JP6184119B2 - Keyless system for vehicles - Google Patents

Description

  The present invention relates to a vehicle keyless system configured to perform communication between a portable device and a vehicle-mounted device, and particularly when the portable device performs short-range wireless communication with the vehicle-mounted device with an intermittent period. The present invention relates to a vehicle keyless system that suppresses power consumption of a machine.

  In vehicles such as automobiles, it is becoming popular to equip a vehicle keyless system that allows a door lock to be operated without inserting a key into a keyhole (see, for example, Patent Document 1).

  In such a vehicle keyless system, it is necessary for a user to wear some electronic key (intelligent key) for operating the door lock.

  On the other hand, in the field of mobile phones, multifunctional mobile communication terminals such as smartphones having an excellent information processing function as a small personal computer are rapidly spreading.

JP 2012-184609 A

  As described above, the electronic key of the vehicle keyless system needs to be worn by the user when driving, so it is necessary to take the electronic key out of the house every time it is driven and However, there is a problem that the electronic key must be continuously managed, which is convenient but also troublesome.

  On the other hand, since mobile phones (including multi-function mobile communication terminals) have already penetrated into daily life as a necessity, it is no longer necessary to wear them all the time.

  Therefore, it is conceivable to use a multifunctional mobile communication terminal that is packed with excellent functions as an electronic key for the above-described vehicle keyless system. However, the multifunctional mobile communication terminal is used as an electronic key for a vehicle keyless system. There are many types that do not have a communication standard (for example, wireless communication using LF wave (long wave) or UHF wave (short wave)), and thus cannot be used as an electronic key as it is. was there.

In order to solve the above problem, the invention described in claim 1 is:
An in-vehicle device mounted on a vehicle and operating at least a door lock mechanism of the vehicle;
In a vehicle keyless system comprising a portable device that is portable by a user and capable of wireless communication with the in-vehicle device,
The portable device is configured to perform short-range wireless communication with the in-vehicle device having an intermittent period,
At least one of the vehicle, the in-vehicle device, and the portable device includes at least one positioning unit capable of measuring the position of the vehicle and the position of the portable device using a satellite positioning system. And
The portable device monitors the distance between the vehicle and the portable device based on the position of the vehicle and the position of the portable device measured by the positioning unit;
In accordance with the distance, an intermittent cycle adjustment unit that adjusts the intermittent cycle of short-range wireless communication performed on the vehicle-mounted device is provided , and the intermittent cycle adjustment unit sets the intermittent cycle in three or more stages or steplessly. It can be changed .
The invention described in claim 2 is the above,
The intermittent period adjustment unit is
A vehicle position storage unit that stores the position of the vehicle measured by the positioning unit;
A distance monitoring unit that monitors the distance between the vehicle and the portable device based on the position of the vehicle stored in the vehicle position storage unit and the position of the portable device measured by the positioning unit;
And an intermittent period setting unit that changes an intermittent period of short-range wireless communication performed with respect to the in-vehicle device according to the distance monitored by the distance monitoring unit.
The invention described in claim 3 is the above,
At least when driving
The position of the vehicle is measured by a positioning unit installed in the vehicle or the in-vehicle device,
The in-vehicle device transmits the measured position of the vehicle to the portable device,
The portable device stores the transmitted position of the vehicle.
The invention described in claim 4 is the above,
At least when driving
Measure the position of the vehicle with a positioning unit installed in the portable device,
The portable device stores the measured position of the vehicle.
The invention described in claim 5 is the above,
At least when the position of the vehicle changes
The portable device is configured such that the position of the vehicle after the change is measured by a positioning unit installed in the portable device, and can be transmitted to another portable device registered in the in-vehicle device,
The other portable device is configured to rewrite the stored vehicle position with the changed vehicle position transmitted by the portable device.
The invention described in claim 6 is the above,
At least when the position of the vehicle changes
The in-vehicle device has changed the position of the vehicle or the position of the vehicle,
It is configured to be able to transmit to other portable devices registered in the in-vehicle device,
Other mobile devices store the stored vehicle position,
Rewrite the changed vehicle position transmitted by the in-vehicle device,
Receiving the position of the vehicle after the change stored in the in-vehicle device, or rewriting the position of the vehicle after the change,
Or
It is characterized in that the position of the changed vehicle is measured again by a positioning unit installed in the portable device and rewritten to the measured position of the vehicle.
The invention described in claim 7 is the above,
The portable device is
The position of the portable device measured by the positioning unit is
Stopping the short-range wireless communication when going out of the communication area of the short-range wireless communication with the vehicle,
The short-range wireless communication is started when entering a communication area of the short-range wireless communication with the vehicle.
The invention described in claim 8 is the above,
The short-range wireless communication device is a Bluetooth communication device (BlueTooth (registered trademark)) mounted on a portable device,
The positioning unit is at least a GPS device mounted on the portable device.
The invention described in claim 9 is the above,
The portable device is characterized in that an intermittent cycle of positioning of the position of the portable device by the positioning unit is adjusted according to a distance between the vehicle and the portable device.
The invention described in claim 10 is the above,
The portable device is any of a multi-function mobile terminal, a multi-function mobile phone, and a dedicated mobile terminal provided with the short-range wireless communication device and the positioning unit.
The invention described in claim 11 is the above,
The in-vehicle device indicates the end of operation,
It is configured to detect by at least one of a vehicle speed 0 signal, a shift P range signal, a parking brake signal, an engine stop signal, an ignition off signal, an accessory switch off signal, a door lock signal, and a door open / close signal. And
The invention described in claim 12 is:
An in-vehicle device mounted on a vehicle and operating at least a door lock mechanism of the vehicle;
In a vehicle keyless system comprising a portable device that is portable by a user and capable of wireless communication with the in-vehicle device,
At least the portable device includes at least one positioning unit capable of measuring the position of the vehicle using a satellite positioning system;
At least when the position of the vehicle changes
The portable device is configured such that the position of the vehicle after the change is measured by a positioning unit installed in the portable device, and can be transmitted to another portable device registered in the in-vehicle device,
The other portable device is configured to rewrite the stored vehicle position with the changed vehicle position transmitted by the portable device.

