Wide-area dynamic RFID system using UWB
First Claim
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1. A wide area radio frequency identification (RFID) system comprising:
- at least two RFID cells, wherein a first RFID cell includes a first reader and a first plurality of tags and a second RFID cell includes a second reader and a second plurality of tags, wherein the first reader is configured to access the first plurality of tags using ultra-wide band signaling and the second reader is configured to access the second plurality of tags using ultra-wide band signaling; and
a network operations center having at least one communications interface in communication with at least one of the at least two RFID cells;
wherein the first RFID cell and the second RFID cell each include a communications gateway operable to support direct communications between at least the first RFID cell and the second RFID cell;
wherein, via the communications gateways of the first RFID cell and the second RFID cell, the first reader of the first RFID cell is configured to query data from, or write data to, a tag within the second plurality of tags of the second RFID cell;
wherein the second RFID cell is configured to receive a security alarm from the first RFID cell via the direct communications that is arranged over a range of at least five hundred meters; and
wherein the first reader of the first RFID cell is configured to query data from, or write data to, a tag within the second plurality of tags of the second RFID cell in an instance in which the network operations center is unavailable.
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Abstract
A wide area radio frequency identification (RFID) system includes: a first RFID cell and a second RFID cell. The first RFID cell and the second RFID cell each include a reader and tags. The readers access the tags using ultra-wide band signaling. The RFID cells each include: a communications interface operable to communicate with a network operations center, and a communications gateway which supports direct communications between RFID cells. The method includes accessing the second RFID cell from the first RFID cell, and the accessing is performed using the communications gateway that can cover a range of at least five hundred meters.
60 Citations
15 Claims
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1. A wide area radio frequency identification (RFID) system comprising:
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at least two RFID cells, wherein a first RFID cell includes a first reader and a first plurality of tags and a second RFID cell includes a second reader and a second plurality of tags, wherein the first reader is configured to access the first plurality of tags using ultra-wide band signaling and the second reader is configured to access the second plurality of tags using ultra-wide band signaling; and a network operations center having at least one communications interface in communication with at least one of the at least two RFID cells; wherein the first RFID cell and the second RFID cell each include a communications gateway operable to support direct communications between at least the first RFID cell and the second RFID cell; wherein, via the communications gateways of the first RFID cell and the second RFID cell, the first reader of the first RFID cell is configured to query data from, or write data to, a tag within the second plurality of tags of the second RFID cell; wherein the second RFID cell is configured to receive a security alarm from the first RFID cell via the direct communications that is arranged over a range of at least five hundred meters; and wherein the first reader of the first RFID cell is configured to query data from, or write data to, a tag within the second plurality of tags of the second RFID cell in an instance in which the network operations center is unavailable. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for communicating between a first RFID cell and a second RFID cell in a wide area radio frequency identification (RFID) system, comprising:
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querying data from, or writing data to, a tag within a second plurality of tags of the second RFID cell via a communications gateway operable to support direct communications between the first RFID cell and the second RFID cell, the querying or writing being performed by a first reader; wherein the first RFID cell includes the first reader and a first plurality of tags and the second RFID cell includes a second reader and the second plurality of tags, wherein the first reader accesses the first plurality of tags using ultra-wide band signaling and the second reader accesses the second plurality of tags using ultra-wide band signaling; wherein the wide area RFID system further comprises a network operations center having at least one communications interface in communication with at least one of the first RFID cell and the second RFID cell; wherein the first RFID cell and the second RFID cell each include communications gateways operable to support the direct communications between the first RFID cell and the second RFID cell; wherein the second RFID cell is configured to receive a security alarm from the first RFID cell via the direct communications that is arranged over a range of at least five hundred meters; and wherein the first reader of the first RFID cell is configured to query data from, or write data to, a tag within the second plurality of tags of the second RFID cell in an instance in which the network operations center is unavailable. - View Dependent Claims (13, 14, 15)
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Specification