CN116434558A - Special vehicle identity recognition method and system - Google Patents

Abstract

The road side assisted passing equipment in the V2X system acquires a special vehicle identification request which is sent by a special vehicle and comprises a unique special vehicle identifier and signature information of the special vehicle, performs signature verification on the signature information based on a vehicle digital certificate of the special vehicle, and determines that the identity of the special vehicle is legal if the signature information passes the signature verification. According to the technical scheme provided by the embodiment of the invention, the special vehicle identification request is acquired by means of the V2X technology, and the special vehicle identification request is checked by using the vehicle digital certificate, so that the special vehicle can be accurately identified based on the digital certificate mechanism, the situation that the fake license plate and the fake license plate special vehicle acquire the road priority is avoided, and the special vehicle can be ensured to pass preferentially.

Description

A special vehicle identification method and system

technical field

The embodiment of the present invention relates to the field of communication technology, and in particular to a method and system for identifying a special vehicle identity.

Background technique

Special vehicles refer to vehicles that undertake special duties and hang special vehicle license plates, and are equipped with sirens and sign lamps. Special vehicles generally have special signs or special models, such as ambulances, fire trucks, police cars, engineering rescue vehicles, military supervision vehicles, etc. When special vehicles perform special tasks, they have the right of priority on the road, and road operators should give special vehicles the right of priority.

With more and more special vehicles running on the road, in order to ensure the efficient operation of special vehicles on limited road resources, it is first necessary to identify special vehicles. In existing schemes, special vehicles are mainly identified and controlled through special vehicle license plates and colors, which can easily cause fake or fake special vehicles to obtain road priority, resulting in a waste of road resources.

Therefore, how to accurately identify special vehicles and ensure the priority of special vehicles is an urgent problem to be solved.

Contents of the invention

The embodiments of the present invention aim to solve one of the technical problems in the related art at least to a certain extent.

For this reason, the embodiment of the present invention discloses a special vehicle identification method and system.

In the first aspect, the embodiment of the present invention provides a special vehicle identification method, which is applied to the roadside assistance device in the V2X system, including: acquiring a special vehicle identification request issued by the special vehicle; wherein, the special vehicle identification The request includes: the unique identifier of the special vehicle and the signature information of the special vehicle; the signature information is verified based on the vehicle digital certificate of the special vehicle; wherein, the vehicle digital certificate is obtained according to the unique identifier of the special vehicle certificate; if the signature information is verified and passed, it is determined that the identity of the special vehicle is legal.

In a specific embodiment of the first aspect, verifying the signature information based on the vehicle digital certificate of the special vehicle includes: sending the special vehicle identification request to the application certificate authority ACA or the special vehicle management platform ; Receive the signature verification result of the signature information verified by the ACA or the special vehicle management platform based on the vehicle digital certificate.

In a specific embodiment of the first aspect, verifying the signature information based on the vehicle digital certificate of the special vehicle includes: sending the unique identifier of the special vehicle to the application certificate authority ACA or the special vehicle management platform ; receiving the vehicle digital certificate fed back by the ACA or the special vehicle management platform based on the unique identifier of the special vehicle; using the vehicle digital certificate to verify the signature information.

In a specific embodiment of the first aspect, the method further includes: acquiring special vehicle exterior feature information corresponding to the special vehicle unique identifier; wherein, the special vehicle exterior feature information is located in the special vehicle identification request , or, obtain the external feature information of the special vehicle from the special vehicle management platform according to the vehicle unique identifier; obtain the external feature identification information of the special vehicle through the roadside sensing device; Whether the vehicle’s external feature information is consistent; if the signature information is verified, it is determined that the identity of the special vehicle is legal, including: if the signature information is verified, and the external feature identification information is consistent with the special vehicle’s exterior If the feature information is consistent, it is determined that the identity of the special vehicle is legal.

In a specific embodiment of the first aspect, judging whether the external feature identification information is consistent with the special vehicle external feature information includes: if each external feature in the external feature identification information is consistent with the special vehicle external feature If the corresponding external features in the information are consistent, it is determined that the external feature identification information is consistent with the special vehicle external feature information; otherwise, it is determined that the external feature identification information is inconsistent with the special vehicle external feature information.

In a specific embodiment of the first aspect, the method further includes: if there are external features that are not included in the external feature identification information in the special vehicle external feature information, defaulting that the missing external features are consistent .

In a specific embodiment of the first aspect, the method further includes: if the verification of the signature information fails, sending a warning message to the special vehicle.

In a specific embodiment of the first aspect, obtaining the special vehicle identification request issued by the special vehicle includes: obtaining the special vehicle identification request issued by the special vehicle when performing a special task; wherein the special vehicle identification request further includes: the special task unique identification; the method further includes: if the identity of the special vehicle is legal, inquiring whether there is a special task corresponding to the unique identifier of the special task.

In a specific embodiment of the first aspect, the method further includes: after determining that the identity of the special vehicle is legal, sending the unique identifier of the special vehicle to a special vehicle management platform, so that the special vehicle management platform Monitor special vehicles running on the road.

In a specific embodiment of the first aspect, the application method for the vehicle digital certificate is as follows: the institution to which the special vehicle belongs sends the vehicle information of the special vehicle to the application registration authority ARA; The special vehicle registers a digital identity, and sends the digital identity to the application certification authority ACA; the ACA obtains the vehicle digital certificate based on the digital identity.

In the second aspect, the embodiment of the present invention also discloses a roadside assisting passing device in a V2X system, the roadside assisting passing device is used to execute the special vehicle identification method described in any one of the first aspect.

In the third aspect, the embodiment of the present invention also discloses a special vehicle identity recognition system, including: the organization to which the special vehicle belongs, the application registration authority ARA, the application certification authority ACA, and the roadside assisting equipment in the V2X system; The institution to which the vehicle belongs is used to send the vehicle information of the special vehicle to the ARA; the ARA is used to register a digital identity for the special vehicle based on the vehicle information, and send the digital identity to the ACA; the ACA It is used to obtain a vehicle digital certificate based on the digital identity; and the roadside assistance device is used to implement the special vehicle identification method described in any one of the first aspects.

The beneficial effect of the embodiment of the present invention:

The embodiment of the present invention provides a special vehicle identity recognition method, system, and roadside assisted passing equipment. The roadside assisted passing equipment in the V2X system obtains the special vehicle issued by the special vehicle, including the unique identification of the special vehicle and the signature information of the special vehicle. Identify the request, and verify the signature information based on the vehicle digital certificate of the special vehicle. If the signature information passes the verification, it is determined that the identity of the special vehicle is legal. According to the technical solution of the embodiment of the present invention, by means of V2X technology, the special vehicle identification request is obtained, and the vehicle digital certificate is used to verify the signature of the special vehicle identification request, so that the special vehicle can be accurately identified based on the digital certificate mechanism, avoiding the need for cards and Fake special vehicles get road priority, which can guarantee the priority of special vehicles.

Description of drawings

Fig. 1 is a schematic flow chart of a special vehicle identification method provided by an embodiment of the present invention;

Fig. 2 is a schematic flow chart of verifying signature information provided by an embodiment of the present invention;

Fig. 3 is a schematic flow chart of another special vehicle identification method provided by an embodiment of the present invention;

Fig. 4 is a schematic structural diagram of a special vehicle identification system provided by an embodiment of the present invention.

Detailed ways

In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of embodiments of the present invention, but not all embodiments. All other embodiments obtained by persons of ordinary skill in the art based on the technical concept of the embodiments of the present invention belong to the protection scope of the present invention.

For the convenience of understanding, firstly, the execution subjects and interacting parties that may be used in each embodiment of the present invention are described:

The roadside assisting equipment is a device located at the roadside to directly interact with special vehicles and assist in passing, and it is located in the V2X (vehicle to everything) system. In practical applications, the roadside traffic assistance equipment may include one or more of: Road Side Unit (Road Side Unit, RSU for short), Edge Computing Unit (ECU for short), etc.

In some embodiments, the roadside assisting device may also include a roadside sensing device, which is used to sense the external features of the special vehicle. In practical applications, the roadside sensing device may include one or more of devices capable of sensing external features of special vehicles, such as cameras, millimeter-wave radars, and lidars. In particular, in some implementations, the roadside sensing device can also be integrated with RSU, ECU and other devices or units as a whole.

The Application Certificate Authority (ACA) for special vehicles is a certificate generation and issuing authority, and can support the certification service of vehicle digital certificates. Wherein, the specific digital certificate mechanism can refer to the prior art, and will not be repeated here.

The special vehicle management platform is used to manage the vehicle digital certificates of special vehicles. In practical applications, the special vehicle management platform communicates with the roadside assistance equipment in the V2X system to provide corresponding services to the roadside assistance equipment in the V2X system. Among them, it needs to be further explained that the special vehicle management platform can be a component of the V2X system, or it can be independent of the information platform of the V2X system.

The institution to which the special vehicle belongs refers to the institution or department that owns the ownership of the special vehicle, such as a hospital, a public security department, a fire department, etc. More specifically, the institutions to which special vehicles belong are the information platforms of these institutions or departments for issuing special missions and registering special vehicles. Special missions refer to the missions assigned by the agencies to which special vehicles belong and performed by special vehicles.

The Application Registration Authority (ARA) for special vehicles is a platform that provides services such as information entry and review of special vehicles. In practical application, ARA can be the information platform of the supervision department of special vehicles, for example, it can be the information platform of the Safety Supervision Bureau.

Obviously, the implementation of the embodiments of the present invention requires the cooperation of the V2X system. Regarding how the V2X system realizes data communication between vehicles and between vehicles and surrounding objects, and how the V2X system assists the passage of intelligent networked vehicles, etc., please refer to the prior art, and will not repeat them here.

It should be noted that each embodiment of the present invention does not necessarily use all the execution subjects and interacting parties listed above. Through the subsequent introduction to each embodiment, it can be seen that for a certain embodiment, only Some execution subjects and interactors are required. Of course, in some possible embodiments, all executive subjects and interacting parties need to participate.

Further, in some specific implementations, the organization of special vehicles, ARA, ACA and special vehicle management platform can be computer equipment such as personal computers and servers in terms of hardware representation, and these computer equipment have computing power, storage and memory functions and communication Function. Special vehicle affiliates, ARA, ACA and special vehicle management platform can also apply for or issue their own digital certificates for identity authentication and verification during interaction.

The technical concept of the embodiment of the present invention is described below: First, the inventor found in the process of realizing the embodiment of the present invention that using the license plate and color of the special vehicle to identify and control the special vehicle may easily cause false cards and fake cards. Special vehicles get road priority. Secondly, by understanding the digital certificate mechanism, the inventor found that the digital certificate mechanism can provide reliable identity authentication for special vehicles, and the emergence of V2X technology provides the possibility to realize the identification of special vehicles through the digital certificate mechanism. On this basis, the inventor thinks of sending a special vehicle identification request to the V2X system through the special vehicle, and uses a digital certificate mechanism to realize the identification of the special vehicle. Utilizing the technical solution of the embodiment of the present invention, special vehicles can be accurately identified, avoiding the right of road priority for special vehicles with counterfeit licenses and special vehicles, ensuring priority passage of special vehicles, and avoiding waste of road resources.

After explaining the executors and interacting parties of the embodiments of the present invention, as well as the technical concept, the following is a more detailed description of the embodiments of the present invention in conjunction with the accompanying drawings:

Referring to FIG. 1 , it is a schematic flowchart of a special vehicle identification method provided by an embodiment of the present invention. The special vehicle identification method is applied to the roadside assisting traffic equipment in the V2X system. Specifically, the method shown in Figure 1 includes:

In step S101, a special vehicle identification request issued by a special vehicle is obtained.

Wherein, the special vehicle identification request may include: the unique identification of the special vehicle and the signature information of the special vehicle.

In practical applications, the unique identifier of a special vehicle may be an identifier or symbol that has a unique correspondence with the special vehicle, such as the chassis number and engine number. The signature information of the special vehicle is obtained by using the private key corresponding to the public key of the special vehicle on the vehicle digital certificate of the special vehicle to sign (that is, encrypt) the request content in the special vehicle identification request. Among them, the vehicle digital certificate is obtained through application in advance, and the special vehicle public key can be the public key in the asymmetric key generated by the special vehicle, or it can be the identity information in the identity-based signature mechanism.

Further, in some implementations, the way to apply for a vehicle digital certificate may be as follows: the institution to which the special vehicle belongs sends the vehicle information of the special vehicle to the application registration authority ARA; ARA registers the digital identity for the special vehicle based on the vehicle information, and sends the digital identity to To the application certification authority ACA; ACA obtains the vehicle digital certificate based on the digital identity. Among them, the vehicle information should at least include the unique identification of the special vehicle, the public key of the special vehicle and the external characteristic information of the special vehicle. Usually, the vehicle information may also include the unit to which the special vehicle belongs, the license plate of the special vehicle and the category of the special vehicle. More specifically, the external feature information of special vehicles is used to characterize the external features of special vehicles that can be recognized by human eyes or various sensors, such as color, shape and other features. In some implementations, the external characteristic information of the special vehicle may also include information such as the license plate of the special vehicle. The units to which special vehicles belong and the license plates of special vehicles can be used for the management and information tracking of special vehicles; according to the different types of special vehicles, the roadside assisting traffic equipment can carry out different coordinated traffic, or the roadside assisting traffic equipment can be Different special vehicles are assigned priority.

Specifically, ARA adds part or all of the vehicle information to the digital identity of a special vehicle. Generally, the digital identity may include: a unique identifier of a special vehicle and a public key of a special vehicle. In some implementations, the digital identity may also include: one or more of special vehicle exterior feature information, special vehicle license plate, ARA identification and other information. After the ACA obtains the digital identity, it adds information such as the identity of the ACA to the digital identity to obtain the certificate content of the vehicle digital certificate. On this basis, ACA uses its private key to sign the content of the certificate to obtain the vehicle digital certificate.

It should be noted that the way to apply for a vehicle digital certificate is not limited to the above-mentioned ways. For example, in some implementations, a special vehicle may send its own vehicle information to ACA, and ACA will issue a vehicle digital certificate based on the vehicle information. In some other implementations, the organization to which the special vehicle belongs may also directly send the vehicle information to the ACA, and the ACA issues the vehicle digital certificate based on the vehicle information.

In addition, referring to the signature mechanism in the prior art, usually, considering the integrity of the information and the speed of operation, what is directly encrypted by the private key is usually a summary of the original text of the information. Correspondingly, in some implementations of the embodiments of the present invention, in order to ensure the integrity and calculation speed of the special vehicle identification request, it is also possible to first calculate the hash value of the request content in the special vehicle identification request to obtain the digest, Then use the private key corresponding to the public key of the special vehicle to sign the obtained digest. Certainly, when the request content in the special vehicle identification request is less, the request content itself may also be directly encrypted.

It should also be noted that in step S101, the special vehicle identification request can be directly sent by the special vehicle to the roadside traffic assistance device, or can be forwarded to the roadside traffic assistance device by other devices such as connected cars with V2X communication capabilities. of. Among them, in practical applications, the special vehicle identification request is generally sent in the form of broadcast.

In step S102, the signature information is verified based on the vehicle digital certificate of the special vehicle.

Specifically, the vehicle digital certificate contains the unique identification of the special vehicle. Therefore, the vehicle digital certificate can be obtained according to the unique identification of the special vehicle, and then the signature information can be verified by using the special vehicle public key in the vehicle digital certificate, that is, the signature verification of the special vehicle identification request. In practical applications, there are many sources of vehicle digital certificates and ways of verifying signatures. The following example illustrates:

Referring to FIG. 2, in some implementations, step S102 may include:

In step S1021, the special vehicle identification request is sent to ACA or the special vehicle management platform.

In step S1022, receive the signature verification result of the signature information verified by the ACA or the special vehicle management platform based on the vehicle digital certificate.

Among them, the results of the verification of the ACA or the special vehicle management platform are divided into whether the verification is passed or the verification is not passed.

In some other implementations, step S102 may include: sending the unique identifier of the special vehicle to the application certificate authority ACA or the special vehicle management platform, receiving the vehicle digital certificate fed back by the ACA or the special vehicle management platform based on the unique identifier of the special vehicle, using the vehicle digital The certificate verifies the signed information.

In particular, in some embodiments, the vehicle digital certificate can also be added to the special vehicle identification request, and the signature information can be verified directly using the vehicle digital certificate in the special vehicle identification request. Even when the organization of the special vehicle assigns special tasks to the special vehicle, it can send the unique identification of the special vehicle to the special vehicle management platform. After receiving the unique identification of the special vehicle, the special vehicle management platform will actively send the corresponding vehicle digital certificate to the road Side assist device.

Wherein, the vehicle digital certificate in the special vehicle can be obtained from the ACA, and the vehicle digital certificate in the special vehicle management platform can also be obtained from the ACA, but the embodiment of the present invention is not limited thereto. For example, in some implementations, ACA can send the vehicle digital certificate to ARA, and then ARA forwards it to the special vehicle management platform and the organization that owns the special vehicle. The organization that owns the special vehicle quantity will import the vehicle digital certificate to the encryption module inside the special vehicle middle. The cryptographic module here is a device or software module that stores sensitive parameters and has a cryptographic algorithm. The forms of the cryptographic module include but are not limited to USBKey, security chip, software cryptographic module, etc.

Furthermore, in practical applications, when the vehicle digital certificate in ACA is updated (such as new addition, revocation, etc.), update information is usually sent to the relevant parties on a regular basis, which may cause the certificates of the relevant parties to be revoked, but the relevant parties Revocation information has not been retrieved. Therefore, relatively speaking, the signature verification scheme participated by ACA has stronger reliability.

