M. Taufik, A.E. Rakhmania, Y.N. Afnani
Indonesian population has grown rapidly, as shown in Central Statistics Agency report that in 2018, Indonesia's population reached 265 million. Along with the increasing number of populations, water for daily needs is in high demand. A good monitoring and water management is needed to oversee the water usage efficiently. Currently, local water company still implements post-paid payment system that is time and human resources inefficient. In this study, we proposed the implementation of internet of things (IoT) in designing prepaid water meter card for real time water usage monitoring. The card could also be used to directly purchase water quota online via website. The proposed water meter used air vent valve system combined with the water flow sensor to measure the amount of user's water usage. Result shows that the proposed system could work properly with the error value of 2.84% measured from the difference between water flows read in conventional water meter with the measured value in our proposed water meter. The purchased quota will be directly deducted based on the amount of measured water usage. The process was done in real time environment and the data will be automatically stored in server. When user is running out of quota, solenoid valve embedded in the proposed water meter system will be automatically closed such that user have no access to water source. © Published under licence by IOP Publishing Ltd.
Department of Electrical Engineering, State Polytechnic of Malang, Sukarno Hatta Street No. 9 Malang, East Java, 65141, Indonesia