Device for Data Communication along Power Lines

Abstract

The paper is concerned with the features of the PLC-technology and describes the common circuit solutions of data communication devices along power lines. The research group proposes an original type of a data communication device based on making use of new physical phenomena, which have never been applied in the PLC-technology before. An inverted magnetoelectric effect in multidimensional composition material is used to transmit a signal; this effect is a combination of the piezomagnetic and the piezoelectric effects connected by elastic interactions. The proposed data communication device does not have either a transformer or a galvanic coupling between the power high-voltage line and the low-voltage information lines, thus eliminating the influence of the high operating voltage of the power line on the low-voltage lines of high-frequency equipment. The proposed variant of the data communication device can be easily incorporated into standard high-frequency equipment, thus providing higher quality level of its operation. The developed data communication device was tested by experiment as part of an experimental security and fire alarm system.