基于nRF905无线模块的温度采集系统设计  

Design of temperature acquisition system based on wireless module nRF905

作　　者：戴丽佼[1] 刘焘[1] 

机构地区：[1]南京航空航天大学金城学院实验中心,江苏南京211156

出　　处：《现代电子技术》2015年第3期20-22,共3页Modern Electronics Technique

摘　　要：针对传统测温系统的布线复杂、维修困难等问题,设计了一种无线温度采集系统。该系统由主节点和从节点两部分组成,选择STC89C52单片机为控制器。各从节点利用数字温度计DS18B20实时采集温度数据,采用n RF905实现数据的无线收发。主节点系统循环接收各节点温度数据并将结果实时显示在液晶屏上。实际测试结果表明,在空旷地带通信距离约为200 m,测温误差为0.5℃。A wireless temperature acquisition system was designed to deal with complex wiring and difficult maintenance of the traditional temperature measurement system. The system is composed of major node and slave nodes. The single chip microprocessor STC89C52 is selected as controller of the system. The realtime acquisition of temperature data is conducted by slave nodes through digital thermometer DS18B20. The realtime data is transmitted through the wireless module nRF905. The major node receives temperature data cyclically from slave nodes. The temperature data is displayed on the liquid crystal display. The practical testing result indicates that the system′s communication distance is about 200 m in the open place and its precision is 0.5 ℃.

关 键 词：NRF905 DS18B20 无线模块 温度采集系统 

分 类 号：TN925-34[电子电信—通信与信息系统] TP368[电子电信—信息与通信工程]