According to the first aspect of the present invention, the following operational effects can be obtained by the above configuration. That is, by adjusting the intermittent period of wireless communication of the portable device according to the distance between the vehicle and the portable device, power consumption due to short-range wireless communication is prevented, and the battery capacity of the portable device is reduced. A battery exhaustion can be suppressed.
Further, by adjusting the intermittent period of wireless communication of the portable device according to the distance between the vehicle and the portable device, it is possible to prevent a decrease in responsiveness when operating the door lock mechanism.
In particular, when the distance between the vehicle and the portable device is short, the intermittent cycle is shortened, and when the distance between the vehicle and the portable device is far, the intermittent cycle is lengthened, thereby effectively exerting the above effect. Can do.
Furthermore, the intermittent cycle adjustment unit can change the intermittent cycle in three or more stages or in a stepless manner.
According to the second aspect of the present invention, the following effects can be obtained by the above configuration. That is, the vehicle position storage unit stores the position of the vehicle measured by the positioning unit.
The distance monitoring unit monitors the distance between the vehicle and the portable device based on the position of the vehicle stored in the vehicle position storage unit and the position of the portable device measured by the positioning unit.
The intermittent cycle setting unit changes the intermittent cycle of short-range wireless communication performed on the in-vehicle device according to the distance between the vehicle monitored by the distance monitoring unit and the portable device.
By doing in this way, the structure which can specifically adjust the intermittent period of short-distance wireless communication of a portable device can be obtained.
According to the third aspect of the present invention, the following operational effects can be obtained by the above configuration. That is, at least at the end of driving, the position of the vehicle is measured by a positioning unit installed in the vehicle or in-vehicle device. Then, the in-vehicle device transmits the measured position of the vehicle to the portable device. The portable device stores the position of the vehicle transmitted from the in-vehicle device. Thus, the position of the vehicle is measured by the positioning unit on the vehicle side, and the above-described function (adjustment of the intermittent period of short-range wireless communication of the portable device) can be realized.
According to the invention described in claim 4, the following effects can be obtained by the above-described configuration. That is, at least at the end of driving, the position of the vehicle is measured by a positioning unit installed in the portable device.
The portable device stores the measured position of the vehicle. By doing in this way, even if the positioning unit is not provided on the vehicle side, the position of the vehicle can be measured by the positioning unit that the portable device has, so only by the positioning unit of the portable device The position of the vehicle is measured, and the above-described function (adjustment of the intermittent period of short-range wireless communication of the portable device) can be realized.
According to the fifth aspect of the present invention, the following effects can be obtained by the above configuration. That is, at least when the position of the vehicle is changed, the portable device (the portable device used for driving) measures the position of the vehicle after the change with a positioning unit installed in the portable device, Send to other registered mobile devices.
Then, the other portable device rewrites the stored vehicle position to the changed vehicle position transmitted by the portable device (the portable device used for driving).
By doing in this way, even when there is a change in the position of the vehicle, it is possible to perform effective position change countermeasures for other registered portable devices. In addition, since the portable devices are notified of changes in the position of the vehicle, the burden on the vehicle-mounted device can be reduced.
According to the sixth aspect of the present invention, the following effects can be obtained by the above configuration. That is, at least when the position of the vehicle is changed, the in-vehicle device transmits to the other portable device registered in the in-vehicle device that the position of the vehicle after the change or the position of the vehicle has been changed.
Then, the other portable device rewrites the stored vehicle position to the changed vehicle position transmitted by the in-vehicle device. Alternatively, the other portable device receives the changed position of the vehicle stored in the in-vehicle device and rewrites the changed position of the vehicle. Alternatively, the other portable device remeasures the position of the vehicle after the change by the positioning unit installed in the portable device, and rewrites the measured position of the vehicle.
By doing in this way, even when there is a change in the position of the vehicle, it is possible to perform effective position change countermeasures for other registered portable devices.
According to the seventh aspect of the present invention, the following effects can be obtained by the above configuration. That is, the portable device stops short-range wireless communication when the position of the portable device measured by the positioning unit goes out of the communication area for short-range wireless communication with the vehicle, and the communication area for short-range wireless communication with the vehicle. Short-distance wireless communication starts when entering inside. As a result, the battery consumption of the portable device can be reduced outside the communication area as much as the short-range wireless communication is stopped. Further, since the position of the portable device can be measured by the positioning unit of the portable device itself, short-range wireless communication can be reliably started (restarted) when entering the communication area. Therefore, it is possible to prevent the short-range wireless communication between the vehicle and the portable device from being affected.
According to the invention described in claim 8, the following effects can be obtained by the above-described configuration. That is, since the short-range wireless communication device is a Bluetooth communication device (BlueTooth (registered trademark)) mounted on a portable device, the Bluetooth communication device (BlueTooth (registered trademark)) that has been rapidly spread in recent years is used as it is. Thus, the door lock device can be operated.
Since the positioning unit is at least a GPS device mounted on a portable device, the position of the portable device can be accurately measured using the GPS device. Since this GPS device is currently most popular in Japan, it is most convenient to use for the positioning unit. Note that the position of the vehicle can be measured by the GPS device mounted on the vehicle or the GPS device mounted on the portable device as described above.
According to the ninth aspect of the present invention, the following effects can be obtained by the above-described configuration. That is, the portable device further reduces the power consumption of the portable device by adjusting the intermittent period (positioning cycle) of positioning of the portable device by the positioning unit according to the distance between the vehicle and the portable device. It will be possible to suppress.
According to the tenth aspect of the present invention, the following effects can be obtained by the above configuration. That is, if a short-range wireless communication device and a positioning unit are provided, the door lock device can be operated by various portable devices such as a multi-function mobile terminal, a multi-function mobile phone, and a dedicated mobile terminal. be able to. Thereby, for example, a smartphone or the like can be used as a portable device of the vehicle keyless system, and the use of the smartphone can be expanded and the number of belongings when going out can be reduced.
According to the eleventh aspect of the present invention, the following effects can be obtained by the above configuration. That is, by using at least one of a vehicle speed 0 signal, a shift P range signal, a parking brake signal, an engine stop signal, an ignition off signal, an accessory switch off signal, a door lock signal, and a door open / close signal, It is possible to reliably detect the stoppage of operation. It can also detect the opening and closing of doors and getting off.
According to the twelfth aspect of the present invention, the following effects can be obtained by the above-described configuration. That is, at least when the position of the vehicle is changed, the portable device (the portable device used for driving) measures the position of the vehicle after the change with a positioning unit installed in the portable device, Send to other registered mobile devices.
Then, the other portable device rewrites the stored vehicle position to the changed vehicle position transmitted by the portable device (the portable device used for driving).
By doing in this way, even when there is a change in the position of the vehicle, it is possible to perform effective position change countermeasures for other registered portable devices. In addition, since the portable devices are notified of changes in the position of the vehicle, the burden on the vehicle-mounted device can be reduced.

1 is a schematic overall configuration diagram of a vehicle keyless system according to an embodiment of the present invention. It is a block diagram which shows the structure of the keyless system for vehicles of FIG. It is a top view which shows the communication area of near field communication. It is a graph which shows the relationship between distance and an intermittent period. It is a graph which shows the relationship between the distance concerning a modification, and an intermittent period. It is a sequence diagram which shows the relationship between the motion of a vehicle equipment and the motion of a portable device. It is a flowchart which shows a motion of vehicle equipment. It is a flowchart which shows a motion of a portable machine.

Hereinafter, the present embodiment and examples embodying the present embodiment will be described in detail with reference to the drawings.
1 to 8 show this embodiment and its modifications.

<Configuration> The configuration will be described below.
As shown in FIG. 1, a vehicle keyless system 2 that allows a door lock to be operated without inserting a key into a keyhole is provided for a vehicle 1 such as an automobile.

  The vehicle keyless system 2 is mounted on the vehicle 1 and is portable between an in-vehicle device 6 capable of operating at least the door lock mechanism 5 of the vehicle 1 and a user (occupant or the like). And a portable device 7 that performs wireless communication.

  Here, as a supplementary explanation, the above-mentioned “vehicle 1” is mainly intended for automobiles (passenger cars, buses, trucks, etc.) that can travel on public roads, but is operated by the vehicle keyless system 2. If it has 5, it will not restrict to this.

  There are various types of the above-described “vehicle keyless system 2”.

  In this case, the trigger switch 3 is installed on the outer portion of the vehicle 1, and the trigger signal 4 from the trigger switch 3 is input to the in-vehicle device 6, and the door lock mechanism 5 is automatically operated based on the trigger signal 4. Although it is assumed that the operation is performed passively, the configuration of the vehicle keyless system 2 is not limited to this.

  For example, without using the trigger switch 3, the door lock mechanism 5 can be automatically operated only by wireless communication between the in-vehicle device 6 and the portable device 7, or the portable device 7 can be operated with a lock operation button. The door lock mechanism 5 can be automatically operated using the operation of the lock operation button as a trigger.

  In FIG. 1, the trigger switch 3 and the like are provided only on the driver's seat side, but the trigger switch 3 and the like may be provided on the passenger seat side and the like.

  The above-mentioned “trigger switch 3” is literally a switch used as a trigger when operating the door lock mechanism 5. That is, when the door lock mechanism 5 is in the locked state, the unlocking state is achieved by operating the trigger switch 3, and, conversely, when the door lock mechanism 5 is in the unlocking state, the trigger switch 3 is operated to enter the locked state. This is a switch for generating a signal (trigger signal 4) that is a trigger for the control. The trigger switch 3 is called, for example, a request switch. The trigger switch 3 can be a mechanical switch, sensors, or the like.

  The above-described “trigger signal 4” is literally a signal generated from the trigger switch 3 and serves as a locking trigger or an unlocking trigger depending on the state of the door lock mechanism 5. The on / off state of the trigger signal 4 is set in the in-vehicle device 6 (a flag area in a storage device 12 (see FIG. 2) described later).

