摘要
为了预防高速公路连环撞击事件的发生,设计了车载防连环撞预警装置.采用超低功耗MSP430单片机作为CPU控制模块,将剧烈变化的加速度作为事故发生的重要判据.结合GPS接收模块,实时接收全球定位卫星发出的定位信息,计算车辆的准确位置,并进行路段匹配.一次事故发生后,利用无线通信模块实现事故车辆方位信息的传输,判定自身车辆如位于事故车辆同路段后方,则进行预警.实验表明,该装置实现了车辆的事故判断和定位,能够有效防止二次事故的发生.
A design of anti-collision warning device was proposed to prevent the chain collision events.The ultra low power microcontroller MSP430 was used as CPU control module. Mutation of acceleration was seen as the most important judging condition of a traffic accident. When an accident happened,GPS module calculated the accurate location of the accident and sent it out. All vehicles a round the accident vehicle in 3 km would make matching section after receiving accident information. The vehicles would receive alarm if they were behind of the accident vehicle. The experimental results showed that the accident could be identified and located by the device,and the secondary traffic accident on high-way could be prevented effectively.
出处
《郑州大学学报（理学版）》
CAS
北大核心
2015年第2期78-82,共5页
Journal of Zhengzhou University:Natural Science Edition
关键词
加速度
无线定位
路段匹配
二次事故
预警
acceleration
wireless location
section matching
secondary accident
early warning
