Remotely Accessible Single Phase Energy Measuring System

This paper presents a model developed in order to measure the electricity consumption of the domestic electricity users. The model has a special capability of transmitting the measured values to a central database via power line or a ISM band wire-less channel. Two modules were developed for power line communication and wireless communication where users can select the channel on their choice. The central location and all the energy meters in the network were connected in bus topology. Each energy meter was given a unique identification number by which the central data acquisition server identified each of it. A communication protocol was developed in such a way that it would communicate one meter at a time. Time division multiplexing was used to eliminate the collisions and to obtain a reliable transmission. A microcontroller functions as the main processing element of this product. It was programmed in such a way that it would measure energy and transmit the measured values through a specified channel. The designed meter was not only capable of measuring electricity, but also capable of monitoring parameters like voltage, current and power factor. As a final product a comprehensive system was devised to read each energy meter in the network and store the values in a database