JP2011003140A - In-vehicle unit detection device, and etc in-vehicle unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique capable of preventing a vehicle having a plurality of mounted ETC in-vehicle units from colliding with a toll gate.SOLUTION: In a communication system, a tester transmits an ETC calling signal for calling each ETC in-vehicle unit mounted on the vehicle in tester transmission processing (S130), and decides whether there are a plurality of ETC in-vehicle units mounted on the vehicle by detecting a response to the ETC calling signal (S160). According to such the communication system, it is possible to detect whether the plurality of the ETC in-vehicle units are mounted on the vehicle. Thus, by reference to a detection result, if only one of the plurality of the ETC in-vehicle units is set to be usable, it is possible to prevent the vehicle having the plurality of the mounted ETC in-vehicle units from colliding with the toll gate.

Description

  The present invention relates to a vehicle-mounted device detection device that detects an ETC vehicle-mounted device compatible with an automatic fee collection system, and an ETC vehicle-mounted device.

  An ETC checker for confirming that an ETC (Electronic Toll Collection) (registered trademark) vehicle-mounted device is attached in a good state is known. (For example, refer to Patent Document 1).

Japanese Patent No. 367291

  By the way, in recent years, an apparatus with an ETC function (for example, a DSRC vehicle-mounted device) having a function of acquiring information such as traffic jam information as a main function and an ETC function as an additional function has been developed. Therefore, the user may install the above-mentioned ETC function-equipped device in the same vehicle without noticing that the ETC function is installed in a state where the ETC-only device having only the ETC function is installed in the vehicle. is there.

  As described above, when a plurality of ETC on-board units having an ETC function are mounted on a vehicle, the device on the ETC gate side communicates with only one of the ETC on-board units. When the device communicates with an ETC on-vehicle device that the user does not intend to use (for example, an ETC on-vehicle device in which a card for payment is not inserted), an error is detected on the ETC gate side and the gate does not open. Therefore, the vehicle may collide with the gate at this time.

  Here, the ETC checker does not assume that a plurality of ETC on-board units are mounted on the vehicle, so even if the mounting state of the ETC on-board unit can be confirmed, the vehicle can collide with the gate. Sex cannot be denied.

  Then, in view of such a problem, it is an object of the present invention to provide a technique capable of preventing a vehicle equipped with a plurality of ETC on-vehicle devices from colliding with a toll gate.

  The on-vehicle device detection device according to claim 1, wherein the on-vehicle device detection means transmits an ETC call signal for calling an ETC on-vehicle device mounted on the vehicle, and is configured to achieve the above object. By detecting the response, it is determined whether or not there are a plurality of ETC on-board units mounted on the vehicle.

  Here, as a case where it is determined that a plurality of ETC on-board units are arranged in the vehicle, for example, when a response for each on-board unit with respect to the ETC call signal is received separately, or when a response to the ETC call signal is mixed Etc. In addition, the ETC onboard equipment may be devised so that the response from the ETC onboard equipment does not interfere. Specifically, the ETC on-vehicle device may be configured to return a response to the ETC call signal after waiting for a random time set for each on-vehicle device after receiving the ETC call signal.

  According to such a vehicle-mounted device detection device, it is possible to detect that a plurality of ETC vehicle-mounted devices are arranged in the vehicle. Therefore, by referring to this detection result and setting to a state where only one of the plurality of ETC on-board units can be used, it is possible to prevent the occurrence of an error on the ETC gate side. Accordingly, it is possible to prevent a vehicle equipped with a plurality of ETC on-vehicle devices from colliding with the toll gate.

  By the way, in the in-vehicle device detection apparatus according to claim 1, when a plurality of ETC on-vehicle devices are detected by the on-vehicle device detection unit as described in claim 2, other than one ETC on-vehicle device is excluded. You may provide the response stop means to set so that an ETC onboard equipment may not respond at least to an ETC call signal.

