Invention Application
- Patent Title: LOCATION ENHANCEMENT SYSTEM AND METHOD BASED ON TOPOLOGY CONSTRAINTS
- Patent Title (中): 基于拓扑约束的位置增强系统和方法
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Application No.: US12573398Application Date: 2009-10-05
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Publication No.: US20110082643A1Publication Date: 2011-04-07
- Inventor: Steve Huseth , Henry Chen , Tom Plocher
- Applicant: Steve Huseth , Henry Chen , Tom Plocher
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Main IPC: G01C21/30
- IPC: G01C21/30

Abstract:
A method for enhanced location sensing based on topology constraints. A potential position value and a corresponding probability value with respect to an observed position data of an object within a structure can be calculated utilizing a normal probability distribution function. Thereafter, an optimal route between adjacent observed time periods may be calculated utilizing a heuristic search algorithm. The potential position value and the optimal route can be calculated by accessing a pre-installed topology data associated with the structure. An optimization problem can then be solved to refine the observed position data. The position between a pair of observed time periods can be interpolated and the position of the object before a next observed time can be predicted by interpolation based on the spatial constraints.
Public/Granted literature
- US08306748B2 Location enhancement system and method based on topology constraints Public/Granted day:2012-11-06
Information query
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