CN111629357A - Novel V2X system - Google Patents
Novel V2X system Download PDFInfo
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- CN111629357A CN111629357A CN201911348681.XA CN201911348681A CN111629357A CN 111629357 A CN111629357 A CN 111629357A CN 201911348681 A CN201911348681 A CN 201911348681A CN 111629357 A CN111629357 A CN 111629357A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/44—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for communication between vehicles and infrastructures, e.g. vehicle-to-cloud [V2C] or vehicle-to-home [V2H]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/30—Services specially adapted for particular environments, situations or purposes
- H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
- H04W4/46—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P] for vehicle-to-vehicle communication [V2V]
Abstract
The embodiment of the invention discloses a novel V2X system, which comprises: the system comprises a vehicle-mounted central control unit of a main vehicle, a vehicle-mounted central control unit of a secondary vehicle in the same cluster with the main vehicle, a vehicle-mounted central control unit of a secondary vehicle in a cluster adjacent to the main vehicle, a low-level cluster server, a top-level cluster server and an adjacent low-level cluster server. The units and the servers realize information interaction between the master vehicle and the slave vehicles through broadcasting, receiving and forwarding the Internet of vehicles protocol message, reduce the additionally increased power consumption of braking, accelerating and the like of the vehicle, reduce the pollution emission of the vehicle, reduce traffic accidents and relieve traffic jam; the novel V2X system is deployed without depending on expensive OBU equipment and RSU equipment, and the cost and difficulty of system deployment are greatly reduced.
Description
Technical Field
The invention relates to the technical field of car networking, in particular to a novel V2X system.
Background
The V2X (Vehicle-to-Vehicle-connected Everything) system is used to enable information interaction between the Vehicle and all entities that may affect the Vehicle. V2X mainly includes V2V (Vehicle-to-Vehicle), V2I (Vehicle-to-Infrastructure), V2N (Vehicle-to-Network), and V2P (Vehicle-to-Pedestrian). The vehicle supporting the V2X greatly improves the safety of the road and reduces the probability of collision accidents.
However, the biggest problem that currently hinders the commercialization of V2X is the cost problem. To deploy the V2X system shown in fig. 1, an OBU (On Board Unit) needs to be installed On the vehicle, and a RSU (Road Side Unit) needs to be deployed On the Road Side to support D2D (Device to Device) communication. At present, OBU equipment and RSU equipment of various major manufacturers and scientific research institutions are in the initial stage of research and development and are expensive. The cost of each OBU device is 3-20 thousands, and the cost of each RSU device is 10-30 thousands. Even though the price has fallen to 1/10, which is the current cost by the time of the technical maturity, the cost of OBU devices and RSU devices remains the biggest problem for deploying V2X systems.
Disclosure of Invention
Due to the problems of the existing method, the embodiment of the invention provides a novel V2X system.
The embodiment of the invention provides a novel V2X system, which comprises:
the vehicle-mounted central control unit of the main vehicle is used for broadcasting the vehicle networking protocol message to the low-layer cluster server;
the vehicle-mounted central control unit of the slave vehicle in the same cluster as the master vehicle is used for receiving the vehicle networking protocol message sent by the low-layer cluster server;
the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster is used for receiving the vehicle networking protocol message sent by the adjacent low-layer cluster server;
the low-level cluster server is used for calculating the distance between the master vehicle and the cluster edge, receiving the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the master vehicle when the distance between the master vehicle and the cluster edge is greater than a preset distance, and sending the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle in the same cluster with the master vehicle; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the main vehicle, and forwarding the received vehicle networking protocol message to the top cluster server;
the top-layer cluster server is used for receiving the vehicle networking protocol message forwarded by the low-layer cluster server when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, determining a cluster adjacent to the cluster where the low-layer cluster server is located according to the vehicle networking protocol message, and sending the vehicle networking protocol message to the adjacent low-layer cluster server in the adjacent cluster;
and the adjacent low-layer cluster server is used for receiving the Internet of vehicles protocol message sent by the top-layer cluster server and sending the Internet of vehicles protocol message to the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster.
Optionally, the vehicle networking protocol message includes a vehicle driving position, a vehicle identification, a speed, and an acceleration.
