JP5600500B2 - Vehicle wireless communication system - Google Patents

Description

  The present invention relates to a vehicle wireless communication system that executes various types of vehicle control through wireless communication between an in-vehicle device and a portable device provided in the vehicle.

  As one of such vehicle wireless communication systems, a so-called wireless remote control system is known in which a vehicle door can be locked or unlocked by operating a switch provided in a portable device. In this system, when a switch of the portable device is operated, the portable device transmits a command signal including a wireless identification code (ID code) to the vehicle. When this command signal is received by the vehicle, the vehicle collates the wireless identification code included in the signal with the wireless identification code registered in itself, and through this collation, the portable device Authentication is performed. The vehicle door is locked / unlocked on condition that the authentication of the portable device is established.

  On the other hand, in the vehicle wireless communication system described above, in addition to such a wireless remote control system, the user who has the portable device can automatically unlock the vehicle door simply by approaching the vehicle and touching the door knob. A so-called smart entry system is also known. In this smart entry system, when the portable device approaches the vehicle, wireless communication is performed between the portable device and the vehicle. Here, in the vehicle, the smart identification code registered in the portable device and the smart identification code registered in the portable device are collated with each other through mutual communication with the portable device. Is done. Then, when it is detected that the user touches the door knob of the vehicle in a state where the authentication of the portable device is established, the unlocking of the vehicle door is executed.

  By the way, in each of these systems, a portable device is usually assigned to each vehicle, and a wireless identification code or a smart identification that is different for each vehicle (for each portable device) is used for the paired vehicle and portable device. The code is registered. For this reason, since the user who possesses a plurality of vehicles needs to possess a plurality of portable devices corresponding to each vehicle, and needs to use them according to the vehicle to be used, the user's convenience deteriorates. There is a concern.

  Therefore, conventionally, as can be seen in, for example, Patent Document 1, a smart identification code registered in a predetermined vehicle can be registered in another vehicle other than the predetermined vehicle. As a result, if the user possesses a portable device corresponding to a predetermined vehicle, the user can unlock not only the door of the predetermined vehicle but also the door of another vehicle, thereby improving the convenience of the system. It becomes like this.

  In addition, in a situation where mutual communication can be performed between a plurality of vehicles and portable devices, the authentication of the portable device will be established in all vehicles in which the same smart identification code is registered. The vehicle door will not be unlocked unless the user touches the door handle. Therefore, it is possible to avoid a situation in which doors of other vehicles other than the vehicle used by the user are unnecessarily unlocked. In addition, when the user operates a switch of the portable device, only the door of a predetermined vehicle that is paired with the portable device is unlocked, so that the doors of other vehicles are not unlocked unnecessarily. . Therefore, the security of the vehicle can be ensured accurately.

JP 2005-307480 A

  In this way, when the user operates the switch of the portable device, only the door of the predetermined vehicle that is paired with the portable device is unlocked, thereby surely ensuring the security of the vehicle. Will be able to. However, in this case, since the user cannot unlock the doors of other vehicles except for the predetermined vehicle by operating the switch of the portable device, the user's convenience may be deteriorated.

  The present invention has been made in view of such circumstances, and an object thereof is to provide a vehicle radio communication system capable of improving convenience while ensuring security.

In order to solve the above problems, a first aspect of the present invention, the portable device is wirelessly transmits a command signal on the basis of the operation of the switch provided on the portable device, the command signal is set to the vehicles vignetting together with the on condition that it is received by the onboard machine has vehicle device executes vehicle control, through a radio by mutual communication with the pre-Symbol wheel mounting machine and the portable device to authenticate the portable device, the authentication the vehicle wireless communication system in which the vehicle transfer machine in the condition to perform vehicle control that holds, the vehicle device transmits a radio signal when executing the vehicle control through mutual communication with the portable device are those comprising a selecting means for selecting a vehicle likely that the user uses from the plurality of vehicles based on the radio signal transmitted from each provided is vehicle-mounted device into a plurality of vehicles, it said selecting means Through It is summarized as to permit execution of the vehicle control based on the reception of the viewing before SL command signal in-vehicle device provided in a vehicle that is selected Te.

  According to the system, if a command signal is transmitted from the portable device based on the operation of the switch, and this command signal is received by the vehicle-mounted devices of a plurality of vehicles, only the predetermined vehicle-mounted device selected by the selection means Vehicle control is executed. Therefore, since vehicle control is not executed unnecessarily by other on-vehicle devices other than the predetermined on-vehicle device, the security of the vehicle can be ensured. Also, based on the execution status of vehicle control by mutual communication between the in-vehicle device and the portable device, that is, based on the execution status of vehicle control by the smart entry system, a vehicle that is likely to be used by the user is selected. For example, when the user operates the switch of the portable device, the user can operate the vehicle according to his / her intention, so that the convenience of the user can be improved.

According to a second aspect of the present invention, the selection means is the portable device, and the portable device is selected from a plurality of vehicles based on the wireless signal transmitted from the vehicle-mounted device of each vehicle. The selection is performed by selecting a vehicle that is highly likely to be used and transmitting a command signal that can establish the authentication only in an in-vehicle device corresponding to the selected vehicle when transmitting the command signal. The gist of the invention is to permit execution of the vehicle control based on reception of the command signal only in an in-vehicle device corresponding to the vehicle.
According to a third aspect of the present invention, the selecting means is an in-vehicle device of each vehicle, and the in-vehicle device of each vehicle includes a communication means for performing wireless mutual communication with other in-vehicle devices. ,
While selecting the vehicle that is likely to be used by the user from among the plurality of vehicles based on the transmission state of the wireless signal of itself and the transmission state of the wireless signal by other onboard devices other than itself, The gist is to allow the execution of the vehicle control based on the reception of the command signal only when the vehicle is a vehicle-mounted device that is likely to be used by a user.
According to these systems, it is possible to easily realize a configuration in which the vehicle control based on the reception of the command signal is executed only by the in-vehicle device of the vehicle selected through the selection unit.
According to a fourth aspect of the present invention, in the wireless communication system for a vehicle according to any one of the first to third aspects, the selecting means selects the vehicle corresponding to the vehicle-mounted device that lastly transmitted the wireless signal. The gist is to select a vehicle that is highly likely to be used by the user .