  According to such a vehicle-mounted device detection apparatus, even when a plurality of ETC vehicle-mounted devices are arranged in the vehicle, one ETC vehicle-mounted device that responds to the ETC call signal without performing complicated work by the worker. Can only be set.

  Further, in the in-vehicle device detection apparatus according to claim 2, as described in claim 3, the on-vehicle device state acquisition means for acquiring the on-vehicle device state information representing the state of each ETC on-vehicle device, and the acquired on-vehicle device Use on-vehicle equipment determining means for determining an ETC on-vehicle equipment to be used for automatic fee collection based on the state information may be provided. In this case, when the plurality of ETC on-board units are detected by the on-board unit detection unit, the ETC on-board unit excluding the ETC on-board unit determined by the use on-board unit determination unit does not respond at least to the ETC call signal. It should be set as follows.

  According to such an in-vehicle device detection device, since the in-vehicle device state information is acquired from each ETC on-vehicle device, for example, one on-vehicle device corresponding to the state of the on-vehicle device such as an ETC on-vehicle device having the best in-vehicle device state. Can be set in the on-board ETC device used for automatic fee collection.

  Further, in the OBE detection device according to claim 3, the OBE state acquisition means may acquire information such as the presence / absence of a card used for fee settlement as the OBE state information. As described, the in-vehicle device state acquisition means may acquire the type of function of each ETC on-vehicle device or the number of this type from each ETC on-vehicle device as the on-vehicle device state information. In this case, the on-board device determining means uses the ETC on-board device having the largest number of functions based on the acquired function type or number of types of each ETC on-board device at the time of automatic fee collection. What is necessary is just to determine as an ETC onboard equipment to perform.

According to such a vehicle-mounted device detection apparatus, the most advanced ETC vehicle-mounted device can be determined as an ETC vehicle-mounted device that is used for automatic fee collection.
Next, the ETC vehicle-mounted device according to claim 5 includes an operation changing means for changing the operation setting of the ETC vehicle-mounted device so as not to respond at least to the ETC call signal when receiving a preset command from the outside. ing.

  According to such an ETC vehicle-mounted device, it is possible to set whether or not to respond to an ETC call signal in accordance with an external command. Therefore, when a plurality of ETC on-board units are arranged in the vehicle, this setting operation can be easily performed when only one ETC on-board unit responding to the ETC call signal is set.

1 is a block diagram showing a schematic configuration of a communication system to which the present invention is applied. It is a ladder chart which shows exchange of data between an ETC roadside machine and an ETC onboard equipment. It is a block diagram which shows schematic structure of a tester. It is a flowchart which shows a tester transmission process. It is a flowchart which shows a tester reception process. It is a flowchart which shows an ETC onboard equipment process. It is a ladder chart showing exchange of data between a tester and a plurality of ETC onboard equipment.

Embodiments according to the present invention will be described below with reference to the drawings.
[Configuration of this embodiment]
FIG. 1 is a block diagram showing a schematic configuration of a communication system 1 to which the present invention is applied.

  In the communication system 1, a vehicle side device including an ETC (Electronic Toll Collection) vehicle-mounted device 30, a navigation device 60, an ignition switch 80, etc. exchanges data with roadside devices such as the ETC roadside device 10 and the DSRC roadside device 20. It is configured to

  That is, the ETC on-vehicle device 30 has not only a function of automatic fee collection but also a function as a DSRC (dedicated narrow area communication) on-vehicle device. In addition, the ETC on-vehicle device 30 is configured to be able to communicate with a tester 50 (on-vehicle device detection device) used when setting up the ETC on-vehicle device 30. In the present embodiment, information transmitted from the road machines 10 and 20 to the vehicle is also referred to as service information.

