Proximity aware personal alert system
First Claim
1. A proximity aware personal alert system comprising:
- a first mobile transceiver unit; and
a second mobile transceiver unit in communication with the first mobile transceiver unit via an RF link, the second mobile transceiver providing an alarm indication when the first mobile transceiver has moved a predetermined distance from the second mobile transceiver unit.
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Abstract
Disclosed is a proximity aware personal alert system including a first mobile transceiver unit and a second mobile transceiver unit in communication with the first mobile transceiver unit via an RF link where the second mobile transceiver provides an alarm indication when the first mobile transceiver has moved a predetermined distance from the second mobile transceiver unit. When the RF link is configured as a Bluetooth link, the first and second mobile transceiver units form a monitoring piconet where the second mobile transceiver unit provides the alarm indication when the first mobile transceiver unit moves beyond a distance of approximately ten meters from the second mobile transceiver unit. The first transceiver unit is worn by a monitored person such as a child and the second transceiver unit is worn by a monitoring person such as a parent of the child.
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Citations
33 Claims
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1. A proximity aware personal alert system comprising:
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a first mobile transceiver unit; and
a second mobile transceiver unit in communication with the first mobile transceiver unit via an RF link, the second mobile transceiver providing an alarm indication when the first mobile transceiver has moved a predetermined distance from the second mobile transceiver unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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24. A method for detecting when a first mobile transceiver unit has moved a predetermined distance from a second mobile transceiver unit, the second mobile transceiver unit including a controller having a processor and a memory coupled to the processor, the method comprising:
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establishing a communication between the second mobile transceiver unit and at least one first mobile transceiver unit;
providing a first indication indicating successful communication establishment between the second mobile transceiver unit and the at least one first mobile transceiver unit;
transmitting a periodic request for a first identification to the at least one first mobile transceiver unit, the first identification providing an identity of the at least one first mobile transceiver unit; and
providing a second indication if a response to the periodic request for the first identification is not detected by the second mobile transceiver unit within a pre-selected time, the second indication indicating that the at least one first mobile transceiver unit has moved the predetermined distance from the second mobile transceiver unit. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification