METHOD OF TRANSMITTING DATA BETWEEN MEASURING TRANSDUCER AND CONTROL DEVICE AND COMMUNICATION LINE FOR REALISING SAID METHOD Russian patent published in 2012 - IPC B66C23/88 B66C13/18 B66C15/00 G01P21/00 G01L25/00 

FIELD: physics, communications.

SUBSTANCE: invention relates to electrical communication engineering and can be used in systems for monitoring, controlling and protecting hoisting machines. The method of transmitting data between a measuring transducer and a control device involves converting measurement signals to electric signals and transmitting them over galvanically isolated communication lines. The galvanic decoupler used is two spaced-apart transmit-receive modules connected through wire lines to the measuring transducer and a control device, and connected to each other by a radio channel. Before transmitting data, the address of the modules is determined, the allowable measurement error is set and the actual measurement error is determined, and the mismatch between the two errors is determined. The wire line code is converted to a wireless line code. Data are converted to radio emission of the module antenna, with conversion frequency of signals with a serial code to radio emission which depends on the mismatch between the actual and the allowable measurement error. When receiving data, reverse conversion of data to electric signals is performed and said signals are transmitted over a wire line to the control device. The communication line between the measuring transducer has two galvanically isolated wire lines, including a double-wire communication line and a double-wire power line. The galvanic isolation is based on transmit-receive modules having a transceiver with an antenna and a microcontroller for storing module addresses, and selection of signal conversion frequency and data generation.

EFFECT: high reliability of data transmission and reduced power consumption of the communication line and measuring transducers.

7 cl, 3 dwg