Multi-province issuing method for ETC vehicle-mounted electronic tag of multi-logic channel ESAM chip

Abstract

The invention discloses a multi-province issuing method for an ETC vehicle-mounted electronic tag of a multi-logic-channel ESAM chip, and relates to the technical field of channel management and key storage of the ESAM chip, and the method comprises the steps: building a physical pin through a multiplexer, and expanding the logic channels of the ESAM chip; writing an issuing secret key of a corresponding province in the logic channel, and distributing a channel identifier for the logic channel; and matching the corresponding channel identifier according to the target province information input by the user, and reading the issuing secret key in the corresponding logic channel to complete the issuing of the ETC vehicle-mounted electronic tag. The problem that an ESAM chip needs to be replaced when a traditional ETC vehicle-mounted electronic tag is issued in a cross-province mode is solved, unified management and safe storage of multi-province secret keys are achieved, hardware cost and maintenance cost are greatly reduced, and expandability and practicability of the system are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of channel management and key storage of ESAM chips, and particularly to a method for issuing ETC vehicle-mounted electronic tags in multiple provinces for a multi-logical-channel ESAM chip. Background Art

[0002] With the rapid development of intelligent transportation systems, the Electronic Toll Collection (ETC) system has become an important part of modern transportation infrastructure. The ETC system uses dedicated short-range communication technology to wirelessly communicate between vehicle-mounted electronic tags and roadside devices to achieve vehicle identification and automatic toll deduction. Its core component, the ESAM (Embedded Secure Access Module) chip, is responsible for storing and managing key information to ensure transaction security. Traditional ESAM chips adopt a single-channel architecture, in which the physical interface and storage space are designed in a one-to-one correspondence. This structure could meet the basic requirements when the scale of the early ETC system was small. However, with the popularization and application of the ETC system across the country, different provinces adopt different key systems due to differences in settlement requirements, making the single-channel architecture of traditional ESAM chips face serious limitations in cross-province application scenarios.

[0003] The current application of ESAM chips in ETC vehicle-mounted electronic tags has the following technical bottlenecks: First, the utilization efficiency of physical channel resources is low. Each channel can only store the key information of a single province, resulting in waste of chip space. Second, the key management mechanism lacks flexibility and cannot dynamically adapt to the multi-province issuance requirements. Once the user selects the issuing province, it cannot be changed. Third, the security access control mechanism is relatively simple and difficult to meet the differentiated security requirements of cross-province key management. Finally, the system scalability is limited. When new provinces need to be supported, it often requires replacing hardware devices, resulting in additional cost expenditures. These problems are particularly prominent in the field of front-loaded ETC devices for vehicles, seriously affecting the user experience and system operation efficiency.

[0004] Based on the above problems, the present invention proposes a method for issuing ETC vehicle-mounted electronic tags in multiple provinces for a multi-logical-channel ESAM chip. The present invention extends the physical channels of the ESAM chip through multiplexing technology, realizes the dynamic allocation and management of logical channels, and establishes a mapping relationship between provinces and channel identifiers, thus solving the technical problem that existing ETC vehicle-mounted electronic tags cannot be issued across provinces. Summary of the Invention

[0005] In view of the problems in the existing ETC vehicle-mounted electronic tag system, where the ESAM chip adopts a single-channel architecture, with low physical resource utilization, a rigid key management mechanism, and limited cross-province applications, the present invention is proposed.

[0006] Therefore, the problem to be solved by the present invention is how to improve the channel management mechanism of the ESAM chip through multi-logical channel technology, realize the multi-province issuance function of the ETC on-vehicle electronic tag, and improve the flexibility of the system and the user experience.

[0007] To solve the above technical problems, the present invention provides the following technical solutions:

[0008] In a first aspect, an embodiment of the present invention provides a method for issuing an ETC on-vehicle electronic tag with a multi-logical channel ESAM chip, which includes:

[0009] Establish physical pins through a multiplexer to expand the logical channels of the ESAM chip, where the logical channels include a storage space and an access control unit;

[0010] Write the issuance secret key corresponding to the province into the logical channel, and assign a channel identifier to the logical channel;

[0011] Match the corresponding channel identifier according to the target province information input by the user, and read the issuance secret key in the corresponding logical channel to complete the issuance of the ETC on-vehicle electronic tag.

[0012] As a preferred solution of the method for issuing an ETC on-vehicle electronic tag with a multi-logical channel ESAM chip of the present invention, wherein: the physical pins correspond to the logical channels; the method for establishing the physical pins is:

[0013] Obtain the number of physical channels and the physical pin interface of the ESAM chip;

[0014] Configure the number of input ports of the multiplexer according to the number of physical channels;

[0015] Establish a connection between the physical pin interface and the output port of the multiplexer to form the physical pins.

[0016] As a preferred solution of the method for issuing an ETC on-vehicle electronic tag with a multi-logical channel ESAM chip of the present invention, wherein: writing the issuance secret key corresponding to the province into the logical channel and assigning a channel identifier to the logical channel includes:

[0017] Obtain the ETC issuance key, and determine whether the ESAM is a single logical channel;

[0018] Based on the judgment result, allocate a storage area for the logical channel, and set an access control unit and an encryption unit in the storage area;

[0019] Configure the access permission according to the access control unit, and write the issuance secret key into the storage area;

[0020] Encrypt the stored key information according to the encryption unit, and decrypt the read key information when reading the key information.

[0021] As a preferred solution of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip according to the present invention, wherein: the channel identifier includes a province code and a channel serial number; the specific steps of establishing a corresponding relationship between the channel identifier and the province include:

[0022] Add a channel identification field to the communication protocol, and write the channel identifier into the channel identification field;

[0023] Establish a mapping table between the channel identification field and the province.

[0024] As a preferred solution of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip according to the present invention, wherein: matching the corresponding channel identifier according to the target province information input by the user, and reading the issuing key in the corresponding logic channel to complete the issuing of the ETC vehicle-mounted electronic tag, including:

[0025] When the user selects the province to which the ETC target province information belongs, connect to the issuing platform of the corresponding province, obtain the issuing information and province identifier, and detect the validity of the key information in the storage space corresponding to the selected target issuing province;

[0026] If the key information is valid, verify the access permission to the channel identifier and establish a data transmission path for the logic channel; if the key information is invalid, request the server to update the key information and write the updated key information into the storage space

[0027] Write the ETC into the corresponding ESAM logic channel according to the target province information, and determine whether the writing is successful;

[0028] If the writing is successful, obtain the logic channel address corresponding to this channel identifier, close other logic channels, and read the issuing key from the storage area through the data transmission path;

[0029] If the writing fails, return a writing failure prompt message to the user.

[0030] As a preferred solution of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip according to the present invention, wherein: the method for establishing the data transmission path is

[0031] Obtain the physical pin address of the logic channel;

[0032] Configure the gating signal of the multiplexer;

[0033] Switch the connection state of the input port and the output port of the multiplexer according to the selection signal to form the data transmission path.

[0034] As a preferred solution of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip according to the present invention, wherein: the method for verifying access rights is as follows:

[0035] Obtain the access control unit corresponding to the channel identifier;

[0036] Judge whether the current access request meets the permission requirements according to the preset access permission rules in the access control unit;

[0037] If the permission requirements are met, authorize access to the logic channel;

[0038] If the permission requirements are not met, return a prompt message indicating insufficient access rights.

[0039] In a second aspect, an embodiment of the present invention provides a system for issuing ETC vehicle-mounted electronic tags in multiple provinces of a multi-logic-channel ESAM chip, which includes:

[0040] An expansion module for establishing physical pins through a multiplexer to expand the logic channels of the ESAM chip, where the logic channels include a storage space and an access control unit;

[0041] An allocation module for writing the issuing secret key corresponding to the province into the logic channel and allocating a channel identifier to the logic channel;

[0042] A reading module for matching the corresponding channel identifier according to the target province information input by the user and reading the issuing secret key in the corresponding logic channel to complete the issuing of the ETC vehicle-mounted electronic tag.

[0043] In a third aspect, an embodiment of the present invention provides a computer device, including a memory and a processor, where the memory stores a computer program, and wherein: when the computer program instructions are executed by the processor, the steps of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip as described in the first aspect of the present invention are implemented.

[0044] In a fourth aspect, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, and wherein: when the computer program instructions are executed by the processor, the steps of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces of the multi-logic-channel ESAM chip as described in the first aspect of the present invention are implemented.

[0045] The beneficial effects of the present invention are as follows: By establishing physical pins through a multiplexer and expanding the logical channels of the ESAM chip, the dynamic expansion of logical channels under limited physical resources is realized. Each logical channel has an independent storage space and access control unit, effectively solving the technical problem of limited physical channels of traditional ESAM chips and significantly improving the chip resource utilization efficiency; By writing the distribution keys of corresponding provinces into the logical channels and assigning channel identifiers, a one-to-one correspondence between provinces and channels is established, realizing the independent storage and secure isolation of multi-province keys, avoiding mutual interference between keys of different provinces, and improving the security of data storage; When the user inputs the target province information, the system can quickly match the corresponding channel identifier and read the corresponding distribution key, which not only simplifies the user operation process, but also improves the key reading efficiency, and at the same time ensures the security of key access through the access control mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0047] Figure 1 It is the overall flowchart of the multi-province issuance method of the ETC on-vehicle electronic tag of the multi-logical channel ESAM chip in Embodiment 1.

[0048] Figure 2 It is the multi-logical channel key writing flowchart of the multi-province issuance method of the ETC on-vehicle electronic tag of the multi-logical channel ESAM chip in Embodiment 1.

[0049] Figure 3 It is the multi-logical ETC activation flowchart of the multi-province issuance method of the ETC on-vehicle electronic tag of the multi-logical channel ESAM chip in Embodiment 1.

[0050] Figure 4 It is the service block diagram of the multi-province issuance method of the ETC on-vehicle electronic tag of the multi-logical channel ESAM chip in Embodiment 2.

[0051] Figure 5 Embodiment 2 is the multi-key storage logic schematic diagram of the multi-province issuance method of the ETC on-vehicle electronic tag of the multi-logical channel ESAM chip. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0052] In order to make the above objects, features and advantages of the present invention more obvious and understandable, the following will make a detailed description of the specific embodiments of the present invention in conjunction with the drawings of the specification.

[0053] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention may be practiced in other ways different from those described herein. Persons skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0054] Secondly, as used herein, "an embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in an embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or alternative embodiments that exclude each other.

[0055] Embodiment 1

[0056] Referring to Figures 1 to 3 , for the first embodiment of the present invention, this embodiment provides a method for issuing ETC vehicle-mounted electronic tags of multi-logic-channel ESAM chips in multiple provinces, including:

[0057] S1: Establish physical pins through a multiplexer to expand the logic channels of the ESAM chip, where the logic channels include independent storage spaces and access control units.

[0058] Specifically, the physical pins correspond to the logic channels; the method for establishing the physical pins is to obtain the number of physical channels of the ESAM chip and the physical pin interface parameters; configure the number of input ports of the multiplexer according to the number of physical channels; establish a connection between the physical pin interface and the output port of the multiplexer to form physical pins.

[0059] Furthermore, establishing the storage space of the logic channels includes: using a protocol stack to manage data transmission in the independent storage space; setting access permission levels for the independent storage space; establishing a secret key index table in the storage space; the secret key index table contains the correspondence between province identifiers and secret key storage addresses.

[0060] S2: Write the issuing secret keys corresponding to the provinces in the logic channels, and assign channel identifiers to the logic channels, where the channel identifiers are in correspondence with the provinces.

[0061] Specifically, as shown in Figure 2 , obtain the ETC issuing key and determine whether the ESAM is a single logic channel.

[0062] Further, the method for determining whether the ESAM is a single logical channel includes: reading the configuration register information of the ESAM chip; obtaining the model identification and version information of the ESAM chip; detecting the number of physical channels of the ESAM chip; determining whether the ESAM chip supports the multiplexing function; if the detected number of physical channels is greater than 1 and supports the multiplexing function, it is determined as a multi-logical channel; if the detected number of physical channels is 1 or does not support the multiplexing function, it is determined as a single logical channel.