  The ETC roadside device 10 is disposed at a toll gate in a toll road, a parking lot, and the like, and includes an ETC control unit 11 and a toll gate antenna 12. The ETC control unit 11 is configured as a well-known microcomputer including a CPU, a ROM, a RAM, and the like, and transmits a radio wave from a toll gate antenna 12 to a predetermined area in the toll gate and receives the radio wave (ETC). When a response is received from the vehicle-mounted device 30 or the like), communication is performed in which the communication partner is specified as a single vehicle, and data is exchanged such that the communication partner is specified and a fee is collected.

  The ETC control unit 11 is connected to a server (not shown) via a communication line, and causes the server to store information such as a fee collection history and its time in a database in the server.

  The DSRC road machine 20 includes a DSRC control unit 21 and a DSRC antenna 22. The DSRC control unit 21 is configured as a well-known microcomputer including a CPU, ROM, RAM, and the like. Data such as traffic information sent from a data center (not shown) connected in advance via a communication line is used. The loaded radio wave is repeatedly transmitted to a predetermined area including the road. Here, when the DSRC road unit 20 repeatedly transmits a radio wave carrying data such as traffic information, the communication partner is set to an unspecified number of vehicles (the communication partner is specified as one vehicle). do not do).

  The DSRC road machine 20 also performs communication specifying a communication partner as one vehicle. In this case, when receiving a response from the vehicle (such as the ETC on-board unit 30) that has received the radio wave, the vehicle information ( When information on travel of the vehicle such as travel history, vehicle speed, and acceleration is requested and desired information is obtained from the vehicle, the information is transmitted to a data center, a server (not shown) or the like, and recorded in the transmission destination.

  The ETC vehicle-mounted device 30 receives service information from the roadside devices 10 and 20, performs processing corresponding to the service information (for example, fee settlement processing at a toll gate), and includes the navigation device 60 and the like in the service information. It has a function of transferring what is used in the external device to the external device. In this case, for example, service information including at least one of characters, voice data, and information regarding graphics is transferred from the ETC in-vehicle device 30 to the navigation device 60, and the navigation device 60 generates an image based on the service information. Then, a process of displaying and displaying a sound and outputting it to the speaker 37 is performed.

  Specifically, the ETC on-vehicle device 30 includes an on-vehicle device control unit 31, a radio unit 32, an on-vehicle device antenna 33, a communication unit 34, a storage unit 35, a display unit 36, a speaker 37, and an input operation unit 38. And an IC card control unit 39 and an IC card connector 40.

The onboard equipment control unit 31 is configured as a known microcomputer including a CPU, a ROM, a RAM, and the like, and controls the entire ETC onboard equipment 30.
The wireless unit 32 realizes communication between the ETC vehicle-mounted device 30 and the roadside devices 10 and 20 by transmitting and receiving radio waves via the vehicle-mounted device antenna 33. That is, the radio unit 32 modulates and transmits a carrier wave having a predetermined frequency in accordance with data received from the in-vehicle device control unit 31 to be transmitted to the road units 10 and 20, and transmits radio waves via the on-vehicle device antenna 33. Upon reception, the received radio wave is demodulated and the obtained data is sent to the vehicle-mounted device control unit 31.

  The communication unit 34 is configured to be able to communicate with a device such as the navigation device 60 via the in-vehicle LAN 5 in which communication is performed using a predetermined protocol such as CAN. In particular, when the ETC vehicle-mounted device 30 transmits data (service information) to the in-vehicle LAN 5, the data transmitted by the vehicle-mounted device control unit 31 to the buffer (not shown) of the communication unit 34 is recorded, and the communication unit 34 Transmits the data recorded in this buffer to the in-vehicle LAN 5.

  The storage unit 35 is configured as a well-known writable memory, and the vehicle-mounted device control unit 31 performs writing to and reading from the storage unit 35. The display unit 36 is configured as a known display, and displays an image corresponding to the image signal from the vehicle-mounted device control unit 31.

  The input operation unit 38 is configured as an interface for receiving an operation by a user of the system, such as a switch and a keyboard. The operation input through the input operation unit 38 is detected by the vehicle-mounted device control unit 31.

