Device for central reading and registration of customers' power consumption

摘要: A device is disclosed for central and automatic reading, registration control of energy consumption meters located at consumer locations. The communiction between producer made through codified signals, which by way a modem are superposed on the line voltage power distribution network. Thus charge per unit consumed can be easily changed from one time to another. change therefore always effectively related cost production energy, thus more equitable charging system created, promotes saving energy.