CAJ | 학술논문

研究了一套用于调节温室大棚光照强度的自动控制系统。以MSP430作为主要控制器件，设计的I/V转化电路可将硅光电池输出的微弱电流信号转化为电压信号；采用两个S1087组成差分放大电路，以有效抑制温度漂移；通过NRF905 SE红外无线传输模块，可以准确地将现场测量数据发送给监测中心，并接收来自监测中心的控制命令。试验结果表明，项目设计的控制系统运行稳定，抑制温度漂移能力好，光照强度测量精度高、量程大，能够准确地远程传送数据，从而实现远程在线控制，具有较高的应用价值。
연구료일투용우조절온실대붕광조강도적자동공제계통。이MSP430작위주요공제기건，설계적I/V전화전로가장규광전지수출적미약전류신호전화위전압신호；채용량개S1087조성차분방대전로，이유효억제온도표이；통과NRF905 SE홍외무선전수모괴，가이준학지장현장측량수거발송급감측중심，병접수래자감측중심적공제명령。시험결과표명，항목설계적공제계통운행은정，억제온도표이능력호，광조강도측량정도고、량정대，능구준학지원정전송수거，종이실현원정재선공제，구유교고적응용개치。
An automatic light-intensity control system for greenhouses was proposed in the present study .The sys-tem adopted MSP430 as main control device .The designed I/V conversion circuit could convert the weak current sig-nal outputted from silicon photocell to voltage signal .The differential amplifier circuit using two S 1087 could effec-tively suppress temperature drift .Besides , the proposed system was able to send the measurement data to and receive commands from the monitoring center accurately via NRF 905SE infrared wireless transmission module .After test, it was shown that the proposed control system could work stably .It was effective in suppressing temperature drift and thus possessed high precision within a large range of light -intensity.Also, the system could accurately transmit re-mote data, and therefore realize on-line remote control.