A roadside node high-risk vehicle warning prompt method suitable for vehicle short-distance communication network

Abstract

The invention discloses a road-side node based high risk vehicle alerting method employing a V2X network. The main realization mode is utilizing the road side node which has the advantages of high antenna disposition position and large cover range in the Vehicle to X network (hereinafter referred to as V2X), the positions of each vehicle and the surrounding vehicle are obtained through receiving the message of geographical position information in the cover range, and the velocity, the distance, the characteristics of acceleration and deceleration of the vehicle are obtained. The Bayes networkis determined according to the expert experience, and the condition probability between nodes of the Bayes network is determined, the history data is utilized to perform learning, and the Bayes network used for evaluating is finally determined. When the danger probability of a vehicle is higher than the threshold set by the system, the danger level and the danger factor are broadcasted to the vehicle and the surrounding vehicle through the V2X network, and a vehicle device of the vehicle calls attention of the driver to correct through a sound-light alarm.

Description

technical field [0001] The invention relates to a warning prompt method for roadside node high-risk vehicles suitable for a vehicle-mounted short-distance communication network, which belongs to the field of communication and information, especially the technical field of vehicle-mounted communication. Background technique [0002] Vehicle short-distance communication (Vehicle to X: V2X) network is realized by short-distance communication technologies such as wireless communication, GPS / GIS, and sensors. Communication between the workshop (Vehicle-2-Vehicle), the outside of the vehicle (vehicle-2-Infrastructure), and the vehicle (Vehicle-2-Person). [0003] The vehicle-mounted nodes in V2X are equipped with GPS or Beidou and other equipment. The vehicle-mounted nodes regularly broadcast information such as the geographic location of the node (called heartbeat information) to the surroundings according to the set time interval, and also receive the heartbeat information sent ...

AI Technical Summary

Problems solved by technology

[0005] Effectively evaluate the driver's driving behavior, find high-risk vehicles, and remind the driver in time, which can effectively improve road traffic safety. However, in traditional road management, due to the inability to obtain real-time driving conditions of vehicles in a certain area, this function difficult to implement

[0006] Using the advantages of roadside nodes in the V2X network, information on vehicles in a larger range can be obtained, but the identification of high-risk vehicles needs to face comprehensive identification of multiple factors, and it is a random probability event, so in the algorithm facing greater difficulties

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