JP2020067767A - On-vehicle device - Google Patents

Abstract

To provide an on-vehicle device capable of preventing a driver from trying to pass through an ETC lane even though a vehicle cannot pass through the ETC lane.SOLUTION: An on-vehicle device includes: a communication control part 101 that reads information from an IC card, transmits the read information to a roadside device installed at a gate, and receives the information transmitted from the roadside device; a writing processing part 102 that writes gate information, which is information about the gate acquired through communication with the roadside device, into the IC card; and a memory 18 that temporarily stores the gate information. The writing processing part writes the gate information to the memory when writing the gate information to the IC card fails. The communication control part includes a notification processing part 103 that outputs a notification indicating that writing to the IC card has failed from the notification part at a preset notification timing after the time when the gate information is erased from the memory.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a vehicle-mounted device for an electronic toll collection system, and more particularly to processing when writing to an IC card fails.

  An on-vehicle device for an electronic toll collection (hereinafter referred to as ETC (registered trademark)) system (hereinafter, referred to as ETC on-vehicle device) communicates with a roadside device installed at an entrance gate and writes the received information to an IC card. If this writing fails, a technique of re-authentication and rewriting of the IC card at that time is also known, but the writing may fail even if the rewriting is performed.

  If the IC card cannot be written to, the ETC vehicle-mounted device notifies the driver of the error state. The driver who receives this notification will take measures such as entering the general lane at the exit gate.

  However, even if the driver was informed immediately after passing through the entrance gate that the IC card could not be written, when the driver approached the exit gate, the driver forgot that the IC card could not be written. There is a possibility that

  On the other hand, in Patent Document 1, the timing at which the driver is notified of the abnormality is when the driver approaches the tollgate. However, in the case of implementing the technique of Patent Document 1, the ETC vehicle-mounted device needs to acquire information for grasping the position of the tollgate, and adding parts for that leads to cost increase. Further, if the timing at which the driver is notified of the abnormality is immediately before the tollgate, the driver may panic and perform a driving operation.

JP, 2008-9912, A

  Therefore, when the writing to the IC card fails, the information received from the roadside device may be stored in the memory of the ETC vehicle-mounted device and the error state may not be notified. Then, at the time of communication with the roadside device installed at the next exit gate, the information stored in the memory is used instead of the information to be written in the IC card.

  However, since the information received from the roadside device has high security, it is necessary to delete it from the inside of the ETC vehicle-mounted device when removing the IC card and turning off the power of the ETC vehicle-mounted device.

  Therefore, if the user removes the IC card from the ETC on-board unit or turns off the power of the ETC on-board unit when the user takes a break in the service area, parking area, etc., the ETC lane at the next toll booth There is a problem that you can not pass through.

  In addition, the IC card is removed or the power of the ETC on-board unit is turned off, so that the error state is also erased. Therefore, when the IC card is inserted after that and the power of the ETC on-board unit is turned on. , There is no notification that there is an error condition. Therefore, the driver recognizes that the ETC vehicle-mounted device has returned to normal. As a result, at the next toll gate, there is a risk of trying to pass through the ETC lane even though communication with the roadside device is not possible.

  The present disclosure has been made based on this situation, and a first object thereof is an on-vehicle device having a memory for when writing to an IC card fails, and the vehicle passes through the ETC lane. It is to provide an in-vehicle device that can prevent a driver from trying to pass through an ETC lane even though it cannot.

  A second object is to provide an on-vehicle device that is equipped with a memory for when writing to an IC card fails, and that can suppress that the vehicle cannot pass through the ETC lane. .

  The above objective is achieved by a combination of features described in independent claims, and the subclaims define further advantageous embodiments. The reference numerals in parentheses in the claims indicate the correspondence with the specific means described in the embodiments described later as one aspect, and do not limit the disclosed technical scope.

One disclosure for achieving the above-mentioned object is an on-vehicle device for a toll collection system,
Information is read from the IC card that is detachably attached to the vehicle-mounted device and stores information related to fee payment, and the read information is sent to the roadside device installed at the gate and the information sent from the roadside device is received. A communication control unit (101)
A writing processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing gate information,
The writing processing unit writes the gate information to the memory when the writing of the gate information to the IC card fails, and stores it in the memory when the power supply of the vehicle-mounted device is turned off or the IC card is removed. Erase the gate information
The communication control unit, when the gate information is stored in the memory at the time of communication with the roadside device, performs communication with the roadside device using the gate information stored in the memory,
A notification processing unit (103) that outputs a notification indicating that writing to the IC card has failed at a predetermined notification timing after the time when the gate information is erased from the memory is output from a predetermined notification unit.

  This onboard device notifies that the writing to the IC card has failed at the preset notification timing after the time when the gate information stored in the memory is erased. Can suppress the vehicle from trying to pass through the ETC lane even though the vehicle cannot pass through the ETC lane.

Another disclosure for achieving the above object is an on-vehicle device for a toll collection system,
The information is read from the IC card that is detachably attached to the vehicle-mounted device and stores the information related to fee payment, and the read information is transmitted to the roadside device installed at the gate and the information transmitted from the roadside device is received. A communication control unit (101)
A writing processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing gate information,
The writing processing unit writes the gate information to the memory when the writing of the gate information to the IC card fails, and stores it in the memory when the power supply of the vehicle-mounted device is turned off or the IC card is removed. Erase the gate information
The communication control unit, when the gate information is stored in the memory at the time of communication with the roadside device, performs communication with the roadside device using the gate information stored in the memory,
A notification processing unit (103) that outputs a notification requesting not to remove the IC card from a predetermined notification unit at a preset notification timing after the gate information is stored in the memory.