  The IC card control unit 39 reads / writes the IC card 90 set in the IC card connector 40. Specifically, the IC card control unit 39 transmits a command for reading and writing predetermined data to the processing unit 91 of the IC card 90 in response to a command from the vehicle-mounted device control unit 31, and the processing unit that receives this command 91 reads and writes data stored in the storage unit 92 of the IC card 90.

  By such processing, reading / writing of information for specifying the interchange of the used toll road and the parking lot is performed on the IC card 90. Also, from the IC card 90, information for specifying the owner (user) of the IC card 90 and information such as the expiration date of the card are read out.

  The vehicle-mounted device control unit 31 is also connected to an ignition switch 80 in the vehicle, and is configured to detect the state (ON / OFF) of the ignition switch 80. Further, the state of the ignition switch 80 is configured to be detected by the navigation device 60. Further, when receiving a command to transmit probe information (travel history, vehicle speed, acceleration, and other information) from the navigation device 60, the vehicle-mounted device control unit 31 receives the probe information from the navigation device 60 and transmits the probe information on the road. Is transmitted to the machines 10 and 20.

  Here, processing when the ETC roadside device 10 and the ETC on-board unit 30 settle a fee will be described with reference to FIG. FIG. 2 is a ladder chart showing exchange of data between the ETC roadside device 10 and the ETC on-board unit 30.

  The ETC roadside device 10 periodically transmits an FMC signal which is a calling signal for calling the ETC roadside device 10, and when the ETC on-vehicle device 30 detects the FMC signal, information identifying itself (for example, information on the on-vehicle device number) is transmitted. An ACTC signal that is a response signal including the response signal is returned to the ETC road vehicle 10. At this time, the ETC on-vehicle device 30 selects one frame among a number of frames by a random number, and returns an ACTC signal in the selected frame.

  That is, since the ETC on-board unit 30 waits for a random time after receiving the FMC signal, and then transmits the ACTC signal, the ETC roadside device 10 interferes with the ACTC signals from the plurality of ETC on-board units 30. Therefore, it is possible to facilitate reception.

  Subsequently, when receiving the ACTC signal from the ETC on-vehicle device 30, the ETC roadside device 10 transmits a BST signal including information on the function of the base station to the ETC on-vehicle device 30. Upon receiving this BST signal, the ETC on-vehicle device 30 transmits a VST signal including information on the functions of the on-vehicle device (for example, ETC, DSRC, etc.) to the ETC roadside device 10. By this processing, the ETC roadside device 10 can recognize the type of function and the number of functions of the ETC on-board unit 30.

  Then, after receiving the ACTC signal from the ETC on-vehicle device 30, the ETC roadside device 10 exchanges information on the IC card 90, information on the fee, etc., and settles the fee (Action1.req-Action4.res). Finally, the ETC roadside device 10 transmits a Release.req signal indicating that the communication is terminated when the payment of the fee is completed, and the communication between the ETC roadside device 10 and the ETC on-vehicle device 30 is completed.

Next, the tester 50 will be described with reference to FIG. FIG. 3 is a block diagram showing a schematic configuration of the tester 50.
The tester 50 includes a control unit 51, a wireless unit 52, a power supply unit 53, a recording unit 54, a display unit 55, a speaker 56, an operation unit 57, and an external interface (I / F) 58. Yes. The control unit 51 is configured as a well-known microcomputer including a CPU, a ROM, a RAM, and the like, and performs processing based on a program stored in the ROM (tester transmission processing and the like described later).

  The wireless unit 52 is configured as a well-known wireless communication module, performs a process of transmitting a predetermined signal based on a command from the control unit 51, and receives a signal such as a response from the outside and sends it to the control unit 51. Perform the process.

  The power supply unit 53 supplies power of a predetermined voltage supplied from a power supply 65 (for example, a rechargeable battery) of the tester 50 to each part of the tester while transforming. The recording unit 54 is configured as, for example, a hard disk drive or a flash memory, and records a processing result by a tester transmission process described later.