Optionally, the onboard central control unit of the slave vehicle in the same cluster as the master vehicle is further configured to:
and judging whether the distance between the slave vehicles in the same cluster with the master vehicle and the master vehicle is within a first safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicles in the same cluster with the master vehicle and the master vehicle.
Optionally, the on-board central control unit of the slave vehicle in the cluster adjacent to the master vehicle is further configured to:
and judging whether the distance between the slave vehicle adjacent to the master vehicle cluster and the master vehicle is within a second safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicle adjacent to the master vehicle cluster and the master vehicle.
Optionally, the low-level cluster server is specifically configured to:
calculating the distance between the master vehicle and the cluster edge, and when the distance between the master vehicle and the cluster edge is greater than the preset distance, receiving the vehicle networking protocol message broadcasted by the vehicle-mounted central control unit of the master vehicle through 4G or 5G, and sending the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle in the same cluster with the master vehicle through 4G or 5G; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the vehicle networking protocol message broadcasted by the vehicle-mounted central control unit of the main vehicle through 4G or 5G, and forwarding the received vehicle networking protocol message to the top cluster server through 4G or 5G.
Optionally, the adjacent low-level cluster server is specifically configured to:
and receiving the Internet of vehicles protocol message sent by the top cluster server through 4G or 5G, and sending the Internet of vehicles protocol message to the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster through 4G or 5G.
Optionally, the novel V2X system further includes: an encoding unit;
the encoding unit is used for encoding the main vehicle coordinates into binary values; wherein the binary value represents a geographic area.
Optionally, the encoding unit is specifically configured to:
encoding the host vehicle coordinates into binary values using a geographic coordinate hash encoding algorithm; wherein the binary value represents a geographic area.
Optionally, the encoding unit is further configured to:
encoding the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle into binary values by using the geographic coordinate Hash encoding algorithm to determine whether the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle are in the same geographic area as the master vehicle.
Optionally, the novel V2X system further includes: a cluster dividing unit;
and the cluster dividing unit is used for dividing the novel V2X system deployment area into clusters according to the longitude and latitude information.
According to the technical scheme, the novel V2X system is deployed without depending on expensive OBU equipment and RSU equipment, so that the cost and difficulty of system deployment are greatly reduced; each unit and each server realize information interaction between the master vehicle and the slave vehicle by broadcasting, receiving and forwarding the Internet of vehicles protocol message, reduce the additionally increased power consumption of braking, accelerating and the like of the vehicle, reduce the pollution emission of the vehicle, reduce traffic accidents and relieve traffic jam; the 4G or 5G receiving or broadcasting vehicle networking protocol message meets the delay requirement, and the communication efficiency between the master vehicle and the slave vehicle is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a conventional V2X system according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a novel V2X system according to an embodiment of the present invention;
fig. 3 is a flow chart of a broadcast BSM according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Existing V2X uses OBU devices with DSRC or C-V2X communication capabilities for short-range, timely communication. Taking vehicle collision detection as an example, the existing C-V2X OBU device communication process is as follows:
step 1: the host vehicle continuously broadcasts its own state to surrounding vehicles through C-V2X during running. The self state information is contained in the Internet of vehicles protocol message and comprises information such as vehicle running position, vehicle identification, speed and acceleration.
Step 2: if the slave vehicle is within the broadcast communication distance of the master vehicle (800 m is C-V2X), the slave vehicle receives the master vehicle-to-vehicle networking protocol message and calculates whether the collision is possible according to the running state of the slave vehicle and the state of the remote vehicle. If a collision occurs, an alarm is generated.
The OBU equipment plays a role in the preceding vehicle collision early warning scene:
requirement 1: selecting vehicles around 800m according to local broadcasting requirements;
requirement 2: and (4) a time delay requirement, namely informing the vehicle of the motion state information of the vehicle within 100ms delay. Wherein 100ms is the maximum delay of the collision warning scene specified in the T/CSAE 53-2017 protocol.
Fig. 2 shows a schematic structural diagram of a novel V2X system provided in this embodiment, including:
the vehicle-mounted central control unit 21 of the main vehicle is used for broadcasting the vehicle networking protocol message to the low-layer cluster server;
the vehicle-mounted central control unit 22 of the slave vehicle in the same cluster as the master vehicle is used for receiving the vehicle networking protocol message sent by the low-level cluster server;
the vehicle-mounted central control unit 23 of the slave vehicle adjacent to the master vehicle cluster is used for receiving the vehicle networking protocol message sent by the adjacent low-layer cluster server;
the low-level cluster server 24 is configured to calculate a distance between the master vehicle and a cluster edge, receive the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the master vehicle when the distance between the master vehicle and the cluster edge is greater than a preset distance, and send the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle in the same cluster as the master vehicle; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the main vehicle, and forwarding the received vehicle networking protocol message to the top cluster server;
the top cluster server 25 is used for receiving the vehicle networking protocol message forwarded by the low-layer cluster server when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, determining a cluster adjacent to the cluster where the low-layer cluster server is located according to the vehicle networking protocol message, and sending the vehicle networking protocol message to the adjacent low-layer cluster server in the adjacent cluster;
the adjacent low-layer cluster server 26 is configured to receive the car networking protocol message sent by the top-layer cluster server; and sending the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster.
In the embodiment of the invention, the master vehicle and the slave vehicle are both provided with vehicle-mounted central control units. The V2X service is implemented by a two-tier cluster server (a lower-tier cluster server and a top-tier cluster server).
In an embodiment of the present invention, the novel V2X system includes: as shown in fig. 2, an on-board central control unit 21 of a master vehicle, an on-board central control unit 22 of a slave vehicle in the same cluster as the master vehicle, an on-board central control unit 23 of a slave vehicle in a cluster adjacent to the master vehicle, a low-level cluster server 24, a top-level cluster server 25, and an adjacent low-level cluster server 26.
In the embodiment of the present invention, the vehicle networking protocol message includes protocol messages such as BSM, RSM, RSI, and the like.
In the embodiment of the present invention, the BSM in the car networking protocol message is taken as an example.
In the embodiment of the present invention, as shown in fig. 3, an on-board center control unit, that is, an on-board center control unit 21 of the host vehicle is mounted on the host vehicle. The onboard central control unit 21 of the host vehicle may be used to periodically broadcast the BSM to the low-level cluster servers as shown in fig. 3.
In the embodiment of the invention, as shown in fig. 3, the slave vehicles in the same cluster as the master vehicle can receive the BSM sent by the low-level cluster server, so that the probability of collision between the master vehicle and the slave vehicles can be calculated, and the collision can be avoided. As shown in fig. 3, the slave vehicles in the same cluster as the master vehicle are mounted with on-board central control units 22 of the slave vehicles in the same cluster as the master vehicle. The onboard central control unit 22 of the slave vehicle in the same cluster as the master vehicle can be used for receiving the BSM sent by the low-level cluster server shown in fig. 3. It should be noted that, if the radius of the cluster is greater than the communication distance of the preset radius, the vehicle receiving the BSM is a subset of the vehicles in the cluster, that is, a subset of the vehicles with the radius within the preset radius, and meets requirement 1, that is, the local area broadcast requirement.
In the embodiment of the present invention, as shown in fig. 3, the on-board central control unit 23 of the slave vehicle in the cluster adjacent to the master vehicle is mounted on the slave vehicle in the cluster adjacent to the master vehicle. The onboard central control unit 23 of the slave vehicle in the cluster adjacent to the master vehicle can be used for receiving the BSM sent by the adjacent low-level cluster server as shown in fig. 3.
In the embodiment of the present invention, a low-level cluster server shown in fig. 3, that is, the low-level cluster server 24 in fig. 2, may be configured to calculate a distance between the master and a cluster edge, receive the BSM broadcast by the on-board central control unit 21 of the master when the distance between the master and the cluster edge is greater than a preset distance, and send the BSM to the on-board central control unit 22 of the slave in the same cluster as the master; or when the distance between the host vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the BSM broadcasted by the vehicle-mounted central control unit 21 of the host vehicle, and forwarding the received BSM to the top cluster server 25.
