-
公开(公告)号：US10767991B2
公开(公告)日：2020-09-08
申请号：US15784563
申请日：2017-10-16
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai
Abstract: A laser scanner includes a distance measuring unit which has a light emitting element for emitting a distance measuring light, a distance measuring light projecting unit, a light receiving unit and a photodetector for producing a light receiving signal, and which performs a distance measurement based on the light receiving signal, an optical axis deflecting unit provided on a distance measuring optical axis and for deflecting the distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of the distance measuring optical axis and a control component for controlling the optical axis deflecting unit and the distance measuring unit, wherein the optical axis deflecting unit comprises a pair of optical prisms capable of rotating and motors for rotating the optical prisms, and wherein the control component is configured to control the optical axis deflecting unit, scan the distance measuring light and acquire scanning data under scanning conditions corresponding to a measurement range.
-
公开(公告)号：US20200271758A1
公开(公告)日：2020-08-27
申请号：US16799967
申请日：2020-02-25
Applicant: TOPCON Corporation
Inventor： Kaoru Kumagai , Minoru Chiba , Akinobu Sugiura
Abstract: Provided is a target instrument including a pole, a prism provided on the pole, and a terminal device provided on the pole, wherein the terminal device comprises an image pickup module, a tilt sensor which detects tilts in two axial directions, and an arithmetic control module, wherein the image pickup module acquires an image which includes a reference object, the tilt sensor detects a tilt angle of a target instrument, and the arithmetic control module calculates a tilt direction of the target instrument from a position of the reference object in the image, calculates a tilt direction of the target instrument based on tilt angles in the two axial directions of the tilt sensor, acquires a deviation between the two tilt directions, and corrects the tilt angles in the two axial directions of the tilt sensor to tilt angles in directions parallel to an optical axis of the image pickup module and orthogonal to the optical axis based on the deviation.
-
公开(公告)号：US10712153B2
公开(公告)日：2020-07-14
申请号：US15477691
申请日：2017-04-03
Applicant: TOPCON CORPORATION
Inventor： Kaoru Kumagai , Satoshi Yanobe , Tetsutaro Kouji
Abstract: Provided is a method for controlling an ultrasonic motor to reduce deterioration of automatic tracking performance, and a surveying instrument for the same. The present invention provides a method for controlling an ultrasonic motor in a surveying instrument including a rotary shaft, an ultrasonic motor that drives a rotary shaft, a tracking unit that includes a light emitting unit and a light receiving unit and tracks a target, and a clock signal oscillation unit that outputs a clock signal, wherein at the time of low-speed rotation of the ultrasonic motor, based on the clock signal, a ratio of an acceleration period in which a drive signal is applied and a deceleration period in which the drive signal is stopped in a drive cycle of the drive signal of the ultrasonic motor is set, and the light emitting unit is made to emit light in the deceleration period.
-
公开(公告)号：US20200096334A1
公开(公告)日：2020-03-26
申请号：US16571572
申请日：2019-09-16
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Ikuo Ishinabe , Kaoru Kumagai
Abstract: A surveying instrument comprises a distance measuring light projecting module, a light receiving module, an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a wide-angle image pickup module, a projecting direction detecting module configured to detect an optical axis deflection angle and a deflecting direction, a narrow-angle image pickup module, a distance measurement calculating module and an arithmetic control module, wherein the arithmetic control module is configured to control the optical axis deflector and the distance measurement calculating module, wherein the distance measurement calculating module is configured to perform a distance measurement of a measuring point based on a light emission timing of a distance measuring light and a light reception timing of a reflected distance measuring light, and wherein the narrow-angle image pickup module is configured to acquire a narrow-angle image with the distance measuring optical axis as an image center.
-
公开(公告)号：US20190162853A1
公开(公告)日：2019-05-30
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.
-
Patent Agency Ranking
公开(公告)号：US10211387B2
公开(公告)日：2019-02-19
申请号：US15463920
申请日：2017-03-20
Applicant: TOPCON CORPORATION
Inventor： Kaoru Kumagai , Satoshi Yanobe , Tetsutaro Kouji
IPC: H02P23/20 , H01L41/04 , B06B1/06 , G01C3/08 , G01D5/347 , G01S3/786 , H01L41/09 , G01C15/00 , H02N2/14 , H02N2/16
Abstract: Provided is a method for controlling an ultrasonic motor to reduce noise sounding during low-speed rotation in a surveying instrument adopting the ultrasonic motor for a rotary shaft, and a surveying instrument for the same. In a method for controlling an ultrasonic motor according to an aspect of the present invention, in a low-speed rotation range of an ultrasonic motor, a ratio of an acceleration period as a time of application of the drive signal in a control cycle is controlled, and a time to start the acceleration period is randomly shifted for each control cycle. In a method for controlling an ultrasonic motor according to another aspect, a time to start the acceleration period is regularly shifted for each control cycle. In a method for controlling an ultrasonic motor according to still another aspect, second-half acceleration control and first-half acceleration control are alternately repeated.
