Road free flow charging method and system compatible with digital RMB

Abstract

The invention provides a road free flow toll collection method and system compatible with digital RMB, and the method comprises the following steps: obtaining a vehicle-mounted equipment signal in real time based on preset portal equipment on a road, completing the handshake authentication based on the vehicle-mounted equipment signal, and after the handshake authentication is completed, carrying out the toll collection. Analyzing the vehicle-mounted equipment signal based on preset portal equipment on a road to obtain vehicle information; determining a charging amount based on path information in the vehicle information; based on OBU version information, IC card version information or OBU equipment type information in the vehicle information, whether the OBU has a digital RMB transaction function is identified, if yes, a digital RMB transaction instruction is sent, and the digital RMB transaction is completed; if not, a common ETC transaction instruction is sent, and a common ETC transaction is completed. The scheme has a digital RMB transaction function, so that the digital RMB transaction can be completed, and the transaction convenience is improved.

Description

Technical Field

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

[0002] With the development of economy and technology, the expressway network basically covers all provinces and cities, becoming one of the important ways for people to travel by car. At the same time, the popularization of Electronic Toll Collection (ETC) technology has enabled expressways to realize automatic toll collection without stopping, greatly improving traffic efficiency.

[0003] The main implementation method of existing digital RMB highway toll collection is to scan the code and pay after parking in the manual lane or mixed lane, that is, "account mode" + "online transaction". At present, there is no application mode of using digital RMB (e-CNY) for payment in the ETC non-stop traffic state, and the existing parking digital RMB transaction is less convenient. Summary of the invention

[0004] In view of this, an embodiment of the present invention provides a highway free-flow charging method compatible with digital RMB to eliminate or improve one or more defects existing in the prior art.

[0005] One aspect of the present invention provides a highway free-flow charging method compatible with digital RMB, the method comprising the following steps:

[0006] Acquire vehicle-mounted device signals in real time based on a preset gantry device on the road, complete handshake authentication based on the vehicle-mounted device signals, and after completing handshake authentication, parse the vehicle-mounted device signals based on the preset gantry device on the road to acquire vehicle information;

[0007] Determining a toll amount based on the path information in the vehicle information;

[0008] Based on the OBU version information, IC card version information or OBU device type information in the vehicle information, identify whether the OBU has the digital RMB transaction function. If so, send a digital RMB transaction instruction to complete the digital RMB transaction; if not, send an ordinary ETC transaction instruction to complete the ordinary ETC transaction.

[0009] By adopting the above scheme, this scheme can first interact directly with the vehicle's on-board equipment through the gantry, and further identify whether the OBU has the digital RMB transaction function through the OBU version information, IC card version information or OBU device type information. If it has the digital RMB transaction function, it can complete the digital RMB transaction and improve the transaction convenience.

[0010] In some embodiments of the present invention, in the step of determining the charging amount based on the path information in the vehicle information, a regional charging method, a segmented charging method or a segmented continuous charging method is adopted.

[0011] In some embodiments of the present invention, if a regional charging method is adopted, the gantry equipment includes an entrance gantry, an identification gantry and an exit gantry. In the step of determining the charging amount based on the path information in the vehicle information, the starting position of the path is determined based on the vehicle-mounted equipment signal obtained by the entrance gantry, the passing position of the path is determined based on the vehicle-mounted equipment signal obtained by the identification gantry, and the ending position of the path is determined based on the vehicle-mounted equipment signal obtained by the exit gantry. The driving path is determined based on the starting position, passing position and ending position of the path, and the charging amount is determined based on the driving path.

[0012] In some embodiments of the present invention, if a regional charging method is adopted, the identification gantry includes an intermediate gantry and a critical gantry, and the critical gantry is adjacent to the exit gantry. In the step of determining the charging amount based on the path information in the vehicle information, when a vehicle-mounted device signal is obtained based on the critical gantry, the current driving path of the vehicle is obtained, and multiple estimated driving paths are obtained based on the feasible path between the critical gantry and the exit gantry, and the estimated charging amount for each estimated driving path is calculated.

[0013] In some embodiments of the present invention, if a regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when a vehicle-mounted equipment signal is obtained based on the exit gantry, a selection is made from multiple expected driving paths based on the position of the exit gantry, and the corresponding expected charging amount is determined as the final charging amount.

