A special vehicle passing task distribution method and system based on V2X

Abstract

The application provides a special vehicle passing task distribution method and system based on V2X, and the method comprises the following steps: a special vehicle belonging organization sends special task information of a special vehicle to a special vehicle management system; the special vehicle management system determines a time-space release range of the special task according to the special task information, wherein the time-space release range comprises a time release range and a space release range; the special vehicle management system acquires V2X road equipment information in the space release range; and the special vehicle management system broadcasts priority passing information to the V2X road equipment in the space release range based on the time release range. The time-space release range of the priority passing information is calculated through the special task information, so that the V2X road equipment in the time-space release range can supervise and coordinate the priority passing right of the special vehicle based on the priority passing information.

Description

Technical Field

[0001] This invention relates to the field of V2X technology, and in particular to a method and system for distributing special vehicle passage tasks based on V2X. Background Technology

[0002] V2X (Vehicle to Everything) technology uses information interaction to perceive the overall environment, enabling intelligent connected vehicles to interact and coordinate control with external facilities, thereby improving driving safety, reducing congestion, and improving traffic efficiency.

[0003] Special vehicles typically refer to vehicles with special markings or special vehicle models that perform special duties and are equipped with special vehicle license plates, sirens, and warning lights, such as ambulances, fire trucks, police cars, engineering rescue vehicles, and military supervision vehicles. Special vehicles have priority in passing when performing special tasks, so road operators will grant them priority passage rights.

[0004] In traditional special vehicle management, special vehicles are often identified by their license plates, colors, and distinctive markings. This can easily lead to counterfeit special vehicles gaining road priority. Furthermore, road operators typically grant priority to special vehicles on a "first-come, first-served" basis, a coarse-grained approach to identification and supervision. With the increasing number of special vehicles in operation, it's easy for some vehicles not performing special tasks to acquire road priority, thus preventing vehicles with specific mission requirements from obtaining priority. This results in special vehicles not performing special tasks abusing their priority rights and occupying road resources.

[0005] Therefore, it is necessary to propose a safe and legal task distribution mechanism to supervise and coordinate the priority passage of special vehicles. Summary of the Invention

[0006] The present invention aims to at least partially solve one of the technical problems in the related art.

[0007] Therefore, the first objective of this invention is to propose a V2X-based method for distributing special vehicle passage tasks. This method calculates the spatiotemporal range for distributing priority passage information based on special task information, and proactively distributes priority passage information to V2X road equipment based on the spatiotemporal range. This enables V2X road equipment to monitor and coordinate the priority passage of special vehicles based on the priority passage information.

[0008] The second objective of this invention is to propose a special vehicle passage task distribution system based on V2X.

[0009] To achieve the above objectives, a first aspect of the present invention proposes a V2X-based method for distributing special vehicle passage tasks, comprising the following steps: The special vehicle's ownership agency sends special task information of the special vehicle to a special vehicle management system. The special task information includes a unique identifier for the special vehicle and special vehicle passage information, wherein the special vehicle passage information includes the passage time and spatial information of the special task; the special vehicle management system determines the spatiotemporal dissemination range of the special task based on the special task information, wherein the spatiotemporal dissemination range includes a time dissemination range and a spatial dissemination range; the special vehicle management system acquires V2X road equipment information within the spatial dissemination range; the special vehicle management system broadcasts priority passage information to the V2X road equipment within the spatial dissemination range based on the time dissemination range, wherein the priority passage information includes the unique identifier of the special vehicle.

[0010] In a specific embodiment of the first aspect, before the special vehicle ownership agency sends the special task information of the special vehicle to the special vehicle management system, the following steps are performed: the special vehicle management system obtains special vehicle registration information in advance through the special vehicle registration agency, the special vehicle registration information including the special vehicle ownership agency, the special vehicle type and the special vehicle unique identifier; the special vehicle management system sets a first time threshold T1 in advance according to the special vehicle ownership agency and / or the special vehicle type, and associates the first time threshold T1 with the special vehicle ownership agency and / or the special vehicle type, the first time threshold T1 being a fixed duration.

[0011] In a specific embodiment of the first aspect, when the special vehicle management system determines the time release range of a special task based on the special task information, it performs the following: the special vehicle management system extracts the passage time of the special task from the received special task information, the passage time of the special task including the passage start time T, the passage start time T being a time point; the special vehicle management system extracts the unique identifier of the special vehicle from the received special task information, and queries the special vehicle's affiliated organization and / or the first time threshold T1 associated with the special vehicle type through the unique identifier of the special vehicle; based on the passage start time T of the special task and the first time threshold T1, it calculates the release start time T of the special task. q T q =T-T1; The special vehicle management system extracts the access space information of the special task from the received special task information, and calculates the release and termination time T of the special task based on the access space information. Z Based on the launch start time T of the special mission q The termination time T of the special mission ZThe time range for the release of the special mission is calculated.

[0012] In a specific embodiment of the first aspect, the access space information is the start and end position information of special vehicles when performing special tasks, and the start and end position information includes start position information and end position information; the release and termination time T of the special task is calculated based on the access space information. Z At that time, the following steps are executed: Based on the start and end location information, the maximum travel time T for the special mission is determined through public navigation. max The maximum passage time T max The maximum travel time among all paths retrieved by public navigation queries; based on the special task's travel start time T, the first time threshold T1, and the special task's maximum travel time T. max The termination time T of the special mission was calculated. Z T Z = T+T max +T1.

