公开(公告)号：US20230097350A1

公开(公告)日：2023-03-30

申请号：US17950221

申请日：2022-09-22

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita ,  Junki Kaneko

IPC: G01C15/00

Abstract: A surveying system comprises a height measuring device and a high-low measuring device. The high-low measuring device comprises an object measured by the height measuring device, a distance measurement sensor which is provided in a known relationship with the object and measures a distance to a construction surface, a projecting device for projecting a high-low information, and an arithmetic control module, the arithmetic control module calculates a high-low information of the construction surface based on a height information of the object measured by the height measuring device and a distance information measured by the distance measurement sensor, and the projecting device projects the high-low information onto the construction surface.

公开(公告)号：US12181282B2

公开(公告)日：2024-12-31

申请号：US17854991

申请日：2022-06-30

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita ,  Junki Kaneko

IPC: G01C15/02 ,  G01C15/00

Abstract: Provided is a technology to properly display information onto a projection surface without depending on a distance image sensor, and directly project a wide range of information other than a survey setting point onto a construction site. A system includes: a projector including an inclination sensor and at least one reflector; a measuring device configured to measure a position of the reflector; a means having surface information; and a means configured for setting a distance between a projection surface onto which the surface information is projected and the measuring device in a normal direction, wherein the measuring device measures the reflector, and the surface information adjusted according to the distance in the normal direction is projected onto the projection surface.

公开(公告)号：US11048964B2

公开(公告)日：2021-06-29

申请号：US16145354

申请日：2018-09-28

Applicant: TOPCON CORPORATION

Inventor： Daisuke Sasaki ,  George Kelly Cone ,  Junki Kaneko

IPC: G06K9/62 ,  G01S7/48 ,  G01S17/06 ,  G06F3/0484 ,  G06T19/20

Abstract: A survey data processing device includes a point cloud data receiving unit, a vertically cut section generating unit, and a vertical position adjusting unit. The point cloud data receiving unit receives first point cloud data and second point cloud data that are respectively obtained at a first instrument point and a second instrument point. The vertically cut section generating unit cuts the first point cloud data and the second point cloud data at a vertical plane containing the first instrument point and the second instrument point to obtain a vertically cut section of each of the first point cloud data and the second point cloud data. The vertical position adjusting unit matches vertical positions of the vertically cut sections of the first point cloud data and the second point cloud data as viewed from a direction perpendicular to the vertical plane.