CAJ | 학술논문

采用nRF905无线收发模块、DS18B20温度传感器，以AT89S52单片机为主控核心，设计了一种无线温度检测系统，采集到的温度数据通过电平转换芯片MAX232传到PC机。经测试表明：在同等条件下，系统误码率大小与传输距离有关，最大有效传输半径可达200 m；系统的温度测量范围为20～80℃，误差小于±0．2℃，满足预期要求。
채용nRF905무선수발모괴、DS18B20온도전감기，이AT89S52단편궤위주공핵심，설계료일충무선온도검측계통，채집도적온도수거통과전평전환심편MAX232전도PC궤。경측시표명：재동등조건하，계통오마솔대소여전수거리유관，최대유효전수반경가체200 m；계통적온도측량범위위20～80℃，오차소우±0．2℃，만족예기요구。
Using the DS18B20 temperature sensor , AT89S52 single chip microcomputer as control core, nRF905 as the wireless transceiver module , design a high precision wireless temperature detection system.Temperature data collected by the level conversion chip MAX 232 to PC.The experimental results showed that under the same conditions , the size of the bit error rate and transmission distance of the sys-tem is related.The maximum effective transmission radius is 200 m.Temperature measurement range is 20~80 ℃.The error is less than ±0 .2 ℃.