[0013] In one specific embodiment of the first aspect, the access space information is the area range information for special vehicles to travel in when performing special tasks, and the release and termination time T of the special task is calculated based on the access space information. Z At that time, the following steps are performed: Based on the start time T of the special task, the first time threshold T1, and the second time threshold T2, the release and termination time T of the special task is calculated. Z T Z = T+T2+T1; the second time threshold T2 is a preset duration configured by the special vehicle management system.

[0014] In a specific embodiment of the first aspect, when the special vehicle management system determines the spatial distribution range of the special task based on the special task information, it performs the following: based on the access space information, it queries all feasible paths for the special vehicle to perform the special task through public navigation to obtain a feasible path group; and determines the spatial distribution range of the special task through the feasible path group.

[0015] In one specific embodiment of the first aspect, the special vehicle registration information further includes special vehicle external feature information and special vehicle license plate, wherein the special vehicle external feature information includes the appearance of the special vehicle and the color of the special vehicle;

[0016] The special mission information also includes a unique identifier for the special mission;

[0017] The V2X road equipment information includes the V2X road equipment's number and location information, and the V2X road equipment's location information includes latitude, longitude, and altitude.

[0018] The priority passage information also includes external characteristics of special vehicles and their license plates.

[0019] To achieve the above objectives, a second aspect of the present invention provides a special vehicle management system, including a time calculation module, a space acquisition module, and a communication module;

[0020] The time calculation module is used to determine the time release range of the special task based on the special task information;

[0021] The spatial acquisition module is used to determine the spatial distribution range of the special mission based on the special mission information; it is also used to acquire V2X road equipment information within the spatial distribution range.

[0022] The communication module is used to receive special mission information of special vehicles, the special mission information including a unique identifier of the special vehicle and special vehicle passage information, the special vehicle passage information including the passage time and passage space information of the special mission; it is also used to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, the priority passage information including the unique identifier of the special vehicle.

[0023] To achieve the above objectives, a third aspect of the present invention provides a V2X-based special vehicle passage task distribution system, including a special vehicle attribution agency, a special vehicle management system, and V2X road equipment. The special vehicle attribution agency is connected to the special vehicle management system, and the special vehicle management system and the V2X road equipment are connected through a V2X communication network.

[0024] The special vehicle ownership agency is used to send special task information of special vehicles to the special vehicle management system. The special task information includes a unique identifier of the special vehicle and special vehicle passage information. The special vehicle passage information includes the passage time and passage space information of the special task.

[0025] The special vehicle management system is used to determine the spatiotemporal release range of the special task based on the special task information, wherein the spatiotemporal release range includes a time release range and a spatial release range; it is also used to obtain V2X road equipment information within the spatial release range; and it is also used to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, wherein the priority passage information includes a unique identifier for the special vehicle.

[0026] The V2X road equipment includes all V2X road equipment within the spatial distribution range, used for data interaction with the special vehicle management system; and also used for data interaction with special vehicles performing tasks.

[0027] In a specific embodiment of the third aspect, the V2X-based special vehicle passage task distribution system further includes a special vehicle registration agency connected to the special vehicle management system, which is used to: send special vehicle registration information to the special vehicle management system, the special vehicle registration information including the special vehicle's ownership agency, the special vehicle type, and the special vehicle's unique identifier.

[0028] The beneficial effects of this invention are:

[0029] This invention utilizes a special vehicle management system to determine the spatiotemporal scope of special tasks based on special task information transmitted from the vehicle's owner. Within this scope, priority passage information is proactively sent to V2X road equipment. This allows the V2X equipment to verify the special vehicle's identity and task execution status. By verifying the vehicle's identity and task execution status within the constraints of time and space, priority passage for special vehicles is monitored and coordinated. Priority passage is granted only after successful verification, ensuring that special vehicles can only exercise priority passage when performing special tasks. This significantly reduces the occurrence of vehicles using counterfeit license plates or abusing priority passage rights, thereby improving road resource utilization efficiency. Attached Figure Description

[0030] Figure 1 This is a timing diagram of a V2X-based special vehicle passage task distribution method according to an embodiment of the present invention;

[0031] Figure 2 This is a flowchart illustrating a V2X-based special vehicle passage task distribution method according to an embodiment of the present invention.

[0032] Figure 3 The following is a flowchart of a V2X-based special vehicle passage task distribution method according to an embodiment of the present invention. Figure 1 ;

[0033] Figure 4 A flowchart of a V2X-based special vehicle passage task distribution method according to an embodiment of the present invention Figure 2 ;

[0034] Figure 5 This is a block diagram of a special vehicle management system according to an embodiment of the present invention;

[0035] Figure 6This is a block diagram of a V2X-based special vehicle passage task distribution system according to an embodiment of the present invention. Figure 1 ;

[0036] Figure 7 This is a block diagram of a V2X-based special vehicle passage task distribution system according to an embodiment of the present invention. Figure 2 . Detailed Implementation

[0037] To better understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments of the present invention and the features thereof can be combined with each other.

[0038] Example 1

[0039] The following describes a V2X-based special vehicle passage task distribution method according to an embodiment of the present invention, with reference to the accompanying drawings.

[0040] like Figures 1 to 3 As shown in the figure, a special vehicle passage task distribution method based on V2X according to an embodiment of the present invention includes the following steps:

[0041] The special vehicle ownership agency sends special task information of the special vehicle to the special vehicle management system. The special task information includes the special vehicle's unique identifier and special vehicle passage information. The special vehicle passage information includes the passage time and passage space information of the special task.

[0042] The aforementioned special vehicle ownership agencies are those that own the special vehicles, such as hospitals, public security departments, and fire departments. More specifically, the special vehicle ownership agencies are the information platforms used by these agencies or departments for task assignment and special vehicle registration.

