RADIO FREQUENCY IDENTIFICATION MONITORING SYSTEM AND METHOD
First Claim
1. A radio frequency identification (RFID) tag position identifying method for a reader, wherein the reader issues a reading signal, comprising:
- scanning a first plane by the reader to determine whether a tag ID code is received by the reader, wherein the RFID tag sends out the tag ID code when the RFID tag receives the reading signal;
identifying a first position of the RFID tag in the first plane when the tag ID code is received by the reader;
scanning a second plane from the first position by the reader, wherein the second plane is perpendicular to the first plane; and
identifying a second position of the RFID tag in the second plane when the tag ID code is received by the reader, wherein the first position and the second position define the RFID tag position.
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Accused Products
Abstract
The present invention provides a radio frequency identification (RFID) monitoring method, a reader located in a region to receive a tag ID code from a RFID tag, wherein the method comprises the steps of: (a) sending out a first reading signal from the reader; (b) determining whether the tag ID code is received by the reader; (c) recording a position of the RFID tag in a plane when the tag ID code is received by the reader; (d) rotating the reader a second angle toward a direction perpendicular to the plane; (e) sending out a second reading signal from the reader; (f) determining whether the tag ID code is received by the reader; and (g) recording a position of the RFID tag in the direction when the tag ID code is received by the reader.
24 Citations
13 Claims
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1. A radio frequency identification (RFID) tag position identifying method for a reader, wherein the reader issues a reading signal, comprising:
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scanning a first plane by the reader to determine whether a tag ID code is received by the reader, wherein the RFID tag sends out the tag ID code when the RFID tag receives the reading signal; identifying a first position of the RFID tag in the first plane when the tag ID code is received by the reader; scanning a second plane from the first position by the reader, wherein the second plane is perpendicular to the first plane; and identifying a second position of the RFID tag in the second plane when the tag ID code is received by the reader, wherein the first position and the second position define the RFID tag position. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A radio frequency identification (RFID) tag position identifying method for a reader, wherein the reader is located in a first axle to receive a tag ID code from the RFID tag, wherein the method comprises the steps of:
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sending out a reading signal from the reader; determining whether the tag ID code is received by the reader, wherein the RFID tag sends out the tag ID code when the RFID tag receives the reading signal; rotating a first angle toward a second axle by the reader and sending out the reading signal from the reader when the tag ID code is not received by the reader, wherein the first axle and the second axle define a plane; identifying a first position of the RFID tag in the plane when the tag ID code is received by the reader;
rotating a second angle toward a third axle by the reader, wherein the third axle is perpendicular to the plane;sending out the reading signal from the reader; determining whether the tag ID code is received by the reader; rotating a second angle toward the third axle by the reader and sending out the reading signal from the reader when the tag ID code is not received by the reader; and identifying a second position of the RFID tag in the third axle when the tag ID code is received by the reader, wherein the first position and the second position define the RFID tag position. - View Dependent Claims (9, 10, 11, 12, 13)
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Specification