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Power management in hazard detection systems

  • US 9,244,474 B2
  • Filed: 07/17/2014
  • Issued: 01/26/2016
  • Est. Priority Date: 07/18/2013
  • Status: Active Grant
First Claim
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1. A battery powered hazard detection system, the system operative to function according to any one of a plurality of different modes, the system comprising:

  • a DC power source; and

    a plurality of power-consuming components operative to consume power supplied by the DC power source, the power-consuming components comprising at least one processor, at least one sensor for detecting at least one of smoke, heat, and carbon-monoxide, first wireless communications circuitry characterized by relatively low power consumption and configured to wirelessly communicate according to a first protocol characterized by relatively low data rates, and second wireless communications circuitry characterized by relatively high power consumption and configured to wirelessly communicate according to a second protocol characterized by relatively high data rates;

    wherein at least one of the power consuming components is operative to enforce a power budgeting scheme so that the DC power source can power the system for a minimum operational lifetime, wherein the power budgeting scheme enables the system to operate according to any one of a plurality of different modes for a mode-specified run-time constraint during the minimum operational lifetime.

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