The diploma thesis presents a restroom occupancy detection system designed for businesses that face high restroom occupancy and restricted space, prompting them to establish an internal system for monitoring restroom occupancy.
The thesis describes how the complete system works, which is built on ESP32 microcontrollers linked to a self-created Wi-Fi network. It details the hardware and software employed and provides an overview of the project's development structure, from basic research to construction planning. The operation of sensors (TF-Luna, ld2410, AJ-SR04M) is described in depth, as are the detecting methods (LiDAR, RADAR, ultrasonic). A mutual detection quality comparison is shown.
The thesis goes into great detail about how the software code works. It describes the building of the semaphore housing as well as the design and manufacture of printed circuit boards. This is followed by a demonstration of the circuits being installed in the semaphore housing, the final placement of the components in offices, and full system testing.
The thesis concludes by summarizing the user experience with the system as well as proposed future improvements.
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