[0043] The aforementioned special vehicle management system is an information platform providing computing, networking, and storage functions. It is typically set up by local road management departments and can manage and optimize special vehicles and road resources; therefore, the special vehicle management system is legitimate and reliable. The special vehicle management system can be a component of a V2X (Vehicle to Everything) system, or it can be an independently developed information platform outside of a V2X system.

[0044] The above-mentioned special mission information refers to information related to special vehicles and special missions when special vehicles are performing special missions.

[0045] The unique identifier for a vehicle is a set of characters representing the vehicle's identity information, including information such as the vehicle's manufacturer, year, model, body style, and codes, such as the chassis number or vehicle identification number.

[0046] The aforementioned spatial information for special missions refers to the geographical units that the special vehicles will traverse when performing the mission, including the latitude, longitude, and altitude of the geographical units. For example, the starting and ending points of the special vehicle's journey; or, the area covered by the special vehicle.

[0047] The special vehicle management system determines the spatiotemporal release range of the special mission based on the special mission information, which includes the time release range and the spatial release range.

[0048] The aforementioned time release range refers to time-related information of the special vehicle management system broadcasting priority passage information, including the time point when the priority passage information is broadcast and the time point when the priority passage information is broadcast. However, this embodiment of the invention is not limited to this and also includes the broadcast cycle and the total broadcast duration.

[0049] The aforementioned spatial dissemination range refers to the spatial information related to the priority passage information broadcast by the special vehicle management system, including latitude and longitude, altitude, and may also include, but is not limited to, regional range and route.

[0050] The special vehicle management system obtains V2X road equipment information within the spatial release range in order to find all V2X road equipment within the spatial release range and proactively issues priority passage information to these V2X road equipment within the time release range;

[0051] The aforementioned V2X road equipment refers to devices installed on the roadside in a V2X system that have the ability to collect and / or network and / or compute and / or store data, and can assist and / or monitor traffic operations. These include RSU (Road Side Unit), cameras, millimeter-wave radar, and other equipment, and may also include, but are not limited to, MEC (Mobile Edge Computing) units, traffic lights, and electronic signs.

[0052] The above V2X road equipment information includes the V2X road equipment's serial number, geographical location, and logical connection location.

[0053] The special vehicle management system broadcasts priority passage information to V2X road equipment within the spatial range based on the time release range.

[0054] It should be noted that the special vehicle management system locates all V2X road devices within the spatial release range within the time release range, and sends priority passage information to all V2X road devices within the spatial release range through polling broadcast. The broadcast cycle of the polling broadcast method can be set by the user, such as broadcasting once every 5 minutes.

[0055] Within the spatial dissemination range, V2X road equipment verifies the identity of special vehicles and their special mission execution status based on priority passage information within the temporal dissemination range. More specifically, it identifies special vehicles through their unique identifiers and determines whether a special vehicle is performing a special mission by analyzing the broadcast time of the priority passage information and the vehicle's operating time. If the identity and mission execution status of a special vehicle are successfully verified, it is granted priority passage to assist in its passage and prevent vehicles with counterfeit license plates or those not performing special missions from abusing their priority passage rights and occupying road resources.

[0056] Since priority passage information only includes the unique identifier of special vehicles and does not involve vehicle passage information, V2X road equipment is unaware of specific task information, thus protecting the travel privacy of special vehicles and improving the security of special vehicle passage task distribution methods.

[0057] like Figure 1 and Figure 2 As shown, in some embodiments, before the special vehicle ownership agency sends the special task information of the special vehicle to the special vehicle management system, the following is performed:

[0058] The special vehicle management system obtains special vehicle registration information in advance through the special vehicle registration agency. The special vehicle registration information includes the special vehicle's ownership agency, the special vehicle type, and the special vehicle's unique identifier.

[0059] The aforementioned Application Registration Authority (ARA) provides platforms for services such as information entry and verification for special vehicles. In practical applications, the ARA can serve as an information platform for regulatory departments of special vehicles, such as the information platform of the Safety Supervision Bureau.

[0060] The aforementioned special vehicle types refer to a type of vehicle, distinguished by its common characteristics, intended use, and function. For example, sedans, trucks, buses, and motorcycles are all separate types.

[0061] The special vehicle management system pre-sets a first time threshold T1 based on the special vehicle's ownership agency and / or the special vehicle type, and associates the first time threshold T1 with the special vehicle's ownership agency and / or the special vehicle type; wherein, the first time threshold T1 is a fixed duration.

[0062] The aforementioned first time threshold T1 refers to the difference between the time when the special vehicle management system starts broadcasting priority passage information and the start time (point) of the special vehicle's special task. For example, if the first time threshold T1 is 30 minutes, then the time when the priority passage information is broadcast is 30 minutes earlier than the time when the special vehicle starts performing the special task.

[0063] It should be noted that, based on the special vehicle's ownership agency and / or special vehicle type, a fixed first time threshold T1 is pre-set in the special vehicle management system; special vehicles of the same type and ownership agency are set with the same first time threshold T1, and the corresponding special vehicle ownership agency and / or special vehicle type and first time threshold T1 are associated, so that the associated first time threshold T1 can be queried through the special vehicle ownership agency and / or special vehicle type.

[0064] The purpose of setting the first time threshold T1 is to send priority passage information to V2X road equipment before special vehicles begin to perform special tasks. This is to avoid delays caused by network problems preventing V2X road equipment from receiving the priority passage information, which would prevent special vehicles from having the priority passage rights granted by V2X road equipment when performing special tasks, thus delaying the execution of special tasks.

