SYSTEM FOR DATA COLLECTION THROUGH AN ALTERNATE CURRENT SUPPLY NETWORK

摘要

The invention relates to electrical network communications engineering and can be used for automatic data acquisition from electric, heat, water and gas consumption meters etc. Said invention makes it possible to simplify the internal structural design of slave nodes and to increase the nose immunity of a system. The result is achieved by using the zero intersection time of the fundamental harmonic of a main voltage in the form of a sign synchronisation.