| 摘要 |
Method for operating a mining machine for coal mining in the underground coal face of a coal mine. The plurality of timbering and walling units (1-18) in longwall face length as well as the cutting machine (21), which can be moved along the coal impact, are automatically or semi-automatically controlled so that the setpoint cross section is determined as drive-through model (38) of the required transit cross-section, which the mining machine requires, for each face cross section along the route of the mining machine and stored in the memory of the face control device. The actual passage cross section is determined in each face cross-section and, including the reference points of the measurement, is superimposed in the face control device to the stored drive-through model. The face control device transmits a signal, which is processable in the sense of the movement clearance, to the operating control of the mining machine as a function thereof that the stored drive-through model fits into the determined actual cross-section without excess at the reference points of the measurement. In addition, condition variables are determined which are not taken into account in the drive-through model. The drive-through model is defined by the contour (contour model) which circumscribes the required passage cross-section as a contour or as a surface. Electronic cameras (36) can serve to detect the actual image data, which are suspended in certain intervals along the face. |
