Method for locating persons and/or mobile machines in mine caverns using RFID technology, and longwall face extraction installation for carrying out the method

摘要

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.

主权项

1. A method for locating persons or mobile machines in a mine cavern using RFID technology; comprising: providing a plurality of base stations arranged in a distributed manner along the mine cavern to be monitored, one or more of the base stations having a transmitter and one or more receivers; providing at least one RFID transponder associated with the person or machine to be located, the RFID transponder having stored identification data, is activable using the base station and readable in a contactless manner using the receivers; wherein 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; wherein a signal strength of the transmission wave from each transmitter is changeable and is changed in order to determine a distance between a detected RFID transponder and a nearest base station.