Control system for a center pivot irrigation

In this project, we implemented a control system composed of a Programmable Logic Controller (PLC) as shown in the figure at the left. This controller is able to command around 60 valves along with the center pivot. The controller can be configured with an irrigation matrix that allows fixing a desired percentage of irrigation depending on the position of the center pivot. The position is measured by a Global Positioning System (GPS) connected to a device that allows communicating to the controller system remotely (middle figure). Finally, a Human Interface Machine (HMI) was implemented in a device located locally at the center pivot. The HMI allows to configure the irrigation matrix manually and visualize the operation variables.