  The above-described “door lock mechanism 5” is not specifically illustrated in detail, but a drive device such as a mechanical lock mechanism provided inside the door of the vehicle 1 and a door lock actuator for driving the lock mechanism. And.

  The above-mentioned “on-vehicle device 6” is literally a controller for the door lock mechanism 5 mounted on the vehicle 1. This controller has at least a control device and a control program.

  As shown in FIG. 2, the control device includes at least a processing unit 11 including a CPU, a one-chip microcomputer, and a storage device 12 such as a memory.

  The storage device 12 stores at least a program area for storing and developing the above-described control program, a work area used when the control program performs processing and work, Data storage area for storing data (for example, the position of the in-vehicle device 6 and the position of the portable device 7), the identification codes (the in-vehicle device 6ID and the portable device 7ID) of the in-vehicle device 6 and the (multiple) portable devices 7. In addition, a flag area or the like in which flags for monitoring various states such as the vehicle 1, the vehicle-mounted device 6, the portable device 7, and the trigger switch 3 are set.

  The control program has a basic function as the vehicle keyless system 2, which is a function of unlocking or locking the door lock mechanism 5 by performing wireless communication between the in-vehicle device 6 and the portable device 7. A basic function unit 13 for performing the function and a specific function unit 14 for performing other specific functions are set. Such a basic function unit 13 and a specific function unit 14 are constructed inside the processing unit 16 by a control program.

  In addition to operating the door lock mechanism 5, the above-described vehicle-mounted device 6 uses an alarm device 15 or the like provided in the vehicle 1 as an event for alarming or alerting, or, for example, a welcome intention display Can be activated for various purposes such as: The operation of the alarm device 15 can be performed in cooperation with the operation of the door lock mechanism 5 or can be performed alone without being linked with the operation of the door lock mechanism 5. Such an alarm device 15 includes, for example, lamps 15a (and its controller) such as a turn signal lamp and a hazard lamp, an outside buzzer 15b, and the like. These can be operated individually or simultaneously.

  The above-mentioned “portable device 7” is literally a portable terminal device that can be carried by the user. The portable device 7 includes at least a control device and a control program.

  The control device includes at least a processing unit 16 including a CPU, a one-chip microcomputer, and a storage device 17 such as a memory.

  The storage device 17 includes at least a program area for storing and developing the above-described control program, a work area used when the control program performs processing and work, Data storage area for storing data (for example, the position of the in-vehicle device 6 and the position of the portable device 7), the identification codes (the in-vehicle device ID and the portable device ID) of the in-vehicle device 6 and the (multiple) portable devices 7. In addition, a flag area or the like in which flags for monitoring various states such as the vehicle 1, the vehicle-mounted device 6, the portable device 7, and the trigger switch 3 are set.

The control program has a function of unlocking or locking the door lock mechanism 5 by performing wireless communication between the in-vehicle device 6 and the portable device 7, which is a basic function of the vehicle keyless system 2. A basic function unit 18 for executing the function and an auxiliary function unit (or a specific function unit) 19 for executing other auxiliary functions are set. The basic function unit 18 and the specific function unit 19 are constructed inside the processing unit 16 by a control program.

  The portable device 7 described above mainly has a function (door lock function) for operating the door lock mechanism 5, but has a function (engine key function) as an engine key of the vehicle 1, for example. May be. Of course, an ordinary key (such as a mechanical key) can be used as the engine key of the vehicle 1.

  The above-described portable device 7 is provided with a display device 7a and an input device 7b. In this case, the display device 7a is a monitor device such as a liquid crystal display device or an organic EL display device. As the display device 7a, for example, a large monitor device that covers almost the entire surface of the portable device 7 can be used. On the display device 7a, for example, a display screen such as a map, a keyboard, software operation buttons, or an input screen can be displayed. The input device 7b is a transparent touch sensor panel. And this touch sensor panel comprises the touch panel which can be input and displayed by installing in the surface of a monitor apparatus.

  The “wireless communication between the in-vehicle device 6 and the portable device 7” includes each other's identification code (the in-vehicle device ID and the portable device ID). The in-vehicle device 6 can register a plurality of portable devices 7 in the data storage area of the storage device 12 and can give priority to the registered plurality of portable devices 7. Connection setting (pairing) is made in advance between the in-vehicle device 6 and the portable device 7. In addition, the portable device 7 stores the identification code (portable device) of the other portable device 7 in the data storage area of the storage device 17 so that the other portable device 7 registered in the in-vehicle device 6 can be stored and identified. ID) may be registered.

  For example, when the trigger signal 4 from the trigger switch 3 is input, the in-vehicle device 6 transmits a request signal req including the identification code (in-vehicle device ID) of the in-vehicle device 6 to the portable device 7. Yes.

  The portable device 7 is adapted to receive the request signal req from the in-vehicle device 6 at regular intervals, and receives the request signal req from the in-vehicle device 6 and confirms the identification code of the in-vehicle device 6. At this time, the response signal ans including the identification code (portable device ID) of the portable device 7 is transmitted to the in-vehicle device 6. Then, when the in-vehicle device 6 confirms the identification code of the portable device 7 in the received response signal ans, the in-vehicle device 6 operates the door lock mechanism 5 assuming that wireless communication has been correctly established.

  Alternatively, the in-vehicle device 6 always transmits a request signal req every fixed period, and the portable device 7 receives the request signal req from the in-vehicle device 6 every fixed period (unique different from that of the in-vehicle device 6). After the wireless communication is correctly established between the in-vehicle device 6 and the portable device 7 as described above, the in-vehicle device 6 waits for the trigger signal 4 from the trigger switch 3 to be input, and then opens the door lock mechanism 5. It is good also as an operation procedure which makes it operate.

  In any of the above cases, the in-vehicle device 6 and the portable device 7 are operated according to their own operation cycles.

  The above is a basic function (function by the basic function part 13 and the basic function part 18) as the keyless system 2 for vehicles.

  Note that the in-vehicle device 6 and the portable device 7 perform communication different from the above (for example, data exchange and command signal transmission) in order to execute an auxiliary function as described later after the establishment of wireless communication. Etc.).

  In addition to the basic configuration as described above, the present embodiment has the following configuration.

(Configuration 1)
The portable device 7 is configured to perform short-range wireless communication with the in-vehicle device 6 with an intermittent period C.
Of the vehicle 1, the in-vehicle device 6, and the portable device 7, at least the portable device 7 can measure the position of the vehicle 1 and the position of the portable device 7 using a satellite positioning system. At least one positioning unit 21 to 23 is provided.
The portable device 7 monitors the distance D between the vehicle 1 and the portable device 7 based on the position of the vehicle 1 and the position of the portable device 7 measured by the positioning units 21 to 23, In accordance with the distance D, an intermittent period adjusting unit 24 that adjusts the intermittent period C of short-range wireless communication performed on the in-vehicle device 6 is provided.

(Supplementary explanation 1)
Here, the above-mentioned “portable device 7” includes both the portable device 7 used for driving and the portable device 7 not used for driving. Alternatively, all portable devices 7 registered in the in-vehicle device 6 are targeted.

  The “intermittent cycle C” described above is an operation cycle (communication cycle) unique to the portable device 7 described above. When the intermittent cycle C of the portable device 7 is shortened, the responsiveness of the vehicle keyless system 2 becomes high (good). Conversely, when the intermittent cycle C of the portable device 7 is lengthened, the responsiveness of the vehicle keyless system 2 is increased. descend. On the other hand, if the intermittent cycle C of the portable device 7 is shortened, the power (battery) consumption of the portable device 7 is increased, and conversely, if the intermittent cycle C of the portable device 7 is lengthened, the power consumption of the portable device 7 is suppressed. It is done.

  The above-mentioned “short-range wireless communication” is literally wireless communication suitable for short-range communication. For this purpose, the in-vehicle device 6 and the portable device 7 are provided with short-range wireless communication units 25 and 26, respectively. The short-range wireless communication units 25 and 26 include transmission units 25a and 26a, reception units 25b and 26b, and antenna units 25c and 26c, respectively.

