GPS与433M无线通信技术在养路机械防碰撞领域中的研究

Research on Applying GPS Technique and 433M Wireless Communication Technique to the Anti-collision of Railway Maintenance Machines

为防止铁路养路机械大机群碰撞,基于嵌入式系统、GPS定位技术和无线数据传输技术构建了一个铁路养路机械防碰撞系统。对GPS定位技术的特性进行研究,分别设计了晴天、阴天和雨天下开阔地界(操场上)和有遮挡物(树荫下)不同环境组合下的定位精度评估实验;同时对433M无线数传模块的传输特性进行研究,论证了将GPS定位技术与433M无线数传技术应用在铁路养路机械群防碰撞系统中的可行性。

In order to prevent the railway maintenance machineries from collision,we build a anti collision system based on the embedded system,GPS positioning technique and 433 M wireless communication technique.To study properties of the GPS positioning technique which is influenced by the environment.We carried out a serial of experiments using different environment combinations( sunny,cloudy and rainy day with tree shelter or no shelter),433 M wireless communication technique's properties are studied,all show that the technologies can be applied to the system.