation table 2021 includes
As an information item associated with the portable device ID,
Information indicating the setting / non-setting of the vehicle door child lock function,
Information indicating the position of the portable device identified by the portable device ID in the vehicle 1 is included,
The control unit 201 of the in-vehicle device 30 is
When there is a portable device ID set with a child lock function in the vicinity of the vehicle door that has been opened, it is prohibited to open the vehicle door from inside the vehicle by operating the inside door handle of the vehicle door that has been opened. .

With this configuration, the child lock function can be set to a specific portable device (for example, the sub portable device 11) simply by changing the setting / non-setting of the child lock function related to the portable device ID in the matching table 2021. Therefore, each time an occupant (for example, a child) who wants to set the child lock function changes the seating position in the vehicle of the occupant carrying the sub portable device 11 with the child lock function set, There is no need to turn on / off the child lock function setting switch attached to the vehicle door.
Therefore, the child lock function can be appropriately operated only by a necessary vehicle door only by having the occupant (for example, a child) carry the portable device having the portable device ID for which the operation of the child lock function is set. .

(5) In-vehicle equipment includes an air-conditioning control device that controls an air-conditioning unit 218 (air-conditioning device) in the vehicle 1 in addition to the door lock device and the panic alarm device,
An antenna with an antenna ID registered in the position condition table 2023 as an operation requirement of the air conditioning control device is a reply request in which the antenna ID (position information) is added to the receivable area (communication area AL) in the vehicle 1. Configured to transmit signals,
The control unit 201 of the in-vehicle device 30 is
In response to the operation request of the air conditioning control device, a reply request signal is transmitted, and the portable device ID added with the transmission signal received after the reply request signal is transmitted is the portable device ID of the portable device in which the operation of the air conditioning control device is permitted. In this case, the receivable area corresponding to the antenna ID added to the received transmission signal is air-conditioned.

  If comprised in this way, since the range by which the air conditioning in the vehicle 1 is air-conditioned can be changed appropriately according to the position of the user who possesses the portable device (the main portable device 10, the sub portable device 11), the air conditioning in the vehicle 1 is changed. This can be done more appropriately and can be expected to contribute to improved vehicle fuel efficiency.

(6) The control unit 201 of the in-vehicle device 30
When a plurality of transmission signals are received after transmission of a reply request signal corresponding to the operation request of the air conditioning control device, the portable device ID added to at least one of the received plurality of transmission signals is the air conditioning control. When the portable device ID is permitted to operate the device, air conditioning is performed by the air conditioning control device,
The number of transmission signals including the antenna ID of the antenna associated with the receivable area (communication area AL) in the vehicle 1 among the antennas of the antenna ID added to each of the plurality of transmission signals received, The air conditioning amount by the air conditioning control device is changed according to the number of specified transmission signals.

With this configuration, the specified number of transmission signals corresponds to the number of portable devices (main portable device 10 and / or sub portable device 11) located in the vehicle 1, and the number of portable devices is within the vehicle. The total number of passengers.
Therefore, if the amount of air conditioning is changed according to the specified number of transmission signals, that is, the total number of passengers in the vehicle, the amount of air conditioning can be reduced when the number of passengers is small, and the amount of air conditioning when there are many passengers. Since it can increase, the air conditioning in the vehicle 1 can be performed more appropriately.
Therefore, the contribution to the improvement of the vehicle fuel consumption can be expected.

(7) The on-vehicle equipment includes an engine starting device and a power source switching device, and the control unit 201 of the on-vehicle device 30 transmits a reply request signal in response to an operation request for engine starting or power source switching. Later, when the transmission signal is received, the antenna ID added to the received transmission signal is the antenna ID (the driver's seat antenna 31 of the driver seat antenna 31) that is regarded as the operation requirement of the engine starter / power supply switching device that requested the operation. The portable device ID (main portable device) which is the antenna ID (A001)) and whose portable device ID added to the received transmission signal is permitted to operate the engine starter / power supply switching device requested to operate. 10 portable machine ID “01”), the engine starter can be switched by the engine starter / power supply switching unit.

  With this configuration, only a legitimate user (driver) seated in the driver's seat can start the engine and switch the power supply. Therefore, it is preferable for the passenger to switch the power supply to start the engine without permission. Can be prevented.

(8) The control unit 201 of the in-vehicle device 30
When there is an instruction input via the input interface of the car navigation device (car navigation / audio 219) mounted on the vehicle 1, the portable device ID registered in the collation table 2021 is updated (added or changed) according to the instruction input. , Deletion), update of the operation authority for the on-vehicle equipment of the portable device ID, and setting / releasing the child lock function.

With this configuration, by using the input interface and display of the car navigation device (car navigation / audio 219), the contents of the collation table 2021 can be updated without preparing a dedicated input / output interface.
Therefore, the adoption cost of the keyless entry system for vehicles can be reduced.

(9) In the table (collation table 2021), the information of the user who owns the portable device ID and the portable device (main portable device 10, sub-portable device 11) specified by the portable device ID (the user to be managed (children) ), A relationship with a non-managed user (adult)), and a relationship between the position inside and outside the vehicle specified by the antenna ID,
The control unit 201 of the in-vehicle device 30 is
When a transmission signal sent back from the portable device (main portable device 10, sub-mobile device 11) is received,
When the received transmission signal is a transmission signal from a portable device that has received a reply request signal transmitted at a preset timing,
Based on the portable device ID and the antenna ID added to the received transmission signal, the table (the collation table 2021, the position information table 2022, the position condition table 2023) is referred to, and the specified user information and the position inside and outside the vehicle Based on the relationship, the user who owns the portable device that transmitted the transmission signal is specified (managed user (child), unmanaged user (adult)), and the position of the specified user inside and outside the vehicle And determining whether or not a warning having a content determined according to the position of the specified user inside or outside the vehicle is required.

  If comprised in this way, since the control part 201 of the vehicle equipment 30 will identify the position where the user who has a portable device exists in the vehicle inside and outside with the predetermined timing set beforehand, the control part 201 is The position of the user holding the portable device inside and outside the vehicle can be periodically grasped, and a predetermined warning can be appropriately given according to the position of the user inside and outside the vehicle.

(10) The control unit 201 of the in-vehicle device 30 is
When the user specified to be located in the vehicle is a user to be managed (a user who has a child portable device), the user (parent) is referred to the table (collation table 2021) and is not managed. The position of the user who owns the portable device) inside and outside the vehicle is confirmed, and whether or not the warning of the content for notifying the existence of the user to be managed is determined is determined.

With this configuration, when a non-managed user (adult) leaves the vehicle even though the managed user (child) is in the vehicle, the managed user (child) is in the vehicle. It is possible to notify the user who is away from the management object away from the vehicle and the surroundings of the vehicle.
Thereby, it can prevent suitably that the user (child) of management object remains in a vehicle.

(11) The control unit 201 of the in-vehicle device 30
Warning of contents that notify the existence of a user to be managed (a user who has a mobile device for a child) when the position of the user outside the management target (a user who has a parent mobile device) inside or outside the vehicle cannot be specified It was set as the structure which implements.

With this configuration, the control unit 201 can no longer be detected by the in-vehicle device 30 because a non-managed user (adult) is away from the vehicle even though the managed user (child) is in the vehicle. At that time, it is possible to notify the surroundings of the vehicle that the user (child) to be managed is in the vehicle.
Thereby, it can prevent suitably that the user (child) of management object remains in a vehicle.

(12) When the position of the user (adult) that is not managed is outside the vehicle and the position of the user (child) that is managed is inside the vehicle, the control unit 201 of the in-vehicle device 30
Radio signal strength (signal strength) of a transmission signal from a portable device possessed by an unmanaged user (adult) when the position of the unmanaged user (adult) is determined to be outside the vehicle If the confirmed radio field intensity is less than the threshold intensity, a warning is issued to notify the presence of the user (child) to be managed.

If comprised in this way, the control part 201 will be the user of management object, when the user (adult) who is not a management object is away from a vehicle, although the user (child) of management object exists in a vehicle. The fact that the (child) is inside the vehicle can be notified to the surroundings of the vehicle.
Thereby, it can prevent suitably that the user (child) of management object remains in a vehicle.

(13) A sensor that detects whether or not each seat belt installed in the vehicle is used is provided, and the control unit 201 of the in-vehicle device 30 refers to the table (collation table 2021) and refers to the user existing in the vehicle. The number of users is specified, and when the number of specified users is greater than the number of used seat belts detected by the sensor, a warning that prompts confirmation of the use state of the seat belt is implemented.

  When configured in this way, the control unit 201 determines whether or not the number of users in the vehicle is greater than the number of seat belts being used, and as a result, the number of users in the vehicle is If the number of seat belts used is greater than the number of seat belts being used, a warning that prompts confirmation of use of the seat belts is issued, so that forgetting to fasten the seat belts can be reliably prevented.

(14) The control unit 201 of the in-vehicle device 30
When there is an instruction input via the input interface (communication interface 230) of the car navigation device (car navigation / audio 219) mounted on the vehicle, the portable device registered in the table (collation table 2021) according to the instruction input It is comprised so that the relationship between the portable device specified by ID and the information of the user who possesses the said portable device may be updated.

With this configuration, by using the input interface and display of the car navigation device (car navigation / audio 219), the contents of the collation table 2021 can be updated without preparing a dedicated input / output interface.
Therefore, the adoption cost of the keyless entry system for vehicles can be reduced.

Furthermore, in the embodiment,
(15) A plurality of portable devices (main portable device 10 and sub-portable device 11) possessed by the user;
An in-vehicle device 30 that is mounted on the vehicle 1 and controls the communication with the portable device and the operation of the in-vehicle equipment (door lock device, panic alarm device);
A plurality of antennas (driver's seat antenna 31, indoor antennas 24a and 24b, one-to-one correspondence with a receivable area (communication area AL) in the vehicle 1 and a receivable area (communication area AL) outside the vehicle 1). Door antennas 22a to 22d and trunk antenna 22e),
The in-vehicle device 30 defines the relationship between the portable device ID, which is a unique identifier assigned to each portable device registered in the in-vehicle device 30, and the operating authority for the on-vehicle equipment (door lock device, panic alarm device). A storage unit 202 that stores a table in which a matching table 2021 and a position condition table 2023 in which a relationship with an antenna ID that is an operation requirement of in-vehicle equipment is defined are defined;
When there is a request for operation of the in-vehicle equipment, the in-vehicle equipment is configured to operate on the condition that authentication is established between the portable device (the main portable device 10 and / or the sub portable device 11) and the in-vehicle device 30. A control method for in-vehicle equipment in the keyless entry system K for vehicles,
When there is a request for operation of the in-vehicle equipment, the in-vehicle device 30 generates a reply request signal for requesting a reply to the in-vehicle device 30 and returns a reply request signal from each of the plurality of antennas. Adding an antenna ID, which is a unique identifier assigned to the antenna that transmits the request signal, to the reply request signal, and
When the portable device (the main portable device 10 and / or the sub portable device 11) receives the reply request signal, the portable device generates a reply transmission signal, the antenna ID added to the received reply request signal, and the reply request signal. Adding the portable device ID of the portable device that has received the transmission signal to the transmission signal; and
When the in-vehicle device 30 receives the transmission signal, the antenna ID is determined as an operational requirement by referring to the table (the collation table 2021 and the position condition table 2023) based on the portable device ID and the antenna ID added to the received transmission signal. Check whether the operation of the in-vehicle equipment is permitted for the portable device ID, and if the operation is permitted, operate the in-vehicle equipment within the range where the operation authority is permitted Step to
It was set as the structure which has.
(16) Also, a plurality of portable devices (main portable device 10, sub-portable device 11) possessed by the user,
An in-vehicle device 30 mounted on the vehicle 1,
When there is an operation request for in-vehicle equipment, it is necessary to establish authentication between the mobile device (main mobile device 10, sub-mobile device 11) and the in-vehicle device 30, and in-vehicle equipment (door lock device, panic alarm device). In a vehicle keyless entry system configured to operate
The in-vehicle device 30 is
A plurality of antennas (front-seat antenna 24a, rear-seat antenna 24b, and door antenna) associated one-to-one with a receivable area (communication area AL) in the vehicle 1 and a receivable area (communication area AL) outside the vehicle 1 22a to 22d, trunk antenna 22e),
When there is an operation request for in-vehicle equipment, a response request signal for requesting a response to the in-vehicle device 30 is generated, and when a response request signal is transmitted from each of the plurality of antennas 22a to 22e, 24a, 24b, A control unit 201 that transmits an antenna ID (position information) assigned to an antenna that transmits a reply request signal by adding it to the reply request signal;
The relationship between the portable device ID assigned to each portable device registered in the vehicle-mounted device 30 and the collation table 2021 that defines the relationship between the operation authority for the vehicle-mounted device and the antenna ID that is the operation requirement of the vehicle-mounted device is specified. A storage unit 202 for storing the position condition table 2023
Mobile devices (main mobile device 10 and sub mobile device 11)
When a reply request signal is received, a reply transmission signal is generated, and a portable device control unit (control unit) that transmits an antenna ID added to the received reply request signal and a portable device ID to the transmission signal. 301, control unit 401),
The control unit 201 of the in-vehicle device 30 is
When the transmission signal sent back from the portable device (main portable device 10 and sub portable device 11) is received, a table (collation table 2021, position condition table) based on the portable device ID and antenna ID added to the received transmission signal. 2023),
When the antenna ID is an antenna ID that is an operation requirement of the in-vehicle equipment that is requested to operate, and the portable device ID is a portable device ID that is permitted to operate the in-vehicle equipment that is requested to operate. The in-vehicle equipment that requested the operation was configured to operate within the range permitted by the operation authority.

When configured in this manner, the antenna ID added to the returned transmission signal is the antenna ID that is the operation requirement of the vehicle-mounted equipment requested to operate, and the operation content of the vehicle-mounted equipment requested to operate is When the portable device ID added to the transmission signal is permitted, the on-vehicle equipment can be operated.
Therefore, by setting the operation authority of the in-vehicle equipment that can be activated for each portable device, the in-vehicle equipment that can be activated can be set for each user who owns the portable device.
In addition, since the antenna ID set as the operation requirement of the in-vehicle device is required for the operation of the in-vehicle device, in order to operate the target in-vehicle device, the antenna ID of the operation requirement of the in-vehicle device It is necessary to receive the reply request signal within the receivable range of the reply request signal transmitted from the antenna.
Therefore, when the on-vehicle equipment to be operated is one of a plurality of on-vehicle equipment that can be operated at the same time, the in-vehicle equipment is installed in the vicinity of the antenna with the antenna ID defined as the operation requirement of the target on-vehicle equipment. By making an equipment operation request, only the target in-vehicle equipment can be operated.

When configured in this manner, the antenna ID added to the returned transmission signal is the antenna ID that is the operation requirement of the vehicle-mounted equipment requested to operate, and the operation content of the vehicle-mounted equipment requested to operate is When the portable device ID added to the transmission signal is permitted, the on-vehicle equipment can be operated.
Therefore, by setting the operation authority of the in-vehicle equipment that can be activated for each portable device, the in-vehicle equipment that can be activated can be set for each user who owns the portable device.

In the above-described embodiment, the setting change of the parent portable device and the child portable device in the portable device (main portable device 10 and sub portable device 11) is performed via the input interface of the car navigation device. For example, a portable device with a portable device ID “01” is set as a parent portable device, and portable devices with portable device IDs “02”, “05”, and “06” are set as portable devices for children. However, the present invention is not limited to this.
For example, the main portable device 10 is set as a parent portable device in advance, the sub portable device 11 is set as a child portable device 11, and the main portable device 10 that is a parent portable device is always owned by an adult user. Thus, the sub portable device 11 that is a portable device for children may be held by a child user.
Even if comprised in this way, based on the position of the portable device (main portable device 10) for parents inside and outside the vehicle, and the position of the portable device for children (sub portable device 11), the main portable device 10 is a vehicle. When there is no inside or outside of the vehicle and only the sub portable device 11 is in the vehicle, it is possible to appropriately issue a warning indicating that a child as a management subject remains in the vehicle. .

DESCRIPTION OF SYMBOLS 1 Vehicle 10 Main portable device 10a Unlock switch 10b Lock switch 10c Panic alarm switch 11 Sub portable device 22a-22d Door antenna 22e Trunk antenna 24a, 24b Indoor antenna 30 Car-mounted device 31 Driver's seat antenna 201 Control unit 202 Memory Unit 203 RF receiving unit 204 RF antenna 205 LF transmitting unit 206 LF antenna 207 Door request input I / F
208 Door request switch 209 Door lock I / F
210 Door lock actuator 211 Horn I / F
212 Horn 213 Hazard I / F
214 Hazard lamp 215 Communication I / F
216 ADP unit 217 Seat adjustment actuator 218 Air conditioner unit 219 Audio 220 Engine controller 221 Indicator 222 Buzzer 230 Input I / F
231 Various switches 250 Ignition switch 301 Control unit 302 Storage unit 303 LF reception unit 304 RF transmission unit 305 Lock switch input I / F
306 Unlock switch input I / F
307 Panic alarm switch input I / F
401 control unit 402 storage unit 403 LF reception unit 404 RF transmission unit 2021 collation table 2022 position information table 2023 position condition table ID portable device ID antenna K vehicle keyless entry system (keyless system)

Claims (15)

A plurality of portable devices possessed by the user;
In a vehicle keyless entry system, which is mounted on a vehicle and has an in-vehicle device that controls communication with the portable device and operation of in-vehicle equipment,
The in-vehicle device is
A plurality of antennas associated one-to-one with the receivable area inside the vehicle and the receivable area outside the vehicle;
A reply request signal for requesting a reply to the in-vehicle device is generated at a predetermined timing, and when the reply request signal is transmitted from each of the plurality of antennas, the reply request signal is assigned to the antenna that transmits the reply request signal A control unit that adds an antenna ID, which is a unique identifier, to the reply request signal and transmits it;
The relationship between the portable device ID that is a unique identifier assigned to each portable device registered in the vehicle-mounted device, the relationship between the operation authority for the vehicle-mounted device, and the antenna ID that is the operation requirement of the vehicle-mounted device. A storage unit for storing a prescribed table,
The portable device is
When the reply request signal is received, a portable transmission control for generating a reply transmission signal and adding the antenna ID added to the received reply request signal and the portable machine ID to the transmission signal for transmission Part
The control unit of the in-vehicle device is
When receiving the transmission signal,
When the received transmission signal is a transmission signal transmitted from the portable device with respect to a reply request signal transmitted at a timing when the operation request for the in-vehicle equipment is received,
Refer to the table based on the portable device ID and the antenna ID added to the received transmission signal,
It is confirmed whether or not the operation of the in-vehicle equipment for which the antenna ID is an operation requirement is permitted with respect to the portable device ID, and when the operation is permitted, the in-vehicle equipment is authorized to operate. A keyless entry system for vehicles, which operates within the permitted range. In the portable device,
A first portable device possessed by the driver;
There is a second mobile device that the passenger has,
The first portable device is:
The vehicle keyless entry system according to claim 1, wherein an operation element operated when instructing an operation of the in-vehicle equipment is provided only in the first portable device. The in-vehicle equipment is a door lock device provided in each of a plurality of vehicle doors provided in the vehicle,
The vehicle keyless entry system according to claim 1 or 2, wherein an antenna of the antenna ID registered in the table as an operation requirement of the door lock device is provided in each vehicle door. . In the table,
As an information item associated with the portable device ID,
Information indicating setting / non-setting of a child lock function of the vehicle door;
Information indicating the position of the portable device specified by the portable device ID in the vehicle, and
The control unit of the in-vehicle device is
When the portable device ID having the child lock function is present in the vicinity of a vehicle door that has been opened, it is prohibited to open the vehicle door that has been opened from the inside of the vehicle. Item 4. A keyless entry system for vehicles according to Item 3. The on-vehicle equipment includes an air conditioning control device that controls the air conditioning device in the vehicle,
The antenna of the antenna ID registered in the table as an operation requirement of the air conditioner is configured to transmit the reply request signal with the antenna ID added to the receivable area in the vehicle. And
The control unit of the in-vehicle device is
A portable device ID that transmits the reply request signal corresponding to the operation request of the air conditioning control device and is added to the transmission signal received after the transmission of the reply request signal is a portable device that is permitted to operate the air conditioning control device. The vehicle keyless according to any one of claims 1 to 4, wherein in the case of a machine ID, air conditioning is performed in a receivable area corresponding to an antenna ID added to the received transmission signal. Entry system. The control unit of the in-vehicle device is
When a plurality of transmission signals are received after transmission of the reply request signal according to the operation request of the air conditioning control device, a portable device ID added to at least one transmission signal of the plurality of received transmission signals is The air conditioning control device performs air conditioning when the portable device ID is permitted to operate the air conditioning control device,
The number of transmission signals including the antenna ID of the antenna associated with the receivable area in the vehicle among the antennas of the antenna ID added to each of the plurality of received transmission signals is identified, and the identified transmission signal The vehicle keyless entry system according to claim 5, wherein the air conditioning amount by the air conditioning control device is changed according to the number of the air conditioning controllers.   The keyless entry system for a vehicle according to any one of claims 1 to 6, wherein the on-vehicle equipment includes an engine starter and a power source switching device. The control unit of the in-vehicle device is
When there is an instruction input via an input interface of a car navigation device mounted on the vehicle, the mobile device ID registered in the table is updated in response to the instruction input, and the in-vehicle equipment of the mobile device ID is The keyless entry system for vehicles according to any one of claims 1 to 7, wherein the operation authority is updated. The table further defines a relationship between the portable device ID and information on a user who owns the portable device specified by the portable device ID and a position inside and outside the vehicle specified by the antenna ID. Has been
The control unit of the in-vehicle device is
When receiving the transmission signal,
When the received transmission signal is a transmission signal from the portable device that has received a reply request signal transmitted at a preset timing,
Refer to the table based on the portable device ID and the antenna ID added to the received transmission signal, and based on the relationship between the specified user information and the position inside and outside the vehicle, While identifying the user who possesses the portable device that transmitted the transmission signal, the position of the identified user inside and outside the vehicle is identified,
The keyless entry system for a vehicle according to claim 1, wherein whether or not a warning having a content determined according to the specified position of the user inside or outside the vehicle is determined. The control unit of the in-vehicle device is
If the user identified as being in the vehicle is a managed user,
10. The table according to claim 9, wherein the position of a user who is not a management target is confirmed in a vehicle inside / outside by referring to the table, and whether or not a warning of contents for informing the presence of the management target user is necessary is determined. Keyless entry system for vehicles as described. The control unit of the in-vehicle device is
The vehicle keyless entry system according to claim 10, wherein when the position of the non-management target user inside or outside the vehicle cannot be specified, a warning with a content notifying the presence of the management target user is performed. The control unit of the in-vehicle device is
If the user identified as being in the vehicle is a managed user,
The signal strength of the received transmission signal is confirmed, and when the signal strength of the received transmission signal is less than a threshold strength, a warning of contents for notifying the presence of the management target user is performed. The vehicle keyless entry system according to claim 9. Provided with a sensor that detects whether or not each seat belt installed in the vehicle is used,
The control unit of the in-vehicle device is
With reference to the table, the number of users present in the vehicle is specified, and when the number of specified users is larger than the number of used seat belts detected by the sensor, the use of the seat belt is determined. The vehicle keyless entry system according to claim 9, wherein a warning with a content prompting confirmation of the state is performed. The control unit of the in-vehicle device is
When there is an instruction input via an input interface of a car navigation device mounted on the vehicle, the portable device specified by the portable device ID registered in the table and the portable device are possessed according to the instruction input. 14. The vehicle keyless entry system according to claim 9, wherein the vehicle keyless entry system is configured to update a relationship with user information. Multiple mobile devices owned by the user,
An in-vehicle device that is mounted on a vehicle and that controls communication with the portable device and operation of the in-vehicle equipment;
A plurality of antennas that are associated one-to-one with the receivable area inside the vehicle and the receivable area outside the vehicle, and
The vehicle-mounted device is an antenna that is a relationship between a portable device ID that is a unique identifier assigned to each portable device registered in the vehicle-mounted device and an operation authority for the vehicle-mounted device, and an operation requirement of the vehicle-mounted device A storage unit for storing a table in which a relationship with the ID is defined;
On-vehicle equipment in a keyless entry system for a vehicle configured to activate the on-vehicle equipment on the condition that authentication is established between the portable device and the on-vehicle equipment when there is an operation request for the on-vehicle equipment. Control method,
When there is an operation request for the in-vehicle equipment, the in-vehicle device generates a reply request signal for requesting a reply to the in-vehicle device and transmits the reply request signal from each of the plurality of antennas. Adding an antenna ID, which is a unique identifier assigned to the antenna that transmits the reply request signal, to the reply request signal, and
When the portable device receives the reply request signal, it generates a reply transmission signal, and adds the antenna ID added to the received reply request signal and the portable device ID to the transmission signal. Sending and
When the in-vehicle device receives the transmission signal, the antenna ID is set as an operation requirement by referring to the table based on the portable device ID and the antenna ID added to the received transmission signal. Checking whether or not the operation of the in-vehicle equipment is permitted for the portable device ID, and if the operation is permitted, the step of operating the in-vehicle equipment within a range in which the operation authority is permitted When,
A control method for on-vehicle equipment in a keyless entry system for vehicles.