  In this case, near field communication assumes that the communication area X (see FIG. 3) is approximately several meters to several tens of meters or less. Various types of short-range wireless communication such as BlueTooth (registered trademark), Wi-Fi, ZigBee, and wireless LAN are known.

  The above-mentioned “position of the vehicle 1” is literally a position at the end of the operation of the vehicle 1. The end of operation is determined by the operation end determination unit 27. The operation end determination unit 27 will be described later. Further, the position of the vehicle 1 is mainly measured by the vehicle position measurement unit 28 (or the vehicle position measurement instruction unit). The measured position of the vehicle 1 may be stored in the data storage area of the storage device 12 of the in-vehicle device 6. The vehicle position measuring unit 28 will be described later. The driving end determination unit 27 and the vehicle position measurement unit 28 are provided in the in-vehicle device 6.

  The above-mentioned “position of the portable device 7” is literally the current position of the portable device 7. The position of the portable device 7 is measured by the portable device position measuring unit 29. The portable device position measuring unit 29 is for causing the positioning unit 23 of the portable device 7 to measure the position of the portable device 7. The measured position of the portable device 7 may be stored in a data storage area of the storage device 17 of the portable device 7.

  The above-mentioned “positioning units 21 to 23 (satellite positioning units 21 to 23)” are literally for measuring positions using a satellite positioning system. There are various satellite positioning systems such as GPS (Global Positioning System) in the United States and Galileo (positioning system) in Europe.

  As the positioning unit 21, the car navigation system 31 mounted on the vehicle 1 can be used. In this case, the in-vehicle device 6 enables communication (wireless communication or wired communication) with the car navigation system 31. The car navigation system 31 preferably includes a communication module 32 that can communicate with an external wireless communication network (for example, a road traffic information network).

  The positioning unit 22 may or may not be provided for the vehicle-mounted device 6.

  The positioning unit 23 is preferably provided in the portable device 7 (such as a multifunctional portable terminal described later). In this embodiment, it is necessary that at least one portable device 7 includes the positioning unit 23.

  As will be described later, when the portable device 7 measures the position of the portable device 7 (or the position of the vehicle 1) by the positioning unit 23, the power of the portable device 7 is consumed. In order to suppress the power consumption, the positioning by the positioning unit 23 is preferably intermittent. That is, the positioning by the positioning unit 23 is preferably performed with an intermittent period (positioning period).

  The above-described “intermittent cycle adjustment unit 24” is literally a mechanism for adjusting the intermittent cycle C of the short-range wireless communication of the portable device 7 with respect to the vehicle-mounted device 6 described above. The intermittent period adjustment unit 24 will be described later.

  In this case, as shown in FIGS. 3 and 4, the intermittent cycle C is shortened when the distance D between the vehicle 1 and the portable device 7 is short (inner area X1) in the communication area X for short-range wireless communication. However, when the distance D between the vehicle 1 and the portable device 7 is far (outer area X2), it is preferable to make the intermittent cycle C longer (C2). In addition, you may make it display the map etc. (thing like FIG. 3) which shows the distance D between the vehicle 1 and the portable device 7 on the display apparatus 7a.

  The inner area X1 described above is the inside of a circle whose radius is a short distance D1 that allows a user to approach the vehicle 1 quickly. For example, the radius may be in the range of about 5 m or less. However, the size of the inner area X1 is not limited to 5 m.

  The short intermittent cycle C1 is set to a cycle that does not deteriorate the responsiveness of the vehicle keyless system 2, for example. This short intermittent period C1 is the originally planned normal mode.

  The long intermittent period C2 is set to a period that can effectively suppress power consumption even if the responsiveness of the vehicle keyless system 2 is slightly deteriorated, for example. This long intermittent period C1 is a power saving mode or an energy saving mode.

  In FIG. 4, the two-stage values of the short intermittent period C1 and the long intermittent period C2 are taken. However, the value is a multistage value of three or more stages, or there is no value from the near side to the far side. It can also be a value that continuously changes (becomes longer) in stages.

(Configuration 2)
As shown in FIG. 2, the intermittent period adjustment unit 24 stores a vehicle position storage unit 35 (or a vehicle position measurement storage unit) that stores the position of the vehicle 1 measured by the positioning units 21 to 23, and
The distance D between the vehicle 1 and the portable device 7 based on the position of the vehicle 1 stored in the vehicle position storage unit 35 and the position of the portable device 7 measured by the positioning units 21 to 23. A distance monitoring unit 36 for monitoring
According to the distance D monitored by the distance monitoring unit 36, an intermittent cycle setting unit 37 that changes the intermittent cycle C of short-range wireless communication performed on the vehicle-mounted device 6 is provided.

(Supplementary explanation 2)
Here, the above-described “vehicle position storage unit 35” literally stores the measured position of the vehicle 1 in the data storage area of the storage device 17 of the portable device 7. The position of the vehicle 1 is measured mainly by an instruction or command from the vehicle position measuring unit 28.

  The above-mentioned “distance monitoring unit 36” is literally for continuously calculating the distance D between the vehicle 1 and the portable device 7 and continuously monitoring the obtained distance D.

  The above-described “intermittent cycle setting unit 37” literally sets the intermittent cycle C. The intermittent period C is set, for example, by setting a specific value (the above short distance D1) as a threshold (intermittent period setting threshold), depending on the magnitude relationship between the monitored distance D and the threshold (short distance D1). C may be set, or a control table that defines the relationship between the distance D and the intermittent period C may be provided in advance, and the intermittent period C may be set according to the control table. Note that the above-described threshold value and control table may be defined in the control program of the portable device 7 or may be stored in the data storage area of the storage device of the portable device 7. Further, the threshold value and the control table may be changed later.

  Note that such functions of this embodiment can be configured mainly using hardware (control device) and software (control program) of the portable device 7.

  However, the vehicle-mounted device 6 and the portable device 7 can be configured to perform distributed processing.

  Furthermore, some or all of the functions of the in-vehicle device 6 and the portable device 7 in this embodiment can be substituted using a cloud computer service on the network. In this case, the “on-vehicle device 6” or “portable device 7” includes a cloud computer on the network. As described above, by using the cloud computer service, for example, various kinds of position information are shared on the network, the position information is exchanged between the in-vehicle device 6 and the portable device 7, and the positions of the portable devices 7 are exchanged. Information can be exchanged more easily.

  In order to use the cloud computer service, the “on-vehicle device 6” and the “portable device 7” can be connected to a network. The “on-vehicle device 6” can be directly or indirectly connected to a network (such as the Internet or a road traffic information network) via the car navigation system 31 described above. Further, the “portable device 7” can be connected to a network (such as the Internet) by using a communication function provided by the “mobile device 7”. The networks to which the “on-vehicle device 6” and the “portable device 7” can be connected are not necessarily the same. Further, the cloud computer services used by the “on-vehicle device 6” and the “portable device 7” are not necessarily the same.

(Configuration 3)
At least at the end of driving, the position of the vehicle 1 is measured by the positioning units 21 and 22 installed in the vehicle 1 or the in-vehicle device 6, and the in-vehicle device 6 determines the measured position of the vehicle 1 in the portable device. 7, the portable device 7 stores the transmitted position of the vehicle 1.

(Supplementary explanation 3)
This configuration is mainly intended for the case where positioning units 21 and 22 are provided on the vehicle 1 side.

  Here, the above-mentioned “at the end of driving” literally means when the user ends driving. The end of operation is determined by the operation end determination unit 27 described above. The operation end determination unit 27 will be described later. In addition, at times other than when the operation ends, for example, when the vehicle is temporarily stopped, for example, when the operation ends, the position of the vehicle 1 may be sequentially measured and updated to the latest one. .

  Then, the vehicle position measuring unit 28 measures the position of the vehicle 1 by the positioning units 21 and 22 on the vehicle 1 side.

  The above-mentioned “transmission” is performed from the communication module 32 of the in-vehicle device 6 or the car navigation system 31 (or a cloud computer service that performs the function of the in-vehicle device 6 or the car navigation system 31), or the like. Sending to a cloud computer service that acts as a function) is widely included. In the following description, it is assumed that communication such as “transmission” can include communication by the cloud computer service as described above. The same applies to transmission between portable devices 7.

