One-way street priority passage system and method based on vehicle networking

Abstract

The present invention provides a one-way street priority passage system and method based on the Internet of Vehicles. The system includes: a vehicle-side terminal, configured to send a request to a roadside terminal to obtain a roadside terminal number, and to send priority passage request information to a cloud server; after receiving the passage authority, if reverse passage is allowed, the vehicle-side terminal can reverse through the one-way street while ensuring safety; if reverse passage is not allowed, the vehicle-side terminal cannot reverse through the one-way street; a cloud server, configured to obtain the geographical location information of the one-way street corresponding to the roadside terminal based on the roadside terminal number; and obtain the passage authority of the vehicle-side terminal on the one-way street; if reverse passage is not allowed, the cloud server directly sends the passage authority that does not allow reverse passage to the vehicle-side terminal; if reverse passage is allowed, the cloud server calculates the distance between the vehicle-side terminal and the one-way street, and when the distance reaches or falls below a given threshold, the cloud server sends the passage authority that allows reverse passage to the vehicle-side terminal.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle networking, and in particular to a one-way street priority passage system and method based on the vehicle networking. Background Art

[0002] A one-way street is a lane that allows traffic in only one direction. As a traffic management measure requiring minimal investment, rapid effectiveness, and ease of operation, one-way traffic has been widely adopted in developed Western countries. In recent years, many Chinese cities have also actively adopted one-way traffic, converting some two-way streets into one-way lanes. This has significantly alleviated traffic pressure and reduced congestion. One-way streets are the most direct, effective, and economical way to address urban traffic congestion and increase traffic capacity, ensuring overall smooth traffic flow through local restrictions.

[0003] Everything has its pros and cons. For example, if the destination is in the opposite direction of travel on a one-way street, the vehicle may need to take a longer detour, which can be inconvenient. While the added time and energy costs are acceptable for ordinary vehicles, they can have a significant impact on the operations of special vehicles (such as ambulances, fire trucks, police cars, and emergency rescue vehicles) whose missions require every second to be effective. Although the "Road Traffic Safety Law of the People's Republic of China" and other laws and regulations allow these special vehicles to safely drive against traffic on one-way streets without restrictions on speed, route, direction, or traffic lights, the current lack of effective communication and coordination between vehicles, roads, other vehicles, and pedestrians means that these vehicles can easily cause traffic jams and / or accidents.

[0004] How to enable special vehicles performing tasks to reverse safely and quickly on one-way streets in the context of the current rapid development of vehicle networking technology is an urgent problem to be solved. Summary of the Invention

[0005] In order to enable vehicles in need to reverse safely and quickly on one-way streets under the current background of rapid development of vehicle networking technology, the present invention provides a one-way street priority passage system and method based on the vehicle networking. By using digital public key certificate authentication technology and combining it with vehicle networking technology, one-way street priority passage based on the vehicle networking is made safe, reliable, simple and efficient.

[0006] In one aspect, the present invention provides a one-way street priority system based on the Internet of Vehicles, comprising: a cloud server, at least one roadside terminal and at least one vehicle terminal;

[0007] The vehicle-side terminal is configured to send a request to the road-side terminal to obtain the road-side terminal number, and to send priority passage request information to the cloud server; the priority passage request information includes vehicle-side related information and the road-side terminal number; the vehicle-side related information includes the vehicle-side geographical location information; after receiving the passage authority, if the passage authority of the vehicle-side terminal allows reverse passage, the vehicle-side terminal passes through the one-way street in the reverse direction while ensuring safety; if the passage authority of the vehicle-side terminal does not allow reverse passage, the vehicle-side terminal cannot pass through the one-way street in the reverse direction, but chooses other roads to pass through on its own; and, in response to the cloud server sending a request to the vehicle-side terminal to continuously provide the geographical location information of the vehicle-side terminal in real time, continuously collect the geographical location of the vehicle-side terminal in real time and send it to the cloud server in real time;

[0008] The roadside terminal is configured to return its own roadside terminal number to the vehicle terminal after receiving a request from the vehicle terminal; the roadside terminal includes a roadside terminal security module; the roadside terminal security module is configured to store the roadside terminal number, the geographical location information of the roadside terminal corresponding to the roadside terminal number, and the geographical location information of the one-way street corresponding to the roadside terminal;

[0009] The cloud server is used to obtain the geographic location information of the one-way street corresponding to the roadside end according to the roadside end number; and obtain the passage permission of the vehicle end on the one-way street according to the relevant information of the vehicle end; if the passage permission of the vehicle end is not allowed to pass in the opposite direction, the cloud server directly sends the passage permission that does not allow reverse passage to the vehicle end; if the passage permission of the vehicle end is allowed to pass in the opposite direction, the cloud server calculates the distance between the geographic location of the vehicle end and the geographic location of the one-way street, and when the distance reaches or is lower than a given threshold, the cloud server sends the passage permission that allows reverse passage to the vehicle end; when the distance does not reach or is higher than a given threshold, the cloud server sends a request to the vehicle end to continuously provide the geographic location information of the vehicle end in real time, so as to calculate the distance between the geographic location of the vehicle end and the geographic location of the one-way street in real time until the distance reaches or is lower than the given threshold.

[0010] Furthermore, the cloud server is further configured to send vehicle-side related information of the vehicle to the roadside end corresponding to the one-way street when the vehicle-side traffic authority allows reverse traffic;

[0011] The roadside end is also used to reflect the vehicle-side related information.

[0012] Furthermore, the cloud server includes a cloud storage module and a cloud security module; the vehicle end includes a vehicle end security module;

[0013] The cloud storage module is used to pre-store the roadside end number, the geographical location information of the roadside end corresponding to the roadside end number, the geographical location information of the one-way street corresponding to the roadside end, vehicle-related information, and the access rights corresponding to the vehicle-related information, for query by the cloud server;

[0014] The cloud security module, the vehicle-side security module and the road test-side security module are respectively used to provide password service functions and secure storage functions for their respective terminals.

