基于无线传感器网络的小汽车信号预警系统设计与应用

Design and application of car signal early warning system based on wireless sensor network

由于闯红灯导致交通事故多发,在交叉口排队通行期间常发生由于驾驶员控制不当而导致的追尾事故。本设计采用无线传感网络技术与车载导航系统相结合,即由车载移动终端设备、无线传感网络组成小汽车信号预警系统,该系统能双向发送和接收红绿灯信号时间信息以及根据车辆的速度、离停止线的距离、红绿灯信号时间信息等综合分析判断发出相应的语音提示信号,以引起驾驶者的注意,能根据红绿信号灯时间信息提前做好相应准备;最后对该系统的实际应用效果进行简要的测试分析。

As the red light often causes traffic accidents,and improper driver control leads to frequent rear-end collisions during the line-up at intersections.This design uses wireless sensor network technology combined with the car navigation system.That is a car signal warning system composed of vehicle-mounted mobile terminal devices and wireless sensor networks.The system can send and receive traffic light signal time information in both directions.Through comprehensive analysis of the speed of the vehicle,the distance from the stop line and the time signal of the traffic light signal to determine and send a voice prompt.it can cause the driver’s attention.Finally,the actual application effect of the system is briefly tested and analyzed.