Safety warning board control method, related device and storage medium

Abstract

The invention provides a control method of a safety warning board, a related device and a storage medium. The control method comprises the steps that under the condition that a safety warning board is used for warning nearby vehicles, accident early warning information of vehicles related to the safety warning board is signed according to a data signature process, signature data of the accident early warning information are obtained, and the accident early warning information comprises vehicle fault information and vehicle position information; broadcasting the signature data and the accident early warning information to a vehicle-mounted system and / or a traveler system, performing signature verification on the signature data by the vehicle-mounted system and / or the traveler system according to a data signature verification process, and informing a vehicle owner and / or a traveler of the accident early warning information under the condition that the signature verification is passed; the signature data and the accident early warning information are sent to the cloud control platform, the cloud control platform performs signature verification on the signature data according to the data signature verification process, and the accident early warning information is controlled to be displayed on the map software under the condition that the signature verification is passed, so that the occurrence rate of a secondary accident is reduced.

Description

Technical Field

[0001] The present invention belongs to the field of information security technology, and in particular relates to a control method, a related device and a storage medium for a safety warning sign. Background Art

[0002] When an emergency or breakdown occurs on the road, it is usually necessary to place a safety warning sign (also known as a triangular warning sign, safety tripod, etc.) at a certain distance behind the vehicle to warn nearby vehicles to avoid secondary accidents. However, traditional triangular warning signs can only play a limited warning role and cannot notify other vehicles or relevant departments in real time. In order to solve this problem, the safety warning sign is built with main control chips, positioning modules (for example, global navigation satellite systems (GNSS in English, such as GPS systems or Beidou dual-mode positioning systems), battery modules, communication modules (for example, GSM modules) and other components. When the safety warning sign is activated, the positioning module will locate the current accident location, and the communication module will automatically establish a connection with the cloud control platform through the network, upload the current accident location to the cloud control platform for processing, and the cloud control platform will display the accident information on the map software and send notifications to vehicles using the map software. In this way, nearby vehicles can know in advance that an accident has occurred ahead, so as to prepare for avoidance in advance. However, there are still some problems with this triangular warning sign. The safety warning sign in the related technology relies on the GSM network and the cloud The safety warning signs communicate with the cloud control platform. When the network signal is poor, the information sent through the GSM network has a large delay, which will cause the accident warning information on the navigation map to be inaccurate and time-sensitive. Even in areas without GSM networks, the safety warning signs cannot communicate with the cloud control platform, resulting in the inability to display accident warning information on the navigation map, and nearby vehicles cannot receive accident warning information. In addition, the safety warning signs rely on the corresponding map software to display accident information. The road condition data of the warning signs that rely on different brands of map software is not shared. The accident warning information is only displayed on a certain map software (for example, Amap). Vehicles using other map software (for example, Baidu Map) or not using map software will not receive accident warning information, which cannot effectively reduce the incidence of secondary accidents. Summary of the invention

[0003] In view of the above problems, the present disclosure provides a control method for a safety warning sign, a related device and a storage medium, aiming to improve the reliability of nearby vehicles receiving accident warning information and reduce the occurrence rate of secondary accidents.

[0004] According to a first aspect of the present disclosure, a method for controlling a safety warning sign is provided, the control method comprising:

[0005] In the case of using a safety warning sign to warn nearby vehicles, signing the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain the signature data of the accident warning information, wherein the accident warning information includes vehicle fault information and vehicle location information;

[0006] broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, wherein the vehicle-mounted system and / or the traveler system verifies the signature data of the accident warning information according to the data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification passes;

[0007] The signature data of the accident warning information and the accident warning information are sent to a cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to a data verification process, and controls the display of the accident warning information on the map software if the verification passes.

[0008] Optionally, before broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the control method further includes:

[0009] Sending an application request for broadcasting accident warning information to the cloud control platform, wherein the application request includes the accident warning information;

[0010] Among them, the cloud control platform forwards the application request to the safety warning sign management platform, searches for the user of the safety warning sign on the safety warning sign management platform, and when the user confirms that the accident warning information is true, forwards the application request review approval information to the safety warning sign via the cloud control platform, so that when the user confirms that the accident warning information is true, the safety warning sign broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system and / or traveler system.

[0011] Optionally, after broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the control method further includes:

[0012] The vehicle-mounted system and / or the traveler system reports the accident warning information to the cloud control platform;

[0013] Among them, the cloud control platform forwards the accident warning information to the safety warning sign management platform, searches for the user of the safety warning sign on the safety warning sign management platform, and sends the safety warning sign abnormal information to the cloud control platform when the user confirms that the accident warning information is not true. The cloud control platform controls the digital identity service platform to revoke the digital certificate of the safety warning sign.

[0014] Optionally, broadcasting the signature data of the accident warning information and the accident warning information to a vehicle-mounted system and / or a traveler system includes:

[0015] The signature data of the accident warning information and the accident warning information are broadcast to nearby roadside units, and the nearby roadside units broadcast the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system.

[0016] Optionally, sending the signature data of the accident warning information and the accident warning information to a cloud control platform includes:

[0017] After broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the vehicle-mounted system and / or the traveler system forwards the signature data of the accident warning information and the accident warning information to the cloud control platform.

[0018] Optionally, when the safety warning sign is used to warn nearby vehicles, the accident warning information of the vehicle related to the safety warning sign is signed according to the data signing process, and before the signature data of the accident warning information is obtained, the control method further includes:

[0019] The Internet of Vehicles device sends a certificate application request to the digital identity service platform, wherein the certificate application request includes device information of the Internet of Vehicles device, and the Internet of Vehicles device includes any one of the cloud control platform, the safety warning sign, the vehicle system, and the traveler system;

[0020] When the digital identity service platform verifies that the certificate application request is legitimate, generating a digital certificate for the connected vehicle device, sending the digital certificate to a third-party platform, and issuing the digital certificate to the connected vehicle device;

[0021] The Internet of Vehicles device stores the digital certificate in a secure carrier;

[0022] Signing the certificate revocation list according to the data signature process on the digital identity service platform to obtain a digital signature of the certificate revocation list;

[0023] Sending a certificate revocation list download request to the digital identity service platform by the Internet of Vehicles device;

[0024] The Internet of Vehicles device receives the certificate revocation list and its digital signature issued by the digital identity service platform, verifies the digital signature of the certificate revocation list according to the data verification process, and stores the certificate revocation list in a secure carrier if the verification passes.