(Configuration 4)
At least at the end of driving, the position of the vehicle 1 is measured by the positioning unit 23 installed in the portable device 7, and the portable device 7 stores the measured position of the vehicle 1.

(Supplementary explanation 4)
This configuration is mainly intended for the case where the positioning units 21 and 22 are not provided on the vehicle 1 side. However, the positioning units 21 and 22 may be provided on the vehicle 1 side.

  At the end of the operation, the position of the portable device 7 measured by the positioning unit 23 of the portable device 7 by the portable device position measuring unit 29 is used as the position of the vehicle 1. Even in this way, an accurate position of the vehicle 1 can be obtained.

  It should be noted that the measurement of the position of the vehicle 1 and the measurement instruction as described above are mainly performed by an instruction or command from the vehicle position measurement unit 28 provided in the in-vehicle device 6. When the position of the vehicle 1 is measured by the portable device 7, it can be performed by an instruction or command from the vehicle position storage unit 35 described above. Alternatively, the basic function unit 13 and the basic function unit 18 of the in-vehicle device 6 and the portable device 7 can be appropriately or periodically performed as those within the basic function range.

  When the position of the vehicle 1 is measured by the positioning unit 23 of the portable device 7, the position of the vehicle 1 is transmitted from the portable device 7 to the in-vehicle device 6 by communication as necessary. The position of the vehicle 1 sent from the portable device 7 is preferably stored in the data storage area of the storage device 12 of the in-vehicle device 6.

  Furthermore, at the end of driving, the in-vehicle device 6 transmits the measured position of the vehicle 1 to all the registered portable devices 7 in addition to the portable device 7 (the portable device 7 used for driving). Also good. Alternatively, the portable device 7 that has measured the position of the vehicle 1 at the end of driving may directly transfer the position of the vehicle 1 to another registered portable device 7 to change the memory. Hereinafter, the correspondence to other portable devices 7 will be described.

(Configuration 5)
At least when the position of the vehicle 1 is changed, the portable device 7 (the portable device 7 used for driving) measures the position of the vehicle 1 after the change by the positioning unit 23 installed in the portable device 7. It is configured to be able to transmit to another portable device 7 registered in the in-vehicle device 6.
The other portable device 7 is configured to rewrite the stored position of the vehicle 1 with the changed position of the vehicle 1 transmitted by the portable device 7 (the portable device 7 used for driving). The

(Supplementary explanation 5)
Here, “the position of the vehicle 1 is changed” described above is that the vehicle 1 has moved from the stored position. The change of the position of the vehicle 1 is determined by the driving end determination unit 27. The position of the vehicle 1 is changed when the vehicle 1 is driven using another portable device 7 or when the vehicle 1 is driven using a key (such as a mechanical key) without using the portable device 7. This is a problem for other portable devices 7. Of course, the key (such as a mechanical key) does not have the positioning unit 23.

  The above-mentioned “position of the vehicle 1 after the change” is instructed by the vehicle position measurement unit 28 (or the vehicle position storage unit 35 (vehicle position measurement unit) of another portable device 7), and the positioning is performed. Measurement is performed by the units 21 to 23.

  The above “transmission” is performed by the short-range wireless communication units 25 and 26, the communication module 32 of the car navigation system 31, and the like (including a cloud computer service).

  The above-mentioned “other portable device 7 registered in the vehicle-mounted device 6” is a portable device 7 that is not used for driving. In this case, the identification codes of the in-vehicle device 6 and the portable device 7 (including other portable devices 7) may be shared by the above-described cloud computer service.

  Note that the other portable device 7 described above (the portable device 7 that has not been used for driving) receives the position of the vehicle 1 from the in-vehicle device 6 or the portable device 7 that has been used for driving. Since it is temporarily unknown whether the distance D of the vehicle has become closer or farther away, the responsiveness of the vehicle keyless system 2 does not deteriorate at least until the distance D with the vehicle 1 is recalculated. As described above, the intermittent cycle C may be temporarily returned to the short normal mode. The portable device 7 in which the storage of the position of the vehicle 1 has been changed and the above-described distance D has been recalculated adjusts the intermittent period C again based on the changed position of the vehicle 1. Alternatively, the other portable device 7 may reset the intermittent period C to the short normal mode on the assumption that the distance D to the vehicle 1 is unclear until it is actually used for driving. good. The above can be similarly performed in the following description.

  In each of the above cases, when there are a plurality of positioning units 21 to 23 that can detect the position of the vehicle 1 in the vehicle 1, the in-vehicle device 6, the portable device 7, etc., the most accurate of these Only one thing is used, or it is measured by each of the positioning units 21 to 23 separately to unify data at a certain timing (to the most accurate one, etc.), or measured at different timings. Then, the data can be updated (updated) at a certain timing. Such correction and management of the position of the vehicle 1 can be most effectively performed when information is shared on the network using the above-described cloud computer service. The above can be similarly performed in the following description.

(Configuration 6)
As described above, at least when the position of the vehicle 1 is changed, the in-vehicle device 6 (or the portable device 7 used for driving) may be changed in the position of the vehicle 1 after the change or the position of the vehicle 1. The change is configured to be transmitted to another portable device 7 registered in the in-vehicle device 6.
The other portable device 7 stores the stored position of the vehicle 1 as
As described above, the position of the changed vehicle 1 transmitted by the in-vehicle device 6 is rewritten (case 1),
Whether the position of the changed vehicle 1 stored in the in-vehicle device 6 is received and rewritten to the changed position of the vehicle 1 (case 2);
Alternatively, the position of the changed vehicle 1 is measured again by the positioning unit 23 installed in the portable device 7 and rewritten to the measured position of the vehicle 1 (case 3).

(Supplementary explanation 6)
Here, “the position of the vehicle 1 is changed”, “the position of the vehicle 1 after the change”, and “transmission” are the same as described above.

  The above-mentioned “other portable device 7 registered in the vehicle-mounted device 6” is a portable device 7 that is not used for driving.

  The case 1 described above is substantially the same as that described in the configurations 3 and 4 described above. In this case, the in-vehicle device 6 can eliminate the need to store the position of the vehicle 1.

  The case 2 described above stores the position of the vehicle 1 measured by the positioning unit 23 of the portable device 7 used for driving in the in-vehicle device 6, particularly when the positioning units 21 and 22 are not provided on the vehicle 1 side. This corresponds to the case where only the change of the position of the vehicle 1 is transmitted to the other portable device 7.

  The case 3 described above is particularly suitable when the positioning unit 21 or 22 is not provided on the vehicle 1 side and the position of the vehicle 1 is changed using a key (mechanical key or the like), that is, the vehicle 1 after movement. This corresponds to the case where only the change of the position of the vehicle 1 is transmitted to another portable device 7 when the position of the vehicle 1 cannot be measured or stored.

  The above-mentioned “re-measure the position of the vehicle 1” means that, for example, when the operation is performed with a key (mechanical key or the like) and only the fact that the position of the vehicle 1 is changed is transmitted, 7 is a case where the position of the vehicle 1 after the change is re-measured. However, with the above-described configuration, the other portable device 7 cannot be automatically measured. A person (user) can be prompted to perform an operation of measuring the position of the vehicle 1 after the change. For example, when the other portable device 7 is a smartphone (multifunctional mobile phone) as described later, guidance or the like is generated through a screen display, an audio signal, or the like.

  Then, the user of the other portable device 7 operates the other portable device 7 (icons, operation buttons, etc. displayed on the display screen thereof) while approaching the vehicle 1 when driving next time. Thus, the position of the vehicle 1 after the change is measured.

  The other portable device 7 that has measured the position of the vehicle 1 preferably stores the measured position of the vehicle 1 in the in-vehicle device 6.

