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公开(公告)号：US20220099807A1
公开(公告)日：2022-03-31
申请号：US17484072
申请日：2021-09-24
Applicant: TOPCON Corporation
Inventor： Takeshi Sasaki , Kaoru Kumagai
IPC: G01S7/481 , G01S17/66 , G01S17/894
Abstract: A laser scanner comprises a distance measuring module for performing the distance measurement, an optical axis deflector for scanning the pulsed distance measuring light, a tracking module for performing tracking, and a control module for controlling the distance measuring module, the optical axis deflector, and the tracking module. The control module detects a moving object from the point cloud data of the predetermined scan range, sets a local scan area including the object, acquires the local point cloud data of the local scan area, calculates a center of gravity position of the local point cloud data, and make the tracking module to track the object based on the calculated center of gravity position.
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公开(公告)号：US11143505B2
公开(公告)日：2021-10-12
申请号：US16195988
申请日：2018-11-20
Applicant: TOPCON Corporation
Inventor： Kaoru Kumagai , Ken-ichiro Yoshino
Abstract: A surveying instrument comprises a first measuring component having a control module and a second measuring component, wherein the control module acquires point cloud data of a whole circumference in a room with the use of the second measuring component in accordance with each installation point, makes the first measuring component to measure a predetermined position in the room, prepares outer shape data of a same height and a same shape in accordance with each installation point based on a measurement result of the first measuring component or the second measuring component, performs a shape matching of each outer shape data, and registers each point cloud data based on a movement amount and a rotation amount at the time of performing the shape matching.
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公开(公告)号：US10800344B2
公开(公告)日：2020-10-13
申请号：US15808976
申请日：2017-11-10
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai
Abstract: An aerial photogrammetric device comprises an aerial vehicle configured to fly autonomously or remotely controlled, an image pickup device provided on the aerial vehicle and having an optical axis extending in a vertical direction, an attitude detecting device for detecting a tilt angle and a tilting direction with respect to a horizontality or a verticality of the optical axis, a position measuring device, and a control device for controlling a flight of the aerial vehicle, wherein the control device is configured to acquire images at two points by the image pickup device, acquire image acquiring positions at a time of image acquisition from the position measuring device, acquire a detection result of the attitude detecting device at the time of image acquisition, correct the images acquired at the two points into horizontal images based on the detection result, and perform a relative orientation of the obtained horizontal images.
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公开(公告)号：US10520307B2
公开(公告)日：2019-12-31
申请号：US15421812
申请日：2017-02-01
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Tetsuji Anai
IPC: G01C5/00
Abstract: The invention provides a surveying instrument, which comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured, an image pickup unit for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the image pickup unit, and an arithmetic processing unit, wherein the attitude detecting unit has tilt sensors for detecting a horizontal and a relative tilt angle detecting unit for detecting a tilt angle of the measuring unit with respect to the horizontal, and wherein the arithmetic processing unit calculates a tilting of the image with respect to a vertical based on a detection result of the attitude detecting unit and displays vertical lines in the image acquired by the image pickup unit based on this calculation result.
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公开(公告)号：US10345232B2
公开(公告)日：2019-07-09
申请号：US16065971
申请日：2016-12-21
Applicant: TOPCON CORPORATION
Inventor： Kaoru Kumagai , Shugo Akiyama , Issei Hanya , Peng Zhao , Masashi Funahashi , Yoshimitsu Nakajima , Yuji Shirane
IPC: G01N21/35 , G01N33/38 , G01N21/27 , G01N21/359
Abstract: A method of measuring a state of concrete includes emitting an irradiation light to the concrete, the irradiation light including a wavelength range of near infrared light related to concrete measurement; and receiving a reflection light of the irradiation light P reflected on the concrete. At least five wavelengths λ1 to λ5, λ6 to λ10, different from each other by PLS regression analysis within a wavelength range of 900 nm to 2500 nm of absorption spectrum, are determined, and a degree of neutralization of the concrete caused by calcium hydroxide and a concentration of chloride ion is estimated.
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Patent Agency Ranking
公开(公告)号：US10337863B2
公开(公告)日：2019-07-02
申请号：US15913002
申请日：2018-03-06
Applicant: TOPCON CORPORATION
Inventor： Kaoru Kumagai , Nobuyuki Nishita , Takeshi Sasaki
Abstract: A survey system includes a camera provided on a UAV and taking a plurality of images for photogrammetry. A surveying portion tracking the camera and continuously determining a position of the camera and a relative photographing position calculation portion calculates a relative photographing position of each image based on the plurality of images taken by the camera, and a traveling path calculation portion calculates a traveling path of the UAV from a survey result obtained by the surveying portion. A photogrammetry analysis portion associating a point group of the relative photographing positions calculated by the relative photographing position calculation portion with a flight path calculated by the flight path calculation portion, and generating data for photogrammetry.
