CN115966078A

CN115966078A - Priority passing method and system based on V2I

Info

Publication number: CN115966078A
Application number: CN202211475248.4A
Authority: CN
Inventors: 李鑫; 刘长河; 廖正赟; 李平; 王佳; 周小欠
Original assignee: Zhengzhou Xinda Jiean Information Technology Co Ltd
Current assignee: Zhengzhou Xinda Jiean Information Technology Co Ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-14

Abstract

The invention belongs to the technical field of vehicle passing control, and particularly relates to a priority passing method and a priority passing system based on V2 I.A vehicle owner registers and applies for a target vehicle license plate to an authority department, and a cloud server generates a digital watermark by using a specific number and a digital signature and embeds the digital watermark into a vehicle license plate image; when a target vehicle travels to the roadside end shooting area range, the roadside end collects a vehicle number plate image and uploads the vehicle number plate image and roadside end data to a cloud server; the cloud server identifies and extracts a target vehicle number plate in the vehicle number plate image, and matches the extracted target vehicle number plate with road side end data in pre-stored data to verify whether the target vehicle has the passing authority on a corresponding one-way road; and feeding back the verification result to the target vehicle and the roadside end, so that the target vehicle has reverse priority on a one-way road. The invention applies the digital watermarking technology to the vehicle number plate and combines the V2I vehicle networking technology to realize the preferential reverse traffic of the target vehicle one-way road.

Description

Priority passing method and system based on V2I

Technical Field

The invention belongs to the technical field of vehicle passing control, and particularly relates to a priority passing method and system based on V2I.

Background

A one-way lane is a lane that allows travel in only one direction. One-way traffic is widely adopted in western developed countries as a traffic management measure with less investment, quick response and simple and convenient operation. In recent years, many cities in China also actively adopt one-way traffic, and part of two-way roads are directly changed into one-way roads, so that the traffic pressure of the roads is relieved to a great extent, and the congestion situation is reduced. The one-way road is the most direct, effective and economical method for solving the urban traffic jam and increasing the traffic capacity, and the global smoothness is guaranteed by local limitation.

Things always have their own benefits while they have their own disadvantages. For example, if the destination to be reached is opposite to the direction allowed for a one-way road, the vehicle may need to detour around other roads that are relatively far away, which may cause some inconvenience to the vehicle. For ordinary social vehicles, time and energy consumption costs are more acceptable, but certain influence is caused on the actions of special vehicles (such as ambulances, fire trucks, police cars, engineering emergency vehicles and the like) which have to compete for minutes in task execution. Although the special vehicle for executing the task can move backwards on the one-way road without being limited by the driving speed, the driving route, the driving direction and the signal of the command lamp under the condition of ensuring the safety according to the relevant regulations, the special vehicle for executing the task does not have a good communication and coordination mechanism between the current vehicles and the road, other vehicles, pedestrians and other traffic participants, and the like, so that the special vehicle for executing the task can move backwards on the one-way road to easily cause traffic jam and/or accidents. How to realize safe and rapid retrograde motion of a special vehicle for executing a task on a one-way road by combining a digital watermarking technology under the background of great development of the current Internet of vehicles technology is a problem which needs to be solved urgently.

Disclosure of Invention

Therefore, the invention provides a priority passing method and system based on V2I, which apply a digital watermarking technology to a vehicle number plate and combine a V2I vehicle networking technology to realize that a target vehicle of a specific task can pass in a priority reverse direction by using a one-way road, thereby ensuring safe and reliable passing and simultaneously realizing simple and efficient implementation of a scheme.

According to the design scheme provided by the invention, a priority passing method based on V2I is provided, the reverse priority passing of a one-way road of a vehicle with a specific task is realized through information interaction among a cloud server of the Internet of vehicles, a vehicle end and a road side end, and the realization process comprises the following contents:

a vehicle owner registers and applies for a target vehicle license plate with an authority department, a cloud server generates a vehicle license plate image according to registration application data, carries out digital signature on a specific number of the vehicle license plate, generates a digital watermark by using the specific number and the digital signature and embeds the digital watermark into the vehicle license plate image, prestores the target vehicle license plate, the vehicle license plate which shares priority traffic authority on a corresponding one-way road, a corresponding relation between a road side end and the one-way road and a corresponding one-way road end point position of a road side end in the cloud server, and sets a vehicle license plate image shooting area range at the road side end;

when the target vehicle travels to the roadside end shooting area range, triggering the roadside end to collect the vehicle number plate image and uploading the vehicle number plate image and roadside end data to a cloud server;

the cloud server identifies and extracts a target vehicle number plate in the vehicle number plate image, and matches the extracted target vehicle number plate and road side data in pre-stored data to verify whether the target vehicle has the right of passage on the corresponding one-way road; and feeding back the verification result to the target vehicle and the roadside end; the road side end generates priority traffic indication information, so that the target vehicle is prompted to avoid other vehicles and pedestrians while giving priority to the target vehicle in the reverse direction on a one-way road.

As a priority passing method based on V2I in the present invention, further, the cloud server identifies and extracts a target vehicle number plate in the vehicle number plate image, matches the extracted target vehicle number plate and road side data in pre-stored data to verify whether the target vehicle enjoys passing authority on a corresponding one-way road, including: firstly, extracting vehicle number plate information by identifying a vehicle number plate image, and searching a one-way road position corresponding to a road side end according to road side end data; and then, comparing the extracted vehicle number plate information with a pre-stored vehicle number plate, if the extracted vehicle number plate information is compared with a related vehicle number plate, searching whether the target vehicle has a priority passing right on a corresponding one-way road at a roadside end, if so, continuously identifying the digital watermark in the vehicle number plate image, extracting the information in the digital watermark and verifying the digital signature, if the verification is successful, judging that the target vehicle has the priority passing right on the corresponding one-way road, otherwise, judging that the target vehicle does not have the priority passing right on the corresponding one-way road.

