基于GPS的铁路养护大机机群防撞报警系统设计

The Design on Collision Early Warning System for Large-scale Locomotive Based on GPS

为防止铁路养护大机机群之间的碰撞现象,基于GPS定位与ZigBee无线网络通信技术,以MCS8051单片机为控制核心,构建了不同于传统方案的防碰撞预警系统。系统通过GPS定位得到本机的位置和速度,由赫立讯IP-Link 2220H无线通信模块实现养护大机之间点对点的通信;根据本机的位置和速度以及得到的机群内部其他大机的位置和速度,通过建立安全距离数学模型,对养护大机之间距离进行计算,可以准确测算其是否已处于危险情况,并及时发出声光预警信号。经过模拟实验,系统可以实现安全预警功能。

Based on the technology such as GPS locating and ZigBee wireless network, used MCS8051F040 as the controlling core, a novel collision early warning system is presented for avoiding the collision phenomena between the large-scale locomotive. It can measure the location and speed of the local locomotive and the other locomotive interior the fleet by GPS locating system and IP-Link 2220H embedded module building the peer to peer network. Though calculated the distance between the large-scale locomotive, it can forest whether the locomotive is in the dangerous condition exactly and sound the alarm immediately. Though simulation testing, this system is consequently proven for safety alarming.