Horizon monitoring in the longwall system

The subject of the application is a method for monitoring a mining machine for making rebates in a longwall mining system, wherein a mining machine for making grooves includes a combine having a first cutting head and a second cutting head, the method comprising receiving the data regarding the position of the combine during the cutting cycle . Horizon profile data contains information on at least one element from the group comprising the position and angle of the combine, the position of the first cutting head and the position of the other cutting head. The method further includes analyzing the processor location data by the processor to determine if there has been a position error during the cutting cycle based on