Mobile tag sensing and location determination

1. A location determining system, comprising:

a mobile tag positioned at a first location within a structure, the structure including a plurality of second locations;

a plurality of sensors positioned at different locations of the structure, the plurality of sensors being configured to sense a structure condition; and

a controller, the controller operating to:

determine a plurality of possible paths of the mobile tag within the structure;

generate a first set of weighted likelihoods of the mobile tag being located at each second location of the plurality of second locations at a future point in time based on the plurality of possible paths and distances between the first location and the plurality of second locations;

determine a distance between the mobile tag and the plurality of sensors based on at least one beacon received from the mobile tag by the plurality of first sensors;

generate a second set of weighted likelihoods of the mobile tag being located at each second location of the plurality of second locations based on the distance between the mobile tag and the plurality of sensors; and

determine a location of the mobile tag within the structure based on the first set of weighted likelihoods and the second set of weighted likelihoods.

2. The location determining system as described by claim 1 , further comprising a floor plan of the structure, wherein the plurality of second locations are distributed throughout at least a portion of the floor plan.

3. The location determining system as described by claim 1 , wherein the controller associates each second location of the plurality of second locations with directional data distinguishing blocked paths from non-blocked paths.

4. The location determining system as described by claim 3 , wherein the controller associates each second location of the plurality of second locations with a boundary having a shape determined by the directional data.

5. The location determining system as described by claim 1 , wherein the plurality of sensors receive a signal strength from the mobile tag.

6. The location determining system as described by claim 5 , wherein:

the mobile tag includes a motion sensor; and

the plurality of sensors receive a wireless signal in response to the motion sensor detecting motion at the mobile tag.

7. The location determining system as described by claim 1 , wherein the plurality of sensors sense motion detected in proximity to each sensor of the plurality of sensors.

8. The location determining system of claim 1 , wherein:

the controller generates a combined set of likelihoods based on the first set of weighted likelihoods and the second set of weighted likelihoods; and

the controller determines the location of the mobile tag within the structure based on the combined set of likelihoods.

9. A method for a location determining system comprising:

determining a first location of a mobile tag within a structure at a first time;

identifying a plurality of second locations within the structure;

determining a plurality of possible paths of the mobile tag within the structure;

generating a first set of weighted likelihoods of the mobile tag being located at each second location of the plurality of second locations at a future point in time based on the plurality of possible paths and distances between the first location and the plurality of second locations;

determine a distance between the mobile tag and the plurality of sensors based on at least one beacon received from the mobile tag by the plurality of first sensors;

generating a second set of weighted likelihoods of the mobile tag being located at each second location of the plurality of second locations based on the distance between the mobile tag and the plurality of sensors; and

determining a location of the mobile tag within the structure based on the first set of weighted likelihoods and the second set of weighted likelihoods.

10. The method as described by claim 9 , further comprising identifying a floor plan of the structure, wherein the plurality of second locations are distributed throughout at least a portion of the floor plan.

11. The method as described by claim 9 , wherein identifying a plurality of second locations within the structure includes associating each second location of the plurality of second locations with directional data distinguishing blocked paths from non-blocked paths.

12. The method as described by claim 11 , wherein associating each second location of the plurality of second location with the directional data includes associating each second location of the plurality of second locations with a boundary having a shape determined by the directional data.

13. The method as described by claim 9 , further comprising receiving a signal strength from the mobile tag.

14. The method as described by claim 9 , further comprising receiving a wireless signal in response to detecting motion at the mobile tag by a motion sensor of the mobile tag.

15. The method as described by claim 9 , further comprising sensing motion in proximity to each sensor of the plurality of sensors.

16. The method of claim 9 , further comprising generating a combined set of likelihoods based on the first set of weighted likelihoods and the second set of weighted likelihoods, wherein determining the location of the mobile tag within the structure includes determining the location of the mobile tag based on the combined set of likelihoods.