| The issue of traffic safety has always been a matter of concern to the society.The number of accidents has been increasing with the number of vehicles.However,with the rapid rise of the Internet,it can solve the problem of vehicle collision by controlling cars in the local area network.This paper uses 4G,DSRC and Bluetooth multi-mode communication as the object of the study.Anti-collision warning algorithm and voice control technology are studied in depth.Meanwhile,the overall system architecture of “DSRC communication equipment + vehicle intelligent terminal + android phone” is proposed in this paper.The main contents and conclusions of this paper are as follows:First,the realization scheme of vehicle collision prevention system,intelligent terminal and voice control application is summarized.At the same time,the development status,system architecture and working principle of anti-collision alert and voice control system were expounded by analyzing the layout of the automatic enterprises.Based on this,the system hardware architecture of this paper is proposed.Among them,Bluetooth and 4G realize from short-range communication to ultra-remote communication,and the DSRC device implements the ultra-low delay communication application scene.Second,the key technology,the advantages and disadvantages of the existing anticollision control system are summarized.On this basis,a new intelligent terminal based on STM32F103 processor is constructed.the T-Box collects real-time vehicle data and implements remote control vehicle.A collision warning system based on DSRC technology is also developed,this system realize the voice warning function when the front vehicles brake urgently.Meanwhile,designed voice assistant control function based on Android phone.This paper completed the test of emergency brake voice alert and remote speech control of the vehicle.The feasibility of the design scheme of emergency braking speech alert and remote speech control of vehicle based on DSRC is verified.In addition,there is ample room for the development of the system in the area of selfdriving and even the whole area of Internet of things. |