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Obtaining data from a utility meter using image-based movement tracking

  • US 20060219863A1
  • Filed: 03/11/2005
  • Published: 10/05/2006
  • Est. Priority Date: 03/11/2005
  • Status: Abandoned Application
First Claim
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1. A power meter comprising:

  • a rotatable element that rotates in response to power consumption or power generation;

    a movement tracking system comprising;

    a light source configured to illuminate a spot on the rotatable element;

    an image sensor configured to capture image information related to the rotatable element in response to light that reflects off the illuminated spot on the rotatable element;

    a tracking engine configured to process the image information to track movement of the rotatable element and to output movement information; and

    conversion logic configured to generate digital power data in response to the movement information.

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