[0015] Furthermore, the roadside end includes at least one of a priority information display board, a voice prompt module, a marking projection module, and an intelligent road stud; and a roadside end short-distance direct communication module; the vehicle end includes a vehicle end short-distance direct communication module;

[0016] The priority information display board is used to display vehicle-side related information of the vehicle side;

[0017] The voice prompt module is used to broadcast the vehicle-side related information of the vehicle side;

[0018] The marking projection module is used to project reverse traffic information on the road surface area of ​​the one-way street where the vehicle needs to have reverse priority passage;

[0019] The intelligent road stud is used to indicate the direction of the reverse priority passage of the vehicle end on the road surface and / or roadside area of ​​the one-way street where the vehicle end needs to have reverse priority passage.

[0020] In another aspect, the present invention provides a one-way street priority method based on the Internet of Vehicles, comprising:

[0021] The vehicle end communicates with the roadside end and sends a request to the roadside end to obtain the roadside end number;

[0022] The vehicle sends a priority access request to the cloud server; the priority access request includes vehicle-related information and a roadside terminal number; the vehicle-related information includes the vehicle's geographic location information, as well as the vehicle license plate and / or vehicle identification number;

[0023] The cloud server obtains the geographic location information of the one-way street corresponding to the roadside terminal according to the roadside terminal number; and obtains the access permission of the vehicle terminal on the one-way street according to the vehicle terminal related information, specifically including: the cloud server searches for the vehicle license plate and / or vehicle identification code of the vehicle terminal in locally pre-stored vehicle license plates and / or vehicle identification codes; if the license plate and / or vehicle identification code are found, the cloud server then queries the access permission of the vehicle terminal corresponding to the vehicle license plate and / or vehicle identification code on the one-way street; if the license plate and / or vehicle identification code are not found, the cloud server directly returns the access permission not allowing reverse traffic to the vehicle terminal;

[0024] If the vehicle's access permission does not allow reverse travel, the cloud server directly sends the access permission not allowing reverse travel to the vehicle. After receiving the access permission, the vehicle cannot reverse travel on the one-way street, but chooses another road to bypass it.

[0025] If the vehicle's access permission allows reverse passage, the cloud server calculates the distance between the vehicle's geographic location and the geographic location of the one-way street. When the distance reaches or falls below a given threshold, the cloud server sends the access permission allowing reverse passage to the vehicle. After receiving the access permission, the vehicle passes through the one-way street in reverse while ensuring safety. When the distance does not reach or rises above a given threshold, the cloud server sends a request to the vehicle to continuously provide the vehicle's geographic location information in real time, so as to calculate the distance between the vehicle's geographic location and the one-way street in real time until the distance reaches or falls below the given threshold.

[0026] Furthermore, if the vehicle's access permission allows reverse traffic, the cloud server will also send the vehicle-related information of the vehicle to the roadside end corresponding to the one-way street, so that the roadside end can reflect the vehicle-related information.

[0027] Furthermore, when there are multiple vehicle terminals, the vehicle terminal related information further includes: time information of collecting the geographical location information of the vehicle terminal;

[0028] Correspondingly, the method further includes:

[0029] The cloud server queues the priority passage request information of multiple vehicle terminals according to the geographic location information of each vehicle terminal and the time information of collecting the said geographic location information; among them, the closer the geographic location of the vehicle terminal is to the one-way street that requires priority passage, the higher the queue; the earlier the geographic location information is collected, the higher the queue; then the cloud server obtains the passage permission of each vehicle terminal on the one-way street according to the relevant information of each vehicle terminal in the order of the queue.

[0030] Furthermore, the priority passage request information further includes digital signature information, which is obtained by the vehicle end digitally signing the vehicle end related information and the roadside end number using its own private key;

[0031] Correspondingly, before the cloud server obtains the vehicle's right to pass through the one-way street based on the vehicle-related information, the method further includes:

[0032] The cloud server uses the public key of the vehicle to verify the digital signature information. If the verification fails, the cloud server directly returns the access permission that does not allow reverse passage to the vehicle.

[0033] Furthermore, before the cloud server returns the access authority of the vehicle terminal to the vehicle terminal, the method further includes:

[0034] The cloud server uses its own private key to digitally sign the access permission of the vehicle end to generate a digital signature of the access permission;

[0035] Correspondingly, the cloud server returns the vehicle's access authority and the digital signature of the access authority to the vehicle;

[0036] Correspondingly, after receiving the access permission and the digital signature of the access permission, the vehicle side uses the public key of the cloud server to verify the digital signature of the access permission. If the verification fails, a request is sent to the cloud server to regenerate and send the access permission and the digital signature of the access permission; if the verification is successful, the vehicle side performs corresponding operations according to the access permission.

[0037] Furthermore, if the vehicle-side traffic authority allows reverse traffic, the cloud server may further include:

[0038] The cloud server uses its own private key to digitally sign the vehicle-related information to generate a digital signature of the vehicle-related information;

[0039] Correspondingly, the cloud server returns the vehicle-side related information and the digital signature of the vehicle-side related information to the roadside end corresponding to the one-way street;

[0040] Correspondingly, after the roadside end receives the vehicle-side related information and the digital signature of the vehicle-side related information, it uses the public key of the cloud server to verify the digital signature of the vehicle-side related information. If the verification fails, it sends a request to the cloud server to regenerate and send the vehicle-side related information and the digital signature of the vehicle-side related information; if the verification is successful, the roadside end reflects the vehicle-side related information.

