Abstract: A system and method for increasing the operational safety of mobile machines in mining operations by utilizing RFID technology includes a transmitting unit at the mobile machine, a receiving unit, and a non-machine-related RFID transponder which can be activated by the transmitting unit and in the case of activation is contactlessly detected. A reference transponder and a control unit for actuating the transmitting unit and evaluating transponder signals in measuring cycles is provided. To improve the energy requirement of the method and system, the reference transponder may be mounted on the mobile machine at a defined distance, stored in the control unit, from the transmitting unit. The signal field strength L of the transmitter signal of the transmitting unit may be changed in dependence on the response signal of the reference transponder in a calibration cycle (KCB) for eliminating the environmental influences.

Abstract: A method and a longwall face extraction installation have a device for locating persons and/or mobile machines in mine caverns using RFID technology. Base stations are arranged in a distributed manner along the mine cavern to be monitored and have a transmitter and a receiver. At least one RFID transponder is associated with the person or machine to be located, which has stored identification data, can be activated using the base station and can be read in a contactless manner using the base station. In order to provide a method for locating persons and a longwall face extraction installation, in particular for coal mining, which make it possible to effectively use RFID technology, the transmitters of adjacently positioned base stations along a region of the mine cavern to be monitored successively emit their transmission wave in order to activate an RFID transponder.

Abstract: A method and system for determining the position and/or location of plant components of a mining extracting plant, which includes at least one face conveyor, a shield-type support system having a plurality of shield-type support frames and an extracting machine, the position/location of at least one plant component is determined by an evaluation system including a detection unit. To determine the location/position of at least one plant component even in the case of a dynamic mineral mining process, the detection unit includes an image sensor, by way of which at least four object points, which are at a predetermined spacing to each other and are detectable within the optical wavelength range, of at least one measuring object associated with one of the plant components, are detected and the position/location of the plant component can be determined from the projection of the object points detected by the image sensor.

Abstract: A system and method for increasing the operational safety of mobile machines in mining operations by utilizing RFID technology includes a transmitting unit at the mobile machine, a receiving unit, and a non-machine-related RFID transponder which can be activated by the transmitting unit and in the case of activation is contactlessly detected. A reference transponder and a control unit for actuating the transmitting unit and evaluating transponder signals in measuring cycles is provided. To improve the energy requirement of the method and system, the reference transponder may be mounted on the mobile machine at a defined distance, stored in the control unit, from the transmitting unit. The signal field strength L of the transmitter signal of the transmitting unit may be changed in dependence on the response signal of the reference transponder in a calibration cycle (KCB) for eliminating the environmental influences.

Abstract: A method and a longwall face extraction installation have a device for locating persons and/or mobile machines in mine caverns using RFID technology. Base stations are arranged in a distributed manner along the mine cavern to be monitored and have a transmitter and a receiver. At least one RFID transponder is associated with the person or machine to be located, which has stored identification data, can be activated using the base station and can be read in a contactless manner using the base station. In order to provide a method for locating persons and a longwall face extraction installation, in particular for coal mining, which make it possible to effectively use RFID technology, the transmitters of adjacently positioned base stations along a region of the mine cavern to be monitored successively emit their transmission wave in order to activate an RFID transponder.

Abstract: A method and system for determining the position and/or location of plant components of a mining extracting plant, which includes at least one face conveyor, a shield-type support system having a plurality of shield-type support frames and an extracting machine, the position/location of at least one plant component is determined by an evaluation system including a detection unit. To determine the location/position of at least one plant component even in the case of a dynamic mineral mining process, the detection unit includes an image sensor, by way of which at least four object points, which are at a predetermined spacing to each other and are detectable within the optical wavelength range, of at least one measuring object associated with one of the plant components, are detected and the position/location of the plant component can be determined from the projection of the object points detected by the image sensor.