Abstract
The design of a wireless water level control system is introduced and discussed in detail. In this system, the wireless Proportional Integral (PI) controller is developed using the LabVIEW graphical user programming language. Zigbee wireless technology is chosen for the wireless data transfer system. The experimental testbed was built and the system software and hardware were implemented. In order to compare the performance of the wired and wireless system, a corresponding wired water level control system was built. Experimental results show that under the same PI parameters, the settling time of the wired system is 3.3 times faster than the wireless system. However, the percent overshoot using the wireless controller is 4% smaller.
Highlights
Control systems rely on physical connections to interconnect all the components within the system, such as sensors and actuators
Some of the anticipated benefits of an eventual wireless implementation include: (1) reduction of costs, since the need for long wires will be eliminated; (2) provision of control system redundancy, since the wireless system could act as a backup in the event of a loss of primary system control; and (3) simplification of maintenance, since maintenance will be localized to a few wireless nodes versus hundreds of feet of cables
Six experiments were run with two sets of different Proportional Integral (PI) parameters for both the wired and wireless systems
Summary
Control systems rely on physical connections (wires and cables) to interconnect all the components within the system, such as sensors and actuators. The objective of this research is to design and implement a wired and a wireless networked water level control system, so that the performance of these two systems can be compared. These implementations are carried out in a laboratory environment. The purpose is to show that wireless technology could produce suitable, sustainable and comparable results with the control algorithm implemented
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