# US 2022/0034656 A1 · Surveying system, staking assistance method, and storage medium storing staking assistance program

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- Number: US 2022/0034656 A1
- Document ID: US20220034656A1
- Status: Published application
- Kind: A1
- Application number: 17/443,250
- Filed: 2021-07-22
- Published: 2022-02-03
- Earliest claimed: 2020-07-28
- Assignees: Topcon Corporation
- Applicants: Topcon Corporation
- Inventors: Ryosuke SHIMIZU; Umihiro ICHIRIYAMA; Motohiro MIYAJIMA; Keisuke NAKAMURA
- Web page: https://patentgrep.com/patent/US20220034656A1

## CPC

- G01C 9/00: Measuring inclination, e.g. by clinometers, by levels
- G01C 15/002: {Active optical surveying means (optical plumbing G01C15/105)}
- E02D 17/18: Making embankments, {e.g. dikes, dams}(E02D17/20 takes precedence; {foundations for dams E02D27/40})
- G01C 15/004: {Reference lines, planes or sectors}
- G01C 15/06: Surveyors' staffs; Movable markers
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- E02D: FOUNDATIONS; EXCAVATIONS; EMBANKMENTS (specially adapted for hydraulic engineering E02B); UNDERGROUND OR UNDERWATER STRUCTURES {(tunnels, tunnelling, mining E21)}

## 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.

## Claims

### Claim 1

A surveying system for assisting placement of a staking tool including a picket, a crossbeam, and a slope beam, the surveying system comprising, in addition to a surveying device and a terminal device:
a design information acquisition unit configured to acquire design information including a designed slope;
a surveying information acquisition unit configured to transmit, to the terminal device, surveying information on surveying by the surveying device;
a current state estimation unit configured to calculate an estimated altitude of a current ground in accordance with the surveying information received by the terminal device;
an intersection calculation unit configured to calculate 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 including the designed slope;
a stake shape determination unit configured to determine a shape of a stake to be placed, based on the surveying information and the coordinate of the intersection; and
a stake shape information unit configured to cause the terminal device to inform of the shape of the stake determined by the stake shape determination unit.

### Claim 2 (depends on 1)

The surveying system of claim 1, wherein
the stake shape information unit causes the terminal device to display an image corresponding to the shape of the stake.

### Claim 3 (depends on 1)

The surveying system of claim 1, wherein
the stake shape information unit causes an audio output unit of the terminal device to output the shape of the stake.

### Claim 4 (depends on 1)

The surveying system of claim 1, wherein
the stake shape information unit causes the terminal device to inform of an order of arranging the picket, the crossbeam, and the slope beam constituting the staking tool corresponding to the shape of the stake.

### Claim 5

A staking assistance method of assisting placement of a staking tool including a picket, a crossbeam, and a slope beam using a surveying system including a surveying device and a terminal device, the method comprising:
acquiring design information including a designed slope, using a design information acquisition unit;
surveying using the surveying device;
transmitting, to the terminal device, surveying information on the surveying, using a surveying information acquisition unit;
calculating an estimated altitude of a current ground in accordance with the surveying information received in the surveying information acquisition, using a current state estimation unit;
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 including the designed slope, using an intersection calculation unit;
determining a shape of a stake to be placed, based on the surveying information and the coordinate of the intersection, using a stake shape determination unit; and
stake shape information of causing the terminal device to inform of the shape of the stake determined in the stake shape determination, using a stake shape information unit.

### Claim 6

A storage medium storing a staking assistance program for assisting placement of a staking tool including a picket, a crossbeam, and a slope beam using a surveying system including a surveying device and a terminal device, the program configured to cause a computer to execute steps comprising:
acquiring design information including a designed slope, using a design information acquisition unit;
surveying using the surveying device;
transmitting, to the terminal device, surveying information on the surveying, using a surveying information acquisition unit;
calculating an estimated altitude of a current ground in accordance with the surveying information received in the surveying information acquisition, using a current state estimation unit;
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 including the designed slope, using an intersection calculation unit;
determining a shape of a stake to be placed, based on the surveying information and the coordinate of the intersection, using a stake shape determination unit; and
causing the terminal device to inform of the shape of the stake determined in the stake shape determination, using a stake shape information unit.