Access authentication methods for the equipment, roadside base stations, systems and storage media

Abstract

This application provides an access authentication method for a device, a roadside base station, a system, and a computer-readable storage medium. The method includes establishing a communication connection when a connection request information sent by a vehicle-mounted terminal is obtained and it is determined that the connection conditions are met; creating a target key when an information acquisition request sent by a vehicle-mounted terminal is obtained and it is determined that the vehicle-mounted terminal meets the key creation conditions based on the information acquisition request; sending the target key to the vehicle-mounted terminal when a key request information sent by the vehicle-mounted terminal is obtained; encrypting information obtained from traffic information publishing equipment and / or road information collection equipment; and sending the information to the vehicle-mounted terminal so that the vehicle-mounted terminal can decrypt the information according to the target key. This avoids the vehicle-mounted terminal connecting to multiple devices and improves the stability and efficiency of the communication connection. The roadside base station can also authenticate the accessing vehicle-mounted terminals, improving the security of communication.

Description

Technical Field

[0001] This application relates to the technical field of intelligent transportation, and in particular to an access authentication method for a device, a roadside base station, a system, and a computer-readable storage medium. Background Technology

[0002] In the field of intelligent transportation, various road testing devices, such as road information collection devices and traffic information dissemination devices, can generally only communicate with vehicle terminals individually. Vehicle terminals need to communicate with multiple devices, which can lead to unstable connections and communication delays due to too many road testing devices. Furthermore, the communication methods of different devices vary greatly, and vehicle terminals need to support multiple communication methods. At the same time, the integration, sharing, and conflict resolution of communication links cannot be handled, resulting in communication security issues. Summary of the Invention

[0003] This application provides an access authentication method for a device, a roadside base station, a system, and a computer-readable storage medium, aiming to improve the efficiency, accuracy, and security of communication between vehicle-mounted terminals and traffic information dissemination devices and / or road information collection devices.

[0004] Firstly, this application provides a device access authentication method, which includes the following steps:

[0005] Obtain connection request information sent by the vehicle terminal;

[0006] When the connection request information meets the connection conditions, a communication connection is established with the vehicle terminal;

[0007] When an information retrieval request is received from the vehicle terminal, and the vehicle terminal is determined to meet the key creation conditions based on the information retrieval request, a target key is created.

[0008] Upon receiving the key request information sent by the vehicle terminal, the target key is sent to the vehicle terminal.

[0009] Information obtained from traffic information dissemination equipment and / or road information collection equipment is encrypted and sent to the vehicle terminal so that the vehicle terminal can decrypt the information according to the target key.

[0010] Secondly, this application also provides a roadside base station, which is capable of communicating with an on-board terminal. The roadside base station includes a processor, a memory, and a computer program stored in the memory and executable by the processor. When the computer program is executed by the processor, it implements the steps of the access authentication method of the device as described above.

[0011] Thirdly, this application also provides a road test system, which includes an on-board terminal, a traffic information dissemination device and / or a road information collection device, a roadside base station communication connection to the traffic information dissemination device and / or the road information collection device, and the on-board terminal communication connection to the roadside base station according to the steps of the access authentication method of the device as described above, so as to obtain the information obtained by the traffic information dissemination device and / or the road information collection device.

[0012] Fourthly, this application also provides a computer-readable storage medium storing a computer program, wherein when the computer program is executed by a processor, it implements the steps of the device access authentication method described above.

[0013] This application provides an access authentication method for a device, a roadside base station, a system, and a computer-readable storage medium. The roadside base station establishes a communication connection with a vehicle-mounted terminal upon receiving a connection request and when the connection request meets the connection conditions. It can also create a target key upon receiving an information retrieval request from the vehicle-mounted terminal and determining that the vehicle-mounted terminal meets the key creation conditions based on the information retrieval request. Upon receiving a key request from the vehicle-mounted terminal, the target key is sent to the vehicle-mounted terminal. The roadside base station can also encrypt information obtained from traffic information dissemination devices and / or road information collection devices and send it to the vehicle-mounted terminal in response to the information retrieval request. This allows the vehicle-mounted terminal to encrypt information based on the target key, thereby avoiding communication connections between the vehicle-mounted terminal and multiple traffic information dissemination devices and / or road information collection devices, improving the stability and efficiency of the communication connection, and reducing communication latency. Furthermore, the roadside base station can authenticate the accessing vehicle-mounted terminals, enhancing communication security. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 A flowchart illustrating the steps of an access authentication method for a device provided in an embodiment of this application;

[0016] Figure 2 A flowchart illustrating an access authentication method for a device provided in an embodiment of this application;

[0017] Figure 3 This is a schematic block diagram of the structure of a roadside base station according to an embodiment of this application;

[0018] Figure 4 This is a schematic diagram of a road test system according to an embodiment of this application. Detailed Implementation

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] The flowchart shown in the attached diagram is for illustrative purposes only and does not necessarily include all content and operations / steps, nor does it necessarily have to be performed in the described order. For example, some operations / steps can be broken down, combined, or partially merged, so the actual execution order may change depending on the actual situation.

[0021] This application provides an access authentication method for a device, a roadside base station, a system, and a computer-readable storage medium. The access authentication method can be applied to a roadside base station, which is communicatively connected to a traffic information dissemination device and / or a road information collection device to obtain information acquired by the traffic information dissemination device and / or information collected by the road information collection device. After the vehicle-mounted terminal completes access authentication through the device's access authentication method, the roadside base station and the vehicle-mounted terminal achieve communication interaction, and the vehicle-mounted terminal can obtain the information acquired by the traffic information dissemination device and / or the information collected by the road information collection device through the roadside base station.

[0022] The following detailed description, with reference to the accompanying drawings, outlines some embodiments of the access authentication method for the device of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0023] Please refer to Figure 1 and Figure 2 , Figure 1 A flowchart illustrating the steps of a device access authentication method provided in an embodiment of this application. Figure 2 This is a flowchart of an access authentication method for a device provided in an embodiment of this application.

[0024] like Figure 1 As shown, the access authentication method of this device includes steps S101 to S104.

[0025] Step S101: Obtain the connection request information sent by the vehicle terminal.

[0026] For example, when the vehicle terminal needs to obtain information obtained by the traffic information publishing device and / or the road information collection device, it sends a connection request information to the roadside base station so that the roadside base station can establish a communication connection with the vehicle terminal based on the connection request information and can send the information obtained by the traffic information publishing device and / or the road information collection device to the vehicle terminal so that the vehicle terminal can obtain the required information.

[0027] Understandably, roadside base stations communicate with traffic information dissemination equipment and / or road information collection equipment. Thus, vehicle-mounted terminals only need to establish a communication connection with the roadside base station to obtain information from the traffic information dissemination equipment and / or road information collection equipment, thereby avoiding connections with multiple roadside devices, increasing communication stability, and reducing communication latency.

[0028] For example, the road test equipment can determine whether the vehicle terminal meets the linking conditions based on the connection request information, so as to determine whether to establish a communication connection with the vehicle terminal.

[0029] In the specific implementation process, connection request information sent by vehicle-mounted terminals entering the target range is obtained. For example, the target range is determined by using the target location in the block as the center point and a preset length as the radius. This target range is then used to obtain connection request information sent by vehicle-mounted terminals within the target range, thereby enabling communication with vehicle-mounted terminals within the target range and increasing communication stability.

[0030] Step S102: When the connection request information meets the connection conditions, establish a communication connection with the vehicle terminal.

[0031] For example, the roadside base station can determine whether the connection conditions are met based on the connection request information, and when the connection request information meets the connection conditions, the roadside base station can create an authentication management object and establish a communication connection with the vehicle terminal.

[0032] In some embodiments, the connection request information includes the type and / or name of the vehicle terminal; the method further includes: determining whether the vehicle terminal meets the connection conditions based on the type and / or name of the vehicle terminal.

[0033] For example, the roadside base station obtains the type and / or name of the vehicle terminal from the connection request information, and determines whether there is type information with the same type as the vehicle terminal in the type storage database, and determines whether there is name information with the same name as the vehicle terminal in the name database. If the same type information and the same name information are found, the vehicle terminal is determined to meet the linking conditions and a communication connection is established; if the same type information or the same name information is not found, the vehicle terminal is determined to not meet the linking conditions and the roadside base station refuses to communicate with the vehicle terminal.

[0034] Understandably, after confirming that the connection conditions are met and a communication connection is established with the vehicle terminal, it is able to obtain the information acquisition request sent by the vehicle terminal in order to send the corresponding information to the vehicle terminal.

[0035] Step S103: When an information acquisition request is received from the vehicle terminal, and it is determined from the information acquisition request that the vehicle terminal meets the key creation conditions, a target key is created.

[0036] For example, based on the information acquisition request, it is determined whether the vehicle terminal meets the key creation conditions, and when it is determined whether the vehicle terminal meets the key creation conditions, the corresponding target key is created.

[0037] In some embodiments, when determining whether the vehicle terminal meets the key creation conditions based on the information acquisition request, the method further includes: determining the security level of the vehicle terminal based on the type and / or name of the vehicle terminal; and determining whether the vehicle terminal meets the key creation conditions based on the security level and the information acquisition request.

[0038] For example, based on a security classification database, the security level of an in-vehicle terminal is determined according to its type and / or name. For instance, if the in-vehicle terminal is type A, the corresponding security level is determined to be level two; similarly, if the in-vehicle terminal is type B, the corresponding security level is determined to be level four. Understandably, the security level of an in-vehicle terminal can also be determined based on the mapping relationship between its name and security level, which will not be elaborated upon here.

[0039] In some embodiments, determining whether the vehicle terminal meets the key creation conditions based on the confidentiality level and the information acquisition request includes: when the confidentiality level is greater than a preset level, determining whether the vehicle terminal meets the key creation conditions based on the information acquisition request.

[0040] Understandably, if the security level is higher than the preset level, the system will determine whether the vehicle terminal meets the key creation conditions based on the information acquisition request. For example, if the preset level is the third level and the importance of the first, second, third and fourth levels decreases in that order, the system will determine whether the vehicle terminal meets the key creation conditions based on the information acquisition request sent by the vehicle terminal if the security level is the second level.

[0041] In other embodiments, when the security level is less than or equal to a preset level, it is determined that the vehicle terminal does not meet the key creation conditions.

[0042] For example, if the preset security level is level three and the security level of the vehicle terminal is level four, it is determined that the vehicle terminal does not meet the key creation conditions and no key needs to be created.

[0043] By determining whether the vehicle terminal meets the key creation conditions based on its security level, the speed of determining whether key creation is needed is improved. After determining that the vehicle terminal meets the key creation conditions based on its security level, the determination of whether key creation is needed is made again based on the information acquisition request sent by the vehicle terminal.

[0044] In some embodiments, when an information acquisition request sent by the vehicle terminal is received, and it is determined that the vehicle terminal meets the key creation conditions based on the information acquisition request, a target key is created, including: determining the communication duration and communication data volume of the vehicle terminal based on the information acquisition request; and creating the target key when it is determined that the vehicle terminal meets the key creation conditions based on the communication duration and communication data volume.

[0045] For example, the communication duration required between the roadside base station and the vehicle terminal, as well as the amount of communication data during communication between the roadside base station and the vehicle terminal, are determined from the information acquisition request. It is understood that the amount of communication data can be a predicted amount of data. For example, if the information acquisition request includes obtaining traffic information of the target road segment, after the roadside base station obtains the size of the historical traffic information sent during the historical communication process, it predicts the amount of communication data required for this communication based on the size of the historical traffic information in order to determine whether the vehicle terminal meets the key creation conditions.

[0046] In some embodiments, determining that the vehicle terminal meets the key creation conditions based on the information acquisition request includes: if the communication duration determined according to the information acquisition request is greater than or equal to a preset duration, and the communication data volume determined according to the information acquisition request is greater than a preset first data volume threshold and less than a preset second data volume threshold, then determining that the vehicle terminal meets the first key creation conditions.

[0047] For example, the key creation conditions that the vehicle terminal meets are determined based on the comparison results of the communication duration and the preset duration, and the comparison results of the communication data volume and the first data volume threshold.

[0048] Specifically, if the communication duration is greater than the preset duration and the communication data volume is greater than the first data volume threshold but less than the second data volume threshold, the vehicle terminal is determined to meet the first key creation conditions.

