分布式无线空气质量监测系统  

Distributed Wireless Monitoring System for Air Quality

作　　者：卢超[1] 

机构地区：[1]陕西理工学院物电学院,陕西汉中723000

出　　处：《自动化仪表》2014年第4期57-60,63,共5页Process Automation Instrumentation

基　　金：陕西省教育厅专项科研基金资助项目(编号:2013JK1060)

摘　　要：以STC89C51为核心控制器,设计了一种分布式无线空气质量监测系统。系统由一个主机和多个从机组成;采用TGS2600空气质量传感器,传感器采集的模拟信号通过12位A/D转换为数字信号;从机将数字信号处理后通过无线模块nRF905发送给主机;主机通过循环寻址的方式分别与各从机建立无线通信,并通过微处理器处理后在液晶屏上显示。该系统可将从机放置在各个不同的测量点,主机也可以随时移动,实时测量。试验表明,系统灵敏度高、性能稳定、便携性好,可在多种场合下使用。With STC89C51 as the core controller, the distributed wireless monitoring system for air quality has been designed. The system is composed of one host computer and multiple slave computers. TGS 2600 air quality sensor is used in the system; the analogue signals collected by the sensor are converted into digital signals via 12-bit A/D converter, then the digital signals are processed in slave computer and sent to host computer through wireless module nRF905. Wireless communication among host computer and each slave computer is established by host computer through circular addressing mode, and the data are displayed on LCD after being processing. The slave computers of the system can be placed at different measuring points, the host computer may also be moved at any time for real time measurement. The test indicates that the system features high sensitivity, stable performance, good portability, and can be used in many occasions.

关 键 词：空气质量 监测系统 微处理器 A D转换器 数据采集与处理 灵敏度 

分 类 号：TH865[机械工程—仪器科学与技术]