Mobile RFID reader with integrated location awareness for material tracking and management
First Claim
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1. A radio frequency identification (RFID) system, comprising:
- an RFID component that senses an RFID tag associated with an object;
a location component integral to the RFID component that facilitates determination of a location of the RFID component; and
a programmable logic controller (PLC) that receives RFID component location data and RFID tag data, and processes the RFID component location data and the RFID tag data in combination with data of PLC to facilitate the location of the tagged object.
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Abstract
A portable RFID reader (or reader/writer) that also employs a location determination subsystem that facilitates determination of the reader (or reader/writer) location. The location subsystem can employ a satellite-based GPS (Global Positioning System) location technology where such signals are unimpeded by structures. Additionally, the location subsystem can employ other terrestrial location technologies that operate inside structures such as warehouses and the factory automation environment.
268 Citations
33 Claims
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1. A radio frequency identification (RFID) system, comprising:
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an RFID component that senses an RFID tag associated with an object; a location component integral to the RFID component that facilitates determination of a location of the RFID component; and a programmable logic controller (PLC) that receives RFID component location data and RFID tag data, and processes the RFID component location data and the RFID tag data in combination with data of PLC to facilitate the location of the tagged object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An RFID system, comprising:
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a mobile RFID reader that reads an RFID tag associated with an object; a location component as part of the RFID reader that facilitates determination of location data of a location of the mobile RFID reader; and a programmable logic controller (PLC) that receives RFID reader location data and RFID tag data and processes the RFID reader location data and the RFID tag data in combination with data of PLC to facilitate the location of the tagged object. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of determining location of a portable RFID reader, comprising:
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receiving a portable reading device that performs at least one of reading from and writing to an RFID tag of an object; providing a location subsystem as part of the portable reading device that communicates with an external location system to determine location data that represents the location of the portable reading device and an RFID tag read by the portable reading device; transmitting the location data of the portable reading device and RFID tag data to a PLC; and processing the location data of the portable reading device and RFID tag data in combination with data of PLC to determine the location of the tagged object. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29)
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30. A portable RFID reader, comprising:
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means for reading RFID data of an RFID tag; means for interfacing to a remote geographic location system; means for processing location data received from the remote geographic location system; means for transmitting the RFID data and the location data for storage; means for transmitting the location data and RFID data of an RFID tag to a PLC; and means for processing the location data and RFID data in combination with data of PLC to determine the location of the RFID tag. - View Dependent Claims (31, 32, 33)
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Specification