Patents by Inventor Tetsuji Anai
Tetsuji Anai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11630208Abstract: A measurement system includes: a storage configured to store design information including at least a dimension and a designed position of each of building components at a construction site; a component identifier configured to identify at least one of the building components constructed at the construction site as an identified building component, based on the designed position stored in the storage; a scanner configured to measure a distance and/or angle from the identified building component identified by the component identifier; a point cloud data generator configured to generate three-dimensional point cloud data, based on a result of the distance and/or angle measured by the scanner; and an actually measured position calculator configured to calculate an actually measured position of the identified building component, based on the three-dimensional point cloud data.Type: GrantFiled: May 13, 2020Date of Patent: April 18, 2023Assignee: Topcon CorporationInventors: Nobuyuki Nishita, Tetsuji Anai
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Patent number: 11598637Abstract: A surveying instrument comprises a distance measuring unit configured to measure a distance to an object to be measured, an optical axis deflector configured to deflect a distance measuring light, a measuring direction image pickup module configured to acquires an observation image and an arithmetic control module, wherein the arithmetic control module is configured to continuously cut out sighting images around a tracking point set in the observation image, to set a first cutout sighting image as a reference sighting image, to calculate a movement amount of the sighting image with respect to the reference sighting image by an image matching of the reference sighting image and the sighting image and to control the optical axis deflector based on a calculation result in such a manner that the tracking point is positioned at a center of the sighting image.Type: GrantFiled: September 10, 2019Date of Patent: March 7, 2023Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11598874Abstract: There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an optical axis deflector provided in a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector which detects an optical axis deflection angle and a deflecting direction, a narrow angle image pickup module for a narrow angle of view, a distance measurement arithmetic module, and an arithmetic control module, wherein the arithmetic control module controls the optical axis deflector and the distance measurement arithmetic module, the distance measurement arithmetic module performs a distance measurement of a measuring point based on a transmission signal of a measuring light and a reception signal of a measuring light, the narrow angle image pickup module acquires a narrow angle image with reference to the distance measuring optical axis, a sighting is performed every different objects, and an acquisition of the narrow angle imType: GrantFiled: March 16, 2021Date of Patent: March 7, 2023Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11512957Abstract: A surveying instrument include a monopod installed on a reference point and a surveying instrument main body provided on the monopod, wherein the surveying instrument main body includes a measuring direction image pickup module which acquires first image including an object, a distance measuring unit which measures a distance to the object, a measuring direction detecting module which detects a measuring direction, a time detector which generates a reference time signal and an arithmetic control module, the arithmetic control module associates a distance measurement result with the reference time signal, associates a measuring direction with the reference time signal, and associates the first image with the reference time signal, associates an image change, the measuring direction, and a distance measurement result with each other based on the reference time signal, calculates a measuring direction in the distance measurement and determines a position of a measurement part of the object.Type: GrantFiled: June 9, 2020Date of Patent: November 29, 2022Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Patent number: 11421989Abstract: A surveying instrument include a surveying instrument including a surveying instrument main body, a measuring direction image pickup module for acquiring a first image, a distance measuring unit for measuring a distance to the object, a projecting direction detecting module for detecting a projecting direction of the distance measuring light, a time detector for generating a signal of a reference time, a downward image pickup module for acquiring a second image, an attitude detector for detecting a tilt of the surveying instrument main body and an arithmetic control module, wherein the arithmetic control module is configured to detect a change between the first images or the second images, determine a measuring point of the object with respect to the vertical lower image based on the change between the images and the detection results of the distance measuring unit and the projecting direction detecting module and the reference time.Type: GrantFiled: June 9, 2020Date of Patent: August 23, 2022Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Patent number: 11415414Abstract: A surveying instrument comprises a monopod installed at a reference point, a surveying instrument main body provided at the monopod and having an attitude detector, wherein the surveying instrument main body carries out an image pickup and a scanning of an object to be measured at a pre-movement and a post-movement respectively, obtains at least three cross points of a locus of a scan pattern of the pre-movement and the post-movement, and calculates three-dimensional coordinates of an installation point of the post-movement based on three-dimensional coordinates of the cross points measured from the reference point, a measurement result of the cross points measured from the installation point of the post-movement and a detection result of the attitude detector.Type: GrantFiled: May 21, 2019Date of Patent: August 16, 2022Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11402207Abstract: A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body having a reference optical axis and an operation panel, wherein the surveying instrument main body has a distance measuring unit, an arithmetic control module, a measuring direction image pickup module which acquires