[0049] In some embodiments, when an information acquisition request is received from the vehicle terminal and it is determined from the information acquisition request that the vehicle terminal meets the key creation conditions, a target key is created, including: if it is determined from the information acquisition request that the vehicle terminal meets the first key creation conditions, an asymmetric key is created.

[0050] For example, when the vehicle terminal meets the conditions for creating the second key, the asymmetric key can achieve the purpose of easy management, and in this case, there is no need for a large amount of data transmission and storage, thus enabling the creation of an asymmetric key. Optionally, the asymmetric key includes a public / private key pair.

[0051] In other embodiments, determining that the vehicle terminal meets the key creation conditions based on the information acquisition request includes: if the communication duration is greater than or equal to a preset duration and the communication data volume is greater than a preset second data volume threshold, determining that the vehicle terminal meets the second key creation conditions.

[0052] For example, when the communication duration exceeds the preset duration and the communication data volume exceeds the second data volume threshold, it is determined that the vehicle terminal needs to transmit a large amount of data with the roadside base station, and the vehicle terminal meets the second key creation conditions.

[0053] In some embodiments, when an information acquisition request sent by the vehicle terminal is received, and it is determined from the information acquisition request that the vehicle terminal meets the key creation conditions, a target key is created, including: if it is determined from the information acquisition request that the vehicle terminal meets the second key creation conditions, a symmetric key is created.

[0054] For example, if the vehicle-mounted terminal meets the conditions for creating the first key, the symmetric key can meet the needs of large-scale data transmission and storage, thus a symmetric key is created. Optionally, a symmetric key encryption algorithm such as DES, 3DES, or IDEA is used to create the symmetric key.

[0055] Understandably, if the communication duration is less than the preset duration or the communication data volume is less than the first data volume threshold, it is determined that the vehicle terminal does not meet the key creation conditions and no key needs to be created.

[0056] Through the above embodiments, different keys can be created according to different situations, thereby improving the security and efficiency of communication.

[0057] Step S104: When the key request information sent by the vehicle terminal is obtained, the target key is sent to the vehicle terminal.

[0058] Understandably, when the roadside base station receives the key request information from the vehicle-mounted terminal, it will send the created target key to the vehicle-mounted terminal. If it does not receive the key request information from the vehicle-mounted terminal, it will not send the target key.

[0059] Step S105: Encrypt the information obtained from the traffic information publishing device and / or the road information collecting device, and send the information to the vehicle terminal so that the vehicle terminal can decrypt the information according to the target key.

[0060] For example, the roadside base station encrypts information obtained from traffic information dissemination equipment and / or road information collection equipment and sends it to the vehicle terminal so that the vehicle terminal can decrypt the information according to the target key.

[0061] Understandably, the information can be sent to the vehicle terminal simultaneously with the target key, or the information can be sent first, and the target key can be sent to the vehicle terminal after receiving the key request information from the vehicle terminal, so that the vehicle terminal can decrypt the information. The information acquired by the traffic information dissemination equipment may be, for example, road construction information, while the information acquired by the road information collection equipment may be, for example, road condition information.

[0062] In one embodiment, the roadside base station can acquire information from traffic information dissemination equipment and / or road information collection equipment in real time. When it receives an information acquisition request from the vehicle terminal and the vehicle terminal meets the key creation conditions, it creates a target key, encrypts the target key and the corresponding information, and sends it to the vehicle terminal.

[0063] In other embodiments, encrypting information obtained from traffic information publishing devices and / or road information collecting devices and sending the information to the vehicle terminal includes: obtaining information to be encrypted from traffic information publishing devices and / or road information collecting devices according to an information acquisition request; encrypting the information to be encrypted and sending it to the vehicle terminal.

[0064] Understandably, roadside base stations can also respond to information acquisition requests sent by vehicle-mounted terminals, acquire the information to be encrypted corresponding to the information acquisition request from traffic information dissemination equipment and / or road information collection equipment, and encrypt the information to be encrypted before sending it to the vehicle-mounted terminal.