[0014] In some embodiments of the present invention, if a regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when the on-board equipment signal is obtained based on the critical gantry, the historical driving record of the vehicle is obtained, and the historical path passing through the critical gantry is screened out from the historical driving record, and the driving probabilities of multiple predicted driving paths are calculated based on the historical paths. If no exit gantry of any predicted driving path obtains the on-board equipment signal again within a preset time period after the critical gantry obtains the on-board equipment signal, the predicted charging amount corresponding to the predicted driving path with the maximum driving probability is determined as the final charging amount.

[0015] In some embodiments of the present invention, if a segmented charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When a vehicle-mounted equipment signal is obtained based on the gantry, the corresponding preset charging amount is charged.

[0016] In some embodiments of the present invention, if a segmented successive charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When a vehicle-mounted equipment signal is obtained based on the gantry, the preset charging amount is charged, and the vehicle information corresponding to the vehicle-mounted equipment signal is published to the gantry network.

[0017] In some embodiments of the present invention, if a segmented successive charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, it is determined based on the vehicle information in the gantry network whether there is a gantry in which the upstream gantry of any gantry passed by the same vehicle has not obtained the on-board equipment signal of the corresponding vehicle. If so, the charging is extended from the gantry upstream of the gantry to the first gantry that obtains the on-board equipment signal of the vehicle, and the gantry between the extended gantry and the gantry is regarded as a missed gantry, and the preset charging amount corresponding to the gantry is collected.

[0018] The second aspect of the present invention also provides a highway free-flow toll collection system compatible with the digital RMB, the system comprising a computer device, the computer device comprising a processor and a memory, the memory storing computer instructions, the processor being used to execute the computer instructions stored in the memory, and when the computer instructions are executed by the processor, the system implements the steps implemented by the method described above.

[0019] The third aspect of the present invention also provides a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, it implements the steps implemented by the aforementioned highway free-flow charging method compatible with the digital RMB.

[0020] Additional advantages, purposes, and features of the present invention will be described in part in the following description, and will become apparent to those skilled in the art after studying the following, or may be learned from the practice of the present invention. The purposes and other advantages of the present invention may be specifically pointed out and obtained in the specification and the accompanying drawings.

[0021] Those skilled in the art will appreciate that the objectives and advantages that can be achieved with the present invention are not limited to the above specific description, and the above and other objectives that can be achieved by the present invention will be more clearly understood from the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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.

[0023] Figure 1A schematic diagram of an implementation method of a highway free-flow charging method compatible with digital RMB of the present invention;

[0024] Figure 2 This is a schematic diagram of the architecture of the highway free-flow charging method compatible with the digital RMB of the present invention;

[0025] Figure 3 A schematic diagram of a path with a gantry is shown. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution 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 illustrative embodiments of the present invention and their descriptions are used to explain the present invention, but are not intended to limit the present invention.

[0027] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0028] like Figure 1 and 2 As shown, the present invention proposes a highway free-flow charging method compatible with digital RMB, which includes the following steps:

[0029] Step S100, acquiring a vehicle-mounted device signal in real time based on a preset gantry device on the road, completing handshake authentication based on the vehicle-mounted device signal, and after completing handshake authentication, parsing the vehicle-mounted device signal based on the preset gantry device on the road to obtain vehicle information;

[0030] In the specific implementation process, in the step of obtaining the vehicle-mounted device signal in real time based on the preset gantry equipment on the highway and completing the handshake authentication based on the vehicle-mounted device signal, when the vehicle drives to the gantry, the gantry roadside equipment RSU (RoadSide Unit) communicates with the vehicle-mounted device OBU (On board Unit) through the DSRC (Dedicated Short Range Communication) interface, and the RSU sends a broadcast wake-up signal and a BST (Beacon Service Table) signal to the OBU, wherein the BST signal carries the roadside unit's identifier (Beacon ID). After being awakened, the OBU responds to the VST (Vehicle Service Table) signal, which contains information such as the OBU version, contract serial number and validity period, IC card version and serial number, and completes the handshake authentication.

