公开(公告)号：US11536568B2

公开(公告)日：2022-12-27

申请号：US16558574

申请日：2019-09-03

Applicant: TOPCON Corporation

Inventor： Nobuyuki Nishita

IPC: G01C15/00 ,  G01S7/481 ,  G01C3/08 ,  G01S17/42 ,  G01S17/89

Abstract: A surveying system comprises a laser scanner for scanning a distance measuring light and for acquiring point cloud data and a target instrument having a target for reflecting the distance measuring light, wherein the target is a sphere having a known diameter, the laser scanner comprises a distance measuring module for projecting the distance measuring light, for receiving a reflected distance measuring light and for performing a distance measurement, an optical axis deflector which enables to two-dimensionally deflect the distance measuring light, and an arithmetic control module for controlling the optical axis deflector, and wherein the arithmetic control module is configured to perform a circular scan on a surface of the target by the optical axis deflector, to obtain a center of the target based on the point cloud data acquired by the circular scan and the diameter, and to measure a distance of the center of the target.

公开(公告)号：US11500096B2

公开(公告)日：2022-11-15

申请号：US16662099

申请日：2019-10-24

Applicant: TOPCON Corporation

Inventor： Nobuyuki Nishita

IPC: G01S17/42 ,  G01C15/00

Abstract: A surveying instrument comprises a distance measuring module configured to perform a distance measurement of an objects to be measured, an optical axis deflector which is provided on a distance measuring optical axis and enables to two-dimensionally deflect the distance measuring optical axis, an arithmetic control module configured to control a deflecting action of the optical axis deflector and a distance measuring action of the distance measuring module, and a display module configured to display calculation results by the arithmetic control module, and wherein the arithmetic control module is configured to scan at least one plane of the objects to be measured in a predetermined scan pattern in at least one cycle by the optical axis deflector, to calculate parameters of the plane based on a measurement result of point cloud data acquired along a locus of a scan, and to display the calculated parameters on the display module.

公开(公告)号：US11460299B2

公开(公告)日：2022-10-04

申请号：US16122028

申请日：2018-09-05

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita

IPC: G01C11/02 ,  B64C39/02 ,  B64D47/08 ,  G01C11/30 ,  G01S17/89 ,  G01C15/00 ,  G01S17/87 ,  G01S17/66 ,  G01S17/42 ,  G05D1/00 ,  G01S17/86

Abstract: Provided is a survey system capable of more highly accurately obtaining a product of a three-dimensional survey. A survey system includes a mobile body, a scanner including an emitting unit, a light receiving unit, a distance measuring unit, a first optical axis deflecting unit disposed on an optical axis of the distance measuring light and configured to deflect a distance measuring light, a second optical axis deflecting unit disposed on a light receiving optical axis of the reflected distance measuring light and configured to deflect a reflected distance measuring light at the same angle in the same direction as those of the first optical axis deflecting unit, and an emitting direction detecting unit to detect deflection angles and directions of the first and the second optical axis deflecting units, a posture detecting device of the scanner, and a position measuring device of the scanner.

公开(公告)号：US11460297B2

公开(公告)日：2022-10-04

申请号：US16574909

申请日：2019-09-18

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita

IPC: G01C3/00 ,  G01C3/08 ,  G01S17/42 ,  G01S17/89 ,  G01S7/481 ,  G01S7/497

Abstract: A measurement apparatus is provided that includes a distance measuring unit, a deflecting unit, and a calculation control unit which controls the distance measuring unit and the deflecting unit. The calculation control unit detects coordinates of a pair of intersection points of the object to be measured and a scan trajectory with the measurement light on the basis of a distance measurement result by the distance measuring unit and the direction of emission deflected by the deflecting unit. The calculation control unit controls a deflection operation of the deflecting unit so as to change the direction of emission on the basis of the coordinates of the pair of intersection points such that the scan trajectory with the measurement light and the object to be measured intersect with each other.

公开(公告)号：US20220307833A1

公开(公告)日：2022-09-29

申请号：US17704076

申请日：2022-03-25

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita

IPC: G01C15/00 ,  G01C11/02

Abstract: A surveying system comprises a target and a measuring instrument. The target has retro-reflection characteristics, the measuring instrument comprises a point measuring unit for irradiating a distance measuring light, for receiving a reflected light and for measuring three-dimensional coordinates of the target based on a light receiving result, a scanner unit for rotatably irradiating a laser beam and for acquiring the point cloud data and an arithmetic control module, wherein the point measuring unit measures the target held in the vicinity of an object, the arithmetic control module calculates a region of a three-dimensional space including the object based on a target measurement result of the point measuring unit, the scanner unit scans a predetermined range including the object and acquires the point cloud data, and the arithmetic control module selects the point cloud data only included in the region of the point cloud data.