[0065] The access authentication method for roadside base station devices provided in the above embodiments establishes a communication connection with the vehicle-mounted terminal when it receives connection request information sent by the vehicle-mounted terminal and the connection request information meets the connection conditions. It can also create a target key when it receives an information acquisition request sent by the vehicle-mounted terminal and determines that the vehicle-mounted terminal meets the key creation conditions based on the information acquisition request. When it receives a key request information sent by the vehicle-mounted terminal, it sends the target key to the vehicle-mounted terminal. The roadside base station can also encrypt information obtained from traffic information publishing devices and / or road information collection devices and send it to the vehicle-mounted terminal in response to the information acquisition request. This allows the vehicle-mounted terminal to encrypt the information according to the target key, thereby avoiding communication connections between the vehicle-mounted terminal and multiple traffic information publishing devices and / or road information collection devices, improving the stability and efficiency of the communication connection, and reducing communication latency. Simultaneously, the roadside base station can also authenticate the accessing vehicle-mounted terminals, enhancing communication security.

[0066] Please see Figure 3 , Figure 3 This is a schematic block diagram of the structure of a roadside base station provided in an embodiment of this application.

[0067] like Figure 3 As shown, the roadside base station includes a processor, a memory, and a network interface connected via a system bus, wherein the memory may include a storage medium and internal memory.

[0068] The storage medium may store an operating system and a computer program. The computer program includes program instructions that, when executed, cause the processor to perform any device access authentication method.

[0069] The processor provides computing and control capabilities to support the operation of the entire roadside base station.

[0070] Internal memory provides an environment for the execution of computer programs stored in the storage medium. When these computer programs are executed by the processor, the processor can perform any access authentication method for the device.

[0071] This network interface is used for network communication, such as communicating with an in-vehicle terminal and enabling information exchange. Those skilled in the art will understand that... Figure 3 The structure shown is merely a block diagram of a portion of the structure related to the solution of this application and does not constitute a limitation on the roadside base station on which the solution of this application is applied. A specific roadside base station may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0072] It should be understood that the processor can be a Central Processing Unit (CPU), but it can also be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Among these, a general-purpose processor can be a microprocessor or any conventional processor.

[0073] Please see Figure 4 , Figure 4 This is a schematic diagram of a road test system provided in an embodiment of this application.

[0074] like Figure 4As shown, the road testing system includes a roadside base station 1; at least one traffic dissemination device 2 and / or at least one road information collection device 3. The roadside base station can connect to the traffic information dissemination device via a distributed main flexible cable 4.

[0075] The device 2 and / or the road information collection device 3 interact to obtain information from the traffic information dissemination device 25 and / or the road information collection device 3. The distributed soft bus 4 is a bus that provides unified distributed communication capabilities for interconnection between different devices, possessing functions such as discovery, connection, network / topology management, task bus, and data bus. Both the traffic dissemination device 2 and the road information collection device 3 can be configured with the HarmonyOS system and are equipped with the distributed soft bus 4, allowing for communication between the HarmonyOS systems of each device.

[0076] Communication can be established through a distributed soft bus 4, thereby enabling functions such as resource integration, data sharing, and 0 function sharing.

[0077] Among these, the distributed soft bus also proposes a Bluetooth / WiFi converged network technology, which can solve the problem of data communication between devices with different protocols or provide corresponding technologies in different scenarios to enhance the applicability of the road test system. For example, in scenarios where WiFi signals are weak, such as tunnels or underground parking garages,

[0078] The road test system can connect to each other via Bluetooth and connect to the vehicle terminal via Bluetooth to achieve information exchange. Simultaneously, the Bluetooth / WiFi converged network technology enables multiple HarmonyOS devices to automatically build a logically fully connected network. Users or business developers do not need to worry about the networking method and physical protocol. Furthermore, this technology can connect and control multiple existing devices, is compatible with lightweight and standard devices, and can reduce most of the cost associated with setting up cables and specialized equipment. It allows for flexible use of various devices to jointly build a barrier against theft and for security.

[0079] 0. Understandable, if new traffic information dissemination devices and / or road information collection devices are connected.

[0080] In some cases, communication can also be established through distributed main flexible cable to improve the convenience of device access.

[0081] This application also provides a computer-readable storage medium storing a computer program, the computer program including program instructions, and the method implemented when the program instructions are executed can refer to various embodiments of the access authentication method of the device of this application.

[0082] 5. The computer-readable storage medium may be an internal storage unit of the roadside base station described in the foregoing embodiments, such as a hard disk or memory of the roadside base station. The computer-readable storage medium may also be an external storage device of the roadside base station, such as a plug-in hard disk, smart media card (SMC), secure digital (SD) card, flash card, etc., equipped on the roadside base station.