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公开(公告)号：US20190154805A1
公开(公告)日：2019-05-23
申请号：US16183017
申请日：2018-11-07
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Ikuo Ishinabe , Kaoru Kumagai
Abstract: A distance measuring light projecting module comprises a light receiving module for receiving a reflected distance measuring light and a background light, a distance measuring unit for receiving the reflected distance measuring light and performs a distance measurement, an image pickup module for receiving the background light and for acquiring a background image, an optical axis deflector for integrally deflecting an optical axis of the distance measuring light and an optical axis of the background light, and an arithmetic control module for controlling the optical axis deflector, wherein the optical axis deflector has a rotary driving module for rotating a pair of disk prisms individually, and a projecting direction detecting module for detecting a rotation angle of each of the disk prisms.
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公开(公告)号：US10281580B2
公开(公告)日：2019-05-07
申请号：US15342387
申请日：2016-11-03
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Hitoshi Otani , Tetsuji Anai
Abstract: The invention provides a surveying system, which comprises a surveying instrument, wherein the surveying instrument comprises a measuring unit for performing a distance measurement by projecting a distance measuring light toward an object to be measured and by receiving a reflected distance measuring light from the object to be measured, an image pickup unit having an image pickup optical axis running in parallel to a projection optical axis of the distance measuring light and for picking up an image including the object to be measured, an attitude detecting unit provided integrally with the measuring unit and for detecting a tilt angle with respect to the horizontal of the measuring unit, a coordinates acquiring unit for detecting a position of the surveying instrument and an arithmetic processing unit, wherein a first image of the object to be measured is acquired by the image pickup unit from a first position where coordinates of the first position are acquired by the coordinates acquiring unit, a second image of the object to be measured is acquired by the image pickup unit from a second position where coordinates of the second position are acquired by the coordinates acquiring unit, wherein the measuring unit directs a distance measuring optical axis toward common measuring points as specified in the first image and the second image respectively, projects the distance measuring light, and carries out a first distance measurement from the first position and a second distance measurement from the second position, and wherein the arithmetic processing unit calculates horizontal distances from the first position and the second position respectively based on the tilt angles detected by the attitude detecting unit at the first position and the second position, on the first distance measurement and on the second distance measurement, and further the arithmetic processing unit is configured to calculate a base line length based on coordinates of the first position and on coordinates of the second position and to carry out a trilateration with respect to the measuring point based on the horizontal distance and on the base line length.
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公开(公告)号：US10262435B2
公开(公告)日：2019-04-16
申请号：US15718702
申请日：2017-09-28
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yanobe , Kaoru Kumagai
Abstract: To provide a surveying instrument capable of evaluating tracking performance without using a device other than the surveying instrument. In order to attain the object described above, a surveying instrument includes a tracking section that detects a position of a target from a shot image, a virtual target position calculating section, a virtual tracking section that converts a position of a virtual target as if it was captured by the tracking section, a tracking arithmetic section that handles an output of the virtual tracking section the same as an output of the tracking section and determines rotational movements of a horizontal shaft and a vertical shaft, a motor control section, motors that rotate the horizontal shaft and the vertical shaft, and encoders that detect rotation amounts of the horizontal shaft and the vertical shaft.
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公开(公告)号：US20190063922A1
公开(公告)日：2019-02-28
申请号：US16044635
申请日：2018-07-25
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Satoshi Yanobe
Abstract: A surveying system comprising a rover having an illuminating lamp for emitting an illumination light, a second azimuth indicator for detecting an azimuth angle of an optical axis of the illumination light, a surveying instrument comprises a surveying instrument main body and a rotary driving unit capable of rotating the surveying instrument main body in at least a left-and-right direction, wherein the surveying instrument main body comprises a first azimuth indicator for detecting an azimuth angle of a reference optical axis, and as arithmetic control module, and wherein the arithmetic control module is configured to calculate the azimuth angle of the reference optical axis which is in parallel or approximately parallel with the optical axis of the illumination light based on the azimuth angle of the optical axis of the illumination light received from the rover and the azimuth angle of the reference optical axis.
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