[0025] Optionally, the data signing process includes:

[0026] The data sender uses the private key of the digital certificate of the data sender to sign the data to be sent, thereby obtaining the digital signature of the data to be sent;

[0027] The data sender packages the data to be sent, the digital signature and the digital certificate of the data sender into a data packet;

[0028] The data verification process includes:

[0029] Verify at the data receiving party whether the digital certificate of the data sending party is legitimate;

[0030] If the digital certificate of the data sender is legal, checking at the data receiver whether the digital certificate has been revoked;

[0031] When the digital certificate of the data sender is within the validity period, the data receiver verifies the digital signature of the data to be sent using the public key of the digital certificate of the data sender, and obtains the data to be sent if the verification passes.

[0032] According to a second aspect of the present disclosure, a control device for a safety warning sign is provided, the control device comprising:

[0033] An accident warning information acquisition unit is used to sign the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain the signature data of the accident warning information when the safety warning sign is used to warn nearby vehicles, and the accident warning information includes vehicle fault information and vehicle location information;

[0034] An accident warning information broadcasting unit, used for broadcasting the signature data of the accident warning information and the accident warning information to a vehicle-mounted system and / or a traveler system, wherein the vehicle-mounted system and / or the traveler system verifies the signature data of the accident warning information according to a data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification passes;

[0035] The accident warning information sending unit is used to send the signature data of the accident warning information and the accident warning information to the cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to the data verification process, and controls the display of the accident warning information on the map software if the verification passes.

[0036] According to a third aspect of the present disclosure, there is provided a safety warning sign, comprising

[0037] Structural components, including a base, guide arms, reflective strips, and a remote control module;

[0038] A positioning module, used to obtain vehicle location information of the vehicle associated with the safety warning sign;

[0039] The above-mentioned control device implements the steps of the above-mentioned method, controls the notification of accident warning information to the vehicle owner and / or the traveler, and controls the display of the accident warning information on the map software.

[0040] According to a fourth aspect of the present disclosure, a control system for a safety warning sign is provided, comprising:

[0041] A safety warning sign, comprising the above-mentioned control device, implements the steps of the above-mentioned method, notifies the vehicle owner and / or the traveler of the accident warning information, and controls the display of the accident warning information on the map software;

[0042] An on-board system, which is installed in a vehicle passing by and is used to communicate with the safety warning sign and other roadside units to achieve vehicle-road cooperative communication between the vehicle and the roadside infrastructure;

[0043] A traveler system, which is installed on a smart terminal of a traveler passing by, and is used to communicate with the safety warning sign and other roadside units to achieve vehicle-road cooperative communication between the smart terminal and the roadside infrastructure;

[0044] The cloud control platform is used to provide safety management functions for the vehicle-road cooperative communication between the safety warning sign and the vehicle-mounted system and / or the traveler system.

[0045] According to a fifth aspect of the present disclosure, an electronic device is provided, comprising: a processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the method described above when executed by the processor.

[0046] According to a sixth aspect of the present disclosure, a storage medium is provided, on which a computer program or instruction is stored, and the computer program or instruction, when executed by a processor, implements the steps of the method described above.

[0047] The present disclosure brings the following beneficial effects:

[0048] The control method provided by the present invention is applied to a safety warning sign. When the safety warning sign is used to warn nearby vehicles, the accident warning information of the vehicle related to the safety warning sign is signed according to the data signing process to obtain the signature data of the accident warning information. The accident warning information includes vehicle fault information and vehicle location information. The signature data of the accident warning information and the accident warning information are broadcast to the on-board system and / or the traveler system. The on-board system and / or the traveler system verifies the signature data of the accident warning information according to the data verification process. If the verification passes, the accident warning information is notified to the vehicle owner and / or the traveler. In this way, based on the vehicle-road cooperative communication network, the accident warning information can be broadcast to the on-board system and / or the traveler system without the need for a mobile communication network. The on-board system and / or the traveler system within the near-field communication range can all receive the accident warning information. At the same time, the communication delay between the safety warning sign and the on-board system and / or the traveler system is reduced, thereby reducing the occurrence rate of secondary accidents. In addition, the signature data of the accident warning information and the accident warning information are sent to the cloud control platform, and the signature data of the accident warning information is verified on the cloud control platform according to the data verification process. If the verification is passed, the accident warning information is controlled to be displayed on the map software. In this way, the reliability of nearby vehicles receiving accident warning information is improved through the dual warning method of broadcasting the accident warning information to the vehicle system and / or the traveler system based on the vehicle-road cooperative communication network + controlling the display of the accident warning information on the map software through the cloud control platform, thereby reducing the occurrence rate of secondary accidents. Through digital identity authentication technology, the signature data of the accident warning information is transmitted between the safety warning sign, the vehicle system and / or the traveler system and the cloud control platform, which improves the data security of nearby vehicles receiving accident warning information.

[0049] Other features and advantages of the present disclosure will be described in the following description, and partly become apparent from the description, or understood by practicing the present disclosure. The purpose and other advantages of the present disclosure are realized and obtained by the structures particularly pointed out in the description and the drawings.

[0050] In order to make the above-mentioned objectives, features and advantages of the present disclosure more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0052] Figure 1 A schematic diagram of the structure of a control system for a safety warning sign provided according to an embodiment of the present disclosure;

[0053] Figure 2A schematic diagram of the structure of a safety warning sign provided according to an embodiment of the present disclosure;

[0054] Figure 3 A schematic flow chart of a method for controlling a safety warning sign according to an embodiment of the present disclosure;

[0055] Figure 4A A schematic diagram of a process for registering a digital certificate of a connected vehicle device according to an embodiment of the present disclosure;

[0056] Figure 4B A schematic diagram of a process for canceling a digital certificate of an Internet of Vehicles device according to an embodiment of the present disclosure;

[0057] Figure 5 A schematic diagram of a process of data signing and data verification according to an embodiment of the present disclosure;

[0058] Figure 6 A schematic flow chart of a method for controlling a safety warning sign according to an embodiment of the present disclosure;

[0059] Figure 7 A schematic flow chart of a method for controlling a safety warning sign according to an embodiment of the present disclosure;

[0060] Figure 8 A schematic diagram of the structure of a control device for a safety warning sign provided according to an embodiment of the present disclosure;

[0061] Fig. 9 The present invention is a schematic diagram of the structure of an electronic device provided according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0062] Various embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. In each of the accompanying drawings, the same elements are represented by the same or similar reference numerals. For the sake of clarity, the various parts in the accompanying drawings are not drawn to scale.