[0031] In the specific implementation process, in the step of obtaining vehicle information by parsing the on-board equipment signal based on the preset gantry equipment on the road, the RSU sends a read vehicle information instruction to the OBU, and the OBU returns the vehicle information, and the information format is the same as the existing ETC system.

[0032] Step S200, determining a toll amount based on the path information in the vehicle information;

[0033] Step S300, based on the OBU version information, IC card version information or OBU device type information in the vehicle information, identify whether the OBU has the digital RMB transaction function. If it does, send a digital RMB transaction instruction to complete the digital RMB transaction; if it does not, send an ordinary ETC transaction instruction to complete the ordinary ETC transaction.

[0034] In some embodiments of the present invention, the RSU identifies whether the OBU has the digital RMB transaction function based on the OBU version, IC card version information or OBU device type information in the VST information. If it has the function, it sends a digital RMB transaction initialization instruction and the OBU returns a response message. The OBU that does not have the digital RMB transaction function performs the ordinary ETC transaction process.

[0035] In the steps of completing the digital RMB transaction, the digital RMB SDK (Software Development Kit) of the lane computer generates transaction information, sends the digital RMB transaction information to the OBU through the RSU, and the OBU returns the coin string and other authentication information; the digital RMB SDK of the lane computer verifies the OBU digital RMB coin string, and completes the digital RMB transaction after passing; after the digital RMB transaction is completed, the RSU sends a clear path information instruction to the OBU, and the OBU returns the path information file with the corresponding information; the RSU sends an end transaction instruction to the OBU, and the OBU returns the corresponding information; the digital RMB transaction module of the lane computer records the transaction information and submits the transaction results to the settlement system or bank for clearing and settlement.

[0036] By adopting the above scheme, this scheme can first interact directly with the vehicle's on-board equipment through the gantry, and further identify whether the OBU has the digital RMB transaction function through the OBU version information, IC card version information or OBU device type information. If it has the digital RMB transaction function, it can complete the digital RMB transaction and improve the transaction convenience.

[0037] In some embodiments of the present invention, in the step of determining the charging amount based on the path information in the vehicle information, a regional charging method, a segmented charging method or a segmented continuous charging method is adopted.

[0038] In the specific implementation process, the present invention adopts open gantry charging, and no toll stations are set up. All gantries have the charging function, and the charging methods support two types: segmented charging and regional charging. In segmented charging, a single gantry supports collecting tolls only on the road sections near the gantry, without distinguishing between entrance gantries, exit gantries and path marking gantries; in regional charging, there are three types of entrance gantries, exit gantries and intermediate gantries in the toll road network area.

[0039] like Figure 3 As shown, in some embodiments of the present invention, if a regional charging method is adopted, the gantry equipment includes an entrance gantry, an identification gantry and an exit gantry, and the step of determining the charging amount based on the path information in the vehicle information includes: step S211, determining the starting position of the path based on the vehicle-mounted equipment signal obtained by the entrance gantry, step S212, determining the passing position of the path based on the vehicle-mounted equipment signal obtained by the identification gantry, step S213, determining the ending position of the path based on the vehicle-mounted equipment signal obtained by the exit gantry, step S214, determining the driving path based on the starting position, passing position and ending position of the path, and determining the charging amount based on the driving path.

[0040] During the specific implementation process, when the vehicle drives to the entrance gantry, the gantry roadside equipment RSU communicates with the on-board terminal OBU through the DSRC interface. The RSU transmits a broadcast wake-up signal and a BST (Beacon Service Table) signal to the OBU, where the BST signal carries the roadside unit's identifier (Beacon ID). After being awakened, the OBU responds with a VST signal, which contains information such as the OBU version, contract serial number and validity period, IC card version and serial number, etc. The RSU sends a read vehicle information instruction to the OBU, and the OBU returns the vehicle information in the same format as the existing ETC system. The RSU sends an update entrance information instruction to the OBU, and the OBU records the current entrance gantry information and time information. The RSU sends an end transaction instruction to the OBU, and the OBU returns the corresponding information.

[0041] When the vehicle continues to drive to the path gantry, the DSRC communication format of the path gantry is similar to the entrance gantry process, only the update entrance information instruction when the vehicle drives to the entrance gantry is changed to the update path instruction, and the OBU updates the path information.

