公开(公告)号：US20230316181A1

公开(公告)日：2023-10-05

申请号：US18192695

申请日：2023-03-30

Applicant: TOPCON CORPORATION

Inventor： Kaoru KUMAGAI ,  Naoki SHOJI ,  Takeshi SASAKI

IPC: G06Q10/0631 ,  G06Q50/08 ,  E02F9/26

CPC classification number: G06Q10/06312 ,  G06Q50/08 ,  E02F9/261

Abstract: There is provided a work result information acquisition device or the like capable of acquiring work result information automatically and accurately. The work result information acquisition device includes a tracking part which tracks a movable body, a scanning part which acquires three-dimensional point cloud information on an object, a movable body movement information acquisition part which acquires movable body movement information, which is movement information of the movable body by tracking, by the tracking part and stores the movable body movement information, and a work area information generation part which generates work area information on the object, based on the movable body movement information, and three-dimensional work result information of the work area information is generated by scanning, based on the work area information.

公开(公告)号：US20230015894A1

公开(公告)日：2023-01-19

申请号：US17812163

申请日：2022-07-12

Applicant: TOPCON CORPORATION

Inventor： Masae MATSUMOTO ,  Naoki SHOJI ,  Jun ABE

IPC: G01S17/26 ,  G01S17/36 ,  G01S7/487

Abstract: The light wave distance meter is disclosed, including: a distance measuring light-emitting unit; a light-receiving signal generating unit; and a control arithmetic unit. A light-receiving signal includes a first intermittent light-receiving signal corresponding to a first distance measuring light, a second intermittent light-receiving signal corresponding to a second distance measuring light, a third intermittent light-receiving signal corresponding to a third distance measuring light, and a fourth intermittent light-receiving signal corresponding to a fourth distance measuring light. The control arithmetic unit executes an error determination control to acquire a shift signal generated by shifting at least a phase of any one of the first to fourth intermittent light-receiving signals by 2π·n−π/2 or 2π·n+π/2, and compares the phase of the shift signal and the phase of the intermittent light-receiving signal at least between either the first frequencies or between the second frequencies.

公开(公告)号：US20230175844A1

公开(公告)日：2023-06-08

申请号：US17995754

申请日：2021-03-30

Applicant: TOPCON CORPORATION

Inventor： Naoki SHOJI ,  Fumio OTOMO

IPC: G01C9/02 ,  G01S17/08 ,  G01C15/00

CPC classification number: G01C9/02 ,  G01S17/08 ,  G01C15/008

Abstract: An inclination sensor that can accurately detect an inclination angle with respect to a horizontal direction while suppressing drift in output values from an acceleration sensor and a data acquisition device including the inclination sensor are described. The inclination sensor includes a gimbal mechanism that is rotatably supported around a first shaft and a second shaft, a first motor that rotates the first shaft, a second motor that rotates the second shaft, a first encoder that detects a rotation angle of the first shaft, a second encoder that detects a rotation angle of the second shaft, an acceleration sensor that is disposed in the gimbal mechanism, and a control unit that arithmetically determines the inclination angle with respect to the horizontal direction.

公开(公告)号：US20220307646A1

公开(公告)日：2022-09-29

申请号：US17655548

申请日：2022-03-19

Applicant: Topcon Corporation

Inventor： Fumitoshi KASAHARA ,  Fumio OHTOMO ,  Naoki SHOJI ,  Masae MATSUMOTO ,  Jun ABE

IPC: F16M11/12 ,  F16M11/18 ,  G01C15/00

Abstract: The inclination sensor includes a gimbal mechanism rotatably supported around a first shaft and a second shaft, a first motor, a second motor, an acceleration sensor disposed in the gimbal mechanism with an origin point of coordinate axes being coincident with a point of intersection of a shaft center of the first shaft and a shaft center of the second shaft, and a control unit that simultaneously rotates the first shaft and the second shaft to continuously rotate the acceleration sensor around the first shaft and the second shaft and applies frequency analysis to the output values from the acceleration sensor to arithmetically determine the inclination angle with respect to the horizontal direction.

公开(公告)号：US20200309951A1

公开(公告)日：2020-10-01

申请号：US16829471

申请日：2020-03-25

Applicant: Topcon Corporation

Inventor： Naoki SHOJI

IPC: G01S17/34

Abstract: A light wave distance meter according to the present invention includes: a light-emitting element that emits a distance measurement light; a light-receiving element that outputs a light-receiving signal; a frequency conversion unit that includes a bandpass filter; an arithmetic control unit that computes a distance value to a measurement object; a signal generator that generates a signal having a predetermined frequency; a waveform conversion unit that generates a waveform conversion signal; pulse generators that generate pulse signals by pulsating the signal having a predetermined frequency so as to have a waveform profile of a signal constituted of desired frequency components on the basis of the signal output from the signal generator and the waveform conversion signal output from the waveform conversion unit; and a drive unit that emits the distance measurement light based on the pulse signals.