摘要
为了提高铁路道口安全监测系统的数据传输距离,采用GSM短信息技术,嵌入式技术、传感器技术,构建基于GSM短信息的道口安全自动监测系统,并用红绿灯提示过往行人和车辆注意安全。详细分析了如何用专用车轮传感器、51单片机、GSM模块、以及基于GSM的AT指令程序构成系统。文中对PDU数据格式的AT指令程序的设计做了详细介绍,在电源管理、噪声抑制、系统联网、短信堵塞等方面也进行了研究。实验证明该方法是可行的。
In order to improve the data transmission distance for the railway crossing monitoring system, the GSM short information technology, embedded technology and sensor technology are adopted. The traffic light is adopted to clew the passenger and vehicle to avoid danger. The article analyzes how to make up of the system by the wheel sensor, singlechip, mobile telephone, and the program bases GSM-SMS-AT. The article introduces the program of AT instruction in PDU format detailed. The power management, noise restraining, system network and short information jam-up are researched. The experiment proves the method is viable.
出处
《国外电子测量技术》
2008年第6期26-28,共3页
Foreign Electronic Measurement Technology