As a priority passing method based on V2I, further, aiming at a target vehicle with priority passing authority, the cloud server acquires the geographic position of the target vehicle in real time, compares the distance between the geographic position of the target vehicle and the terminating position of a corresponding one-way road with a preset threshold value, allows the target vehicle to pass in a reverse priority mode on the corresponding one-way road if the distance reaches or is smaller than the preset threshold value, and feeds a passing authority verification result back to the target vehicle and a road side end; if the distance is higher than the threshold value, continuously acquiring the geographic position of the target vehicle, updating and judging the distance between the geographic position of the target vehicle and the geographic position of the end point of the one-way road to be traveled, continuously judging the distance and the preset threshold value until the distance reaches or is smaller than the preset threshold value, allowing the target vehicle to pass in a reverse-direction priority mode on the corresponding one-way road, and feeding a passing permission verification result back to the target vehicle and the road side end.

As the priority passing method based on V2I, further, information safety interaction is carried out among the road side end, the vehicle end and the Internet of vehicles cloud server by using a safety intelligent chip, wherein the safety intelligent chip carries out data encryption processing by using a cryptographic algorithm.

As a priority passing method based on V2I, the cryptographic algorithm includes but is not limited to: one or more of SM1, SM2, SM3, SM4, SM9, 3DES, AES, RSA, SHA-1, and SHA-256.

As the priority passing method based on the V2I, when the vehicle end comprises a plurality of target vehicles, the target vehicles are queued according to the distance between the geographic position of each target vehicle and the end point of the one-way road and the time precedence relationship of the target vehicles at the current geographic position, and the cloud server verifies the passing authority of the target vehicles according to the queuing precedence sequence, wherein in the queuing processing, the front position of the target vehicle with the closer distance is arranged in the queue according to the distance between the geographic position of the target vehicle and the end point of the one-way road, and if the distances are the same, the front position of the target vehicle with the first request time is arranged in the queue according to the time precedence of the current geographic position.

Further, based on the above method, the present invention further provides a priority passing system based on V2I, comprising:

the method comprises the steps that a road side end corresponding to a one-way road and installed on a preset area of the corresponding one-way road is used for collecting vehicle license plate images in the preset area range and feeding the vehicle license plate images back to a cloud server in a V2I, and priority passing indication information is generated according to priority passing permission of the corresponding one-way road sent by the cloud server so as to prompt a corresponding target vehicle to pass on the one-way road in a reverse direction and priority passing, and prompt other vehicles and pedestrians to avoid;

the vehicle end is arranged on the vehicle, a vehicle owner registers and applies for a target vehicle number plate to an authoritative department, and the vehicle end enjoys the priority passing authority on the corresponding one-way road sent by the cloud server according to the vehicle number plate;

the cloud server stores a target vehicle number plate in advance, the vehicle number plate which has the priority access right on the corresponding one-way road, the corresponding relation between the road side end and the one-way road, and the end position of the road side end corresponding to the one-way road, generates a vehicle number plate image according to the registration application data, digitally signs the specific number of the vehicle number plate, generates a digital watermark by using the specific number and the digital signature, embeds the digital watermark into the vehicle number plate image, verifies the target vehicle which has the priority access right on the corresponding one-way road by acquiring the vehicle number plate image sent by the road side end, and sends the related information of the target vehicle to the road side end corresponding to the one-way road and the target vehicle.

As a priority access system based on V2I in the present invention, further, the cloud server further includes: a digital certificate module, a cloud security module, a cloud digital watermark module and a cloud storage module, wherein,

the digital certificate module is used for generating and storing a public key certificate for the cloud server and signing and issuing public key certificates of a road side end and a vehicle side;

the cloud security module is used for providing password encryption and decryption and secure storage of information interaction data for the cloud server by using the secure intelligent chip;

the cloud digital watermark module is used for carrying out digital signature on a specific number in the vehicle license plate image, and generating a digital watermark by utilizing the specific number and the digital signature to be embedded into the vehicle license plate image;

and the cloud storage module is used for verifying the priority passing authority of the target vehicle by calling and inquiring related information through the cloud server by presetting and storing the number plate of the target vehicle, the number plate of the vehicle which has the priority passing authority on the corresponding one-way road, the corresponding relation between the roadside and the one-way road and the end point position of the roadside corresponding one-way road.

As a priority traffic system based on V2I of the present invention, the roadside end further includes: a road side end safety module, a road side end camera module, a traffic signal machine, a priority information display board and a marking line projection module, wherein,

the roadside end security module is used for providing password encryption and decryption and safe storage of the information interaction data for the roadside end by utilizing the safe intelligent chip;

the road side camera module is used for acquiring vehicle license plate images in a preset area range;

the traffic signal machine is used for controlling the traffic signal lamps by changing the sequence of the road traffic signals and adjusting the timing;

the priority information display board is used for displaying relevant data for other vehicles and pedestrians to know the current and/or upcoming reverse passing target vehicle, and the relevant data comprises the driving direction, the speed and the distance from the one-way road sign of the target vehicle;

the marking projection module is used for projecting reverse priority traffic data to the road surface of a one-way road on which a vehicle-end target vehicle is to run, wherein the reverse priority traffic data comprises reverse direction indication markings and target vehicle related data.

As the priority passing system based on V2I, the vehicle end further comprises a vehicle end safety module and a vehicle end positioning module, wherein,

the vehicle-end safety module is used for providing password encryption and decryption and safe storage of information interaction data for the vehicle end by utilizing the safe intelligent chip;

and the vehicle end positioning module is used for acquiring vehicle geographic position data.

The invention has the beneficial effects that:

firstly, the cloud server, the road side end and the vehicle end ensure the identity of an information sender and the authenticity and integrity of the sent information by verifying the digital signature, prevent the information from being illegally tampered, and prevent the information from being attacked by replay by applying a timestamp and a random number in the sent information, thereby ensuring the safety of the information.

Secondly, through the application of V2I vehicle networking and network technology, the safe information transmission can be realized, and simultaneously, social vehicles and pedestrians can know the current and/or upcoming vehicle end conditions through modules such as a traffic signal controller, a priority information display board, a marking line projection module, an intelligent spike, a voice prompt module and the like on a one-way road, and the positions, the directions and/or the avoidance of the social vehicles and the pedestrians can be adjusted in time, so that the vehicle end can safely and smoothly realize the prior traffic.