[0041] Beneficial effects of the present invention:

[0042] (1) By applying the Internet of Vehicles and network technology, the roadside terminal number is first obtained through information transmission between the vehicle terminal and the roadside terminal, and then through information transmission between the cloud server and the vehicle terminal, it can be achieved that the vehicle terminal that meets the requirements has priority to pass in the opposite direction on a one-way street;

[0043] (2) By applying the Internet of Vehicles and network technologies, while achieving priority passage for vehicles on the one-way street in the opposite direction, vehicles on the roadside can also be allowed to understand the situation of vehicles currently and / or about to enter, and adjust their own positions, directions and / or avoidance in a timely manner, so that the vehicles can safely and smoothly achieve priority passage.

[0044] (3) The cloud server can better and more intelligently determine which vehicle or vehicles to prioritize based on the location and time information reported by the vehicle, further improving the efficiency of priority passage;

[0045] (4) The cloud server, roadside terminal and vehicle terminal ensure the identity of the sender and the authenticity and integrity of the information sent by verifying the public key certificate and digital signature, preventing the information from being illegally tampered with. Timestamps and random numbers can also be applied to the sent information to prevent the information from being replayed and ensure the security of the information. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 This is a schematic diagram of a one-way priority system based on the Internet of Vehicles provided by an embodiment of the present invention;

[0047] Figure 2 The second structural diagram of a one-way street priority passage system based on the Internet of Vehicles provided by an embodiment of the present invention;

[0048] Figure 3 The third structural diagram of a one-way street priority passage system based on the Internet of Vehicles provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] Example 1

[0051] like Figure 1 As shown, an embodiment of the present invention provides a one-way street priority passage system based on the Internet of Vehicles, characterized by comprising: a cloud server, at least one roadside terminal and at least one vehicle terminal; the cloud server is communicatively connected to the roadside terminal; the vehicle terminal is wirelessly connected to the roadside terminal; the cloud server is wirelessly connected to the vehicle terminal;

[0052] The vehicle-side terminal is configured to send a request to the road-side terminal to obtain the road-side terminal number, and to send priority passage request information to the cloud server; the priority passage request information includes vehicle-side related information and the road-side terminal number; the vehicle-side related information includes the vehicle-side geographical location information; after receiving the passage authority, if the passage authority of the vehicle-side terminal allows reverse passage, the vehicle-side terminal passes through the one-way street in the reverse direction while ensuring safety; if the passage authority of the vehicle-side terminal does not allow reverse passage, the vehicle-side terminal cannot pass through the one-way street in the reverse direction, but chooses other roads to pass through on its own; and, in response to the cloud server sending a request to the vehicle-side terminal to continuously provide the geographical location information of the vehicle-side terminal in real time, continuously collect the geographical location of the vehicle-side terminal in real time and send it to the cloud server in real time;

[0053] The roadside end is used to return its own roadside end number to the vehicle end after receiving the request from the vehicle end;

[0054] Specifically, in actual applications, a roadside end number may be set for each roadside end, and the roadside end number is used to uniquely identify the roadside end.

[0055] In one possible implementation, the roadside terminal includes a roadside short-distance direct communication module; the vehicle terminal includes a vehicle short-distance direct communication module. The roadside terminal and the vehicle terminal are communicatively connected via the roadside short-distance direct communication module and the vehicle short-distance direct communication module.

[0056] Specifically, the road-side short-distance direct communication module and the vehicle-side short-distance direct communication module are both C-V2X PC5 short-distance direct communication modules, and the road-side short-distance direct communication module and the vehicle-side short-distance direct communication module are communicatively connected within the communication range of the C-V2X PC5 short-distance direct communication interface; the C in C-V2X refers to cellular (Cellular), and the C-V2X is a vehicle wireless communication technology based on the evolution of cellular network communication technologies such as 3G / 4G / 5G, and includes two communication interfaces: one is the short-distance direct communication interface (PC5) between vehicles, people, and roads, and the other is the communication interface (Uu) between terminals and base stations, which can achieve reliable communication over long distances and a larger range. C-V2X is a communication technology based on the 3GPP global unified standard, including LTE-V2X and 5G-V2X. From the perspective of technological evolution, LTE-V2X supports smooth evolution to 5G-V2X; the communication range is determined by factors such as the characteristics of the C-V2X PC5 short-range direct communication interface itself, design indicators and / or the impact of the communication environment on the communication signal.

[0057] The cloud server is used to obtain the geographic location information of the one-way street corresponding to the roadside end according to the roadside end number; and obtain the passage permission of the vehicle end on the one-way street according to the relevant information of the vehicle end; if the passage permission of the vehicle end is not allowed to pass in the opposite direction, the cloud server directly sends the passage permission that does not allow reverse passage to the vehicle end; if the passage permission of the vehicle end is allowed to pass in the opposite direction, the cloud server calculates the distance between the geographic location of the vehicle end and the geographic location of the one-way street, and when the distance reaches or is lower than a given threshold, the cloud server sends the passage permission that allows reverse passage to the vehicle end; when the distance does not reach or is higher than a given threshold, the cloud server sends a request to the vehicle end to continuously provide the geographic location information of the vehicle end in real time, so as to calculate the distance between the geographic location of the vehicle end and the geographic location of the one-way street in real time until the distance reaches or is lower than the given threshold.

[0058] Specifically, if the cloud server learns from the vehicle-side related information that the vehicle-side is a special vehicle that needs to go in the opposite direction on a one-way street due to a mission, the corresponding access permission for the vehicle-side is to allow reverse passage; on the contrary, when the vehicle-side is not a special vehicle that needs to go in the opposite direction on a one-way street due to a mission, the corresponding access permission is not to allow reverse passage.

[0059] In one possible implementation, the cloud server includes a cloud storage module configured to pre-store vehicle-related information and the corresponding access permissions for query by the cloud server. Furthermore, to enable the cloud server to locate the corresponding roadside end based on one-way street information, or to locate the corresponding one-way street based on roadside end information, the cloud storage module in the cloud server may store the roadside end number, the geographic location information of the roadside end corresponding to the roadside end number, and the geographic location information of the one-way street corresponding to the roadside end.

