Design of Agricultural Greenhouse Environmental Control System
Agricultural greenhouses realize accurate measurement and control of the growth environment parameters of crops during the planting process,thereby achieving the purpose of improving the growth environment of crops.This can not only avoid losses to crops caused by natural disasters,but also increase crop yields.Therefore,a simple agricultural greenhouse environmental control system was designed.The temperature and humidity sensor DHT11 was used to detect the temperature and humidity inside the greenhouse,the light sensor BH1750 was used to detect the light intensity,and the data detected by the sensor was transmitted to the single-chip microcomputer STC89 C52 RC.If the measured value is not within the set range,the system will start the corresponding execution module to automatically adjust,and at the same time,the current temperature,humidity values and light intensity will be displayed on the LCD screen LCD1602,thereby ensuring that the crops can grow in a relatively stable environment.After testing,the system can basically realize automatic control of the agricultural greenhouse environment,and has high measurement accuracy,stable performance,and certain transferability.