JP4487731B2 - Cardless automatic toll collection - Google Patents

Description

The present invention is a roadside installed on the roadside based on vehicle information necessary for specifying a vehicle stored in an internal storage medium and personal information required for specifying a person who pays a fee. The present invention relates to an on-board device for cardless automatic fee collection that performs communication with an antenna for fee collection.

2. Description of the Related Art Conventionally, an ETC ( ETC is a registered trademark ) system as a toll collection device that realizes toll collection by wireless communication has been put into practical use for the purpose of alleviating traffic jams at toll gates on toll roads.

  This ETC system performs wireless communication between a roadside antenna installed at a toll booth and an ETC on-board unit mounted on a vehicle, and identifies a vehicle based on wireless communication information and collects a toll fee. It has become. For this reason, the passing vehicle does not need to be temporarily stopped at the toll gate, and can pass through the toll gate without cash.

  Such an ETC on-vehicle device stores vehicle information such as an automobile registration number, a car name, and a model in an internal storage medium provided in the device by setup (initial information registration work) before using the ETC on-vehicle device. There is a need.

  In addition, when the ETC on-board device is replaced with another vehicle, the license plate number (automobile registration number) of the vehicle does not match the vehicle information including the number plate number transmitted from the ETC on-board device. Therefore, it is necessary to update the vehicle information of the ETC on-board device to the vehicle information of the vehicle to be newly attached by re-setup.

In order to prevent unauthorized installation of vehicle information or falsification of vehicle information during setup, an encryption key is generated based on the vehicle-mounted device manufacturing ID, and a payer required for toll collection is specified using this encryption key. For this reason, information for encrypting information for installation on a storage medium inside the vehicle-mounted device has been proposed (see, for example, Patent Document 1).
JP 2001-331826 A

  The above-mentioned ETC vehicle-mounted device has an ETC card insertion slot, and an IC chip in which personal information (hereinafter referred to as personal information) necessary for identifying a person who pays a fee is stored in the ETC card insertion slot. The ETC card is inserted. At the time of setup, vehicle information is installed in an internal storage medium using an ETC card for setup.

  However, in the configuration in which processing for toll collection using the ETC card as described above is performed, when the user leaves the vehicle, it is necessary to remove the ETC card from the on-board ETC device and carry it around to prevent theft.

  Accordingly, a cardless type ETC on-board device that eliminates the need for an ETC card by storing personal information stored in the IC chip of the ETC card together with vehicle information in an internal storage medium of the ETC on-board device is conceivable. Since such a cardless ETC on-board device does not need to be provided with an ETC card insertion slot, for example, even if it is used in an environment exposed to wind and rain such as a two-wheeled vehicle, dust and moisture will be generated from the ETC card insertion slot. There is no worry that it will break into the OBE and cause a failure.

  However, in such a cardless ETC in-vehicle device, personal information is stored together with vehicle information in the internal storage medium. Therefore, the cardless ETC on-vehicle device is stolen and only vehicle information in the internal storage medium is stored in another vehicle by re-setup. If the vehicle information is rewritten, the toll can be deducted from a bank account specified based on the personal information stored in the internal storage medium of the stolen cardless ETC on-board device. .

  Therefore, even if the cardless ETC in-vehicle device is stolen, it is necessary to prevent unauthorized use of personal information stored in the internal storage medium.

  The present invention has been made in view of the above points, and an object thereof is to prevent unauthorized use of personal information stored in an internal storage medium even if a cardless ETC in-vehicle device is stolen.

  In order to achieve the above object, in the invention described in claim 1, personal information necessary for identifying a person who pays a fee together with vehicle information necessary for identifying a vehicle is stored as setup data in a storage medium, A cardless ETC in-vehicle device that performs communication for toll collection with a roadside antenna installed on the roadside based on setup data stored in the storage medium, and receiving means for receiving setup data transmitted from the outside; Determining means for determining information included in the setup data received by the receiving means; and if the determining means determines that only the vehicle information is included in the setup data, the personal information in the storage medium is erased and the receiving means And a control means for storing the received vehicle information in a storage medium.