[0042] When the vehicle drives to the exit gantry, the first two steps of the DSRC communication process of the exit gantry are the same as those of the entrance gantry, namely, RSU transmits BST, OBU returns VST signal, RSU sends a command to read vehicle information, OBU returns vehicle information to implement equipment authentication, RSU of the exit gantry sends a command to read path information, OBU returns response path information, and RSU calculates the charging amount based on the path information.

[0043] In the specific implementation process, the road is two-way traffic, then the entrance gantry in one direction of traffic is the exit gantry in the opposite direction of traffic, and similarly, the exit gantry in one direction of traffic is the entrance gantry in the opposite direction of traffic.

[0044] In some embodiments of the present invention, if a regional charging method is adopted, the identification gantry includes an intermediate gantry and a critical gantry, and the critical gantry is adjacent to the exit gantry. In the step of determining the charging amount based on the path information in the vehicle information, when a vehicle-mounted device signal is obtained based on the critical gantry, the current driving path of the vehicle is obtained, and multiple estimated driving paths are obtained based on the feasible path between the critical gantry and the exit gantry, and the estimated charging amount for each estimated driving path is calculated.

[0045] In some embodiments of the present invention, if a regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when a vehicle-mounted equipment signal is obtained based on the exit gantry, a selection is made from multiple expected driving paths based on the position of the exit gantry, and the corresponding expected charging amount is determined as the final charging amount.

[0046] With the above scheme, when the scheme adopts the regional charging method, when the vehicle drives to the critical gantry, the final driving path is estimated to obtain the expected driving path, and the expected charging amount for each expected driving path can be calculated. At this time, when the vehicle drives to the exit gantry, it can be quickly matched in the expected driving path and the charging amount can be determined. That is, when the vehicle drives to the exit gantry, it is no longer necessary to perform complex path calculations, only simple matching is required to quickly determine the charging amount, thereby improving the billing processing efficiency.

[0047] In some embodiments of the present invention, if a regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when the on-board equipment signal is obtained based on the critical gantry, the historical driving record of the vehicle is obtained, and the historical path passing through the critical gantry is screened out from the historical driving record, and the driving probabilities of multiple predicted driving paths are calculated based on the historical paths. If no exit gantry of any predicted driving path obtains the on-board equipment signal again within a preset time period after the critical gantry obtains the on-board equipment signal, the predicted charging amount corresponding to the predicted driving path with the maximum driving probability is determined as the final charging amount.

[0048] With the above scheme, when the scheme adopts the regional charging method, the vehicle-mounted equipment signal is obtained based on the critical gantry, the vehicle's historical driving record is obtained, and the driving probabilities of multiple expected driving paths are calculated based on the historical paths. When the critical gantry fails to collect the vehicle-mounted equipment signal, the expected charging amount corresponding to the expected driving path with the maximum driving probability is determined as the final charging amount. This can prevent charging failures caused by signal collection failures due to equipment failures or weather, thereby improving charging accuracy.

[0049] In some embodiments of the present invention, if a segmented charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When a vehicle-mounted equipment signal is obtained based on the gantry, the corresponding preset charging amount is charged.

[0050] In the specific implementation process, if the segmented charging method is adopted, when the vehicle drives to the gantry, the gantry roadside equipment RSU communicates with the on-board terminal OBU through the DSRC interface, and the RSU sends a broadcast wake-up signal and a BST signal to the OBU. After being awakened, the OBU responds to the VST signal, which contains the OBU version, contract serial number and validity period, IC card version, serial number and other information; the RSU sends a vehicle information read instruction to the OBU, and the OBU returns the vehicle information, and the information format is the same as the existing ETC system; the RSU identifies whether the OBU has the digital RMB transaction function based on the OBU version, IC card version information or OBU device type information in the VST information.

[0051] In some embodiments of the present invention, if a segmented successive charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When a vehicle-mounted equipment signal is obtained based on the gantry, the preset charging amount is charged, and the vehicle information corresponding to the vehicle-mounted equipment signal is published to the gantry network.

