现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2015年
3期
20-22
,共3页
nRF905%DS18B20%无线模块%温度采集系统
nRF905%DS18B20%無線模塊%溫度採集繫統
nRF905%DS18B20%무선모괴%온도채집계통
nRF905%DS18B20%wireless module%temperature acquisition system
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nRF905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℃。
針對傳統測溫繫統的佈線複雜、維脩睏難等問題，設計瞭一種無線溫度採集繫統。該繫統由主節點和從節點兩部分組成，選擇STC89C52單片機為控製器。各從節點利用數字溫度計DS18B20實時採集溫度數據，採用nRF905實現數據的無線收髮。主節點繫統循環接收各節點溫度數據併將結果實時顯示在液晶屏上。實際測試結果錶明，在空曠地帶通信距離約為200 m，測溫誤差為0.5℃。
침대전통측온계통적포선복잡、유수곤난등문제，설계료일충무선온도채집계통。해계통유주절점화종절점량부분조성，선택STC89C52단편궤위공제기。각종절점이용수자온도계DS18B20실시채집온도수거，채용nRF905실현수거적무선수발。주절점계통순배접수각절점온도수거병장결과실시현시재액정병상。실제측시결과표명，재공광지대통신거리약위200 m，측온오차위0.5℃。
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 micro?processor STC89C52 is selected as controller of the system. The real?time acquisition of temperature data is conducted by slave nodes through digital thermometer DS18B20. The real?time 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 ℃.