[0065] In some embodiments, when the special vehicle management system determines the time range for the release of a special task based on special task information, it performs the following:

[0066] The special vehicle management system extracts the passage time of the special task from the received special task information. The passage time of the special task includes the passage start time T of the special task, which is a time point.

[0067] The passage start time T for the aforementioned special mission is the time when the special vehicle begins to perform the special mission, and it is also the start time when the special vehicle will have priority passage.

[0068] The special vehicle management system extracts the unique identifier of the special vehicle from the received special task information, and uses the unique identifier of the special vehicle to query the first time threshold T1 associated with the special vehicle's ownership organization and / or special vehicle type;

[0069] It should be noted that when the special vehicle management system receives the special vehicle registration information from the special vehicle registration agency and sets the first time threshold T1, it pre-associates the first time threshold T1 with the special vehicle's ownership agency and / or special vehicle type. Therefore, after receiving special task information, the special vehicle management system can find the corresponding special vehicle's ownership agency and / or special vehicle type through the vehicle's unique identifier in the special task information, and thus query the first time threshold T1 associated with the special vehicle's ownership agency and / or special vehicle type.

[0070] The special vehicle management system calculates the release start time T of the special task based on the passage start time T of the special task and the first time threshold T1. q T q =T-T1; The start time T of the above special mission issuance q This refers to the point in time when the special vehicle management system begins broadcasting priority passage information to V2X road equipment;

[0071] The special vehicle management system extracts the access space information of the special task from the received special task information, and calculates the release and termination time T of the special task based on the access space information. Z The termination time of the aforementioned special mission is T. Z This refers to the point in time when the special vehicle management system ends broadcasting priority passage information;

[0072] Based on the launch start time T of the special mission q With the termination time T of the special mission Z The time range for the release of special missions is calculated.

[0073] It should be noted that the time frame for the dissemination of special tasks, that is, the period during which the special vehicle management system periodically polls and broadcasts priority passage information to V2X devices, is from the start time T of the special task dissemination. q The broadcast begins and ends at time T, the date the special mission is announced. Z End broadcast.

[0074] It is understandable that the first time threshold T1 is a fixed duration preset in the special vehicle management system, and the start time T of the special task is the time when the special vehicle begins to execute the special task. However, in order not to delay the execution of the special task, the time when the special vehicle management system publishes the special task (priority passage information) to the V2X device needs to be earlier than the time when the special vehicle begins to execute the special task (the start time T of the special task). Therefore, the start time T of the special task publication... q =T-T1, for example, set T1=30 minutes. If the start time T of the special mission is 8:00 AM Beijing time, then the start time T of the special mission is...q The time is 7:30 AM Beijing time, so that V2X road equipment can promptly identify the identity of special vehicles, grant them priority passage, and assist them in passing through to carry out their special tasks.

[0075] A time-based release range is set so that relevant V2X road equipment can only receive priority passage information within this range. This time parameter helps V2X road equipment verify the identity of special vehicles and the status of special missions, granting priority passage only to special vehicles performing special missions. This reduces the occurrence of counterfeit vehicles or special vehicles abusing priority passage rights and occupying road resources, thereby improving the efficiency of road resource utilization. Furthermore, it ensures that V2X equipment can only receive priority passage information for the current period to avoid the adverse effects of information leakage caused by premature release of priority passage information.

[0076] In some embodiments, when the special vehicle management system determines the spatial distribution range of a special task based on the special task information, it performs the following:

[0077] Based on the access space information, all feasible paths for special vehicles to perform the special tasks are obtained through public navigation queries, thus obtaining a group of feasible paths;

[0078] The spatial distribution range of special missions is determined by the group of feasible paths.

[0079] This invention discloses a V2X-based method for distributing special vehicle passage tasks. The special vehicle management system determines the spatiotemporal scope of special tasks based on task information from the vehicle's owner. Within this scope, it proactively sends priority passage information to V2X road equipment, allowing the equipment to verify the special vehicle's identity and task execution status. By verifying the vehicle's identity and task execution status within time and space constraints, priority passage is granted only after successful verification. This method monitors and coordinates priority passage, ensuring that special vehicles can only exercise priority passage when performing special tasks. This significantly reduces the occurrence of vehicles using counterfeit license plates or abusing priority passage rights, thereby improving road resource utilization efficiency.

[0080] Example 2

[0081] Based on Example 1, this example provides a specific implementation of a V2X-based special vehicle passage task distribution method.

[0082] In some embodiments, the special vehicle registration information further includes special vehicle external feature information and special vehicle license plate. The special vehicle external feature information includes the appearance of the special vehicle and the color of the special vehicle. The appearance of the special vehicle refers to all visible parts installed on the exterior of the vehicle, including the vehicle's lights and alarms. However, the embodiments of the present invention are not limited to this and may also include the vehicle body and body stripe stickers.

[0083] The special mission information also includes a unique identifier for the special mission; the unique identifier for the special mission is a number issued by the agency to which the special vehicle belongs, which marks the uniqueness of the mission, so as to distinguish the different missions and facilitate the subsequent tracing of special mission-related information.

[0084] The V2X road equipment information includes the V2X road equipment's number and location information. The location information of the V2X road equipment includes latitude, longitude, and altitude. The location information also includes the logical connection location information of the V2X road equipment. The purpose is to enable the special vehicle management system to smoothly send priority passage information to the V2X road equipment.

[0085] The priority passage information also includes external feature information of special vehicles and special vehicle license plates, so that V2X road equipment can quickly identify the identity of special vehicles performing special tasks.

[0086] It should be noted that when the special vehicle registration information also includes special vehicle external feature information and special vehicle license plate, the priority passage information includes the special vehicle's unique identifier, special vehicle external feature information, and special vehicle license plate.