In general, a user who owns a plurality of vehicles often uses each vehicle separately, for example, a vehicle that is used on a daily basis or a vehicle that is used on a holiday. For this reason, it can be estimated that the vehicle used last time is likely to be used next time. In this regard, as in the above system, as a vehicle that is highly likely to be used by the user, a vehicle corresponding to the vehicle-mounted device that lastly transmitted a radio signal , that is, a vehicle in which vehicle control based on the smart entry system is finally executed is performed. If selected, it becomes possible to easily select a vehicle that is likely to be used by the user.

According to a fifth aspect of the present invention, in the vehicle wireless communication system according to the first aspect, the selection unit executes the vehicle control based on the wireless signal transmitted from an onboard device of each vehicle. The gist is to measure the frequency for each vehicle and to select the vehicle having the highest execution frequency as the vehicle that is most likely to be used by the user based on the execution frequency for each vehicle .

As in the system, measuring the frequency at which the vehicle control is executed based on the radio signal transmitted from the vehicle-mounted device of each vehicle , that is, the frequency at which the vehicle control based on the smart entry system is executed for each vehicle; By doing so, it becomes possible to accurately grasp the usage status of each vehicle by the user. If the vehicle with the highest execution frequency is selected as a vehicle that is highly likely to be used by the user, a vehicle that is highly likely to be used by the user can be accurately selected. As a result, when the user operates the switch of the portable device, the user can operate the vehicle more in line with his / her intention, and as a result, the user's convenience can be further improved.

  The vehicle wireless communication system according to the present invention can improve convenience while ensuring security.

The block diagram which shows the system configuration | structure about 1st Embodiment of the radio | wireless communications system of the vehicle concerning this invention. The figure which shows typically the information each memorize | stored in the memory of a portable machine and the memory of a vehicle-mounted apparatus about the radio | wireless communications system of the vehicle of the said 1st Embodiment. The figure which shows typically the information each memorize | stored in the memory of a portable machine and the memory of a vehicle-mounted apparatus about the radio | wireless communications system of the vehicle of the said 1st Embodiment. The sequence chart which shows a mode that the authentication of a portable machine is performed about the radio | wireless communications system of the vehicle of the 1st Embodiment, and a mode that a vehicle door is unlocked based on the authentication. The flowchart which shows the procedure of the door unlock process at the time of smart communication by the radio | wireless communications system of the vehicle of the said 1st Embodiment. The flowchart which shows the procedure of the activation flag setting process by the radio | wireless communications system of the vehicle of the said 1st Embodiment. The flowchart which shows the procedure of the command signal transmission process by the radio | wireless communications system of the vehicle of the said 1st Embodiment. The figure which shows typically the information each memorize | stored in the memory of a portable apparatus and the memory of a vehicle-mounted apparatus about 2nd Embodiment of the radio | wireless communications system of the vehicle concerning this invention. The flowchart which shows the procedure of the door unlock process at the time of smart communication by the radio | wireless communications system of the vehicle of the said 2nd Embodiment. The flowchart which shows the procedure of the frequency measurement process by the radio | wireless communications system of the vehicle of the said 2nd Embodiment. The flowchart which shows the procedure of the command signal transmission process by the radio | wireless communications system of the vehicle of the said 2nd Embodiment. The block diagram which shows the system configuration | structure about 3rd Embodiment of the radio | wireless communications system of the vehicle concerning this invention. The figure which shows typically the information each memorize | stored in the memory of a portable machine and the memory of a vehicle equipment about the radio | wireless communications system of the vehicle of the said 3rd Embodiment. The sequence chart which shows a mode that the authentication of a portable machine is performed about the radio | wireless communications system of the vehicle of the 3rd Embodiment, and a mode that a vehicle door is unlocked based on the authentication. The flowchart which shows the procedure of the door unlock process at the time of smart communication by the radio | wireless communications system of the vehicle of the said 3rd Embodiment. The flowchart which shows the procedure of the door lock / unlock process at the time of the wireless communication by the radio | wireless communications system of the vehicle of the said 3rd Embodiment. The figure which shows typically the information each memorize | stored in the memory of a portable apparatus and the memory of a vehicle-mounted apparatus about 4th Embodiment of the radio | wireless communications system of the vehicle concerning this invention. The flowchart which shows the procedure of the door unlock process at the time of smart communication by the radio | wireless communications system of the vehicle of the 4th embodiment. The flowchart which shows the procedure of the door lock / unlock process at the time of the wireless communication by the radio | wireless communications system of the vehicle of the said 4th Embodiment.

<First Embodiment>
A vehicle wireless communication system according to a first embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a block diagram showing a system configuration of a radio communication system according to the present invention. First, an outline of the radio communication system will be described with reference to FIG. In the present embodiment, a case where the user has two vehicles A and B is illustrated.

  As shown in FIG. 1, the wireless communication system is mainly composed of a portable device 10 possessed by a user and on-vehicle devices 20 and 30 mounted on vehicles A and B, respectively. The wireless communication system operates as the above-described wireless remote control system and smart entry system by performing various types of wireless communication control between the portable device 10 and the in-vehicle devices 20 and 30. That is, in this wireless communication system, when the user operates the lock switch 13 or the unlock switch 14 provided in the portable device 10, the lock command signal or the unlock command is transmitted from the portable device 10 to the in-vehicle devices 20 and 30. A signal is transmitted, and the vehicle door is locked / unlocked through such one-way communication (wireless communication). In this wireless communication system, if a user who has the portable device 10 enters the communication areas Sa and Sb around the vehicles A and B, a request signal and a response are transmitted between the portable device 10 and the in-vehicle devices 20 and 30. A signal is transmitted and received, and the vehicle door is unlocked through such bidirectional communication (smart communication).

  Here, the portable device 10 is provided with a receiving device 12 for receiving the request signal together with a transmitting device 11 for transmitting the lock command signal, the unlock command signal, and the response signal. In addition, the portable device 10 is provided with a portable device control device 15 that includes a nonvolatile memory 15a as a storage unit and the like and is configured mainly with a microcomputer. The portable device control device 15 executes a process of transmitting a response signal from the transmission device 11 when a request signal is received via the reception device 12. In addition, the portable device control device 15 takes in the output signals of the lock switch 13 and the unlock switch 14 and receives a lock command signal or an unlock command signal from the transmission device 11 based on the output signals of the switches 13 and 14. It is also a part that executes the transmission process.

