An Intelligent Control System for an Urban Greenhouse

This paper presents the design, build, integration, and implementation of a control system for an urban greenhouse. A next generation programmable logic controller (PLCnext technology) is used to realize the control system application. PLCnext based controller interactions with sensor network and electromechanical systems are documented. The sensor network includes temperature, humidity, moisture, and light sensors. The electromechanical system includes heaters, fans, motors, solenoids, lights, and other required electrical components. Printed circuit boards (PCBs) for the sensor network and control system interface are custom designed. System integration, laboratory testing, and on-site implementation results are included in this paper.