[0063] The following terms are used in this article:

[0064] Digital signature is a technology based on public key encryption technology to verify the integrity of digital information and the identity of the sender. It is similar to the electronic form of a handwritten signature or seal, but more secure.

[0065] The onboard unit (OBU) is an electronic device installed on the vehicle. Its main function is to communicate with roadside infrastructure (such as toll booths, traffic lights, etc.) to realize information exchange between vehicles and roadside infrastructure in order to provide various traffic services. In the non-stop toll collection system, the OBU can automatically identify the signal at the toll booth and automatically complete the transaction process, including deduction and collection. In the vehicle-road cooperative system, the OBU can receive various traffic information sent by the roadside infrastructure (such as traffic light status, road conditions ahead, etc.) and display this information to the driver to help the driver make safer and more efficient driving decisions. At the same time, the OBU can also send the vehicle's status information (such as location, speed, driving direction, etc.) to the roadside infrastructure for traffic management and services.

[0066] Road Side Unit (RSU) is an important wireless communication device in the vehicle-to-everything (V2X) system. It is installed in the roadside infrastructure. Its main function is to communicate with passing vehicles and other RSUs to achieve information exchange between vehicles and roadside infrastructure. RSU can collect and process various information of the vehicle, such as the vehicle's location, speed, direction, etc., and send this information to other vehicles or third-party platforms. At the same time, RSU can also receive information from third-party platforms, such as traffic conditions, weather information, etc., and pass this information to the vehicle to help the driver make better driving decisions.

[0067] The secure carrier includes a secure element (SE) and / or a TEE system. SE is an electronic component with tamper-proof function that can be installed on the terminal device to provide a secure and confidential data storage and operation environment. SE consists of software and tamper-proof hardware, supports high-level security, such as SIM cards, financial IC cards, smart SD cards, etc., and can run with TEE. SE includes a chip operating system (Chip Operating System, COS), a secure carrier application (Applet) and a memory to provide secure authentication, encryption and data protection functions.

[0068] Figure 1 FIG. 1 is a schematic diagram of a control system for a safety warning sign according to an embodiment of the present disclosure. Figure 1 As shown, the control system 100 provided by the embodiment of the present disclosure includes: an in-vehicle system 110, a safety warning sign 120, a cloud control platform 130, a traveler system 140, a third-party platform (e.g., a safety warning sign management platform 150 and a map APP 170), and a digital identity service platform 160. The in-vehicle system 110 includes an in-vehicle unit 111.

[0069] In some embodiments, the safety warning sign 120 is an important safety warning tool when a vehicle fails or an accident occurs on the road. When an emergency or a failure occurs on the road, it is usually necessary to place a safety warning sign 120 at a certain distance behind the vehicle to warn nearby vehicles to avoid secondary accidents. Figure 2 Schematic diagram of the structure of a safety warning sign provided according to an embodiment of the present disclosure. Figure 2 As shown, the safety warning sign 120 includes a structural component 210 , a control module 220 , a power module 230 , a sensor module 240 , a positioning module 250 , a vehicle to everything (V2X) module 260 , a safety carrier 270 and a GSM communication module 280 .

[0070] The structural assembly 210 includes guide arms, reflective strips, a base, and a remote control module. The frame of the triangular warning sign 120 is composed of a left front guide arm, a left rear guide arm, a right front guide arm, and a right rear guide arm. These guide arms can be folded and overlapped for easy carrying and storage, and can stably support the warning sign when unfolded. The guide arms are usually made of lightweight and sturdy materials to withstand the influence of various weather conditions and road environments. The reflective strip is an important component of the safety warning sign 120, including a left waist reflective strip, a right waist reflective strip, and a horizontal reflective strip, which can reflect light at night or in an environment with poor visibility to improve the visibility of the warning sign. The reflective strip is usually made of a material with a high reflectivity to ensure the reflective effect at different angles and distances. The base is used to connect the guide arms and stabilize the structure of the entire warning sign. The base must be strong enough to support the warning sign to remain stable under the action of wind and other external forces. The safety warning sign 120 can be operated by a remote control module, including a dual-color laser pen guided remote control, a long-distance radio frequency wireless remote control, and a smart phone wireless remote control. The remote control module allows a user to remotely control the movement and deployment of the safety warning sign 120 from a safe location.

[0071] The control module 220 includes functional modules such as the main control chip, motor drive, wireless communication, power management and sensor input. The control module 220 is the intelligent operation core of the safety warning sign 120, which realizes functions such as remote control automatic expansion and folding, LED light flashing warning and predetermined placement distance. The main control chip usually uses a powerful MCU or SOC chip with rich I / O ports and powerful processing capabilities, which can effectively perform data processing and equipment control. The safety warning sign 120 needs to be automatically expanded and folded by a motor. The motor drive module is usually used to control these motors and can provide sufficient current and voltage to drive the motor to operate. The wireless communication module provides communication capabilities between the safety warning sign 120 and the remote control. The power management module provides a power management solution to ensure the normal operation of the safety warning sign 120. The sensor input module transmits the data of the built-in sensor of the safety warning sign 120 to the main control chip for processing to adjust the light intensity of the warning sign or sound an alarm to adapt to different environmental conditions.

[0072] The power module 230 ensures that the safety warning sign 120 can work continuously and stably, and provides necessary energy support in various emergency situations. The positioning module 250 is mainly based on the global navigation satellite system (GNSS, such as GPS system or Beidou dual-mode positioning system), which is responsible for locating the vehicle position related to the safety warning sign 120 when an accident occurs, ensuring that even in areas with poor network coverage, accurate positioning can be performed through satellite signals. The sensor module 240 includes photosensitive sensors, sound sensors, collision sensors, etc. These sensors work together to improve the intelligence level of the safety warning sign 120 and its ability to respond to emergencies. The GSM communication module 280 mainly uses a SIM communication module to realize real-time transmission and remote alarm functions of information such as the location of accidents and faulty vehicles. The V2X module 260 mainly realizes the vehicle-road collaboration function, broadcasting messages to other vehicles and / or travelers through a near-field communication protocol (for example, a PC5 communication protocol). The security carrier 270 provides secure storage and secure computing functions. It is generally implemented in the form of SE, TEE or TEE+SE. The main function of the security carrier 270 is to verify the legitimacy and credibility of the device in the vehicle-road cooperative system.