  On the other hand, the in-vehicle devices 20 and 30 are provided with transmission devices 21 and 31 for transmitting request signals to the communication areas Sa and Sb, respectively, and receive the lock command signal, the unlock command signal, and the response signal. Receiving devices 22 and 32 are provided respectively. The in-vehicle devices 20 and 30 include door lock mechanisms 24 and 34 for locking / unlocking the vehicle door, and a touch sensor 25 that detects whether or not the user's hand has come into contact with the door handles of the vehicles A and B. , 35 are provided. The output signals of the touch sensors 25 and 35 are taken into vehicle control devices 23 and 33 having nonvolatile memories 23a and 33a as storage means and having a microcomputer as a center. The vehicle control devices 23, 33 are configured to unlock the vehicle door based on the output signals of the touch sensors 25, 35 and the response signals received via the receiving devices 22, 32. 34 is controlled. In addition, the vehicle control devices 23 and 33 are configured to lock / unlock the vehicle door based on the lock command signal and the unlock command signal received via the receiving devices 22 and 32, respectively. It is also a part that controls the drive of.

Next, information stored in the memory 15a of the portable device 10 and the memories 23a and 33a of the in-vehicle devices 20 and 30 will be described with reference to FIGS.
As shown in FIG. 2, the memory 15a of the portable device 10 is divided into first and second storage areas. Among these, the first storage area includes the following (a1): Information shown in (a3) is stored in advance.

(A1) A first smart identification code IDs1 used when authenticating the portable device 10 through the smart communication.
(A2) A first wireless identification code IDw1 used when authenticating the portable device 10 through the wireless communication.

(A3) A first activation flag Fa1.
In addition, information shown in the following (b1) to (b3) is stored in advance in the second storage area.

(B1) A second smart identification code IDs2 different from the first smart identification code IDs1.
(B2) A second wireless identification code IDw2 different from the first wireless identification code IDw1.

(B3) Second activation flag Fa2.
On the other hand, a first vehicle identification code IDc1 for identifying the vehicle A is stored in the memory 23a of the in-vehicle device 20 in advance. In addition, a second vehicle identification code IDc2 for identifying the vehicle B is stored in the memory 33a of the in-vehicle device 30 in advance.

  And in this embodiment, when registering the portable apparatus 10 to the vehicle equipment 20, the following operations are performed. That is, the first smart identification code IDs1 and the first wireless identification code IDw1 are written in the memory 23a of the in-vehicle device 20, and the first vehicle identification code IDc1 is stored in the memory 15a of the portable device 10. 1 storage area. Further, when registering the portable device 10 in the in-vehicle device 30, the following work is performed. That is, the second smart identification code IDs2 and the second wireless identification code IDw2 are written in the memory 23a of the in-vehicle device 20, and the second vehicle identification code IDc2 is stored in the memory 15a of the portable device 10. 2 is written into the storage area.

  Through such a series of registration operations, information as shown in FIG. 3 is stored in the memory 15a of the portable device 10 and the memories 23a and 33a of the in-vehicle devices 20 and 30, respectively. Of the information stored in the memory 15a of the portable device 10, the information stored in the first storage area is associated with the information stored in the second storage area. Is associated.

  Next, with reference to FIG. 4, a state in which the portable device 10 is authenticated through smart communication and wireless communication and a state in which the vehicle door is unlocked based on the authentication will be described.

  For example, when a request signal is transmitted to the communication area Sa, it is assumed that the user enters the communication area Sa while holding the portable device 10. At this time, the request signal is received by the portable device 10, and the received request signal is transmitted to the portable device control device 15. When the request signal is transmitted in this way, the portable device control device 15 reads the first and second smart identification codes IDs1 and IDs2 stored in the memory 15a, and then the first and second smart devices. A response signal including the identification codes IDs1 and IDs2 is generated and transmitted from the transmission device 11. When the response signal is transmitted in this manner, the in-vehicle device 20 receives the response signal, and the received response signal is transmitted to the vehicle control device 23. Thus, after acquiring the first and second smart identification codes IDs1 and IDs2 included in the response signal, the vehicle control device 23 stores both the acquired smart identification codes IDs1 and IDs2 in the memory 23a. It is determined whether or not the authentication of the portable device 10 is established by collating with the smart identification code that is present (step S1). Here, since the first smart identification code IDs1 is stored in the memory 23a, if the vehicle control device 23 determines that the smart identification codes match each other through this collation, the portable device 10 Is determined (step S1: YES), and unlocking of the vehicle door is permitted (step S2). If the user touches the door handle of the vehicle A with the unlocking of the vehicle door permitted in this way, the vehicle control device 23 detects that through the touch sensor 25 (step S3) The vehicle door is unlocked by the door lock mechanism 24 (step S4). Thereafter, the vehicle control device 23 reads the first vehicle identification code IDc1 stored in the memory 23a and generates an activation signal including the first vehicle identification code IDc1 from the transmission device 21. Send. When the activation signal is transmitted in this manner, the portable device 10 receives the activation signal and transmits the received activation signal to the portable device control device 15. As a result, the portable device control device 15 acquires the first vehicle identification code IDc1 included in the activation signal, and at the same time, the activation flag associated with the first vehicle identification code IDc1, that is, the first vehicle identification code IDc1. The activation flag Fa1 is turned on (step S5). Further, the portable device control device 15 turns off the activation flag that is not associated with the first vehicle identification code IDc1, that is, the second activation flag Fa2 (step S6). Through such a series of processes, the activation flag corresponding to the vehicle for which the vehicle control based on smart communication was last performed is set to the on state, and the activation flags corresponding to the other vehicles are in the off state. Set to

  As described above, in the present embodiment, when vehicle control based on smart communication is performed, the vehicle-mounted devices 20 and 30 transmit the activation signal to the portable device 10, so that the vehicle control based on smart communication is finally performed. The activation flag corresponding to the performed vehicle is set to the on state, and the activation flags corresponding to the other vehicles are set to the off state.

