Low-power wirelessly-linked RFID tracking system
First Claim
1. An RFID tracking system wirelessly interfaced with a two-way leaky feeder radio communication network configured to provide radio communications in a shielded environment for tracking at least one self-contained RFID tag in the shielded environment, comprising:
- the at least one self-contained RFID tag; and
at least one wirelessly-linked RFID reader wirelessly linked to the RFID tag, the wirelessly-linked RFID reader including;
an RFID receiver and a radio providing two-way voice communication to a user, the RFID receiver electrically transmitting tag information for the RFID tag to a leaky feeder cable through the radio and the radio electrically transmitting voice communication to the leaky feeder cable, the leaky feeder cable included in the two-way leaky feeder radio communication network providing two-way radio communications to system users in the shielded environment via a plurality of devices, said two-way leaky feeder radio communication network configured as a stand-alone interlinked radio network;
a plurality of ports for communicating with one or more devices configured to sense environmental data, and configured to trigger an emergency indicator based on the environmental data; and
a server computing device configured to receive transmissions from the radio of the wirelessly-linked RFID reader through the leaky feeder cable in the two-way leaky feeder radio communication network including a radio network headend in electronic communication with the server computing device, the transmissions comprising said tag information for the RFID tag and the environmental data and emergency feedback, wherein the wirelessly-linked RFID reader is communicatively linked to create a data path from the RFID tag through the two-way leaky feeder radio communication network configured to relay two-way voice communications in the shielded environment to a surface environment through the radio network headend.
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Accused Products
Abstract
A wirelessly-linked RFID tracking system is disclosed herein. The system includes low-power wirelessly-linked RFID readers in communication with a mine radio network to detect and transmit information received from a plurality of RFID tags. The RFID readers transmit tag information to a local server for providing notification and/or alarm information to system users as required under the Miner Act of 2006. The RFID readers may further include environmental sensors to sense and communicate environmental conditions wirelessly. In addition, the optional capability of hi-intensity warning LEDs mounted on the reader devices, may be deployed to alert personnel of an emergency condition even when hundreds of feet away from the device, irrespective of background noise prevalent in mining operations. The disclosed system communicatively links a plurality of wireless RFID readers to each other and/or to the mine radio network to create a data path from an underground environment to a surface environment. It should be appreciated that the system may be applied in a number of environments, including, but not limited to mines, oil platforms, industrial surface complexes, such as petroleum refineries, ships, etc.
45 Citations
22 Claims
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1. An RFID tracking system wirelessly interfaced with a two-way leaky feeder radio communication network configured to provide radio communications in a shielded environment for tracking at least one self-contained RFID tag in the shielded environment, comprising:
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the at least one self-contained RFID tag; and at least one wirelessly-linked RFID reader wirelessly linked to the RFID tag, the wirelessly-linked RFID reader including; an RFID receiver and a radio providing two-way voice communication to a user, the RFID receiver electrically transmitting tag information for the RFID tag to a leaky feeder cable through the radio and the radio electrically transmitting voice communication to the leaky feeder cable, the leaky feeder cable included in the two-way leaky feeder radio communication network providing two-way radio communications to system users in the shielded environment via a plurality of devices, said two-way leaky feeder radio communication network configured as a stand-alone interlinked radio network; a plurality of ports for communicating with one or more devices configured to sense environmental data, and configured to trigger an emergency indicator based on the environmental data; and a server computing device configured to receive transmissions from the radio of the wirelessly-linked RFID reader through the leaky feeder cable in the two-way leaky feeder radio communication network including a radio network headend in electronic communication with the server computing device, the transmissions comprising said tag information for the RFID tag and the environmental data and emergency feedback, wherein the wirelessly-linked RFID reader is communicatively linked to create a data path from the RFID tag through the two-way leaky feeder radio communication network configured to relay two-way voice communications in the shielded environment to a surface environment through the radio network headend. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 22)
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9. A wirelessly-linked RFID computing device, comprising:
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an emergency indicator; a power source; a processor; an RFID receiver electrically communicating with a reader antenna, the reader antenna wirelessly linked to a self-contained RFID tag; a radio electrically communicating with a leaky feeder cable in a two-way leaky feeder radio communication network to provide two-way voice communication to a user, the two-way leaky feeder radio communication network configured as a stand-alone interlinked radio network in a shielded environment; a memory holding instructions executable by the processor to; wirelessly receive tag information from the self-contained RFID tag by way of the reader antenna and RFID receiver; transmit both the tag information from the RFID tag and voice communication to a server computing device through each of the radio, radio antenna, and the leaky feeder cable in the existing two-way leaky feeder radio communication network; trigger the emergency indicator based on environmental sensor data received from one or more devices; and transmit emergency feedback to the server computing device; and a gas sensor card configured to send environmental sensor data through the existing two-way leaky feeder radio communication network providing radio communications in the shielded environment. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A method of tracking RFID tags using a two-way leaky feeder radio communication network extending into a shielded environment, the method comprising:
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deploying a plurality of self-contained RFID tags, each self-contained RFID tag configured to transmit tag information identifying the self-contained RFID tag; deploying a plurality of wirelessly-linked RFID readers, each wirelessly-linked RFID reader comprising an RFID receiver and a radio configured to provide two-way voice communication to a user, the RFID receiver electrically communicating with a reader antenna wirelessly linked to a self-contained RFID tag, and the radio electrically communicating with a leaky feeder cable in the two-way leaky feeder radio communication network providing two-way radio communications to system users in the shielded environment via a plurality of devices, each wirelessly-linked RFID reader interfaced to the two-way leaky feeder radio communication network extending into the shielded environment via the radio and the radio antenna and said two-way leaky feeder radio communication network configured as a stand-alone interlinked radio network; and at the wirelessly-linked RFID reader; receiving a tag information transmission from one of the plurality of self-contained RFID tags; receiving an environmental information transmission from one or more environmental sensors; triggering an emergency indicator based on the environmental information; sending a message to a server computing device through the leaky feeder cable and a radio network headend, the server computing device located in a surface environment via the two-way leaky feeder radio communication network extending into the shielded environment, the message including the tag information, the environmental information, and identifying information for the wirelessly-linked RFID reader; and receiving a voice alert from the server computing device broadcast over the two-way leaky feeder radio communication network, the server computing device generating the voice alert when environmental information received by the server computing device surpasses a threshold value. - View Dependent Claims (18, 19, 20, 21)
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Specification