  The display unit 55 and the speaker 56 are configured as a well-known display and speaker, and are used when notifying the user of the operating state and processing result of the tester 50 based on the command of the control unit 51. The operation unit 57 is configured as, for example, a touch panel or a plurality of switches, and is used for a user to input a command when operating the tester 50 or ending the operation.

The external I / F 58 is used as an interface for connecting a communication line for externally transmitting processing results.
[Process of this embodiment]
A process for determining that the ETC vehicle-mounted device 30 can be satisfactorily attached to the vehicle using such a tester 50 will be described with reference to FIG. 4 is a flowchart showing tester transmission processing executed by the control unit 51 of the tester 50, and FIG. 5 is a flowchart showing tester reception processing executed by the control unit 51 of the tester 50.

  In the tester transmission process, first, it is determined whether or not the operation unit 57 is operated by the user and a process start instruction is input (S110). If no start instruction is input (S110: NO), the process of S110 is repeated.

  If a start instruction is input (S110: YES), the timer built in the control unit 51 is reset, a predetermined timeout time is set, and the timer is started (S120). Then, the FCM signal is repeatedly transmitted at a predetermined cycle until the timeout time is reached (S130, S140).

  When the time-out time is reached (S140: YES), each vehicle-mounted device identification information and vehicle-mounted device number information are acquired from the recording unit 54 (S150, S160). The on-vehicle device identification information and the on-vehicle device number information are stored in the recording unit 54 when a response (ACTC signal) to the FMC signal is received. This process will be described later.

Subsequently, the in-vehicle device function information is requested to each ETC on-vehicle device 30 specified by the in-vehicle device identification information (S170), and the in-vehicle device function information is acquired from the recording unit 54 (S180). In addition, the request | requirement of onboard equipment function information represents the above-mentioned BST signal, and onboard equipment function information is stored in the recording part 54 when the above-mentioned VST signal is received. Subsequently, based on onboard equipment number information, The number of detected ETC vehicle-mounted devices 30 is determined (S210). If the detected ETC on-board unit 30 is plural (S210: plural), the result of the plural units is notified (S220), and the process proceeds to S250 described later. Specifically, the display unit 55 displays “multiple units detected!” Or outputs a pattern sound indicating that a plurality of ETC on-vehicle devices 30 are detected via the speaker 56.

  If the detected ETC on-board unit 30 is one (S210: one), the result of one is notified (S230), and the process proceeds to S250 described later. Specifically, “one unit detected” is displayed on the display unit 55, or a pattern sound indicating that one ETC on-vehicle device 30 has been detected is output via the speaker 56.

  Furthermore, if the detected ETC on-board unit 30 is 0 (S210: 0), the result of 0 is notified (S240). Specifically, “not detected!” Is displayed on the display unit 55, or a pattern sound indicating that the ETC in-vehicle device 30 has not been detected is output via the speaker 56. When the process of S240 is performed, the tester transmission process is terminated.

  Subsequently, when the process of S220 or S230 is completed, a process of selecting the ETC on-board device 30 to be preferentially used is performed (S250). Here, when only one ETC vehicle-mounted device 30 is detected, this ETC vehicle-mounted device 30 is set as an ETC vehicle-mounted device 30 that is used preferentially.

  When a plurality of ETC on-vehicle devices 30 are detected, the on-vehicle device function information is referred to and only the ETC on-vehicle device having the largest number of functions is set as an ETC on-vehicle device to be used with priority. Moreover, ETC on-board equipment 30 other than ETC on-board equipment 30 used preferentially is set as a non-priority ETC on-board equipment.

  Then, a priority control command is transmitted (S260). In other words, a command to preferentially use the ETC on-board device 30 to be used preferentially is transmitted, and a command to non-priority is transmitted to the non-prioritized ETC on-vehicle device 30.