  Then, after the user gets off the vehicle A, locks the door, and then tries to get on the vehicle A again, this time, the user operates the unlock switch 14 of the portable device 10. At this time, when the portable device control device 15 detects an operation on the unlock switch 14 (step S10), the on-state activation of the first and second activation flags Fa1 and Fa2 stored in the memory 15a is detected. The wireless identification code associated with the activation flag, that is, the first wireless identification code IDw1 is read. Then, an unlock command signal including the first wireless identification code IDw <b> 1 is generated and transmitted from the transmitter 11. Here, if this unlock command signal is received by the in-vehicle devices 20 and 30, the vehicle control devices 23 and 33 of the in-vehicle devices 20 and 30 operate as follows. First, after acquiring the first wireless identification code IDw1 included in the unlock command signal, the vehicle control device 23 acquires the first wireless identification code IDw1 and the wireless use code stored in the memory 23a. The portable device 10 is authenticated by collating with the identification code (step S11). Here, since the first wireless identification code IDw1 is stored in the memory 23a, the vehicle control device 23 determines that the wireless identification codes match each other through this collation. 10 is established (step S11: YES), and the vehicle door is unlocked by the door lock mechanism 24 (step S12). On the other hand, the vehicle control device 33 also obtains the first wireless identification code IDw1 included in the unlock command signal, and then stores the obtained first wireless identification code IDw1 and the memory 33a. The portable device 10 is authenticated by collating with the wireless identification code that is present (step S13). Here, since the second wireless identification code IDw2 is stored in the memory 33a, the vehicle control device 33 determines that the wireless identification codes do not coincide with each other through this collation. It is determined that the authentication has not been established (step S13: NO), and the series of processing is terminated without executing unlocking of the vehicle door.

  Thus, in this embodiment, vehicle control based on smart communication is performed by including a vehicle identification code corresponding to the vehicle for which vehicle control based on smart communication was last performed in the lock command signal or unlock command signal. The vehicle control based on the wireless communication is executed only on the last vehicle.

  5 to 7 show the vehicle door unlock process during smart communication executed through the vehicle control devices 23 and 33 and the activity executed through the portable device control device 15 in the vehicle wireless communication system of the present embodiment. The procedure of the process flag setting process and the command signal transmission process is respectively shown. Next, the specific procedure of each process will be summarized with reference to FIGS.

  First, with reference to FIG. 5, the door unlock process at the time of smart communication performed through the vehicle control devices 23 and 33 will be described. This process is repeatedly executed with a predetermined calculation cycle when unlocking of the vehicle door based on smart communication is permitted.

  As shown in FIG. 5, in this process, it is first determined whether or not the user's hand has contacted the door handles of the vehicles A and B based on the output signals of the touch sensors 25 and 35 (step). S20). When it is determined that the user's hand has come into contact (step S20: YES), the door lock mechanism 24, 34 unlocks the vehicle door (step S21). In addition, following the processing of step S31, after the first vehicle identification code IDc1 or the second vehicle identification code IDc2 stored in the memories 23a and 33a is read, the activity including the read vehicle identification code is included. A signal is generated and transmitted to the portable device 10 (step S22).

  On the other hand, when it is determined that the user's hand is not in contact (step S20: NO), the vehicle control devices 23 and 33 are not subjected to a series of unlocking of the vehicle door or transmission of an activation signal. The process ends.

Next, the activation flag setting process executed through the portable device control device 15 will be described with reference to FIG. This process is executed when the activation signal is received.
As shown in FIG. 6, in this process, the vehicle identification code included in the activation signal is first extracted (step S30), and the activation flag associated with the extracted vehicle identification code is extracted. Is set to an on state (step S31). In the subsequent step S32, the activation flag that is not associated with the extracted vehicle identification code is set to the off state, and the portable device control device 15 ends this series of processing.

  Subsequently, a command signal transmission process executed through the portable device control device 15 will be described with reference to FIG. This process is executed when an operation on the lock switch 13 or the unlock switch 14 is detected.

  As shown in FIG. 7, in this process, first, an activation flag that is in an ON state is selected from the first and second activation flags Fa1 and Fa2 stored in the memory 15a. (Step S40). Then, the wireless identification code associated with the selected activation flag is read (step S41), and a lock command signal or an unlock command signal including the read wireless identification code is generated (step S42). ). Further, following the process of step S42, after the generated command signal is transmitted to the in-vehicle devices 20 and 30 (step S43), the portable device control device 15 ends this series of processing.

  According to such a configuration as a vehicle wireless communication system, even when the unlock command signal transmitted from the portable device 10 is received by both the in-vehicle devices 20 and 30, vehicle control based on smart communication is executed last. The vehicle door is unlocked only in the case of the vehicle. In other words, the vehicle control based on the wireless communication is executed only in the vehicle for which the vehicle control based on the smart communication is performed last. Therefore, since the vehicle door is not unlocked in both of the vehicles A and B, the security of the vehicle can be ensured accurately.

  By the way, in general, a user who owns a plurality of vehicles often uses each vehicle separately, for example, a vehicle that is used on a daily basis or a vehicle that is used on a holiday. . For this reason, it can be estimated that the vehicle used last time is likely to be used next time. Therefore, as described above, if a vehicle in which vehicle control based on smart communication is performed last is selected as a vehicle that can be controlled based on wireless communication, a vehicle that is likely to be used by a user. Can be selected. Therefore, when the user operates the lock switch 13 or the unlock switch 14 of the portable device 10, the door is locked / unlocked by the vehicle in accordance with the user's intention. Can be improved.

As described above, according to the wireless communication system for vehicles according to the present embodiment, the following effects can be obtained.
(1) The vehicle control based on the wireless communication is performed only on the vehicle for which the vehicle control based on the smart communication is performed last. As a result, the vehicle door is not unlocked in both the vehicles A and B, so that the security of the vehicle can be ensured. Moreover, since the vehicle according to a user's intention can be operated, a user's convenience can be improved.

  (2) The vehicle in which the vehicle control based on smart communication was last performed is selected as a vehicle that is likely to be used by the user. This makes it possible to easily select a vehicle that is likely to be used by the user.

  (3) One of the first and second vehicle identification codes IDc1 and IDc2 is included in the lock command signal or the unlock command signal. As a result, the vehicle door is locked / unlocked only in the in-vehicle device in which the same vehicle identification code as the vehicle identification code included in each command signal is stored. A configuration in which control is executed only on one of the vehicles A and B can be easily realized.

<Second Embodiment>
Next, a second embodiment of the vehicle radio communication system according to the present invention will be described with reference to FIGS. Note that the basic configuration of the vehicle wireless communication system according to the second embodiment is similar to that of the first embodiment shown in FIG. The difference from the vehicle wireless communication system will be mainly described.

  In the present embodiment, the frequency of door unlock execution based on smart communication is measured for each of the vehicles A and B, and vehicle control based on wireless communication is performed only for the vehicle having the highest frequency. The execution frequency for each of the vehicles A and B is measured by the portable device control device 15. That is, the portable device control device 15 functions as a measurement unit that measures the execution frequency for each of the vehicles A and B.

