SYSTEMS AND METHODS FOR LOCATING AND DETERMINING THE ORIENTATION OF A HANDHELD DEVICE
First Claim
Patent Images
1. A method for determining a location of a handheld reader within a facility, comprising:
- performing first operations by the handheld reader to read Radio Frequency Identifier (“
RFID”
) tags having locations within the facility that are unknown to the handheld reader;
performing second operations by the handheld reader to receive first signals from a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility; and
determining at least one of an orientation of the handheld reader and a location of the handheld reader within the facility using a combination of at least two of (1) Received Signal Strength Indicator (“
RSSI”
) levels of the first signals, (2) known locations of the RF enabled devices associated with Time Of Flight (“
TOF”
) values, (3) sensor data generated by first sensors disposed in the handheld reader, (4) sensor data generated by second sensors disposed at known locations within the facility, (5) known antenna patterns of the RF enabled devices, (6) a known antenna pattern of the handheld reader, and (7) information indicating which RFID tags were read by the handheld reader and at least one of the RF enabled devices;
wherein the first and second operations are performed while the handheld reader is being carried by a person throughout the facility.
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Accused Products
Abstract
Systems (100) and methods (400) for determining a Handheld Reader'"'"'s (“HR”) location within a facility. The methods involve: performing first operations by HR to read RFID tags having locations within the facility that are unknown to the handheld reader; performing second operations by HR to receive signals from RF Enabled Devices (“RFED”) located at known locations within the facility; and determining HR'"'"'s location/orientation using RSSI levels or TOF values of signals received from RFEDs, known locations of RFEDs, sensor data, known antenna patterns of RFEDs, a known antenna pattern of HR, and/or (9) information indicating which RFID tags were read by HR and at least one RFED. The first and second operations are performed while HR is being carried by a person throughout the facility.
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Citations
21 Claims
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1. A method for determining a location of a handheld reader within a facility, comprising:
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performing first operations by the handheld reader to read Radio Frequency Identifier (“
RFID”
) tags having locations within the facility that are unknown to the handheld reader;performing second operations by the handheld reader to receive first signals from a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility; anddetermining at least one of an orientation of the handheld reader and a location of the handheld reader within the facility using a combination of at least two of (1) Received Signal Strength Indicator (“
RSSI”
) levels of the first signals, (2) known locations of the RF enabled devices associated with Time Of Flight (“
TOF”
) values, (3) sensor data generated by first sensors disposed in the handheld reader, (4) sensor data generated by second sensors disposed at known locations within the facility, (5) known antenna patterns of the RF enabled devices, (6) a known antenna pattern of the handheld reader, and (7) information indicating which RFID tags were read by the handheld reader and at least one of the RF enabled devices;wherein the first and second operations are performed while the handheld reader is being carried by a person throughout the facility. - View Dependent Claims (2, 4, 5, 6, 7, 8, 9, 10)
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3. (canceled)
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11. A handheld reader, comprising:
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an electronic circuit configured to perform first operations to read Radio Frequency Identifier (“
RFID”
) tags having locations within the facility that are unknown to the handheld reader,perform second operations to receive first signals from a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility, anddetermine at least one of an orientation of the handheld reader and a location of the handheld reader within the facility using a combination of at least two of (1) Received Signal Strength Indicator (“
RSSI”
) levels of the first signals, (2) known locations of the RF enabled devices associated with Time Of Flight (“
TOF”
) values, (3) sensor data generated by first sensors disposed in the handheld reader, (4) sensor data generated by second sensors disposed at known locations within the facility, (5) known antenna patterns of the RF enabled devices, (6) a known antenna pattern of the handheld reader, and (7) information indicating which RFID tags were read by the handheld reader and at least one of the RF enabled devices;wherein the first and second operations are performed while the handheld reader is being carried by a person throughout the facility.
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12. A system, comprising:
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a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility;a handheld reader performing first operations to read Radio Frequency Identifier (“
RFID”
) tags having locations within the facility that are unknown to the handheld reader,second operations to receive first signals from a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility; anda computing device configured to determinate an orientation of the handheld reader and a location of the handheld reader within the facility using a combination of at least two of (1) Received Signal Strength Indicator (“
RSSI”
) levels of the first signals, (2) known locations of the RF enabled devices associated with Time Of Flight (“
TOF”
) values, (3) sensor data generated by first sensors disposed in the handheld reader, (4) sensor data generated by second sensors disposed at known locations within the facility, (5) known antenna patterns of the RF enabled devices, (6) a known antenna pattern of the handheld reader, and (7) information indicating which RFID tags were read by the handheld reader and at least one of the RF enabled devices;wherein the first and second operations are performed while the handheld reader is being carried by a person throughout the facility. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A method for determining a location of a handheld reader within a facility, comprising:
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performing first operations by the handheld reader to read Radio Frequency Identifier (“
RFID”
) tags having locations within the facility that are unknown to the handheld reader;performing second operations by the handheld reader to receive first signals from a plurality of stationary Radio Frequency (“
RF”
) enabled devices located at known locations within the facility; anddetermining at least one of an orientation of the handheld reader and a location of the handheld reader within the facility using a combination of at least two of (1) known locations of the RF enabled devices associated with Received Signal Strength Indicator (“
RSSI”
) levels, (2) known locations of the RF enabled devices associated with the TOF values, (3) sensor data generated by first sensors disposed in the handheld reader, (4) sensor data generated by second sensors disposed at known locations within the facility, (5) known antenna patterns of the RF enabled devices, (6) a known antenna pattern of the handheld reader, and (7) information indicating which RFID tags were read by the handheld reader and at least one of the RF enabled devices;wherein the first and second operations are performed while the handheld reader is being carried by a person throughout the facility
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Specification
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Current AssigneeSensormatic Electronics LLC (Johnson Controls International plc)
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Original AssigneeTyco Fire & Security GmbH (Johnson Controls International plc)
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InventorsCampero, Richard J., Trivelpiece, Steve E., Hosseini, Alister, Trivelpiece, Craig E.
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Granted Patent
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Time in Patent OfficeDays
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Field of Search
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US Class Current1/1
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CPC Class CodesG01S 11/04 using angle measurementsG01S 11/06 using intensity measurementsG01S 5/14 Determining absolute distan...G06K 19/0723 the record carrier comprisi...G06K 7/0008 General problems related to...G06Q 10/087 Inventory or stock manageme...G08B 13/2462 Asset location systems comb...
