Wireless Position Location And Tracking System
First Claim
1. A system comprising:
- a plurality of positioning engines, each of the plurality of positioning engines producing a location hypothesis for an object; and
a processor for receiving the plurality of location hypotheses from each of the plurality of positioning engines and generating a location estimate for the object therefrom.
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Accused Products
Abstract
Techniques for accurate position location and tracking suitable for a wide range of facilities in variable environments are disclosed. In one aspect, a system for position location comprises a plurality of sensors (e.g. a network monitor, an environment sensor) for generating measurements of a plurality of sources, a plurality of objects or tags, each object generating measurements of the plurality of sources, and a processor for receiving the measurements and generating a position location for one or more objects in accordance with the received measurements. In another aspect, a position engine comprises a mapped space of a physical environment, and a processor for updating the mapped space in response to received measurements. The position engine may receive second measurements from an object within the physical environment, and generate a position location estimate for the object from the received second measurements and the mapped space.
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Citations
20 Claims
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1. A system comprising:
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a plurality of positioning engines, each of the plurality of positioning engines producing a location hypothesis for an object; and a processor for receiving the plurality of location hypotheses from each of the plurality of positioning engines and generating a location estimate for the object therefrom. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A system for locating and tracking at least one object within an indoor facility, the indoor facility including a plurality of beacon emitters positioned therein, a plurality of network monitors, and a tag associated with the at least one object, each beacon emitter generating a radiofrequency signal, each network monitor attached to a wall outlet at a known location of the indoor facility and generating a first plurality of measurements comprising data including signal strength from each of the plurality of beacon emitters received by the network monitor, the tag generating a second plurality of measurements comprising data including signal strength from each of the plurality of beacon emitters received by the tag, the system comprising:
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a plurality of positioning engines, each positioning engine producing a location hypothesis for the at least one object; and a processor for receiving the plurality of location hypotheses and generating a location estimate for the at least one object in the indoor facility. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method for locating and tracking at least one object within an indoor facility, the indoor facility including a plurality of beacon emitters positioned therein, a plurality of network monitors, and a tag associated with the at least one object, each beacon emitter generating a radiofrequency signal, each network monitor attached to a wall outlet at a known location of the indoor facility and generating a first plurality of measurements comprising data including signal strength from each of the plurality of beacon emitters received by the network monitor, the tag generating a second plurality of measurements comprising data including signal strength from each of the plurality of beacon emitters received by the tag, the method comprising:
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generating a plurality of location hypotheses for the at least one object within the indoor facility, each of the plurality of location hypotheses generated by a positioning engine of a plurality of positioning engines; and generating a location estimate based on one or more of the plurality of location hypotheses. - View Dependent Claims (17, 18, 19, 20)
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Specification