  FIG. 8 schematically shows information stored in the memory 15a of the portable device 10 and the memories 23a and 33a of the in-vehicle devices 20 and 30 in the vehicle wireless communication system of the present embodiment.

  As shown in FIG. 8, in the memory 15a of the portable device, the first frequency counter Ca1 is stored in the first storage area instead of the first activation flag Fa1, and the second In the storage area, a second frequency counter Ca2 is stored instead of the second activation flag Fa2.

  Next, referring to FIGS. 9 to 11, in the vehicle wireless communication system of the present embodiment, the unlocking process of the vehicle door and the portable device control device at the time of smart communication executed through the vehicle control devices 23 and 33. The frequency measurement process and the command signal transmission process executed through 15 will be described. In addition, in each process shown in FIG.9 and FIG.11, the process same as the process illustrated in previous FIG.5 and FIG.7 is attached | subjected and shown, and the overlapping description about these processes is shown. Omit.

  First, with reference to FIG. 9, the unlocking process of the vehicle door at the time of smart communication performed through the vehicle control devices 23 and 33 will be described. This process is also repeatedly executed with a predetermined calculation cycle when unlocking of the vehicle door based on smart communication is permitted.

  As shown in FIG. 9, in this process, after the vehicle door is unlocked by the door lock mechanisms 24 and 34 (step S21), the following process is executed as the process of the subsequent step S23. That is, after the first vehicle identification code IDc1 or the second vehicle identification code IDc2 stored in the memories 23a and 33a is read, a count-up signal including the vehicle identification code is generated, and this is generated. Processing to send to is executed.

Next, frequency measurement processing executed through the portable device control device 15 will be described with reference to FIG. This process is executed when the count-up signal is received.
As shown in FIG. 10, in this process, after the vehicle identification code included in the count-up signal is extracted (step S50), the value of the frequency counter associated with the extracted vehicle identification code is obtained. Incremented (step S51). In the process of step S51, specifically, when the first vehicle identification code IDc1 is included in the count-up signal, the value of the first frequency counter Ca1 is incremented, while the count-up signal When the second vehicle identification code IDc2 is included, the value of the second frequency counter Ca2 is incremented. Note that the values of the first and second frequency counters Ca1 and Ca2 may be counted, for example, in units of one week, in units of months, in units of years, or may be counted for each day of the week.

  Next, a command signal transmission process executed through the portable device control device 15 will be described with reference to FIG. This process is also executed when an operation on the lock switch 13 or the unlock switch 14 is detected.

  As shown in FIG. 11, in this process, first, of the first and second frequency counters Ca1 and Ca2 stored in the memory 15a, the one having the largest value is selected (step S44). Then, after the wireless identification code associated with the selected frequency counter is read (step S45), a command signal including the read wireless identification code is generated (step S42). 20 and 30 (step S43).

  According to such a configuration as the vehicle wireless communication system, when the door of the vehicle A is unlocked based on the smart communication, the value of the first frequency counter Ca1 is incremented, and the vehicle based on the smart communication. When the door of B is unlocked, the value of the second frequency counter Ca2 is incremented. Thereby, since the execution frequency of the vehicle control based on smart communication can be measured for each of the vehicles A and B, the usage status of each vehicle can be accurately grasped. When selecting a vehicle that performs vehicle control based on wireless communication, the user selects the vehicle corresponding to the frequency counter having the largest value among the first and second frequency counters Ca1 and Ca2. This makes it possible to accurately select vehicles that are likely to be used. Therefore, when the user operates the lock switch 13 or the unlock switch 14 of the portable device 10, the user can operate the vehicle more in line with his / her intention, so that the convenience of the user can be improved. become.

  As described above, according to the present embodiment, in addition to the effect (3) of the previous first embodiment, the following effects can be obtained as an alternative to the effects (1) and (2). It becomes like this.

  (1 ') The vehicle control execution frequency based on the smart communication is measured for each of the vehicles A and B, and the vehicle control based on the wireless communication is executed only for the vehicle with the highest execution frequency. As a result, the vehicle door is not unlocked in both the vehicles A and B, so that the security of the vehicle can be ensured. Further, since the user can operate the vehicle more in line with his / her intention, the convenience of the user can be improved.

  (2 ') A vehicle having the highest execution frequency of vehicle control based on smart communication is selected as a vehicle that is likely to be used by the user. Thereby, since the use condition of each vehicle can be grasped more accurately, it becomes possible to accurately select a vehicle that is likely to be used by the user.

<Third Embodiment>
Next, a third embodiment of the vehicle wireless communication system according to the present invention will be described with reference to FIGS. The basic configuration of the vehicle wireless communication system according to the third embodiment is similar to that of the first embodiment shown in FIG. 1, and the diagram corresponding to FIG. The system configuration of the vehicle radio communication system is shown in FIG. In FIG. 12, the same elements as those shown in FIG. 1 are denoted by the same reference numerals, and redundant description is omitted. Hereinafter, differences between the two will be mainly described.

  In the first embodiment, the portable device control device 15 selects the vehicle for which the vehicle control based on the smart communication is performed last, in other words, the vehicle that is likely to be used by the user. did. That is, the portable device control device 15 functions as a selection unit that selects a vehicle that is likely to be used by the user. On the other hand, in the present embodiment, the vehicle control devices 23 and 33 perform selection of the vehicle for which the vehicle control based on the smart communication is finally performed. That is, the vehicle control devices 23 and 33 are made to function as the selection means.

  As shown in FIG. 12, in the vehicle wireless communication system according to the present embodiment, each vehicle-mounted device 20, 30 has an inter-vehicle communication device 26 as communication means for performing wireless communication with other vehicle-mounted devices. 36 are provided. In other words, the in-vehicle devices 20 and 30 can exchange various data via the inter-vehicle communication devices 26 and 36.

Next, as a diagram corresponding to FIG. 3, FIG. 13 shows information stored in the memory 15a of the portable device 10 and the memories 23a and 33a of the in-vehicle devices 20 and 30, respectively.
As shown in FIG. 13, in each of the memories 15a, 23a, and 33a, a common wireless identification code IDw is stored in place of the first and second wireless identification codes IDw1 and IDw2. In the first embodiment, the first and second activation flags Fa1 and Fa2 are stored in the memory 15a of the portable device 10, but in the present embodiment, the first and second activation flags Fa1 and Fa2 are stored. The activation flags Fa1 and Fa2 are stored separately in the memories 23a and 33a of the in-vehicle devices 20 and 30, respectively.