  In this vehicle-mounted device, if writing to the IC card fails and the gate information is stored in the memory, request not to remove the IC card at the preset notification timing after the time when the gate information is stored in the memory. The notification to be performed is output from a predetermined notification unit. As a result, it is possible to prevent an occupant of the vehicle from removing the IC card from the vehicle-mounted device, and as a result, it is possible to prevent the vehicle from being unable to pass through the ETC lane.

Another disclosure for achieving the above object is an on-vehicle device for a toll collection system,
The information is read from the IC card that is detachably attached to the vehicle-mounted device and stores the information related to fee payment, and the read information is sent to the roadside device installed at the gate and the information sent from the roadside device is received. A communication control unit (101)
A writing processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing gate information,
The writing processing unit writes the gate information to the memory when the writing of the gate information to the IC card fails, and stores it in the memory when the power supply of the vehicle-mounted device is turned off or the IC card is removed. While the existing gate information is deleted, a process of writing the gate information stored in the memory into the IC card is executed at a timing when it can be determined that communication is not being performed with the roadside device installed in the gate.

  In this vehicle-mounted device, when writing to the IC card fails, gate information is written to the memory. In addition, a process of writing the gate information stored in the memory into the IC card is executed at a timing when it can be determined that communication is not being performed with the roadside device installed at the gate. If this writing is successful, then even if the power supply of the vehicle-mounted device is turned off or the IC card is removed, the vehicle can pass through the ETC lane at the next tollgate. That is, it is possible to prevent the vehicle from being unable to pass through the ETC lane.

It is a block diagram which shows the structure of the ETC vehicle-mounted device 1 of 1st Embodiment. It is a flowchart which shows the process at the time of starting which the onboard equipment controller 10 performs. It is a flowchart which shows the process during starting which the onboard equipment controller 10 performs. It is a flow chart which shows the end processing which the onboard equipment controller 10 performs. It is a flow chart which shows the end processing which the onboard equipment controller 10 performs in a 2nd embodiment. It is a flowchart which shows a part of starting process which the onboard equipment controller 10 performs in 3rd Embodiment. It is a flow chart which shows the end processing which the onboard equipment controller 10 performs in a 3rd embodiment.

(First embodiment)
<Schematic configuration of ETC vehicle-mounted device 1>
Hereinafter, embodiments will be described with reference to the drawings. The ETC vehicle-mounted device 1 shown in FIG. 1 is mounted on a vehicle and reads information necessary for payment of charges from the IC card 2. Then, the information necessary for toll collection, including the read information, is transmitted / received to / from the roadside device installed at the gate of the toll gate on the toll road. The ETC system includes a roadside device installed at the gate and the ETC vehicle-mounted device 1. The gates are installed at the start and end points of the toll section. When the vehicle travels in the pay section, the charge is fixed at either the start position or the end position of the pay section, and the charge is not paid at the other of the start position and the end position. However, in general, the gate on the side where payment is not made is also called the toll gate.

  The roadside devices included in the ETC system include, in addition to the roadside devices installed at the gates, roadside devices for notifying that the IC card 2 has been forgotten to be inserted in front of the toll gate. In addition, roadside devices that provide information for driving assistance are also known. In this specification, when simply described as a roadside device, it means a roadside device installed at a gate of a tollgate. Roadside equipment installed other than at the gate is the information providing roadside equipment.

  The IC card 2 has information (hereinafter referred to as payment card information) necessary for fee payment recorded in the built-in IC. A part of the payment card information is used for an authentication process that authenticates the validity and validity of the IC card 2. Below, the information used for this authentication processing is called authentication information. Further, the IC card 2 includes identification information for identifying each IC card 2 as a part of the payment card information. The identification information is, for example, a card number or the like, and may be a part of the authentication information.

  Further, the IC card 2 also stores information (hereinafter, gate information) received from a roadside device installed at the gate. The gate information includes information that can identify the gate. This gate information is also a part of the payment card information. It should be noted that the payment card information may include passage history information. The passage history information is information for identifying a roadside device with which the ETC vehicle-mounted device 1 has previously communicated with the IC card 2 inserted, and means a communication history with the roadside device for a certain number of times in the past.

  Further, the IC card 2 has a contact portion for electrically connecting with the outside to exchange information. When the IC card 2 is inserted into the ETC vehicle-mounted device 1 and electrically connected to the ETC vehicle-mounted device 1 through this contact portion, the IC card 2 responds to a request from the vehicle-mounted device controller 10 described later of the ETC vehicle-mounted device 1. , Outputs the recorded payment card information. The request from the vehicle-mounted device controller 10 is made by transmitting a command.

  As shown in FIG. 1, the ETC vehicle-mounted device 1 includes a vehicle-mounted device controller 10, a slot unit 11, a communication unit 14, a notification unit 15, an operation unit 16, a power supply circuit 17, and a memory 18.

  The slot portion 11 is a mounting portion for the IC card 2, and the IC card 2 is inserted therein. The slot portion 11 is provided with a card contact 12 and a card detection switch (hereinafter, card detection SW) 13.

  The card contact 12 physically contacts and is electrically connected to the contact portion of the IC card 2 inserted in the slot portion 11, and exchanges information with the IC card 2. The card contact 12 reads information from the IC card 2 or sends information to be written to the IC card 2, for example.

  The card detection SW 13 outputs a signal depending on whether or not the IC card 2 is inserted in the slot section 11. For example, it is turned on when the IC card 2 is inserted in the slot portion 11, and turned off when the IC card 2 is not inserted in the slot portion 11. When the IC card 2 is inserted into the slot portion 11 and turned on, the card detection SW 13 outputs a signal indicating that the IC card 2 is turned on to the vehicle-mounted device controller 10.