[0063] Furthermore, based on the judgment result, allocate a storage area for the logical channel, and set an access control unit and an encryption unit in the storage area; configure the access permission according to the access control unit, and write the issued secret key into the storage area; encrypt the stored secret key information according to the encryption unit, and decrypt the read secret key information when reading the secret key information.

[0064] It should be noted that a corresponding relationship is established between the channel identifier and the province; the channel identifier includes the province code and the channel serial number.

[0065] Specifically, the specific steps for establishing the corresponding relationship between the channel identifier and the province include: adding a channel identification field to the communication protocol, and writing the channel identifier into the channel identification field; establishing a mapping table between the channel identification field and the province.

[0066] S3: Match the corresponding channel identifier according to the target province information input by the user, and read the issued secret key in the corresponding logical channel to complete the issuance of the ETC on-vehicle electronic tag.

[0067] Specifically, as Figure 3 shown, when the user selects the province to which the ETC target province information belongs, connect to the corresponding province issuing platform, obtain the issuing information and the province identifier, and detect the validity of the secret key information in the storage space corresponding to the selected target issuing province.

[0068] Further, if the secret key information is valid, verify the access permission for the channel identifier and establish a data transmission path for the logical channel; if the secret key information is invalid, request the server to update the secret key information and write the updated secret key information into the storage space.

[0069] Furthermore, the method for access permission verification is: obtain the access control unit corresponding to the channel identifier; judge whether the current access request meets the permission requirements according to the preset access permission rules in the access control unit; if it meets the permission requirements, authorize access to the logical channel; if it does not meet the permission requirements, return a prompt message indicating insufficient access permission.

[0070] Specifically, write the ETC into the corresponding ESAM logical channel according to the target province information, and determine whether the writing is successful; if the writing is successful, obtain the logical channel address corresponding to this channel identifier, close other logical channels, and read the issuance key from the storage area through the data transmission path; if the writing fails, return a writing failure prompt message to the user.

[0071] Further, the method for establishing the data transmission path is to obtain the physical pin address of the logical channel; configure the strobe signal of the multiplexer; and switch the connection state of the input port and output port of the multiplexer according to the strobe signal to form the data transmission path.

[0072] Furthermore, this embodiment also provides an ETC vehicle-mounted electronic tag multi-province issuance system for a multi-logical channel ESAM chip, including: an expansion module for establishing physical pins through a multiplexer to expand the logical channels of the ESAM chip, where the logical channels include independent storage spaces and access control units; an allocation module for writing the issuance keys corresponding to the provinces into the logical channels and allocating channel identifiers to the logical channels, where the channel identifiers and provinces establish a corresponding relationship; a reading module for matching the corresponding channel identifiers according to the target province information input by the user and reading the issuance keys in the corresponding logical channels to complete the issuance of the ETC vehicle-mounted electronic tag.

[0073] This embodiment also provides a computer device applicable to the case of the ETC vehicle-mounted electronic tag multi-province issuance method for a multi-logical channel ESAM chip, including a memory and a processor; the memory is used to store computer-executable instructions, and the processor is used to execute the computer-executable instructions to implement the ETC vehicle-mounted electronic tag multi-province issuance method proposed in the above embodiment.

[0074] This computer device can be a terminal. The computer device includes a processor, a memory, a communication interface, a display screen, and an input device connected through a system bus. Among them, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The communication interface of the computer device is used to communicate with an external terminal in a wired or wireless manner, and the wireless manner can be achieved through WIFI, a carrier network, NFC (Near Field Communication), or other technologies. The display screen of the computer device can be a liquid crystal display screen or an electronic ink display screen, and the input device of the computer device can be a touch layer covered on the display screen, or a button, a trackball, or a touchpad set on the computer device housing, or an external keyboard, touchpad, or mouse, etc.

[0075] This embodiment also provides a storage medium, on which a computer program is stored. When the program is executed by a processor, the following steps are implemented: establishing physical pins through a multiplexer to expand the logical channels of the ESAM chip, where the logical channels include a storage space and an access control unit; writing the distribution secret key corresponding to the province into the logical channels and assigning a channel identifier to the logical channels, where a corresponding relationship is established between the channel identifier and the province; matching the corresponding channel identifier according to the target province information input by the user, and reading the distribution secret key in the corresponding logical channel to complete the issuance of the ETC on-vehicle electronic tag.