[0087] Within the spatial dissemination range, V2X road equipment verifies the identity of special vehicles and their special mission execution status based on priority passage information within the temporal dissemination range. More specifically, it identifies special vehicles through external characteristic information, license plates, and unique identifiers, and determines whether a special vehicle is performing a special mission by analyzing the broadcast time of the priority passage information and the vehicle's operating time. If the identity and mission execution status of a special vehicle are successfully verified, it is granted priority passage to assist in its passage and prevent vehicles with counterfeit license plates or those not performing special missions from abusing their priority passage rights and occupying road resources.

[0088] Since priority passage information only includes the external characteristics of special vehicles, their license plates, and unique identifiers, and does not involve vehicle passage information, V2X road equipment is unaware of specific task information. This protects the travel privacy of special vehicles and improves the security of the special vehicle passage task distribution method.

[0089] Example 3

[0090] Based on the above embodiments, this embodiment provides a specific implementation method for a V2X-based special vehicle passage task distribution method.

[0091] like Figure 3 As shown, in some embodiments, the access space information is the start and end position information of special vehicles when performing special tasks. The start and end position information includes start position information and end position information, and the position information includes latitude, longitude and altitude.

[0092] Furthermore, the release and termination time T of the special mission is calculated based on the access space information. Z At that time, execute:

[0093] The special vehicle management system, based on start and end location information, queries public navigation to determine the maximum travel time T for special missions. max The maximum passage time T max The maximum travel time among all routes retrieved by public navigation;

[0094] The aforementioned public navigation refers to a map service platform that uses a geographic information system to store and transmit map data, and provides capabilities such as geographic location information release, route planning, and travel time prediction. It is usually a third-party map app, such as Baidu Maps, Gaode Maps, and Tencent Maps, or it can be an independently developed map service platform / map app.

[0095] It should be noted that public navigation can only plan one or more feasible paths from the starting and ending points and their corresponding predicted travel times when the special vehicle management system detects specific start and end point information, and when both start and end points are fixed and different. The longest predicted travel time will then be used as the maximum travel duration T. max For example, if the starting location is point A and the ending location is point B, and points A and B are both fixed and distinct locations, and point A is entered as the starting point and point B as the ending point in a public navigation system, the system will plan three different routes: a, b, and c. Path a has a predicted travel time of 1 hour, path b has a predicted travel time of 1 hour and 15 minutes, and path c has a predicted travel time of 1 hour and 30 minutes. Therefore, the predicted travel time of 1 hour and 30 minutes for path c will be taken as the maximum travel time T for this special mission. max .

[0096] It is understandable that the aforementioned maximum passage time T max This is an empirical value obtained from a map database, representing the maximum predicted travel time among all feasible paths planned by public navigation systems. The maximum travel time T... maxThe maximum travel time T is determined by public navigation based on the start and end location information from the special mission information. max It can vary depending on the specific mission and is not a fixed duration.

[0097] The special vehicle management system is based on the special mission's start time T, a first time threshold T1, and the special mission's maximum travel time T. max The termination time T of the special mission was calculated. Z T Z = T +T max +T1.

[0098] It should be noted that the start time T of the special mission is the time when the special vehicle begins to perform the special mission, and the maximum passage time T max The maximum travel time among all routes retrieved by public navigation is defined as the first time threshold T1, which is a pre-set value. Considering that special vehicles performing special missions may be delayed due to unforeseen circumstances such as poor road conditions, to ensure their priority passage during special missions is not affected, the termination time of a special mission must be later than both the mission's start time T and the maximum travel time T. max The sum (T+T) max Therefore, when the access space information is the start and end location information of special vehicles when performing special tasks, the issuance and termination time T of the special task is set. Z = T+T max +T1; For example, if T1 is set to 30 minutes, and the start time T for special missions is 8:00 AM Beijing time, and the maximum passage time T max =2 hours, then the termination time T of the special mission issuance Z The time is 10:30 AM Beijing time, so that V2X road equipment can identify the delayed special vehicles and assist them to pass with priority to perform special tasks.

[0099] like Figure 3 As shown, in some embodiments, when the special vehicle management system determines the spatial distribution range of a special task based on special task information, it executes the following:

[0100] Based on the aforementioned traffic space information, all feasible routes for special vehicles to perform special tasks are retrieved through public navigation queries, resulting in a feasible route group; the aforementioned feasible routes are those that special vehicles can pass through when performing special tasks and that have V2X road equipment on the roadside.

[0101] The spatial distribution range of the special mission is determined by using feasible path groups.

[0102] It should be noted that when the travel space information is the start and end location information, one or more feasible paths from the start location to the end location are planned through public navigation. All feasible paths are combined into a feasible path group. Then the spatial release range of the special mission is the V2X road equipment on the relevant roadside of the feasible path group.

[0103] By defining a spatial distribution range, only V2X road equipment within this range can receive priority passage information. Spatial parameters help V2X road equipment verify the identity of special vehicles and the status of their special missions, granting priority passage only to special vehicles performing special tasks. This reduces the occurrence of vehicles using counterfeit license plates or abusing their priority passage rights, thereby improving the efficiency of road resource utilization. Furthermore, limiting the spatial range from which priority passage information is received strengthens the privacy protection of special vehicles, thus enhancing the security of the special vehicle passage task distribution method.

[0104] Example 4

[0105] Based on the above embodiments, this embodiment presents another specific implementation of a V2X-based special vehicle passage task distribution method.

