Abstract: A method and an arrangement for analysis of a material flow (S) is disclosed having one or more material components. The material flow (S) is conducted via a conveyor line. One or more acoustic sensors are allocated to the conveyor line. Acoustic signals produced by the material flow (S) are detected by the acoustic sensors and then converted into digital signals. The digital signals are analyzed in an evaluating unit in a computer-assisted manner and analyzed by means of an algorithm in comparison to reference values specified based on individual identifying characteristics of the material components, such that the material components are identified and the mass fraction of at least one material component in the material flow (S) is determined.

Abstract: A method and a device can be used to monitor the travel path of a cutting extraction machine (1), particularly one used in coal mining, which can be moved along the working front (10) equipped with a face conveyor (9) and an advancing support (12, 13) in longwall mining. Despite extremely poor viewing conditions, the method and device determine hindrances that might be present in the travel path of the extraction machine, in the form of shield caps that are standing low, or extendible cantilevers, sliding roof bars, or other attachments of the advancing support that are hanging down, or overloading of the conveyor, in order to be able to take measures to avoid disruptions in operation, in timely manner. The travel path of the extraction machine (1) is scanned by a radar measurement device (14) assigned to the extraction machine (1), and if a hindrance is determined, an alarm is triggered and/or intervention into the control of the extraction machine (1) takes place.

Abstract: The invention relates to a method for controlling a cutting extraction machine, which can be moved along a working front in longwall mining, in which method the heat emission of the working face (4) newly exposed by the extraction machine, in each instance, is observed using an infrared camera (10), and control data for the subsequent extraction run are generated on the basis of this observation.

Abstract: The invention relates to a method for controlling a cutting extraction machine, which can be moved along a working front in longwall mining, in which method the heat emission of the working face (4) newly exposed by the extraction machine, in each instance, is observed using an infrared camera (10), and control data for the subsequent extraction run are generated on the basis of this observation.

Abstract: The invention relates to a method and a device for monitoring the travel path of a cutting extraction machine (1), particularly one used in coal mining, which can be moved along the working front (10) equipped with a face conveyor (9) and a powered support (12, 13) in longwall mining. The invention is based on the task of creating a method and a device that make it possible, despite extremely poor viewing conditions, to determine hindrances that might be present in the travel path of the extraction machine, in the form of shield caps that are standing low, or extendible cantilevers, sliding roof bars, or other appurtenances of the powered support that are hanging down, or overloading of the conveyor, in order to be able to take measures to avoid disruptions in operation, in timely manner.

Abstract: A device for monitoring the service life of a machine-technical installation includes a sensor module and at least a measuring sensor for detecting stresses and expansions from a structural component of the machine-technical installation, a microcontroller, an antenna arrangement and a current source; the sensor module being in bi-directional connection with a data processing unit and having an antenna arrangement integrated therein, the antenna arrangement including a low-frequency antenna by means of which the sensor module is turned on and off and a high-frequency antenna for sending and receiving high frequency signals and wherein the sensor module can transition from an operating mode into a stand-by mode for energy efficiency and is reactivated through a signal from a detector element.

Abstract: A device for monitoring the service life of a machine-technical installation includes a sensor module and at least a measuring sensor for detecting stresses and expansions from a structural component of the machine-technical installation, a microcontroller, an antenna arrangement and a current source; the sensor module being in bi-directional connection with a data processing unit and having an antenna arrangement integrated therein, the antenna arrangement including a low-frequency antenna by means of which the sensor module is turned on and off and a high-frequency antenna for sending and receiving high frequency signals and wherein the sensor module can transition from an operating mode into a stand-by mode for energy efficiency and is reactivated through a signal from a detector element.