System and method for location detection and management of uncertain information thereof

• US 8,547,223 B2
• Filed: 10/10/2009
• Issued: 10/01/2013
• Est. Priority Date: 10/10/2009
• Status: Active Grant

• Current Assignee: Mitel Networks Corporation
• Original Assignee: Mitel Networks Corporation
• Inventors: Midtun, James D., Gray, Thomas A
• Primary Examiner(s): MULLEN, THOMAS J
• Application Number:
  US12/587,668
• Publication Number:
  US 20110084832A1
• Time in Patent Office: 1,452 Days
• Field of Search: 340/8.1, 702/94, 342/450, 342/451, 455/456.1, 455/457
• US Class Current: 340/539.13
• CPC Class Codes: G06Q 10/06 Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
• CPC Class Codes: G07C 9/00 Individual registration on entry or exit
• CPC Class Codes: G07C 9/28 the pass enabling tracking or indicating presence

Abstract

The system provides approximations of a person'"'"'s location to interested parties wherein the approximations are based upon a detection device'"'"'s location and inherent inaccuracies related to that detection device. The system can evaluate location information from multiple detectors and approximate the location using and combining that information. The system can provide a confidence level for that determination. The system can also degrade confidence levels assigned to the location as a function of time. Each location can include a hierarchy of subtypes with each subtype including a precision level, the precision level associated with an accuracy level of a detector involved for placing a person within that particular location. When a detector receives location information, the system described herein can traverse through the locations and their associated precision levels to approximate the correct type of location within the hierarchy using the accuracy level of the detector.

Claims

1. A method for managing location information comprising:

assigning a precision level to at least one location, the precision level comprising an expected accuracy level associated with a detector in said at least one location;

receiving location data from said detector, wherein said location data includes an actual accuracy level associated with said detector; and

setting location information associated with a detectable item within said at least one location to uncertain when said precision level for said at least one location is greater than said actual accuracy level associated with said detector.

2. The method of claim 1, wherein the method further comprises setting said location information to certain when said precision level for said at least one location is lower than or equal to said actual accuracy level of said detector.

3. The method of claim 1, wherein said at least one location is a general location, said general location assigned a low precision level.

4. The method of claim 1, wherein said at least one location is a specific location, said specific location assigned a high precision level.

5. The method of claim 1, wherein said detector is a wireless fidelity (WiFi) detector.

6. The method of claim 1, wherein said detector is a global positioning system.

7. A management and collaboration system comprising:

a database for storing a location type, wherein said location type includes a hierarchy of subtypes based on precision levels of said subtypes, said subtypes having confidence determinations and the precision levels comprising an expected accuracy level associated with a detector within a location;

at least one processor;

a memory operatively coupled to the processor, the memory storing program instructions that when executed by the processor, cause the processor to;

receive, from said detector, location data of a detectable item within the range of said detector, said location data including an actual accuracy level of said detector;

for said subtypes having higher precision levels than said actual accuracy level of said detector, set said confidence determinations for said subtypes to uncertainty and set said confidence determinations of said subtypes having lower precision levels than the actual accuracy level of said detector to certainty.

8. The system of claim 7, wherein said subtypes comprise key/value pairs.

9. The system of claim 8, wherein a value of said key/value pairs is restricted.

10. The system of claim 7, wherein said location type is a physical location type, said physical location type having a hierarchy of subtypes selected from the group consisting of a country subtype, a city subtype, a district subtype, a street subtype, a building subtype, a floor subtype, a room subtype, and a combination thereof.

11. The system of claim 10, wherein said room subtype comprises a male dressing room or a female dressing room.

12. The system of claim 7, wherein said location type is an enterprise location type, said enterprise location type having a hierarchy of subtypes selected from the group consisting of a premises subtype, a campus subtype, a building subtype, a room subtype, and a combination thereof.

13. The system of claim 7, wherein said location type is a user location type, said user location type having a hierarchy of subtypes selected from the group consisting of a venue subtype, a building subtype, a room subtype, and a combination thereof.

14. The system of claim 13, wherein said venue subtype comprises a work venue or home venue.

15. The system of claim 7, wherein said certainty and said uncertainty are percentages.