And thirdly, the cloud server can better and more intelligently determine which vehicle end or the vehicle ends are preferentially served according to the positioning information and the time information reported by the vehicle ends, and the preferential traffic efficiency is further improved.

Fourth, the present invention embeds digital watermark information in the image of the vehicle number plate to thereby generate a secure vehicle number plate. Whether the image content of the safe vehicle license plate is complete or not and whether the image content is tampered or not can be determined through extraction and corresponding verification of the digital watermark, and whether the image content is issued by the cloud server or not can be determined, so that the vehicle license plate needing reverse preferential passage is guaranteed to be subjected to special verification, issuance and manufacture, belongs to a special vehicle for executing a specific task, the safe passage order can be effectively guaranteed, and the preferential passage of a target vehicle of the specific task is safer and more reliable.

Description of the drawings:

FIG. 1 is a schematic diagram of a priority traffic flow based on V2I in the embodiment;

FIG. 2 is a schematic diagram of a V2I-based priority traffic system in an embodiment.

The specific implementation mode is as follows:

in order to make the objects, technical solutions and advantages of the present invention clearer and more obvious, the present invention is further described in detail below with reference to the accompanying drawings and technical solutions.

In the embodiment of the present disclosure, referring to fig. 1, a priority passing method based on V2I is provided, in which a one-way reverse priority passing of a vehicle with a specific task is realized through information interaction among a cloud server of an internet of vehicles, a vehicle end and a road side end, and an implementation process includes the following steps:

s101, a vehicle owner registers and applies for a target vehicle license plate with an authority department, a cloud server generates a vehicle license plate image according to registration application data, digital signatures are carried out on specific numbers of the vehicle license plate, digital watermarks are generated by means of the specific numbers and the digital signatures and embedded into the vehicle license plate image, the target vehicle license plate, the vehicle license plate which shares priority traffic authority on a corresponding one-way road, the corresponding relation between a road side end and the one-way road, and the end point position of the road side end corresponding to the one-way road are stored in the cloud server in advance, and a vehicle license plate image shooting area range is set at the road side end;

s102, when the target vehicle runs to the roadside end shooting area range, triggering the roadside end to collect the vehicle number plate image and uploading the vehicle number plate image and roadside end data to a cloud server;

s103, the cloud server identifies and extracts the target vehicle number plate in the vehicle number plate image, and matches the extracted target vehicle number plate and the road side data in pre-stored data to verify whether the target vehicle has the right of passage on the corresponding one-way road; and feeding back the verification result to the target vehicle and the roadside end; the road side end generates priority traffic indication information, so that the target vehicle is prompted to avoid other vehicles and pedestrians while giving priority to the target vehicle in the reverse direction on a one-way road.

In V2I (Vehjcle to Infrastructure), V means a vehicle, and I means an Infrastructure, and the existing V2I car networking technology enables information exchange between the vehicle and the Infrastructure. In the embodiment of the scheme, by applying the V2I internet of vehicles and a network technology, the information security transmission is realized, social vehicles and pedestrians can know the current and/or upcoming situation of the vehicle end, and the position, direction and/or avoidance of the social vehicles and the pedestrians can be adjusted in time, so that the target vehicles of the vehicle end executing special tasks can safely and smoothly realize the reverse preferential traffic of a single-lane.

As a preferred embodiment, further, the cloud server identifies and extracts the target vehicle number plate in the vehicle number plate image, matches the extracted target vehicle number plate and the road side data in the pre-stored data to verify whether the target vehicle has the right of passage on the corresponding one-way road, and includes: firstly, extracting vehicle number plate information by identifying a vehicle number plate image, and searching a one-way road position corresponding to a roadside end according to roadside end data; then, the extracted vehicle number plate information is compared with the pre-stored vehicle number plates, if the relevant vehicle number plates are compared, whether the target vehicle has the priority passing authority on the corresponding one-way road at the roadside end is searched, if the target vehicle has the priority passing authority, the digital watermark in the vehicle number plate image is continuously identified, the information in the digital watermark is extracted, the digital signature is checked, if the check is successful, the target vehicle is judged to have the priority passing authority on the corresponding one-way road, and if not, the target vehicle does not have the priority passing authority on the corresponding one-way road.

After the vehicle end is in wireless communication connection with the cloud server, vehicle end related information can be immediately sent to the cloud server, and geographic position information of the vehicle end can be continuously sent to the cloud server in real time; the cloud server can master the running track of the vehicle end according to the geographical position information of the vehicle end. When the vehicle end enters a preset area range of the roadside end, the roadside end collects images of the vehicle number plate of the vehicle end and sends the images of the vehicle number plate and the roadside end number to a cloud server. The cloud server identifies the image of the vehicle number plate and extracts the information of the vehicle number plate; and the cloud server searches the geographical position information of the one-way road corresponding to the roadside end according to the roadside end number.

The cloud server compares the vehicle number plate information with the vehicle number plates preset and stored in the cloud storage module, and if the relevant vehicle number plate is not found in the cloud storage module, the cloud server directly returns a passing permission which does not allow reverse passing to the vehicle end and the road side end; and if the related vehicle license plate is found, then the passing authority of the vehicle end corresponding to the vehicle license plate on the one-way road is found. And if the passing permission of the vehicle end is that reverse passing is not allowed, the cloud server sends the passing permission which is not allowed to pass reversely to the vehicle end and the road side end. If the passing authority of the vehicle end is that reverse passing is allowed, the cloud server continuously tries to identify the digital watermark contained in the image of the vehicle license plate.

If the digital watermark identification fails, judging that the vehicle license plate corresponding to the image of the vehicle license plate is an illegal vehicle license plate, and returning a passing authority which does not allow reverse passing to the vehicle end and the road side end by the cloud server; specifically, if the digital watermark information is failed to be identified, it is indicated that the image of the vehicle license plate does not contain the digital watermark information or the digital watermark information is damaged and cannot be identified.