  The communication unit 14 has an antenna for wireless communication and performs wireless communication with roadside devices within the communication range. As an example, the communication unit 14 transmits, to the roadside device, information necessary for the payment process, including the payment card information read from the card contact 12, by the short-range wireless communication conforming to ARIB STD-T75, and the roadside device. Receive the information sent from the machine. The communication unit 14 also communicates with the information providing roadside device using the same antenna.

  The notification unit 15 gives a notification according to an instruction from the vehicle-mounted device controller 10. As an example, the notification unit 15 includes a speaker. Various voice messages are output from the speaker. The notification unit 15 can also include a display unit. An example of the display unit has a configuration including one or several LEDs. Further, in addition to the notification unit 15 included in the ETC vehicle-mounted device 1, one or both of the speaker and the display unit mounted on the vehicle may be used instead of the notification unit 15 or together with the notification unit 15.

  The operation unit 16 is, for example, a mechanical switch (hereinafter, SW) provided in the main body of the ETC vehicle-mounted device 1, and is used to instruct the vehicle-mounted device controller 10 to operate various functions by operating the switch. Specifically, the volume SW for adjusting the volume of the speaker of the notification unit 15, the card eject SW for ejecting the IC card 2 inserted in the slot unit 11, and the usage history information of the IC card 2 are notified to the notification unit 15. There is a history confirmation SW for outputting from the speaker of. An example of the usage history information is a history of charged charges.

  The power supply circuit 17 is always connected to the power supply line and the ACC power supply line. Electric power is supplied to the constant power supply line from the vehicle-mounted battery even when the power supply position is in the off position. The power position means a power supply state of the vehicle that can be switched by the driver, and can be switched by rotating a key inserted in the key cylinder or operating a push button. Electric power is supplied to the ACC power supply line from the vehicle-mounted battery when the power supply position is the ACC position and the on position.

  The power supply circuit 17 generates a power supply of a voltage at which the ETC vehicle-mounted device 1 can operate from the power supplied from the vehicle-mounted battery and supplies the power supply to the vehicle-mounted device controller 10. The ACC power supplied to the power supply circuit 17 is used to determine the power supply position.

  The vehicle-mounted device controller 10 determines that the power supply position is the off position because the ACC power is not supplied. When the power position becomes the off position, the functions of the ETC vehicle-mounted device 1 are turned off except the function of determining the power position. With such a configuration, the vehicle-mounted device controller 10 can continue processing even when the power supply position is in the off position. Examples of the processing executed by the vehicle-mounted device controller 10 after the power supply position is turned off include the processing of writing information in the memory 18 and the processing of notifying that the IC card 2 remains.

  The memory 18 has a configuration capable of writing and erasing information, and can temporarily store the gate information described above. A RAM, a flash memory, or the like can be used as the memory 18.

<Schematic configuration of the vehicle-mounted device controller 10>
Subsequently, a schematic configuration of the vehicle-mounted device controller 10 will be described. The vehicle-mounted device controller 10 can be realized by a configuration including at least one processor. For example, the vehicle-mounted device controller 10 can be realized by a computer including a CPU, a ROM, a RAM, an I / O, and a bus line connecting these configurations. A program for causing a general-purpose computer to function as the vehicle-mounted device controller 10 is stored in the ROM. As the CPU executes the program stored in the ROM while using the temporary storage function of the RAM, the vehicle-mounted device controller 10 causes the communication control unit 101, the write processing unit 102, and the notification process to be performed as illustrated in FIG. 1. It has a function as the unit 103.

  The storage medium that stores the program executed by the CPU is not limited to the ROM. For example, the above program may be stored in a flash memory. Further, some or all of the functions of the vehicle-mounted device controller 10 may be realized by using one or a plurality of ICs (in other words, as hardware). Examples of the above ICs are ASIC and FPGA, and these are also examples of processors. Further, some or all of the functions of the vehicle-mounted device controller 10 may be realized by a combination of software execution by a CPU and hardware members.

  The communication control unit 101 reads the payment card information from the IC card 2 via the card contact 12. However, the gate information included in the payment card information may be stored in the memory 18 when writing to the IC card 2 fails. If the writing to the IC card 2 has failed, the gate information is read from the memory 18 instead of reading the gate information from the IC card 2.

  Then, the communication control unit 101 generates transmission information based on the payment card information and the vehicle-mounted device specific information stored in the ETC vehicle-mounted device 1, and transmits the transmission information from the communication unit 14 to the roadside device. . The communication control unit 101 also acquires from the communication unit 14 the gate information transmitted from the roadside device and received by the communication unit 14.

  When reading the payment card information from the IC card 2, the communication control unit 101 first performs an authentication process on the IC card 2. The authentication process is a process of authenticating the validity and validity of the IC card 2 inserted in the slot 11.

  In the authentication process, when it is determined that the IC card 2 is inserted by the signal from the card detection SW 13, the IC of the IC card 2 is activated by supplying the clock through the card contact 12 to activate the IC card 2. Let Then, a series of commands such as reading the authentication information from the IC card 2 is transmitted, and the authentication information is output from the IC card 2 in response to this command. Then, if the validity and validity of the IC card 2 are affirmed from this authentication information, the authentication succeeds, and if the validity or validity of the IC card 2 is denied, the authentication failure is confirmed.

