A vehicle-to-vehicle collision detection method and application system based on v2x

Abstract

The invention discloses a vehicle-to-vehicle collision detection method and application system based on V2X, including (1) a data interaction module: realizing parsing and encapsulation of original data of vehicle motion state and V2V communication message set. (2) Coordinate conversion and projection module: Based on the vehicle motion state data and the external configuration of the earth's geometric attribute data, it realizes the conversion from the geocentric coordinate system to the Gaussian plane coordinate system based on the vehicle carrier. (3) Calculation module of safe distance between vehicles: solve the expected moving distance of the car, the coordinates of the vertex of the plane of the car, and introduce the parameters of safe distance between vehicles to realize the prediction of collision risk. (4) Collision risk detection module: judge the overlap of the coverage area between two cars to realize collision detection. The present invention is based on the BSM vehicle basic safety attribute message broadcast by V2V communication. In order to improve the accuracy of collision detection, the vehicle body size parameters are introduced to realize accurate calculation of the edge of the vehicle body and achieve the purpose of collision detection.

Description

【Technical field】 [0001] The invention relates to the technical field of vehicle collision detection for traffic safety, in particular to a V2X-based vehicle collision detection method and application system. 【Background technique】 [0002] Vehicle-to-vehicle communication-based target detection and state awareness in the V2X Internet of Vehicles environment, vehicle-to-vehicle collision risk detection is an important means to assist drivers and improve driving safety. The Internet of Vehicles environment ensures high-frequency, low-latency, and data accuracy of vehicle-to-vehicle communication, and supports real-time transmission of vehicle motion status and static configuration information. However, based on information transmission, how to realize accurate and multi-dimensional vehicle target detection and state perception is a current problem. On the one hand, due to the lack of complete vehicle static data (such as body size), on the other hand, there is also a lack of...

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Problems solved by technology

[0004] In view of this, in order to overcome the deficiencies of the prior art, the present invention provides a vehicle-to-vehicle collision detection method and application system based on V2X. Aiming at the problem of insufficient vehicle target detection dimensions in the Internet of Vehicles environment, a two-dimensional numerical model of the vehicle coverage area is established. , to accurately predict the relative position between two vehicles, and to solve the problem of inaccurate collision detection, a vertex ray and plane edge intersection method is proposed to accurately determine vehicle collision

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