Measuring method and measuring instrument
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United States of America Patent
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Dec 9, 2014
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app pub date -
Jul 14, 2011
filing date -
Sep 30, 2010
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Abstract
The invention provides a measuring method for performing monitoring measurement on a plurality of measuring points by using a measuring instrument, which comprises a telescope unit, a distance measuring unit, an image sensor, angle detecting units for detecting a directional angle in sighting direction, and an arithmetic unit. The monitoring measurement comprises a coarse monitoring measurement for acquiring a digital image in measuring direction and for performing angle measurement on the measuring point, and a precise monitoring measurement for performing sighting of the measuring point by the telescope unit and for performing distance measurement and angle measurement, and wherein the coarse monitoring measurement is executed on each of the measuring points, a deviation of a result of the coarse measurement by the coarse monitoring measurement from the initial value is determined, and the precise monitoring measurement is executed on the measuring point where the deviation exceeds a first threshold value.
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