AUTOMATION OF GREENHOUSES

Abstract

Greenhouse is a kind of place which can change plant growth environment, create the best conditions for plant growth, and avoid influence on plant growth due to outside changing seasons and severe weather. In green houses there are a lot of parameters such as temperature, humidity, etc. and it is so hard to monitor all of these parameters by human .And any significant changes in one climate parameter could have an adverse effect on another climate parameter as well as the development process of the plants. Therefore, continuous monitoring and control of these climate factors will allow for maximum crop yield, improve quality, regulate the growth period and improve the economic efficiency. The main objectives of this project is to control the temperature, light, and irrigation system inside the greenhouse to provide an appropriate growing environment to plants. The environmental factors inside the greenhouse are studied, and appropriate circuit to control those factors is designed and implemented using suitable components. To control these environmental factors suitable sensors are used such as temperature sensor (LM35), humidity sensor (YL-38) and light sensor (LDR). Sensors input a certain voltage according to the measured factor, after that the Arduino control unit compares between the measured value and the reference one and switches on the appropriate actuator