-
公开(公告)号：US11999480B2
公开(公告)日：2024-06-04
申请号：US17781832
申请日：2020-12-03
Applicant: TOPCON Corporation , Tierra S.p.A
Inventor： Riccardo Loti , Kaoru Kumagai
IPC: B64C39/02 , B64D47/08 , G01C15/00 , G05D1/00 , B64U101/30
CPC classification number: B64C39/024 , B64D47/08 , G01C15/002 , G05D1/101 , B64U2101/30 , B64U2201/104
Abstract: A flight control system for an unmanned aerial vehicle comprises an unmanned aerial vehicle on which a reflector is mounted and a total station for tracking the reflector and for acquiring measurement data including three-dimensional coordinates of the reflector, wherein the total station comprises a tracking module for tracking the reflector, a TS-data transmitting module having an optical axis parallel or approximately parallel to a tracking optical axis of the tracking module and for emitting a TS-data transmitting light, and a TS-arithmetic control module, wherein the unmanned aerial vehicle has a photodetector for receiving the TS-data transmitting light and for emitting a photodetecting signal and a UAV-arithmetic control module for controlling a flight of the unmanned aerial vehicle, and wherein the TS-arithmetic control module is configured to superimpose the measurement data on the TS-data transmitting light, and the UAV-arithmetic control module is configured to separate the measurement data from the photodetecting signal and obtains a flight position of the unmanned aerial vehicle in real time.
-
28.发明授权公开(公告)号：US11698254B2
公开(公告)日：2023-07-11
申请号：US17017871
申请日：2020-09-11
Applicant: TOPCON Corporation
Inventor： Ikuo Ishinabe , Fumio Ohtomo , Kaoru Kumagai
CPC classification number: G01C15/002 , G01C15/004 , G01C15/02 , G01S7/4812 , G01S17/08
Abstract: A surveying instrument including an optical axis deflector which integrally deflects a distance measuring optical axis and a light receiving optical axis, a narrow-angle image pickup module having an optical axis a part of which is common to the distance measuring optical axis, a distance measurement calculation module and an arithmetic control module, in which the wavelength dispersion compensation prisms which is constituted of a plurality of optical members having the different wavelength characteristics are provided in the part of which is common to the distance measuring optical axis and the narrow-angle image pickup optical axis, the arithmetic control module performs the distance measurement of a measuring point based on a signal of the distance measuring light and a signal of the reflected distance measuring light, and acquires a narrow-angle image in which the dispersion has been compensated by the wavelength dispersion compensation prisms.
-
公开(公告)号：US20220317149A1
公开(公告)日：2022-10-06
申请号：US17704157
申请日：2022-03-25
Applicant: TOPCON CORPORATION
Inventor： Fumio Ohtomo , Satoshi Yanobe , Kaoru Kumagai , Naoki Shoji
IPC: G01P15/18 , G01P15/093 , G01P15/08
Abstract: An inner frame is rotatably supported by the outer frame via a first shaft, the inertia detecting unit is rotatably supported by the inner frame via a second shaft orthogonal to the first shaft, a first encoder for detecting a rotation angle between the outer frame and the inner frame, a second encoder for detecting a rotation angle between the inner frame and the inertia detecting unit, and rotation powers are provided on the respective shafts. And the arithmetic processing module is configured to drive the respective rotation powers to make the inertia detecting unit to perform a reversal operation of 180° or one rotation at least once based on outputs from the respective encoders regarding the first shaft and the second shaft and to detect a tilt and a rotation based on detection signals output from the inertia detecting unit before and after the reversal.
-
公开(公告)号：US11460548B2
公开(公告)日：2022-10-04
申请号：US16365243
申请日：2019-03-26
Applicant: TOPCON CORPORATION
Inventor： Fumio Ohtomo , Kaoru Kumagai
Abstract: A surveying device body includes a distance measuring section to measure a distance to the measurement target, an optical axis deflector that deflects distance measuring light with respect to a reference optical axis, a measurement direction imaging section that obtains an observation image, and an attitude detector that detects an incline of the surveying device body. A computation controller displays a portion of the observation image on the display unit, computes a direction angle of the distance measuring optical axis on the basis of a detection result of the attitude detector and a deflection angle of the distance measuring optical axis with respect to the reference optical axis, and measures the measurement target on the basis of the direction angle and a distance measurement result of the distance measuring section using a reference point as a reference.
-
-
-
-
-
-
-
-
-
Search Results
89
records
(took 0.016 seconds)
