Enhanced Real-Time Fuzzy PID Controlled WNCS Over TCP/UDP Protocol

Enhanced Real-Time Fuzzy PID Controlled WNCS Over TCP/UDP Protocol

연구 분야: Networking

학회: 2023 3rd International Scientific Conference of Engineering Sciences (ISCES)

Real-Time wireless networked control systems (WNCS) are commonly used in various applications, including wheelchairs. However, these systems often suffer from a delay issue caused by the randomly generated delay accompanying the network, which can make the system response sluggish and unstable in some cases. This delay issue is a significant problem that needs to be addressed because it affects the system's performance and reliability. Therefore, this paper proposes a solution to the delay issue by utilizing a Fuzzy Proportional-Integral-Derivative (PID) controller to control a high-torque Real-Time Direct Current motor, commonly used in wheelchairs while also checking for wireless network connectivity. To transfer the data from Arduino Microcontroller to MATLAB, Transmission Control Protocol/Internet Protocol (TCP/IP) or User Datagram Protocol (UDP) with Node MCU will be used since MATLAB Truetime, which will be used to simulate Wireless Network, does not work with Direct Serial Communication. The simulation results show that the proposed system can efficiently control the Real-Time DC motor in real-time with the best settling time of 0.5371 for 0.01 sec sampling time and 0.5371-sec settling time with 0.001 sampling time. The proposed solution addresses a significant problem in WNCS and can contribute to developing more reliable and efficient Real-Time wireless networked control systems.