  Next, referring to FIG. 14, based on the information stored in the memories 15 a, 23 a, and 33 a, the authentication of the portable device 10 is performed through smart communication and wireless communication, and the vehicle door is based on the authentication. A state where unlocking is performed will be described. In addition, in each process shown in FIG. 14, the same code | symbol is attached | subjected and shown to the process same as the process illustrated in previous FIG. 4, and the overlapping description about these processes is omitted.

  As shown in FIG. 14, in this embodiment, after smart communication is performed between the portable device 10 and the vehicle-mounted device 20, the vehicle door 20 is unlocked by the vehicle-mounted device 20 (step S4). ), The vehicle control device 23 operates as follows. That is, after setting the first activation flag Fa1 stored in the memory 23a to the on state (step S60), a prohibition command signal for prohibiting vehicle control based on wireless communication is transmitted to the in-vehicle device 30. By transmitting the prohibition command signal in this manner, the in-vehicle device 30 receives this and transmits the received prohibition command signal to the vehicle control device 33. Accordingly, the vehicle control device 33 sets the second activation flag Fa2 stored in the memory 33a to an off state based on the reception of the prohibition command signal (step S61).

  Then, through such a series of processes, the activation flag is set to the on state in the in-vehicle device in which the vehicle control based on the smart communication was last performed, while the activation flag is set to the off state in the other in-vehicle devices. Will be.

  Then, after the user gets off the vehicle A, locks the door, and then tries to get on the vehicle A again, this time, the user operates the unlock switch 14 of the portable device 10. At this time, when the portable device control device 15 detects an operation on the unlock switch 14 (step S70), the portable device control device 15 reads the common wireless identification code IDw stored in the memory 15a and the read common wireless identification code IDw. An unlock command signal including this is generated and transmitted from the transmitter 11. Here, if this unlock command signal is received by the in-vehicle devices 20 and 30, the vehicle control devices 23 and 33 of the in-vehicle devices 20 and 30 operate as follows. First, the vehicle control device 23 determines whether or not the first activation flag Fa1 stored in the memory 23a is in an on state (step S71), and the first activation flag Fa1 is in an on state. If it is determined (step S71: YES), the processing of steps S11 and S12 is executed to unlock the vehicle door. On the other hand, the vehicle control device 33 determines whether or not the second activation flag Fa2 stored in the memory 33a is on (step S72), and the second activation flag Fa2 is off. When the determination is made (step S72: NO), the series of processing ends without performing authentication of the portable device 10 or unlocking the vehicle door.

  As described above, in the present embodiment, each of the vehicle control devices 23 and 33 determines whether the vehicle control based on the smart communication is performed last in either of the vehicles A and B. In the vehicle in which the vehicle control based on the smart communication is finally performed, the vehicle control based on the wireless communication is performed, while in the other vehicles, the vehicle control based on the wireless communication is not performed.

  Next, referring to FIG. 15 and FIG. 16, in the vehicle wireless communication system of the present embodiment, the vehicle door unlocking process at the time of smart communication executed through the vehicle control devices 23, 33, and at the time of wireless communication A vehicle door lock / unlock process will be described.

  First, with reference to FIG. 15, the unlocking process of the vehicle door at the time of smart communication performed through the vehicle control apparatuses 23 and 33 will be described. In addition, in each process shown in FIG. 15, the same code | symbol is attached | subjected to the process same as the process illustrated in previous FIG. 5, and the overlapping description about these processes is omitted. This process is also repeatedly executed with a predetermined calculation cycle when unlocking of the vehicle door based on smart communication is permitted.

  As shown in FIG. 15, in this process, after the vehicle door is unlocked by the door lock mechanisms 24 and 34 (step S21), the process stored in the built-in memory is performed as the process of step S24. The activation flag is set to the on state. Specifically, the vehicle control device 23 performs a process for setting the first activation flag Fa1 to an on state, and the vehicle control device 33 performs a process for setting the second activation flag Fa2 to an on state. Each done. Further, following the process of step S24, the prohibition command signal is transmitted to other in-vehicle devices via the inter-vehicle communication devices 26 and 36 (step S25), and the vehicle control devices 23 and 33 perform this series of processing. Exit. In the process of step S25, when the wireless communication cannot be performed between the vehicle-to-vehicle communication devices 26 and 36, for example, because the vehicle A and the vehicle B are separated from each other, the wireless communication is performed. After waiting until it becomes possible, processing for transmitting the prohibition command signal is executed.

On the other hand, when receiving the prohibition command signal, the vehicle control devices 23 and 33 execute a process of setting the activation flag stored in the memory 23a or the memory 33a to an off state.
Next, a vehicle door lock / unlock process during wireless communication performed through the vehicle control devices 23 and 33 will be described with reference to FIG. This process is executed when a lock command signal or an unlock command signal is received via the receiving devices 22 and 32.

  As shown in FIG. 16, in this process, first, it is determined whether or not the activation flag stored in the memories 23a and 33a is in the on state (step S80), and the activation flag is in the on state. Is determined (step S80: YES), it is determined whether authentication of the portable device 10 is established (step S81). In the process of step S81, as described above, the wireless identification code included in each command signal is collated with the wireless identification code stored in the memories 23a and 33a, so that the identification codes of each other are obtained. Are matched, it is determined that authentication of the portable device 10 has been established. Here, when it is determined that the authentication of the portable device 10 has been established (step S81: YES), the door lock mechanism 24, 34 locks / unlocks the vehicle door (step S82), The vehicle control devices 23 and 33 end this series of processing.

  On the other hand, when it is determined that the activation flag stored in the built-in memories 23a and 33a is in an off state (step S80: NO), or when it is determined that authentication of the portable device 10 is not established. (Step S81: NO), the vehicle control devices 23 and 33 end the series of processes without locking / unlocking the vehicle door.

  Even with such a configuration as a wireless communication system for a vehicle, vehicle control based on wireless communication is executed only in the vehicle for which vehicle control based on smart communication was last performed.

As described above, according to the present embodiment, the following effects can be obtained in addition to the effects (1) and (2) according to the first embodiment.
(4) In the in-vehicle devices 20 and 30, when the unlocking of the vehicle door based on the smart communication is executed, the activation flag stored in its own memory 23a and 33a is set to the on state. Also, the activation flag stored in the memory of the other in-vehicle device is set to the OFF state by transmitting a prohibition command signal to other in-vehicle devices other than itself. And in vehicle equipment 20,30, when the activation flag memorized by own memory is in an ON state, while the vehicle control based on wireless communication is performed, the activation flag memorized by own memory Vehicle control based on wireless communication is prohibited when in the off state. Accordingly, it is possible to easily realize a configuration in which vehicle control based on wireless communication is executed only on one of the vehicles A and B.

