Led circuit design with IoT system for an optical sensor in product quality monitoring

Suffian, Muhamad Haziq Syahir (2023) Led circuit design with IoT system for an optical sensor in product quality monitoring. Project Report. Universiti Teknikal Malaysia Melaka, Melaka, Malaysia. (Submitted)

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Abstract

The optical sensing market is expected to witness market growth at a rate of 15.39% in the forecast period of 2021 to 2028. However, with the rapidly evolving optical sensing technology, most equipment has more sophisticated functions thus making every price of equipment in the system used become more expensive and difficult to operate. It is due to the equipment used in this field which are laser, fiber optic, modulator and lock-in amplifier which lead to higher investment in the system’s application. The idea for this project was based on existing systems used in the industry sector by applying the same application but have few additional functions in terms of system, different electronic equipment used and price cost. The main objective is to design an LED circuit with an IoT system for an optical sensor in product quality monitoring. RGB LEDs are expected to be the light source in this application. It will be directed directly to the photodetector and will display the data received from the readings of each different light color source. Different color and thickness of transparent PVC sheet will be used as a product. Finally, all the collected data will be sent to the user's email using the IoT technology then doing research and analysis of each performance reading of all different types of transparent sheet with RGB light will be analyzed in terms of sensitivity, linearity and resolution.

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