On-vehicle device, information processing system, and information processing method

Abstract

To provide an on-vehicle device that realizes utilization of ETC having been provided conventionally and enables other payments as well as an information processing system in which the on-vehicle device is used and an information processing method in which the on-vehicle device is used.SOLUTION: An on-vehicle device 100 includes: a first communication unit 10 that transmits first payment specific information to an ETC road-side machine 600; an encryption unit 50 that encrypts second payment specific information to generate encrypted payment specific information; and a second communication unit 20 that transmits the encrypted payment specific information.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to an on-board device that transmits information to an ETC roadside device, an information processing system including such an on-board device, and an information processing method using such an on-board device. [Background technology]

[0002] Conventionally, an electronic toll collection system (ETC) has been used, in which a vehicle equipped with an ETC on-board unit with an inserted ETC card passes through ETC roadside units installed at entrance and exit toll gates, and a toll between the entrance and exit toll gates is determined at the exit toll gate by referring to a toll table containing a preset toll for the period between the entrance and exit toll gates. For example, Patent Document 1 discloses a central toll collection device that includes a toll gate side communication unit that receives, from an entrance toll gate device, entrance toll gate information including entrance toll gate entry date and time information indicating the date and time when the vehicle entered the entrance toll gate, entrance toll gate identification information, and the ETC card ID of the ETC card inserted in the vehicle's on-board unit, distributes a toll table to an exit toll gate device, and receives, from the exit toll gate device, exit toll gate information including exit toll gate entry date and time information indicating the date and time when the vehicle entered the exit toll gate, exit toll gate identification information, and the ETC card ID. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-081044 Summary of the Invention [Problem to be solved by the invention]

[0004] The present invention provides an on-board device that enables the use of ETC, which has been provided in the past, while also enabling other payment methods, an information processing system using the on-board device, and an information processing method using the on-board device. [Means for solving the problem]

[0005] [Concept 1] The vehicle-mounted device according to the present invention comprises: a first communication unit that transmits first payment specification information to the ETC roadside device; an encryption unit that encrypts the second payment specifying information to generate encrypted payment specifying information; A second communication unit that transmits the cryptographic payment specification information; may also be provided.

[0006] [Concept 2] In the on-board device according to Concept 1, The encrypted payment specification information may be generated by encrypting second payment specification information using at least vehicle-mounted device identification information.

[0007] [Concept 3] In the on-board device according to concept 1 or 2, The second communication unit may transmit vehicle-mounted device identification information and the cryptographic payment specification information.

[0008] [Concept 4] In the on-board device according to any one of concepts 1 to 3, The second communication unit may transmit the time and the cryptographic payment identification information.

[0009] [Concept 5] In the on-board device according to any one of concepts 1 to 4, The first payment specification information and the second payment specification information may include the same information.

[0010] [Concept 6] In the on-board device according to any one of concepts 1 to 5, The second communication unit may transmit authentication information in addition to the cryptographic payment identification information.

[0011] [Concept 7] The information processing system according to the present invention comprises: an on-board device according to any one of claims 1 to 6; a charging device that receives the cryptographic payment specification information and associates fee information with the cryptographic payment specification information; may also be provided.

[0012] [Concept 8] The information processing system according to Concept 7 is a decryption device having a decryption unit that receives the encrypted payment specification information from the charging device and decrypts the encrypted payment specification information; The charging organization that manages the charging device and the management organization that manages the decoding device may be different organizations.

[0013] [Concept 9] In an information processing system according to Concept 7 or 8, The charging device may have a charging function unit that associates fee calculation information with the cryptographic payment identification information, and a fee calculation unit that calculates a fee from the fee calculation information.

[0014] [Concept 10] An information processing system according to any one of concepts 7 to 9, a decryption device having a decryption unit that receives the encrypted payment specification information from the charging device and decrypts the encrypted payment specification information; The charging device separates the encrypted payment specification information from the fee information and transmits the separated information to the decryption device; The information processing system may include a payment device having a payment unit that associates the second payment specification information decrypted by the decryption device with the fee information.

[0015] [Concept 11] 11. An information processing system according to any one of claims 7 to 10, The charging device may associate fee information for one or more of wireless power supply, mileage taxation, area pricing, wired charging, and parking with the cryptographic payment identification information.