If the digital watermark is successfully identified, the cloud server extracts digital watermark information contained in the image of the vehicle license plate to obtain specific number information of the vehicle license plate and a digital signature of the vehicle license plate; and the cloud server checks the digital signature of the vehicle license plate according to the specific number information of the vehicle license plate. If the verification fails, the vehicle license plate corresponding to the vehicle license plate image is judged to be an illegal vehicle license plate, and the cloud server returns a passing permission that reverse passing is not allowed to the vehicle end and the road side end. If the verification is successful, determining that the image of the vehicle number plate is complete and not tampered and is a legal and safe vehicle number plate issued by the cloud server; and then, the cloud server calculates the distance between the geographic position of the vehicle end and the geographic position of the end point of the one-way road.

When the distance reaches or is lower than a threshold value, the cloud server sends a passing permission allowing reverse passing to the vehicle end, and the vehicle end passes through the single-way road in a reverse way under the condition of ensuring safety; the cloud server simultaneously sends the vehicle end related information to a roadside end corresponding to the one-way road, and then the roadside end controls a traffic signal controller, a priority information display board and a marking line projection module according to the vehicle end related information to reflect the vehicle end related information and prompt social vehicles and pedestrians to take avoidance measures, wherein the avoidance measures comprise but are not limited to in-situ waiting, yielding and/or detouring; preferably, the roadside end further controls an intelligent spike and/or a voice prompt module to reflect the vehicle end related information, and can prompt social vehicles and pedestrians to take avoidance measures, wherein the avoidance measures include but are not limited to waiting in place, yielding and/or detouring.

When the distance does not reach or is higher than the threshold value, the cloud server sends a requirement for continuously providing the geographic position information of the vehicle end in real time to the vehicle end; after receiving the requirement, the vehicle end continuously acquires the geographic position of the vehicle end in real time and sends the geographic position to the cloud server in real time; after receiving the geographic position information of the vehicle end, the cloud server also calculates the distance between the geographic position of the vehicle end and the geographic position of the termination point of the one-way road in real time, and the acquisition and calculation are stopped until the distance reaches or is lower than the threshold value; and when the distance reaches or is lower than the threshold value, the cloud server executes the operation when the distance reaches the threshold value, and respectively sends the corresponding information to the vehicle end and the road side end.

The threshold value can be specified or appointed by related departments in advance and is arranged in the vehicle end; the relevant departments include, but are not limited to, traffic management; as an example, the threshold may be 200 meters, 100 meters, 50 meters, or other distances.

After receiving the passing permission which does not allow reverse passing, the vehicle end can not pass in the reverse direction on the one-way road, and automatically selects other roads to bypass; and after the road side end receives the passing permission which does not allow reverse passing, ignoring the reverse passing requirement of the vehicle end.

Before installing a safe vehicle number plate at a vehicle end, submitting vehicle information of the vehicle end to a vehicle management department and registering; the vehicle information includes, but is not limited to, a vehicle identification code. The vehicle management department plans and designs the image style of the common vehicle license plate in advance; the vehicle user submits the vehicle information of the vehicle end to be branded to a vehicle management department, selects the specific number of the vehicle license plate and registers; the vehicle information of the vehicle end to be branded comprises a vehicle identification code; the vehicle management department is a designated authority management department, and a specific responsible department takes corresponding regulations as the standard.

The cloud server generates a common vehicle license plate image according to the information; and then, the cloud server carries out digital signature on the specific number information of the vehicle license plate to generate a vehicle license plate digital signature. Generating a vehicle license plate digital watermark by using the specific number information of the vehicle license plate and the vehicle license plate digital signature as parameters; and then embedding the vehicle license plate digital watermark into the common vehicle license plate image to generate the safe vehicle license plate image. The vehicle management department generates a safe vehicle number plate from the safe vehicle number plate image according to the printing and manufacturing specifications of the vehicle number plate; and then, the safe vehicle number plate is installed at the vehicle end.

Furthermore, when the vehicle end sends the geographic position information of the vehicle end to the cloud server, time information of the vehicle end when the geographic position information of the vehicle end is collected can be set and sent at the same time; when a plurality of vehicle ends are needed, when the plurality of vehicle ends need to preferentially pass through the one-way road in the reverse direction, the cloud server can queue the vehicle ends according to the distance between the geographic position of each vehicle end and the geographic position of the termination point of the one-way road and the time sequence relation of the time in the time information, and then the cloud server determines which vehicle end is firstly inquired about the passing authority of the one-way road according to the sequence of the queue; the queuing of the vehicle ends is to queue according to the distance between the geographical position of each vehicle end and the geographical position of the ending point of the one-way road, wherein the distance is arranged in front; if the distances are the same, queuing is carried out according to the time in the time information, and the time is arranged in front earlier.

In the embodiment of the scheme, further, the vehicle end sends the vehicle end related information to the cloud server, and simultaneously sends the digital signature information of the vehicle end related information by the private key of the vehicle end used by the vehicle end; after the cloud server receives the vehicle-end related information and the digital signature information of the vehicle-end related information, verifying and signing the digital signature information of the vehicle-end related information by using a public key in a public key certificate of a vehicle end; and if the verification fails, directly returning the passing authority which does not allow reverse passing to the vehicle end.

In the embodiment of the scheme, the roadside end sends the image of the vehicle number plate and the number of the roadside end to the cloud server, and simultaneously sends the digital signature information of the image of the vehicle number plate and the number of the roadside end by the roadside end private key; after the cloud server receives the image of the vehicle number plate, the road side end number, the image of the vehicle number plate and the digital signature information of the road side end number, the public key in the public key certificate of the road side end is used for verifying and signing the image of the vehicle number plate and the digital signature information of the road side end number; and if the verification fails, directly returning the passing authority which does not allow reverse passing to the roadside end and the vehicle end.