[0052] In the specific implementation process, if the segmented continuous charging method is adopted, all gantries in the road network area are connected online in real time, and the roadside equipment of the subsequent gantries can continue to collect the unfinished transactions of the previous gantries. When the vehicle drives to the gantry, the gantry roadside equipment RSU communicates with the on-board terminal OBU through the DSRC interface, and the RSU sends a broadcast wake-up signal and a BST signal to the OBU. After being awakened, the OBU responds to the VST signal, which contains the OBU version, contract serial number and validity period, IC card version, serial number and other information; RSU sends a read vehicle information instruction to the OBU, and the OBU returns the vehicle information, and the information format is the same as the existing ETC system; RSU identifies whether the OBU has the digital RMB transaction function based on the OBU version, IC card version information or OBU device type information in the VST information.

[0053] In some embodiments of the present invention, if a segmented successive charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, it is determined based on the vehicle information in the gantry network whether there is a gantry in which the upstream gantry of any gantry passed by the same vehicle has not obtained the on-board equipment signal of the corresponding vehicle. If so, the charging is extended from the gantry upstream of the gantry to the first gantry that obtains the on-board equipment signal of the vehicle, and the gantry between the extended gantry and the gantry is regarded as a missed gantry, and the preset charging amount corresponding to the gantry is collected.

[0054] In the specific implementation process, in the step of determining whether there is a gantry through which the same vehicle has passed and the upstream gantry of any gantry has not obtained the on-board equipment signal of the corresponding vehicle based on the vehicle information in the gantry network, a search is conducted upstream along the upstream path of the gantry, searching the gantries one by one.

[0055] During the specific implementation process, the information of digital RMB transactions is communicated through the dedicated short-range communication (DSRC) interface. RSU and OBU serve as communication media to provide communication channels for the on-board digital RMB transaction module and the digital RMB transaction SDK or hardware module at the lane end.

[0056] In the embodiment of the present invention, the digital RMB transaction module of the roadside equipment can be in the form of software or hardware entity. The digital RMB transaction supports online account mode, single offline quasi-account mode or dual offline value mode. Different transaction modes do not affect the application of the embodiment of the present invention.

[0057] In an embodiment of the present invention, if the current toll transaction of the gantry is not successfully completed or the transaction fails, a video camera or other equipment may be installed on the gantry, and the roadside system uses the DSRC transaction path information, vehicle information, and video information of the unfinished transaction as the basis for supplementary payment or recovery.

[0058] In summary, the roadside transaction module of the present invention is responsible for completing online or offline digital RMB toll transactions with the vehicle-mounted terminal, and the background data settlement system completes transaction settlement and accounting processing. When the vehicle travels near the toll gantry, the gantry roadside equipment and the vehicle-mounted terminal conduct digital RMB transactions through the DSRC interface. After the transaction is completed, the roadside equipment sends the transaction information to the background settlement system. The background settlement system confirms the transaction and settles with the user account and the road operator account. The present invention supports ETC transactions, as well as online and offline transactions of digital RMB, and supports regional charging, segmented independent charging, and segmented continuous charging modes to achieve non-stop and non-sensing charging functions.

[0059] Furthermore, the present invention realizes highway digital RMB charging and provides a variety of contactless charging methods, which improves the convenience of highway charging and meets the needs of promoting the use of digital RMB.

[0060] An embodiment of the present invention also provides a highway free-flow toll collection system compatible with the digital RMB, the system comprising a computer device, the computer device comprising a processor and a memory, the memory storing computer instructions, the processor being used to execute the computer instructions stored in the memory, and when the computer instructions are executed by the processor, the system implements the steps implemented by the method described above.

[0061] The embodiment of the present invention also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps implemented by the aforementioned free-flow charging method for highways compatible with digital RMB. 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 technical field.

[0062] It should be understood by those skilled in the art that the 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 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 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.

[0063] It should be clear that the present invention is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present invention is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present invention.

[0064] 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 features of other embodiments or replace features of other embodiments.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the embodiments of the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A highway free-flow charging method compatible with digital RMB, characterized in that: The method comprises the following steps: Acquire vehicle-mounted device signals in real time based on a preset gantry device on the road, complete handshake authentication based on the vehicle-mounted device signals, and after completing handshake authentication, parse the vehicle-mounted device signals based on the preset gantry device on the road to acquire vehicle information; Determining a toll amount based on the path information in the vehicle information; Based on the OBU version information, IC card version information or OBU device type information in the vehicle information, identify whether the OBU has the digital RMB transaction function. If so, send a digital RMB transaction instruction to complete the digital RMB transaction; if not, send an ordinary ETC transaction instruction to complete the ordinary ETC transaction.

