Wireless Tracking System And Method Utilizing Multiple Location Algorithms
First Claim
1. A method for determining a real-time location of an object within a facility, the method comprising:
- transmitting a wireless signal from a communication device associated with an object;
receiving the wireless signal at least one of a plurality of sensors positioned within a facility; and
determining a real-time location of the object in the facility using an algorithm comprising a plurality of location sub-algorithms with a signal characteristic for the wireless signal received at the at least one of a plurality of sensors.
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Abstract
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
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Citations
20 Claims
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1. A method for determining a real-time location of an object within a facility, the method comprising:
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transmitting a wireless signal from a communication device associated with an object; receiving the wireless signal at least one of a plurality of sensors positioned within a facility; and determining a real-time location of the object in the facility using an algorithm comprising a plurality of location sub-algorithms with a signal characteristic for the wireless signal received at the at least one of a plurality of sensors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A system for determining a real-time location of an object within a facility, the system comprising:
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a plurality of objects, each of the plurality of objects comprising a communication device which transmits a wireless signal; a plurality of sensors positioned within the facility, at least one of the plurality of sensors receiving the wireless signal; a plurality of location engines in communication with each of the plurality of sensors, each of the plurality of location engines determining a real-time location of the object from the wireless signal utilizing a location algorithm. - View Dependent Claims (13, 14, 15)
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16. A method for determining a real-time location of an object within a facility, the method comprising:
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receiving a wireless signal from a communication device of an object at least one of a plurality of sensors positioned within a facility; forwarding the wireless signal from the at least one of a plurality of sensors to a first location engine; forwarding the wireless signal from the at least one of a plurality of sensors to a second location engine; calculating a real-time location of the object from the wireless signal utilizing a first location algorithm at the first location engine; calculating a real-time location of the object from the wireless signal utilizing a second location algorithm at the second location engine; and determining a real-time location of the object using the calculation from the first location engine and the calculation from the second location engine. - View Dependent Claims (17, 18, 19, 20)
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Specification