Vehicle-mounted charging medium compatible with digital RMB transaction, charging method and charging system

Abstract

The invention provides a vehicle-mounted charging medium compatible with digital RMB transactions, a charging method and a charging system. The system comprises a vehicle-mounted unit, a road side unit, a lane charging system and a settlement system. The vehicle-mounted unit is integrated with an ETC transaction module and a digital RMB transaction module and supports dual-mode transaction; on an ETC entrance lane, entrance information is received through a special short-range communication interface, and digital RMB non-inductive payment is completed on an exit lane through a TransferChannel instruction transmitted in a framing mode. The roadside digital RMB transaction module is realized in the form of a software development kit, a dynamic link library or a consumption security access module and the like, and supports online and offline transactions. And the lane toll collection system marks the transaction record as a digital RMB cash transaction record and sends the digital RMB cash transaction record to the settlement system for settlement processing. According to the invention, ETC lane digital RMB on-line / off-line non-inductive payment can be realized, the system is compatible with an existing charging system, and the system reconstruction cost is significantly reduced.

Description

Technical Field

[0001] The present invention relates to the field of highway toll collection technology, and in particular to a vehicle-mounted toll collection medium, toll collection method and system compatible with digital RMB transactions. Background Art

[0002] With the rapid development of expressway networks and the widespread adoption of ETC (Electronic Toll Collection) technology, expressway toll collection efficiency has significantly improved. The ETC system uses Dedicated Short-Range Communication (DSRC) technology to enable automatic interaction between vehicles and roadside equipment, allowing vehicles to pay tolls without stopping, significantly alleviating toll station congestion and improving traffic efficiency.

[0003] At the same time, with the rapid development of the digital economy, the People's Bank of China has launched the digital RMB (e-CNY). As a digital form of legal tender, it has the advantages of payment and settlement, no handling fees, and support for offline transactions, providing a new payment option for highway tolls.

[0004] At present, the application of digital RMB in the field of highway toll collection is mainly concentrated in manual lanes or mixed lanes, and transactions are completed by scanning code payment. This model is essentially an "account model + online transaction", relying on the user's mobile phone application to complete the payment, similar to third-party payment channels such as Alipay and WeChat Pay. However, this method still requires the vehicle to stop or slow down, and cannot fully utilize the advantages of the ETC system's "senseless passage". In addition, scan code payment relies on network connection, and transaction delays or failures may occur in areas with poor signals, affecting the user experience. At present, there is no mature solution or public technical information that can realize digital RMB senseless payment in ETC lanes. Summary of the Invention

[0005] In view of this, the embodiments of the present invention provide a vehicle-mounted charging medium, charging method and system that are compatible with digital RMB transactions, so as to eliminate or improve one or more defects existing in the existing technology, and solve the problems that the existing technology cannot support digital RMB contactless payment, relies on online transaction mode, and is incompatible with digital RMB offline payment.

[0006] On the one hand, the present invention provides an in-vehicle charging medium compatible with digital RMB transactions, including:

[0007] An on-board unit, comprising an ETC transaction module and a digital RMB transaction module, supporting dual modes of ETC and digital RMB transactions;

[0008] The onboard unit is configured to interact with the roadside device via a dedicated short-range communication interface at the ETC entrance lane, and receive and store the entrance information sent by the roadside device;

[0009] The on-board unit is configured to interact with the roadside device through the dedicated short-range communication interface in the ETC exit lane to complete the digital RMB transaction;

[0010] The on-board unit is pre-installed with digital RMB account wallet application files and keys for verification and settlement of digital RMB transactions.

[0011] In some embodiments of the present invention, the on-board unit is a two-chip structure, including an OBU host and a pluggable IC card, and the digital RMB transaction module is integrated into the IC card;

[0012] Alternatively, the on-board unit is a single-chip structure, and the digital RMB transaction module and ETC transaction module are integrated into the same chip.

[0013] In some embodiments of the present invention, when the vehicle-mounted unit is issued, a preset value is added to the media type field, and the preset value is used to identify the dedicated vehicle-mounted terminal version that supports digital RMB transactions.

[0014] In some embodiments of the present invention, the card version field in the card issuance basic data file stored in the on-board unit is set to the digital RMB transaction version.

[0015] On the other hand, the present invention also provides a charging method compatible with digital RMB transactions, the method comprising:

[0016] At the ETC entrance lane, interact with the on-board unit of any of the above-mentioned on-board charging media through a dedicated short-range communication interface to write the entrance information into the on-board unit;

[0017] At the ETC exit lane, the dedicated short-range communication interface interacts with the onboard unit to execute the digital RMB transaction process, including reading the media type field, card version field, and deduction method field preset in the onboard unit, interacting with the onboard unit through the TransferChannel instruction transmitted by frame, exchanging digital RMB coin string data and processing consumption instructions to generate transaction information;

[0018] The transaction information is sent to the lane toll collection system, and the built-in lane toll collection software marks the transaction record as a digital RMB cash transaction record and sends it to the settlement system.

[0019] In some embodiments of the present invention, the TransferChannel instruction transmitted via a frame is used to interact with the on-board unit, exchange digital RMB currency string data and process consumption instructions, including:

[0020] Read the first record of file 0019 and file 0002 in the onboard unit;

[0021] Select the EF04 file and read the specified byte data to obtain the billing information;

[0022] Initialize the digital RMB consumption instruction and write it into the 0019 file;

[0023] Execute digital RMB consumption instructions and complete currency string interaction;

[0024] Clear the billing information in the EF04 file.

[0025] In some embodiments of the present invention, when the execution of the digital RMB transaction process fails or is interrupted, the method further includes:

[0026] After detecting a digital RMB transaction failure signal, terminate the current digital RMB transaction process;

[0027] Read the ETC account information in the onboard unit through the dedicated short-range communication interface and execute the ETC transaction;

[0028] The ETC transaction records are sent to the settlement system for settlement.

[0029] In some embodiments of the present invention, when the roadside equipment is in an off-network state at the ETC exit lane, the method further includes:

[0030] Complete the digital RMB transaction through the TransferChannel instruction and generate an offline digital RMB transaction record;

[0031] After the network is restored, online updates will be performed based on the offline digital RMB transaction records.

[0032] On the other hand, the present invention also provides a charging system compatible with digital RMB transactions, the system comprising:

[0033] Any of the above-mentioned vehicle-mounted charging media;

[0034] A roadside unit, including a roadside digital RMB transaction module and roadside equipment, is used to execute the steps of any of the charging methods mentioned above that are compatible with digital RMB transactions;

[0035] A lane toll collection system, including a lane computer with built-in lane toll collection software, configured to receive transaction information sent by the roadside unit, mark digital RMB transaction records as digital RMB cash transaction records, and send the records to a settlement system;

[0036] The settlement system is used to perform clearing and settlement based on the marked transaction records.

[0037] In some embodiments of the present invention, the roadside digital RMB transaction module is in the form of a software development kit, integrated into the lane computer; or, in the form of a dynamic link library, for the lane computer to call; or, in the hardware form of a consumer security access module, physically connected to the roadside equipment.

[0038] The present invention provides a vehicle-mounted charging medium, charging method and system that are compatible with digital RMB transactions. The system includes: an on-board unit, a roadside unit, a lane charging system and a settlement system. The on-board unit integrates an ETC transaction module and a digital RMB transaction module to support dual-mode transactions; in the ETC entrance lane, the entry information is received through a dedicated short-range communication interface, and in the exit lane, the digital RMB contactless payment is completed through the TransferChannel instruction transmitted in a frame. The roadside digital RMB transaction module is implemented in the form of a software development kit, a dynamic link library or a consumer security access module, and supports online and offline transactions. The lane toll collection system marks the transaction record as a digital RMB cash transaction record and sends it to the settlement system for clearing and processing. The present invention can realize online / offline contactless payment of digital RMB in the ETC lane, is compatible with the existing toll collection system, and reduces the cost of transformation. At the same time, by adding a new medium type field to accurately distinguish the transaction type, statistical errors are avoided, and the traffic efficiency and financial reconciliation accuracy are improved.

[0039] Additional advantages, objects, and features of the present invention will be set forth in part in the following description and will become apparent to those skilled in the art upon examination of the following or may be learned from practice of the present invention. The objects and other advantages of the present invention may be realized and obtained by the structures particularly pointed out in the description and drawings.

[0040] Those skilled in the art will understand that the purposes and advantages that can be achieved by the present invention are not limited to the above specific descriptions, and the above and other purposes that can be achieved by the present invention will be more clearly understood based on the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The drawings described herein are used to provide a further understanding of the present invention, constitute a part of this application, and do not constitute a limitation of the present invention. In the drawings:

[0042] Figure 1This is a schematic diagram of the steps of a charging method compatible with digital RMB transactions in one embodiment of the present invention.

[0043] Figure 2 This is an application flow chart of a charging method compatible with digital RMB transactions in one embodiment of the present invention.

[0044] Figure 3 This is a timing diagram of the digital RMB transaction process in the ETC exit lane in one embodiment of the present invention.

[0045] Figure 4 This is a structural diagram of the charging system compatible with digital RMB transactions in one embodiment of the present invention. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and the accompanying drawings. Here, the exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0047] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, the accompanying drawings only show structures and / or processing steps closely related to the solutions according to the present invention, while other details that are not closely related to the present invention are omitted.

[0048] It should be emphasized that the term "include / comprises" when used herein refers to the existence of features, elements, steps or components, but does not exclude the existence or addition of one or more other features, elements, steps or components.

[0049] It should also be noted that, unless otherwise specified, the term "connection" herein may refer not only to a direct connection but also to an indirect connection involving an intermediate.

[0050] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the accompanying drawings, the same reference numerals represent the same or similar components, or the same or similar steps.

[0051] It should be emphasized here that the step marks mentioned below do not limit the order of the steps, but it should be understood that the steps can be executed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be executed simultaneously.

[0052] In order to solve the problem that the existing technology cannot support non-stop payment of digital RMB on highways, the present invention provides a vehicle-mounted charging medium compatible with digital RMB transactions, including: a vehicle-mounted unit.

[0053] Among them, the on-board unit includes an ETC transaction module and a digital RMB transaction module, supporting dual modes of ETC transaction and digital RMB transaction.

[0054] The on-board unit is configured to interact with the roadside equipment through a dedicated short-range communication interface in the ETC entrance lane, receive and store the entrance information sent by the roadside equipment, and interact with the roadside equipment through a dedicated short-range communication interface in the ETC exit lane to complete the digital RMB transaction.

[0055] The on-board unit is pre-installed with digital RMB account wallet application files and keys for verification and settlement of digital RMB transactions.

[0056] In some embodiments, the on-board unit is a two-piece structure, including an OBU host (on-board electronic tag) and a pluggable IC card (such as an ETC-specific CPU card), and the two are connected through a physical interface, such as the ISO 7816 standard contact connection, or the ISO / IEC14443 standard contactless connection.

[0057] The digital RMB transaction module includes a quasi-account wallet and keys, which are directly embedded in the chip of the IC card and coexist with the original ETC transaction module (ETC wallet).

[0058] In some embodiments, the on-board unit is a single-chip structure, integrating the ETC transaction module and the digital RMB transaction module into a single chip (such as an automotive-grade SOC). Compared with the two-chip structure, the single-chip structure does not have an external pluggable IC card.

[0059] For example, for the integration of the digital RMB transaction module, the digital RMB function can be embedded in the main chip in the form of a hardware security unit (eSE), sharing a dedicated short-range communication (DSRC) communication link with the ETC function, and dividing the logical channels through the firmware in the chip to dynamically switch the transaction mode.

[0060] In some embodiments, in order to realize digital RMB transactions, special marking is performed when the on-board unit is issued. Specifically, the values ​​of the existing "MediaType pass medium" field include: 1, 2, 3, and 9, where different values ​​represent different communication media, 1 represents OBU (only has ETC transaction function), 2 represents a composite pass card (CPC card), 3 represents a paper ticket (temporary pass medium), and 9 represents no pass medium. In this embodiment, a new value 6 is added to the "MediaType pass medium" field to identify the dedicated on-board terminal version that supports digital RMB transactions, that is, it can support ETC transactions and digital RMB transactions at the same time.

[0061] By adding a dedicated on-board terminal version as a type of passage medium, when vehicles pass through toll stations and toll gantries, the on-board unit simulates the function of a composite pass card, and there is no need to collect the card at the entrance lane. It is compatible with existing ETC / CPC lanes, saving users' passage time.

[0062] It should also be noted that adding values ​​to the "MediaType" field is only a field expansion rather than a reconstruction. It is compatible with existing systems and can achieve accurate statistics of special transactions.

[0063] In some embodiments, in order to realize the functions of simulated composite pass cards and digital RMB transactions, the on-board unit and the corresponding CPU card data format need to be revised to enable adaptive upgrades based on compatibility with the existing system.

[0064] Specifically, for the on-board unit system information file (EF01 file), the contract version field of the 10th byte needs to be changed from 0x51 to 0x52, indicating that the on-board unit supports the digital RMB transaction function.

[0065] The modified EF01 file is shown in Table 1.

[0066] Table 1 Description of vehicle-mounted unit system information file

[0067]

[0068] For the card issuance basic data file (0015 file) stored in the on-board unit, the card version field defined in the 10th byte needs to be set to 0x52, indicating that the digital RMB transaction version is supported, and the deduction method field defined in the 47th byte is set to 0xA1-digital RMB deduction, other-OBE-IC wallet deduction.

[0069] Table 2 Card issuance basic data file description

[0070]

[0071]

[0072] Based on the above-mentioned vehicle-mounted unit, the present invention also provides a charging method compatible with digital RMB transactions, such as Figure 1 As shown, the following steps S101 to S103 are included:

[0073] Step S101: At the ETC entrance lane, interact with the on-board unit through a dedicated short-range communication interface and write the entrance information into the on-board unit.

[0074] Step S102: In the ETC exit lane, interact with the on-board unit through a dedicated short-range communication interface to execute the digital RMB transaction process, including reading the media type field, card version field and deduction method field preset in the on-board unit, interacting with the on-board unit through the TransferChannel instruction transmitted by frame, exchanging digital RMB coin string data and processing consumption instructions to generate transaction information.

[0075] Step S103: Send the transaction information to the lane toll collection system. The built-in lane toll collection software will mark the transaction record as a digital RMB cash transaction record and send it to the settlement system.

[0076] like Figure 2 Shown is an application flowchart of the charging method compatible with digital RMB transactions.

[0077] In some embodiments, before executing a charging method compatible with digital RMB transactions, a digital RMB account is registered with a third party or ETC issuer and recharged.

[0078] When the on-board unit is issued, two initialization operations are required: ETC system initialization and digital RMB system initialization. Among them, ETC system initialization usually includes writing the OBU number, vehicle information, ETC key, etc. Digital RMB initialization usually includes loading account wallet files, digital RMB transaction keys, binding user digital RMB account identifiers, etc. When the on-board unit leaves the factory, the initial modes of the ETC key and digital RMB transaction key have been preset in the basic data file for card issuance.

[0079] In step S101, the vehicle enters the ETC entrance lane, and the roadside equipment wakes up the on-board unit through DSRC broadcast. The roadside unit writes the entrance information (toll station number, entrance timestamp, lane number, etc.) into the EF04 file of the on-board unit.

[0080] In step S102, the vehicle enters the ETC exit lane, and the roadside equipment reads the media type field, card version field, and deduction method field preset in the on-board unit through DSRC. According to the read media type field, the digital RMB transaction process is executed, and the TransferChannel instruction transmitted through the frame interacts with the on-board unit to exchange the digital RMB coin string data and process the consumption instruction to generate transaction information.

[0081] In some embodiments, as Figure 3 Shown is a timing diagram of the digital RMB transaction process in the ETC exit lane.

[0082] The roadside unit and the vehicle-mounted unit complete transaction initialization through BST (Beacon Service Table) or VST (Vendor Specific Table), pre-read the vehicle-mounted unit EF01 file, the 0015 file and the 0019 file (transaction counter) in the card issuance basic data file.

[0083] The roadside unit reads vehicle information from the onboard unit through the Getsecure command and performs vehicle information authentication.

[0084] The RSU uses the TransferChannel command to perform the following operations on the OMU in sequence:

[0085] 1) Read the 0002 file (key index), 0015 file and 0019 file stored in the vehicle unit.

[0086] 2) Read the billing information in the EF04 file stored in the vehicle-mounted unit. Specifically, read bytes 315-405, that is, read 91 bytes at an offset of 314 bytes.

[0087] 3) Initialize the digital currency consumption command and write it to file 0019, updating the toll booth information. For example, the command format includes a coin string, a random number, and a MAC. The coin string is the encrypted payment credential for the digital RMB; the random number is used to prevent replay; and the MAC represents a message authentication code, ensuring integrity.

[0088] 4) Execute digital currency consumption instructions to complete the currency string interaction.

[0089] 5) Clear the billing information in the EF04 file.

[0090] 6) Release DSRC link resources after the transaction is successful.

[0091] In step S103, the roadside equipment sends the transaction information to the lane toll collection system. The lane toll collection software installed in the lane computer in the lane toll collection system marks the transaction record as a digital RMB cash transaction record, and sends the digital RMB cash transaction record to the settlement system for settlement.

[0092] In some embodiments, when the execution of the digital RMB transaction process fails or is interrupted:

[0093] After the roadside equipment detects the digital RMB transaction failure signal, it terminates the current digital RMB transaction process; reads the ETC account information in the on-board unit through the DSRC interface and executes the ETC transaction; after the transaction is completed, the ETC transaction record is sent to the settlement system for settlement.

[0094] In some embodiments, when the roadside equipment is disconnected in the ETC exit lane:

[0095] The roadside equipment completes the digital RMB transaction through the TransferChannel command and generates offline digital RMB transaction records; after the network is restored, the offline digital RMB transaction records are updated online.

[0096] Corresponding to the above-mentioned charging method compatible with digital RMB transactions, the present invention also provides a charging system compatible with digital RMB transactions, including: a vehicle-mounted charging medium (vehicle-mounted unit), a roadside unit and a lane charging system based on the above-mentioned settings. Among them, the roadside unit includes a roadside digital RMB transaction module and roadside equipment, which are used to execute the steps of the above-mentioned charging method compatible with digital RMB transactions. The lane toll collection system includes a lane computer with built-in lane toll collection software, which is used to receive transaction information sent by the roadside unit, mark the digital RMB transaction records as digital RMB cash transaction records, and send the marked transaction records to the settlement system. The settlement system performs subsequent settlement processing.

[0097] In some embodiments, the roadside digital RMB transaction module is in the form of a software development kit (SDK) and integrated into the lane computer; or in the form of a DLL dynamic link library for the lane computer to call; or in the hardware form of a consumer security access module (PSAM) and physically connected to the roadside equipment.

[0098] Corresponding to the above method, the present invention also provides an electronic device, which includes a computer device, the computer device includes a processor and a memory, the memory stores computer instructions, and the processor is used to execute the computer instructions stored in the memory. When the computer instructions are executed by the processor, the electronic device implements the steps of the method described above.

[0099] An embodiment of the present invention further provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the aforementioned edge computing server deployment method. The computer-readable storage medium may be a tangible storage medium, such as a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a floppy disk, a hard disk, a removable storage disk, a CD-ROM, or any other form of storage medium known in the art.

[0100] It should be understood by those skilled in the art that the various exemplary components, systems and methods described in conjunction with the embodiments disclosed herein can be implemented in hardware, software or a combination of the two. Whether it is specifically performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present invention are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link via a data signal carried in a carrier.

[0101] It should be understood that the present invention is not limited to the specific configurations and processes described above and illustrated in the figures. For the sake of brevity, a detailed description of known methods is omitted. In the above embodiments, several specific steps are described and illustrated as examples. However, the method of the present invention is not limited to the specific steps described and illustrated. Those skilled in the art may make various changes, modifications, and additions, or change the order of the steps after understanding the spirit of the present invention.

[0102] In the present invention, features described and / or illustrated for one embodiment may be used in the same or similar manner in one or more other embodiments, and / or combined with or replace features of other embodiments.