Further, before the cloud server returns the passage right to the vehicle end and/or the roadside end, the cloud server carries out digital signature on the passage right by using a private key of the cloud server to generate a passage right digital signature, and then the passage right and the passage right digital signature are returned to the vehicle end and/or the roadside end together. After the vehicle side and/or the road side end receive the passage authority and the digital signature of the passage authority, a public key in a public key certificate of the cloud server is used for checking and signing the digital signature of the passage authority; if the verification is unsuccessful, the vehicle end and/or the road side end sends a request for regenerating and sending the pass right and the pass right digital signature to the cloud server; if the signature is successfully verified, the vehicle end and/or the roadside end performs corresponding operation according to the passing authority of the vehicle end;

in the embodiment of the scheme, before the cloud server simultaneously sends the vehicle-end related information to the roadside end corresponding to the one-way road, further, the cloud server performs digital signature on the vehicle-end related information by using a private key of the cloud server to generate a vehicle-end related information digital signature, and then sends the vehicle-end related information and the vehicle-end related information digital signature to the roadside end together. After the road side end receives the vehicle side related information and the vehicle side related information digital signature, the public key in the public key certificate of the cloud server is used for verifying the vehicle side related information digital signature; if the signature verification is unsuccessful, the roadside end sends a request for regenerating and sending the vehicle-end related information and the vehicle-end related information digital signature to the cloud server; if the signature verification is successful, the roadside end performs corresponding operation according to the vehicle end related information,

preferably, when the vehicle end, the cloud server and the road side end send information to each other, a timestamp and a random number may be added, and corresponding verification is performed at a receiving party, so as to prevent the information from being attacked by replay.

Further, based on the foregoing method, an embodiment of the present invention further provides a priority passing system based on V2I, including:

the vehicle end is arranged on the vehicle, a vehicle owner registers and applies for a target vehicle number plate to an authoritative department, and the vehicle owner enjoys the priority passing authority on the corresponding one-way road sent by the cloud server according to the vehicle number plate;

By applying the V2I internet of vehicles and the network technology, social vehicles and pedestrians can know the current and/or coming-in vehicle end conditions and adjust the position, direction and/or avoidance of the social vehicles and the pedestrians in time while realizing the safe information transmission, so that target vehicles of the vehicle end executing special tasks can safely and smoothly realize the reverse preferential passage of a single-way road.

Further, the cloud server further comprises: a digital certificate module, a cloud security module, a cloud digital watermark module and a cloud storage module, wherein,

the cloud security module is used for providing password encryption and decryption and secure storage of information interaction data for the cloud server by utilizing the secure intelligent chip;

the cloud digital watermark module is used for carrying out digital signature on a specific number in the vehicle license plate image, and generating a digital watermark by using the specific number and the digital signature to be embedded into the vehicle license plate image;

Presetting and storing a vehicle number plate and/or a vehicle identification code of a vehicle end and the passing permission of a one-way road corresponding to the vehicle number plate and/or the vehicle identification code of the vehicle end by using a cloud storage module so as to be inquired and called by a cloud server; the one-way road is determined by the geographical position information, the number and/or the name of the one-way road; the cloud storage module is also used for storing the road side serial number; the cloud storage module can be further used for storing the geographical position information of the roadside end corresponding to the roadside end number and the geographical position information of the one-way road corresponding to the roadside end; the geographical position information of the one-way road comprises but is not limited to geographical position information of a starting point and/or an end point of the one-way road; the geographic location information includes, but is not limited to, geographic coordinates; the cloud server is preset and maintained with the corresponding relation between the geographical position information of the starting point and/or the ending point of the one-way road and the geographical position information of the roadside end and the roadside end number, so that the information of one party can be found out through the geographical position information and/or the number of the other party.

Generating a digital watermark by using a cloud digital watermark module and embedding the digital watermark into a common vehicle license plate image to form a safe vehicle license plate image; and the digital watermark embedded in the image of the number plate of the vehicle can be identified and/or extracted through the digital watermark.

The passing authority of the vehicle end is stored and/or verified through a cloud server; the passing authority refers to the authority that the vehicle end does not have the reverse running on the one-way road, wherein when the vehicle end specifically refers to a special vehicle needing to reverse run on the one-way road due to task execution, the corresponding passing authority is to allow reverse passing; when the vehicle end is not a special vehicle which needs to run in the wrong direction on a one-way road due to task execution, the corresponding passing authority is that reverse passing is not allowed; and calculating the distance between the geographic position of the vehicle end and the geographic position of the end point of the one-way road by using a cloud server, and identifying and extracting the vehicle number plate information from the image by identifying the vehicle number plate.

Further, the roadside end further includes: a road side end safety module, a road side end camera module, a traffic signal machine, a priority information display board and a marking line projection module, wherein,

The road side end uniquely identifies the road side end by setting a road side end number; the road side end number can be stored in a safety storage area of a road side end safety module of the road side end; the roadside end can also store the geographical position information of the roadside end and the geographical position information of the one-way road where the roadside end is located. Changing the sequence of road traffic signals by using a traffic signal controller, adjusting timing and controlling the operation of road traffic signal lamps; the traffic signal controller is a core component of the traffic signal control system, is an execution unit positioned on a road site in the traffic signal control system, and has the core functions of realizing road traffic signal control, and having the functions of traffic information acquisition, communication, intersection monitoring and the like; the traffic signal controller controls traffic signal lamps; the traffic signal lamps are arranged at the exit and/or entrance of the one-way road, more traffic signal lamps can be arranged on the whole section of the one-way road according to actual needs, for example, the traffic signal lamps can be arranged at the positions of pedestrian crossings in the middle of the section; the traffic lights include, but are not limited to, traffic lights for indicating social vehicles and pedestrians and traffic lights for indicating reverse priority traffic; the social vehicles refer to vehicles other than the vehicle end that needs to go backwards through a one-way road.