[0016] [Concept 12] 12. An information processing system according to any one of claims 7 to 11, In the information processing system according to the present invention, The charging device may associate fee information for two or more of contactless power supply, mileage taxation, area pricing, wired charging, and parking with the cryptographic payment identification information.

[0017] [Concept 13] The information processing method according to the present invention comprises: An information processing method by an on-board device that transmits first payment specification information to an ETC roadside device, encrypting the second payment specifying information by an encryption unit to generate encrypted payment specifying information; a step of transmitting the cryptographic payment specification information by a second communication unit; may also be provided. [Effects of the Invention]

[0018] According to the present invention, there is provided an on-board device that enables the use of ETC, which has been provided conventionally, while also enabling other payment methods, an information processing system using the on-board device, and an information processing method using the on-board device. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a block diagram showing a configuration of an information processing system according to an embodiment of the present invention; [Figure 2] FIG. 2 is a diagram showing an example of an information flow in an information processing system according to an embodiment of the present invention. [Figure 3] 1 is a diagram showing a mode in which an in-vehicle device according to an embodiment of the present invention is used for contactless power supply, mileage taxation, and area pricing. [Figure 4] 1 is a diagram showing a manner in which an in-vehicle device according to an embodiment of the present invention communicates with a contactless power supply charging device, a travel tax charging device, and an area pricing charging device. DETAILED DESCRIPTION OF THE INVENTION

[0020] ETC cards have a user identification function. Specifically, an ETC card ID is stored in the ETC card, and when the ETC card is inserted into the in-vehicle unit 100, the ETC card ID is cached in the memory of the in-vehicle unit 100. The ETC card ID is uplinked at the exit roadside unit, and a bill is sent from the credit card company to the ETC card ID. ETC cards also have an electronic toll ticket function. Specifically, the entrance information is written to the ETC card via the in-vehicle unit 100 at the entrance roadside unit, and the entrance information is uplinked at the exit roadside unit, and the toll is calculated using a toll table.

[0021] As shown in FIG. 1, the information processing system of this embodiment includes, as an example, an on-board device 100, which is an ETC on-board device or the like installed in a vehicle and capable of communicating with an ETC roadside device 600, a charging device 200, a decryption device 300, and a settlement device 400. One or more on-board devices 100 may be installed in a vehicle. The charging device 200 is a device for charging. The on-board device 100 of this embodiment is capable of communicating with multiple ETC roadside devices 600 and multiple charging devices 200. The settlement device 400 is, as an example, installed in a financial institution such as a credit card company that manages ETC cards.

[0022] The vehicle-mounted device 100 of this embodiment may have a first communication unit 10 that transmits first payment identification information such as an ETC card ID to the ETC roadside device 600, an encryption unit 50 that encrypts second payment identification information such as the ETC card ID to generate encrypted payment identification information, and a second communication unit 20 that transmits the encrypted payment identification information to a device other than the ETC roadside device 600 (e.g., the billing device 200). The first communication unit 10 may be capable of transmitting and receiving information to and from the ETC roadside device 600, and the second communication unit 20 may be capable of transmitting and receiving information to and from a device other than the ETC roadside device 600 (e.g., the billing device 200).

[0023] The ETC roadside device 600 is a device used to make payments when a vehicle passes through an ETC gate. Because the ETC roadside device 600 is managed by a predetermined organization, such as a road company, a configuration in which first payment identification information, such as an ETC card ID, is not encrypted can be adopted. On the other hand, devices other than the ETC roadside device 600 may not be managed by a specific organization, such as a road company, and therefore require careful handling from a security perspective. For this reason, in this embodiment, the encryption unit 50 encrypts second payment identification information, such as an ETC card ID, to generate encrypted payment identification information, which is then transmitted to a device other than the ETC roadside device 600. When this configuration is adopted, an ETC card can be used to enable a vehicle to pass through an ETC gate, and the ETC card can also be used to realize various payments other than vehicle passage through an ETC gate, thereby providing extremely convenient services. The first communication unit 10 and the second communication unit 20 may be separate communication units, or the same communication unit may serve both functions.

[0024] The vehicle-mounted device 100 has a SAM (Secure Application Module) (see Figure 2), which may function as an encryption unit 50 to encrypt the encrypted payment specification information. Note that an ETC card is not required, and information corresponding to the ETC card ID may be stored in the storage unit 60 of the vehicle-mounted device 100, and the information stored in the vehicle-mounted device 100 (typically, payment specification information associated with a credit card) may be used instead of the ETC card ID.

