Patent ID: 7610687
Filing Date: 2009-11-03
Classification: E02F,G01S

Abstract:
1. A method for determining an item of horizontal attitude information of at least one object to be oriented highly precisely with respect to a height reference surface using at least one rotating laser, comprising a rotating unit and a laser source for emission of laser radiation substantially parallel in the vertical direction in a rotating, horizontal emission direction, so that the laser radiation defines a highly precise height reference surface for the object, the laser radiation carrying an item of angle-dependent information from which the emission direction can be derived, so that the emission direction is associated with the direction of the rotating laser to the object which receives the laser radiation, comprising the acts: emission of the laser radiation by the rotating laser; first reception of the laser radiation by a first detector of the object; second reception of the laser radiation at the object in a defined horizontal position away from the position during the first reception of the laser radiation; height orientation of at least one component of the object with the laser radiation; derivation of a first emission direction of the laser radiation received by the first detector during the first reception and derivation of a second emission direction of the laser radiation received during the second reception, the derivation being effected at least once from the angle-dependent information; and derivation of the distance or horizontal position of the object relative to the position of the rotating laser from a knowledge of the first emission direction, of the second emission direction, and of the positional difference during the second reception relative to the first reception; wherein: