COGS Thesis and Dissertations

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COGS Thesis and Dissertations

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Browsing COGS Thesis and Dissertations by Author "Al Sayed Noor Mohamed A Jassem"

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    Development of wireless data acquisiton system using LoRa technology for construction of PID control system
    (2025-03-05)
    Al Sayed Noor Mohamed A Jassem
    One essential modern applied achievement is integrating Operational Technology (OT) and Informational Technology (IT). The two technologies are harmonized to obtain available and easy-to-access systems away from complex, limited, and monopolistic protocols. In this work, the integration of OT and IT technologies using a sort of Internet of Things (IoT) protocol (Long Range (LoRa)) to create accessible and flexible systems is of utmost importance. OT and IT are combined to move away from complex, limited, and monopolistic protocols. One of the critical problems in the automation systems is the wiring system, which represents a significant challenge in the installation, maintenance, and scalability. Meanwhile, the wiring system requires more devices for the matter of extension. Furthermore, there is the possibility that the operation will be interrupted due to any wiring failure. In this study, several objectives are targeted. The evelopment of a wireless data acquisition system was targeted to eliminate the impact of wiring systems on automation processes, in addition to constructing a control system using an algorithmic Proportional-Integral-Derivative PID system to study and compare the performance of wireless PID according to the conventional control system. The wireless data acquisition system allows for converting physical quantity sensor signals and their reflection to appropriate actuators using a process control algorithm within the IoT environment. Since OT relies on closed protocols, wireless data transmission is crucial for quality transmission and cost reduction in wiring. One of these benefits is the use of open–source systems, and the Arduino family, supervised by the LoRa protocol, was selected for this project. In this dissertation, the data acquisition system was implemented using the Internet of Things techniques in favor of essential work done by the traditional controller (PID). The LoRa technique was utilized to bring the field data because of the ability to maintain the data features and the flexibility and simplicity that is so close to traditional systems, resulting in wiring and previous protocols. The methodology for achieving the designed system was constructed of three main steps. The first step is to bring field data and apply the required signal processing for suitable signal conditioning. The second step is applying the communication media to transmit and receive the signals. The third is preparing the PID control system to eliminate the time delay because of the signal processing electronic circuits and communication system and the handling of the process disturbances accordingly. The findings were classified into three sets of classes; the first is a calculation of time delay occurring through the system components operation, and the second is the drawing of controller responses for the wireless PID system and comparing them according to the conventional controller performance. Through the obtained findings, the critical conclusion was that the wireless system performance is close to the performance of traditional controllers because of the high speed that LoRa works with through the operation of signal transmitting. The time delay of the microcontroller used in the test bed can be compensated with another high-speed microcontroller, such as Raspberry Pi or an equivalent.
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