[0083] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the application. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0084] It should also be understood that the term "and / or" as used in this specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes such combinations. It should be noted that, herein, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or system that includes that element.

[0085] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above descriptions are merely specific implementations of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this application, and these modifications or substitutions should all be covered within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method of access authentication of a device, characterized by, The method for a road side base station connected with a traffic information publishing device and / or a road information collecting device, comprising: acquiring connection request information sent by a vehicle terminal, wherein the connection request information comprises a type of the vehicle terminal and / or a name of the vehicle terminal; determining whether the vehicle terminal meets a connection condition according to the type of the vehicle terminal and / or the name of the vehicle terminal; establishing a communication connection with the vehicle terminal when the vehicle terminal meets the connection condition; acquiring an information acquisition request sent by the vehicle terminal, and determining a communication duration and a communication data volume of the vehicle terminal according to the information acquisition request; creating a target key when it is determined that the vehicle terminal meets a key creation condition according to the communication duration and the communication data volume; sending the target key to the vehicle terminal when a key request information sent by the vehicle terminal is acquired; encrypting information acquired from the traffic information publishing device and / or the road information collecting device, and sending the information to the vehicle terminal, so that the vehicle terminal decrypts the information according to the target key.

2. The access authentication method of a device according to claim 1, wherein, The creating a target key when it is determined that the vehicle terminal meets a key creation condition according to the communication duration and the communication data volume comprises: creating an asymmetric key when it is determined that the vehicle terminal meets a first key creation condition according to the communication duration and the communication data volume; creating a symmetric key when it is determined that the vehicle terminal meets a second key creation condition according to the communication duration and the communication data volume.

3. The access authentication method of the device according to claim 2, wherein, The determining that the vehicle terminal meets a key creation condition according to the communication duration and the communication data volume comprises: determining that the vehicle terminal meets the first key creation condition when the communication duration is greater than or equal to a preset duration, and the communication data volume is greater than a preset first data volume threshold and less than a preset second data volume threshold; determining that the vehicle terminal meets the second key creation condition when the communication duration is greater than or equal to the preset duration, and the communication data volume is greater than the preset second data volume threshold.

4. The access authentication method of the device according to any one of claims 1 to 3, characterized in that, The encrypting information acquired from the traffic information publishing device and / or the road information collecting device, and sending the information to the vehicle terminal comprises: acquiring to-be-encrypted information from the traffic information publishing device and / or the road information collecting device according to the information acquisition request; encrypting the to-be-encrypted information and sending the to-be-encrypted information to the vehicle terminal.

5. The access authentication method of the device according to claim 1, wherein, The method further comprises: determining a security level of the vehicle terminal according to the type of the vehicle terminal and / or the name of the vehicle terminal; determining whether the vehicle terminal meets a key creation condition according to the security level and the information acquisition request.

6. The access authentication method of the device according to claim 5, wherein, The determining whether the vehicle terminal meets a key creation condition according to the security level and the information acquisition request comprises: determining whether the vehicle terminal meets the key creation condition according to the information acquisition request when the security level is greater than a preset level; determining that the vehicle terminal does not meet the key creation condition when the security level is less than or equal to the preset level.

7. A road side base station, characterized by, The roadside base station is capable of being in communication connection with the vehicle terminal, and the roadside base station comprises a processor, a memory, and a computer program stored in the memory and executable by the processor, wherein when the computer program is executed by the processor, the steps of the access authentication method of the device according to any one of claims 1 to 6 are implemented.

8. A drive test system, characterized by The road test system comprises a roadside base station, and a traffic information publishing device and / or a road information collecting device, the roadside base station is in communication connection with the traffic information publishing device and / or the road information collecting device, and the roadside base station is in communication connection with the vehicle terminal according to the steps of the access authentication method of the device according to any one of claims 1 to 6, so as to send information acquired from the traffic information publishing device and / or the road information collecting device to the vehicle terminal.

9. A computer-readable storage medium, characterized in that, The computer readable storage medium stores a computer program, wherein when the computer program is executed by the processor, the steps of the access authentication method of the device according to any one of claims 1 to 6 are implemented.

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