[0025] The encrypted payment specification information may be generated by encrypting the second payment specification information using at least the vehicle-mounted device identification information. For example, an encryption key may be generated using the vehicle-mounted device identification information, and then the application information may be encrypted using the encryption key to generate a token, which is an example of encrypted payment specification information (see FIG. 2). In this case, the decryption device 300 (described later) may generate a decryption key using a unique key pre-stored in the decryption device 300 and the vehicle-mounted device identification information, and then decrypt the token. The application information may include vehicle information, ETC card ID, etc. In this case, the decryption device 300 obtains information such as the vehicle information and ETC card ID by decrypting the token. Note that, when an encryption key is generated using the vehicle-mounted device identification information, higher security can be expected. The second payment specification information may be application information that includes not only the ETC card ID but also vehicle information. In addition to encrypting the second payment specification information, authentication information such as an authenticator (MAC: Message Authentication Code) for tamper detection may be added to the second payment specification information. If this embodiment is adopted, when decrypting using the decryption device 300, it is possible to verify that the received second payment specification information has not been tampered with along the way by generating a separate authenticator in the decryption device 300 and verifying that it is identical to the authenticator that was assigned.

[0026] The second communication unit 20 may transmit the vehicle-mounted device identification information and cryptographic payment specification information such as a token. Adopting such an embodiment is advantageous in that the decryption device 300 can generate a decryption key using the unique key stored in the decryption device 300 and the received vehicle-mounted device identification information. The second communication unit 20 may also transmit authentication information together with the cryptographic payment specification information.

[0027] The second communication unit 20 may transmit cryptographic payment identification information such as time and tokens. By using time in this manner, if an unusual time is used (e.g., if a time period exceeding a predetermined threshold has elapsed), it can be determined that there is a high possibility of fraud, such as tampering, and the information cannot be used, thereby achieving higher security. The "time period exceeding the predetermined threshold" can take various forms, but an appropriate length of time, such as one to two hours, can be set as an example. Even when transmitting time, a replay attack (a fraudulent use of information received between the sender and the receiver) in which a fraudster replaces only the time may be possible. To prevent this, the time may be input as a parameter when generating the authenticator described above and used for its function. In this manner, if the time is tampered with, the authenticator generated separately by the decryption device 300 and the assigned authenticator will no longer be identical, making it possible to detect time tampering.

[0028] As shown in FIG. 2, the second communication unit 20 may associate cryptographic payment specification information, such as vehicle-mounted device identification information, time, and tokens, with the information and transmit it to a charging device 200, which generates fee calculation information. The charging device 200 has a charging function unit 210, which may associate the fee calculation information with cryptographic payment specification information, such as vehicle-mounted device identification information, time, and tokens, to generate billing information. Note that information related to fees, such as fee calculation information and the fee itself, is a concept included in fee information. Fee calculation information may be, for example, the amount of charge in the case of contactless power supply, the mileage in the case of mileage tax, information on driving within a specified area in the case of area pricing, information based on the amount of charge in the case of wired charging, or information based on the parking time in the case of parking.

[0029] The first payment specification information transmitted by the first communication unit 10 and the second payment specification information encrypted to form the encrypted payment specification information may contain the same information. For example, both may contain an ETC card ID. For example, both the first payment specification information and the second payment specification information may be an ETC card ID. If the first payment specification information and the second payment specification information contain the same payment specification information for ETC payments, such as an ETC card ID, the payment specification information may be transmitted to the ETC roadside device 600 without being encrypted. On the other hand, when transmitting the payment specification information to a device other than the ETC roadside device 600 (e.g., the billing device 200), the payment specification information may be transmitted as encrypted encrypted payment specification information. This configuration allows the same payment specification information to be used, but encrypted as needed to ensure security. This is also beneficial for users of the on-board device 100, as it eliminates the need to install a separate on-board device for ETC.

[0030] 2, the charging device 200 may be configured so that the fee calculation information is associated with a token or the like in the charging function unit 210, and transmitted from the charging function unit 210 to the fee calculation unit 220, and the fee is calculated from the fee calculation information in the fee calculation unit 220. The institution that manages the charging function unit 210 and the institution that manages the fee calculation unit 220 may be the same institution or different institutions.

