基于STC89C52的温室温度和光照测控系统设计

Design of Measurement and Control system for Temperature and Illumination of Greenhouse Based on STC89C52

针对温室的特点设计开发了温室温度和光照度测控系统。该系统以单片机STC89C52为微控制器,选用DS18B20温度传感器对温室温度进行采集,选用TSL2516光强传感器,通过光电耦合器和继电器控制加热器和光源,从而控制温室温度和光照度,实现了温室中温度、光照度自动控制与报警系统,同时通过串行总线将温度和光强数据经过微控制器送上位机进行数据分析。该系统解决了人工控制温室温度和光照度误差大,且费时费力、效率低等问题,促进了农作物的生长,从而提高温室大棚的产量,带来很好的经济和社会效益,具有推广价值。

According to the characteristics of greenhouse,a temperature and illumination measurement and control system is designed,with the micro-controller STC89C52 as microcontroller,DS18B20 temperature sensor for the collection of greenhouse temperature and TSL2516 as the luminous intensity sensor,the system controls the greenhouse temperature and illumination through optocoupler,heater relay control and light source so as to achieve the automatic control and alarm of temperature and illumination in the greenhouse,and meanwhile sends the temperature and light intensity data to the upper computer for data analysis via the microcontroller through serial bus.The system gets rid of errors,time and labor consuming as well as the low efficiency of artificial temperature and light control,and promotes the growth of agricultural crops,so as to improve the yield of greenhouse and bring great economic and social benefits.Therefore the system has popularization value.