Method for Determining the Orientation of an Orientation Indicator
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Accused Products
Abstract
According to the invention, a separation from at least one and an image of at least three reflective regions on the orientation indicator are recorded by a separation measurement sensor and an image sensor in a measuring device (1), for the purpose of determining the orientation of an orientation indicator. The separation measurement and image recording are achieved by means of a directed emission of a collimated first beam (2) and a divergent second beam (3) with differing wavelengths and/or polarisation in the direction of the orientation indicator and a simultaneous recording of the reflected and/or scattered first and second beams (2′,3′). The reflective regions on the orientation indicator are embodied and arranged such as to be positioned at a target point with a detectable geometric relationship to each other and to be simultaneously resolved by the image recorder. By means of the orientation determination, amongst other things, separations from target points, even not directly visible, can be precisely determined.
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Citations
42 Claims
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1-20. -20. (canceled)
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21. A method for determining the orientation of an orientation indicator using a measuring instrument having distance measuring sensors and image acquiring sensors, the method comprising the following acts:
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positioning the orientation indicator indirectly or directly at a target point where at least three reflecting segments;
resolving by the image acquiring sensors the at least three reflecting segments having a shape and arrangement defining a detectable mutual geometric relationship, wherein from the measuring instrument toward the orientation indicator, one reflecting segment simultaneously has a directional emission of a collimated beam measured by the distance measuring sensors and a divergent beam acquired by the image acquiring sensors, wherein the collimated beam differs in wavelength and/or polarization from the divergent beam; and
simultaneously;
capturing the collimated beam reflected and/or scattered by the reflecting segments;
capturing the divergent beam reflected and/or scattered by the reflecting segments;
determining the distance from the measuring instrument to at least one reflecting segment using the distance measuring sensors; and
determining the positions in space of the at least three reflecting segments using the image acquiring sensors. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An orientation indicator comprising:
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image acquiring sensors configured to detect a mutual geometric relationship of a three reflecting segments of a target point having at least three reflecting segments of such a shape and arrangement that they have a detectable mutual geometric relationship; and
distance measuring sensors configured to measure a distance to one reflecting segment simultaneously with the detection of the mutual geometric relationship by the image acquiring sensors, wherein the reflecting segments have a layout such that the segment used for measuring the distance can be distinguished from the other reflecting segments regardless of the relative positions of the reflecting segments. - View Dependent Claims (33, 34, 35, 36, 37, 38, 39, 40, 41, 42)
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Specification