  The writing processing unit 102 writes the gate information acquired by the communication control unit 101 into the IC card 2 via the card contact 12. However, writing to the IC card 2 may fail. If the writing has failed, the gate information is temporarily stored in the memory 18. Then, when the power of the ETC vehicle-mounted device 1 is turned off and when the IC card 2 is taken out from the slot portion 11, the information stored in the memory 18 is erased. The reason for erasing is that the information stored in the memory 18 is information with high security, and is a process required for all ETC vehicle-mounted devices.

  When the writing processing unit 102 fails to write the gate information into the IC card 2, the notification processing unit 103 causes the notifying unit 15 to output a writing failure notification at a predetermined notification timing. The notification timing of notifying the write failure notification is after the time when the gate information is erased from the memory 18. If it is before this point, even if the gate information is not stored in the IC card 2, the vehicle uses the gate information stored in the memory 18 instead, so that the vehicle can normally operate as the roadside device at the next gate. Because it can communicate with.

  The writing failure notification is a notification indicating that writing to the IC card 2 has failed and a specific action that the driver needs to take. The notification that indicates the specific action is a notification that means that it is necessary to drive in a general lane. For example, the writing failure notification is "I could not write to the card when using ETC. Those who are using the expressway Please drive in a general lane. "

  Further, when the writing processing unit 102 stores the gate information in the memory 18, the notification processing unit 103 outputs an insertion continuation request notification from the notification unit 15 at a predetermined timing after the time when the gate information is stored in the memory 18. Let The insertion continuation request notification is a notification requesting to continue the state in which the IC card 2 is inserted, in other words, a notification requesting not to remove the IC card 2. This notification can be a voice notification, and the content of the voice message can be, for example, "If you remove the card, you will not be able to pass through the ETC lane. Please do not remove the card."

  The above is the outline of the processing executed by the vehicle-mounted device controller 10. The process executed by the vehicle-mounted device controller 10 will be described in more detail below with reference to FIGS. 2 to 4.

<Startup process>
FIG. 2 shows a process executed by the vehicle-mounted device controller 10 when the ETC vehicle-mounted device 1 is activated. The ETC vehicle-mounted device 1 is started by supplying ACC power. The processing shown in FIG. 2 is executed by the notification processing unit 103.

  In step (hereinafter, step is omitted) S10, it is determined whether the IC card 2 is mounted in the slot portion 11. This judgment is made based on the signal supplied from the card detection SW 13. If the determination result in S10 is NO, the process proceeds to S20.

  In S20, the notification unit 15 outputs a card non-attachment notification. The card non-attachment notification is, for example, a voice message such as “card not inserted”.

  In subsequent S30, it is determined again whether the IC card 2 is mounted in the slot portion 11. If the determination result of S30 is NO, the determination of S30 is repeated. On the other hand, if the determination result in S30 is YES, the process proceeds to S40. Also, if the determination result in S10 is YES, the process proceeds to S40.

  In S40, the payment card information is read from the IC card 2 and temporarily stored in the memory 18. The payment card information stored here is retained until the ETC vehicle-mounted device 1 is turned off or the IC card 2 is removed. As described above, when the payment card information is read from the IC card 2, the IC card 2 is first authenticated. Furthermore, in S40, transmission information to be transmitted to the roadside device in S120 of FIG. 3 is generated in advance. The transmission information is information that the ETC vehicle-mounted device 1 needs to transmit to the roadside device for payment processing. The transmission information includes payment card information and vehicle-mounted device-specific information such as license plate information. The vehicle-mounted device-specific information is acquired from the nonvolatile memory included in the ETC vehicle-mounted device 1.

  In S50, it is determined whether or not the writing of the gate information has failed and the writing has failed. The write failure state is changed in the processing during startup shown in FIG. If the determination in S50 is no, the startup process shown in FIG. 2 ends. On the other hand, if the determination in S50 is YES, the process proceeds to S50.

  In S60, the write failure notification is output from the notification unit 15. There is no change in the position of the vehicle between when the vehicle is powered off and when it is next started. When the power supply position is turned off, if the situation in which the next gate cannot be passed due to writing failure in the IC card 2, the vehicle is located at a position that has not yet passed the gate at the next start. Therefore, by outputting the write failure notification from the notification unit 15 at the time of startup, the write failure is notified when the time to reach the gate is shorter than when the write failure is notified when the power is turned off. it can. After executing the process of S50, the process proceeds to the process during activation shown in FIG.

<Processing during startup>
Next, the starting process shown in FIG. 3 will be described. Of the processes shown in FIG. 3, S110, S120, S160, and S180 are processes executed by the communication control unit 101, S130 to 150 and S200 are processes executed by the write processing unit 102, and S190 is the notification processing unit 103. Is a process executed by.

  In S110, it is determined whether or not communication with the roadside device has started. The roadside device periodically transmits an FCM (Frame Control Message) to the communication range. When the communication unit 14 receives this FCM, the communication control unit 101 transmits / receives a signal according to a protocol, such as transmitting an on-vehicle device signal including an ID and the like. As a result, communication between the roadside device and the ETC vehicle-mounted device 1 is started.

  If the determination result in S110 is NO, the in-startup process is temporarily terminated. If the determination result of S110 is YES, it will progress to S120. In S120, information for payment processing is transmitted and received. The information transmitted from the ETC vehicle-mounted device 1 to the roadside device is the transmission information generated in advance in S40 or S160 or S180 described later. Gate information is transmitted from the roadside device.

  In the subsequent S130, if the write failure state has occurred, the write failure state is terminated. This is because the gate information is newly obtained by the communication with the roadside device this time, and the gate information is written in the next S140.

  In S140, a writing process for writing the gate information received from the roadside device in the process of S120 into the IC card 2 is executed. In S150, it is determined whether or not the writing was successful in the process of S140. Whether the writing is successful or unsuccessful can be determined, for example, by reading the data written in the IC card 2 from the IC card 2 and comparing the read data with the written data. Alternatively, if a command is transmitted to the IC card 2 but there is no response to the command, it may be determined that the writing has failed.

  If the determination result of S150 is "success", the process proceeds to S160. In S160, transmission information is generated. The transmission information generated here includes, in addition to the various information described above, the gate information acquired this time through communication with the roadside device. After executing S160, the processing shown in FIG. 3 is terminated.

  On the other hand, if the determination result of S150 is “failure”, the process proceeds to S170. In S170, the gate information received from the roadside device is stored in the memory 18. In S180, transmission information is generated. In S180, the gate information of the transmission information is read from the memory 18 and acquired.

  Then, in S190, the notification of the insertion continuation request is output from the notification unit 15, and in S200, the fact that the writing has failed is stored in a rewritable ROM such as a flash memory. When the process of FIG. 3 is completed, the end process shown in FIG. 4 is executed.

<End processing>
Next, the starting process shown in FIG. 4 will be described. Of the processes shown in FIG. 4, S310 to S340, S360, S370, and S390 are processes executed by the notification processing unit 103, and S350 and S380 are processes executed by the write processing unit 102.

  In S310, it is determined whether the IC card 2 has been removed. If the determination result of S310 is NO, it will progress to S320. In S320, it is determined whether or not the power source position is the off position. When the ACC power is no longer supplied, it is determined that the power position is in the off position. If the decision result in S320 is NO, the process returns to S110. That is, the process returns to the starting process.

  If the determination result of S310 is YES, it will progress to S330. In S330, it is determined whether or not the writing has failed. If the determination result of S330 is NO, that is, if the write failure state has not been reached, the process proceeds to S350. On the other hand, if the determination result of S330 is YES, the process proceeds to S340. In step S340, the notification unit 15 outputs a write failure notification. In S350, the information stored in the memory 18 is erased. Then, the process returns to S10.

  If the determination result of S320 is YES, it will progress to S360. In S360, it is determined whether the writing has failed. When the result of the determination in S360 is NO, that is, when the write failure state has not been reached, the process proceeds to S380. If the determination result of S360 is YES, it will progress to S370. In S370, the notification unit 15 outputs a write failure notification. In subsequent S380, the information stored in the memory 18 is erased. Then, in step S390, the power supply of the ETC vehicle-mounted device 1 is turned off.

<Summary of First Embodiment>
As described above, in the first embodiment described above, when the gate information received through the communication with the roadside device fails to be written in the IC card 2, the gate information is stored in the memory 18 (S170). Then, at the time of communication with the next roadside device, transmission information is generated using the gate information stored in the memory 18 (S180). As a result, even if the writing of the gate information to the IC card 2 fails, the next gate can normally communicate with the roadside device and pass through the ETC lane.

  However, the information stored in the memory 18 must be erased when the ETC vehicle-mounted device 1 is turned off and when the IC card 2 is removed. Therefore, even when the gate information is stored in the memory 18, if the IC card 2 is removed, the next gate cannot normally communicate with the roadside device. Therefore, when the ETC vehicle-mounted device 1 according to the present embodiment fails in writing to the IC card 2 and stores the gate information in the memory 18, the notification unit 15 issues an insertion continuation request notification such as “Please do not remove the card”. Output. As a result, it is possible to prevent the occupant of the vehicle from pulling out the IC card 2 from the slot portion 11, and as a result, it is possible to prevent the normal communication with the roadside device at the next gate.

  Further, in the present embodiment, the state in which the gate information is stored in the memory 18 is set as the writing failure state, and the writing failure notification is sent to the notification unit when the IC card 2 is removed and the writing failure state is set. It is output from 15 (S340). Further, even when the power position is turned off, if the writing is in a failed state, the writing failure notification is output from the notification unit 15 before the power is turned off (S370). Moreover, the writing failure notification includes a message that prompts the user to drive to the general lane. Therefore, by these processes, the driver can suppress the vehicle from passing through the ETC lane even though the vehicle cannot pass through the ETC lane.

  Further, in the present embodiment, if the writing has failed, the writing failure notification is issued at the next power-on with the IC card 2 mounted, and also when the IC card 2 is mounted after the power-on. It is output from the notification unit 15 (S60). As a result, when the time required to reach the gate is shorter than when the power is turned off, the write failure is notified. Therefore, it is possible to further suppress the driver from trying to pass through the ETC lane even though the vehicle cannot pass through the ETC lane.

(Second embodiment)
Next, a second embodiment will be described. In the following description of the second embodiment, elements having the same reference numerals as those used up to that point are the same as the elements having the same reference numerals in the previous embodiments, unless otherwise specified. Further, when only a part of the configuration is described, the above-described embodiment can be applied to the other part of the configuration.

  In the second embodiment, the ending process is different from that in the first embodiment. FIG. 5 shows a termination process executed by the vehicle-mounted device controller 10 in the second embodiment. The termination process shown in FIG. 5 differs from the termination process shown in FIG. 4 in that S361, S362, S363, and S364 are added. The write processing unit 102 executes S361 and S364, and the notification processing unit 103 executes S362 and S363.

  In the ending process shown in FIG. 5, if it is determined in S320 that the power supply position is the off position, and in S360 that it is in the write failure state, the process proceeds to S361. In S361, a write back process is executed. The write-back process means that the process of writing the gate information stored in the memory 18 into the IC card 2 is executed again. The writing process was executed after communication with the roadside unit, and the writing process failed.However, the reason why the writing process failed was a temporary contact defect due to vibrations caused by the vehicle running. Sometimes. Therefore, in the second embodiment, the process of writing the gate information stored in the memory 18 into the IC card 2 is executed again before the information stored in the memory 18 is erased.

  However, rewriting to the IC card 2 requires re-authentication of the IC card 2, and communication with the roadside device cannot be performed while the authentication processing of the IC card 2 is being executed. Therefore, rewriting to the IC card 2 needs to be performed at a timing when communication with the roadside device is not performed. Therefore, in the second embodiment, the write-back process is executed at the timing when the power is turned off. It can be estimated that the vehicle is not running when the power is turned off. On the other hand, communication with the roadside device is performed while traveling. Therefore, at the power-off timing, it can be estimated that communication with the roadside device is not being performed. Therefore, the write-back process is executed at the timing when the power is turned off.

  In S362, it is determined whether or not the write back is successful. The method for determining the success or failure of the write back is the same as the method for determining the success or failure of the writing executed in S150. If the determination result of S362 is YES, it will progress to S363.

  In S363, the notification unit 15 outputs a write success notification. The write success notification is a message that indicates that the ETC lane can be passed because the rewriting process to the IC card 2 has succeeded. The reason why the write success notification is output is to notify the occupant that it is not necessary to pay attention to the content of the insertion continuation request notification because the insertion continuation request notification has already been notified in S190. Note that S190 can be omitted. Then, when S190 is omitted and the insertion continuation notification is not notified, this S363 is not executed and the process proceeds to S364. In S364, the write failure state ends. Then, it progresses to S380.

  On the other hand, if the decision result in S362 is NO, the already-described S370 is executed to cause the notification unit 15 to output a write failure notification.

<Summary of Second Embodiment>
In the second embodiment, since the write-back process (S361) is executed, even if the write-back process succeeds once, if the write-back is successful, even if the gate information is erased from the memory 18, the next gate is deleted. You can cross the ETC lane at.

  Also, the write-back process is executed when the power is turned off, and when the power is turned off, it can be estimated that it is the timing when communication with the roadside device is not performed. It is also possible to suppress the loss of communication with the roadside device.

  Further, in the second embodiment, the write-back process is first performed when the power is turned off. Then, if the write back is successful, the write failure notification is not output. As a result, the number of cases in which the writing failure notification is output is reduced, and the number of cases in which the occupant must be aware that writing to the IC card 2 has failed is reduced.

(Third Embodiment)
The third embodiment differs from the first embodiment in a part of the starting process and the ending process. FIG. 6 shows a part of the startup process executed by the vehicle-mounted device controller 10 in the third embodiment. The omitted parts are the same as in the first embodiment. The end process shown in FIG. 6 is different from the end process shown in FIG. 3 in that S141 to S144 and S182 are added. The write processing unit 102 executes S141 to S144, and the notification processing unit 103 executes S182.

  In the third embodiment, in S140, after the writing process of the gate information acquired through the communication with the roadside device is executed, S141 is executed. In S141, it is determined whether or not past gate information is stored in the memory 18. As an example of a case where past gate information is stored in the memory 18, when writing fails at the entrance gate, gate information about the entrance gate is stored in the memory 18, and gate information about the exit gate is received at the exit gate There is. In this case, the gate information about the entrance gate stored in the memory 18 becomes the past gate information.

  If the determination result of S141 is YES, it will progress to S142. In S142, a process of writing back the past gate information stored in the memory 18 is executed. In S143, it is determined whether or not the write back is successful. The process of S143 is the same as S362. If the determination result of S143 is YES, it will progress to S144. In S144, the rewritten information is erased from the memory 18. If the determination result in S143 is NO or if S144 is executed, the process proceeds to S150.

  In the process of S142, even if the gate information that could not be written in the IC card 2 at the entrance gate is written in the above example, that is, at the exit gate, it cannot be used for the charge settlement. This is because the charge settlement has already been completed at the exit gate with the gate information stored in the memory 18. However, the ETC vehicle-mounted device 1 has a history confirmation function, and in consideration of the history confirmation, it is meaningful to write the gate information about the entrance gate stored in the memory 18 at the exit gate.

  The timing of executing S142 is immediately after the timing of writing the gate information acquired by the current communication with the roadside device. At this timing, it can be estimated that it is a timing at which communication with the roadside device is not performed. Therefore, by executing the writing process to the IC card 2, it is possible to suppress the loss of communication with the roadside device. .

  In S150, as described in the first embodiment, it is determined whether or not the writing is successful, and if it is determined that the writing is unsuccessful, the gate information is stored in the memory 18 in S170 and transmitted in S180. Generate information.

  After that, in the third embodiment, S181 is executed. S181 is the same as S200 in the first embodiment, and stores that the writing has failed. In subsequent S182, it is determined whether or not the roadside device that has communicated this time is the roadside device installed at the exit gate. Then, if it is determined that the gate is the exit gate, the in-startup process is terminated without executing S190 described above.

  The gate information of the exit gate is used when confirming the history, but the gate information is not used in the settlement process at the next gate. When the gate information is not used in the payment process, the necessity of alerting the passenger is relatively low. Therefore, when it is determined that the device is a roadside device installed at the exit gate, S190 is executed and the process during activation is ended without outputting the insertion continuation request notification.

  By the way, the gate information does not include information that directly indicates whether the gate on which the roadside machine is installed is the exit gate or the entrance gate. However, the gate information includes billing information. The billing information is information indicating how much the toll is, and is transmitted from the roadside device when the toll is fixed. On many toll roads, tolls are fixed at the exit gate. Therefore, in this embodiment, when the gate information includes the billing information, it is determined that the roadside device that has communicated this time is the roadside device installed at the exit gate.

  It should be noted that when the billing process is performed at the entrance, a bar is often not installed at the exit gate. Therefore, even if it is determined that the gate is actually the entrance gate based on this judgment, it is unlikely that the driver will be confused because the bar does not open at the exit gate.

  FIG. 7 shows termination processing executed in the third embodiment. The end process shown in FIG. 7 is different from the end process shown in FIG. 4 in that S331 and S361 are added. In the termination process of the third embodiment, when it is determined in S330 that the writing is unsuccessful, S331 is executed and it is determined whether or not the roadside device that has failed writing is installed at the exit gate. The specific determination in S331 is the same as in S192.

  When it is determined in S331 that the gate is the exit gate, the process proceeds to S350 without executing S340. Therefore, when it is determined that the gate is the exit gate, the writing failure notification is not output even if the IC card 2 is removed.

  Further, in the ending process shown in FIG. 7, even when it is determined that the writing has failed in S360, S361 is executed to determine whether or not the roadside device that has failed writing is installed at the exit gate. . The specific determination in S361 is the same as in S182. If it is determined in S361 that the gate is the exit gate, S370 is skipped and the process proceeds to S380. Therefore, when it is determined that the gate is the exit gate, the write failure notification is not output even when the power is turned off.

<Summary of Third Embodiment>
According to the third embodiment, even if the writing of the gate information to the IC card 2 fails, if it is determined that the gate information is the information acquired from the roadside device installed at the exit gate, the insertion is performed. Do not execute S190 for outputting the continuation request notification. In addition, the writing failure notification is not output even when the IC card 2 is removed or the power is turned off. By doing so, when writing at the entrance gate fails, unnecessary notification can be suppressed while notifying the occupant of the vehicle to take appropriate measures.

  Although the embodiments have been described above, the disclosed technology is not limited to the above-described embodiments, and the following modified examples are also included in the disclosed range, and further within the scope not departing from the gist other than the following. Various modifications can be implemented.

(Modification 1)
In the embodiment, the writing failure notification is issued when the IC card 2 is removed (S340), when the power of the ETC vehicle-mounted device 1 is turned off (S370), when the next power is turned on after the power is turned off (S60). It was output at the timing (S60) when the card 2 was reattached. However, the timing of outputting the write failure notification is not limited to the timing shown in the embodiment. The timing of outputting the write failure notification may be after the point of time when the gate information is erased from the memory 18. The reason for excluding the time before erasing the gate information from the memory 18 is that if the gate information is stored in the memory 18 even if the writing to the IC card 2 fails, the gate stored in the memory 18 This is because the information can be used to communicate with the roadside device.

  The timing after the point when the gate information is erased from the memory 18 and the timing other than the timing shown in the embodiment is, for example, when communicating with the information providing roadside device or a certain time after that. .

  As one specific example of the information providing roadside device, there is one called a notification antenna. The notification antenna is an antenna that notifies the driver that the gate at the toll gate is near. If the writing failure notification is output when communicating with the antenna, and if the writing failure notification is output during the communication or at a certain time after that, the writing failure notification is output and the gate is passed soon after. Is likely to. Therefore, there is a high possibility that the driver will avoid the ETC lane and pass through the general lane.

  An optical beacon is another specific example of the information providing roadside device. The optical beacon conveys various information such as traffic congestion information. Further, as another example of the information providing roadside device, there is a roadside device (hereinafter referred to as ETC2.0 roadside device) installed to provide ETC2.0 service. This ETC 2.0 roadside device is sometimes called a radio beacon.

(Modification 2)
In the embodiment, the insertion continuation request notification is output when the writing to the IC card 2 fails. However, the timing of outputting the insertion continuation request notification is not limited to the time when the writing to the IC card 2 fails. The insertion continuation request notification may be output before the communication using the gate information stored in the memory 18 is performed. For example, when the notification of the insertion continuation request is given by the display, the notification may be continuously given after the time when the writing to the IC card 2 fails.

(Modification 3)
In the embodiment, it is determined that the roadside device that has communicated when the writing of the gate information fails is the roadside device installed at the exit gate depending on the presence or absence of the charging information. However, the method of determining whether or not the roadside machine is the roadside machine installed at the exit toll gate is not limited to this. The ETC2.0 roadside device may transmit information including the road type to the ETC vehicle-mounted device 1. Therefore, when the information indicating that the road type is a general road is received from the ETC2.0 roadside device, the roadside device that communicated when writing the gate information failed was the roadside device installed at the exit gate. presume. This is because if the vehicle is currently traveling on a general road, it can be estimated that the gate that passed immediately before was an exit gate.

(Modification 4)
In the embodiment, the write-back process is performed when the power supply of the ETC vehicle-mounted device 1 is turned off (S361). However, the timing of performing the write-back process is not limited to the time when the ETC vehicle-mounted device 1 is powered off. The timing for performing the write-back process may be any time when communication with the roadside device installed at the gate is not being performed.

  As another example of the timing for performing the write-back process, it may be possible to determine that the vehicle in which the ETC vehicle-mounted device 1 is mounted is stopped. This is because the roadside device installed at the gate communicates while traveling. For example, when the vehicle is equipped with a position detection device such as a GNSS receiver, the vehicle is stopped when the current position detected by the position detection device does not change. It can be determined that The GNSS receiver may be included in the ETC vehicle-mounted device 1.

