SENSOR DEVICE WITH PERSISTENT LOW POWER BEACON
First Claim
1. A method comprising:
- determining, by a first device, that remaining capacity of a battery is less than a threshold;
subsequent to the determining, detecting stimulus by a sensor; and
periodically transmitting, by a transmitter, a beacon signal subsequent to detection of the stimulus.
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Accused Products
Abstract
One disclosed method involves providing a first device comprising a sensor configured to sense a stimulus experienced by the first device, a controller configured to process data received from the sensor and thereby obtain processed sensor data, a transmitter configured to wirelessly transmit the processed data, and a battery configured to supply power to at least the controller and the transmitter. The first device is operated in a first operational mode in which the sensor, the controller, and the transmitter are used at least occasionally to obtain and transmit processed data. When the battery is in a low power condition, the first device is operated in a second operational mode wherein the sensor, controller, and transmitter are not used to obtain and transmit processed sensor data, but wherein the first device at least occasionally transmits a signal that indicates a low power condition of the battery.
9 Citations
20 Claims
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1. A method comprising:
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determining, by a first device, that remaining capacity of a battery is less than a threshold; subsequent to the determining, detecting stimulus by a sensor; and periodically transmitting, by a transmitter, a beacon signal subsequent to detection of the stimulus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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a controller; a transmitter; and a memory storing instructions, wherein the memory and the instructions are configured to, along with the controller, cause the apparatus at least to perform; determining that remaining capacity of a battery is less than a threshold; and periodically transmitting, by the transmitter, a beacon signal subsequent to detection of stimulus by a sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A memory storing instructions that, when processed by a controller, are configured to cause an apparatus at least to perform:
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determining that remaining capacity of a battery is less than a low power threshold; subsequent to the determining, detecting stimulus; and periodically transmitting a beacon signal subsequent to detection of the stimulus. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification