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CN-121982886-A - Highway holographic sensing communication and collaborative service system based on Beidou and 5G fusion

CN121982886ACN 121982886 ACN121982886 ACN 121982886ACN-121982886-A

Abstract

The invention provides a highway holographic perception communication and collaborative service system based on Beidou and 5G fusion, which belongs to the technical field of intelligent transportation and comprises a perception fusion subsystem and a resource scheduling subsystem, wherein the perception fusion subsystem is used for fusing traffic data from different spatial layers and different main bodies to generate holographic perception information reflecting traffic situation of a whole road section, the traffic data at least comprises high-precision space-time reference data provided by the Beidou system, the collaborative control subsystem is used for generating collaborative control strategies based on the holographic perception information in real time and sending the collaborative control strategies to traffic participation terminals or road side control equipment through a dual-mode communication network fusing a 5G communication link and a Beidou communication link, and the resource scheduling subsystem is used for taking the Beidou high-precision space-time reference as a unified space-time reference and dynamically allocating 5G network resources and edge computing resources based on the holographic perception information. The invention improves the overall efficiency, safety and service level of the traffic system.

Inventors

  • CHEN CHUJIANG
  • LIU DEQIANG
  • WU KAIFENG
  • YU SHAOHUAI
  • YU FEI
  • LUO BOREN
  • XU QIAO
  • YANG JING
  • YAO JINXI

Assignees

  • 中交第二公路勘察设计研究院有限公司

Dates

Publication Date
20260505
Application Date
20260116

Claims (10)

  1. 1. A highway holographic sensing communication and cooperative service system based on Beidou and 5G fusion is characterized by comprising a sensing fusion subsystem, a cooperative control subsystem and a resource scheduling subsystem; the perception fusion subsystem is used for fusing traffic data from different space layers and different main bodies to generate holographic perception information reflecting traffic situation of all road sections, wherein the traffic data at least comprises high-precision space-time reference data provided by a Beidou system, and the Beidou system acquires multi-source data based on a pre-built Beidou foundation enhancement station to obtain the high-precision space-time reference data; the cooperative control subsystem is in communication connection with the perception fusion subsystem and is used for generating a cooperative control strategy in real time based on the holographic perception information and issuing the cooperative control strategy to a traffic participation terminal or road side control equipment through a dual-mode communication network fusing a 5G communication link and a Beidou communication link; The resource scheduling subsystem is used for providing resource scheduling service for the perception fusion subsystem and the cooperative control subsystem, taking the high-precision space-time reference provided by the Beidou system as a unified space-time reference of the system, and dynamically allocating 5G network resources and edge computing resources based on service requirements or event levels reflected by the holographic perception information.
  2. 2. The system of claim 1, wherein the perception fusion subsystem comprises edge fusion nodes deployed at a road side for real-time fusion processing of data from the Beidou positioning terminal, the road side sensing terminal and the vehicle-mounted terminal; The real-time fusion processing comprises the step of fusing the multi-source heterogeneous data by adopting an evidence theory method to determine the confidence level of the state judgment of the traffic participation object.
  3. 3. The system of claim 2, wherein the perception fusion subsystem further comprises a digital twin unit for constructing and updating a three-dimensional traffic scene model containing traffic participant dynamic behavior based on the data processed by the edge fusion nodes, the three-dimensional traffic scene model constituting a visual representation of the holographic perception information.
  4. 4. The system of claim 2, wherein the data from the vehicle terminal is transmitted to the edge fusion node via a 5G network.
  5. 5. The system of claim 1, wherein the cooperative control subsystem comprises a policy decision unit and a communication management unit; The strategy decision unit is used for generating a control strategy containing at least one type of emergency event response, traffic flow efficiency optimization or vehicle collaborative guidance based on the holographic perception information; the communication management unit is used for managing the dual-mode communication network, and when the 5G communication link is judged to not meet the reliability or time delay requirements, the communication management unit is automatically switched to the Beidou communication link to carry out strategy issuing.
  6. 6. The system of claim 5, wherein the communication management unit performs cross-validation based on the context awareness data, the network status data, and the device status data to determine a cause of the 5G communication link failure.
  7. 7. The system of claim 5, wherein the cooperative control subsystem further comprises a priority management unit for assigning different priorities to different types of control policies and prioritizing communication resources and computing resources for high priority control policies.
  8. 8. The system of claim 7, wherein the control strategy priority of the emergency event response is higher than the control strategy priority of the traffic flow efficiency optimization.
  9. 9. The system of claim 1, wherein the resource scheduling subsystem is configured to synchronize the unified space-time reference between system-wide nodes by cooperating a 1PPS pulse signal with a standard time code protocol.
  10. 10. The system of claim 1, wherein the resource scheduling subsystem creates dedicated logical networks with different quality of service guarantees through a 5G network slicing technique to adapt the service requirements or event levels.

