US-12624946-B2 - Surveying assistance device, surveying assistance system, surveying assistance method, and storage medium

US12624946B2US 12624946 B2US12624946 B2US 12624946B2US-12624946-B2

Abstract

A surveying assistance device is a computer configured to read design information including center point data of a center point set on a centerline of a route and constituent point data of constituent points set on a section including the center point, the section being orthogonal to the centerline, acquire position information indicating a current position of a surveyed device with a predetermined period, creates a plan view from the design information and display the plan view on a terminal screen unit, display the current position on the plan view and updates the display every time the position information is acquired, record the acquired position information in a storage as an observation data, and display reference lines indicating positions which are distant from the designated section backward and forward in a route direction by a preset distance limit on the plan view.

Inventors

Umihiro ICHIRIYAMA
Motohiro MIYAJIMA
Keisuke Nakamura
Ryosuke Shimizu

Assignees

TOPCON CORPORATION

Dates

Publication Date: 20260512
Application Date: 20230125
Priority Date: 20200731

Claims (14)

1 . A surveying assistance device comprising: a screen; a control unit including at least a processor and a memory; and a storage, wherein the processor is configured to read design information including center point data of a center point set on a centerline of a route and constituent point data of constituent points set on a section including the center point, the section being orthogonal to the centerline, acquire position information indicating a current position of a surveyed device with a predetermined period, create a plan view from the design information to display the plan view on the screen, display the current position of the surveyed device on the plan view and update the display of the current position every time the position information is acquired, record acquired position information in the storage as an observation value of a constituent point on a designated section; and display a reference line indicating a position that is distant from the designated section backward or forward in a route direction by a preset distance limit on the plan view.
2 . The surveying assistance device according to claim 1 , wherein the processor is configured to calculate a distance between the current position of the surveyed device and the designated section based on the position information and the design information; compare the distance with the distance limit; and in a case where the distance exceeds the distance limit, issue a warning that the surveyed device is distant from the designated section while exceeding the distance limit.
3 . The surveying assistance device according to claim 1 , wherein the processor is configured to calculate a distance between the current position of the surveyed device and the designated section based on the position information and the design information, compare the distance with the distance limit, and in a case where the distance exceeds the distance limit, not store the position information in the storage as the observation data.
4 . The surveying assistance device according to claim 1 , wherein the processor is configured to calculate a distance between the current position of the surveyed device and the designated section based on the position information and the design information, calculate a direction in which the distance between the current position and the designated section approximates zero, and guide a worker in the direction in which the distance approximates zero.
5 . The surveying assistance device according to claim 1 , wherein the processor is configured to calculate a longitudinal gradient based on the design information; compare a preset longitudinal gradient threshold value and the calculated longitudinal gradient; and issue a warning in a case where the longitudinal gradient is larger than the threshold value.
6 . A surveying assistance system comprising: a position acquiring device including a survey device and a surveyed device that acquires the current position of the surveyed device; and the surveying assistance device according to claim 1 , wherein the surveying assistance device is configured to capable of communicate with the position acquiring device to acquire the position information of the surveyed device.
7 . The surveying assistance system according to claim 6 wherein the survey device of the position acquiring device is a total station survey device and the surveyed device includes a light-reflective target.
8 . The surveying assistance system according to claim 6 wherein the survey device of the position acquiring device is a GNSS survey device capable of communicating with the surveying assistance device such that the surveyed device is the surveying device.
9 . A surveying assistance method performed by a computer including a processor, a memory, a screen, and a storage, the method comprising: reading design information including center point data of a center point set on a centerline of a route, and constituent point data of constituent points set on a section including the center point, the section being orthogonal to the centerline; acquiring position information indicating a current position of a surveyed device with a predetermined period; creating a plan view from the design information and displaying the plan view on the screen of the computer; displaying the current position of the surveyed device on the plan view and updating a display of the current position every time the position information is acquired; recording acquired position information in the storage as observation data; and displaying reference lines indicating positions which are distant from the designated section backward and forward in a route direction by a preset distance limit on the plan view.
10 . The surveying assistance method according to claim 9 , wherein the computer further performs the steps of: calculating a distance between the current position of the surveyed device and the designated section based on the position information and the design information; comparing the distance with the distance limit; and in a case where the distance exceeds the distance limit, issuing a warning that the surveyed device is distant from the designated section while exceeding the distance limit.
11 . The surveying assistance method according to claim 9 , wherein the computer further performs the steps of: calculating a distance between the current position of the surveyed device and the designated section based on the position information and the design information, comparing the distance with the distance limit, and in a case where the distance exceeds the distance limit, refraining from storing the position information in the storage as the observation data.
12 . The surveying assistance method according to claim 9 , wherein the computer further performs the steps of: calculating a distance between the current position of the surveyed device and the designated section based on the position information and the design information, calculating a direction in which the distance between the current position and the designated section approximates zero, and guiding a worker in the direction in which the distance approximates zero.
13 . The surveying assistance method according to claim 9 , wherein the computer further performs the steps of: calculating a longitudinal gradient based on the design information; comparing a preset longitudinal gradient threshold value and the calculated longitudinal gradient; and issuing a warning in a case where the longitudinal gradient is larger than the threshold value.
14 . A non-transitory computer-readable storage medium comprising a surveying assistance program that instructs a computer to: read design information including center point data of a center point set on a centerline of a route, and constituent point data of constituent points set on a cross-section including the center point, the cross-section being orthogonal to the centerline; acquire position information indicating a current position of a surveyed device with a predetermined period; create a plan view from the design information and display the plan view on a screen of the computer; display the current position on the plan view and update a display of the current position every time the position information is acquired; and record acquired position information in a storage of the computer as a measurement value of a point on a designated section, wherein the surveying assistance program makes the computer: display reference lines indicating positions which are distant from the designated section backward and forward in a route direction by a preset distance limit on the plan view displayed on the screen.