[0060] Specifically, the vehicle-side related information includes the vehicle license plate and / or vehicle identification code. In addition, it may also include the vehicle's direction of travel and / or geographic location information; in addition, it may also include information such as the vehicle's body color, vehicle type, and vehicle speed. The vehicle license plate, commonly known as a license plate or license plate, is a plate hung on the front and rear of the vehicle, usually made of aluminum, iron, plastic, or paper, and engraved with the vehicle's registration number, registration area, or other relevant information. The vehicle identification number (VIN; also known as the chassis number) is a unique number consisting of several letters and / or numbers used on a car, which can identify the car's manufacturer, engine, chassis serial number, and other performance information.

[0061] It should be noted that the one-way street can be identified by its geographic location information, one-way street number, and / or one-way street name. The geographic location information of the one-way street includes, but is not limited to, the geographic location information of the starting point and / or ending point of the one-way street. The geographic location information includes, but is not limited to, geographic coordinates. Thus, the cloud server presets and maintains a correspondence between the geographic location information of the starting point and / or ending point of the one-way street and the geographic location information and roadside end number of the roadside end, so that information on one side can be found using the geographic location information and / or roadside end number of the other side.

[0062] Example 2

[0063] On the basis of the above embodiment 1, Figure 2 As shown, in an embodiment of the present invention, a one-way priority passage system based on the Internet of Vehicles is provided. The cloud server is further configured to send vehicle-side related information of the vehicle to the roadside terminal corresponding to the one-way passage when the vehicle-side passage authority allows reverse passage. The roadside terminal is further configured to reflect the vehicle-side related information.

[0064] In this embodiment of the present invention, the purpose of using the roadside terminal to reflect the vehicle-related information is to enable non-local vehicles and pedestrians to understand the situation of current and / or impending vehicles, and to promptly adjust their position, direction, and / or avoidance measures. Such avoidance measures include but are not limited to waiting, yielding, and / or detouring. Non-local vehicles refer to vehicles other than the vehicle that needs to have priority on the one-way street due to its reverse direction.

[0065] As an implementable embodiment, the roadside end includes at least one of a priority information display board, a voice prompt module, a marking projection module, and an intelligent road stud, so as to reflect the vehicle-side related information through them. The priority information display board is used to display the vehicle-side related information of the vehicle, such as the vehicle's driving direction and speed, the distance from the priority information display board, etc.; the voice prompt module is used to broadcast the vehicle-side related information of the vehicle. The marking projection module is used to project reverse traffic information on the road surface area of ​​the one-way street where the vehicle needs reverse priority traffic. The intelligent road stud is used to indicate the direction of reverse priority traffic of the vehicle on the road surface and / or roadside area of ​​the one-way street where the vehicle needs reverse priority traffic.

[0066] Specifically, the wrong-way traffic information includes, but is not limited to, a wrong-way direction indicator marking opposite to the original one-way traffic direction and the vehicle-side related information. The wrong-way direction indicator marking is used to temporarily cover or replace the original one-way traffic direction indicator marking on the original one-way road surface; the vehicle-side related information can be projected next to the wrong-way direction indicator marking. The marking projection module includes, but is not limited to, a projection lamp; the projection lamp can be a laser projection lamp and / or an LED projection lamp. The marking projection module is mainly used to project the reverse traffic information onto the road surface under natural conditions of weak light at night or during the day; the reverse direction indicator marking is projected by the projection lamp with appropriate brightness and color, and its brightness and size should be sufficient to cover or replace the original one-way traffic direction indicator marking, so as to indicate the lane and reverse direction that the vehicle end that needs to pass through the one-way street in the reverse direction should pass through, and at the same time, it can also serve as a reminder to other social vehicles and pedestrians that there will be vehicles that will reverse in the lane and direction indicated by the reverse direction indicator marking, so that social vehicles and pedestrians can immediately adjust their own positions and directions and avoid them in time.

[0067] The smart road stud can indicate the direction of the reverse priority passage at the vehicle end by luminous colors or luminous colored arrows. The color can be red, green or other colors. The smart road stud can include a light-emitting component. The light-emitting component can be a colored LED light-emitting material.

[0068] It should be noted that the setting rules for the priority information display board, voice prompt module, marking projection module and smart road stud are as follows: they can be set at the exit and / or entrance of a one-way street, and more can be set up in the entire section of the one-way street according to actual needs, such as near the location of a crosswalk in the middle of the section.

[0069] Example 3

[0070] In addition to the above embodiments, an embodiment of the present invention provides a one-way priority system based on an Internet of Vehicles, wherein the roadside terminal further includes a traffic signal controller. Thus, the roadside terminal controls the traffic signal controller based on the vehicle-related information sent by the cloud server to reflect the vehicle-related information.

[0071] Specifically, the traffic signal controller is a core component of the traffic signal control system and serves as the execution unit located on the road. Its core function is to control traffic signals (i.e., changing the sequence of traffic signals, adjusting timing, and controlling the operation of traffic lights). It also performs functions such as traffic information collection, communication, and intersection monitoring. The traffic signal controller controls traffic lights, which are located at the entrance and / or exit of a one-way street. Additional traffic lights can be installed along the entire section of a one-way street as needed, such as at a crosswalk in the middle of the road. Traffic lights include, but are not limited to, traffic lights for vehicles and pedestrians and traffic lights for priority traffic in the opposite direction.

[0072] Example 4

[0073] Based on the above embodiments, Figure 3 As shown, an embodiment of the present invention provides a one-way priority passage system based on the Internet of Vehicles, wherein the cloud server includes a cloud security module; the vehicle end includes a vehicle end security module; the roadside end includes a roadside end security module; the above-mentioned security modules are respectively used to provide cryptographic service functions and secure storage functions for their respective ends.