  At this time, the user may be notified of the ETC in-vehicle device 30 to be used preferentially. Specifically, information (for example, in-vehicle device identification information) that can identify the ETC on-vehicle device 30 that is used preferentially or the non-prioritized ETC on-vehicle device 30 may be displayed on the display unit 55.

When such a process ends, the tester transmission process ends.
Next, the tester reception process will be described with reference to FIG. The tester reception process is a process that is repeatedly performed after the FCM signal is transmitted. First, as shown in FIG. 5, it is determined whether or not there is a response from the ETC on-board unit 30 (S310). If there is no response from the ETC on-board unit 30, the process of S310 is repeated.

If there is a response from the ETC on-board unit 30 (S310: YES), the type of response is determined.
If the response type is an ACTC signal (S320: ACTC), the OBE identification information included in the ACTC signal is recorded in the recording unit 54 (S330), and since this OBE identification information starts the tester transmission process, If the identification information is received for the first time, the vehicle unit number information is incremented and stored in the recording unit 54 (S340). When this process ends, the tester reception process is repeated from the beginning.

  If the response type is a VST signal (S320: VST), the in-vehicle device function information included in the VST signal is stored in the recording unit 54 for each ETC on-vehicle device 30 (S350). When this process ends, the tester reception process is repeated from the beginning.

  Further, if the response type is a response to priority control (S320: priority control response), a process completion notification (for example, Release.req signal) indicating that the process is completed is transmitted (S360), and the tester reception process is performed. Repeat from the beginning. Note that if the response type is other (other than ACTC signal, VST signal, priority control response), processing corresponding to the response is performed (not shown).

  Next, processing on the ETC on-board unit 30 side performed in conjunction with processing by the tester 50 will be described with reference to FIG. FIG. 6 is a flowchart showing the ETC on-board unit processing executed by the on-board unit control unit 31 of the ETC on-board unit 30.

  The ETC on-board unit process is a process that is repeatedly performed when the power of the ETC on-board unit 30 is turned on. First, it is determined whether any signal is received (S510). If no signal is received (S510: NO), then the ETC on-board unit reception process is repeated from the beginning.

  If the FCM signal is received (S510: FCM), it is determined whether or not the ETC on-board unit 30 is set to the priority state (S520). Note that the priority state or the non-priority state is set in the processing of S550 and S560 described later. It is assumed that the priority state is set at the start of this process.

  If the priority state is set (S520: YES), a process of responding according to the received signal (response process) is performed (S530), and then the ETC on-board unit reception process is repeated from the beginning. If the priority state is not set (S520: NO), the ETC on-board unit reception process is immediately repeated from the beginning.

  If a priority control command is received in the processing of S510 (S510: Priority control command), it is determined whether or not the priority control command indicates that the ETC on-board unit 30 is set with priority (S540). Further, if it is a priority control command for priority setting (S540: YES), the priority state is written in the storage unit 35, and then the ETC on-board unit reception process is repeated from the beginning.

  If it is a command for non-priority setting (S540: NO), the fact that it is in a non-priority state is written in the storage unit 35, and the ETC on-board unit reception process is repeated from the beginning. If the received signal is a signal other than the FCM signal or the priority control command (for example, a signal related to DSRC communication) in the process of S510 (S510: other than that), the process of S530 is performed, and then the ETC vehicle is mounted. Repeat the receiving process from the beginning.

  Next, data exchange when the tester 50 performs the above-described tester transmission processing and tester reception processing will be described with reference to FIG. FIG. 7 is a ladder chart showing data exchange between the tester 50 and the plurality of ETC in-vehicle devices 30.

  First, the tester 50 repeatedly transmits an FCM signal to each ETC on-board unit 30 as with the ETC roadside device 10. Then, an ACTC signal is returned from the ETC on-board unit 30 in sequence. At this time, the tester 50 detects the ETC vehicle-mounted device 30 every time an ACTC signal is returned.