Description

Highway holographic sensing communication and collaborative service system based on Beidou and 5G fusion Technical Field The invention relates to the technical field of intelligent transportation, in particular to a highway holographic sensing communication and collaborative service system based on Beidou and 5G fusion. Background The expressway is used as a backbone network of a modern comprehensive transportation system, and the operation efficiency, the safety level and the service capability of the expressway directly influence the regional and even nationwide logistics smoothness and public travel. Along with the promotion of intelligent traffic concepts, the comprehensive perception, real-time interaction and intelligent management and control of traffic systems are realized by utilizing advanced information communication technology, and the intelligent traffic system has become an important direction for improving the management level of expressways. Under the background, a vehicle-road cooperation system for realizing deep interconnection of vehicles, roads, foundation facilities and cloud platforms and a holographic perception concept for pursuing seamless and fine grasp of traffic environment and participant states are gradually becoming research and application hot spots in the intelligent traffic field. However, the prior art still has significant shortcomings in achieving highway holographic awareness and collaborative services. In the perception level, the system is mostly dependent on single type road side equipment (such as cameras or radars) or a civil Global Positioning System (GPS) to collect data, and the problems of limited positioning precision, more perception dead zones in complex scenes such as tunnels or bridges, difficult effective fusion of data from different sources and the like exist, so that the real dynamics of the traffic flow of the whole road section cannot be accurately and continuously restored. In the communication layer, the widely deployed 4G mobile communication network has bottlenecks in time delay, bandwidth and connection density, and high requirements of real-time feedback of mass sensing data and inter-vehicle millisecond control instruction interaction are difficult to meet. In the service and application level, the existing system is often remained in the basic information release stage, the perceived data is disjointed from personalized and accurate services for different users (such as drivers and management parties), and the closed-loop capability from perceived decision to control is lacking, so that the value of holographic perception is not fully converted into actual road network efficiency improvement. In addition, although the Beidou satellite navigation system and the 5G communication technology have advantages in the aspects of accurate positioning and high-speed low-delay communication respectively, the existing scheme is mainly focused on simple superposition or independent application of functions of the Beidou satellite navigation system and the 5G communication technology, and deep 'perception-communication-service' integrated fusion and cooperation are not realized from a system architecture level. In summary, the prior art is difficult to overcome the technical problems of insufficient sensing precision, high communication time delay, poor reliability and lack of real-time closed loop cooperation based on accurate sensing in the expressway scene. Therefore, how to construct an integrated system capable of realizing high-precision holographic sensing and low-delay reliable communication and providing intelligent cooperative service is a technical problem to be solved in the field. Disclosure of Invention In view of the above, it is necessary to provide a highway holographic sensing communication and collaborative service system based on the combination of Beidou and 5G, so as to solve the technical problems of insufficient information sensing precision and poor collaborative service reliability in expressway scenes caused by single type of data acquisition equipment, high communication delay, insufficient bandwidth and weak connection density in the existing mode. In order to solve the technical problems, in a first aspect, the invention provides a highway holographic sensing communication and collaborative service system based on Beidou and 5G fusion, which comprises a sensing fusion subsystem, a collaborative control subsystem and a resource scheduling subsystem; the perception fusion subsystem is used for fusing traffic data from different space layers and different main bodies to generate holographic perception information reflecting traffic situation of all road sections, wherein the traffic data at least comprises high-precision space-time reference data provided by a Beidou system; the cooperative control subsystem is in communication connection with the perception fusion subsystem and is used for generating a cooperative control strat