Method and a system for determining the location of a subject on the basis of a location score computed from signals received from a radio frequency identification tag
First Claim
1. A method for determining the location of a subject, comprisingreceiving, by a first set of receivers out of a plurality of receivers, a first signal from a radio frequency identification tag that is assigned to the subject, wherein the radio frequency identification tag has a radio frequency identification tag identity;
- receiving, by a second set of receivers out of a plurality of receivers, a second signal from the radio frequency identification tag, the second signal being different from the first signal, wherein the second set of receivers is different from the first set of receivers;
computing a location score on the basis of information about the first signal, wherein the information about the first signal is included in the first signal received by the first set of receivers, and also on the basis of information about the second signal, wherein the information about the second signal is included in the second signal received by the second set of receivers; and
determining the location of the subject on the basis of the location score, wherein determining the location of the subject on the basis of the location score includes determining whether the location score is unique.
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Accused Products
Abstract
According to one embodiment of the present invention, a method for determining the location of a subject is provided. The method includes receiving, by a first set of receivers out of a plurality of receivers, a first signal from a radio frequency identification tag being assigned to the subject, wherein the radio frequency identification tag has assigned a radio frequency identification tag identity; receiving, by a second set of receivers out of a plurality of receivers, a second signal from the radio frequency identification tag, the second signal being different from the first signal, wherein the second set of receivers is different from the first set of receivers; computing a location score based on an information about the first signal, wherein the information about the first signal is included in the first signal and on the first set of receivers, and further based on an information about the second signal, wherein the information about the second signal is included in the second signal and on the second set of receivers; and determining the location of the subject based on the location score. A system for determining the location of a subject is also provided. A radio frequency identification tag assembly is also provided.
15 Citations
34 Claims
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1. A method for determining the location of a subject, comprising
receiving, by a first set of receivers out of a plurality of receivers, a first signal from a radio frequency identification tag that is assigned to the subject, wherein the radio frequency identification tag has a radio frequency identification tag identity; -
receiving, by a second set of receivers out of a plurality of receivers, a second signal from the radio frequency identification tag, the second signal being different from the first signal, wherein the second set of receivers is different from the first set of receivers; computing a location score on the basis of information about the first signal, wherein the information about the first signal is included in the first signal received by the first set of receivers, and also on the basis of information about the second signal, wherein the information about the second signal is included in the second signal received by the second set of receivers; and determining the location of the subject on the basis of the location score, wherein determining the location of the subject on the basis of the location score includes determining whether the location score is unique. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for determining the location of a subject, comprising
a first set of receivers out of a plurality of receivers for receiving a first signal from a radio frequency identification tag that is assigned to the subject, wherein the radio frequency identification tag has a radio frequency identification tag identity; -
a second set of receivers out of a plurality of receivers for receiving a second signal from the radio frequency identification tag, the second signal being different from the first signal, wherein the second set of receivers is different from the first set of receivers; a computing unit for computing a location score on the basis of information about the first signal, wherein the information about the first signal is included in the first signal received by the first set of receivers, and also on the basis of information about the second signal, wherein the information about the second signal is included in the second signal received by the second set of receivers; and a determining unit for determining the location of the subject on the basis of the location score, wherein determining of the location of the subject on the basis of the location score includes determining whether the location score is unique. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34)
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Specification
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Current AssigneeCADI Scientific Pte Ltd.
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Original AssigneeCADI Scientific Pte Ltd.
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InventorsGoh, Zenton, Neo, Sian Sheng, Ng, Hon Cheong, Lim, Soh Min
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Primary Examiner(s)Ghayour, Mohammad
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Assistant Examiner(s)RUSHING, MARK S
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Application NumberUS13/054,930Publication NumberTime in Patent Office1,973 DaysField of Search342/357.25, 235/492, 340/8.1, 340/539.13US Class Current340/10.41CPC Class CodesG01S 2013/466 by Trilateration, i.e. two ...G01S 5/02521 using a radio-mapG06K 19/0723 the record carrier comprisi...