公开(公告)号：US11333764B2

公开(公告)日：2022-05-17

申请号：US16255235

申请日：2019-01-23

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita ,  You Sasaki

IPC: G01S17/66 ,  G01C15/00 ,  G01C11/02 ,  G01C3/02 ,  G01S17/89 ,  G01C11/18 ,  G01S17/42 ,  B64D43/00 ,  G01S17/87

Abstract: The survey system includes a mobile body equipped with a scanner configured to perform scanning by a distance measuring light, a position measuring device configured to measure a position of the scanner, and a posture detecting device configured to detect a posture of the scanner, the posture detecting device includes an imaging unit configured to periodically acquire image data, a 3-axis angular velocity sensor configured to detect 3-axis posture angles of the scanner, and an arithmetic control unit, and the arithmetic control unit is configured to calculate posture information of the scanner by summing photographing-time 3-axis posture angles (SP0, SP1, SPn) of the scanner acquired in each photographing by image analysis of the image data, and 3-axis posture relative displacement angles of the scanner calculated from detection values of the 3-axis angular velocity sensor.

公开(公告)号：US11293754B2

公开(公告)日：2022-04-05

申请号：US16824788

申请日：2020-03-20

Applicant: TOPCON Corporation

Inventor： Satoshi Hirano ,  Kaoru Kumagai ,  Fumio Ohtomo ,  Kazuki Osaragi ,  Nobuyuki Nishita ,  Tetsuji Anai ,  Noriyasu Kiryuu

IPC: G01C15/00

Abstract: There is provided a surveying instrument including a monopod which is installed on a reference point, a surveying instrument main body which is provided at a known distance from a lower end of the monopod and a known angle with respect to an axis of the monopod, two auxiliary legs which extend downward from a middle portion of the monopod at a predetermined angle, and a lower image pickup module which is provided at a known position with respect to the surveying instrument main body, wherein the surveying instrument main body comprises a measuring unit, a measuring direction image pickup module, and an arithmetic control module, wherein the surveying instrument main body is supported by three points by the monopod and the auxiliary legs, and a positional change or a rotational change of the surveying instrument main body is calculated based on a change of the lower image.

公开(公告)号：US20210302162A1

公开(公告)日：2021-09-30

申请号：US17215074

申请日：2021-03-29

Applicant: TOPCON Corporation

Inventor： Nobuyuki Nishita

IPC: G01C15/00 ,  G01S17/89 ,  G01S7/481

Abstract: Provided is a surveying instrument including a surveying instrument main body, in which the surveying instrument main body includes a distance measuring module configured to project the distance measuring light toward an object and to perform the distance measurement, an optical axis deflector configured to at least uniaxially perform a scan using the distance measuring light, a storage module configured to store a two-dimensional map, and an arithmetic control module, and the arithmetic control module is configured to compare two-dimensional coordinates excluding a height in three-dimensional coordinates of each point acquired along a locus of the distance measuring light with the positional information of the measuring point in said two-dimensional map, and select a point which is in a range of a threshold value set in advance from the positional information of the measuring point in the two-dimensional map as the measuring point.

公开(公告)号：US20200318966A1

公开(公告)日：2020-10-08

申请号：US16824788

申请日：2020-03-20

Applicant: TOPCON Corporation

Inventor： Satoshi Hirano ,  Kaoru Kumagai ,  Fumio Ohtomo ,  Kazuki Osaragi ,  Nobuyuki Nishita ,  Tetsuji Anai ,  Noriyasu Kiryuu

IPC: G01C15/00

Abstract: There is provided a surveying instrument including a monopod which is installed on a reference point, a surveying instrument main body which is provided at a known distance from a lower end of the monopod and a known angle with respect to an axis of the monopod, two auxiliary legs which extend downward from an middle portion of the monopod at a predetermined angle, and a lower image pickup module which is provided at a known position with respect to the surveying instrument main body, wherein the surveying instrument main body comprises a measuring unit, a measuring direction image pickup module, and an arithmetic control module, wherein the surveying instrument main body is supported by three points by the monopod and the auxiliary legs, and a positional change or a rotational change of the surveying instrument main body is calculating based on a change of the lower image.

公开(公告)号：US10795365B2

公开(公告)日：2020-10-06

申请号：US15962037

申请日：2018-04-25

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki Nishita ,  Mitsuru Ogawa

IPC: H04N7/18 ,  G05D1/00 ,  G01C11/02 ,  G01C15/06 ,  G01C11/06 ,  G05D1/10 ,  G01C15/00

Abstract: A photogrammetry analysis unit of an analysis device associates the survey result obtained by a surveying device with a photographing position of each image taken by a camera, recognizes the surveying device from the image containing the surveying device, corrects the photographing position based on the known point coordinates of the surveying device, and generates the data for photogrammetry.