| 摘要 |
The present invention provides a surveying system, which comprises a survey instrument main unit for receiving and detecting a guide light projected from a collimation target, a horizontal rotating mechanism 38 for rotating the survey instrument main unit in a horizontal direction, a control unit 37 for controlling the horizontal rotating mechanism, a rough direction detecting unit 24 capable to detect the guide light from all horizontal directions, and a precise direction detecting unit 25 arranged in a direction to collimate the survey instrument main unit from a telescope and detects said guide light only in a range of a predetermined angle, wherein said control unit controls the horizontal rotating mechanism so that a direction of the survey instrument main unit is aligned to the collimation target based on a result of a detection from said rough direction detecting unit, and collimates the survey instrument main unit is collimated to the collimation target based on a result of a detection from the precise direction detecting unit.
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