Abstract

A system for controlling electrical appliances using power line communication and monitoring data. Control messages are sent over Wi-Fi network from Wi-Fi device to personal computer which then couples the message to power line using micro controller with serial port interface. Power lines which are present in all infrastructures are used as physical media to transmit data over 220/50Hz signal to control electrical appliances and to monitor. Here we are monitoring temperature. The data from the micro controller is coupled onto power line using power line communication modem and DSSS( direct sequence spread spectrum ) modulation technique is employed to transmit data. The receiver unit consists of PLC modem, micro controller and can be connected in any power line network. The receiver unit controls the flow of electricity to the socket.

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