公开(公告)号：US20190063922A1

公开(公告)日：2019-02-28

申请号：US16044635

申请日：2018-07-25

Applicant: TOPCON Corporation

Inventor： Fumio Ohtomo ,  Kaoru Kumagai ,  Satoshi Yanobe

IPC: G01C15/00 ,  G01C15/06 ,  G01C1/00 ,  G01C3/08

Abstract: A surveying system comprising a rover having an illuminating lamp for emitting an illumination light, a second azimuth indicator for detecting an azimuth angle of an optical axis of the illumination light, a surveying instrument comprises a surveying instrument main body and a rotary driving unit capable of rotating the surveying instrument main body in at least a left-and-right direction, wherein the surveying instrument main body comprises a first azimuth indicator for detecting an azimuth angle of a reference optical axis, and as arithmetic control module, and wherein the arithmetic control module is configured to calculate the azimuth angle of the reference optical axis which is in parallel or approximately parallel with the optical axis of the illumination light based on the azimuth angle of the optical axis of the illumination light received from the rover and the azimuth angle of the reference optical axis.

公开(公告)号：US10139224B2

公开(公告)日：2018-11-27

申请号：US15296328

申请日：2016-10-18

Applicant: TOPCON Corporation

Inventor： Masaki Kamiki ,  Goro Iwasaki ,  Shinji Yamaguchi ,  Satoshi Yanobe ,  Eiji Takeuchi ,  Yosuke Okudaira

IPC: G01C9/06 ,  G01C9/20 ,  G01C15/00

Abstract: The present invention provides a measuring device, which comprises a leveling unit, a measuring device main body provided on the leveling unit, a control unit, a first tilt angle measuring device for detecting a horizontality with high accuracy, and a second tilt angle measuring device for detecting a tilt angle in a wider range than a range of the first tilt angle measuring device and having a higher responsiveness than a responsiveness of the first tilt angle measuring device, wherein the control unit, the first tilt angle measuring device and the second tilt angle measuring device are provided in the measuring device main body and wherein the control unit drives the leveling unit based on a detection result of the second tilt angle measuring device, performs a rough leveling until a tilt angle detected by the second tilt angle measuring device reaches within a range in which the first tilt angle measuring device is capable of detecting and levels the measuring device main body horizontally based on a detection result of the first tilt angle measuring device.