发明授权
- 专利标题: Wireless tracking system and method utilizing multiple location algorithms
- 专利标题(中): 无线跟踪系统和利用多位置算法的方法
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申请号: US13244257申请日: 2011-09-23
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公开(公告)号: US08457656B2公开(公告)日: 2013-06-04
- 发明人: Matthew R. Perkins , Wei Geng
- 申请人: Matthew R. Perkins , Wei Geng
- 申请人地址: US CA San Diego
- 专利权人: Awarepoint Corporation
- 当前专利权人: Awarepoint Corporation
- 当前专利权人地址: US CA San Diego
- 代理机构: Clause Eight IPS
- 代理商 Michael Catania
- 主分类号: H04W24/00
- IPC分类号: H04W24/00 ; G08B21/00
摘要:
The present invention provides a solution to mistaken location calculations based on multipath effects. The present invention determines a real-time location of an object in a facility using a combination of location algorithms, with a signal characteristic for a wireless signal from a communication device attached to the object received at a sensor of a mesh network. The location algorithms preferably include at least two of a proximity algorithm, a radial basis function algorithm, a maximum likelihood algorithm, a genetic algorithm, a minimum mean squared error algorithm, a radiofrequency fingerprinting algorithm, a multilateration algorithm, a time difference of arrival algorithm, a signal strength algorithm, a time of arrival algorithm, an angle of arrival algorithm, a spatial diversity algorithm, and a nearest neighbor algorithm.