摘要
本文介绍了一种嵌入式无线网络节点,主要用于家用电话报警系统。当室内发生异常,如盗窃、煤气泄漏等,传感器可收集异常信息,并经无线网络节点送至报警主机,拨通公共电话网发射报警信号。本文详细阐述了无线网络节点的硬件组成、工作原理,并着重介绍了无线网络收发模块的硬件组成、软件设计、数据通信策略及主程序设计思路。
This paper introduces a kind of embedded wireless network node which could be mainly used in household telephone alarming system. Once some unusual things occur, such as burglar, leakage of natural gas, etc, sensors can collect this information which be transmitted to alarm host through wireless network node, then alarm host dials Public Switched Telephone Network （PSTN） to give off alarm signals. This paper discusses hardware structure, working principle of wireless network node, and introduces in stress hardware structure, design of software, data telecommunication tactics of receive and transmit module of wireless telecommunication, as well as of it＇ s design thinking of main program.
关键词
无线网络节点
传感器
通讯模块
Wireless network node Sensor Telecommunication module
