DISTANCE MEASUREMENTS USING A SINGLE WIRELESS READER
First Claim
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1. A method for determining a location of a wireless tag, the method comprising:
- generating or receiving, by a wireless reader, information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time;
wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time;
generating or receiving by the wireless reader information about a spatial relationship between the different locations or receiving information indicative of the spatial; and
determining by the wireless reader, the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations.
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Abstract
A method, comprising: generating or receiving information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time; wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time; generating or receiving information about a spatial relationship between the different locations or receiving information indicative of the spatial; and determining the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations.
8 Citations
20 Claims
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1. A method for determining a location of a wireless tag, the method comprising:
- generating or receiving, by a wireless reader, information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time;
wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time;
generating or receiving by the wireless reader information about a spatial relationship between the different locations or receiving information indicative of the spatial; and
determining by the wireless reader, the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
- generating or receiving, by a wireless reader, information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time;
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11. A wireless reader, comprising a wireless transceiver and a processor;
- wherein the wireless transceiver is arranged to exchange wireless messages with a wireless tag at different points of time;
wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time;
wherein the processor is arranged to;
(a) process at least some of the wireless messages to provide multiple distance measurements of distances between the wireless tag and the wireless reader as existed at the different point of time;
(b) generate or receive information about a spatial relationship between the different locations or receiving information indicative of the spatial; and
(c) determine by the wireless reader, the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
- wherein the wireless transceiver is arranged to exchange wireless messages with a wireless tag at different points of time;
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20. A non-transitory computer readable medium that stores instructions that when executed by a computer cause the computer to execute the stages of:
- generating or receiving information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time;
wherein the wireless reader is positioned at different locations in relation to the wireless reader at the different points of time;
generating or receiving information about a spatial relationship between the different locations or receiving information indicative of the spatial; and
determining the location of the wireless tag in response to the multiple range measurements and the spatial relationship between the different locations.
- generating or receiving information about multiple distance measurements of distances between the wireless tag and the wireless reader at different points of time;
Specification