[0073] In some embodiments, the vehicle-mounted system 110 is provided on the vehicle passing by, and is used to communicate with the safety warning sign 120 and other roadside units to realize the vehicle-road cooperative communication between the vehicle and the roadside infrastructure. In some embodiments, the traveler system 140 is provided on the smart terminal of the traveler passing by, and is used to communicate with the safety warning sign 120 and other roadside units to realize the vehicle-road cooperative communication between the smart terminal and the roadside infrastructure. In some embodiments, the cloud control platform 130 provides a safety management function for the vehicle-road cooperative communication between the vehicle-mounted system 110, the traveler system 140 and the safety warning sign 120. In some embodiments, the safety warning sign management platform 150 can manage and control various types of safety warning signs 120, and the user can operate this platform through the safety warning sign APP on the smart terminal to realize remote control and management of the safety warning sign 120. For example, the user can remotely adjust the position of the safety warning sign 120 through the safety warning sign APP, monitor the status of the safety warning sign 120, etc. In some embodiments, the map APP 170 provides geographic location information and navigation services, and can be located in the smart terminal of the vehicle driver and passengers. In some embodiments, the digital identity service platform 160 is used to verify the real identity of the vehicle, which can usually be achieved by requiring the user to provide some real-name information (such as the vehicle's unique identifier). The digital identity service platform 160 is also called a certificate authority (CA), which is a core component of the PKI system and is responsible for issuing, managing, revoking and updating digital certificates, and will authenticate the entity that applies for the digital certificate.

[0074] Since the control method of the disclosed embodiment is used to control the safety warning sign to notify the car owner and / or traveler of the accident warning information, the specific process of controlling the display of the accident warning information in the map software will be described in detail below, so it will not be repeated here.

[0075] Figure 3 1 is a flow chart of a control method for a safety warning sign according to an embodiment of the present disclosure. The control method in the embodiment of the present disclosure is applied to the safety warning sign 120 and executed by the control module 220. Figure 3 As shown, the control method includes:

[0076] In step S310, when a safety warning sign is used to warn nearby vehicles, the accident warning information of the vehicle related to the safety warning sign is signed according to the data signing process to obtain the signature data of the accident warning information, where the accident warning information includes vehicle fault information and vehicle location information.

[0077] In some embodiments, when the vehicle and / or the traveler travels within a certain range of the safety warning sign 120, the vehicle system 110 and / or the traveler system can perform near field communication (e.g., PC5 communication method) with the V2X module 260 located at the safety warning sign 120. In some embodiments, before step S310, the digital identity service platform 160 can issue a digital certificate to the Internet of Vehicles device. Figure 4A The flowchart of registering a digital certificate of a connected vehicle device according to an embodiment of the present disclosure is as follows. In some embodiments, the connected vehicle device includes any one of a cloud control platform 130, a safety warning sign 120, an in-vehicle system 110, and a traveler system 140. The steps of registering a digital certificate of a connected vehicle device in the embodiment of the present disclosure include:

[0078] In step S411 , the Internet of Vehicles device sends a certificate application request to the digital identity service platform 160 , and the certificate application request includes device information of the Internet of Vehicles device.

[0079] In step S412, if the digital identity service platform 160 verifies that the certificate application request is legitimate, a digital certificate for the connected vehicle device is generated. If the digital identity service platform 160 verifies that the certificate application request is not legitimate, the process ends.

[0080] In step S413 , the digital identity service platform 160 sends the digital certificate to a third-party platform (the third-party platform may be the safety warning sign management platform 150 and / or the map APP 170 ).

[0081] In step S414, the digital identity service platform 160 sends the digital certificate to the Internet of Vehicles device.

[0082] In step S415, the Internet of Vehicles device stores the digital certificate in a secure carrier (the secure carrier may be one of SE, TEE or SE+TEE), so that the digital certificate of the Internet of Vehicles device can be used in the business.

[0083] In some embodiments, the digital certificate of the Internet of Vehicles device may be revoked by the digital identity service platform 160 . Figure 4B The flowchart of canceling the digital certificate of a connected vehicle device according to an embodiment of the present disclosure is as follows. In some embodiments, the connected vehicle device includes any one of the cloud control platform 130, the safety warning sign 120, the vehicle system 110, and the traveler system 140. The steps of canceling the digital certificate of the connected vehicle device in the embodiment of the present disclosure include:

[0084] In step S421, the digital identity service platform 160 signs the certificate revocation list according to the data signature process to obtain the digital signature of the certificate revocation list. Figure 5The following is a flow chart of data signing and data verification according to an embodiment of the present disclosure. Figure 5 The data sender in is the digital identity service platform 160, the data receiver is the Internet of Vehicles device, and the data to be sent is the certificate revocation list. Figure 5 As shown, the steps of signing the certificate revocation list on the digital identity service platform 160 in the embodiment of the present disclosure include:

[0085] In step S510, the digital identity service platform 160 signs the certificate revocation list using the private key of the digital certificate of the digital identity service platform 160 to obtain the digital signature of the certificate revocation list.

[0086] In step S520 , the digital identity service platform 160 packages the certificate revocation list, the digital signature, and the digital certificate of the digital identity service platform 160 into a data package.

[0087] In step S422 , the Internet of Vehicles device sends a certificate revocation list download request to the digital identity service platform 160 .

[0088] In step S423 , the Internet of Vehicles device receives the certificate revocation list and its digital signature issued by the digital identity service platform 160 .

[0089] In step S424, the Internet of Vehicles device verifies the digital signature of the certificate revocation list according to the data verification process, and stores the certificate revocation list in a secure carrier if the verification passes. When using the digital certificate of the Internet of Vehicles device, the certificate revocation list can be checked to confirm whether the certificate has been revoked. In some embodiments, Figure 5 As shown, in the embodiment of the present disclosure, the steps of verifying the digital signature of the certificate revocation list in the Internet of Vehicles device include:

[0090] In step S530 , the Internet of Vehicles device verifies whether the digital certificate of the digital identity service platform 160 is legitimate.

[0091] In step S540, if the digital certificate of the digital identity service platform 160 is legal, the Internet of Vehicles device checks whether the digital certificate has been revoked. If the digital certificate of the digital identity service platform 160 is not legal, the process ends.

[0092] In step S550, if the digital certificate of the digital identity service platform 160 is within the validity period, the Internet of Vehicles device uses the public key of the digital certificate of the digital identity service platform 160 to verify the digital signature of the certificate revocation list. If the verification is successful, the certificate revocation list is obtained. If the digital certificate of the digital identity service platform 160 is not within the validity period, the process ends.

[0093] It should be noted that in step S530 to step S550, there is no clear priority order for the three conditions of whether the digital certificate is legal, whether the digital certificate has been revoked, and whether the digital certificate is within the validity period. The process ends as long as any one of the conditions is not met.