  As described above, when the determination unit determines that only the vehicle information is included in the setup data, the control unit erases the personal information in the storage medium and stores the vehicle information received by the reception unit in the storage medium. Even if the cardless ETC in-vehicle device is stolen, personal information stored in the internal storage medium can be prevented from being used illegally.

  Further, as in the invention described in claim 2, since the setup data is received by the receiving means for receiving the toll collection data transmitted from the roadside antenna, a means for receiving the setup data is newly provided. There is no need.

  Further, as in the third aspect of the invention, the control means may store the personal information received by the receiving means in the storage medium when the determining means determines that only the personal information is included in the setup data. it can.

  Further, in the invention according to claim 4, the control means erases the personal information in the storage medium when the determination means determines that both the vehicle information and the personal information are included in the setup data, and the receiving means Both received vehicle information and personal information are stored in a storage medium.

  FIG. 1 shows a block configuration of a cardless ETC vehicle-mounted device according to an embodiment of the present invention. The cardless ETC vehicle-mounted device 1 includes blocks of a human-machine interface 11, an ETC antenna 12, an ETC radio unit 13, an ETC communication control unit 14, a control unit 15, a security module 16, a nonvolatile memory 17 and a power supply unit 18. I have. Each of these blocks 11 to 18 is housed in the same housing.

  The human machine interface 11 includes a display device, a sound output device, and an input device (all not shown). The display device includes LEDs indicating normal operation and LEDs indicating abnormal operation, and these LEDs are turned on or off according to a signal from the control unit 15. The audio output device is configured by a speaker that generates audio corresponding to a signal from the control unit 15. The input device includes buttons, switches, and the like, and outputs signals based on user operations on these to the control unit 15.

  The ETC antenna 12 transmits and receives radio waves to and from a roadside antenna (not shown) installed on the roadside or the like.

  The ETC radio unit 13 performs amplification, frequency conversion, demodulation, A / D conversion and the like on the signal received by the ETC antenna 12 and outputs the resulting data to the ETC communication control unit 14. The ETC radio unit 13 performs D / A conversion, modulation, frequency conversion, amplification, and the like on the data input from the ETC communication control unit 14 and outputs the resulting signal to the ETC antenna 12.

  The ETC communication control unit 14 outputs the data input from the ETC radio unit 13 to the control unit 15, and outputs the data input from the control unit 15 to the ETC radio unit 13 at a timing according to the DSRC standard. To do.

  The control unit 15 includes a CPU, ROM, RAM, and flash memory (not shown). The CPU executes a program read from the ROM or flash memory, reads information from the ROM, RAM, and flash memory at the time of execution, and writes information to the RAM and flash memory. Data is exchanged with the human machine interface 11, the ETC communication control unit 14, and the security module 16.

  When the encrypted data is input from the control unit 15, the security module 16 decrypts the data. When the decrypted data includes a write command, the security module 16 writes the decrypted data to the nonvolatile memory 17. When the read command is included in the decrypted data, the data read from the nonvolatile memory 17 is encrypted and output to the control unit 15.

  The non-volatile memory 17 includes vehicle information (hereinafter referred to as vehicle information) necessary for specifying a vehicle such as an automobile registration number, a vehicle name, and a model, and an individual who pays a fee corresponding to an ETC card number, an expiration date, etc. Personal information necessary for specifying the password is stored as setup data.

  In addition, vehicle information and personal information stored in the non-volatile memory 17 are stored in an encrypted form and can be extracted only through the security module 16. Reading is disabled.

  The power supply unit 18 converts a voltage supplied from the vehicle battery via the accessory switch into a predetermined voltage and supplies the voltage to the blocks 11 to 17.

  In the configuration described above, the control unit 15 of the cardless ETC onboard device 1 includes the roadside antenna disposed at the ETC gate of the toll gate on the toll road via the ETC communication control unit 14, the ETC radio unit 13, and the ETC antenna 12. ETC communication for toll collection.

