LoRa based Real Time Level Control System for Non-Linear Spherical Tank System

Managing the liquid level of a spherical tank can be a challenging task due to the unevenness of its surface, which varies with the tank's height. Keeping the liquid level within the optimal range is crucial for maintaining optimal operation and ensuring high product quality. Due to the PID controller's simplicity, reliability, and precision in industrial feedback control loops, it cannot be used to operate complicated systems for best performance. Using PLC and, the level control system for spherical tanks is implemented in real time. Using the approach of process reaction curves, models of the various areas' responses are simulated. In simulation, the PID controller-based level control system settles on 1400 ms, 2950 ms, and 7725 ms for region-1, region-2, and region-3, respectively. Using the web application ubidots, LoRa and PLC controller experiments are conducted in real-time. The tank level control set point is transmitted via the web tool, and the PLC executes the control operation. The level control faceplate is used to monitor the different areas' level control systems.