US 12,352,575 B2
Survey method, mobile terminal, survey system, and storage medium
Umihiro Ichiriyama, Tokyo (JP); Ryosuke Shimizu, Tokyo (JP); Yoshihiro Nishi, Tokyo (JP); Motohiro Miyajima, Tokyo (JP); and Keisuke Nakamura, Tokyo (JP)
Assigned to TOPCON CORPORATION, Tokyo (JP)
Filed by TOPCON CORPORATION, Tokyo (JP)
Filed on Sep. 8, 2022, as Appl. No. 17/940,488.
Application 17/940,488 is a continuation in part of application No. PCT/JP2021/008425, filed on Mar. 4, 2021.
Claims priority of application No. 2020-044481 (JP), filed on Mar. 13, 2020.
Prior Publication US 2023/0003527 A1, Jan. 5, 2023
Int. Cl. G01C 21/00 (2006.01); G01C 15/00 (2006.01); G01C 15/02 (2006.01); G01S 17/89 (2020.01); G01S 19/42 (2010.01)
CPC G01C 21/005 (2013.01) [G01C 15/002 (2013.01); G01C 15/004 (2013.01); G01C 15/02 (2013.01); G01S 17/89 (2013.01); G01S 19/42 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A survey method using:
a position acquiring device configured to acquire position coordinates of a worker, the position acquiring device including a communication unit; and
a mobile terminal including a terminal communication unit communicating with the position acquiring device, a terminal display unit, a terminal operation unit, and a terminal control unit including at least one processor and at least one memory,
the survey method comprising the steps of:
(a) the terminal control unit reading three-dimensional design data including a plurality of center points which are set at predetermined intervals on a centerline of a route, and a plurality of measurement points which are set on a cross-section passing through the center points, the cross-section being orthogonal to the centerline, and displayed on the terminal display unit;
(b) the terminal control unit setting an advancing direction of observation to a cross-sectional direction or a route direction in the three-dimensional design data;
(c) the terminal control unit setting a first measurement point in the three-dimensional design data;
(d) the terminal control unit making the position acquiring device acquire position coordinates of the worker;
(e) the terminal control unit guiding the worker to the first measurement point;
(f) the terminal control unit making the position acquiring device acquire position coordinates of the worker at the first measurement point;
(g) the terminal control unit setting a not-yet-measured measurement point nearest from a current position of the worker in the set advancing direction of observation as a next measurement point;
(h) the terminal control unit guiding the worker to the next measurement point; and
(i) successively replacing the measurement point in the step (f) with the measurement point that the worker has been guided to and repeating the steps (f) to (h) until there are no more not-yet-measured measurement points, wherein
the cross-sectional direction in the advancing direction of observation is a direction of a series of observations with which making advancement in a direction of a point nearest from a start point along a cross-section, making movement to a nearest cross-section when all points on the cross-section are measured, and making advancement along the cross-section are repeated, and the route direction in the advancing direction of observation is a direction of a series of observations with which making advancement in a direction of a point nearest from a start point along a route, making movement to a nearest point along the same cross-section when all constituent points on a same line extending parallel to the centerline are measured, and making advancement along the route are repeated, and
during observation, by the worker pressing a guidance point switching button which is displayed on the terminal display unit together with the three-dimensional design data, the terminal control unit sets a measurement point nearest from the current position of the worker as the first measurement point irrespective of the advancing direction of observation, and executes the steps (d) to (i).