[0031] The information processing system may include a decryption device 300 including a decryption unit 310 that receives the encrypted payment specification information from the billing device 200 and decrypts the encrypted payment specification information. The decryption device 300 may be provided at a specific third-party institution, such as a payment agency. The decryption device 300, managed by the specific third-party institution, can generate a decryption key for decryption using a unique key. This decryption key can then be used to decrypt application information, including vehicle information, ETC card ID, and the like. By allowing only a specific third-party institution, such as a payment agency, to decrypt the encrypted payment specification information, the handling of the encrypted payment specification information can be ensured only by a trusted institution. As described above, the decryption device 300 may generate a decryption key using the unique key and the received vehicle-mounted device identification information, but this is not limited to this configuration. For example, the vehicle-mounted device 100 may generate the encrypted payment specification information from the second payment specification information according to a predetermined algorithm, and the decryption device 300 may decrypt the second payment specification information from the encrypted payment specification information using a predetermined decryption key.

[0032] The charging institution that manages the charging device 200 having the charging function unit 210 and the management institution that manages the decryption device 300 may be different institutions. As an example, the above-mentioned settlement agency manages the decryption device 300, but the charging device 200 may be managed by the institution that performs charging.

[0033] As shown in Figure 2, the fee calculation unit 220 of the billing device 200 may separate the encrypted payment specification information from the fee calculation information and transmit it to the decryption device 300. Since the encrypted payment specification information will be associated with the fee in the payment device 400 described below, when separating the encrypted payment specification information from the fee calculation information, association information associating the encrypted payment specification information with the fee calculation information may be added, or vehicle information or vehicle-mounted device identification information may be used as the association information. Note that the second payment specification information obtained by decrypting the encrypted payment specification information may be associated with the fee in the payment device 400.

[0034] The payment device 400 may include a payment unit 410 that associates second payment specification information, such as an ETC card ID, decrypted by the decryption device 300 with a fee (amount claimed) generated from the fee calculation information in the charging device 200. As an example, as shown in FIG. 2 , vehicle information included in the application information decrypted by the decryption device 300 may be transmitted to the charging device 200, and the second payment specification information decrypted by the decryption device 300 may be associated with the fee (amount claimed) generated from the fee calculation information in the charging device 200 using this vehicle information. Specifically, vehicle information or information associated with the vehicle information or information derived from the vehicle information may be transmitted from the decryption device 300 to the payment device 400 as the second payment specification information, and the vehicle information or information associated with the vehicle information or information derived from the vehicle information transmitted from the decryption device 300 to the charging device 200 may be transmitted from the charging device 200 to the payment device 400 together with the fee (amount claimed). Then, using these in the payment device 400, the second payment specification information such as the ETC card ID decrypted by the decryption device 300 may be associated with the fee (billing amount) generated from the fee calculation information in the charging device 200. In this case, the fee (billing amount) may be associated with payment identification information such as the credit card number associated with the ETC card ID.

[0035] As another example, the decryption device 300 may transmit the on-board unit identification information or information associated with the on-board unit identification information or information derived from the on-board unit identification information together with the second payment specification information to the payment device 400, and the on-board unit identification information or information associated with the on-board unit identification information or information derived from the on-board unit identification information may be transmitted from the billing device 200 to the payment device 400 together with the fee. The payment device 400 may then use these to associate the second payment specification information decrypted by the decryption device 300 with the fee (billing amount) generated from the fee calculation information in the billing device 200. In this case, the fee (billing amount) may be associated with payment specification information such as a credit card number associated with the ETC card ID, as described above.

[0036] The charging function unit 210 may associate fee information, such as fee calculation information for one or more of contactless power supply, mileage taxation, area pricing, wired charging, and parking, with the encrypted payment specification information (see Figures 3 and 4). As shown in Figure 3, information transmitted from the ETC roadside device 600 may also be passed through the fee calculation unit 220 and settled by the payment device 400.

