Monitoring and Control of greenhouse Environment

Abstract

Greenhouse environment, used to grow plants under controlled climatic conditions for efficient production. Appropriate environmental conditions are necessary for optimum plant growth, improve crop yields, and efficient use of water and other resources. Automating the data acquisition process of the soil conditions and various climatic parameters that govern plant growth allows information to be collected at high frequency with less labor requirements. In this project is designed a simple, easy to install, microcontroller-based circuit to monitor and record the values of temperature, humidity, soil moisture and sunlight. The natural environment is variable according to different reason such as seasons, controlling these parameters to achieve maximum plant growth and yield. The system various sensor modules in real-time in order to control the temperature, light, soil moisture and humidity inside a greenhouse by actuating a cooler, heater, lamps, water pump and spray pump respectively according to the necessary condition of the crops. The system composes of sensors, microcontroller, relays and LCD. The sensors sense the change and the microcontroller reads this from the data at its input ports after being converted to a digital form by the ADC. The microcontroller then performs the needs actions by employing relays until the parameter has been brought back to its optimum level and also employs an LCD display for continuously alerting the user about the condition inside the greenhouse. The design is quite flexible so it the plant parameters can be changed easily. This makes the proposed system economical, portable, maintainable and perfect for greenhouse applications.