<Fourth Embodiment>
Next, a fourth embodiment of the vehicle wireless communication system according to the present invention will be described with reference to FIGS. The basic configuration of the vehicle wireless communication system according to the fourth embodiment is similar to that of the third embodiment shown in FIG. 12, and the following third embodiment will be described below. The difference from the vehicle wireless communication system will be mainly described.

  In this embodiment, the vehicle control execution frequency based on the smart communication is measured for each of the vehicles A and B, and the vehicle control based on the wireless communication is executed only for the vehicle having the highest frequency. In the present embodiment, the vehicle control devices 23 and 33 perform measurement of the execution frequency and selection of the vehicle having the highest execution frequency. That is, the vehicle control devices 23 and 33 function as a selection unit that selects a vehicle that is likely to be used by the user, and also function as a measurement unit that measures the execution frequency of each of the vehicles A and B.

  FIG. 17 is a diagram corresponding to FIG. 13 described above, and in the vehicle wireless communication system of the present embodiment, information stored in the memory 15a of the portable device 10 and the memories 23a and 33a of the in-vehicle devices 20 and 30, respectively. Is schematically shown.

  As shown in FIG. 17, the memories 23a and 33a of the in-vehicle devices 20 and 30 have first and second frequency counters Ca1 and Ca2 instead of the first and second activation flags Fa1 and Fa2. Are stored.

  Next, referring to FIG. 18 and FIG. 19, in the vehicle wireless communication system of the present embodiment, the vehicle door unlocking process at the time of smart communication executed through the vehicle control devices 23 and 33, and the wireless communication at the time of wireless communication A vehicle door lock / unlock process will be described. In addition, in each process shown in FIG.18 and FIG.19, the same code | symbol is attached | subjected to the process same as the process illustrated in previous FIG.15 and FIG.16, and the overlapping description about these processes is omitted. .

  First, the unlocking process of the vehicle door at the time of smart communication executed through the vehicle control devices 23 and 33 will be described with reference to FIG. This process is also repeatedly executed with a predetermined calculation cycle when unlocking of the vehicle door based on smart communication is permitted.

  As shown in FIG. 18, in this process, after the vehicle door is unlocked by the door lock mechanisms 24 and 34 (step S21), the process is stored in the memories 23a and 33a as the process of step S26. The value of the first frequency counter Ca1 is incremented. Further, following the process of step S26, information on the value of the first frequency counter Ca1 is transmitted to another in-vehicle device (step S27).

  In addition, when the vehicle control apparatuses 23 and 33 receive information on the value of the first frequency counter Ca1 transmitted from other vehicle-mounted devices, the values are stored in the memories 23a and 33a as the second frequency counter Ca2. .

  Next, a vehicle door lock / unlock process during wireless communication executed through the vehicle control devices 23 and 33 will be described with reference to FIG. This process is executed when a lock command signal or an unlock command signal is received via the receiving devices 22 and 32.

  As shown in FIG. 19, in this process, first, it is determined whether or not the value of the first frequency counter Ca1 stored in the memories 23a and 33a is greater than or equal to the value of the second frequency counter Ca2. (Step S83). If it is determined that the value of the first frequency counter Ca1 is greater than or equal to the value of the second frequency counter Ca2 (step S83: YES), the processes of steps S81 and 82 are executed. That is, it is determined whether or not the authentication of the portable device 10 has been established (step S81), and if it is determined that the authentication of the portable device 10 has been established (step S81: YES), the door lock mechanism 24 described above. 34, the vehicle door is locked / unlocked (step S82).

  On the other hand, when it is determined that the value of the first frequency counter Ca1 is less than the value of the second frequency counter Ca2 (step S83: NO), it is determined that authentication of the portable device 10 is not established. In the case (step S81: NO), the vehicle control devices 23 and 33 end this series of processes.

  According to such a configuration as a vehicle wireless communication system, when vehicle control based on smart communication is executed in the vehicles A and B, the values of the first and second frequency counters Ca1 and Ca2 of the in-vehicle devices 20 and 30 are obtained. Is incremented. For example, when the frequency of execution of vehicle control based on smart communication is higher in the vehicle A than in the vehicle B, in the in-vehicle device 20, the value of the first frequency counter Ca1 is maximized, whereas the in-vehicle device At 30, the value of the second frequency counter Ca2 is maximized. Therefore, vehicle control based on wireless communication is performed only on the vehicle A. As described above, in selecting a vehicle capable of vehicle control based on wireless communication, if a vehicle having the highest frequency of vehicle control based on smart communication is selected, a vehicle that is likely to be used by a user. Can be selected accurately. Accordingly, when the user operates the lock switch 13 or the unlock switch 14 of the portable device 10, the user can operate the vehicle more in line with his / her intention, thereby improving the convenience for the user. Will be able to.

  In the present embodiment, for example, when the vehicle A and the vehicle B are largely separated from each other, the information on the value of the first frequency counter Ca1 transmitted from one on-vehicle device is received by the other on-vehicle device. There is a risk that it will not be possible. In this regard, in this embodiment, even if such a situation occurs, if the information on the value of the first frequency counter Ca1 transmitted from one on-vehicle device next time can be received by the other on-vehicle device. In other in-vehicle devices, the value of the second frequency counter Ca2 can be appropriately updated. For this reason, since malfunction of the vehicle equipment 20 and 30 can be avoided, the reliability as a system can be ensured appropriately.

As described above, according to the present embodiment, in addition to the effects (1 ′) and (2 ′) according to the second embodiment, the following effects can be obtained.
(5) When the vehicle doors 20 and 30 perform unlocking of the vehicle door based on smart communication, information on the value of the first frequency counter Ca1 is transmitted to other vehicle-mounted devices. Moreover, in each vehicle-mounted device 20 and 30, while measuring the frequency which self unlocked the vehicle door based on smart communication, based on the value information of the frequency counter transmitted from other vehicle-mounted devices, The frequency at which the vehicle-mounted device unlocked the vehicle door based on smart communication was measured. And based on own execution frequency and the execution frequency of another vehicle equipment, vehicle control based on wireless communication was performed only with the vehicle corresponding to the vehicle equipment with the highest execution frequency. Accordingly, it is possible to easily realize a configuration in which vehicle control based on wireless communication is executed only on one of the vehicles A and B.