[0094] In some embodiments, the digital certificates of the safety warning sign 120, the vehicle system 110, and the traveler system 140 may be synchronized to the cloud control platform 130. It should be noted that the data signature process and the data signature verification process in the embodiments of the present disclosure may be implemented by calling the algorithm in the security carrier.

[0095] In some embodiments, when an emergency or breakdown occurs on the road, the safety warning sign 120 usually needs to be turned on and placed at a certain distance behind the vehicle to warn nearby vehicles, and nearby vehicles need to be notified of accident warning information to reduce the occurrence of secondary accidents. In some embodiments, the accident warning information includes vehicle fault information and vehicle location information. The positioning module 250 can locate the vehicle location information of the vehicle associated with the safety warning sign 120. The control module 220 can generate vehicle fault information based on the sensing data of the sensor module 240, and the vehicle fault information can simply describe the vehicle emergency or breakdown. In some embodiments, the accident warning information of the vehicle associated with the safety warning sign 120 can be signed according to the data signing process to obtain the signature data of the accident warning information. In some embodiments, Figure 5 The data sender in is the safety warning sign 120, and the data to be sent is the accident warning information. Figure 5 As shown, the steps of signing the accident warning information on the safety warning sign 120 in the embodiment of the present disclosure include:

[0096] In step S510, the safety warning sign 120 signs the accident warning information using the private key of the digital certificate of the safety warning sign 120 to obtain a digital signature of the accident warning information.

[0097] In step S520, the accident warning information, the digital signature, and the digital certificate of the safety warning sign 120 are packaged into a data packet on the safety warning sign 120.

[0098] In step S320, the signature data of the accident warning information and the accident warning information are broadcast to the vehicle-mounted system and / or the traveler system, wherein the signature data of the accident warning information is verified by the vehicle-mounted system and / or the traveler system according to the data verification process, and the accident warning information is notified to the vehicle owner and / or the traveler if the verification passes.

[0099] In some embodiments, before step S320, the GSM communication module 280 sends an application request for broadcasting accident warning information to the cloud control platform 130. After receiving the application request, the cloud control platform 130 forwards the application request to the safety warning sign management platform 150, searches for the user of the safety warning sign 120 on the safety warning sign management platform 150, and forwards the application request approval information to the safety warning sign 120 via the cloud control platform 130 when the user confirms that the accident warning information is true, so that the safety warning sign 120 broadcasts the signature data and the accident warning information to the vehicle system 110 and / or the traveler system 140 when the user confirms that the accident warning information is true. It is understandable that an application request for broadcasting accident warning information is sent to the cloud control platform 130 and the application request is reviewed by the safety warning sign management platform 150. Only after the application request is approved will the signature data of the accident warning information and the accident warning information be broadcast to the vehicle system 110 and / or the traveler system 140. This can ensure the authenticity of the use of the safety warning sign 120 to warn nearby vehicles and avoid false alarms (for example, there is actually no accident, but the owner turns on the safety warning sign 120 to broadcast accident warning information to nearby vehicles).

[0100] In some embodiments, the V2X module 260 broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system 110 and / or the traveler system 140. The vehicle system 110 and / or the traveler system 140 verifies the signature data of the accident warning information according to the data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification passes. Figure 5 The data receiver in is the vehicle system 110 and / or the traveler system 140, such as Figure 5 As shown, in the embodiment of the present disclosure, the steps of verifying the signature data of the accident warning information in the vehicle system 110 and / or the traveler system 140 include:

[0101] In step S530 , the in-vehicle system 110 and / or the traveler system 140 verifies whether the digital certificate of the safety warning sign 120 is legitimate.

[0102] In step S540, if the digital certificate of the safety warning sign 120 is legitimate, the vehicle system 110 and / or the traveler system 140 checks whether the digital certificate has been revoked. If the digital certificate of the safety warning sign 120 is not legitimate, the process ends.

[0103] In step S550, if the digital certificate of the safety warning sign 120 is within the validity period, the vehicle-mounted system 110 and / or the traveler system 140 uses the public key of the digital certificate of the safety warning sign 120 to verify the digital signature of the accident warning information. If the verification is successful, the accident warning information is obtained. If the digital certificate of the safety warning sign 120 is not within the validity period, the process ends.

[0104] In some embodiments, the safety warning sign 120 may broadcast the signature data of the accident warning information and the accident warning information to nearby roadside units, and the nearby roadside units broadcast the signature data of the accident warning information and the accident warning information to the vehicle system 110 and / or the traveler system 140. In this way, when the transmission power of the safety warning sign 120 is insufficient, the accident warning information can be broadcast to the vehicle system 110 and / or the traveler system 140 with the help of nearby roadside units.

[0105] In step S330, the signature data of the accident warning information and the accident warning information are sent to a cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to a data verification process, and controls the display of the accident warning information on the map software if the verification passes.

[0106] In some embodiments, the GSM communication module 280 uses the mobile communication network to send the signature data of the accident warning information and the accident warning information to the cloud control platform 130. The cloud control platform 130 verifies the signature data of the accident warning information according to the data verification process, and forwards the accident warning information to the map software (i.e., the map APP 170) to control the display of the accident warning information on the map APP 170 if the verification passes.

[0107] In some embodiments, after the signature data of the accident warning information and the accident warning information are broadcast to the vehicle system 110 and / or the traveler system 140, the vehicle system 110 and / or the traveler system 140 forwards the signature data of the accident warning information and the accident warning information to the cloud control platform 130. The cloud control platform 130 verifies the signature data of the accident warning information according to the data verification process, and if the verification passes, forwards the accident warning information to the map software (i.e., the map APP 170) to control the display of the accident warning information on the map APP 170. It is understandable that, in the case where the safety warning sign 120 does not have a mobile communication network, the signature data of the accident warning information and the accident warning information can be forwarded to the cloud control platform 130 through the vehicle system 110 and / or the traveler system 140, so as to control the display of the accident warning information on the map APP 170.

[0108] In some embodiments, Figure 5 The data receiver in is the cloud control platform 130, such as Figure 5 As shown, in the embodiment of the present disclosure, the steps of verifying the signature data of the accident warning information on the cloud control platform 130 include:

[0109] In step S530 , the cloud control platform 130 verifies whether the digital certificate of the safety warning sign 120 is legitimate.

[0110] In step S540, if the digital certificate of the safety warning sign 120 is legal, the cloud control platform 130 checks whether the digital certificate has been revoked. If the digital certificate of the safety warning sign 120 is not legal, the process ends.