In step S103, if the verification of the signature information passes, it is determined that the identity of the special vehicle is legal.

Specifically, if the signature information verification is successful, it indicates that the special vehicle identification request is encrypted by the private key corresponding to the public key of the special vehicle, and the private key corresponding to the public key of the special vehicle is only owned by the special vehicle itself. Therefore, it can be determined that the special vehicle The identification request is sent by a special vehicle, and it can be determined that the identity of the special vehicle is legal. It is obvious that, like the existing digital certificate mechanism, the signature verification process includes: after the special vehicle public key decrypts the signature information, the decrypted information will be compared with the plaintext in the special vehicle identification request to confirm whether the special vehicle identification request has been If it has been tampered with or has not been tampered with, the signature will be verified.

Usually, when the signature information of a special vehicle passes the verification, the roadside assistance equipment will assist the special vehicle to pass first. How roadside assisted traffic equipment assists special vehicles in cooperative priority traffic does not involve the technical concept of the embodiment of the present invention. The specific cooperative strategy can be green wave, early obstacle clearance and other existing technologies or future technology solutions, which will not be repeated here. .

The embodiment of the present invention provides a special vehicle identification method. The roadside assistance equipment in the V2X system obtains the special vehicle identification request issued by the special vehicle, including the unique identification of the special vehicle and the signature information of the special vehicle, and performs the signature information based on The signature verification of the vehicle digital certificate of the special vehicle, if the signature information verification is passed, it is determined that the identity of the special vehicle is legal. According to the technical solution of the embodiment of the present invention, by means of V2X technology, the special vehicle identification request is obtained, and the vehicle digital certificate is used to verify the signature of the special vehicle identification request, so that the special vehicle can be accurately identified based on the digital certificate mechanism, avoiding the need for cards and Fake special vehicles get road priority, which can guarantee the priority of special vehicles.

Further, referring to Fig. 3, on the basis of the embodiment shown in Fig. 1, the special vehicle identification method may also include:

In step S104, the external feature information of the special vehicle corresponding to the unique identifier of the special vehicle is obtained.

Wherein, in some implementations, the special vehicle external feature information may be located in the special vehicle identification request. At this time, the special vehicle external feature information can be obtained directly after analyzing the special vehicle identification request.

In some other implementations, the roadside traffic assistance device can obtain the external feature information of the special vehicle from the special vehicle management platform according to the unique vehicle identifier. Specifically, after receiving the special vehicle identification request, the roadside traffic assistance device sends the unique identification of the special vehicle to the special vehicle management platform, and the special vehicle management platform queries the corresponding vehicle information based on the unique identification of the special vehicle. Feedback information on the external characteristics of special vehicles to the roadside assistance equipment. Wherein, the vehicle information in the special vehicle management platform may come from the ARA, for example, after receiving the vehicle digital certificate, the ARA sends the vehicle digital certificate and the vehicle information to the special vehicle management platform.

In step S105, the external feature recognition information of the special vehicle is obtained through the roadside sensing device.

Specifically, after the roadside sensing device obtains the image information of the special vehicle, it uses the pre-trained machine learning algorithm to obtain the external feature recognition information of the special vehicle. It can be understood that the external features of special vehicles marked during machine learning algorithm training are the same as the external features of special vehicles included in the external feature information of special vehicles. The external feature information is theoretically the same. What needs to be explained here is that in practical applications, due to factors such as the external environment and the recognition capability of the roadside sensing device, there may be situations where one or more external features cannot be recognized, or even be recognized incorrectly. For example, when the external characteristic information of the special vehicle includes the license plate of the special vehicle, the camera cannot recognize the license plate of the special vehicle due to rain and fog.

In step S106, it is determined whether the external feature identification information is consistent with the special vehicle external feature information.

It should be noted that the fact that the external feature identification information is consistent with the special vehicle external feature information does not mean that all the external features in the external feature identification information are exactly the same as all the external features in the special vehicle external feature information. In some embodiments, the fact that the external feature identification information is consistent with the special vehicle external feature information means that the external feature contained in the external feature identification information is consistent with the corresponding external features in the special vehicle external feature information. Correspondingly, if the external feature identification information If there is an inconsistency between the external features contained in the special vehicle external feature information and the corresponding external features in the special vehicle external feature information (for example, the special vehicle plate is consistent, but the shape is inconsistent), then it is determined that the external feature identification information is inconsistent with the special vehicle external feature information. Wherein, the external features contained in the external feature identification information may be part or all of the external features in the special vehicle external feature information.

