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公开(公告)号：US10578433B2
公开(公告)日：2020-03-03
申请号：US15718647
申请日：2017-09-28
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yanobe , Hideyuki Matsumoto
Abstract: To eliminate influences of unnecessary reflected light other than a liquid surface in a liquid surface reflection type inclination sensor. In order to attain the object described above, an inclination sensor includes a liquid that forms a liquid surface, an illumination section, a barcode pattern to be illuminated by the illumination section, an optical system that projects the barcode pattern on the liquid surface, a light receiving element that detects the barcode pattern, a storage section that stores a detection image when the liquid surface is removed from an optical path of the optical system, and an arithmetic section that calculates an inclination angle by subtracting the detection image when the liquid surface is removed from a detection image when the liquid surface is present on the optical path of the optical system.
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公开(公告)号：US10267659B2
公开(公告)日：2019-04-23
申请号：US15361703
申请日：2016-11-28
Applicant: TOPCON Corporation
Inventor： Satoshi Yanobe
Abstract: The invention provides an angle detecting device, which comprises absolute encoders provided on a rotation member which rotates at a constant speed, a clock signal generating component, a counter circuit, an angle calculating component, and a trigger signal generating component, wherein an angle trigger signal is inputted to the absolute encoders and the counter circuit at a predetermined time interval, the absolute encoders input rotation angles for each angle trigger signal to the angle calculating component, the counter circuit outputs the number of clock counts to the angle calculating component from the moment when a rotation angle measuring trigger signal is inputted by inputting the rotation angle measuring trigger signal for detecting the rotation angle of the rotation member to the counter circuit, and wherein the angle calculating component detects the rotation angle of the rotation member based on the rotation angles from the absolute encoders and on the number of the clock counts.
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公开(公告)号：US20170160383A1
公开(公告)日：2017-06-08
申请号：US15358359
申请日：2016-11-22
Applicant: TOPCON Corporation
Inventor： Satoshi Yanobe
CPC classification number: G01S17/10 , G01S7/4873 , G01S17/42
Abstract: The invention provides a laser scanner, which comprises a light projecting unit for irradiating a distance measuring light, a light receiving unit for receiving a reflected distance measuring light, a distance measuring unit for performing a distance measurement based on a light receiving signal, a rotary deflecting unit for performing a rotary irradiation of the distance measuring light, and an arithmetic control unit, wherein the arithmetic control unit has a light receiving intensity judging component and a threshold value setting component, a light receiving intensity which is obtained by scanning the distance measuring light is inputted in advance to the threshold value setting component from the light receiving intensity judging component, the threshold value setting component sets a threshold value for detecting light receiving corresponding to the light receiving intensity, and the arithmetic control unit acquires a light receiving signal based on the threshold value and performs a distance measurement.
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公开(公告)号：US20170160108A1
公开(公告)日：2017-06-08
申请号：US15361703
申请日：2016-11-28
Applicant: TOPCON Corporation
Inventor： Satoshi Yanobe
CPC classification number: G01D5/34776 , G01C3/08 , G01C15/002 , G01S7/4817 , G01S17/10 , G01S17/42
Abstract: The invention provides an angle detecting device, which comprises absolute encoders provided on a rotation member which rotates at a constant speed, a clock signal generating component, a counter circuit, an angle calculating component, and a trigger signal generating component, wherein an angle trigger signal is inputted to the absolute encoders and the counter circuit at a predetermined time interval, the absolute encoders input rotation angles for each angle trigger signal to the angle calculating component, the counter circuit outputs the number of clock counts to the angle calculating component from the moment when a rotation angle measuring trigger signal is inputted by inputting the rotation angle measuring trigger signal for detecting the rotation angle of the rotation member to the counter circuit, and wherein the angle calculating component detects the rotation. angle of the rotation member based on the rotation angles from the absolute encoders and on the number of the clock counts.
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公开(公告)号：US20170108333A1
公开(公告)日：2017-04-20
申请号：US15296317
申请日：2016-10-18
Applicant: TOPCON Corporation
Inventor： Masaki Kamiki , Goro Iwasaki , Shinji Yamaguchi , Satoshi Yanobe , Eiji Takeuchi , Yosuke Okudaira
CPC classification number: G01C9/20 , G01C9/06 , G01C2009/066
Abstract: The invention provides a tilt angle measuring device, which comprises a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter the free liquid surface, a photodetector for receiving the detection light reflected on the free liquid surface and a signal processing unit for detecting a tilt of the free liquid surface based on a detection signal from the photodetector, wherein the signal processing unit sets a detection light storage time of the photodetector so that an error incidence rate of the detection signal is a predetermined value.
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Patent Agency Ranking
公开(公告)号：US11868325B2
公开(公告)日：2024-01-09
申请号：US17794599
申请日：2021-02-15
Applicant: TOPCON CORPORATION
Inventor： Atsushi Doji , Toshio Yamada , Nobuyuki Nishita , Satoshi Yanobe
IPC: G06F16/21
CPC classification number: G06F16/212
Abstract: A management system of the present invention includes a design database storing member identification information, member coordinates, and member shapes of construction members constituting a construction object, a management member selecting unit configured to select a management member to be managed among the construction members stored in the design database, a related member selecting unit configured to select a related member adjacent to the management member from the design database, a boundary information creating unit configured to select an adjacent portion between the management member and the related member, and with respect to the adjacent portion, as boundary information, associate identification information, adjacent portion coordinates, an adjacent portion shape of the adjacent portion, member identification information of the management member, and member identification information of the related member with each other, and a comparison result database configured to store information associated by the boundary information creating unit.
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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.
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公开(公告)号：US11293786B2
公开(公告)日：2022-04-05
申请号：US16567466
申请日：2019-09-11
Applicant: TOPCON CORPORATION
Inventor： Satoshi Yanobe
Abstract: A rotary encoder includes: a rotary disk with an angle code; a light source; a detector reading the angle code; and a processing unit acquiring a reading value. The light source includes at least two light-emitting elements spaced from each other. Every time the rotary disk is rotated by a predetermined angle, where an arbitrary angle from a rotation angle θ within a reading range on the detector is provided as φ, the processing unit acquires reading values fI(θ+φ) and fI(θ) with a first light-emitting element and a reading value fII(θ+φ) with a second light-emitting element, to calculate a reading value error due to deflection at an angle θ+φ based on the difference between the reading values fII(θ+φ) and fI(θ+φ), to obtain a difference gI(θ,φ) between the reading values fI(θ+φ) and fI(θ) such that the error is reflected, and to self-calibrate based on a change in the difference gI(θ,φ).
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公开(公告)号：US10323940B2
公开(公告)日：2019-06-18
申请号：US15296317
申请日：2016-10-18
Applicant: TOPCON Corporation
Inventor： Masaki Kamiki , Goro Iwasaki , Shinji Yamaguchi , Satoshi Yanobe , Eiji Takeuchi , Yosuke Okudaira
Abstract: The invention provides a tilt angle measuring device, which comprises a discoid container for including a liquid forming a free liquid surface, a light emitting source for allowing a detection light to enter the free liquid surface, a photodetector for receiving the detection light reflected on the free liquid surface and a signal processing unit for detecting a tilt of the free liquid surface based on a detection signal from the photodetector, wherein the signal processing unit sets a detection light storage time of the photodetector so that an error incidence rate of the detection signal is a predetermined value.
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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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