[0074] Specifically, cryptographic service functions include, but are not limited to, random number generation, digital signature calculations, digital signature verification, encryption and decryption, session key generation, digital digest generation, digital certificate verification, and digital certificate revocation list queries; digital certificates are also called public key certificates. Each of the aforementioned security modules is provided with a secure storage area to provide secure storage functionality. The secure storage area can be used to store digital certificates, private keys, and other important information and data; such other important information and data include, but are not limited to, the vehicle identification code and / or roadside terminal number. For the vehicle-side security module, the vehicle identification code is embedded in the secure storage area of ​​the vehicle-side security module by the vehicle manufacturer before the vehicle leaves the factory. Once embedded in the secure storage area of ​​the vehicle-side security module, the vehicle identification code provides read-only functionality, and the vehicle user cannot modify the vehicle identification code embedded in the secure storage area of ​​the vehicle-side security module. For the roadside terminal security module, the roadside terminal number is stored in the secure storage area of ​​the roadside terminal security module. The roadside terminal also stores the geographic location information of the roadside terminal and the geographic location information of the one-way street where the roadside terminal is located.

[0075] As an implementable embodiment, the cloud security module, the roadside security module and the vehicle-side security module are all security smart chips. The commercial cryptographic algorithms supported by the security smart chip include but are not limited to one or more of SM1, SM2, SM3, SM4 and SM9; the supported internationally commonly used cryptographic algorithms include but are not limited to one or more of 3DES, AES, RSA, SHA-1 and SHA-256; the security smart chip supports the storage of digital certificates; the security smart chip provides a secure storage area to support the secure storage of important information; the security smart chip supports the generation of random numbers; the digital certificate module also maintains a certificate revocation list and provides a certificate revocation list query function.

[0076] Furthermore, the cloud server also includes a digital certificate module; the digital certificate module generates and stores public key certificates for the cloud server, the roadside terminal, and the vehicle terminal, respectively. Specifically, the digital certificate module writes the roadside terminal's public key certificate and the cloud server's root certificate into the roadside terminal's roadside terminal security module, either offline or online; the digital certificate module writes the vehicle terminal's public key certificate and the cloud server's root certificate into the vehicle terminal's vehicle terminal security module, either offline or online; the public key certificates of the roadside terminal and the vehicle terminal are signed by the cloud server's root certificate.

[0077] Correspondingly, the cloud server, the roadside end and the vehicle end each store a private key corresponding to the public key in its corresponding public key certificate; the private key of the cloud server is stored in the secure storage area of ​​the digital certificate module or the cloud security module; the private key of the roadside end is stored in the secure storage area of ​​the roadside end security module; and the private key of the vehicle end is stored in the secure storage area of ​​the vehicle end security module.

[0078] Correspondingly, the cloud server is pre-installed with a correspondence between the roadside terminal number and the roadside terminal's public key certificate, so that the roadside terminal's public key certificate can be retrieved and obtained through the roadside terminal number.

[0079] Correspondingly, the cloud server is pre-installed with a correspondence between the vehicle identification code and the vehicle license plate, so that the vehicle license plate information of the vehicle side can be retrieved and obtained through the vehicle identification code, and the vehicle identification code information of the vehicle side can also be retrieved and obtained through the vehicle license plate; the cloud server is also pre-installed with a correspondence between the vehicle identification code and / or vehicle license plate and the public key certificate of the vehicle side, so that the public key certificate of the vehicle side can be retrieved and obtained through the vehicle identification code and / or vehicle license plate.

[0080] Furthermore, the vehicle terminal also includes a vehicle terminal positioning module; the vehicle terminal positioning module is used to obtain the geographic location information of the vehicle terminal.

[0081] Example 5

[0082] On the basis of the above embodiments, an embodiment of the present invention provides a one-way street priority passage system based on the Internet of Vehicles, which further defines the one-way street. Specifically, the one-way street includes at least two lanes, and the leftmost lane of the original travel direction of the one-way street is set as a variable travel direction lane.

[0083] Specifically, when there is no vehicle that needs to pass in the opposite direction, the leftmost lane maintains the same traffic direction as other lanes; when there is a vehicle that needs to pass in the opposite direction, the leftmost lane becomes a lane opposite to the original traffic direction. At this time, the leftmost lane is changed into a dedicated reverse lane for vehicles that need to pass in the opposite direction, and private vehicles continue to pass in the original direction through the other lanes.

[0084] In one of the above embodiments, when the traffic light also includes a traffic light for indicating reverse priority passage, the leftmost lane corresponds to the traffic light for indicating reverse priority passage, and the other lanes correspond to the traffic lights for indicating social vehicles and pedestrians. When there is no vehicle end that needs reverse priority passage and needs to pass in reverse, the traffic signal sequence and adjustment timing of the traffic light for indicating reverse priority passage are consistent with those of the traffic light for indicating social vehicles and pedestrians; when there is a vehicle end that needs reverse priority passage and needs to pass in reverse, the traffic signal sequence and adjustment timing of the traffic light for indicating reverse priority passage are used to cooperate with the vehicle end that needs reverse priority passage to pass in reverse, specifically, a green light may be displayed for the vehicle end that needs reverse priority passage, and a red light may be displayed for social vehicles and pedestrians in the original direction of passage.

[0085] In one of the above embodiments, when the roadside end includes a line marking projection module, correspondingly, when a vehicle that needs priority passage in the opposite direction needs to pass in the opposite direction, the line marking projection module projects the opposite passage information to the leftmost lane. Preferably, the leftmost lane does not have a pre-set indicator marking indicating the direction of travel of the one-way lane; the pre-set indicator marking indicating the direction of travel of the one-way lane refers to a road marking formed by directly spraying on the one-way road surface by hot melting; when there is no vehicle end that needs to pass in the opposite direction and needs to pass in the opposite direction, the line marking projection module projects the original one-way lane direction indicator marking in the form of light and shadow to the leftmost lane. At this time, the direction indicated by the one-way lane direction indicator marking is consistent with the direction indicated by the pre-set indicator marking indicating the direction of travel of the one-way lane on the other lanes; when there is a vehicle end that needs to pass in the opposite direction and needs to pass in the opposite direction, the line marking projection module projects reverse traffic information to the leftmost lane. At this time, the direction indicated by the indicator marking indicating the direction of travel projected by the line marking projection module on the one-way lane is opposite to the direction indicated by the pre-set indicator marking indicating the direction of travel of the one-way lane on the other lanes.

