Method for locating persons and/or mobile machines in mine caverns using RFID technology, and longwall face extraction installation for carrying out the method
First Claim
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.
1 Assignment
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Accused Products
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.
12 Citations
19 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
- comprising;
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8. A longwall face extraction installation, comprising:
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shield support frames arranged along the longwall face; a conveying device for transporting extracted material; an extraction machine movable between ends of the longwall face; a device for locating persons or machines at the longwall face using RFID technology, the device having base stations arranged in a distributed manner along the longwall face and having a transmitter, and one or more receivers arranged in a distributed manner along the longwall face, and at least one RFID transponder associated with the person or machine to be located, wherein the RFID transponder has stored identification data, is activatable using the base stations and is readable in a contactless manner, and a central controller for the base stations; wherein a base station is associated with every shield support frame or a base station is associated with every nth shield support frame, where n=2 to 5, and the base stations are controllable using the central controller in such a manner that the transmitters of adjacently positioned base stations successively emit their transmission wave in order to activate an RFID transponder. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. 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 the mine cavern comprises longwall faces of mining extraction installations, and further comprising shield support frames which are positioned along the longwall face and are intended to keep the longwall face open, and a conveying device for transporting extracted material and an extraction machine which is movable between ends of the longwall face, wherein a base station is associated with every shield support frame or every nth shield support frame, where n=2 to 5. - View Dependent Claims (19)
- comprising;
Specification