[0037] 3 and 4, a plurality of contactless power charging devices 200a that charge for contactless power feeding, a plurality of mileage tax charging devices 200b that charge for mileage tax, and a plurality of area pricing charging devices 200c that charge for area pricing may be provided. Specifically, the charging function unit 210a of the contactless power feeding charging device 200a associates fee calculation information for contactless power feeding with cryptographic payment identification information such as a token and transmits the associated information to the contactless power feeding fee calculation unit 220a, which then calculates the contactless power feeding fee. The charging function unit 210b of the mileage tax charging device 200b associates fee calculation information for mileage tax with cryptographic payment identification information such as a token and transmits the associated information to the mileage tax fee calculation unit 220b, which then calculates the mileage tax fee. The charging function unit 210c of the area pricing charging device 200c associates fee calculation information related to area pricing with cryptographic payment identification information such as a token and transmits the information to the area pricing fee calculation unit 220c, which then calculates the area pricing fee. As an example, the contactless power supply charging device 200a may be managed by an electric power company, and the mileage taxing charging device 200b and the area pricing charging device 200c may be managed by a local government. However, this is not limited to this, and various charging devices 200, such as the contactless power supply charging device 200a, the mileage taxing charging device 200b, and the area pricing charging device 200c, may each be managed by a different organization.

[0038] The first communication unit 10, the second communication unit 20, the encryption unit 50, etc. may be realized by a single unit (control unit) or by different units. The functions of multiple "units" may be integrated, and for example, the functions of the first communication unit 10 and the second communication unit 20 may be realized by a single unit. Furthermore, the first communication unit 10, the second communication unit 20, the encryption unit 50, etc. may be realized by a circuit configuration.

[0039] The above description of the embodiment and the disclosure of the drawings are merely examples for explaining the invention described in the claims, and the invention described in the claims is not limited by the above description of the embodiment or the disclosure of the drawings. [Explanation of symbols]

[0040] 10 First Communications Department 20 Second Communications Department 50 Encryption section 100 Onboard equipment 200 Charging Device 210 Billing Function Unit 220 Fee Calculation Department 300 Decryption Device 310 Decoding unit 400 Payment Device 410 Payment Department 600 ETC roadside machine

Claims

1. a first communication unit that transmits first payment specification information to the ETC roadside device; an encryption unit that encrypts the second payment specifying information to generate encrypted payment specifying information; A second communication unit that transmits the cryptographic payment specification information; An on-board device comprising:

2. The vehicle-mounted device according to claim 1 , wherein the encrypted payment specification information is generated by encrypting the second payment specification information using at least the vehicle-mounted device identification information.

3. The vehicle-mounted device according to claim 1 or 2, wherein the second communication unit transmits vehicle-mounted device identification information and the cryptographic payment specification information.

4. The vehicle-mounted device according to claim 1 or 2, wherein the second communication unit transmits a time and the cryptographic payment specification information.

5. The vehicle-mounted device according to claim 1 , wherein the first payment specification information and the second payment specification information include the same information.

6. The vehicle-mounted device according to claim 1 or 2, wherein the second communication unit transmits authentication information in addition to the cryptographic payment specification information.

7. The vehicle-mounted device according to claim 1 or 2; a charging device that receives the cryptographic payment specification information and associates fee information with the cryptographic payment specification information; An information processing system comprising:

8. a decryption device having a decryption unit that receives the encrypted payment specification information from the charging device and decrypts the encrypted payment specification information; 8. The information processing system according to claim 7, wherein a billing organization that manages said billing device and a management organization that manages said decoding device are different organizations.

9. The information processing system according to claim 7, wherein the charging device has a charging function unit that associates fee calculation information with the cryptographic payment specification information, and a fee calculation unit that calculates a fee from the fee calculation information.

10. a decryption device having a decryption unit that receives the encrypted payment specification information from the charging device and decrypts the encrypted payment specification information; The charging device separates the encrypted payment specification information from the fee information and transmits the separated information to the decryption device; The information processing system according to claim 7 , further comprising a payment device having a payment unit that associates the second payment specification information decrypted by the decryption device with the fee information.

11. The information processing system according to claim 7 , wherein the charging device associates fee information for one or more of contactless power supply, mileage taxation, area pricing, wired charging, and parking with the cryptographic payment specification information.

12. The information processing system according to claim 7 , wherein the charging device associates fee information for two or more of contactless power supply, mileage taxation, area pricing, wired charging, and parking with the cryptographic payment specification information.

13. An information processing method by an in-vehicle device that transmits first payment specification information to an ETC roadside device, encrypting the second payment specifying information by an encryption unit to generate encrypted payment specifying information; a step of transmitting the cryptographic payment specification information by a second communication unit; An information processing method comprising:

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