[0111] In step S550, if the digital certificate of the safety warning sign 120 is within the validity period, the cloud control platform 130 uses the public key of the digital certificate of the safety warning sign 120 to verify the digital signature of the accident warning information. If the verification is successful, the accident warning information is obtained. If the digital certificate of the safety warning sign 120 is not within the validity period, the process ends.

[0112] In some embodiments, after step S320, the vehicle system 110 and / or the traveler system 140 reports the accident warning information to the cloud control platform 130. The cloud control platform 130 forwards the accident warning information to the safety warning sign management platform 150, searches for the user of the safety warning sign 120 on the safety warning sign management platform 150, and sends the abnormal information of the safety warning sign to the cloud control platform 130 when the user confirms that the accident warning information is not true. The cloud control platform 130 controls the digital identity service platform 160 to revoke the digital certificate of the safety warning sign 120. When the user confirms that the accident warning information is true, step S330 is executed. During step S330, only the signature data of the accident warning information needs to be sent to the cloud control platform 130, or the signature data of the accident warning information and the accident warning information can be packaged and sent to the cloud control platform 130, wherein the cloud control platform 130 verifies the signature data of the accident warning information according to the data verification process, and controls the display of the accident warning information on the map software 170 when the verification passes. It can be understood that after the accident warning information is broadcast to the vehicles or travelers near the safety warning sign 120, the vehicles or travelers near the safety warning sign 120 report the accident warning information to the cloud control platform 130 so that the safety warning sign management platform 150 can review whether the accident warning information is true. In this way, even if the safety warning sign 120 does not have a mobile communication network, the accident warning information of the safety warning sign 120 can be broadcast to nearby vehicles or travelers, reducing the communication delay between the safety warning sign and the vehicle-mounted system and / or the traveler system, ensuring that nearby vehicles or travelers can receive the accident warning information of the safety warning sign 120 in a timely manner.

[0113] It is understandable that the control method process of the embodiment of the present disclosure can be regularly executed at a certain frequency, so as to regularly send accident warning information to the vehicle system 110 and / or the traveler system 140. It should be noted that in the embodiment of the present disclosure, data encryption technology and digital identity authentication technology can be used to sign and encrypt the accident warning information, and then transmit the signed encrypted data of the accident warning information between the vehicle system 110 and / or the traveler system 140, the cloud control platform 130 and the safety warning sign 120, so as to further improve the data security of the accident warning information transmitted between the safety warning sign, the vehicle system and / or the traveler system and the cloud control platform, thereby improving the data security of the accident warning information received by nearby vehicles.

[0114] It is understandable that, based on the vehicle-road cooperative communication network, the signature data and accident warning information of the accident warning information can be broadcast to the vehicle-mounted system and / or the traveler system without the need for a mobile communication network, and the vehicle-mounted system and / or the traveler system within the near-field communication range can all receive the accident warning information, while reducing the communication delay between the safety warning sign and the vehicle-mounted system and / or the traveler system, thereby reducing the secondary accident rate. It is understandable that the signature data and accident warning information of the accident warning information are sent to the cloud control platform, and the cloud control platform verifies the signature data of the accident warning information according to the data verification process. If the verification passes, the accident warning information is forwarded to the map software to control the display of the accident warning information on the map software. In this way, the dual warning method of broadcasting the accident warning information to the vehicle-mounted system and / or the traveler system based on the vehicle-road cooperative communication network + controlling the display of the accident warning information on the map software through the cloud control platform improves the reliability of nearby vehicles receiving the accident warning information, thereby reducing the secondary accident rate.

[0115] It is understandable that the use of vehicle-road collaboration technology can not only provide local warnings near the safety warning sign 120, but also achieve global path optimization and mixed traffic game conflict resolution, thereby improving the overall traffic safety level. The disclosed embodiment supports vehicle-road collaboration technology and is compatible with existing safety warning sign system solutions, with a wider range of applications. In systems that do not support vehicle-road collaboration technology, interfaces for connecting to different service platforms are also provided, which can be compatible with solutions from different manufacturers.

[0116] Figure 6 FIG. 1 is a flow chart of a method for controlling a safety warning sign according to an embodiment of the present disclosure. Figure 6 As shown, when the user confirms that the accident warning information is true, the safety warning sign 120 broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system 110 and / or the traveler system 140. The control method includes:

[0117] In step S601, when an emergency or breakdown occurs on the road, the safety warning sign 120 is turned on.

[0118] In step S602 , the positioning module 250 locates the vehicle position information of the vehicle associated with the safety warning sign 120 .

[0119] In step S603 , the GSM communication module 280 sends an application request for broadcasting accident warning information to the cloud control platform 130 .

[0120] In step S604 , the cloud control platform 130 forwards the application request for broadcasting accident warning information to the safety warning sign management platform 150 .

[0121] In step S605 , the user of the safety warning sign 120 is searched on the safety warning sign management platform 150 .

[0122] In step S606 , the safety warning sign management platform 150 (for example, through the safety warning sign APP corresponding to the safety warning sign 120 ) confirms with the user of the safety warning sign 120 whether the accident warning information is true.

[0123] In step S607 , the safety warning sign management platform 150 receives a confirmation result returned by the user of the safety warning sign 120 , and forwards the confirmation result to the safety warning sign 120 via the cloud control platform 130 .

[0124] In step S608, when the user confirms that the accident warning information is true, the safety warning sign 120 signs the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain the signature data of the accident warning information, and the accident warning information includes vehicle fault information and vehicle location information. When the user confirms that the accident warning information is not true, the safety warning sign 120 ends the process.

[0125] In step S609 , the V2X module 260 of the safety warning sign 120 broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system 110 and / or the traveler system 140 (eg, at a certain frequency).

[0126] In step S610, the vehicle system 110 and / or the traveler system 140 verifies the signature data of the accident warning information according to the data verification process.

[0127] In step S611, the vehicle system 110 and / or the traveler system 140 will notify the vehicle owner and / or the traveler of the accident warning information if the signature verification is passed.

[0128] In step S612, the GSM communication module 280 of the safety warning sign 120 sends the signature data of the accident warning information and the accident warning information to the cloud control platform 130 (for example, at a certain frequency). The communication connection between the safety warning sign 120 and the cloud control platform 130 can be established when the safety warning sign 120 is started, or before sending the accident warning information to the cloud control platform 130.

[0129] In step S613, the cloud control platform 130 verifies the signature data of the accident warning information according to the data verification process.

