Development of Environmental Control System within a Greenhouse for Households
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Abstract
The objective of this research was to design and test the operability of air, temperature, and humidity control system and water and fertilizer control system for the soil within a curved roof greenhouse that was 1.5 m wide, 2 m long, 2.6 m high by using the principle of negative pressure system together with automatic water spraying. There was an Arduino board that controlled the operation of temperature sensors, air humidity sensors, soil moisture sensors and fertilizer concentration sensors inside the greenhouse. The system could be controlled both imminently at the control cabinet next to the greenhouse and remotely via an application on a smartphone. It was found that all the environmental control systems in the greenhouse were able to operate according to the user's settings. The temperature control system had the
highest use of electricity and water at 40 %, the soil fertilization control system at 34 %, the soil irrigation control system at 20 %, and the air humidity control system at 6 %. Moreover, the temperature control system could reduce the temperature inside the greenhouse by up to 5 oC.
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