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Image based surveillance system

  • US 10,365,260 B2
  • Filed: 12/29/2014
  • Issued: 07/30/2019
  • Est. Priority Date: 12/29/2014
  • Status: Active Grant
First Claim
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1. A method for indicating status of a plurality portable gas detectors, the method comprising:

  • receiving sensed gas data, device information, and a geographic location from each of the plurality of portable gas detectors;

    depicting on a display i) a map of a predetermined geographic area and ii) a plurality of gas detector icons on the map, wherein the plurality of gas detector icons correspond to a geographic location for each of the plurality of portable gas detectors which are within the predetermined geographic area;

    identifying a number of gas detectors of the plurality of portable gas detectors which are within a predetermined portion of the area depicted on the display; and

    based on the number of gas detectors exceeding a threshold value within the predetermined portion of the area, replacing, on the display, the icons of the number of gas detectors identified within the predetermined portion of the area with a group icon and an alarm status icon directly adjacent the group icon,wherein the group icon indicates a numerical value for the number of gas detectors identified, andwherein the alarm status icon indicates a numerical value for the number of gas detectors identified which are in alarm.

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