Research Of The Vehicle Moving State Recognition Based On VANET

With the development of the social economy, people’s living standard has improved andmotor vehicles have been increasingly growed. And more and more attention has been paid tothe personal security. How to strengthen the traffic safety management and reduce the trafficaccidents has been a research hotspot in the domestic and foreign scholars. As the vehicles’controller, drivers’ driving behavior largely determines the safe of traffic system.The vehicledangerous state recognition and warning in time has great significance in prevent theoccurrence of traffic accidents. This paper uses the acceleration parameter to distinguishdifferent vehicle state. Base on it, the concept of the vehicle state problem is transformed intoactual numerical problem. The vehicle state recognition can realize by analyse the vehicle’sthree-dimensional acceleration output characteristics. This paper’s work and research contentis divided into the following three aspects:Firstly, this paper completed the design of vehicle acceleration acquisition system.Including realize the SPI communication between the Friendly Mini2440ARM developmentboard and ADI ADXL345acceleration sensor. Complete the code work of the device driverand application program.Then verify the accuracy of the acquisition system.This paper uses this acceleratedacquisition system to collect the acceleration data when vehicle in brake, turn left, and rightturn status. According to the physical model of quantitative analysis and the collectacceleration data output curve analysis in different vehicle moving state, summarizes theacceleration output curve variation characteristics when the vehicle in different moving state.Finally, according to the experimental analysis results in different vehicle state, Thispaper put forward to the the realization method of vehicle movement state recognition by theacceleration sensor’s three-dimensional output data. Establish a one to three level dangerstandard in brake and trun state.Integrated the acquisition system with recognition algorithmand establish the vehicle state recognition system.and then test the recognition system andmake a performance analysis.