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Detected position correcting method

  • US 5,319,443 A
  • Filed: 10/16/1992
  • Issued: 06/07/1994
  • Est. Priority Date: 03/07/1991
  • Status: Expired due to Term
First Claim
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1. A method of correcting data of an object detected by a sensor to determine a position of the object, comprising the steps of:

  • determining first calibration data according to a calibration process carried out between the coordinate system of a movable component and the coordinate system of a sensor mounted on said movable component;

    recognizing the position and attitude of said sensor before the sensor moves, when said calibration process is carried out;

    recognizing the position and attitude of said sensor after the sensor is moved by said movable component;

    determining a distance by which the position and attitude of said sensor has moved, from the positions and attitudes of said sensor before and after the sensor moves;

    determining second calibration data for said sensor after the sensor is moved, based on said distance and said first calibration data; and

    determining the position of the object based on said second calibration data and data of the object detected by said sensor after the sensor is moved.

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