US 2019/0104383 A1Published application

Mobile tag sensing and location estimation

AssigneeenLighted, Inc.

InventorsWilliam Kerry Keal, Tanuj Mohan, Gaile Gordon

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Abstract

Apparatuses, methods, and systems for estimating a location of a tag are disclosed. One method includes sensing a first condition of a structure, sensing a second condition of the structure, generating a first set of weighted likelihoods based on the first sensed condition of the structure, wherein the first set of weighted likelihoods includes a weighted likelihood of the tag being at each one of a plurality of grid points within the structure, generating a second set of weighted likelihoods based on the second sensed condition of the structure, wherein the second set of weighted likelihoods includes a weighted likelihood of the tag being at each one of the plurality of grid points, generating a combined set of likelihoods based on the first set of weighted likelihoods and the second set of weighted likelihoods, and estimating a location of the tag based on the combined set of likelihoods.

Claims20

Dependent claims

A building control system, comprising;

a mobile tag, wherein the mobile tag operates to move within a structure;
a plurality of first sensors, wherein the plurality of first sensors operate to sense a first condition of the structure;
a plurality of second sensors, wherein the plurality of second sensors operate to sense a second condition of the structure;
a controller, wherein the controller operates to:
generate a first set of weighted likelihoods based on the first sensed condition of the structure, wherein the first set of weighted likelihoods includes a weighted likelihood of the mobile tag being at each one of a plurality of grid points within the structure;
generate a second set of weighted likelihoods based on the second sensed condition of the structure, wherein the second set of weighted likelihoods includes a weighted likelihood of the mobile tag being at each one of the plurality of grid points within the structure;
generate a combined set of likelihoods based on the first set of weighted likelihoods and the second set of weighted likelihoods;
and
estimate a location of the mobile tag within the structure based on the combined set of likelihoods.

6 more elements

A method, comprising;

sensing, by a plurality of first sensors, a first condition of the structure;
sensing, by a plurality of second sensors, a second condition of the structure;
generating a first set of weighted likelihoods based on the first sensed condition of the structure, wherein the first set of weighted likelihoods includes a weighted likelihood of a mobile tag being at each one of a plurality of grid points within the structure;
generating a second set of weighted likelihoods based on the second sensed condition of the structure, wherein the second set of weighted likelihoods includes a weighted likelihood of the mobile tag being at each one of the plurality of grid points within the structure;
generating a combined set of likelihoods based on the first set of weighted likelihoods and the second set of weighted likelihoods;
and
estimating a location of the mobile tag within the structure based on the combined set of likelihoods.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/953,466Filed 15 Apr 2018
Priority: 4 Oct 2017
Published: 4 Apr 2019
Term ends: Not estimatedThe source records don’t support an estimate.

Classification12 codes

H04W 4/029
Services making use of location information: location-based management or tracking services
G01S 5/01
Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance…:…
G01S 5/0269
Using radio waves: inferred or constrained positioning, e.g. employing knowledge of the physical or electromagnetic environment, state of motion…
G01S 5/0278
Using radio waves: involving statistical or probabilistic considerations