2. The highway free-flow charging method compatible with digital RMB according to claim 1 is characterized in that: In the step of determining the charging amount based on the path information in the vehicle information, a regional charging method, a segmented charging method or a segmented continuous charging method is adopted.

3. The highway free-flow charging method compatible with digital RMB according to claim 2 is characterized in that: If the regional charging method is adopted, the gantry equipment includes an entrance gantry, an identification gantry and an exit gantry. In the step of determining the charging amount based on the path information in the vehicle information, the starting position of the path is determined based on the vehicle-mounted equipment signal obtained by the entrance gantry, the passing position of the path is determined based on the vehicle-mounted equipment signal obtained by the identification gantry, and the ending position of the path is determined based on the vehicle-mounted equipment signal obtained by the exit gantry. The driving path is determined based on the starting position, passing position and ending position of the path, and the charging amount is determined based on the driving path.

4. The highway free-flow charging method compatible with digital RMB according to claim 3 is characterized in that: If the regional charging method is adopted, the identification gantry includes the intermediate gantry and the critical gantry, and the critical gantry is adjacent to the exit gantry. In the step of determining the charging amount based on the path information in the vehicle information, when the vehicle-mounted equipment signal is obtained based on the critical gantry, the current driving path of the vehicle is obtained, and multiple estimated driving paths are obtained based on the feasible path between the critical gantry and the exit gantry, and the estimated charging amount for each estimated driving path is calculated.

5. The highway free-flow charging method compatible with digital RMB according to claim 4 is characterized in that: If the regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when the vehicle-mounted equipment signal is obtained based on the exit gantry, a selection is made from multiple expected driving paths based on the position of the exit gantry, and the corresponding expected charging amount is determined as the final charging amount.

6. The highway free-flow charging method compatible with digital RMB according to claim 4 is characterized in that: If the regional charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, when the on-board equipment signal is obtained based on the critical gantry, the historical driving record of the vehicle is obtained, and the historical path passing through the critical gantry is screened out from the historical driving record, and the driving probabilities of multiple expected driving paths are calculated based on the historical paths. If no exit gantry of any expected driving path obtains the on-board equipment signal again within a preset time period after the critical gantry obtains the on-board equipment signal, the expected charging amount corresponding to the expected driving path with the maximum driving probability is determined as the final charging amount.

7. The highway free-flow charging method compatible with digital RMB according to claim 2 is characterized in that: If a segmented charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When the vehicle-mounted equipment signal is obtained based on the gantry, the preset charging amount is charged.

8. The highway free-flow charging method compatible with digital RMB according to claim 2 is characterized in that: If a segmented charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, each gantry serves as a path point in the path information, and each path point corresponds to a preset charging amount. When the vehicle-mounted equipment signal is obtained based on the gantry, the corresponding preset charging amount is charged, and the vehicle information corresponding to the vehicle-mounted equipment signal is published to the gantry network.

9. The highway free-flow charging method compatible with digital RMB according to claim 8 is characterized in that: If a segmented successive charging method is adopted, in the step of determining the charging amount based on the path information in the vehicle information, it is determined based on the vehicle information in the gantry network whether any of the upstream gantry of the gantries passed by the same vehicle has not obtained the on-board equipment signal of the corresponding vehicle. If so, the charging is extended from the gantry upstream of the gantry to the first gantry that obtains the on-board equipment signal of the vehicle, and the gantry between the extended gantry and the gantry is regarded as a missed gantry, and the preset charging amount corresponding to the gantry is collected.

10. A highway free-flow toll collection system compatible with digital RMB, characterized in that: The system includes a computer device, which includes a processor and a memory. The memory stores computer instructions. The processor is used to execute the computer instructions stored in the memory. When the computer instructions are executed by the processor, the system implements the steps implemented by the method as described in any one of claims 1 to 9.

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