System and method of guiding highway safety vehicle speed in foggy environment for intelligent connected vehicle

Abstract

The invention provides a system for guiding a highway safety vehicle speed in a foggy environment for intelligent connected vehicle, which comprises a road-side device arranged at the road side and a vehicle-mounted device arranged in a vehicle, and a vehicle speed guiding module, wherein the vehicle-mounted device is used for acquiring the visibility information of the road in real time, the visibility information and the real-time operation state of the vehicle are sent to the road-side device through a wide area wireless communication technology, and the best vehicle speed sent by the road-side device is received and serves as reference for a driver; the road-side device comprises an information communication module for communicating with the vehicle-mounted device by using a network communication mode; and the vehicle speed guiding module is used for calculating and analyzing the best vehicle speed according to the real-time operation state information of each vehicle on the road section and the visibility information, and the best vehicle speed is sent to all vehicles on the road section via the information communication module. According to the real-time operation state information provided by each vehicle and the visibility information, the best vehicle speed is calculated for the driver as reference, and traffic accidents due to an overlarge vehicle speed can be avoided.

Description

technical field [0001] The invention belongs to the field of intelligent traffic safety control, and in particular relates to a safety speed guidance system and method for highways in foggy environment for intelligent networked vehicles. Background technique [0002] In my country, heavy fog is one of the most important disaster-causing weather in severe weather conditions. Studies have shown that the probability of traffic accidents in a foggy environment is more than six times the average probability of traffic accidents on expressways. Due to the characteristics of suddenness, partiality, and low visibility of fog, the driver suddenly loses sight when entering the area covered by heavy fog, and instinctively brakes suddenly, which may easily lead to serial rear-end collision accidents. In addition, the decline in visibility will lead to a decrease in the driver's ability to obtain traffic information, which is prone to hesitation, negligence, and even illusions. It can ...

AI Technical Summary

Problems solved by technology

The patent application number 201520158160.9 provides a vehicle guidance system for highways in foggy conditions, and does not consider vehicles sharing road visibility information through networking technology; patent 201110422688.9 mentions an expressway based on real-time traffic flow and weather information The variable speed limit control method does not take into account the influence of speed difference on traffic accidents on the foggy expressway

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