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System and method for measuring movement of objects

  • US 6,122,960 A
  • Filed: 12/16/1998
  • Issued: 09/26/2000
  • Est. Priority Date: 12/12/1995
  • Status: Expired due to Term
First Claim
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1. A system for measuring a speed and distance of a moving object over a plurality of measurement cycles, said system comprising:

  • a plurality of accelerometers and rotational sensors disposed in said object, said accelerometers configured so as to provide acceleration signals corresponding to accelerations associated with a movement of said object during said plurality of measurement cycles, said rotational sensors configured so as to provide substantially small angular signals corresponding to substantially small incremental angles, designated as angle dθ

    , of said object about an axis of a three dimensional coordinate system wherein the cosine value of said angle dθ

    is substantially equal to unity and the sine value of said angle dθ

    is substantially equal to said angle dθ

    ; and

    a processing system coupled to said accelerometers and said rotational sensors configured so as to receive said acceleration signals and said angular signals corresponding to said substantially small incremental angles dθ

    , said processing system adapted to measure a distance traversed and the speed of said object during each of said measurement cycles, wherein each measurement cycle begins when said object has a constant velocity.

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