自动浇花系统设计

苏州科技大学本科生毕业设计（论文）Automatic flower pouring technology systemAbstractThe automatic spray technology system of this design mainly includes two parts:detection system and control system.The detection part includes soil temperature andhumidity detection and light intensity detection,and the control part includes liquidcrystal display,sound and light alarm and valve control.Light sensor usingphotosensitive resistance to detect light intensity,soil temperature and humiditydetection and display with DHT11 temperature and humidity sensor,the detection tothe analog signal by A/D converter internal sampling,keep,quantization and codingprocess can be quickly converted to digital signals into STC89C52 single-chipmicrocomputer,the above signal by single chip microcomputer output to the LCDscreen display.Automatic watering the flowers in the setting of first according to thelight and temperature determine the suitability of watering the flowers,and second,bythe humidity sensor detects humidity value set humidity value compare with us,if islower than the set value,the lights ablaze,small horn alarm,single-chipmicrocomputer outputs a control signal relay valve is opened,the water started.According to the difference between the set value and the detection value,theduration of watering can be controlled.The larger the difference value,the longer thewatering time will be,and vice versa.Key words STC89C52 single-chip microcomputer;temperature and humiditysensor;photosensitive resistor;relay