The method comprises the steps that the priority information display board is used for displaying vehicle end related information of a vehicle end, so that social vehicles and pedestrians can know the current and/or upcoming vehicle end situation and adjust the position, direction and/or avoidance of the social vehicles and pedestrians in time, and specific information can comprise the driving direction and speed of the vehicle end, the distance from the priority information display board and the like; the priority information display board is arranged at the exit and/or entrance of the one-way road, more priority information display boards can be arranged on the whole road section of the one-way road according to actual needs, and for example, the priority information display board can be arranged at the position of a pedestrian crossing in the middle of the road section.

The marking projection module is utilized to project reverse traffic information to the road surface area of the one-way road needing reverse priority traffic at the vehicle end; the reverse traffic information comprises but is not limited to a reverse direction indication marking line which is opposite to the traffic direction of the original one-way road and vehicle end related information of the vehicle end; the reverse direction indicating marked line is used for temporarily covering or replacing the indicating marked line of the original one-way road passing direction on the original one-way road surface; the related information of the vehicle end is projected beside the reverse direction indicating marked line, so that social vehicles and pedestrians can timely know the related information of the vehicle end which is passing and/or is going to pass reversely through the reverse passing information and timely adjust the position, direction and/or avoidance of the social vehicles and the pedestrians; the reticle projection module can be arranged at an exit and/or an entrance of the one-way road, more reticle projection modules can be arranged on the whole section of the one-way road according to actual needs, for example, the reticle projection module can be arranged near the position of the pedestrian crossing in the middle of the section; the reticle 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 for projecting the reverse traffic information to the road surface under the natural condition of weak light at night or in the daytime; the reverse direction indicating marking line is projected by the projection lamp with proper brightness and color, the brightness and the size of the reverse direction indicating marking line are enough to cover or replace the original single-lane traffic direction indicating marking line, so that the lane and the reverse direction which the vehicle end needs to reversely and preferentially pass through the single-lane can be indicated, meanwhile, the reverse direction indicating marking line can play a role in prompting other social vehicles and pedestrians that the vehicle end needs to reversely run on the lane and the direction indicated by the reverse direction indicating marking line, and the social vehicles and the pedestrians can conveniently adjust the position and the direction of the social vehicles and the pedestrians in real time and avoid the vehicles and the pedestrians in time.

And the road side end controls a traffic signal controller, a priority information display board and a marking line projection module according to the vehicle-end related information sent by the cloud server so as to reflect the vehicle-end related information and prompt social vehicles and pedestrians to take avoidance measures, wherein the avoidance measures comprise but are not limited to in-situ waiting, yielding and/or detouring.

Further, the vehicle end also comprises a vehicle end safety module and a vehicle end positioning module, wherein,

the vehicle-end security module is used for providing password encryption and decryption and safe storage of information interaction data for the vehicle end by using the security intelligent chip;

The vehicle number plate, commonly called license plate and license plate, is a plate material respectively hung in front of and behind the vehicle, and the commonly used material is aluminum, iron sheet, plastic or paper, on which the registration number, registration area or other relevant information of the vehicle is engraved; the vehicle number plate is divided into a common vehicle number plate and a safe vehicle number plate; the common vehicle number plate comprises one or more of a large-scale vehicle number plate, a small-scale vehicle number plate, an embassy vehicle number plate, a guinance vehicle number plate, a hong Kong-Macao vehicle number plate, a coach vehicle number plate, a police vehicle number plate and a temporary driving number plate; the safe vehicle license plate is a vehicle license plate generated after the digital watermark is embedded in a common vehicle license plate. The vehicle identification code of the vehicle end is arranged in a safe storage area of a vehicle end safety module of the vehicle end before the vehicle leaves a factory by a vehicle production party, the vehicle identification code only provides a read-only function after being arranged in the safe storage area of the vehicle end safety module, and a vehicle user cannot change the vehicle identification code arranged in the safe storage area of the vehicle end safety module; the Vehicle Identification Number (or called frame Number, abbreviated as VIN) is a group consisting of a plurality of letters and/or numbers, is used for a group of unique numbers on the automobile, and can identify the manufacturer, the engine, the chassis serial Number, other performance data and the like of the automobile. The vehicle-end related information may include information such as a vehicle number plate, a vehicle identification code, a passing direction of the vehicle end and/or geographical location information of the vehicle end, and may further include information such as a vehicle body color, a vehicle type, a vehicle speed, and the like of the vehicle end.

The vehicle end sends vehicle end related information to the cloud server immediately after being in wireless communication connection with the cloud server; then, the vehicle end sends the geographic position information of the vehicle end to the cloud server in real time and continuously; the cloud server can master the driving track of the vehicle end according to the geographical position information of the vehicle end. If the vehicle end receives the information which is sent by the cloud server and allows reverse traffic, the vehicle end passes through the one-way road in a reverse traffic way under the condition of ensuring safety; if the vehicle end receives the information which is sent by the cloud server and does not allow reverse traffic, the vehicle end cannot pass through the one-way road in the reverse direction, and other roads can be automatically selected to pass by.

The cloud side safety module, the roadside side safety module and the vehicle side safety module are respectively used for providing a password service function and a safe storage function for the cloud side server, the roadside side and the vehicle side. The cloud side safety module, the road side end safety module and the vehicle side safety module can be respectively provided with a safety storage area; storing a digital certificate, a private key and other important information and data by using a secure storage area; the other important information and data includes but is not limited to vehicle identification code and/or roadside end number; the cryptographic service functions include, but are not limited to, generating random numbers, digital signature operations, digital signature verification operations, encryption and decryption operations, generating session keys, generating digital digests, digital certificate verification, and digital certificate revocation list querying; digital certificates are also known as public key certificates.

Generating and storing public key certificates for the cloud server, the road side end and the vehicle end by using a digital certificate module; the digital certificate module can write the public key certificate of the road side end and the root certificate of the cloud server into a road side end safety module of the road side end in an off-line or on-line mode; the public key certificate of the vehicle end and the root certificate of the cloud server can also be written into a vehicle end safety module of the vehicle end in an off-line or on-line mode; public key certificates of the road side end and the vehicle side can be issued by a root certificate of the cloud server.