[0130] In step S614, the cloud control platform 130 controls the display of the accident warning information on the map APP 170 if the signature verification is passed.

[0131] Figure 7 FIG. 1 is a flow chart of a method for controlling a safety warning sign according to an embodiment of the present disclosure. Figure 7 As shown, after the safety warning sign 120 broadcasts the signature data and the accident warning information of the accident warning information to the vehicle system 110 and / or the traveler system 140, the user confirms whether the accident warning information is true, and the control method includes:

[0132] In step S701, when an emergency or breakdown occurs on the road, the safety warning sign 120 is turned on.

[0133] In step S702 , the positioning module 250 locates the vehicle position information of the vehicle associated with the safety warning sign 120 .

[0134] In step S703, the safety warning sign 120 signs the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain signature data of the accident warning information.

[0135] In step S704 , the safety warning sign 120 broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system 110 and / or the traveler system 140 (eg, at a certain frequency).

[0136] In step S705, the vehicle system 110 and / or the traveler system 140 verifies the signature data of the accident warning information according to the data verification process.

[0137] In step S706, the vehicle system 110 and / or the traveler system 140 will notify the vehicle owner and / or the traveler of the accident warning information if the signature verification is passed.

[0138] In step S707 , the vehicle system 110 and / or the traveler system 140 reports the accident warning information to the cloud control platform 130 .

[0139] In step S708 , the cloud control platform 130 forwards the accident warning information to the safety warning sign management platform 150 .

[0140] In step S709 , the user of the safety warning sign 120 is searched on the safety warning sign management platform 150 .

[0141] In step S710, the safety warning sign management platform 150 (for example, through the safety warning sign APP corresponding to the safety warning sign 120) confirms with the user whether the accident warning information is true. If the user confirms that the accident warning information is not true, step S711 is executed, and if the user confirms that the accident warning information is true, step S713 is executed.

[0142] In step S711 , when the user confirms that the accident warning information is not true, the safety warning sign management platform 150 sends the safety warning sign abnormal information to the cloud control platform 130 .

[0143] In step S712 , the cloud control platform 130 controls the digital identity service platform 160 to revoke the digital certificate of the safety warning sign 120 .

[0144] In step S713 , when the user confirms that the accident warning information is true, the safety warning sign management platform 150 sends the normal information of the safety warning sign to the cloud control platform 130 .

[0145] In step S714 , the cloud control platform 130 sends the normal information of the safety warning sign to the safety warning sign 120 .

[0146] In step S715 , the safety warning sign 120 sends the signature data of the accident warning information and the accident warning information to the cloud control platform 130 (for example, at a certain frequency).

[0147] In step S716, the cloud control platform 130 verifies the signature data of the accident warning information according to the data verification process.

[0148] In step S717, the cloud control platform 130 controls the display of the accident warning information on the map APP 170 if the signature verification is passed.

[0149] Figure 8 FIG. 8 is a schematic diagram of a control device for a safety warning sign according to an embodiment of the present disclosure. The control device 800 may be located in the safety warning sign 120. Figure 8 As shown, the control device 800 includes an accident warning information acquisition unit 810, an accident warning information broadcasting unit 820 and an accident warning information sending unit 830.

[0150] The accident warning information acquisition unit 810 is used to sign the accident warning information of the vehicle related to the safety warning sign according to the data signing process when using the safety warning sign to warn nearby vehicles, and obtain the signature data of the accident warning information, wherein the accident warning information includes vehicle fault information and vehicle location information.

[0151] The accident warning information broadcasting unit 820 is used to broadcast the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, wherein the vehicle-mounted system and / or the traveler system verifies the signature data of the accident warning information according to the data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification is passed.

[0152] The accident warning information sending unit 830 is used to send the signature data of the accident warning information and the accident warning information to the cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to the data verification process, and controls the display of the accident warning information on the map software if the verification passes.

[0153] Since the control method of the disclosed embodiment is used to control the safety warning sign to notify the car owner and / or traveler of the accident warning information, the specific process of controlling the display of the accident warning information in the map software has been described in detail above and will not be repeated here.

[0154] The present disclosure also provides an electronic device, such as Fig. 9 As shown, it includes a memory 920, a processor 910, and a program stored in the memory 920 and executable on the processor 910. When the program is executed by the processor 910, each process of each embodiment of the above-mentioned control method can be implemented, and the same technical effect can be achieved. To avoid repetition, it will not be described here.

[0155] Those skilled in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructions, or by controlling related hardware through instructions, and the instructions can be stored in a computer-readable storage medium and loaded and executed by a processor. To this end, the embodiments of the present disclosure also provide a storage medium, on which a computer program or instruction is stored, and when the computer program or instruction is executed by the processor, each process of each embodiment of the above control method can be implemented.

[0156] Since the instructions stored in the storage medium can execute the steps in the control method provided in the embodiment of the present disclosure, the beneficial effects that can be achieved by the control method provided in the embodiment of the present disclosure can be achieved. For details, please refer to the previous embodiment, which will not be repeated here. The specific implementation of each of the above operations can be referred to the previous embodiment, which will not be repeated here.

[0157] In summary, when the safety warning sign is used to warn nearby vehicles, the accident warning information of the vehicle related to the safety warning sign is signed according to the data signing process to obtain the signature data of the accident warning information. The accident warning information includes vehicle fault information and vehicle location information. The signature data of the accident warning information and the accident warning information are broadcast to the on-board system and / or the traveler system. The on-board system and / or the traveler system verifies the signature data of the accident warning information according to the data verification process. If the verification is passed, the accident warning information is notified to the car owner and / or the traveler. In this way, based on the vehicle-road cooperative communication network, the accident warning information can be broadcast to the on-board system and / or the traveler system without the need for a mobile communication network. The on-board system and / or the traveler system within the near-field communication range can receive the accident warning information. At the same time, the communication delay between the safety warning sign and the on-board system and / or the traveler system is reduced, thereby reducing the occurrence rate of secondary accidents. In addition, the signature data of the accident warning information and the accident warning information are sent to the cloud control platform, and the signature data of the accident warning information is verified on the cloud control platform according to the data verification process. If the verification is passed, the accident warning information is controlled to be displayed on the map software. In this way, the reliability of nearby vehicles receiving accident warning information is improved through the dual warning method of broadcasting the accident warning information to the vehicle system and / or the traveler system based on the vehicle-road cooperative communication network + controlling the display of the accident warning information on the map software through the cloud control platform, thereby reducing the occurrence rate of secondary accidents. Through digital identity authentication technology, the signature data of the accident warning information is transmitted between the safety warning sign, the vehicle system and / or the traveler system and the cloud control platform, which improves the data security of nearby vehicles receiving accident warning information.

