Surveying Instrument And Method For Assembling Total Station And Two-Dimensional Laser Scanner

A surveying instrument comprising:

• a total station, a mounting base which is fixed on an upper surface of said total station at three points, and a two-dimensional laser scanner which is fixed on an upper surface of said mounting base at three points, wherein said total station comprises a horizontal rotation driving unit for horizontally rotating said total station around a vertical axis as a center, a horizontal rotation detector for detecting a horizontal angle of said total station, a telescope unit incorporating a first distance measuring component for sighting a predetermined measuring point, emitting a first distance measuring light, and performing a distance measurement, a first vertical rotation driving unit for vertically rotating said telescope unit around a horizontal axis as the center, a first vertical angle detector for detecting a vertical angle of said telescope unit, and a control module, wherein said control module is configured to perform a three-dimensional measurement of said measuring point based on a distance measurement result, a detection result of said horizontal rotation detector, and a detection result of said first vertical angle detector, wherein said two-dimensional laser scanner comprises a base, a second distance measuring component which is provided on said base for emitting the second distance measuring light, and performing said distance measurement, a scanning mirror for deflecting said second distance measuring light within a vertical plane, a second vertical rotation driving unit for vertically rotating said scanning mirror around a horizontal axis as the center, and a second vertical angle detector for detecting a vertical angle of said scanning mirror, wherein said second distance measuring light is scanned by said scanning mirror, and point cloud data is acquired along a scanning line.