The sensor network using DC power line communication bus

This work proposes a sensor network using the power line communication (PLC) technique in master-slave sensor/control network applications especially using in DC power systems. In the accustomed microcontroller-based master-slave sensor/control network are designed by the serial communication topology and communicates with a controller and coupled the signals with modems in the both ends used the transmission port, nevertheless, coupling modulated digital data signals through modulation circuits to the power line is a challenging task in noising cancelation. Therefore, the time division multiplexing (TDM) technique to separate the timing into two phases, Powering Phase and Communication Phase, on the DC power line was proposed in this work. This method can easily resolve the complexity and the noise effect of the master-slave sensor/control network.