公开(公告)号：US10895456B1

公开(公告)日：2021-01-19

申请号：US16923135

申请日：2020-07-08

Applicant: Topcon Corporation

Inventor： Keisuke Nakamura ,  Yoshihiro Nishi

IPC: G01C3/04 ,  G01C15/00

Abstract: A three-dimensional survey apparatus includes a collimating ranging unit, a scanner unit, and a control calculation portion. The control calculation portion stores coordinates of a machine reference point of the collimating ranging unit and a direction of a reference collimation of a telescope portion, stores first point group data, stores a direction of a first collimation of the telescope portion oriented from the movement source position toward a movement destination position, stores a direction of a second collimation of the telescope portion oriented from the movement destination position toward the movement source position and a movement distance, calculates and stores coordinates of the machine reference point at the movement destination position with the survey start position as a reference based on the direction of the first collimation, the direction of the second collimation, and the movement distance, and stores second point group data.

公开(公告)号：US11808571B2

公开(公告)日：2023-11-07

申请号：US17443250

申请日：2021-07-22

Applicant: Topcon Corporation

Inventor： Ryosuke Shimizu ,  Umihiro Ichiriyama ,  Motohiro Miyajima ,  Keisuke Nakamura

IPC: G01C15/00 ,  G01C15/06

CPC classification number: G01C15/002 ,  G01C15/06

Abstract: A surveying system including a surveying device and a terminal device for assisting in placement of a staking tool. The surveying system further includes: a design information acquisition unit for acquiring design information including a designed slope; a surveying information acquisition unit for transmitting surveying information to a terminal device; a current state estimation unit for calculating an estimated altitude of a current ground in accordance with the surveying information; an intersection calculation unit for calculating a coordinate of an intersection between the current ground and the designed slope based on the estimated altitude of the current ground and the design information; a stake shape determination unit for determining a shape of a stake to be placed; and a stake shape information unit for causing the terminal device to inform of the shape of the stake determined by the stake shape determination unit.

公开(公告)号：US12140428B2

公开(公告)日：2024-11-12

申请号：US18116407

申请日：2023-03-02

Applicant: TOPCON CORPORATION

Inventor： Ryosuke Shimizu ,  Motohiro Miyajima ,  Umihiro Ichiriyama ,  Keisuke Nakamura

IPC: G06F3/0482 ,  G01C15/02 ,  G06F3/0484 ,  G06F3/0488

Abstract: Provided is a surveying assistance method comprising making a computer read design information including center point data of center points set on a centerline of a route and constituent point data of constituent points set on sections including the center points, the section being orthogonal to the centerline, acquires position information indicating a current position of a surveyed device at a predetermined period, calculate a horizontal distance and a vertical distance between the current position and a reference point on a designated section based on the position information and the design information, display the horizontal distance and the vertical distance on a screen of the computer as survey information, and update the display at intervals of the predetermined period, and the reference point is a point to be selected from the center points or the constituent points.