<Other embodiments>
In addition, each said embodiment can also be implemented with the following forms which changed this suitably.
In the first and third embodiments, vehicle control based on wireless communication is executed only on the vehicle on which door unlocking based on smart communication was last performed. Instead of this, for example, in a vehicle wireless communication system that performs the verification of the portable device 10 in the vehicle interior and permits the engine to start on the condition that the vehicle interior verification is established, the engine based on the smart communication is used. Vehicle control based on wireless communication may be executed only on the vehicle that was last started.

  In the second and fourth embodiments, vehicle control based on wireless communication is executed only on a vehicle having the highest frequency of door unlocking based on smart communication. Instead of this, for example, in a vehicle wireless communication system that performs the verification of the portable device 10 in the vehicle interior and permits the engine to start on the condition that the vehicle interior verification is established, the engine based on the smart communication is used. Vehicle control based on wireless communication may be executed only on a vehicle having the highest start execution frequency.

  In the third and fourth embodiments, the wireless communication between the in-vehicle devices 20 and 30 is performed via the inter-vehicle communication devices 26 and 36. Instead, for example, the wireless communication between them is performed. Communication may be performed via a communication network.

  In the fourth embodiment, when the vehicle control execution frequency based on smart communication is measured for each of the vehicles A and B, the measurement is performed by the vehicle control devices 23 and 33. Instead of this, for example, when the vehicle-mounted devices 20 and 30 execute vehicle control based on smart communication after providing a center capable of performing wireless communication with the vehicle-mounted devices 20 and 30 via the communication network. Notify the center to the effect. Then, the center measures and manages the execution frequency of the vehicle control based on the smart communication for each of the vehicles A and B based on the notification from the in-vehicle devices 20 and 30. On the other hand, the vehicle control devices 23 and 33 acquire information on the execution frequency for each of the vehicles A and B by communicating with the center via the communication network. According to such a configuration, even in a situation where wireless communication cannot be performed between the in-vehicle device 20 and the in-vehicle device 30, the vehicle control devices 23 and 33 grasp the execution frequency of the vehicles A and B. Will be able to.

  In each of the above embodiments, when the lock switch 13 or the unlock switch 14 provided in the portable device 10 is operated, the in-vehicle devices 20 and 30 are connected to the vehicle door according to the present invention. The present invention is applied to a vehicle radio communication system that performs lock / unlock. Instead of this, for example, when a switch provided on a portable device is operated, the in-vehicle devices 20 and 30 are applied to a vehicle wireless communication system that opens and closes a power slide door of a vehicle or opens and closes a power back door. May be. Further, the present invention can also be applied to a vehicle wireless communication system in which the in-vehicle devices 20 and 30 start the engine when a switch provided in the portable device is operated.

  In each of the above embodiments, the vehicle wireless communication system according to the present invention is applied to two vehicles, vehicles A and B, but it can be applied to three or more vehicles instead. .

  A, B ... vehicle, Sa, Sb ... communication area, Ca1 ... first frequency counter, Ca2 ... second frequency counter, Fa1 ... first activation flag, Fa2 ... second activation flag, IDw ... common Wireless identification code, IDc1 ... first vehicle identification code, IDc2 ... second vehicle identification code, IDs1 ... first smart identification code, IDs2 ... second smart identification code, IDw1 ... first wireless ID code, IDw2 ... second wireless identification code, 10 ... portable device, 11 ... transmitting device, 12 ... receiving device, 13 ... lock switch, 14 ... unlock switch, 15 ... portable device control device, 15a ... memory, 20, 30 ... vehicle-mounted device, 21, 31 ... transmitting device, 22, 32 ... receiving device, 23, 33 ... vehicle control device, 23a, 33a ... memory, 24, 34 ... DO Lock mechanism, 25, 35 ... touch sensor, 26, 36 ... vehicle-to-vehicle communication device.

Claims (5)

The command signal is the same portable device based on operation of a switch provided on the portable device wirelessly transmits, the in-vehicle device is a vehicle in the condition that it is received by the vehicle-mounted device that the command signal is kicked set to vehicles Perform control,
Authenticates the portable unit through radio by mutual communication between the front Symbol wheel mounting machine and the portable device, in a vehicle radio communication system in which the vehicle transfer machine on condition that the authentication is established to perform the vehicle control ,
The in-vehicle device transmits a radio signal when the vehicle control is executed through mutual communication with the portable device,
Comprising a selecting means for selecting a vehicle likely that the user uses from the plurality of vehicles based on the radio signal transmitted from the vehicle-mounted device which is provided in each of a plurality of vehicles,
Vehicle radio communication system and permits the execution of the vehicle control based on the reception of the viewing before SL command signal in-vehicle device provided in a vehicle to be selected through the selection means.   The selection means is the portable device;
  The portable device is
  Based on the radio signal transmitted from the vehicle-mounted device of each vehicle, the vehicle that is likely to be used by the user is selected from the plurality of vehicles,
  At the time of transmission of the command signal, by transmitting a command signal that can establish the authentication only with the in-vehicle device corresponding to the selected vehicle, the command is transmitted only with the in-vehicle device corresponding to the selected vehicle. Allows execution of the vehicle control based on reception of a signal
  The wireless communication system for a vehicle according to claim 1.   The selection means is an in-vehicle device of each vehicle,
  The in-vehicle device of each vehicle is
  With communication means for wirelessly communicating with other in-vehicle devices,
  While selecting the vehicle that is likely to be used by the user from among the plurality of vehicles based on the transmission status of the radio signal of itself and the transmission status of the radio signal by other in-vehicle devices other than itself,
  The execution of the vehicle control based on reception of the command signal is permitted only when the device is an in-vehicle device corresponding to a vehicle that is likely to be used by the user.
  The wireless communication system for a vehicle according to claim 1.   The selection means selects a vehicle corresponding to the vehicle-mounted device that has transmitted the wireless signal last as a vehicle that is likely to be used by the user.
  The radio | wireless communications system of the vehicle as described in any one of Claims 1-3.   The selecting means is
  Based on the radio signal transmitted from the vehicle-mounted device of each vehicle, the frequency with which the vehicle control is executed is measured for each vehicle,
  Based on the execution frequency for each vehicle, the vehicle with the highest execution frequency is selected as the vehicle that is most likely to be used by the user.
  The radio | wireless communications system of the vehicle as described in any one of Claims 1-3.

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