DESIGN AND IMPLEMENTATION OF USER VERIFICATION AND WATER CONTROL SYSTEM ON IOT BASED SMART WATER SINK FOR WATER USAGE MONITORING IN ITB CAMPUS PUBLIC TOILETS

• Main Author: Rifqi Ariq Prabaswara, Muhammad
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/53615
• Institution: Institut Teknologi Bandung

The problem of water wastage is a classic problem that exists in modern society today. Easy access to clean water often causes people to forget that the use of clean water needs to be done responsibly and as efficiently as possible. We also encounter this problem in the ITB campus area. Based on a survey that we have conducted on public toilets in several buildings on the ITB campus, we have encountered problems with excessive water use and frequently encountered unattended open taps. Where this is a form of waste of clean water in the ITB campus environment. Based on this, we designed a "Water Use Monitoring System for Public Toilets in ITB Campus based on the Internet of Things". This system is divided into three major subsystems, namely the Payment System, the Smart Water Sink System, and the User Interface System. In the development of this monitoring system, the authors take part in the work of the verification and water flow control subsystems of the Smart Water Sink System, which its design and implementation will be discussed in this paper. The test results on this system have successfully met specifications such as working with a DC voltage input of 12V, being able to detect up to 3.5 cm in front of the hand sensor, being able to read user verification input correctly and consistently, having a processing speed of reading verification input <5 seconds, being able to limit tap usage per session for 15 seconds, able to detect ticket usage limits, able to communicate data with the server, able to measure water usage with an accuracy below 10%, and has an indicator light as a user interface.