Wireless tracking system and method utilizing variable location algorithms
First Claim
Patent Images
1. A method for determining a real-time location of an object within a facility, the method comprising:
- transmitting a wireless first power level signal from a communication device associated with an object;
transmitting a wireless second power level signal from the communication device associated with the object;
receiving the first power level signal at at least one of a plurality of sensors positioned within a facility and receiving the second power level signal at at least one of a plurality of sensors positioned within a facility;
calculating a first power level location from the first power level signal utilizing a first location algorithm;
calculating a second power level location from the second power level signal utilizing a second location algorithm; and
determining a real-time location of the object using the first power level location and the second power level location.
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Abstract
The present invention provides a solution to mistaken location calculations based on multipath effects. The present invention utilizes tags attached to objects that transmit signals at various power levels for reception by sensors stationed throughout a facility. Sensor readings at the various power levels are utilized to determine the location of the tagged object.
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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 first power level signal from a communication device associated with an object; transmitting a wireless second power level signal from the communication device associated with the object; receiving the first power level signal at at least one of a plurality of sensors positioned within a facility and receiving the second power level signal at at least one of a plurality of sensors positioned within a facility; calculating a first power level location from the first power level signal utilizing a first location algorithm; calculating a second power level location from the second power level signal utilizing a second location algorithm; and determining a real-time location of the object using the first power level location and the second power level location. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. 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 first power level signal and a wireless second power level signal; a plurality of sensors positioned within the facility, at least one of the plurality of sensors receiving the first power level signal and at least one of the plurality of sensors receiving the second power level signal; a server in communication with each of the plurality of sensors, the server calculating a first power level location of the object from the first power level signal utilizing a first location algorithm, calculating a second power level location of the object from the second power level signal utilizing a second location algorithm, and determining a real-time location of the object using the first power level location and the second power level location. - View Dependent Claims (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 first wireless power level signal from a communication device of an object at at least one of a plurality of sensors positioned within a facility; receiving a second wireless power level signal the communication device of the object at at least one of the plurality of sensors positioned within the facility; calculating a first power level location from the first wireless power level signal utilizing a first location algorithm; calculating a second power level location from the second wireless power level signal utilizing a second location algorithm; and determining a real-time location of the object using the first power level location and the second power level location. - View Dependent Claims (17, 18, 19, 20)
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Specification