The cloud server, the road side end and the vehicle end respectively store private keys corresponding to public keys in corresponding public key certificates; the private key of the cloud server is stored in the digital certificate module or the secure storage area of the cloud security module; the private key of the roadside end is stored in the safe storage area of the roadside end safety module; and the private key of the vehicle end is stored in the safe storage area of the vehicle end safety module.

The cloud server can retrieve and obtain the public key certificate of the road side end through the road side end number by presetting the corresponding relation between the road side end number and the public key certificate of the road side end. The corresponding relation between the vehicle identification code and the vehicle number plate is preset, so that the vehicle number plate information of the vehicle end can be retrieved and obtained through the vehicle identification code, and the vehicle identification code information of the vehicle end can also be retrieved and obtained through the vehicle number plate; the public key certificate of the vehicle end can be retrieved and obtained through the vehicle identification code and/or the vehicle number plate by presetting the corresponding relation between the vehicle identification code and/or the vehicle number plate and the public key certificate of the vehicle end.

Preferably, the cloud security module, the roadside side security module and the vehicle side security module are all security intelligent chips, and commercial cryptographic algorithms supported by the security intelligent chips include but are not limited to one or more of SM1, SM2, SM3, SM4 and SM9, and international common cryptographic algorithms supported by the security intelligent chips include but are not limited to one or more of 3DES, AES, RSA, SHA-1 and SHA-256; the secure intelligent chip supports storing a digital certificate; the safety intelligent chip provides a safety storage area and supports the safety storage of important information; the safety intelligent chip supports generation of random numbers; the digital certificate module also maintains a certificate revocation list and provides a certificate revocation list query function.

The vehicle management department can be an authority management department, and a specific responsible department takes corresponding regulations as the standard; and the vehicle management department stores the vehicle number plate and the vehicle identification code corresponding to the vehicle number plate when the vehicle number plate is registered in the vehicle management department in the cloud server for later use.

Preferably, the roadside end camera module can collect the vehicle number plate image and the related data by arranging a first camera, a second camera, a third camera, a vehicle number plate identification module, a vehicle number plate synthesis module, a light induction module and a light supplement module; the first camera can be used for acquiring real-time video information of the vehicle end, and the first camera has an infrared camera shooting function; the second camera can be a long-focus camera and can photograph the vehicle number plate at the vehicle end; the third camera can be a wide-angle camera and can photograph the vehicle number plate at the vehicle end; the vehicle license plate recognition module can recognize the video information collected by the first camera in real time, and if the image information of the vehicle license plate is recognized in the video information, the second camera and the third camera can be called to photograph the safe vehicle license plate; the second camera and the third camera can dynamically change shooting angles under the dispatching of the vehicle license plate identification module to aim at the vehicle end, and then can automatically adjust focal lengths to provide better shooting quality; the vehicle license plate synthesizing module can be used for calculating and synthesizing the vehicle license plate images shot by the second camera and the third camera respectively so as to obtain clear and high-quality vehicle license plate images; the light sensing module can be used for sensing whether the intensity of light is proper or not when the second camera and the third camera take a picture, and calling the light supplementing module to supplement light according to the requirement; the light supplement module can be used for supplementing light when the second camera and the third camera take photos.

Preferably, the first camera can adopt an ultra-high-definition camera or a full-high-definition camera, has a resolution of 1080P (1920 x 1080) or above, is mainly used for shooting videos in a driving process and is provided for the vehicle license plate recognition module to recognize the vehicle license plate; the first camera can also adopt a binocular camera; the second camera and the third camera can adopt ultrahigh resolution lenses (such as 4500 ten thousand pixels and more) and are used for shooting pictures of the vehicle number plate and generating image information of the vehicle number plate.

Further, an intelligent spike may be disposed at the roadside end, and the intelligent spike is utilized to indicate the reverse preferential passage direction of the vehicle end in the road surface and/or roadside area of the one-way road where the vehicle end needs to pass in reverse preferential passage according to the vehicle end related information of the vehicle end, for example, the reverse preferential passage direction of the vehicle end may be indicated by a luminous color or a luminous arrow with a color, and the color may be red, green or other colors; the smart spike may include a light emitting part; the light emitting components may be colored LED light emitting materials.

The road side end can be further provided with a voice prompt module which is used for broadcasting the vehicle end related information of the vehicle end so as to facilitate social vehicles and pedestrians to know the current and upcoming conditions of the vehicle end; the voice prompt module can be arranged at the exit and/or entrance of the one-way road, more voice prompt modules can be arranged on the whole section of the one-way road according to actual needs, for example, the voice prompt module can be arranged at the position of a pedestrian crossing in the middle of the section of the road;

in the embodiment of the scheme, the one-way road at least comprises two lanes, and the left-most lane of the original passing direction of the one-way road is set as a lane with a variable passing direction; when no vehicle end needing reverse priority passing needs reverse passing, the leftmost lane and other lanes keep the same passing direction; when a vehicle end needing reverse priority passing needs to pass in the reverse direction, the leftmost lane is changed into a lane opposite to the original passing direction, the leftmost lane is changed into a special reverse lane of the vehicle end needing reverse priority passing, and social vehicles pass through other lanes continuously and pass in the original direction.

The leftmost lane corresponds to a traffic light for indicating reverse priority passing, the other lanes correspond to traffic lights for indicating social vehicles and pedestrians, and when no vehicle end needing reverse priority passing needs to pass in a reverse direction, the traffic signal sequence and the adjusting timing of the traffic lights are consistent with those of the traffic lights for indicating the social vehicles and the pedestrians; when a vehicle end needing reverse preferential passage needs to pass in a reverse direction, the traffic signal sequence of the traffic light is adjusted to match the vehicle end needing reverse preferential passage to pass in the reverse direction when the traffic light for indicating reverse preferential passage needs to pass in the reverse direction, specifically, the green light is displayed for the vehicle end needing reverse preferential passage, and the red light is displayed for social vehicles and pedestrians in the original passing direction. When a vehicle end needing reverse preferential passage needs to pass in a reverse direction, the marking line projection module projects reverse passage information to the leftmost lane.