  When the detection of the vehicle-mounted device is completed, the tester 50 transmits a BST signal to each detected ETC vehicle-mounted device 30 and receives a VST signal as a response to this signal, so that the ETC vehicle-mounted device 30 Know the number of functions you have. And based on this number, a priority control command is transmitted to the ETC onboard equipment 30.

In this way, the tester 50 sets so that only one ETC on-board unit 30 responds to the ETC roadside device 10.
In the above processing, the processing of S130, S310 to S330 corresponds to the vehicle-mounted device detection means in the present invention, and the processing of S160, S240 to S260 corresponds to the response stop means. Further, the processing of S170, S180, S310, S320, and S340 corresponds to the vehicle-mounted device status acquisition means referred to in the present invention, the processing of S250 corresponds to the on-vehicle device determining means, and the processing of S550 and S560 is the operation changing device. It corresponds to.

[Effects of this embodiment]
In the communication system 1 described in detail above, the control unit 51 of the tester 50 transmits an ETC call signal for calling the ETC on-board unit 30 mounted on the vehicle in the tester transmission process and the tester reception process. By detecting a response to the call signal, it is determined whether or not there are a plurality of ETC in-vehicle devices 30 mounted on the vehicle.

  According to such a communication system 1, it is possible to detect that a plurality of ETC in-vehicle devices 30 are arranged in the vehicle. Therefore, by referring to this detection result and setting the state in which only one of the plurality of ETC on-board units 30 can be used, it is possible to prevent the occurrence of an error on the ETC gate side. Therefore, it is possible to prevent a vehicle equipped with a plurality of ETC in-vehicle devices 30 from colliding with the toll gate.

  Further, in the communication system 1, the control unit 51 of the tester 50 prevents other ETC on-board devices 30 other than one ETC on-board device 30 from responding at least to the ETC call signal when a plurality of ETC on-board devices 30 are detected. Set to.

  According to such a communication system 1, even when a plurality of ETC in-vehicle devices 30 are arranged in the vehicle, the ETC in-vehicle device 30 that responds to the ETC call signal without performing complicated operations by the operator is provided. Can only be set to one.

  Further, in the communication system 1, the tester 50 acquires the on-board device state information indicating the state of the ETC on-board device 30, and determines the ETC on-board device 30 to be used for automatic fee collection based on the acquired on-board device state information. To do. And the control part 51 of the tester 50 sets so that the ETC onboard equipment 30 except the determined ETC onboard equipment 30 may not respond at least to an ETC call signal, when the some ETC onboard equipment 30 is detected.

  According to such a communication system 1, since the tester 50 acquires the in-vehicle device state information from each ETC on-vehicle device 30, for example, only the ETC on-vehicle device 30 having the best in-vehicle device state is used for automatic fee collection. The ETC on-board unit 30 can be set.

  Moreover, the control part 51 of the tester 50 acquires the classification of the function which each ETC onboard equipment 30 has, or the number of classifications from each ETC onboard equipment 30 as onboard equipment status information. Then, the control unit 51 of the tester 50 uses the ETC on-board device 30 having the largest number of functions based on the obtained function type or the number of types of each ETC on-board device 30 at the time of automatic fee collection. The ETC on-board device 30 to be determined is determined.

According to such a communication system 1, it is possible to determine the ETC on-board device 30 having the highest function as the ETC on-board device 30 to be used for automatic fee collection.
Further, in the communication system 1, when the on-board unit control unit 31 of the ETC on-board unit 30 receives a preset command from the outside in the ETC on-board unit processing, at least the ETC on-board unit 30 does not respond to the ETC call signal. Change the operation setting.

  According to such an ETC vehicle-mounted device 30, it is possible to set whether or not to respond to an ETC call signal in accordance with an external command. Therefore, when a plurality of ETC in-vehicle devices 30 are arranged in the vehicle, this setting operation can be easily performed when only one ETC in-vehicle device 30 responding to the ETC call signal is set.

[Other Embodiments]
Embodiments of the present invention are not limited to the above-described embodiments, and can take various forms as long as they belong to the technical scope of the present invention.

