Web-based real time monitoring of electrical quantities measurement

摘要

This study aims to build an applications, that can monitor the value of electrical quantities in a real-time using web technology at H Building of Engineering Faculty, University of Lampung (Unila). The whole system consists of several hardware and software components. Some hardware components such as current sensors, voltage sensors, signal conditioning circuit, embedded computer Arduino Uno, and Ethernet Shield. The programming language used for data acquisition was C language. The web-based applications produced the electrical quantities data measurement, appears in the form of text and graphical format that can be access anytime and anywhere. Some of web development tools used in this web development those are HTML, CSS, JS, JSON, and PHP programming languages. The results of monitoring data shown, the amount of electricity at distribution panels at this building was not balanced. It happens due the electrical load was unbalanced on each phase, other fact found that the trend of electricity usage still follows the trend of working hours.