FIELD: mining.
SUBSTANCE: invention relates to the mining industry and is intended for monitoring movements of sections of the shield support in the working face of the mine. The system has a central control unit (CCU) and a number of peripheral control units (PCU), each of them being located beside the appropriate section and conjugated functionally with the same. PCU of sections are connected with CCU and interconnected by two electric buses so that each PCU can be activated from CCU or from an adjacent PCU for input of a control command. PCU of each section is programmed so as to transmit control commands received through the electric bus provided with a code word assigned to PCU to be activated. Besides PCU of each section has a switch, which enables to disconnect electric buses. By means of the second similar electric bus (the parallel bus) the input signal not provided with the code word assigned to PCU to be activated can be transmitted to PCU of the adjacent section.
EFFECT: safe, trouble-free and reliable operation of the winning machine and the powered support with insignificant expenses for maintenance.
3 cl, 3 dwg
