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公开(公告)号：US20180329041A1
公开(公告)日：2018-11-15
申请号：US15968913
申请日：2018-05-02
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Nobuyuki Nishita
CPC classification number: G01C15/002 , G01C15/06 , G06K9/00201
Abstract: A target instrument has an object to be measured which is provided with a reflection sheet, wherein the total station has a distance measuring light projecting unit, a light receiving unit, a distance measuring unit for performing a distance measurement of an object to be measured, an optical axis deflector capable of deflecting the distance measuring optical axis two-dimensionally, a projecting direction detecting module for detecting a deflection angle of the distance measuring optical axis and performing an angle measurement, and an arithmetic control module for controlling the optical axis deflector and the distance measuring unit, wherein the arithmetic control module is configured to two-dimensionally scan the object to be measured with the distance measuring light and to perform a distance measurement and an angle measurement with respect to the object to be measured, and further to detect a tilt and a tilt direction of the target instrument.
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公开(公告)号：US20180231639A1
公开(公告)日：2018-08-16
申请号：US15894198
申请日：2018-02-12
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai
CPC classification number: G01S7/4808 , G01C15/002 , G01S7/4817 , G01S7/51 , G01S17/10 , G01S17/42 , G01S17/66
Abstract: A surveying instrument comprises a distance measuring unit which includes a light emitting element, 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 of an object to be measured based on the light receiving signal, an optical axis deflecting unit for deflecting the distance measuring optical axis, a projecting direction detecting unit for detecting a deflection angle of the distance measuring optical axis and an arithmetic control component, wherein the optical axis deflecting unit comprises a pair of optical prisms capable of rotating and motors which individually and independently rotate the optical prisms, and wherein the arithmetic control component is configured to control the optical axis deflecting unit, to perform a two-dimensional scanning of the distance measuring light, to perform a distance measurement of when the light receiving signal is detected, to measure a horizontal angle and a vertical angle of the object to be measured, and to obtain three-dimensional coordinates of the object to be measured based on a distance value, and the horizontal angle and the vertical angle.
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公开(公告)号：US20180224549A1
公开(公告)日：2018-08-09
申请号：US15889530
申请日：2018-02-06
Applicant: TOPCON Corporation
Inventor： Ken-ichiro Yoshino , Fumio Ohtomo
IPC: G01S17/42 , G01B11/245 , G01B11/00
CPC classification number: G01S17/42 , G01B11/002 , G01B11/245 , G01C15/002
Abstract: The invention provides a measuring system, which comprises a plurality of measuring units and a leveling unit common to the plurality of measuring units, the leveling unit has a recessed fitting portion on an upper surface, and the plurality of measuring units each has a projecting fitting portion which is engageable and disengageable with respect to the recessed fitting portion, wherein the plurality of measuring units are constituted to be attachable and detachable with respect to the leveling unit, and in a state where each of the measuring units is mounted on the leveling unit, a same object to be measured is measured respectively, an offset amount between each of the measuring units is measured, and based on the offset amount, a measurement value measured in each of the measuring units is corrected and coordinate-converted.
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公开(公告)号：US20180147998A1
公开(公告)日：2018-05-31
申请号：US15808976
申请日：2017-11-10
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai
CPC classification number: B60R11/04 , B64C39/024 , B64C2201/127 , B64C2201/146 , G03B15/006 , G05D1/0094 , G05D1/0858
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：US20180106615A1
公开(公告)日：2018-04-19
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.
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Patent Agency Ranking
公开(公告)号：US09897436B2
公开(公告)日：2018-02-20
申请号：US15602228
申请日：2017-05-23
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Tetsuji Anai
Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.
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公开(公告)号：US20180023944A1
公开(公告)日：2018-01-25
申请号：US15636767
申请日：2017-06-29
Applicant: TOPCON CORPORATION
Inventor： Fumio Ohtomo , Kaoru Kumagai
CPC classification number: G01B11/026 , G01S7/4808 , G01S7/4817 , G01S17/08 , G01S17/42
Abstract: A laser remote length measurement instrument capable of remotely measuring a length between two required points in a non-contact manner is provided. The laser remote length measurement instrument includes a rangefinding unit, an optical axis deflection section, a rotation angle detector, and a computation controller. The rangefinding unit is configured to cause a light emitting element to emit visible rangefinding light and obtain a light reception signal. The optical axis deflection section is configured to scan to-and-fro between two directions with the rangefinding light. The rotation angle detector is configured to detect a divergence angle between the two directions. The computation controller is configured to compute a distance between illuminated points in the two directions illuminated with the rangefinding light on the basis of rangefinding results for the illuminated points and the divergence angle between the two directions.
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公开(公告)号：US20170350692A1
公开(公告)日：2017-12-07
申请号：US15602228
申请日：2017-05-23
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Tetsuji Anai
Abstract: The invention provides a measuring instrument, which comprises an image pickup unit for acquiring an image of a range including an object to be measured, a distance measuring unit for two-dimensionally scanning a predetermined range in synchronization with an image acquisition and for measuring, an arithmetic control unit and an attitude detecting unit for detecting a tilt angle of the image pickup unit with respect to a horizontality, wherein the arithmetic control unit associates a measurement result and a detection result of the attitude detecting unit with each pixel on a scanning locus corresponding to an acquired image.
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公开(公告)号：US20170131404A1
公开(公告)日：2017-05-11
申请号：US15342387
申请日：2016-11-03
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Kaoru Kumagai , Hitoshi Otani , Tetsuji Anai
CPC classification number: G01S17/48 , G01C15/002 , G01S7/4812 , G01S7/4814 , G01S7/4817 , G01S17/89
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：US11940274B2
公开(公告)日：2024-03-26
申请号：US17070966
申请日：2020-10-15
Applicant: TOPCON Corporation
Inventor： Fumio Ohtomo , Nobuyuki Nishita , Kaoru Kumagai
IPC: G01C15/00
CPC classification number: G01C15/008
Abstract: A tilt detecting unit has a tilt sensor and is rotatably supported by an inner frame through a second shaft orthogonal to a first shaft, a first encoder is provided on the first shaft, a second encoder is provided on the second shaft, motors are provided on the respective shafts, an arithmetic processing module drives the respective motors so that the tilt sensor detects the horizontality based on a signal issued by the tilt sensor, calculates a tilt of the outer frame based on the outputs from the first and second encoders when the tilt sensor detects the horizontality, reverses the tilt detecting unit 180° at least once based on the outputs from the respective encoders in a stationary state of the tilt detecting device, and performs the calibration of the tilt sensor based on the detection signals output from the tilt sensor before and after the reversal.
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