Low power location-tracking device with combined short-range and wide-area wireless and location capabilities
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United States of America Patent
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Jan 20, 2015
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N/A
app pub date -
Sep 28, 2011
filing date -
Sep 28, 2011
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Abstract
A personal monitoring and communication system includes a monitoring and communication control device, at least one personal monitoring communication device coupled with a person and a personal monitoring communication device finder. The personal monitoring communication device includes a GPS receiver, cellular telephone circuits, and short-range wireless radio circuits for communicating with caregivers. The personal monitoring communication device finder receives an emergency beacon generated by one personal monitoring communication device and determines a location of the personal monitoring communication device. A dead reckoning circuit determines the position of the person from a reference location. A motion detection circuit determines that the person is moving, not moving, or has fallen. A battery power management circuit minimizes power consumption to increase battery life of a battery powering the personal monitoring communication device. A tamper detection circuit determines whether the personal monitoring communication device is coupled to the person.
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Family
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