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.

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.