| 摘要 |
A surveying system is provided to allow laser beam of a laser survey unit to transmit through a transparent window without obstruction by washing the transparent window with a washer. A surveying system includes a pile(10), a main survey unit(20), a detector(30), a washer, and a wireless terminal. The pile is fixed down to a hard foundation exposing the upper part thereof over the ground. The main survey unit is installed on the pile and generates laser beams for survey. The detector is installed on the upper part of a reference point(3) and receives the laser beam from the main survey unit for calculating a received position of the laser beam. The washer is installed on the main survey unit and the detector and washes transparent windows of the main survey unit and the detector. The wireless terminal communicates with the main survey unit. |