  Specifically, when the vehicle enters the communication area of the roadside antenna arranged at the ETC gate of the entrance toll gate of the toll road, the control unit 15 receives the ETC antenna 12, the ETC radio unit 13, and the roadside antenna. Encrypted entrance information is input via the ETC communication control unit 14, and the control unit 15 stores the entrance information in the RAM.

  Thereafter, when the vehicle enters the communication area of the roadside antenna disposed at the ETC gate of the exit toll gate of the toll road, the control unit 15 causes the roadside antenna, the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 to It sends and receives encrypted personal information, vehicle information, entrance information and exit information.

  Then, when the roadside antenna arranged at the exit toll gate receives these entrance information and vehicle information, the ETC roadside equipment connected to this roadside antenna is based on the entrance information and vehicle information received by the roadside antenna. Calculate the travel section and the travel fee to be charged. The exit ETC roadside equipment transmits this billing information to the cardless ETC on-board unit 1. When the control unit 15 receives this billing information via the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14, the control unit 15 temporarily stores it in the RAM, and exits to the nonvolatile memory 16 via the security module 16 after the communication is completed. It is memorized with information. On the other hand, the exit ETC roadside device deducts the charge from the account number based on the personal information sent from the ETC onboard equipment 1.

  In this way, the control unit 15 of the cardless ETC on-board device 1 performs ETC communication for toll collection with the roadside antenna arranged at the ETC gate of the toll gate on the toll road.

  In the above configuration, it is necessary to store the vehicle information and personal information in the nonvolatile memory 17 as setup data by setup (initial information registration work) before using the cardless ETC in-vehicle device 1. In addition, when the cardless ETC on-board device 1 is replaced with another vehicle, it is necessary to update the vehicle information of the ETC on-vehicle device to the vehicle information of the vehicle to be newly attached by re-setup.

  This setup is performed by wirelessly transmitting the setup data of vehicle information and the setup data of personal information from the external device for setup to the ETC antenna 12 of the cardless ETC on-vehicle device 1. The setup data is transmitted in a metal case that is electrically shielded from the external space so that the ETC antenna 12 of the cardless ETC on-board unit 1 does not receive other data by mistake. The less ETC onboard equipment 1 is installed and performed in this case.

  Moreover, as shown in FIG. 2, the cardless ETC onboard equipment 1 in this embodiment has already stored the vehicle information A and the personal information A as the setup data of the vehicle A in the nonvolatile memory 17 of the cardless ETC onboard equipment 1. In such a case, when the setup data of the vehicle B is transmitted and only the vehicle information B is re-registered in the nonvolatile memory 17 of the cardless ETC on-vehicle device 1, the personal information A is deleted so that only the vehicle information cannot be re-registered. It has become. Therefore, at the time of re-setup, it is necessary to set up personal information after setting up vehicle information.

  Next, a wireless communication process performed by the control unit 15 will be described with reference to FIG.

  First, in order to set up vehicle information, the cardless ETC vehicle-mounted device 1 is installed in a metal case. Then, when power is supplied to the cardless ETC on-vehicle device 1, the control unit 15 performs a predetermined initialization process, and then externally passes through the ETC communication control unit 14, the ETC radio unit 13, and the ETC antenna 12. The wireless communication process shown in FIG. 3 is periodically performed.

  First, when the setup data of the vehicle information is encrypted and transmitted from the setup external device to the cardless ETC on-vehicle device 1, the control unit 15 is connected to the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14. Vehicle setup data is input.

  The control unit 15 determines whether the communication data input via the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 is ETC communication data or setup data (S100).

  Here, it is determined that the communication data input via the ETC wireless unit 13 and the ETC communication control unit 14 is setup data (determined as setup data in S100), and whether the setup data is setup data for vehicle information or not. It is determined whether the information is setup data (S102).

  Here, it is determined that the setup data is setup data for vehicle information (determined as vehicle information in S102), and the personal information in the nonvolatile memory 17 is erased. Specifically, specific data (for example, 0) is stored in an area where personal information is stored in the nonvolatile memory 17 via the security module 16 (S104).

  Then, the vehicle information included in the setup data is written into the nonvolatile memory 17 (S106), and this process is terminated.

  Next, when the setup data of the personal information is encrypted and transmitted from the setup external device to the cardless ETC on-vehicle device 1, the control unit 15 includes the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14. Setup data of personal information is input via

  In this case, the control unit 15 determines in S100 that the communication data input via the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 is setup data (determined as setup data in S100). In S102, it is determined that the setup data is setup data of personal information (determined as personal information in 102).

  Then, the personal information included in the setup data is written into the nonvolatile memory 17. Specifically, the control unit 15 stores the personal information included in the setup data in the nonvolatile memory 17 via the security module 16 (S108), and ends this process.

  Thus, vehicle information and personal information are stored in the non-volatile memory 17. In addition, since the vehicle information and personal information are stored in an encrypted state and can be extracted only through the security module 16, the information stored in the non-volatile memory 17 is stored. Can be prevented from being read illegally.

  Thus, after the setup of the cardless ETC onboard equipment 1 is normally completed, the cardless ETC onboard equipment 1 is attached to the vehicle.

  When the user sets the engine key of the vehicle to the accessory position or the on position, the accessory switch is turned on and the cardless ETC vehicle-mounted device 1 is turned on. And the cardless ETC onboard equipment 1 will be in the standby state which can transmit / receive a radio signal with a roadside antenna.

  When the onboard vehicle enters the communication area of the roadside antenna installed at the ETC gate of the toll road, the control unit 15 receives the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 from the roadside antenna. ETC communication data is input.

  In this case, the control unit 15 determines in S100 that the communication data input via the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 is ETC communication data (in S100, the ETC communication data and Judgment), ETC communication conforming to the narrow area communication (DSRC) system standard (ARIB-STD-T75) is performed with the roadside antenna (S110), and the wireless communication processing shown in FIG.

  Moreover, when replacing the cardless ETC onboard equipment 1 with another vehicle, it is necessary to set up the cardless ETC onboard equipment 1 again.

  In this case, the cardless ETC vehicle-mounted device 1 is removed from the vehicle, and the cardless ETC vehicle-mounted device 1 is installed in a metal case in the same manner as the setup described above, and the cardless ETC vehicle-mounted device is installed from an external device for setup. The setup information of the vehicle information related to the newly attached vehicle is transmitted to 1. The control unit 15 erases the personal information in the nonvolatile memory 17 and stores the vehicle information included in the setup data in the nonvolatile memory 17. Next, when the personal information setup data is transmitted, the control unit 15 stores the personal information included in the setup data in the nonvolatile memory 17.

  As described above, the control unit 15 receives the setup data transmitted from the external device via the ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14, and the received setup data includes only vehicle information. When the cardless ETC on-board unit 1 is stolen, the personal information in the nonvolatile memory 17 is erased and the received vehicle information is stored in the nonvolatile memory 17. The stored personal information can be prevented from being used illegally.

  Further, the control unit 15 receives the setup data via the ETC antenna 12, the ETC radio unit 13 and the ETC communication control unit 14 that receive data for toll collection transmitted from the roadside antenna. There is no need to newly provide a means for receiving.

  Further, when it is determined that the setup data includes only personal information, the control unit 15 can store the received personal information in the nonvolatile memory 17.

  Further, since the vehicle information and personal information stored in the nonvolatile memory 17 are stored in an encrypted state, it is possible to prevent misuse such as illegally reading out and falsifying the information.

  The correspondence relationship between the configuration of the above-described embodiment and the configuration of the claims will be described. The ETC antenna 12, the ETC radio unit 13, and the ETC communication control unit 14 correspond to reception means, and the process of S102 in FIG. 3 corresponds to the determination means, the processing of S104, S106, and S108 in FIG. 3 corresponds to the control means, and the security module 16 corresponds to the encryption means.

  In addition, this invention is not limited to the said embodiment, Based on the meaning of this invention, it can implement with a various form.