Description

CROSS-REFERENCE TO RELATED APPLICATION, BENEFIT CLAIM, AND INCORPORATION BY REFERENCE This application is a continuation application of and claims benefit under 35 USC 120 and 365 (c) to copending International Application No. PCT/JP2021/028138, entitled “SURVEYING ASSISTANCE PROGRAM, SURVEYING ASSISTANCE DEVICE, SURVEYING ASSISTANCE METHOD, AND SURVEYING ASSISTANCE SYSTEM”, filed 29 Jul. 2021, the content of which is incorporated herein in its entirety by reference. TECHNICAL FIELD The present invention relates to a surveying assistance device, a surveying assistance system, a surveying assistance method, and a storage medium. BACKGROUND ART In construction of a linear structure such as a route, a construction plan drawing is prepared, and a construction plan is drawn up while considering a volume of soil of cutting and banking. Route survey includes cross-sectional observation in which a height difference (vertical distance) between a point on a cross-section orthogonal to a route and a center point on the cross-section is surveyed and a shape of the cross-section is observed. In route survey, in recent years, a method in which by using an electro-optical device such as a total station or a GNSS survey device, with a target or a GNSS receiver used as a surveyed device respectively, a worker holds the surveyed device, moves between observation points, and acquires necessary observation point data is used. Further, in the method described above, a surveying assistance system for which design information including data of constituent points serving as the observation points is read by a mobile information processing device, and a plan view, a cross-sectional view, and numerical information are displayed on a display unit is proposed. (See Patent Literature 1, Non-Patent Literature 1, etc.) CITATION LIST Patent Literature Patent Literature 1: Specification of Japanese Patent No. 6224659 Non-Patent Literature Non-Patent Literature 1: Operation Manual for Data Collector FC-500 Kantoku-san. V, TOPKON CORPORATION, 2. Observation, p. 6-11, p. 42-51 SUMMARY OF INVENTION Technical Problem In cross-sectional observation, as a cross-section (cross-sectional line) set in design information is not actually indicated by a line, etc. at a site, a worker cannot recognize whether a position to be measured by himself/herself is on the set cross-section. Therefore, in a place where a gradient is steep in a route direction, there is sometimes a case where a critical height difference is caused by distance from a set section. Specifically, at a site as illustrated in FIG. 1, in the vicinity of a section No. 0 set in a place where a gradient in the route direction is gradual, even when being distant from the section in the route direction slightly (for example, by an amount of a distance d1), a vertical distance d2 from a center point CP0 to be measured does not differ greatly from a vertical distance d3 to be measured originally. However, in a place where a gradient in the route direction is steep as in a section No. 2, even when a distance from the section No. 2 is the same distance d1, a fatal error is generated between a vertical distance d4 from a center point CP2 to be measured and a vertical distance d5 to be measured originally. The present invention was made in view of the above circumstances, and an object thereof is to prevent a distance error from a section in cross-sectional observation by making a worker visually recognize distance from the section. Solution to Problem In order to achieve the object described above, a surveying assistance device according to an aspect of the present invention includes a screen, a control unit including at least a processor and a memory, and a storage. The processor is configured to read design information including center point data of a center point set on a centerline of a route and constituent point data of constituent points set on a section including the center point, the section being orthogonal to the centerline, acquire position information indicating a current position of a surveyed device with a predetermined period, create a plan view from the design information to display the plan view on the screen, display the current position of the surveyed device on the plan view and update the display of the current position every time the position information is acquired, record the acquired position information in the terminal storage as an observation value of a constituent point on a designated section; and display reference lines indicating positions which are distant from the designated section backward and forward in a route direction by a preset distance limit on the plan view. In the aspect described above, it is also preferable that the processor is configured to calculate a distance between the current position of the surveyed device and the designated section based on the position information and the design information, compare the distance with the distance limit, and