  Further, as another example of the timing of performing the write-back process, there is a case where it can be determined that the road type of the road on which the vehicle is traveling is not a toll road. This is because there is no communication with the roadside device installed at the gate unless it is a toll road. As a method of determining the road type, there is a method of determining from the information obtained through the communication with the ETC 2.0 described above. Further, when connected to the navigation device, the road type may be acquired from the navigation device.

  Further, as another example of the timing of performing the write-back process, there are the time point at which the communication with the notification antenna described above is performed and a certain period thereafter. This is because the notification antenna is not installed at the gate.

  Further, as another example of the timing of performing the write-back process, there is a case where a button installed in the ETC vehicle-mounted device 1 is operated. The buttons are, for example, a volume SW and a history confirmation SW. This is because the vehicle occupant does not normally operate these switches while the vehicle is passing through the gate.

  The write-back process can be executed at any one or more of the various timings described above.

1: ETC on-board device 2: IC card 10: On-board device controller 11: Slot part 12: Card contact 13: Card detection SW 14: Communication part 15: Notification part 16: Operation part 17: Power supply circuit 18: Memory 101: Communication control Part 102: Write processing part 103: Notification processing part

Claims (10)

An in-vehicle device for a toll collection system,
Information is read from an IC card that is detachably attached to the vehicle-mounted device and stores information related to fee payment, and the read information is transmitted to the roadside device installed at the gate and the information transmitted from the roadside device. A communication control unit (101) for receiving
A write processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing the gate information,
The writing processing unit writes the gate information to the memory when writing the gate information to the IC card fails, and when the power supply of the vehicle-mounted device is turned off and the IC card is removed. In this case, the gate information stored in the memory is erased,
The communication control unit, when the gate information is stored in the memory during communication with the roadside device, performs communication with the roadside device using the gate information stored in the memory,
A notification processing unit (103) for outputting a notification indicating that writing to the IC card has failed from a predetermined notification unit at a preset notification timing after the time when the gate information is erased from the memory. On-board device.   The notification timing is at least one of when the power supply of the vehicle-mounted device is turned off, when the power is turned on after the power is turned off, when the IC card is removed, and when the IC card is reattached. The vehicle-mounted device according to claim 1, which is time.   The vehicle-mounted device according to claim 1 or 2, wherein the notification includes a notification indicating that it is necessary to drive in a general lane, in addition to a notification indicating that writing to the IC card has failed. An in-vehicle device for a toll collection system,
Information is read from an IC card that is removably attached to the vehicle-mounted device and stores information related to fee payment, and the read information is transmitted to the roadside device installed at the gate and the information transmitted from the roadside device. A communication control unit (101) for receiving
A write processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing the gate information,
The writing processing unit writes the gate information to the memory when writing the gate information to the IC card fails, and when the power supply of the vehicle-mounted device is turned off and the IC card is removed. In this case, the gate information stored in the memory is erased,
The communication control unit, when the gate information is stored in the memory during communication with the roadside device, performs communication with the roadside device using the gate information stored in the memory,
An in-vehicle device including a notification processing unit (103) for outputting a notification requesting not to remove the IC card from a predetermined notification unit at a preset notification timing after the gate information is stored in the memory vessel.   When the notification processing unit can determine that the roadside device that has communicated when the writing to the IC card fails is the roadside device installed at the exit gate, the notification processing is performed even at the notification timing. The vehicle-mounted device according to any one of claims 1 to 4, which does not output.   The notification processing unit, when receiving the charging information from the roadside device, communicates when writing to the IC card fails, and the roadside device communicated is the roadside device installed at the exit gate. The vehicle-mounted device according to claim 5, which is determined. The vehicle-mounted device is installed in a place other than a tollgate, and can communicate with an information providing roadside device that transmits information including a road type,
When the notification processing unit receives information indicating that the road type is a general road from the information providing roadside device, the roadside device when the writing to the IC card has failed is the exit gate. The vehicle-mounted device according to claim 5, wherein the vehicle-mounted device is determined to be the roadside device installed in the vehicle. An in-vehicle device for a toll collection system,
Information is read from an IC card that is detachably attached to the vehicle-mounted device and stores information related to fee payment, the read information is transmitted to a roadside device installed at a gate, and the information transmitted from the roadside device A communication control unit (101) for receiving
A write processing unit (102) for writing gate information, which is information about the gate acquired by the communication control unit through communication with the roadside device, into the IC card;
A memory (18) for temporarily storing the gate information,
The writing processing unit writes the gate information to the memory when writing the gate information to the IC card fails, and when the power supply of the vehicle-mounted device is turned off and the IC card is removed. In this case, the gate information stored in the memory is erased at the same time as the gate information stored in the memory is erased, while the gate information stored in the memory is determined to be not communicating with the roadside device installed in the gate. An in-vehicle device that executes a process of writing information to the IC card.   When the power supply of the vehicle-mounted device is turned off, the writing processing unit can determine that the vehicle in which the vehicle-mounted device is mounted is stopped, and can determine that the type of road on which the vehicle is traveling is not a toll road, At least one of when the button installed on the vehicle-mounted device is operated for a certain period after communication with the roadside device installed at a position other than the tollgate, the roadside installed on the gate The vehicle-mounted device according to claim 8, which is determined to be when communication is not being performed with the device. The write processing unit erases the gate information stored in the memory when the power supply of the vehicle-mounted device is turned off and when the IC card is removed,
A notification that outputs a notification indicating that writing to the IC card has failed from a predetermined notification unit at the time when the gate information stored in the memory is erased and at a preset notification timing thereafter. The vehicle-mounted device according to claim 8 or 9, further comprising a processing unit (103).

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