Real-time method and system for determining and validating location of a relocated mobile object or person in a tracking environment
First Claim
1. A real-time method of determining and validating location of a relocated mobile object or person in a tracking environment in which a plurality of sensors are located, the method comprising:
- (a) providing a tracking tag having storage and wearable by the person or attachable to the object;
(b) storing a set of data related to a prior location of a relocated tag in the tracking environment in the storage;
(c) modulating a first carrier signal with a first packet including a first set of data to obtain a modulated first signal;
(d) transmitting from the tag to a sensor nearest the relocated tag the first signal, the first signal containing the first packet and having a first precision and a first range within the environment;
(e) receiving a modulated second signal at the tag from at least one of the sensors including the nearest sensor, the second signal containing a second packet including a second set of data and having a second precision and a second range within the environment;
(f) demodulating the second signal to obtain the second packet;
(g) repeating steps (c) through (f) if the second set of data is different from the stored set of data to obtain a plurality of second packets; and
(h) determining and validating current location of the relocated tag within the environment based on the plurality of second packets.
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Abstract
A real-time method and system of determining and validating location of a relocated mobile object or person in a tracking environment in which a plurality of sensors are located are provided. The method includes modulating a first carrier signal with a first packet including a first set of data to obtain a modulated first signal. The first signal contains the first packet and has a first precision and a first range within the environment. A modulated second signal is received from at least one of the sensors including the nearest sensor. The second signal contains a second packet including a second set of data and has a second precision and a second range within the environment. The method further includes determining and validating current location of the relocated tag within the environment based on a plurality of second packets.
60 Citations
40 Claims
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1. A real-time method of determining and validating location of a relocated mobile object or person in a tracking environment in which a plurality of sensors are located, the method comprising:
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(a) providing a tracking tag having storage and wearable by the person or attachable to the object; (b) storing a set of data related to a prior location of a relocated tag in the tracking environment in the storage; (c) modulating a first carrier signal with a first packet including a first set of data to obtain a modulated first signal; (d) transmitting from the tag to a sensor nearest the relocated tag the first signal, the first signal containing the first packet and having a first precision and a first range within the environment; (e) receiving a modulated second signal at the tag from at least one of the sensors including the nearest sensor, the second signal containing a second packet including a second set of data and having a second precision and a second range within the environment; (f) demodulating the second signal to obtain the second packet; (g) repeating steps (c) through (f) if the second set of data is different from the stored set of data to obtain a plurality of second packets; and (h) determining and validating current location of the relocated tag within the environment based on the plurality of second packets. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A real-time system of determining and validating location of a relocated mobile object or person in a tracking environment, the system comprising:
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a plurality of sensors located in the tracking environment; and a tracking tag wearable by the person or attachable to the object, the tag having storage and being programmed to at least partially perform the steps of; (a) storing a set of data related to a prior location of the relocated tag in the tracking environment in the storage; (b) modulating a first carrier signal with a first packet including a first set of data to obtain a modulated first signal; (c) transmitting to a sensor nearest the relocated tag the first signal, the first signal containing the first packet and having a first precision and a first range within the environment; (d) receiving a modulated second signal from at least one of the sensors including the nearest sensor, the second signal containing a second packet including a second set of data and having a second precision and a second range within the environment; (e) demodulating the second signal to obtain the second packet; (f) repeating steps (b) through (e) if the second set of data is different from the stored set of data to obtain a plurality of second packets; and (g) determining and validating current location of the relocated tag within the environment based on the plurality of second packets. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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Specification