[0106] like Figure 4 As shown, in some embodiments, the access space information is the area range information for special vehicles to travel when performing special tasks;

[0107] It should be noted that the travel space information is regional range information, which usually refers to the geographical range of the special vehicle performing the special task, where the fixed starting and ending positions cannot be determined. For example, when a patrol car performs a patrol task, the starting point and ending point cannot be determined, and only the patrol range is used as the regional range (spatial range) for performing the special task.

[0108] Furthermore, the release and termination time T of the special mission is calculated based on the access space information. Z At that time, execute:

[0109] Based on the start time T of the special mission, the first time threshold T1, and the second time threshold T2, the release and termination time T of the special mission is calculated. Z T Z = T+T2+T1.

[0110] It should be noted that the second time threshold T2 is a pre-configured duration in the special vehicle management system. The second time threshold T2 will only be used as the predicted passage time for special vehicles performing special tasks when the special vehicle management system detects that the passage space information is a regional range information. Since special vehicles usually use half a working day as the mission time when performing special tasks, the second time threshold is usually set to the duration of half a working day, for example, the second time threshold T2 = 4 hours. If the special vehicle cannot complete the special task within the time range of the second time threshold T2, it can send a task request (special task information) to the special vehicle management system again through the special vehicle's ownership agency to obtain priority passage time again.

[0111] It can be understood that the start time T of a special task is the time when the special vehicle begins to perform the special task, the second time threshold T2 is a pre-set predicted travel time for the special vehicle when performing the special task, and the first time threshold T1 is a pre-set fixed duration. Considering that special vehicles may be delayed due to unforeseen circumstances such as poor road conditions when performing special tasks, in order not to affect the priority passage of special vehicles when performing special tasks, the release and termination time of the special task needs to be later than the sum of the start time T and the second time threshold T2 (T+T2). Therefore, when the passage space information is the area range information of the special vehicle when performing the special task, the release and termination time T of the special task is set. Z = T + T2 + T1; For example, if T1 = 30 minutes, and the start time T of the special mission is 8:00 AM Beijing time, and the second time threshold T2 = 4 hours, then the release and termination time T of the special mission is... Z The time is 12:30 PM Beijing time, so that V2X road equipment can identify the delayed special vehicles and assist them to pass with priority to perform special tasks.

[0112] like Figure 4 As shown, in some embodiments, when the special vehicle management system determines the spatial distribution range of a special task based on special task information, it executes the following:

[0113] Based on the access space information, all feasible routes for special vehicles to perform special tasks are retrieved through public navigation queries, resulting in a feasible route group; the aforementioned feasible routes are those that special vehicles can pass through when performing special tasks and that have V2X road equipment on the roadside.

[0114] The spatial deployment range of special missions is calculated using feasible path groups.

[0115] It should be noted that when the travel space information is regional information, all feasible paths within the regional area are retrieved through public navigation, and all feasible paths are grouped into feasible path groups. Then, the spatial release range of the special mission is the V2X road equipment on the roadside related to the feasible path group.

[0116] By defining a spatial distribution range, only V2X road equipment within this range can receive priority passage information. Spatial parameters help V2X road equipment verify the identity of special vehicles and the status of their special missions, granting priority passage only to special vehicles performing special tasks. This reduces the occurrence of vehicles using counterfeit license plates or abusing their priority passage rights, thereby improving the efficiency of road resource utilization. Furthermore, limiting the spatial range from which priority passage information is received strengthens the privacy protection of special vehicles, thus enhancing the security of the special vehicle passage task distribution method.

[0117] Example 5

[0118] Based on the above embodiments, this embodiment provides a specific implementation method for a special vehicle management system.

[0119] like Figure 5 As shown, a special vehicle management system according to an embodiment of the present invention includes a time calculation module, a space acquisition module, and a communication module;

[0120] The time calculation module is used by the special vehicle management system to determine the time release range of the special task based on the special task information.

[0121] The spatial acquisition module is used by the special vehicle management system to determine the spatial release range of the special task based on the special task information; it is also used to acquire V2X road equipment information within the spatial release range, wherein the V2X road equipment information includes the number and location information of the V2X road equipment, and the location information of the V2X road equipment includes latitude, longitude and altitude.

[0122] The communication module is used to receive special mission information of special vehicles, the special mission information including the special vehicle's unique identifier and special vehicle passage information, the special vehicle passage information including the passage time and passage space information of the special mission; it is also used by the special vehicle management system to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, the priority passage information including the special vehicle's external feature information, special vehicle license plate, and special vehicle's unique identifier.

[0123] An embodiment of the present invention provides a special vehicle management system that utilizes a communication module to receive special task information from the special vehicle's affiliated agency, a time calculation module to determine the time release range, and a spatial acquisition module to determine the spatial release range and V2X road equipment information within the spatial release range. Based on the spatiotemporal release range, priority passage information is then sent to the V2X road equipment via the communication module. This allows the V2X road equipment to verify the identity of the special vehicle and the special task execution status based on the priority passage information, thereby significantly reducing the occurrence of counterfeit vehicles or special vehicles abusing their priority passage rights and occupying road resources.

[0124] Example 6

[0125] The following describes a V2X-based special vehicle passage task distribution system according to an embodiment of the present invention, with reference to the accompanying drawings.

[0126] like Figure 6 As shown in the figure, an embodiment of the present invention provides a V2X-based special vehicle passage task distribution system, which includes a special vehicle attribution agency, a special vehicle management system, and V2X road equipment. The special vehicle attribution agency is connected to the special vehicle management system, and the special vehicle management system and the V2X road equipment are connected through a V2X communication network.

[0127] The aforementioned special vehicle ownership agencies are those that own the special vehicles, such as hospitals, public security departments, and fire departments. More specifically, the special vehicle ownership agencies are the information platforms used by these agencies or departments for task assignment and special vehicle registration.