In particular, considering the complexity of the working conditions, some external features may not be recognized successfully. In some implementations, if there are external features in the special vehicle external feature information that are not included in the external feature identification information, the default All external features are the same. For example, if the external feature information of a special vehicle includes a special vehicle license plate, but the external feature recognition information does not include a special vehicle license plate due to rain, fog, etc., then the special vehicle license plate is assumed to be the same feature. Of course, it is not limited to this in practical applications. For example, the embodiment of the present invention does not exclude such an implementation: if there are external features that are not in the external feature identification information in the special vehicle external feature information, then confirm the missing external features. Inconsistent. For another example, when there are external features not in the external feature identification information in the special vehicle external feature information within the preset number of times, the default external features are consistent, and the special vehicle external feature information contains external features that are not in the external feature identification information. When the number of external features exceeds the preset number of times, it is confirmed that the external features that do not exist are inconsistent.

It can be understood that, in some embodiments, the standard for the consistency between the external feature identification information and the special vehicle external feature information is that all the external features in the external feature identification information are exactly the same as all the external features in the special vehicle external feature information.

Correspondingly, step S103 may include:

In step S103', if the verification of the signature information is successful, and the external characteristic information of the special vehicle is consistent with the external characteristic identification information, it is determined that the identity of the special vehicle is legal.

In the embodiment shown in Figure 3, using the certificate mechanism + external features to verify the identity of the special vehicle can effectively prevent the private key of the special vehicle from being cracked, or the physical module of the special vehicle storing the private key of the special vehicle and the unique identifier of the special vehicle is disassembled Misappropriation, the identified special vehicle identity is more reliable.

Further, on the basis of the embodiment shown in FIG. 1 , in some embodiments, the identification method for a special vehicle may further include: sending a warning message to the special vehicle if the signature information fails to pass the verification.

Specifically, if the signature information verification fails, it means that the identity of the special vehicle that issued the special vehicle identification request is illegal, and the embodiment of the present invention drives away the special vehicle by sending a warning message to the special vehicle to prevent it from occupying the corresponding road resources. Wherein, the presentation manner of the warning information may be voice, text, and the like. It can be understood that the embodiment of the present invention can also send information such as special vehicle identification requests that fail the signature verification to the special vehicle management platform or the police platform for further processing such as monitoring and recording. In practical applications, when the V2X system is deployed, it will record the physical location information, serial number information, logical location information, etc. of the roadside assisting equipment to determine the physical location and communication link information of the roadside assisting equipment, which is convenient for each road The side assists in the classified recording and monitoring of traffic equipment information.

Further, considering the possibility of running special vehicles that do not perform special tasks on the road, in order to accurately identify special vehicles that perform special tasks, in some implementations, step S101 may include:

Obtain the special vehicle identification request sent by the special vehicle when performing special tasks.

In this case, the special vehicle identification request may also include: a unique identifier for the special task. Among them, the unique identifier of the special vehicle is used to refer to a specific special task, which is generated by the organization to which the special vehicle belongs and sent to the corresponding special vehicle. On this basis, the special vehicle identification method of the embodiment of the present invention may also include:

If the identity of the special vehicle is legal, check whether there is a special task corresponding to the unique identifier of the special task.

Specifically, a feasible solution is that the agency to which the special vehicle belongs can send a special task request containing the unique identifier of the special task to the roadside assisting passage device, and the roadside assisting passage device will receive the special vehicle identification request sent by the special vehicle , the special task unique identifier in the special vehicle identification request can be used to check whether there is a corresponding special task request, and if so, it is determined that there is a special task corresponding to the special task unique identifier.

Another feasible solution is that the agency to which the special vehicle belongs can send the special task request containing the unique identifier of the special task to the special vehicle management platform, and the roadside assistance equipment can send the special vehicle identification request after receiving the special vehicle identification request sent by the special vehicle. The special mission unique identifier in the special vehicle identification request is sent to the special vehicle management platform, and the special vehicle management platform inquires whether there is a special mission request corresponding to the special vehicle mission unique identifier. special task, otherwise it is determined that there is no special task corresponding to the unique identifier of the special task. The special vehicle management platform feeds back the query results to the roadside traffic assistance equipment. Among them, as mentioned above, when the V2X system is deployed, it will record the physical location information, serial number information, and logical location information of the roadside assistance equipment for determining the physical location and communication link information of the roadside assistance equipment. , the organization to which the special vehicle belongs can determine which roadside assisting traffic equipment to send the special task request to according to the passage route corresponding to the special task.