[0086] Example 6

[0087] Corresponding to the above-mentioned one-way street priority passage system based on the Internet of Vehicles, an embodiment of the present invention provides a one-way street priority passage method based on the Internet of Vehicles, including the following steps:

[0088] The vehicle end communicates with the roadside end and sends a request to the roadside end to obtain the roadside end number;

[0089] The vehicle sends a priority passage request message to the cloud server; the priority passage request message includes vehicle-related information and roadside terminal number; the vehicle-related information includes the vehicle's geographical location information;

[0090] Specifically, after receiving the roadside terminal number sent by the roadside terminal, the vehicle terminal obtains the geographical location information of the vehicle terminal in real time, for example, through a vehicle terminal positioning module.

[0091] The cloud server obtains the geographical location information of the one-way street corresponding to the roadside terminal according to the roadside terminal number; and obtains the passage authority of the vehicle terminal on the one-way street according to the vehicle terminal related information;

[0092] If the vehicle's access permission does not allow reverse travel, the cloud server directly sends the access permission not allowing reverse travel to the vehicle. After receiving the access permission, the vehicle cannot reverse travel on the one-way street, but chooses another road to bypass it.

[0093] If the vehicle's access permission allows reverse passage, the cloud server calculates the distance between the vehicle's geographic location and the geographic location of the one-way street. When the distance reaches or falls below a given threshold, the cloud server sends the access permission allowing reverse passage to the vehicle. After receiving the access permission, the vehicle passes through the one-way street in reverse while ensuring safety. When the distance does not reach or rises above a given threshold, the cloud server sends a request to the vehicle to continuously provide the vehicle's geographic location information in real time, so as to calculate the distance between the vehicle's geographic location and the one-way street in real time until the distance reaches or falls below the given threshold.

[0094] Specifically, when the distance does not reach or is higher than the threshold, the cloud server sends a request to the vehicle to continuously provide the geographic location information of the vehicle in real time; after receiving the request, the vehicle continuously collects the geographic location of the vehicle in real time and sends it to the cloud server in real time; after receiving the geographic location information of the vehicle, the cloud server also calculates the distance between the geographic location of the vehicle and the geographic location of the end point of the one-way street in real time. When the distance reaches or falls below the threshold, the cloud server performs the operation described above when the distance reaches or falls below the threshold, that is, sends the access permission to the vehicle. It should be noted that the threshold can be stipulated or specified in advance by the relevant department and set in the vehicle; the relevant department includes but is not limited to the traffic management department; as an example, the threshold can be 500 meters, 300 meters, 200 meters or other distances.

[0095] As an implementable embodiment, the vehicle-side related information includes a vehicle license plate and / or a vehicle identification code; correspondingly, the cloud server obtains the vehicle-side access permission on the one-way street based on the vehicle-side related information, specifically including: the cloud server searches for the vehicle license plate and / or vehicle identification code of the vehicle-side in the locally pre-stored vehicle license plates and / or vehicle identification codes; if found, then queries the vehicle-side access permission on the one-way street corresponding to the vehicle license plate and / or vehicle identification code; if not found, then directly returns to the vehicle-side the access permission that does not allow reverse passage.

[0096] Example 7

[0097] Based on the above embodiment, an embodiment of the present invention provides a one-way street priority method based on the Internet of Vehicles, further comprising the following steps:

[0098] If the vehicle's access permission allows reverse traffic, the cloud server will also send the vehicle-related information of the vehicle to the roadside end corresponding to the one-way street, so that the roadside end can reflect the vehicle-related information.

[0099] Specifically, the roadside end controls at least one of the traffic signal control machine, priority information display board, marking projection module, intelligent road stud, and voice prompt module according to the vehicle-side relevant information to reflect the vehicle-side relevant information and prompt social vehicles and pedestrians to take avoidance measures. The avoidance measures include but are not limited to waiting in place, giving way and / or detouring.

[0100] Preferably, if the vehicle-side traffic authority allows reverse traffic, the cloud server further includes:

[0101] The cloud server uses its own private key to digitally sign the vehicle-related information to generate a digital signature of the vehicle-related information;

[0102] Correspondingly, the cloud server returns the vehicle-side related information and the vehicle-side related information digital signature to the roadside end corresponding to the one-way street; correspondingly, after receiving the vehicle-side related information and the vehicle-side related information digital signature, the roadside end uses the public key of the cloud server (i.e., the public key in the public key certificate) to verify the vehicle-side related information digital signature. If the verification fails, a request is sent to the cloud server to regenerate and send the vehicle-side related information and the vehicle-side related information digital signature; if the verification is successful, the roadside end reflects the vehicle-side related information.

[0103] Example 8

[0104] On the basis of the above embodiments, an embodiment of the present invention provides a one-way street priority passage method based on the Internet of Vehicles, which is applicable to situations where there are multiple vehicle terminals.

[0105] When there are multiple vehicle terminals, the vehicle terminal related information includes not only the geographical location information of the vehicle terminal but also the time information of collecting the geographical location information;

[0106] Correspondingly, when multiple vehicles send priority passage request information to the cloud server requesting priority passage in the reverse direction on the one-way street, the cloud server performs the following operations:

[0107] First, priority access requests from multiple vehicles are queued based on their geographic location information and the time at which the location information was collected. The closer the location of the vehicle is to the one-way street requiring priority access, the higher the queue. The earlier the location information was collected, the higher the queue.

[0108] As a feasible implementation method, the vehicles are first queued according to the distance between the geographical location of each vehicle end and the geographical location of the one-way street, with the vehicle end having the closer distance being in front; if the distance is the same, the vehicles are queued according to the time when the request information is sent from each vehicle end, with the vehicle end having the earlier time being in front.