  For example, in the above embodiment, the example in which the setup data of the vehicle information and the setup data of the personal information are separately transmitted from the external device to the cardless ETC on-board device 1 is shown. The setup data including both information and personal information may be transmitted to store the vehicle information and personal information in the nonvolatile memory 17. In this case, the control unit 15 determines whether or not both the vehicle information and the personal information are included in the setup data. If it is determined that both the vehicle information and the personal information are included in the setup data, it is included in the setup data. What is necessary is just to overwrite the vehicle information and personal information to be written in the non-volatile memory 17 simultaneously. As described above, since the vehicle information and the personal information included in the setup data are simultaneously overwritten in the nonvolatile memory 17, the personal information stored in the nonvolatile memory 17 cannot be read out. Even if the user is stolen, the personal information stored in the nonvolatile memory 17 can be prevented from being used illegally.

  Moreover, although the cardless ETC onboard equipment 1 in the said embodiment showed the example which receives setup data via the ETC antenna 12, it is not limited to the ETC antenna 12, For example, it differs from the ETC antenna 12. May be provided, and setup data transmitted from an external device may be received by the antenna. In addition, a terminal for connecting a cable to an external device may be provided, and setup data transmitted from the external device connected via a cable may be received via this terminal.

  Moreover, in the said embodiment, although the example which provided the ETC antenna 12 in the housing | casing of the cardless ETC onboard equipment 1 was shown, as a structure which provided the ETC antenna 12 separately from the main body of the cardless ETC onboard equipment 1 Good.

  In addition, the process of each step of the flowchart shown in FIG. 3 is grasped as a means for realizing each function, and the control unit 15 is configured by software as shown in the above-described embodiment. The configuration is not limited to hardware.

It is a figure which shows the block configuration of the cardless ETC onboard equipment which concerns on one Embodiment of this invention. It is explanatory drawing about the vehicle information and personal information in the case of re-registering only vehicle information. It is a flowchart which shows the radio | wireless communication process by a control part.

Explanation of symbols

1… Cardless ETC OBE, 11… Human machine interface,
12 ... ETC antenna, 13 ... ETC radio unit, 14 ... ETC communication control unit,
15 ... Control unit, 16 ... Security module, 17 ... Non-volatile memory,
18 ... Power supply part.

Claims (5)

Personal information necessary for identifying the individual who pays the fee together with vehicle information necessary for identifying the vehicle is stored as setup data in a storage medium, and installed on the roadside based on the setup data stored in the storage medium Cardless automatic toll collection on- board device that communicates with the roadside antenna that has been made,
Receiving means for receiving the setup data transmitted from the outside;
Determining means for determining information included in the setup data received by the receiving means;
When the determination means determines that only the vehicle information is included in the setup data, the personal information in the storage medium is erased, and the vehicle information received by the reception means is stored in the storage medium And an on-vehicle device for cardless automatic toll collection . The receiving means is adapted to receive data for toll collection transmitted from the roadside antenna,
Data determining means for determining whether the data received by the receiving means is setup data or data for toll collection;
The discriminating unit discriminates information included in the setup data received by the receiving unit when the data determining unit determines that the data received by the receiving unit is setup data. Item 2. An on- board device for cardless automatic fee collection according to item 1. The control means stores the personal information received by the receiving means in the storage medium when the determining means determines that only the personal information is included in the setup data. Or the vehicle-mounted device for automatic card- toll collection according to 2. When the determining means determines that both the vehicle information and the personal information are included in the setup data, the control means stores both the vehicle information and the personal information received by the receiving means in the storage medium. The cardless automatic fee collection on- vehicle device according to claim 1 or 2, wherein the cardless automatic fee collection is overwritten. The control means receives the vehicle received by the receiving means when the vehicle information and the personal information are already stored in the storage medium, and the determining means determines that only the vehicle information is included in the setup data. 3. The cardless automatic fee collection on-vehicle device according to claim 1, wherein re-registration of only information is disabled.

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