  In addition, in order to eliminate the above-described trouble, when the vehicle is operated with a key (mechanical key or the like) and only the fact that the position of the vehicle 1 has been changed is transmitted, the other mobile device that has first approached the vehicle 1 is transmitted. The machine 7 may be configured to automatically measure the position of the vehicle 1 and store it in the in-vehicle machine 6. When the storage of the position of the vehicle 1 is changed, the in-vehicle device 6 or the portable device 7 may transmit the changed position of the vehicle 1 to each other portable device 7. Alternatively, when driving is performed with a key (such as a mechanical key) and only the fact that the position of the vehicle 1 has been changed is transmitted, the other portable device 7 resets the adjustment of the intermittent period C, and is uniform. The intermittent cycle C1 (normal mode) may be short. In the case where the position of the vehicle 1 is shared on the network, such a complicated operation can be eliminated.

(Configuration 7)
As shown in FIG. 5, the portable device 7 has a position of the portable device 7 measured by the positioning units 21 to 23 (mainly the positioning unit 23) in the communication area X of the short-range wireless communication with the vehicle 1. The short-range wireless communication is stopped when going outside (region Y) of the vehicle, and the short-range wireless communication is started when entering the communication area X of the short-range wireless communication with the vehicle 1. The

(Supplementary explanation 7)
Here, the above-mentioned “outside of the communication area X” literally means the area Y outside the communication area X of the short-range wireless communication.

  The above-mentioned “inside of communication area X” is literally an area inside communication area X of short-range wireless communication.

  “Stop near field communication” described above is to set the intermittent period C of the portable device 7 to zero.

  Note that the distance D at which short-range wireless communication is stopped may be slightly inward or outward with respect to the communication area X as illustrated.

  Stopping and starting of short-range wireless communication by the communication area X can be controlled by the distance monitoring unit 36 and the intermittent period setting unit 37 described above.

(Configuration 8)
The short-range wireless communication device is a Bluetooth communication device (BlueTooth (registered trademark)) mounted on the portable device 7.
The positioning units 21 to 23 are at least GPS devices mounted on the portable device 7.

(Supplementary explanation 8)
Here, the above-mentioned “Bluetooth communication device” is literally a device for performing Bluetooth communication, and at present, the Bluetooth module in the form of an IC chip is used as the in-vehicle device 6 or the portable device 7 (the circuit board). By mounting, it can be used easily. The Bluetooth module includes a transmission unit, a reception unit, and an antenna unit. However, the antenna unit may be externally attached to increase sensitivity.

  Here, Bluetooth is one of the short-range wireless communication standards between digital devices, and uses a 2.4 GHz band radio wave to exchange simple information within a range of several meters to several tens of meters. It is. Due to the recent high penetration rate and the optimal communication area X, it is considered to be most suitable for use in the vehicle keyless system 2. Bluetooth is already used, for example, for wireless communication between a personal computer, a keyboard and a mouse, and wireless communication between an in-vehicle audio and a portable music player. Note that the Bluetooth communication consumes more power than the above-described wireless communication using LF waves (long waves).

  The above-mentioned “GPS device”, for example, receives signals transmitted from several artificial satellites in the sky, and measures an accurate position by using a slight time difference between transmission and reception. (Global Positioning System). This GPS device is currently the most popular positioning units 21 to 23 in Japan. Similar to the above-described Bluetooth communication device, this GPS device can be easily used by mounting a GPS module in the form of an IC chip on the in-vehicle device 6 or the portable device 7 (the circuit board). .

(Configuration 9)
Furthermore, preferably, the portable device 7 adjusts the intermittent period (positioning cycle) of positioning of the position of the portable device 7 by the positioning unit 23 according to the distance D between the vehicle 1 and the portable device 7. .

(Supplementary explanation 9)
Positioning by the positioning unit 23 (GPS device or the like) can be performed continuously, but as described above, by making it intermittent, it is possible to suppress power consumption of the portable device 7. . In this configuration, the intermittent period (positioning period) of positioning by the positioning unit 23 is further adjusted according to the distance D in the same manner as the intermittent period C (communication period) described above.

  Adjustment of the positioning cycle by the positioning unit 23 (GPS device or the like) can be performed by, for example, the distance monitoring unit 36 or the intermittent cycle setting unit 37.

  For example, when the distance D between the vehicle 1 and the portable device 7 is long, the positioning cycle is lengthened to suppress power consumption, and the distance D between the vehicle 1 and the portable device 7 is short. In such a case, the positioning cycle is shortened so that the intermittent cycle C (communication cycle) can be adjusted quickly.

(Configuration 10)
The portable device 7 is one of a multi-function mobile terminal, a multi-function mobile phone, and a dedicated mobile terminal provided with the short-range wireless communication device and the positioning units 21 to 23.

(Supplementary explanation 10)
Here, the above-mentioned “multifunctional mobile terminal” is a mobile personal computer, a tablet-type terminal, a PDA, an electronic book, an electronic notebook, an electronic dictionary, a digital camera that has undergone remarkable evolution in recent years, and the like. In addition, various digital devices having a short-range wireless communication function, a gyro sensor, and a GPS function can be widely included.

  The above-mentioned “multi-function mobile phone” is a multi-function for smartphones equipped with various functions (information processing functions such as program execution and data processing, Internet functions, mail functions, etc.) and general mobile phones. It includes a short-range wireless communication function, a gyro sensor, and further a GPS function, such as a multi-function mobile phone.

  In the case of the above-described multi-function mobile terminal or multi-function mobile phone, each function described above is configured as software (control program) such as a “keyless terminal application” and is always activated. Can be used. Alternatively, the “keyless terminal application” described above may be used such that the user starts each time driving or the like and ends when the driving ends. Most of the functions described in this embodiment are mainly controlled by this keyless terminal application.

  The above-mentioned “dedicated mobile terminal” requires the above-mentioned short-range wireless communication function, gyro sensor, and further the GPS function for users who do not have the above-mentioned multi-function mobile terminal or multi-function mobile phone. A portable device 7 (so-called KeyFob) that has been specially developed as having a function can be used. However, as a dedicated mobile terminal, a simplified version without the GPS function may be separately prepared.

  In this case, the above-described portable device 7 is optimally used as a multi-function mobile phone such as a smartphone that is carried on a daily basis and rapidly spread.

(Configuration 11)
The in-vehicle device 6 determines the end of driving at least one of a vehicle speed 0 signal, a shift P range signal, a parking brake signal, an engine stop signal, an ignition off signal, an accessory switch off signal, a door lock signal, and a door open / close signal. Configured to detect by.

(Supplementary explanation 11)
Here, the above-described “vehicle speed 0 signal” is literally a signal indicating whether or not the vehicle speed is zero.

  The above-mentioned “shift P range signal” is literally a signal indicating whether or not the shift lever has entered the P (parking) range.

  The above-described “parking brake signal” is a signal that literally indicates whether the parking brake is on or off.

  The above-mentioned “engine stop signal” is literally a signal indicating whether or not the engine is stopped.

  The above-mentioned “ignition off signal” (IGN-OFF) is literally a signal indicating that the ignition switch is turned off.

  The above-described “accessory switch off signal” (ACC-OFF) is literally a signal indicating that the accessory switch is turned off.

  The above-described “door lock signal” is literally a signal indicating whether the door lock mechanism 5 is locked or unlocked.

  The above-described “door open / close signal” is literally a signal indicating whether the door is open or closed.

  These signals (signals for detecting the completion of driving, etc.) are detected by various sensors and electronic control units installed in each part of the vehicle 1 and are placed on an in-vehicle information communication network such as the CAN 300 provided in the vehicle 1. This is a signal transmitted to each part of the vehicle 1. Therefore, these signals can be easily obtained by connecting the in-vehicle device 6 to the above-described in-vehicle information communication network.

  And the driving | running | working completion judgment part 27 of the vehicle equipment 6 sets the state of each of these signals to the flag area | region provided in the memory | storage device 12, and checks driving | running | working completion | finish or alighting by checking the state of these flags. It is supposed to be judged.

  Alternatively, in the vehicle 1 equipped with a photographing device such as a camera capable of photographing the interior of the vehicle, it is possible to determine the end of driving or getting off by analyzing the image of the interior of the vehicle photographed by the photographing device. Since it is possible, the driving end determination unit 27 uses the determination of the driving end or getting off using the photographing apparatus instead of the above-described determination of driving end or getting off according to the state of each signal or in combination with the above. Anyway. In the image analysis of the above-mentioned video, for example, by taking and analyzing a passenger's getting on / off of the driver's seat, presence / absence of seating, driving operation, etc., the end of driving or getting off, etc. directly or indirectly Judgment can be made.