[0103] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations to the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A vehicle-mounted charging medium compatible with digital RMB transactions, characterized by: include: An on-board unit, comprising an ETC transaction module and a digital RMB transaction module, supporting dual modes of ETC and digital RMB transactions; The onboard unit is configured to interact with the roadside device via a dedicated short-range communication interface at the ETC entrance lane, and receive and store the entrance information sent by the roadside device; The on-board unit is configured to interact with the roadside device through the dedicated short-range communication interface in the ETC exit lane to complete the digital RMB transaction; The on-board unit is pre-installed with digital RMB account wallet application files and keys for verification and settlement of digital RMB transactions.

2. The vehicle-mounted charging medium compatible with digital RMB transactions according to claim 1 is characterized in that: The on-board unit is a two-chip structure, including an OBU host and a pluggable IC card, and the digital RMB transaction module is integrated into the IC card; Alternatively, the on-board unit is a single-chip structure, and the digital RMB transaction module and ETC transaction module are integrated into the same chip.

3. The vehicle-mounted charging medium compatible with digital RMB transactions according to claim 1 is characterized in that: When the vehicle-mounted unit is issued, a preset value is added to the media type field. The preset value is used to identify the dedicated vehicle-mounted terminal version that supports digital RMB transactions.

4. The vehicle-mounted charging medium compatible with digital RMB transactions according to claim 1 is characterized in that: The card version field in the card issuance basic data file stored in the on-board unit is set to the digital RMB transaction version.

5. A charging method compatible with digital RMB transactions, characterized in that: The method comprises: At an ETC entrance lane, interacting with an on-board unit of the vehicle-mounted toll collection medium according to any one of claims 1 to 4 through a dedicated short-range communication interface, and writing the entrance information into the on-board unit; At the ETC exit lane, the dedicated short-range communication interface interacts with the onboard unit to execute the digital RMB transaction process, including reading the media type field, card version field, and deduction method field preset in the onboard unit, interacting with the onboard unit through the TransferChannel instruction transmitted by frame, exchanging digital RMB coin string data and processing consumption instructions to generate transaction information; The transaction information is sent to the lane toll collection system, and the built-in lane toll collection software marks the transaction record as a digital RMB cash transaction record and sends it to the settlement system.

6. The charging method for digital RMB transactions according to claim 5, characterized in that: Interact with the on-board unit through the TransferChannel instruction transmitted in frames, exchange digital RMB currency string data and process consumption instructions, including: Read the 0002 file, the 0015 file and the 0019 file in the vehicle-mounted unit; Select the EF04 file and read the specified byte data to obtain the billing information; Initialize the digital RMB consumption instruction and write it into the 0019 file; Execute digital RMB consumption instructions and complete currency string interaction; Clear the billing information in the EF04 file.

7. The charging method for digital RMB transactions according to claim 5, characterized in that: When the execution of the digital RMB transaction process fails or is interrupted, the method further includes: After detecting a digital RMB transaction failure signal, terminate the current digital RMB transaction process; Read the ETC account information in the onboard unit through the dedicated short-range communication interface and execute the ETC transaction; The ETC transaction records are sent to the settlement system for settlement.

8. The charging method for digital RMB transactions according to claim 5, characterized in that: When the roadside equipment is in an off-network state in the ETC exit lane, the method further includes: Complete the digital RMB transaction through the TransferChannel instruction and generate an offline digital RMB transaction record; After the network is restored, online updates will be performed based on the offline digital RMB transaction records.

9. A charging system compatible with digital RMB transactions, characterized by: The system comprises: The vehicle-mounted charging medium according to any one of claims 1 to 4; A roadside unit, comprising a roadside digital RMB transaction module and roadside equipment, configured to execute the steps of the charging method compatible with digital RMB transactions as described in any one of claims 5 to 8; A lane toll collection system, including a lane computer with built-in lane toll collection software, configured to receive transaction information sent by the roadside unit, mark digital RMB transaction records as digital RMB cash transaction records, and send the records to a settlement system; The settlement system is used to perform clearing and settlement based on the marked transaction records.

10. The charging system compatible with digital RMB transactions according to claim 9 is characterized in that: The roadside digital RMB transaction module is in the form of a software development kit, integrated into the lane computer; or, in the form of a dynamic link library, for the lane computer to call; or, in the hardware form of a consumer security access module, physically connected to the roadside equipment.

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