In addition, if the roadside traffic assistance equipment does not find the special task corresponding to the unique identifier of the special task, it indicates that there is an abnormality or the special vehicle does not perform the special task. At this time, the roadside traffic assistance equipment can send the special vehicle identification request to the special vehicle management platform for the control and tracking of special vehicles. It can be understood that when there is no unique identifier of the characteristic task in the special vehicle identification request, it can also be determined that there is no special task corresponding to the unique identifier of the special task.

Further, in some implementations, in order to facilitate the special vehicle management platform to keep abreast of the running conditions of the special vehicles running on the road, on the basis of the embodiment shown in Figure 1, the special vehicle identification method in the embodiment of the present invention also includes: It may include: after determining that the identity of the special vehicle is legal, sending the unique identifier of the special vehicle to the special vehicle management platform. It can be understood that in practical applications, information including time and location can also be sent to the special vehicle management platform together with the unique identification of the special vehicle.

Corresponding to the aforementioned method embodiments, the embodiments of the present invention also disclose a roadside assisted passing device, which is used to implement the special vehicle identification method described in any one of the aforementioned method embodiments.

The embodiment of the present invention provides a special roadside assisting traffic device. The roadside assisting device in the V2X system obtains a special vehicle identification request issued by a special vehicle including the unique identifier of the special vehicle and the signature information of the special vehicle, and performs signature information on the signature information. Based on the signature verification of the vehicle digital certificate of the special vehicle, if the signature information passes the verification, it is determined that the identity of the special vehicle is legal. According to the technical solution of the embodiment of the present invention, by means of V2X technology, the special vehicle identification request is obtained, and the vehicle digital certificate is used to verify the signature of the special vehicle identification request, so that the special vehicle can be accurately identified based on the digital certificate mechanism, avoiding the need for cards and Fake special vehicles get road priority, which can guarantee the priority of special vehicles.

Further, as shown in FIG. 4 , the embodiment of the present invention also discloses a special vehicle identification system, including: a special vehicle agency 41 , ARA42 , ACA43 and a roadside assistance device 44 in the V2X system.

Wherein, the agency 41 to which the special vehicle belongs is used to send the vehicle information of the special vehicle to the ARA42.

ARA42 is used to register digital identities for special vehicles based on vehicle information, and send the digital identities to ACA43.

ACA43 is used to obtain vehicle digital certificates based on digital identities.

The roadside assistance device 44 is used to implement the special vehicle identification method described in any one of the foregoing method embodiments.

In practical applications, in order to ensure that the agency 41, ARA42, ACA43 and roadside assistance equipment 44 of special vehicles can determine the source of the information and the identity of the information sender, as well as determine the accuracy and completeness of the information, in some implementations In the method, the organization 41 of the special vehicle is configured with an organization digital certificate for verifying the identity of the organization 41 of the special vehicle, ARA42 is configured with a registration digital certificate for verifying the identity of ARA42, and ACA43 is configured with an authentication digital certificate for verifying the identity of ACA43. The traffic device 44 is equipped with a device authentication digital certificate for the roadside assisted traffic device 44, and the communication between the special vehicle affiliated agency 41, ARA42, ACA43 and the roadside assisted traffic device 44 signs the communication information based on the digital certificates of both parties. In this way, the agency 41, ARA42, ACA43 and roadside assistance device 44 of the special vehicle can verify the source of the information and the identity of the information sender through the digital certificate mechanism, and determine the accuracy and integrity of the information.

In the special vehicle identification system provided by the embodiment of the present invention, the roadside traffic assistance equipment in the V2X system obtains the special vehicle identification request issued by the special vehicle including the unique identification of the special vehicle and the signature information of the special vehicle, and performs the signature information based on The signature verification of the vehicle digital certificate of the special vehicle, if the signature information verification is passed, it is determined that the identity of the special vehicle is legal. According to the technical solution of the embodiment of the present invention, by means of V2X technology, the special vehicle identification request is obtained, and the vehicle digital certificate is used to verify the signature of the special vehicle identification request, so that the special vehicle can be accurately identified based on the digital certificate mechanism, avoiding the need for cards and Fake special vehicles get road priority, which can guarantee the priority of special vehicles.

Those skilled in the art can clearly understand that the technologies in the embodiments of the present invention can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solutions in the embodiments of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM , magnetic disk, optical disk, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present invention.

Each embodiment in this specification is described in a progressive manner, and the same and similar parts of each embodiment can be referred to each other. In the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other , each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for relevant parts, refer to part of the description of the method embodiment.