  For example, in the above-described embodiment, in the processing of S250 and S260 of the tester transmission process, the priority control command is transmitted to both the ETC on-board device 30 that is preferentially used and the non-priority ETC on-board device 30. However, you may make it transmit a priority control command only to the ETC on-board equipment 30 used preferentially, or only to the ETC on-board equipment 30 made non-prioritized.

  Furthermore, in the above-described embodiment, the ETC on-vehicle device 30 having the maximum number of functions based on the VST signal is set as an on-vehicle device to be used preferentially. When information regarding the presence or absence of a function for stopping receipt is included, priority control may be set so that the ETC on-vehicle device 30 that does not have this function is used preferentially.

  In this way, even when only one ETC on-board unit that does not have a function to stop automatic toll collection according to the priority control command is mounted on the vehicle, the priority control command is transmitted. Can be enjoyed (stopping the automatic toll collection function for on-vehicle devices excluding only one ETC on-vehicle device).

  DESCRIPTION OF SYMBOLS 1 ... Communication system, 5 ... In-vehicle LAN, 10 ... ETC roadside machine, 11 ... ETC control part, 12 ... Toll booth antenna, 20 ... DSRC roadside machine, 21 ... DSRC control part, 22 ... DSRC antenna, 30 ... ETC onboard equipment , 31 ... OBE control unit, 32 ... radio unit, 33 ... OBE antenna, 34 ... communication unit, 35 ... storage unit, 36 ... display unit, 37 ... speaker, 38 ... input operation unit, 39 ... IC card control unit 40 ... IC card connector, 50 ... tester, 51 ... control unit, 52 ... wireless unit, 53 ... power supply unit, 54 ... recording unit, 55 ... display unit, 56 ... speaker, 57 ... operation unit, 58 ... external I / F, 60 ... navigation device, 65 ... power supply, 80 ... ignition switch, 90 ... IC card, 91 ... processing unit, 92 ... storage unit.

Claims (5)

An on-vehicle device detection device for detecting an ETC (registered trademark) on-vehicle device that represents an on-vehicle device corresponding to an automatic fee collection system,
On-board device detection means for determining whether or not there are a plurality of ETC on-board devices mounted on the vehicle by transmitting an ETC call signal for calling an ETC on-board device mounted on the vehicle and detecting a response to the ETC call signal ,
A vehicle-mounted device detection device comprising: In the onboard equipment detection device according to claim 1,
A response stop means for setting so that other ETC on-board devices other than one ETC on-board device do not respond to at least an ETC call signal when a plurality of ETC on-board devices are detected by the on-board device detection means;
A vehicle-mounted device detection device comprising: In the onboard equipment detection device according to claim 2,
OBE state acquisition means for acquiring OBE state information representing the state of each ETC OBE;
Based on the acquired in-vehicle device state information, use on-vehicle device determination means for determining an ETC on-vehicle device to be used at the time of automatic fee collection;
With
The response stop means is such that when a plurality of ETC on-board units are detected by the on-board unit detection unit, the ETC on-board units other than the ETC on-board unit determined by the use on-board unit determination unit do not respond to at least an ETC call signal. An in-vehicle device detection device characterized by setting as follows. In the onboard equipment detection device according to claim 3,
The on-vehicle device state acquisition means acquires, as the on-vehicle device state information, from each of the ETC on-vehicle devices, the type of function or the number of types possessed by each of the ETC on-vehicle devices,
The on-board device determining means uses an ETC on-vehicle device having the largest number of functions based on the type of function or the number of types of each acquired ETC on-vehicle device when automatic fee collection is performed. A vehicle-mounted device detection device characterized by being determined as a device. An ETC on-board device that represents an on-board device compatible with an automatic toll collection system,
An ETC on-board device comprising an operation changing means for changing an operation setting of the ETC on-vehicle device so as not to respond to at least an ETC call signal when receiving a command set in advance from the outside.

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