  Here, a series of movements from the end of driving to getting off are, for example, vehicle speed 0, shift P range, parking brake on, engine stop, ignition switch off, accessory switch off, door lock unlocking, door opening, door closing, door Since it is in the order of lock locking, etc. (however, the order may be changed or a part may be lost), the operation end determination unit 27 grasps any one or more of these movements. Thus, it is configured to determine the end of driving or getting off.

  Note that the operation end determination unit 27 can be provided in the portable device 7. In this case, the operation end determination unit 27 is configured to access the flag area provided in the storage device 12 of the in-vehicle device 6 by wireless communication.

(Other configurations)
The portable device 7 can also measure the distance D between the portable device 7 and the in-vehicle device 6 based on the reception strength (RSSI) of the wireless communication from the in-vehicle device 6. Then, the distance D based on the reception intensity (RSSI) can be used together with the distance D measured by the positioning units 21 to 23 using the satellite positioning unit. For example, the distance D based on the reception strength (RSSI) is used in a situation where positioning by the positioning units 21 to 23 cannot be performed.

  Therefore, you may make it provide the portable machine 7 with the RSSI distance measurement part 41 which measures the distance D based on reception intensity | strength (RSSI).

<Operation> The operation of this embodiment will be described below.
When the user carrying the portable device 7 operates the trigger switch 3 installed on the outer portion of the vehicle 1, the trigger signal 4 from the trigger switch 3 is input to the in-vehicle device 6 mounted on the vehicle 1. Wireless communication is performed between the device 6 and the portable device 7. And when permission is attained as a result of this radio | wireless communication, the vehicle equipment 6 operates the door lock mechanism 5, for example. As a result, the door lock can be unlocked. In addition, in addition to operating the door lock mechanism 5 or instead of operating the door lock mechanism 5, the in-vehicle device 6 may include other events (for example, lamps 15 a such as a turn signal lamp and a hazard lamp). It is also possible to generate a welcome lighting indicating a passenger's welcome by flashing the alarm device 15 or the like.

  On the contrary, when the user carrying the portable device 7 operates the trigger switch 3 installed on the outer portion of the vehicle 1 after the driving is finished and the user gets off, the trigger signal 4 from the trigger switch 3 is obtained. Is input to the vehicle-mounted device 6 mounted on the vehicle 1, and wireless communication is performed between the vehicle-mounted device 6 and the portable device 7. And when permission is attained as a result of this radio | wireless communication, the vehicle equipment 6 operates the door lock mechanism 5, for example. As a result, the door lock can be locked.

  Note that the door lock mechanism 5 may be operated after the trigger switch 3 is operated after the wireless communication between the in-vehicle device 6 and the portable device 7 is performed first and permission is given.

  Moreover, you may make it perform the automatic operation of the door lock mechanism 5 only by the radio | wireless communication between the vehicle equipment 6 and the portable device 7, without using the trigger switch 3. FIG.

  Alternatively, a lock operation button may be provided on the portable device 7 so that the automatic operation of the door lock mechanism 5 may be performed using the operation of the lock operation button as a trigger.

<Effect> According to this embodiment, the following effects can be obtained.
(Operation effect 1)
By adjusting the intermittent period C of the wireless communication of the portable device 7 according to the distance D between the vehicle 1 and the portable device 7, power consumption due to short-range wireless communication is prevented, and the battery of the portable device 7 It is possible to suppress a decrease in capacity and a battery exhaustion.

  Further, by adjusting the intermittent period C of the wireless communication of the portable device 7 according to the distance D between the vehicle 1 and the portable device 7, a decrease in responsiveness when operating the door lock mechanism 5 is prevented. can do.

  In particular, by shortening the intermittent period C when the distance D between the vehicle 1 and the portable device 7 is short, and by increasing the intermittent period C when the distance D between the vehicle 1 and the portable device 7 is long, The said effect can be exhibited effectively.

(Operation effect 2)
As shown in the sequence diagram of FIG. 6 and the flowchart (mainly refer to FIG. 8) of FIG. 7 (on-vehicle device 6 side) and FIG. The storage unit 35 stores the position of the vehicle 1 measured by the positioning units 21 to 23 (step S11).

  Then, the distance monitoring unit 36 determines whether the distance between the vehicle 1 and the portable device 7 is based on the position of the vehicle 1 stored in the vehicle position storage unit 35 and the position of the portable device 7 measured by the positioning unit 23 in step S12. The distance D is monitored (step S13).

  The intermittent cycle setting unit 37 changes the intermittent cycle C of short-range wireless communication performed on the in-vehicle device 6 according to the distance D between the vehicle 1 and the portable device 7 monitored by the distance monitoring unit 36. (Steps S14, 15).

  By setting it as such, the structure which can specifically adjust the intermittent period C of the short-distance wireless communication of the portable device 7 can be obtained.

(Operation effect 3)
At least at the end of driving (step S1), the position of the vehicle 1 is measured by the positioning units 21 and 22 installed in the vehicle 1 or the vehicle-mounted device 6 (step S2).

  The in-vehicle device 6 transmits the measured position of the vehicle 1 to the portable device 7. The portable device 7 stores the position of the vehicle 1 transmitted from the in-vehicle device 6 (step S11).

  By doing in this way, the position of the vehicle 1 is measured by the positioning units 21 and 22 on the vehicle 1 side, and the above-described function (adjustment of the intermittent period C of short-range wireless communication of the portable device 7) can be realized. It becomes like this.

(Operation effect 4)
Alternatively, at least at the end of driving (step S1), the position of the vehicle 1 is measured by the positioning unit 23 installed in the portable device 7 (step S11).

  Then, the portable device 7 stores the measured position of the vehicle 1.

  By doing in this way, even if it is a case where the positioning part 21 and 22 are not provided in the vehicle 1, the position of the vehicle 1 can be measured by the positioning part 23 which the portable machine 7 has, The position of the vehicle 1 is measured only by the positioning unit 23 of the portable device 7 and the above-described function (adjustment of the intermittent period C of short-range wireless communication of the portable device 7) can be realized.

(Operation effect 5)
At least when the position of the vehicle 1 is changed, the portable device 7 (the portable device 7 used for driving) measures the position of the vehicle 1 after the change by the positioning unit 23 installed in the portable device 7. And transmitted to the other portable device 7 registered in the in-vehicle device 6.

  Then, the other portable device 7 rewrites the stored position of the vehicle 1 to the changed (latest) position of the vehicle 1 transmitted by the portable device 7 (the portable device 7 used for driving). .

  By doing in this way, even when the position of the vehicle 1 is changed, it is possible to perform an effective position change measure for the other registered portable devices 7. In addition, since the portable devices 7 notify each other of changes in the position of the vehicle 1, the burden on the in-vehicle device 6 can be reduced.

(Operation effect 6)
Alternatively, when at least the position of the vehicle 1 is changed, the in-vehicle device 6 is registered in the in-vehicle device 6 that the position of the vehicle 1 after the change or the position of the vehicle 1 has been changed. 7 to send.

  Then, the other portable device 7 rewrites the stored position of the vehicle 1 to the changed position of the vehicle 1 transmitted by the in-vehicle device 6 (case 1). Alternatively, the other portable device 7 receives the changed position of the vehicle 1 stored in the in-vehicle device 6 and rewrites the changed position of the vehicle 1 (case 2).

  Alternatively, the other portable device 7 measures the position of the changed vehicle 1 (at a later date) with the positioning unit 23 installed in the portable device 7 and rewrites the measured position of the vehicle 1 (case 3). .

  By doing in this way, even when the position of the vehicle 1 is changed, it is possible to perform an effective position change measure for the other registered portable devices 7.