[0128] The aforementioned special vehicle management system is an information platform providing computing, networking, and storage functions. It is typically set up by local road management departments and can manage and optimize special vehicles and road resources; therefore, the special vehicle management system is legitimate and reliable. The special vehicle management system can be a component of a V2X (Vehicle to Everything) system, or it can be an independently developed information platform outside of a V2X system.

[0129] The aforementioned V2X road equipment refers to a collection of V2X road equipment within the spatial deployment range. V2X road equipment refers to devices installed on the roadside within a V2X system, possessing capabilities such as data collection and / or networking and / or computing and / or storage, and capable of assisting and / or monitoring traffic operations. This includes devices such as RSUs (Road Side Units), cameras, and millimeter-wave radar, and may also include, but is not limited to, MECs (Mobile Electronic Control Units). Edge computing (mobile edge computing) units, traffic lights, and electronic signs.

[0130] The aforementioned V2X communication network is the network communication architecture of the V2X system. Since all V2X road equipment has been registered in the V2X communication network, the special vehicle management system and the V2X road equipment can interact with each other through the V2X communication network.

[0131] The special vehicle ownership agency is used to send special task information of special vehicles to the special vehicle management system. The special task information includes the special vehicle's unique identifier and special vehicle passage information. The special vehicle passage information includes the passage time and passage space information of the special task.

[0132] The special vehicle management system is used to determine the spatiotemporal release range of the special task based on the special task information, wherein the spatiotemporal release range includes a time release range and a spatial release range; it is also used to obtain V2X road equipment information within the spatial release range; and it is also used to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, wherein the priority passage information includes a unique identifier for the special vehicle.

[0133] The aforementioned time release range refers to the relevant time information of the special vehicle management system broadcasting priority passage information, including the time point when the priority passage information is broadcast and the time point when the priority passage information is broadcast. However, the embodiments of the present invention are not limited to this, and also include the broadcast cycle and the total broadcast duration.

[0134] The aforementioned spatial dissemination range refers to the spatial information related to the priority passage information broadcast by the special vehicle management system, including latitude and longitude, altitude, and may also include, but is not limited to, regional range and route.

[0135] The V2X road equipment includes all V2X road equipment within the spatial distribution range, used for data interaction with the special vehicle management system and with special vehicles performing tasks.

[0136] like Figure 7 As shown, an embodiment of the present invention provides a V2X-based special vehicle passage task distribution system, which further includes a special vehicle registration agency connected to the special vehicle management system, and is used for:

[0137] After successful registration and authentication of a special vehicle, the special vehicle registration information is sent to the special vehicle management system. The special vehicle registration information includes the special vehicle's ownership organization, the special vehicle type, and the special vehicle's unique identifier.

[0138] In a V2X-based special vehicle passage task distribution system according to an embodiment of the present invention, the special vehicle management system broadcasts priority passage information to V2X road equipment within the spatial range based on the time release range. This allows the V2X road equipment to verify the identity of the special vehicle and the special task execution status based on the priority passage information. Only after successful verification is the special vehicle granted priority passage right. This system monitors and coordinates the priority passage of special vehicles, which can significantly reduce the occurrence of counterfeit vehicles or special vehicles abusing their priority passage rights and occupying road resources, thereby improving the utilization efficiency of road resources.

Claims

1. A method for distributing special vehicle passage tasks based on V2X, characterized in that, Includes the following steps: The special vehicle ownership agency sends special task information of the special vehicle to the special vehicle management system. The special task information includes the special vehicle's unique identifier and special vehicle passage information. The special vehicle passage information includes the passage time and passage space information of the special task. Before the special vehicle ownership organization sends the special vehicle's special task information to the special vehicle management system, it performs the following: The special vehicle management system obtains special vehicle registration information in advance through the special vehicle registration agency. The special vehicle registration information includes the special vehicle's ownership agency, the special vehicle type, and the special vehicle's unique identifier. The special vehicle management system pre-sets a first time threshold T1 based on the special vehicle's ownership agency and / or the special vehicle type, and associates the first time threshold T1 with the special vehicle's ownership agency and / or the special vehicle type; wherein, the first time threshold T1 is a fixed duration; The special vehicle management system determines the spatiotemporal release range of the special task based on the special task information, and the spatiotemporal release range includes the time release range and the spatial release range. When the special vehicle management system determines the time range for the release of a special task based on the special task information, it executes the following: The special vehicle management system extracts the passage time of the special task from the received special task information. The passage time of the special task includes the passage start time T of the special task, which is a time point. The special vehicle management system extracts the unique identifier of the special vehicle from the received special task information, and uses the unique identifier of the special vehicle to query the first time threshold T1 associated with the special vehicle's ownership organization and / or the special vehicle type. Based on the access start time T of the special mission and the first time threshold T1, the release start time T of the special mission is calculated. q T q =T-T1; The special vehicle management system extracts the access space information of the special task from the received special task information, and calculates the release and termination time T of the special task based on the access space information. Z ; Based on the launch start time T of the special mission q The termination time T of the special mission Z The time range for the release of the special mission is calculated. When the access space information refers to the start and end position information for special vehicles traveling during special missions, the start and end position information includes starting position information and ending position information; the release and termination time T of the special mission is calculated based on the access space information. Z At that time, execute: Based on the start and end location information, the maximum travel time T for the special mission is determined by querying public navigation. max The maximum passage time T max The maximum travel time among all routes retrieved by public navigation; Based on the start time T of the special mission, the first time threshold T1, and the maximum travel time T of the special mission. max The termination time T of the special mission was calculated. Z T Z = T+T max +T1; When the access space information is the area range information for special vehicles to travel in when performing special tasks, the release and termination time T of the special task is calculated based on the access space information. Z At that time, execute: Based on the start time T of the special mission, the first time threshold T1, and the second time threshold T2, the release and termination time T of the special mission is calculated. Z T Z = T+T2+T1; the second time threshold T2 is a preset duration configured by the special vehicle management system; The special vehicle management system acquires V2X road equipment information within the spatial publishing range; The special vehicle management system broadcasts priority passage information to V2X road equipment within the spatial range based on the time release range, and the priority passage information includes the unique identifier of the special vehicle.

2. The V2X-based special vehicle passage task distribution method as described in claim 1, characterized in that, When the special vehicle management system determines the spatial distribution range of a special task based on the special task information, it executes the following: Based on the access space information, all feasible paths for special vehicles to perform the special tasks are obtained through public navigation queries, thus obtaining a group of feasible paths; The spatial distribution range of special missions is determined by the group of feasible paths.

3. The V2X-based special vehicle passage task distribution method as described in claim 1, characterized in that, The special vehicle registration information also includes the special vehicle's external characteristics information and the special vehicle's license plate. The special vehicle's external characteristics information includes the special vehicle's appearance and color. The special mission information also includes a unique identifier for the special mission; The V2X road equipment information includes the V2X road equipment's number and location information, and the V2X road equipment's location information includes latitude, longitude, and altitude. The priority passage information also includes external characteristics of special vehicles and their license plates.

4. A special vehicle management system, characterized in that, It includes a time calculation module, a space acquisition module, and a communication module; The time calculation module is used to determine the time release range of the special task based on the special task information; The spatial acquisition module is used to determine the spatial distribution range of the special mission based on the special mission information; it is also used to acquire V2X road equipment information within the spatial distribution range. The communication module is used to receive special mission information of special vehicles, the special mission information including a unique identifier of the special vehicle and special vehicle passage information, the special vehicle passage information including the passage time and passage space information of the special mission; it is also used to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, the priority passage information including the unique identifier of the special vehicle; The special vehicle management system obtains special vehicle registration information in advance through the special vehicle registration agency. The special vehicle registration information includes the special vehicle's ownership agency, the special vehicle type, and the special vehicle's unique identifier. The special vehicle management system pre-sets a first time threshold T1 based on the special vehicle's ownership agency and / or the special vehicle type, and associates the first time threshold T1 with the special vehicle's ownership agency and / or the special vehicle type; wherein, the first time threshold T1 is a fixed duration; The special vehicle management system extracts the passage time of the special task from the received special task information. The passage time of the special task includes the passage start time T of the special task, which is a time point. The special vehicle management system extracts the unique identifier of the special vehicle from the received special task information, and uses the unique identifier of the special vehicle to query the first time threshold T1 associated with the special vehicle's ownership organization and / or the special vehicle type. Based on the access start time T of the special mission and the first time threshold T1, the release start time T of the special mission is calculated. q T q =T-T1; The special vehicle management system extracts the access space information of the special task from the received special task information, and calculates the release and termination time T of the special task based on the access space information. Z ; Based on the launch start time T of the special mission q The termination time T of the special mission Z The time range for the release of the special mission is calculated. When the access space information refers to the start and end position information for special vehicles traveling during special missions, the start and end position information includes starting position information and ending position information; the release and termination time T of the special mission is calculated based on the access space information. Z At that time, execute: Based on the start and end location information, the maximum travel time T for the special mission is determined by querying public navigation. max The maximum passage time T max The maximum travel time among all routes retrieved by public navigation; Based on the start time T of the special mission, the first time threshold T1, and the maximum travel time T of the special mission. max The termination time T of the special mission was calculated. Z T Z = T+T max +T1; When the access space information is the area range information for special vehicles to travel in when performing special tasks, the release and termination time T of the special task is calculated based on the access space information. Z At that time, execute: Based on the start time T of the special mission, the first time threshold T1, and the second time threshold T2, the release and termination time T of the special mission is calculated. Z T Z = T+T2+T1; the second time threshold T2 is a preset duration configured by the special vehicle management system.

5. A V2X-based special vehicle passage task distribution system for implementing the V2X-based special vehicle passage task distribution method of claim 1, characterized in that, It includes a special vehicle ownership agency, a special vehicle management system, and V2X road equipment. The special vehicle ownership agency is connected to the special vehicle management system, and the special vehicle management system and the V2X road equipment are connected through a V2X communication network. The special vehicle ownership agency is used to send special task information of special vehicles to the special vehicle management system. The special task information includes a unique identifier of the special vehicle and special vehicle passage information. The special vehicle passage information includes the passage time and passage space information of the special task. The special vehicle management system is used to determine the spatiotemporal release range of the special task based on the special task information, wherein the spatiotemporal release range includes a time release range and a spatial release range; it is also used to obtain V2X road equipment information within the spatial release range; and it is also used to broadcast priority passage information to V2X road equipment within the spatial release range based on the time release range, wherein the priority passage information includes a unique identifier for the special vehicle. The V2X road equipment includes all V2X road equipment within the spatial distribution range, used for data interaction with the special vehicle management system and with special vehicles performing tasks.

6. The V2X-based special vehicle passage task distribution system as described in claim 5, characterized in that, It also includes a special vehicle registration agency connected to the special vehicle management system, which is used for: The system sends special vehicle registration information to the special vehicle management system. The special vehicle registration information includes the special vehicle's ownership organization, the special vehicle type, and the special vehicle's unique identifier.

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