Importance

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Abstract

In a control system for the longwall support with a plurality of hydraulically actuated supports (mining shields), which are each automatically rearranged in the sense of robbing, advancing, and setting as a function of the position of the mining machine (coal cutter or plow), the position of the mining machine is automatically signaled to the mining shield control system. To this end, the mining machine is equipped with a position signaler. A microprocessor (31), which receives the signals of the position signaler, converts the signals into position signals and/or signals of the direction of movement. A radio set (32) transmits the position signals and/or signals of the direction of movement to radio receivers (33), which are distributed over the mining section and connected to the mining shield control system (34) for converting the position signals and/or signals of the direction of movement into signals for rearranging the mining shields (longwall support devices 1-18).

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First Claim