The terms "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects, and not necessarily Used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of practice in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

The embodiments of the present invention described above are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. The special vehicle identity recognition method is characterized by being applied to road side assisted traffic equipment in a V2X system and comprising the following steps of:

acquiring a special vehicle identification request sent by a special vehicle; wherein the special vehicle identification request includes: a unique identifier of a special vehicle and signature information of the special vehicle;

signing the signature information based on a vehicle digital certificate of the special vehicle; the vehicle digital certificate is obtained according to the unique identification inquiry of the special vehicle;

and if the signature information passes the signature verification, determining that the identity of the special vehicle is legal.

2. The special vehicle identification method according to claim 1, wherein signing the signature information based on the vehicle digital certificate of the special vehicle comprises:

the special vehicle identification request is sent to an application certificate authority ACA or a special vehicle management platform;

and receiving a signature verification result of the ACA or the special vehicle management platform for signing the signature information based on the vehicle digital certificate.

3. The special vehicle identification method according to claim 1, wherein signing the signature information based on the vehicle digital certificate of the special vehicle comprises:

the unique identification of the special vehicle is sent to an application certificate authority ACA or a special vehicle management platform;

receiving the vehicle digital certificate fed back by the ACA or the special vehicle management platform based on the special vehicle unique identifier;

and verifying the signature information by using the vehicle digital certificate.

4. The special vehicle identification method of claim 1, wherein the method further comprises:

acquiring special vehicle external characteristic information corresponding to the special vehicle unique identifier; the special vehicle external feature information is located in the special vehicle identification request, or is acquired from a special vehicle management platform according to the unique vehicle identifier;

acquiring external feature identification information of the special vehicle through a road side sensing device;

judging whether the external characteristic identification information is consistent with the external characteristic information of the special vehicle;

if the signature information passes the signature verification, determining that the identity of the special vehicle is legal comprises the following steps:

and if the signature information passes the signature verification, and the external characteristic identification information is consistent with the external characteristic information of the special vehicle, determining that the identity of the special vehicle is legal.

5. The special vehicle identification method according to claim 4, wherein determining whether the external feature identification information is identical to the special vehicle external feature information includes:

if all the external characteristics in the external characteristic identification information are consistent with the corresponding external characteristics in the external characteristic information of the special vehicle, determining that the external characteristic identification information is consistent with the external characteristic information of the special vehicle, otherwise, determining that the external characteristic identification information is inconsistent with the external characteristic information of the special vehicle;

if the external feature information of the special vehicle contains the external feature which is not contained in the external feature identification information, defaulting to the fact that the external feature which is not contained in the external feature identification information is consistent.

6. The special vehicle identification method as claimed in claim 1, wherein acquiring a special vehicle identification request issued by a special vehicle comprises:

acquiring a special vehicle identification request sent by a special vehicle when executing a special task; wherein the special vehicle identification request further comprises: unique identification of the special task;

the method further comprises the steps of:

and if the identity of the special vehicle is legal, inquiring whether a special task corresponding to the unique identification of the special task exists.

7. The special vehicle identification method of claim 1, wherein the method further comprises:

after the identity of the special vehicle is legal, the unique identification of the special vehicle is sent to a special vehicle management platform, so that the special vehicle management platform monitors the special vehicle running on the road.

8. The special vehicle identification method as claimed in claim 1, wherein the application mode of the vehicle digital certificate is as follows:

the method comprises the steps that a mechanism to which a special vehicle belongs sends vehicle information of the special vehicle to an application registration mechanism ARA;

the ARA registers a digital identity for the special vehicle based on the vehicle information, and sends the digital identity to an application authentication agency ACA;

the ACA obtains the vehicle digital certificate based on the digital identity.

9. A roadside assistance-passing device in a V2X system, characterized in that the roadside assistance-passing device is configured to perform the special vehicle identification method as set forth in any one of claims 1 to 8.

10. A special vehicle identification system, comprising: the special vehicle belongs to a mechanism, an application registration mechanism ARA and road side auxiliary passing equipment in an application authentication mechanism ACA and V2X system;

the special vehicle affiliated mechanism is used for sending vehicle information of the special vehicle to the ARA;

the ARA is used for registering a digital identity for the special vehicle based on the vehicle information and sending the digital identity to the ACA;

the ACA is used for obtaining a vehicle digital certificate based on the digital identity;

the roadside assistance passing device is used for executing the special vehicle identification method according to any one of claims 1 to 8.

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