[0109] Then, each vehicle terminal obtains the right to pass on the one-way street according to its respective priority passage request information in the order of queuing.

[0110] Example 9

[0111] To improve the communication security and reliability of the entire method, in the one-way priority passage method based on the Internet of Vehicles provided in an embodiment of the present invention, the priority passage request information also includes digital signature information. The digital signature information is obtained by the vehicle side digitally signing the vehicle side related information and the roadside side number using its own private key.

[0112] Correspondingly, after receiving the priority passage request information, the cloud server first uses the public key of the vehicle to verify the digital signature information. If the verification fails, it directly returns the passage permission that does not allow reverse passage to the vehicle.

[0113] Specifically, before the cloud server compares the vehicle-side related information (such as the vehicle license plate and / or vehicle identification code) contained in the priority passage request information with the vehicle-side related information (such as the vehicle license plate and / or vehicle identification code) pre-set and stored in the cloud storage module, the cloud server uses the public key in the vehicle-side public key certificate to verify the digital signature information of the vehicle-side related information and the geographic location information of the one-way street; if the verification fails, the cloud server directly returns the passage permission that does not allow reverse passage to the vehicle.

[0114] Preferably, before the cloud server returns the access authority of the vehicle end to the vehicle end, the method further includes: the cloud server digitally signs the access authority of the vehicle end using its own private key to generate a digital signature of the access authority;

[0115] Correspondingly, the cloud server returns the access authority and the digital signature of the access authority to the vehicle side; correspondingly, after receiving the access authority and the digital signature of the access authority, the vehicle side uses the public key of the cloud server (that is, the public key in the public key certificate) to verify the digital signature of the access authority. If the verification fails, a request is sent to the cloud server to regenerate and send the access authority and the digital signature of the access authority; if the verification is successful, the vehicle side performs corresponding operations according to the access authority.

[0116] Preferably, if the vehicle-side traffic permission allows reverse traffic, the cloud server, before sending the vehicle-side related information of the vehicle-side to the roadside end corresponding to the one-way street, further comprises: the cloud server digitally signing the vehicle-side related information using its own private key to generate a digital signature of the vehicle-side related information;

[0117] Correspondingly, the cloud server returns the vehicle-side related information and the vehicle-side related information digital signature to the roadside end corresponding to the one-way street; correspondingly, after the roadside end receives the vehicle-side related information and the vehicle-side related information digital signature, it uses the public key of the cloud server to verify the vehicle-side related information digital signature. If the verification fails, a request is sent to the cloud server to regenerate and send the vehicle-side related information and the vehicle-side related information digital signature; if the verification is successful, the roadside end reflects the vehicle-side related information.

[0118] In the above embodiments, preferably, the vehicle side, the cloud server and the roadside side may also add timestamps and random numbers when sending information to each other, and perform corresponding verification on the receiving side to prevent the information from being replayed.

[0119] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A one-way priority system based on the Internet of Vehicles, characterized by: include: A cloud server, at least one roadside terminal, and at least one vehicle terminal; The vehicle-side terminal is configured to send a request to the roadside terminal to obtain the roadside terminal number, and to send priority access request information to the cloud server; the priority access request information includes vehicle-side related information, the roadside terminal number, and digital signature information, the digital signature information being obtained by the vehicle-side terminal digitally signing the vehicle-side related information and the roadside terminal number using its own private key; the vehicle-side related information includes the vehicle-side geographical location information; After receiving the access authorization and the digital signature of the access authorization, verify the digital signature of the access authorization using the public key of the cloud server. If the verification fails, send a request to the cloud server to regenerate and send the access authorization and the digital signature of the access authorization; If the signature verification is successful, the vehicle performs corresponding operations based on the access permission, specifically including: if the access permission of the vehicle allows reverse passage, the vehicle passes the one-way street in reverse while ensuring safety; if the access permission of the vehicle does not allow reverse passage, the vehicle cannot pass the one-way street in reverse, but chooses another road to bypass; and, in response to the cloud server sending a request for the vehicle to provide the vehicle's geographic location information in real time and continuously, continuously collect the vehicle's geographic location in real time and send it to the cloud server in real time; The roadside end is used to return its own roadside end number to the vehicle end after receiving a request from the vehicle end; it is also used to verify the digital signature of the vehicle end related information and the vehicle end related information using the public key of the cloud server after receiving the vehicle end related information and the digital signature of the vehicle end related information; if the verification fails, it sends a request to the cloud server to regenerate and send the vehicle end related information and the digital signature of the vehicle end related information; if the verification succeeds, the roadside end reflects the vehicle end related information; the roadside end includes a roadside end security module; the roadside end security module is used to store the roadside end number, the geographical location information of the roadside end corresponding to the roadside end number, and the geographical location information of the one-way street corresponding to the roadside end; The cloud server is used to verify the digital signature information using the public key of the vehicle side. If the verification fails, the cloud server directly returns the access permission that does not allow reverse passage to the vehicle side. If the verification succeeds, the geographical location information of the one-way street corresponding to the road side side is obtained according to the road side side number; and the access permission of the vehicle side on the one-way street is obtained according to the relevant information of the vehicle side, and the access permission of the vehicle side is digitally signed using its own private key to generate a digital signature of the access permission, and the access permission of the vehicle side and the digital signature of the access permission are returned to the vehicle side together; if the access permission of the vehicle side is not allowed to pass in the reverse direction, the cloud server directly sends the access permission that does not allow reverse passage to the vehicle side; if the access permission of the vehicle side is allowed to pass in the reverse direction, the cloud server calculates the The distance between the geographic location of the vehicle end and the geographic location of the one-way street, when the distance reaches or is lower than a given threshold, the cloud server will send the access permission for reverse passage to the vehicle end; when the distance does not reach or is higher than the given threshold, the cloud server sends a request to the vehicle end to continuously provide the geographic location information of the vehicle end in real time, so as to calculate the distance between the geographic location of the vehicle end and the geographic location of the one-way street in real time until the distance reaches or is lower than the given threshold; it is also used to use its own private key to digitally sign the vehicle-end related information when the access permission of the vehicle end is to allow reverse passage, generate a digital signature of the vehicle-end related information, and send the vehicle-end related information and the vehicle-end related information digital signature together to the roadside end corresponding to the one-way street.

