基于STM32和Zigbee的智能车路协同系统的设计和实现

Design and Implementation of Intelligent Vehicle Infrastructure Cooperative Systems based on STM32 and Zigbee

文章以车辆顺利安全通过有信号灯的城市十字路口为背景,研究基于STM32微处理器和Zigbee无线通讯协议的智能车路协同系统的设计和实现。整个系统包含智能车载单元和智能路侧单元。路侧单元和车载单元通过Zigbee无线传输协议实现信息交互,智能路侧单元通过实时获取的车辆位置和行驶方向及距离车辆最近的十字路口的红绿灯信息和道路信息,通过速度引导略为驾驶员提供行驶建议,使其不停车通过十字交叉路口,达到安全,畅行的目的。

In this paper,the design and implementation of an intelligent Vehicle Infrastructure Cooperative Systems based on STM32 microprocessor and Zigbee wireless communication protocol is studied under the background of passing through the urban cross intersection with traffic lights smoothly.The system includes intelligent on board unit(OBU)and intelligent road side unit(RSU).The RSU and OBU exchange information by taking advantage of the Zigbee wireless protocol.The RSU based on velocity planning algorithms with the vehicle location,driving direction,the traffic light information and road information of the nearest cross intersection of the vehicle,to provide the dynamic advice speed to driver so the vehicle gets through the intersection without coming to a stop.The travelers can achieve his or her destination safely and unimpeded by anyone.