Transmit power scaling method and system to detect occurrences using geographically distributed sensors
First Claim
1. A non-transitory computer-readable medium that includes instructions stored thereon, the instructions, in response to execution by a processor unit, operatively enable the processor unit to:
- identify an occurrence based on a measurement by a first sensor unit;
make a determination about a level of confidence that the occurrence relates to an event being monitored;
identify a first signal from a second sensor unit, wherein the first signal from the second sensor unit is indicative of the occurrence based on a measurement by the second sensor unit;
determine a signal strength of the first signal from the second sensor unit;
adjust the level of confidence based on the signal strength of the first signal from the second sensor unit;
establish a signal transmit power level for a first signal from the first sensor unit that corresponds to the adjusted level of confidence, wherein the first signal from the first sensor unit is to be transmitted to neighbor sensor units, and wherein a signal strength of the first signal from the first sensor unit is based at least in part on the signal transmit power level; and
control the first sensor unit to transmit the first signal from the first sensor unit at the established signal transmit power level.
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Accused Products
Abstract
Sensors within sensor node networks may communicate bio-event or other types of measurement results/decisions between each other using signal transmission variations. Each sensor node within a network and between networks may transmit and receive signals. A sensor node may scale a signal transmission power in a manner that is proportional to a confidence level of a decision or measurement about an event being detected. Each sensor node will receive transmissions from neighboring nodes, and can refine an estimate about an occurrence of the event at its location based on received signal strengths, for example.
2 Citations
24 Claims
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1. A non-transitory computer-readable medium that includes instructions stored thereon, the instructions, in response to execution by a processor unit, operatively enable the processor unit to:
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identify an occurrence based on a measurement by a first sensor unit; make a determination about a level of confidence that the occurrence relates to an event being monitored; identify a first signal from a second sensor unit, wherein the first signal from the second sensor unit is indicative of the occurrence based on a measurement by the second sensor unit; determine a signal strength of the first signal from the second sensor unit; adjust the level of confidence based on the signal strength of the first signal from the second sensor unit; establish a signal transmit power level for a first signal from the first sensor unit that corresponds to the adjusted level of confidence, wherein the first signal from the first sensor unit is to be transmitted to neighbor sensor units, and wherein a signal strength of the first signal from the first sensor unit is based at least in part on the signal transmit power level; and control the first sensor unit to transmit the first signal from the first sensor unit at the established signal transmit power level. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system to transmit at a transmit power level, comprising:
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a sensor unit configured to make a measurement indicative of an occurrence; a transceiver configured to receive and transmit wireless signals, wherein the transceiver is configured to receive, from a neighbor sensor unit, a first signal indicative of a respective measurement by the neighbor sensor unit of the occurrence; and a processor unit coupled to the sensor unit and the transceiver and configured to receive the measurement from the sensor unit and make a determination about a level of confidence that the occurrence relates to an event being monitored, the processor unit configured to adjust the level of confidence based on a signal strength of the first signal received from the neighbor sensor unit, and the processor unit configured to establish a signal transmit power level of the transceiver to correspond to the adjusted level of confidence and configured to control the transceiver to transmit a second signal at a power level corresponding to the established signal transmit power level. - View Dependent Claims (15, 16, 17, 18)
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19. A method to detect occurrences using geographically distributed sensors, comprising:
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making, by a sensor, measurements indicative of an occurrence; making, by the sensor, a determination about a level of confidence that the occurrence relates to an event being monitored; transmitting, by the sensor, a signal with a power level that corresponds to the level of confidence determined by the sensor; receiving, at the sensor, a signal transmitted by another sensor; determining, at the sensor, a signal strength of the received signal; adjusting, at the sensor, the level of confidence that the occurrence relates to the event being monitored based on the signal strength of the received signal; and transmitting, from the sensor to neighbor sensors, the signal with a power level that corresponds to the adjusted level of confidence determined by the sensor. - View Dependent Claims (20, 21, 22, 23, 24)
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Specification