In an embodiment of the present invention, the top cluster server shown in fig. 3, that is, the top cluster server 25 in fig. 2, may be configured to receive the BSM forwarded by the lower cluster server 24 when the distance between the host vehicle and the cluster edge is less than or equal to the preset distance, determine a cluster adjacent to the cluster where the lower cluster server 24 is located according to the BSM, and send the BSM to the adjacent lower cluster server 26 in the adjacent cluster. It should be noted that, when the number of the low-level cluster servers is less than the preset number, one top-level cluster server may be deployed, and the low-level cluster servers share the top-level cluster server. However, when the number of the low-level cluster servers is greater than or equal to the preset number, the top-level cluster servers with the corresponding number can be deployed according to the number of the low-level cluster servers. In the embodiment of the present invention, taking the preset number of 10 and the number of low-level cluster servers of 9 as an example, obviously, if the number of low-level cluster servers 9 is less than the preset number of 10, one top-level cluster server is deployed, and the 9 low-level cluster servers share the top-level cluster server. In addition, in the embodiment of the present invention, taking the preset number of 10 and the number of low-level cluster servers of 40 as an example, obviously, the number of low-level cluster servers 40 is greater than the preset number of 10, at this time, 4 top-level cluster servers are deployed, and each 10 low-level cluster servers share one top-level cluster server.
In the embodiment of the present invention, the adjacent low-level cluster server shown in fig. 3, i.e. the adjacent low-level cluster server 26 in fig. 2, may be configured to receive the BSM sent by the top-level cluster server 25 and send the BSM to the on-board central control unit 23 of the slave vehicle in the cluster adjacent to the master vehicle.
The embodiment of the invention deploys a novel V2X system without depending on expensive OBU equipment and RSU equipment, thereby greatly reducing the cost and difficulty of system deployment; each unit and each server realize information interaction between the master vehicle and the slave vehicle through broadcasting, receiving and sending the BSM, reduce additional increased power consumption of braking, accelerating and the like of the vehicle, reduce pollution emission of the vehicle, reduce traffic accidents and relieve traffic jam.
Further, on the basis of the above system embodiment, the vehicle networking protocol message includes a vehicle driving position, a vehicle identifier, a speed and an acceleration.
In the embodiment of the present invention, the vehicle networking protocol message includes protocol messages such as BSM, RSM, RSI, and the like. Wherein the BSM includes a vehicle driving location, a vehicle identification, a speed, and an acceleration.
According to the embodiment of the invention, whether the distance between the slave vehicle and the master vehicle is within the safe distance range can be judged through the vehicle running positions, the vehicle marks, the speed and the acceleration of the master vehicle and the slave vehicle, so that traffic accidents are reduced.
Further, on the basis of the above system embodiment, the on-board central control unit 22 of the slave vehicle in the same cluster as the master vehicle is further configured to:
and judging whether the distance between the slave vehicles in the same cluster with the master vehicle and the master vehicle is within a first safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicles in the same cluster with the master vehicle and the master vehicle.
In the embodiment of the present invention, the vehicle-mounted central control unit 22 of the slave vehicle in the same cluster as the master vehicle may be configured to not only receive the BSM sent by the low-level cluster server 24, but also determine whether the distance between the slave vehicle in the same cluster as the master vehicle and the master vehicle is within the first safety distance according to the vehicle traveling positions, the vehicle identifications, the speed and the acceleration information of the slave vehicle in the same cluster as the master vehicle and the master vehicle.
According to the embodiment of the invention, whether the distance between the slave vehicle and the master vehicle in the same cluster as the master vehicle is within the safe distance is judged according to the vehicle running position, the vehicle identification, the speed and the acceleration information of the slave vehicle and the master vehicle in the same cluster as the master vehicle, so that traffic accidents are reduced.
Further, on the basis of the above system embodiment, the on-board central control unit 23 of the slave vehicle in the cluster adjacent to the master vehicle is further configured to:
and judging whether the distance between the slave vehicle adjacent to the master vehicle cluster and the master vehicle is within a second safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicle adjacent to the master vehicle cluster and the master vehicle.
In the embodiment of the present invention, the onboard central control unit 23 of the slave vehicle in the cluster adjacent to the master vehicle may be configured to receive the BSM transmitted by the adjacent low-level cluster server 26, and may be configured to determine whether the distance between the slave vehicle in the cluster adjacent to the master vehicle and the master vehicle is within the second safety distance according to the vehicle traveling positions, the vehicle identifications, the speed and the acceleration information of the slave vehicle in the cluster adjacent to the master vehicle and the master vehicle.
According to the embodiment of the invention, whether the distance between the slave vehicle and the master vehicle in the cluster adjacent to the master vehicle is within the safe distance is judged according to the vehicle running position, the vehicle identification, the speed and the acceleration information of the slave vehicle and the master vehicle in the cluster adjacent to the master vehicle, so that traffic accidents are reduced.
Further, on the basis of the above system embodiment, the low-level cluster server 24 is specifically configured to: calculating the distance between the master vehicle and the edge of the cluster, receiving the BSM broadcasted by the vehicle-mounted central control unit of the master vehicle through 4G or 5G when the distance between the master vehicle and the edge of the cluster is larger than the preset distance, and sending the BSM to the vehicle-mounted central control unit of the slave vehicle in the same cluster with the master vehicle through 4G or 5G; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the BSM broadcasted by the vehicle-mounted central control unit of the main vehicle through 4G or 5G, and forwarding the received BSM to the top cluster server through 4G or 5G.
In the embodiment of the present invention, the low-level cluster server 24 determines whether the host vehicle is located at the cluster edge by calculating the distance between the host vehicle and the cluster edge. And when the distance between the main vehicle and the cluster edge is greater than the preset distance, judging that the main vehicle is not positioned at the cluster edge, otherwise, judging that the main vehicle is positioned at the cluster edge. When the master vehicle is not at the cluster edge, the low-level cluster server 24 receives the BSM broadcasted by the onboard central control unit 21 of the master vehicle through 4G or 5G, and transmits the BSM to the onboard central control unit 22 of the slave vehicle in the same cluster as the master vehicle through 4G or 5G; when the host vehicle is at the cluster edge, the low-level cluster server 24 receives the BSM broadcast by the on-board central control unit 21 of the host vehicle through 4G or 5G, and forwards the received BSM to the top-level cluster server 25 through 4G or 5G.
The embodiment of the invention meets the requirement 1, namely the delay requirement, by broadcasting, receiving or sending the BSM through the 4G or 5G, and improves the communication efficiency between the master vehicle and the slave vehicle.
Further, on the basis of the above system embodiment, the adjacent low-level cluster server 26 is specifically configured to: the BSM sent by the top cluster server is received through 4G or 5G, and the BSM is sent to the vehicle-mounted central control unit of the slave vehicle of the cluster adjacent to the master vehicle through 4G or 5G.
In this embodiment of the present invention, the adjacent lower cluster server 26 may be configured to receive the BSM sent by the top cluster server 25 through 4G or 5G; the BSM may also be transmitted to the on-board central control unit 23 of the slave vehicles in the cluster adjacent to the master vehicle through 4G or 5G.
According to the embodiment of the invention, the BSM is received or sent through the 4G or 5G, the requirement 1, namely the delay requirement, is met, and the communication efficiency between the master vehicle and the slave vehicle is improved.
Further, on the basis of the above system embodiment, the novel V2X system further includes: an encoding unit;
the encoding unit is used for encoding the main vehicle coordinates into binary values; wherein the binary value represents a geographic area.
In an embodiment of the present invention, the novel V2X system further includes a coding unit for coding the host vehicle coordinates into binary values; wherein the binary value represents a geographic area. The longer the binary length, the greater the precision of the partitioning.
According to the embodiment of the invention, the coordinates of the main vehicle are coded into binary values to determine the geographic area for subsequently searching for the adjacent vehicle, so that the traffic accidents are reduced, and the traffic jam is reduced.
Further, on the basis of the above system embodiment, the encoding unit is specifically configured to: encoding the host vehicle coordinates into binary values using a geographic coordinate hash encoding algorithm; wherein the binary value represents a geographic area.
In an embodiment of the present invention, the encoding unit is specifically configured to encode the host vehicle coordinates into binary values using a geographic coordinate hash coding algorithm; wherein the binary value represents a geographic area.
According to the embodiment of the invention, the geographical coordinate Hash coding algorithm is used for coding the main vehicle coordinate into the binary value to determine the geographical area for subsequently searching the adjacent vehicle, so that the traffic accidents are reduced, and the traffic jam is slowed down.
Further, on the basis of the above system embodiment, the encoding unit is further configured to: encoding the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle into binary values by using the geographic coordinate Hash encoding algorithm to determine whether the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle are in the same geographic area as the master vehicle.
In an embodiment of the present invention, the encoding unit is further configured to encode the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle into binary values using the geographic coordinate hash coding algorithm to determine whether the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle are in the same geographic area as the master vehicle.
According to the embodiment of the invention, whether the secondary vehicles in the same cluster as the main vehicle and the secondary vehicles in the cluster adjacent to the main vehicle are in the same geographical area as the main vehicle is determined, so that the occurrence of traffic accidents is reduced, and the traffic jam is slowed down.
It should be noted that two vehicles with the same binary value obtained by using the geographic coordinate hash coding algorithm are neighboring vehicles.
Further, on the basis of the above system embodiment, the novel V2X system further includes: a cluster dividing unit;
and the cluster dividing unit is used for dividing the novel V2X system deployment area into clusters according to the longitude and latitude information.
In the embodiment of the present invention, the cluster dividing unit is configured to divide the new V2X system deployment area into clusters according to longitude and latitude information. And a low-level server is deployed for each cluster and is responsible for communication of vehicles in the cluster.
According to the embodiment of the invention, the deployment area of the novel V2X system is divided into clusters, and a low-level server is deployed for each cluster to be responsible for communication of vehicles in the cluster, so that traffic accidents are reduced, and traffic jam is slowed down.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A novel V2X system, comprising:
the vehicle-mounted central control unit of the main vehicle is used for broadcasting the vehicle networking protocol message to the low-layer cluster server;
the vehicle-mounted central control unit of the slave vehicle in the same cluster as the master vehicle is used for receiving the vehicle networking protocol message sent by the low-layer cluster server;
the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster is used for receiving the vehicle networking protocol message sent by the adjacent low-layer cluster server;
the low-level cluster server is used for calculating the distance between the master vehicle and the cluster edge, receiving the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the master vehicle when the distance between the master vehicle and the cluster edge is greater than a preset distance, and sending the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle in the same cluster with the master vehicle; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the vehicle networking protocol message broadcast by the vehicle-mounted central control unit of the main vehicle, and forwarding the received vehicle networking protocol message to the top cluster server;
the top cluster server is used for receiving the Internet of vehicles protocol message forwarded by the low-level cluster server when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance; determining a cluster adjacent to the cluster where the low-layer cluster server is located according to the Internet of vehicles protocol message, and sending the Internet of vehicles protocol message to the adjacent low-layer cluster server in the adjacent cluster;
and the adjacent low-layer cluster server is used for receiving the Internet of vehicles protocol message sent by the top-layer cluster server and sending the Internet of vehicles protocol message to the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster.
2. The novel V2X system according to claim 1, wherein the internet of vehicles protocol messages include vehicle travel location, vehicle identification, speed, and acceleration.
3. The novel V2X system according to claim 2, wherein the on-board central control unit of the slave cars clustered with the master car is further configured to:
and judging whether the distance between the slave vehicles in the same cluster with the master vehicle and the master vehicle is within a first safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicles in the same cluster with the master vehicle and the master vehicle.
4. The novel V2X system according to claim 2, wherein the on-board central control unit of the slave car in the cluster adjacent to the master car is further configured to:
and judging whether the distance between the slave vehicle adjacent to the master vehicle cluster and the master vehicle is within a second safe distance according to the vehicle running positions, the vehicle identifications, the speed and the acceleration information of the slave vehicle adjacent to the master vehicle cluster and the master vehicle.