The indication marking line for representing the passing direction of the one-way road can not be preset on the leftmost lane; the preset indication marked line representing the passing direction of the one-way road refers to a road marked line formed by directly spraying on the pavement of the one-way road in a hot melting mode; when no vehicle end needing reverse preferential passage needs to pass through in a reverse direction, the marking projection module projects an indication marking in the original one-way passage direction to the leftmost lane in a light and shadow mode, and at the moment, the direction indicated by the indication marking in the one-way passage direction is consistent with the direction indicated by the indication marking which is preset in advance and represents the one-way passage direction on the other lane; when a vehicle end needing reverse preferential passage needs to pass in a reverse direction, the marking line projection module projects reverse passage information to the leftmost lane, and at the moment, the direction indicated by the indication marking line of the passage direction projected by the marking line projection module on the one-way lane is opposite to the direction indicated by the indication marking line which is preset in advance and represents the passage direction of the one-way lane on the other lane.

Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.

The elements of the various examples and method steps described in connection with the embodiments disclosed herein may be embodied in electronic hardware, computer software, or combinations of both, and the components and steps of the examples have been described in a functional generic sense in the foregoing description for clarity of hardware and software interchangeability. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

Those skilled in the art will appreciate that all or part of the steps of the above methods can be implemented by a program instructing relevant hardware, and the program can be stored in a computer readable storage medium, such as: a read-only memory, a magnetic or optical disk, or the like. Alternatively, all or part of the steps of the foregoing embodiments may also be implemented by using one or more integrated circuits, and accordingly, each module/unit in the foregoing embodiments may be implemented in the form of hardware, and may also be implemented in the form of a software functional module. The present invention is not limited to any specific form of combination of hardware and software.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A priority passing method based on V2I is characterized in that reverse priority passing of a one-way road of a vehicle with a specific task is achieved based on information interaction among a V2I cloud server, a vehicle end and a road side end, and the achieving process comprises the following contents:

the cloud server identifies and extracts a target vehicle number plate in the vehicle number plate image, and matches the extracted target vehicle number plate and road side data in pre-stored data to verify whether the target vehicle has the right of passage on the corresponding one-way road; and are

Feeding back the verification result to the target vehicle and the roadside end; and generating priority traffic indication information by the road side end to enable the target vehicle to have priority in the reverse direction on the one-way road.

2. The V2I-based priority passing method according to claim 1, wherein the cloud server identifies and extracts the target vehicle number plate in the vehicle number plate image, matches the extracted target vehicle number plate and road side data in pre-stored data to verify whether the target vehicle enjoys the passing right on the corresponding one-way road, comprising: firstly, extracting vehicle number plate information by identifying a vehicle number plate image, and searching a one-way road position corresponding to a roadside end according to roadside end data; then, the extracted vehicle number plate information is compared with the pre-stored vehicle number plates, if the relevant vehicle number plates are compared, whether the target vehicle has the priority passing authority on the corresponding one-way road at the roadside end is searched, if the target vehicle has the priority passing authority, the digital watermark in the vehicle number plate image is continuously identified, the information in the digital watermark is extracted, the digital signature is checked, if the check is successful, the target vehicle is judged to have the priority passing authority on the corresponding one-way road, and if not, the target vehicle does not have the priority passing authority on the corresponding one-way road.

3. The V2I-based priority passing method according to claim 1 or 2, characterized in that for a target vehicle enjoying priority passing authority, the cloud server acquires the geographic position of the target vehicle in real time, compares the distance between the geographic position of the target vehicle and the end position of the corresponding one-way road with a preset threshold, allows the target vehicle to pass in reverse priority on the corresponding one-way road if the distance reaches or is smaller than the preset threshold, and feeds back a passing authority verification result to the target vehicle and the roadside end; if the distance is higher than the threshold value, continuously collecting the geographic position of the target vehicle, updating and judging the distance between the geographic position of the target vehicle and the geographic position of the end point of the one-way road to be traveled, continuously judging the distance and the preset threshold value until the distance reaches or is smaller than the preset threshold value, allowing the target vehicle to reversely and preferentially pass on the corresponding one-way road, and feeding back the pass permission verification result to the target vehicle and the road side end.

4. The V2I-based priority passing method according to claim 1 or 2, characterized in that information security interaction is performed between the roadside end, the vehicle end and the cloud server of the Internet of vehicles by using a security intelligent chip, wherein the security intelligent chip performs data encryption processing by using a cryptographic algorithm.

5. The V2I-based priority pass method of claim 4 wherein the cryptographic algorithm includes but is not limited to: one or more combinations of SM1, SM2, SM3, SM4, SM9, 3DES, AES, RSA, SHA-1, and SHA-256.

6. The V2I-based priority passing method according to claim 1, wherein when the vehicle end comprises a plurality of target vehicles, the plurality of target vehicles are queued according to the distance between the geographic position of each target vehicle and the end point of the one-way road and the time precedence relationship of the target vehicle at the current geographic position, and the cloud server verifies the passing authority of the target vehicles according to the queuing precedence order, wherein in the queuing processing, the front position of the queue of the target vehicle with a closer distance is set according to the distance between the geographic position of the target vehicle and the end point of the one-way road, and if the distances are the same, the front position of the queue of the target vehicle with a previous request time is queued according to the time precedence of the current geographic position.

7. A priority traffic system based on V2I, characterized in that, realized based on the method of claim 1, it comprises:

8. The V2I-based priority traffic system of claim 7, wherein the cloud server further comprises: a digital certificate module, a cloud security module, a cloud digital watermark module and a cloud storage module, wherein,

9. The V2I-based priority traffic system of claim 7, wherein the roadside end further comprises: a road side end safety module, a road side end camera module, a traffic signal machine, a priority information display board and a marking line projection module, wherein,

the traffic signal control machine is used for controlling the traffic signal lamps by changing the sequence of the road traffic signals and adjusting the timing;

10. The V2I-based priority traffic system of claim 7 wherein the terminal further includes a terminal security module and a terminal location module, wherein,