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Vehicle broadcast communication control method based on information physical system

A technology of cyber-physical system and broadcast communication, which is applied in the field of vehicle broadcast communication control based on cyber-physical system, and can solve problems such as large errors and sensor interference

Pending Publication Date: 2021-07-13
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sensor of the vehicle is always accompanied by interference from noise and other uncertain factors, especially the GPS signal obtained through external communication methods, which may have large errors

Method used

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  • Vehicle broadcast communication control method based on information physical system
  • Vehicle broadcast communication control method based on information physical system
  • Vehicle broadcast communication control method based on information physical system

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Embodiment Construction

[0082] The cyber-physical system-based vehicle broadcast communication control method of the present invention will be further described in detail below with reference to illustrations.

[0083] The algorithmic model of the present invention is based on certain assumptions, and said assumptions include:

[0084] Assumption 1: The controlled vehicles are all intelligent vehicles, which have functions such as perception, calculation, control, and communication;

[0085] Assumption 2: Assume that the observations of the vehicle sensors are independent of each other;

[0086] Hypothesis 3: Assume that the noise of each observation follows a Gaussian distribution;

[0087] Hypothesis 4: Assume that under ideal communication conditions, there is no packet loss and delay in broadcast information.

[0088] The example of the present invention is to simulate the driving behavior of the vehicle indoors by the unmanned robot, and obtain the position and speed of the vehicle by measurin...

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Abstract

The invention discloses a vehicle broadcast communication control method based on an information physical system, and designs an event trigger broadcast control system architecture integrating state estimation, which comprises four parts, namely a multi-sensor module, a track plotting module, a state estimator and a scheduling unit. State information as accurate as possible is obtained through a state estimator according to measurement information obtained by the multi-sensor module. A vehicle interconnection communication network is formed through a scheduling unit and a track plotting module, a proper event triggering condition is designed in combination with an estimation result, and when the triggering condition is met, motion data of a vehicle is broadcasted to an adjacent vehicle. The effectiveness of the method is verified by building an unmanned driving simulation platform, and the communication capability of the method in different traffic flow scenes is evaluated by using SUMO and NS3. Experimental results show that the method can significantly reduce the communication frequency and improve the utilization rate of vehicle network resources on the premise of ensuring the vehicle state tracking precision.

Description

technical field [0001] The invention relates to the technical field of Internet of Vehicles application, in particular to a vehicle broadcast communication control method based on a cyber-physical system, which is used to realize mutual awareness of state information of vehicles in a road network, so as to ensure traffic safety and satisfy vehicle application programs. Background technique [0002] In recent years, with the development of science and technology and the improvement of the fifth-generation mobile network technology, the application scope of wireless communication technology has been further broadened. Intelligent Transportation System), which can provide basic support for high-speed communication between vehicles or between vehicles and roadside infrastructure. Through the comprehensive application of satellite positioning, satellite navigation, geographic information system, sensors, radar technology, computer, network, mobile communication, mobile terminal, ...

Claims

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Application Information

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IPC IPC(8): H04W4/029H04W4/06H04W4/40H04W24/06
CPCH04W4/029H04W4/06H04W4/40H04W24/06Y02D30/70
Inventor 张利国江丰尧
Owner BEIJING UNIV OF TECH
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