5. The novel V2X system according to claim 1, wherein the low-level cluster server is specifically configured to:
calculating the distance between the master vehicle and the cluster edge, and when the distance between the master vehicle and the cluster edge is greater than the preset distance, receiving the vehicle networking protocol message broadcasted by the vehicle-mounted central control unit of the master vehicle through 4G or 5G, and sending the vehicle networking protocol message to the vehicle-mounted central control unit of the slave vehicle in the same cluster with the master vehicle through 4G or 5G; or when the distance between the main vehicle and the cluster edge is smaller than or equal to the preset distance, receiving the vehicle networking protocol message broadcasted by the vehicle-mounted central control unit of the main vehicle through 4G or 5G, and forwarding the received vehicle networking protocol message to the top cluster server through 4G or 5G.
6. The novel V2X system according to claim 1, wherein the neighboring low-level cluster servers are specifically configured to:
and receiving the Internet of vehicles protocol message sent by the top cluster server through 4G or 5G, and sending the Internet of vehicles protocol message to the vehicle-mounted central control unit of the slave vehicle adjacent to the master vehicle cluster through 4G or 5G.
7. The novel V2X system according to claim 1, wherein the novel V2X system further comprises: an encoding unit;
the encoding unit is used for encoding the main vehicle coordinates into binary values; wherein the binary value represents a geographic area.
8. The novel V2X system according to claim 7, wherein the encoding unit is specifically configured to:
encoding the host vehicle coordinates into binary values using a geographic coordinate hash encoding algorithm; wherein the binary value represents a geographic area.
9. The novel V2X system according to claim 8, wherein the encoding unit is further configured to:
encoding the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle into binary values by using the geographic coordinate Hash encoding algorithm to determine whether the slave vehicles in the same cluster as the master vehicle and the slave vehicles in the cluster adjacent to the master vehicle are in the same geographic area as the master vehicle.
10. The novel V2X system according to claim 1, wherein the novel V2X system further comprises: a cluster dividing unit;
and the cluster dividing unit is used for dividing the novel V2X system deployment area into clusters according to the longitude and latitude information.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883263A (en) * | 2012-09-19 | 2013-01-16 | 合肥工业大学 | VANET clustering and maintenance method based on distance of adjacent vehicles |
| CN106162806A (en) * | 2016-08-31 | 2016-11-23 | 四川长虹通信科技有限公司 | A kind of car networked system network-building method, device and car networked system |
| CN106792977A (en) * | 2017-01-25 | 2017-05-31 | 南通大学 | Double cluster head method for routing based on traffic density in vehicular ad hoc network |
| US20180174449A1 (en) * | 2016-12-19 | 2018-06-21 | ThruGreen, LLC | Connected and adaptive vehicle traffic management system with digital prioritization |
| CN108882329A (en) * | 2018-07-27 | 2018-11-23 | 中国联合网络通信集团有限公司 | A kind of cluster-dividing method and device |
| CN109359877A (en) * | 2018-10-26 | 2019-02-19 | 北京摩拜科技有限公司 | Vehicle dispatching method, server and Vehicular system |
-
2019
- 2019-12-24 CN CN201911348681.XA patent/CN111629357B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102883263A (en) * | 2012-09-19 | 2013-01-16 | 合肥工业大学 | VANET clustering and maintenance method based on distance of adjacent vehicles |
| CN106162806A (en) * | 2016-08-31 | 2016-11-23 | 四川长虹通信科技有限公司 | A kind of car networked system network-building method, device and car networked system |
| US20180174449A1 (en) * | 2016-12-19 | 2018-06-21 | ThruGreen, LLC | Connected and adaptive vehicle traffic management system with digital prioritization |
| CN106792977A (en) * | 2017-01-25 | 2017-05-31 | 南通大学 | Double cluster head method for routing based on traffic density in vehicular ad hoc network |
| CN108882329A (en) * | 2018-07-27 | 2018-11-23 | 中国联合网络通信集团有限公司 | A kind of cluster-dividing method and device |
| CN109359877A (en) * | 2018-10-26 | 2019-02-19 | 北京摩拜科技有限公司 | Vehicle dispatching method, server and Vehicular system |
Non-Patent Citations (1)
| Title |
|---|
| 杨羽琦等: "车载自组织网络中基于车辆密度的双簇头路由协议", 《计算机科学》 * |
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