Internet of Things (IoT)-Driven on Evaporative Cooling System for Tropical Greenhouse Environmental Control

Abstract

Abstract The impact of climate change on tropical agriculture can be mitigated by using controlled environmental conditions in tropical greenhouse buildings with evaporative cooling. Precision agriculture can be applied by adopting technology based on the Internet of Things (IoT) with easy access and real-time monitoring. A study has been conducted to design and manufacture an IoT-based evaporative cooling control system for cultivating horticultural crops in tropical greenhouses. The system consists of an environmental monitoring node and an air cooler actuator control node. Data temperature, relative humidity, and the response of the control actuator can be monitored in real-time via a cloud server. The study also discusses Vapor Pressure Deficit (VPD) as an important factor that needs to be considered in controlling greenhouse environmental conditions. The study used a linear regression test, validation test, analysis of VPD, calculation of the accuracy of the evaporative cooler, as well as evaluation of packet loss.