METHOD OF INTERFACING DEVICES FOR TRANSMITTING-RECEIVING INFORMATION OVER COMBINED TWO-WIRE COMMUNICATION LINE AND DC POWER SUPPLY AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2024 - IPC H04B3/56 G08C19/04 

FIELD: communication technique.

SUBSTANCE: invention relates to equipment for remote information exchange with sensors of physical parameters in information-measuring systems via combined two-wire communication line and DC power supply. Method of interfacing devices for transmitting and receiving information via a combined two-wire communication line and DC power supply consists in the fact that transmission and reception of digital information is based on a discrete two-level change by the transmitter of the value of current flowing in a current loop and measurement of the current value by the receiver. Current loop is formed by power supply (3) of the data collection device, adjustable resistors (4), current sensors (5) and physical parameter sensor (6). Two-level change in the current value in the current loop by the transmitter is carried out by changing the resistance of the current loop, and in the receiver, the current level is determined by the current sensor and the received digital information is identified. Device for receiving and transmitting information over a combined two-wire communication line and DC power supply also includes device controllers (7).

EFFECT: high reliability of transmitting information.

2 cl, 1 dwg