Transmit power scaling method and system to detect occurrences using geographically distributed sensors
First Claim
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1. A method, comprising:
- receiving, by a processor unit and from a first sensor unit, a first signal indicative of an occurrence of an event;
determining, by the processor unit, a level of confidence that the event occurred based on the first signal;
receiving, by the processor unit and from a second sensor unit, a second signal indicative of the occurrence of the event;
adjusting, by the processor unit, the level of confidence based on a signal strength of the second signal from the second sensor unit;
establishing, by the processor unit, a signal transmit power level for a third signal, from the first sensor unit, that corresponds to the adjusted level of confidence; and
causing, by the processor unit, the first sensor unit to transmit the third signal from the first sensor unit to a neighbor sensor unit at the established signal transmit power level, thereby enabling the first sensor unit to perform as a beacon and communicate the occurrence of the event as a warning to one of a user or a vehicle located in a boundary region of the occurred event.
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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.
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Citations
20 Claims
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1. A method, comprising:
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receiving, by a processor unit and from a first sensor unit, a first signal indicative of an occurrence of an event; determining, by the processor unit, a level of confidence that the event occurred based on the first signal; receiving, by the processor unit and from a second sensor unit, a second signal indicative of the occurrence of the event; adjusting, by the processor unit, the level of confidence based on a signal strength of the second signal from the second sensor unit; establishing, by the processor unit, a signal transmit power level for a third signal, from the first sensor unit, that corresponds to the adjusted level of confidence; and causing, by the processor unit, the first sensor unit to transmit the third signal from the first sensor unit to a neighbor sensor unit at the established signal transmit power level, thereby enabling the first sensor unit to perform as a beacon and communicate the occurrence of the event as a warning to one of a user or a vehicle located in a boundary region of the occurred event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A system, comprising:
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a first sensor unit configured to generate a first signal indicative of an occurrence of an event; a transceiver configured to receive, from a second sensor unit, a second signal indicative of the occurrence of the event; and a processor unit coupled to the first sensor unit and the transceiver, and configured to; receive the first signal from the first sensor unit; determine a strength of the first signal, wherein the strength of the first signal is indicative of a boundary region of the occurred event; determine a level of confidence that the event occurred based on the strength of the first signal; determine a strength of the second signal, wherein the strength of the second signal is indicative of the boundary region of the occurred event; adjust the level of confidence based on the strength of the second signal from the second sensor unit; establish a signal transmit power level for a third signal, from the first sensor unit, that corresponds to the adjusted level of confidence; and cause the first sensor unit to transmit the third signal, from the first sensor unit to a neighbor sensor unit, at the established signal transmit power level, thereby to enable the first sensor unit to perform as a beacon and communicate the occurrence of the event as a warning to one of a user or a vehicle located in the boundary region of the occurred event. - View Dependent Claims (16, 17)
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18. A non-transitory computer-readable medium that stores executable instructions that, in response to execution, cause one or more processors to perform or control performance of operations to:
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detect, from a first sensor unit, a first signal indicative of an occurrence of an event; determine a level of confidence that the event occurred based on the first signal; detect, from a second sensor unit, a second signal indicative of the occurrence of the event; adjust the level of confidence based on a signal strength of the second signal from the second sensor unit; establish a signal transmit power level for a third signal, from the first sensor unit, that corresponds to the adjusted level of confidence; and cause the first sensor unit to transmit the third signal, from the first sensor unit to a neighbor sensor unit, at the established signal transmit power level, thereby to enable the first sensor unit to perform as a beacon and communicate the occurrence of the event as a warning to one of a user or a vehicle located in a boundary region of the occurred event. - View Dependent Claims (19, 20)
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Specification