基于无线射频和GPRS网络的林火监测数据采集电路设计

Design of Data Acquisition Circuit for Forest Fire Monitoring Based on Wireless RF and GPRS

本监测系统利用无线射频与GPRS网络相结合的方式,监测终端将温度传感器与烟雾浓度传感器采集到的数据通过无线射频发送到基站,再通过基站的GPRS网络将数据发送到监控中心,来实现对林火的实时监测。通过监控中心对整个网络的控制,可以实时监测森林的状况。本监测系统结合无线射频和GPRS网络的优势,无线射频使监测终端更加方便安装,GPRS网络可以实现远程监控管理。本监测系统可以通过短信、服务器、定时和报警触发方式启动,可以实时采集现场数据。本设计的硬件电路以LPC767芯片为核心,采用RF200无线射频芯片和MC55模块进行了各种外围电路设计,采取了低功耗与抗干扰措施。制作出了电路板,并且完成了部分功能的测试。

The present monitoring system uses a combination of radio frequency and GPRS network. The data collected by temperature sensor and smoke monitoring sensor are sent to the base station via Wireless radio frequency, and then the base station sends the data to the monitoring center through GPRS network to monitor the forest fire in real-time. The forest conditions can be real-time monitored through the control of the whole network by the monitoring center. The wireless monitoring system combines the advantages of RF and GPRS networks, the former of which makes an easier installation of monitoring terminal and the latter can achieve remote monitoring and management. The monitoring system can be started by SMS, server, timing and alarm triggers and can collect real-time data. The hardware circuit uses LPC767 chip as the core and RF200 wireless radio frequency chips and MC55 module as peripheral circuit. The low power consumption and anti-interference measures are also used. Then the circuit board is fabricated and some of the functions are tested.