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Methods and apparatus to detect and warn proximate entities of interest

  • US 9,633,537 B2
  • Filed: 01/30/2015
  • Issued: 04/25/2017
  • Est. Priority Date: 07/27/2010
  • Status: Active Grant
First Claim
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1. A method comprising:

  • receiving a classification of predetermined threat levels of different zones within a building, the predetermined threat levels to include at least one of a first predetermined threat level and a second predetermined threat level;

    associating a first detectable indicator with a first zone of a plurality of different zones having the first predetermined threat level;

    associating a second detectable indicator with a second zone of the plurality of different zones having the second predetermined threat level; and

    providing a vehicle capable of moving between the first and second zones, the vehicle capable of detecting, via a detector, at least one of the first detectable indicator or second detectable indicator.

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