[0076] In summary, the present invention establishes physical pins through a multiplexer and expands the logical channels of the ESAM chip, realizing the dynamic expansion of logical channels under the condition of limited physical resources. Each logical channel has an independent storage space and an access control unit, effectively solving the technical problem of limited physical channels of the traditional ESAM chip and significantly improving the utilization efficiency of chip resources; by writing the distribution keys corresponding to the provinces into the logical channels and assigning channel identifiers, a one-to-one correspondence between the provinces and the channels is established, realizing the independent storage and secure isolation of multi-province keys, avoiding the mutual interference between keys of different provinces, and improving the security of data storage; when the user inputs the target province information, the system can quickly match the corresponding channel identifier and read the corresponding distribution key, which not only simplifies the user operation process but also improves the key reading efficiency, and at the same time ensures the security of key access through the access control mechanism.

[0077] Embodiment 2

[0078] Referring to Figures 4 to 5 , which is the second embodiment of the present invention. This embodiment provides a method for issuing multi-province ETC on-vehicle electronic tags with a multi-logical-channel ESAM chip. In order to verify the beneficial effects of the present invention, scientific demonstration is carried out through economic benefit calculation and simulation experiments.

[0079] Specifically, as Figure 4As shown in the figure, the system of the method of the present invention adopts a modular design, including four core parts: peripherals, ETC on-vehicle electronic tags, controllers, and multi-channel storage. The peripherals adopt the BLE 4.2 Bluetooth communication protocol, support a communication rate of 1 Mbps and 128-bit AES encrypted transmission, ensuring the security and real-time performance of data transmission. In terms of physical channel expansion, a 74HC4052 dual 4-to-1 multiplexer is used to expand the original 2 physical channels (CH0, CH1) of the ESAM chip into 8 logical channels. The control signals of the multiplexer adopt a three-wire system of EN, S0, and S1, which are respectively connected to the PA0, PA1, and PA2 ports of the MCU to achieve dynamic switching control of the channels. The system clock is configured to 12 MHz, and a stable waiting time of 50 μs is set during channel switching to ensure the reliability of data transmission.

[0080] Further, as Figure 5 shown, in terms of storage architecture design, a hierarchical and partitioned storage structure is adopted. The storage space of the ESAM chip is divided into multiple logical channels (CH1-CHN) and a common storage area. Each logical channel is independently allocated 32 KB of storage space, of which the key storage area occupies 16 KB, protected by the AES-256 encryption algorithm, and supports the key version management and validity verification mechanism; the data storage area occupies 8 KB, which is used to store province-specific service parameters, transaction record caches, and status information; the access storage area occupies 8 KB, which is responsible for access control, operation auditing, and security policy configuration. The common storage area is configured with 16 KB of space, of which 8 KB is used to store root keys and general encryption parameters, and the other 8 KB is used for global configuration parameter and system operation status management.

[0081] Furthermore, when the system is running, when the peripherals send a service request through the Bluetooth interface, the controller will select the corresponding logical channel through the multiplexer according to the province information of the request. For channel switching and access control, the system implements a three-level permission management mechanism: system level, management level, and user level, ensuring that the access of users at different levels to channel resources is strictly controlled. At the same time, the system also implements a dynamic key update mechanism, regularly checking the validity of the keys of each province. When it is detected that the key is about to expire or needs to be updated, a new key is requested from the server through a secure channel, and the update operation is completed after ensuring that the new key is verified.

[0082] Specifically, through actual tests and verifications, in the scenario of concurrent access in 8 provinces, the channel switching time of this system is controlled within 100 μs, the data read / write speed reaches 10 MB / s, the storage space utilization rate reaches 85%, the stable operation time of the system exceeds 10,000 hours, the abnormal recovery time does not exceed 1 second, and the success rate of key operations reaches 99.99%. Especially in terms of the number of supported provinces, it has been expanded from a single province to 8 provinces, with an increase rate of 700%, fundamentally solving the limitations of traditional solutions in supporting multi-province services.

[0083] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A method for issuing ETC vehicle-mounted electronic tags in multiple provinces using multi-logic channel ESAM chips, characterized in that: include, Establishing physical pins through a multiplexer to expand a logic channel of the ESAM chip, wherein the logic channel includes a storage space and an access control unit; Writing the issuance key of the corresponding province into the logical channel and assigning a channel identifier to the logical channel; Match the corresponding channel identifier according to the target province information entered by the user, and read the issuance key in the corresponding logical channel to complete the issuance of the ETC on-board electronic tag.

2. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 1, characterized in that: The physical pin corresponds to the logical channel; the method for establishing the physical pin is: Get the number of physical channels and physical pin interfaces of the ESAM chip; Configuring the number of input ports of the multiplexer according to the number of physical channels; The physical pin interface is connected to the output port of the multiplexer to form the physical pin.

3. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 2, characterized in that: Writing the issuance key of the corresponding province into the logical channel and assigning a channel identifier to the logical channel includes: Obtain the ETC issuance key and determine whether ESAM is a single logical channel; Based on the determination result, a storage area is allocated to the logical channel, and an access control unit and an encryption unit are set in the storage area; configuring access rights according to the access control unit and writing the issuance key into the storage area; The stored key information is encrypted according to the encryption unit, and when the key information is read, the read key information is decrypted.

4. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 3, characterized in that: The channel identifier includes a province code and a channel serial number; The specific steps of establishing a corresponding relationship between the channel identifier and the province include: Adding a channel identification field in the communication protocol, and writing the channel identifier into the channel identification field; A mapping table between the channel identification field and the province is established.

5. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 4, characterized in that: According to the target province information input by the user, the corresponding channel identifier is matched, and the issuance key in the corresponding logical channel is read to complete the issuance of the ETC vehicle electronic tag, including: When the user selects the province to which the ETC target province information belongs, the corresponding province issuance platform is connected to obtain the issuance information and province identification, and the validity of the secret key information in the storage space corresponding to the selected target issuance province is detected; If the key information is valid, the access authority of the channel identifier is verified to establish a data transmission path of the logical channel; if the key information is invalid, a request is made to the server to update the key information, and the updated key information is written into the storage space; Write ETC into the corresponding ESAM logical channel according to the target province information, and determine whether the writing is successful; If the writing is successful, the logical channel address corresponding to the channel identifier is obtained, other logical channels are closed, and the issuance key is read from the storage area through the data transmission path; If writing fails, a writing failure prompt message is returned to the user.

6. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 5, characterized in that: The method for establishing the data transmission path is: Obtaining the physical pin address of the logical channel; Configure the multiplexer's selection signal; The connection state of the input port and the output port of the multiplexer is switched according to the selection signal to form the data transmission path.

7. The method for issuing ETC vehicle-mounted electronic tags in multiple provinces using a multi-logic channel ESAM chip as claimed in claim 5, characterized in that: The method for access rights verification is: Get the access control unit corresponding to the channel identifier; Determining whether the current access request meets the permission requirements according to the access permission rules preset in the access control unit; If the permission requirements are met, access to the logical channel is authorized; If the permission requirements are not met, a prompt message indicating insufficient access rights will be returned.

8. A multi-province issuance system for ETC vehicle-mounted electronic tags using a multi-logical channel ESAM chip, a multi-province issuance method for ETC vehicle-mounted electronic tags using a multi-logical channel ESAM chip based on any one of claims 1 to 7, characterized in that: include, An expansion module, used to establish physical pins through a multiplexer to expand a logic channel of the ESAM chip, wherein the logic channel includes a storage space and an access control unit; An allocation module, used for writing the issuance key of the corresponding province into the logical channel and allocating a channel identifier to the logical channel; The reading module is used to match the corresponding channel identifier according to the target province information input by the user, and read the issuance key in the corresponding logical channel to complete the issuance of the ETC vehicle-mounted electronic tag.

9. A computer device comprising a memory and a processor, wherein the memory stores a computer program, wherein: When the processor executes the computer program, the steps of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces using the multi-logical channel ESAM chip described in any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, the steps of the method for issuing ETC vehicle-mounted electronic tags in multiple provinces using the multi-logical channel ESAM chip described in any one of claims 1 to 7 are implemented.

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