[0158] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly illustrating the present disclosure, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present disclosure.

Claims

1. A method for controlling a safety warning sign, the method comprising: In the case of using a safety warning sign to warn nearby vehicles, signing the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain the signature data of the accident warning information, wherein the accident warning information includes vehicle fault information and vehicle location information; broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, wherein the vehicle-mounted system and / or the traveler system verifies the signature data of the accident warning information according to the data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification passes; The signature data of the accident warning information and the accident warning information are sent to a cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to a data verification process, and controls the display of the accident warning information on the map software if the verification passes.

2. The control method according to claim 1, wherein: Before broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the control method further includes: Sending an application request for broadcasting accident warning information to the cloud control platform, wherein the application request includes the accident warning information; Among them, the cloud control platform forwards the application request to the safety warning sign management platform, searches for the user of the safety warning sign on the safety warning sign management platform, and when the user confirms that the accident warning information is true, forwards the application request review approval information to the safety warning sign via the cloud control platform, so that when the user confirms that the accident warning information is true, the safety warning sign broadcasts the signature data of the accident warning information and the accident warning information to the vehicle system and / or traveler system.

3. The control method according to claim 1, wherein: After broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the control method further includes: The vehicle-mounted system and / or the traveler system reports the accident warning information to the cloud control platform; Among them, the cloud control platform forwards the accident warning information to the safety warning sign management platform, searches for the user of the safety warning sign on the safety warning sign management platform, and sends the safety warning sign abnormal information to the cloud control platform when the user confirms that the accident warning information is not true. The cloud control platform controls the digital identity service platform to revoke the digital certificate of the safety warning sign.

4. The control method according to claim 1, wherein: The method of broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system includes: The signature data of the accident warning information and the accident warning information are broadcast to nearby roadside units, and the nearby roadside units broadcast the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system.

5. The control method according to claim 1, wherein: The sending the signature data of the accident warning information and the accident warning information to the cloud control platform includes: After broadcasting the signature data of the accident warning information and the accident warning information to the vehicle-mounted system and / or the traveler system, the vehicle-mounted system and / or the traveler system forwards the signature data of the accident warning information and the accident warning information to the cloud control platform.

6. The control method according to claim 1, wherein: In the case of using the safety warning sign to warn nearby vehicles, the accident warning information of the vehicle related to the safety warning sign is signed according to the data signing process, and before obtaining the signature data of the accident warning information, the control method also includes: The Internet of Vehicles device sends a certificate application request to the digital identity service platform, wherein the certificate application request includes device information of the Internet of Vehicles device, and the Internet of Vehicles device includes any one of the cloud control platform, the safety warning sign, the vehicle system, and the traveler system; When the digital identity service platform verifies that the certificate application request is legitimate, generating a digital certificate for the connected vehicle device, sending the digital certificate to a third-party platform, and issuing the digital certificate to the connected vehicle device; The Internet of Vehicles device stores the digital certificate in a secure carrier; Signing the certificate revocation list according to the data signature process on the digital identity service platform to obtain a digital signature of the certificate revocation list; Sending a certificate revocation list download request to the digital identity service platform by the Internet of Vehicles device; The Internet of Vehicles device receives the certificate revocation list and its digital signature issued by the digital identity service platform, verifies the digital signature of the certificate revocation list according to the data verification process, and stores the certificate revocation list in a secure carrier if the verification passes.

7. The control method according to claim 6, wherein: The data signing process includes: The data sender uses the private key of the digital certificate of the data sender to sign the data to be sent, thereby obtaining the digital signature of the data to be sent; The data sender packages the data to be sent, the digital signature and the digital certificate of the data sender into a data packet; The data verification process includes: Verify at the data receiving party whether the digital certificate of the data sending party is legitimate; If the digital certificate of the data sender is legal, checking at the data receiver whether the digital certificate has been revoked; When the digital certificate of the data sender is within the validity period, the data receiver verifies the digital signature of the data to be sent using the public key of the digital certificate of the data sender, and obtains the data to be sent if the verification passes.

8. A control device for a safety warning sign, the control device comprising: An accident warning information acquisition unit is used to sign the accident warning information of the vehicle related to the safety warning sign according to the data signing process to obtain the signature data of the accident warning information when the safety warning sign is used to warn nearby vehicles, and the accident warning information includes vehicle fault information and vehicle location information; An accident warning information broadcasting unit, used for broadcasting the signature data of the accident warning information and the accident warning information to a vehicle-mounted system and / or a traveler system, wherein the vehicle-mounted system and / or the traveler system verifies the signature data of the accident warning information according to a data verification process, and notifies the vehicle owner and / or the traveler of the accident warning information if the verification passes; The accident warning information sending unit is used to send the signature data of the accident warning information and the accident warning information to the cloud control platform, wherein the cloud control platform verifies the signature data of the accident warning information according to the data verification process, and controls the display of the accident warning information on the map software if the verification passes.

9. A safety warning sign, comprising Structural components, including a base, guide arms, reflective strips, and a remote control module; A positioning module, used to obtain vehicle location information of the vehicle associated with the safety warning sign; The control device as described in claim 8 implements the steps of the method as described in any one of claims 1 to 7, controls the notification of accident warning information to the vehicle owner and / or traveler, and controls the display of the accident warning information on the map software.

10. A control system for a safety warning sign, comprising: A safety warning sign, comprising a control device as claimed in claim 8, implementing the steps of the method as claimed in any one of claims 1 to 7, notifying a vehicle owner and / or a traveler of accident warning information, and controlling the display of the accident warning information on a map software; An on-board system, which is installed in a vehicle passing by and is used to communicate with the safety warning sign and other roadside units to achieve vehicle-road cooperative communication between the vehicle and the roadside infrastructure; A traveler system, which is installed on a smart terminal of a traveler passing by, and is used to communicate with the safety warning sign and other roadside units to achieve vehicle-road cooperative communication between the smart terminal and the roadside infrastructure; The cloud control platform is used to provide safety management functions for the vehicle-road cooperative communication between the safety warning sign and the vehicle-mounted system and / or the traveler system.

11. An electronic device, comprising: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program implements the steps of the method according to any one of claims 1 to 7 when executed by the processor.

12. A storage medium having a computer program or instruction stored thereon, wherein the computer program or instruction, when executed by a processor, implements the steps of the method according to any one of claims 1 to 7.

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