2. The one-way priority passage system based on the Internet of Vehicles according to claim 1, characterized in that: The cloud server includes a cloud storage module and a cloud security module; the vehicle end includes a vehicle end security module; The cloud storage module is used to pre-store the roadside end number, the geographical location information of the roadside end corresponding to the roadside end number, the geographical location information of the one-way street corresponding to the roadside end, vehicle-related information, and the access rights corresponding to the vehicle-related information, for query by the cloud server; The cloud-side security module, the vehicle-side security module and the roadside security module are respectively used to provide cryptographic service functions and secure storage functions for their respective terminals.

3. The one-way priority passage system based on the Internet of Vehicles according to claim 1, characterized in that: The roadside end includes at least one of a priority information display board, a voice prompt module, a marking projection module and an intelligent road stud; and a roadside end short-distance direct communication module; the vehicle end includes a vehicle-end short-distance direct communication module; The priority information display board is used to display vehicle-side related information of the vehicle side; The voice prompt module is used to broadcast the vehicle-side related information of the vehicle side; The marking projection module is used to project reverse traffic information on the road surface area of ​​the one-way street where the vehicle needs to have reverse priority passage; The intelligent road stud is used to indicate the direction of the reverse priority passage of the vehicle end on the road surface and / or roadside area of ​​the one-way street where the vehicle end needs to have reverse priority passage.

4. A one-way street priority method based on the Internet of Vehicles, characterized in that: include: The vehicle end communicates with the roadside end and sends a request to the roadside end to obtain the roadside end number; The vehicle sends a priority access request to the cloud server; the priority access request includes vehicle-related information, a roadside terminal number, and a digital signature. The digital signature is obtained by the vehicle using its own private key to digitally sign the vehicle-related information and the roadside terminal number. The vehicle-related information includes the vehicle's geographic location information, as well as the vehicle license plate and / or vehicle identification number. The cloud server uses the vehicle's public key to verify the digital signature information. If the verification fails, the cloud server directly returns the access permission that does not allow reverse passage to the vehicle. If the signature verification is successful, the geographical location information of the one-way street corresponding to the roadside end is obtained according to the roadside end number; Obtaining the vehicle's access permission on the one-way street based on the vehicle's relevant information, specifically including: the cloud server searches for the vehicle's license plate and / or vehicle identification code in locally pre-stored vehicle license plates and / or vehicle identification codes; if found, then querying the vehicle's access permission on the one-way street corresponding to the vehicle license plate and / or vehicle identification code; if not found, directly returning to the vehicle a permission that prohibits reverse traffic; The cloud server uses its own private key to digitally sign the vehicle's access permission, generates a digital signature for the access permission, and returns the vehicle's access permission and the digital signature together to the vehicle. If the vehicle's access permission does not allow reverse passage, the cloud server directly sends the access permission that does not allow reverse passage to the vehicle. If the vehicle's access permission allows reverse traffic, the cloud server calculates the distance between the vehicle's geographic location and the geographic location of the one-way street. When the distance reaches or falls below a given threshold, the cloud server sends the vehicle a request for reverse traffic permission. When the distance does not reach or rises above the given threshold, the cloud server sends the vehicle a request for continuous, real-time provision of the vehicle's geographic location information, so as to calculate the distance between the vehicle's geographic location and the one-way street in real time until the distance reaches or falls below the given threshold. When the vehicle's access permission allows reverse traffic, the cloud server uses its own private key to digitally sign the vehicle-related information, generates a vehicle-related information digital signature, and sends the vehicle-related information and the vehicle-related information digital signature together to the roadside terminal corresponding to the one-way street; After receiving the access permission and the digital signature of the access permission, the vehicle side uses the public key of the cloud server to verify the digital signature of the access permission. If the verification fails, a request is sent to the cloud server to regenerate and send the access permission and the digital signature of the access permission. If the verification succeeds, the vehicle side performs corresponding operations according to the access permission, including: if the access permission of the vehicle side allows reverse passage, the vehicle side reverses on the one-way street while ensuring safety; if the access permission of the vehicle side does not allow reverse passage, the vehicle side cannot reverse on the one-way street, but chooses other roads to bypass it; and, in response to the cloud server sending a request to the vehicle side to continuously provide the geographical location information of the vehicle side in real time, the geographical location of the vehicle side is continuously collected in real time and sent to the cloud server in real time; After the roadside end receives the vehicle-side related information and the digital signature of the vehicle-side related information, it uses the public key of the cloud server to verify the digital signature of the vehicle-side related information. If the verification fails, it sends a request to the cloud server to regenerate and send the vehicle-side related information and the digital signature of the vehicle-side related information; if the verification is successful, the roadside end reflects the vehicle-side related information.

5. The one-way street priority method based on the Internet of Vehicles according to claim 4, characterized in that: When there are multiple vehicle terminals, the vehicle terminal related information further includes: time information of collecting the geographical location information of the vehicle terminal; Correspondingly, the method further includes: The cloud server queues the priority passage request information of multiple vehicle terminals according to the geographic location information of each vehicle terminal and the time information of collecting the said geographic location information; among them, the closer the geographic location of the vehicle terminal is to the one-way street that requires priority passage, the higher the queue; the earlier the geographic location information is collected, the higher the queue; then the cloud server obtains the passage permission of each vehicle terminal on the one-way street according to the relevant information of each vehicle terminal in the order of the queue.

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