(Operation effect 7)
As shown in FIG. 5, the portable device 7 stops short-range wireless communication when the position of the portable device 7 measured by the positioning unit 23 goes outside the communication area X of short-range wireless communication with the vehicle 1. When short-distance wireless communication with the vehicle 1 enters the communication area X, short-distance wireless communication is started. Thereby, outside the communication area X, the battery consumption of the portable device 7 can be reduced by the amount of short-range wireless communication being stopped. In addition, since the position of the portable device 7 can be measured by the positioning unit 23 of the portable device 7 itself, short-range wireless communication can be reliably started (restarted) when entering the communication area X. Therefore, it is possible to prevent the short-range wireless communication between the vehicle 1 and the portable device 7 from being affected.

(Operation effect 8)
Since the short-range wireless communication device is the Bluetooth communication device (BlueTooth (registered trademark)) installed in the portable device 7, the Bluetooth communication device (BlueTooth (registered trademark)) that has been rapidly spread in recent years is used as it is. Thus, the door lock device can be operated.

  Further, since the positioning units 21 to 23 are at least a GPS device mounted on the portable device 7, the position of the portable device 7 can be accurately measured using the GPS device. Since this GPS device is currently most popular in Japan, it is most convenient to use for the positioning units 21 to 23. The position of the vehicle 1 can be measured by the GPS device mounted on the vehicle 1 or the GPS device mounted on the portable device 7 as described above. Further, the position of the vehicle 1 can be displayed on the display device 7a of the portable device 7 as needed.

(Operation effect 9)
The portable device 7 adjusts the intermittent period (positioning cycle) of the positioning of the portable device 7 by the positioning unit 23 according to the distance D between the vehicle 1 and the portable device 7. Consumption can be further suppressed.

(Operation effect 10)
If the short-range wireless communication device and the positioning units 21 to 23 are provided, the door lock device can be operated by various portable devices 7 such as a multi-function mobile terminal, a multi-function mobile phone, and a dedicated mobile terminal. Can be. Thereby, for example, a smartphone or the like can be used as the portable device 7 of the vehicle keyless system 2, and the use of the smartphone can be expanded and the number of belongings when going out can be reduced.

(Operation effect 11)
By using at least one of a vehicle speed 0 signal, a shift P range signal, a parking brake signal, an engine stop signal, an ignition off signal, an accessory switch off signal, a door lock signal, and a door open / close signal, The stoppage of operation can be detected with certainty. In addition, it is possible to easily detect opening / closing of a door, getting off, etc.

  Although the embodiments of the present invention have been described in detail with reference to the drawings, the embodiments are only examples of the present invention, and the present invention is not limited to the configurations of the embodiments. Needless to say, design changes and the like within a range not departing from the gist of the invention are included in the present invention. Further, for example, when each embodiment includes a plurality of configurations, it is a matter of course that possible combinations of these configurations are included even if not specifically described. Further, when a plurality of embodiments and modifications are shown, it is needless to say that possible combinations of configurations extending over these are included even if not specifically described. Further, the configuration depicted in the drawings is of course included even if not particularly described. Further, when there is a term of “etc.”, it is used in the sense that the equivalent is included. In addition, when there are terms such as “almost”, “about”, “degree”, etc., they are used in the sense that they include those in the range and accuracy recognized by common sense.

DESCRIPTION OF SYMBOLS 1 Vehicle 2 Keyless system for vehicles 5 Door lock mechanism 6 Car-mounted machine 7 Portable machine 21 Positioning part 22 Positioning part 23 Positioning part 24 Intermittent period adjustment part 35 Vehicle position memory | storage part 36 Distance monitoring part 37 Intermittent period setting part C Intermittent period D Distance X Communication area

Claims (12)

An in-vehicle device mounted on a vehicle and operating at least a door lock mechanism of the vehicle;
In a vehicle keyless system comprising a portable device that is portable by a user and capable of wireless communication with the in-vehicle device,
The portable device is configured to perform short-range wireless communication with the in-vehicle device having an intermittent period,
At least one of the vehicle, the in-vehicle device, and the portable device includes at least one positioning unit capable of measuring the position of the vehicle and the position of the portable device using a satellite positioning system. And
The portable device monitors the distance between the vehicle and the portable device based on the position of the vehicle and the position of the portable device measured by the positioning unit;
According to the distance, provided with an intermittent period adjustment unit that adjusts the intermittent period of short-range wireless communication performed on the vehicle-mounted device ,
The intermittent cycle adjustment unit is capable of changing the intermittent cycle in three or more stages or steplessly . The intermittent period adjustment unit is
A vehicle position storage unit that stores the position of the vehicle measured by the positioning unit;
A distance monitoring unit that monitors the distance between the vehicle and the portable device based on the position of the vehicle stored in the vehicle position storage unit and the position of the portable device measured by the positioning unit;
The intermittent period setting part which changes the intermittent period of the short-distance wireless communication performed with respect to the said vehicle equipment according to the said distance monitored by this distance monitoring part is provided. The keyless system for vehicles as described. At least when driving
The position of the vehicle is measured by a positioning unit installed in the vehicle or the in-vehicle device,
The in-vehicle device transmits the measured position of the vehicle to the portable device,
The vehicle-less keyless system according to claim 1, wherein the portable device stores the transmitted position of the vehicle. At least when driving
Measure the position of the vehicle with a positioning unit installed in the portable device,
The keyless system for a vehicle according to claim 1, wherein the portable device stores the measured position of the vehicle. At least when the position of the vehicle changes
The portable device is configured such that the position of the vehicle after the change is measured by a positioning unit installed in the portable device, and can be transmitted to another portable device registered in the in-vehicle device,
The other portable device is configured to rewrite the stored vehicle position with the changed vehicle position transmitted by the portable device. 2. A keyless system for a vehicle according to item 1. At least when the position of the vehicle changes
The in-vehicle device has changed the position of the vehicle or the position of the vehicle,
It is configured to be able to transmit to other portable devices registered in the in-vehicle device,
Other mobile devices store the stored vehicle position,
Rewrite the changed vehicle position transmitted by the in-vehicle device,
Receiving the changed vehicle position stored in the vehicle-mounted device and rewriting the changed vehicle position, or
The position of the vehicle after the change is measured again by a positioning unit installed in the portable device, and rewritten to the position of the measured vehicle according to any one of claims 1 to 4. The keyless system for vehicles as described. The portable device is
The position of the portable device measured by the positioning unit is
Stopping the short-range wireless communication when going out of the communication area of the short-range wireless communication with the vehicle,
The vehicle keyless system according to any one of claims 1 to 6, wherein the short-range wireless communication is started when entering the communication area of the short-range wireless communication with the vehicle. The short-range wireless communication device is a Bluetooth communication device (BlueTooth (registered trademark)) mounted on a portable device,
The keyless system for a vehicle according to any one of claims 1 to 7, wherein the positioning unit is at least a GPS device mounted on the portable device.   9. The portable device according to claim 8, wherein an intermittent cycle of positioning of the position of the portable device by the positioning unit is adjusted according to a distance between the vehicle and the portable device. Keyless system for vehicles.   10. The mobile phone according to claim 1, wherein the mobile device is one of a multi-function mobile terminal, a multi-function mobile phone, and a dedicated mobile terminal provided with the short-range wireless communication device and the positioning unit. The keyless system for vehicles according to claim 1. The in-vehicle device indicates the end of operation,
It is configured to detect by at least one of a vehicle speed 0 signal, a shift P range signal, a parking brake signal, an engine stop signal, an ignition off signal, an accessory switch off signal, a door lock signal, and a door open / close signal. The vehicle keyless system according to any one of claims 1 to 10. An in-vehicle device mounted on a vehicle and operating at least a door lock mechanism of the vehicle;
In a vehicle keyless system comprising a portable device that is portable by a user and capable of wireless communication with the in-vehicle device,
At least the portable device includes at least one positioning unit capable of measuring the position of the vehicle using a satellite positioning system;
At least when the position of the vehicle changes
The portable device is configured such that the position of the vehicle after the change is measured by a positioning unit installed in the portable device, and can be transmitted to another portable device registered in the in-vehicle device,
The other portable device is configured to rewrite the stored vehicle position to the changed vehicle position transmitted by the portable device.