a first image, and an attitude detector which detects tilts of two axes of the surveying instrument main body to the horizontal, and wherein the operation panel has a display unit, a calculating module, and as operation module, and the at least either one of the arithmetic control module and the calculating module calculates a tilt angle of the reference optical axis to the horizontal and a tilt angle of the monopod to the vertical, and the at least either one measures a horizontal distance and a vertical distance to the object to be measured with reference to the reference point.Type: GrantFiled: December 11, 2018Date of Patent: August 2, 2022Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Patent number: 11333496Abstract: A surveying instrument comprises a monopod installed on a reference point, a surveying instrument main body provided at a known distance from a lower end of the monopod and at a known angle with respect to an axis of the monopod and having a reference optical axis, wherein the surveying instrument main body performs an image pickup of an object to be measured and scans the object to be measured by a closed loop scan pattern respectively at a pre-rotation and a post-rotation of the surveying instrument main body, obtains cross points of a locus of a scan pattern of the pre-rotation and the post-rotation, obtains deflection angles of the cross point with respect to the reference optical axis of the pre-rotation and the post-rotation, and calculates a rotation angle of the surveying instrument main body based on a deviation between both of the deflection angles.Type: GrantFiled: April 30, 2019Date of Patent: May 17, 2022Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11293754Abstract: 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.Type: GrantFiled: March 20, 2020Date of Patent: April 5, 2022Assignee: TOPCON CorporationInventors: Satoshi Hirano, Kaoru Kumagai, Fumio Ohtomo, Kazuki Osaragi, Nobuyuki Nishita, Tetsuji Anai, Noriyasu Kiryuu
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Publication number: 20210382143Abstract: There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an attitude detector, an optical axis deflector provided on a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector configured to detect an optical axis deflection angle and a deflecting direction provided, a narrow angle image pickup module which has a field angle narrower than the wide angle image pickup module and a narrow angle image pickup optical axis which is partially shared with the distance measuring optical axis, and an arithmetic control module, in which a wavelength dispersion compensating prism is provided in a common portion, the arithmetic control module is configured to deflect the distance measuring optical axis in a horizontal direction by the optical axis deflector, to sequentially perform the distance measurement and the acquisition of the narrow angle image.Type: ApplicationFiled: June 4, 2021Publication date: December 9, 2021Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11193765Abstract: There is provided a surveying instrument including a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module which includes the object to be measured and is configured to acquire as observation image, an attitude detector is configured to detect a tilt of the surveying instrument main body and a arithmetic control module, and wherein the arithmetic control module is configured to extract each common corresponding point from a first image acquired at a first installing point and a second image acquired at a second installing point, perform the matching based on the corresponding point, and make a measurement of a positional relationship of the object to be measured with respect to the first installing point and the second installing point based on a matching image.Type: GrantFiled: December 9, 2019Date of Patent: December 7, 2021Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 11150346Abstract: A measuring method, wherein point cloud data of a building is acquired by a laser scanner, wherein the laser scanner has an attitude detector for detecting a tilting with respect to a horizontality or a verticality, converts the point cloud data into a horizontal distance and a height or a difference of a height based on the tilting detected by the attitude detector, sets a height line at a predetermined height on a wall surface, averages a horizontal distance information of the point cloud data included in a predetermined width with the height line as a center in a height direction, further develops the horizontal distance information along the height line in a horizontal direction, and measures a horizontal cross section at the predetermined height.Type: GrantFiled: August 3, 2017Date of Patent: October 19, 2021Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20210293962Abstract: There is provided a surveying instrument including a distance measuring light projecting module, a light receiving module, an optical axis deflector provided in a common portion of a distance measuring optical axis and a light receiving optical axis, a projecting direction detector which detects an optical axis deflection angle and a deflecting direction, a narrow angle image pickup module for a narrow angle of view, a distance measurement arithmetic module, and an arithmetic control module, wherein the arithmetic control module controls the optical axis deflector and the distance measurement arithmetic module, the distance measurement arithmetic module performs a distance measurement of a measuring point based on a transmission signal of a measuring light and a reception signal of a measuring light, the narrow angle image pickup module acquires a narrow angle image with reference to the distance measuring optical axis, a sighting is performed every different objects, and an acquisition of the narrow angle imType: ApplicationFiled: March 16, 2021Publication date: September 23, 2021Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Patent number: 10921430Abstract: A target instrument has an illuminating lamp, wherein a total station has an optical axis deflector capable of deflecting a distance measuring optical axis, a projecting direction detecting module for performing an angle measurement of the distance measuring optical axis, an image pickup unit, and an arithmetic control module for controlling a deflecting action of the optical axis deflector and a distance measuring action of a distance measuring unit, wherein the arithmetic control module is configured to detect an illumination light from an image acquired by the image pickup unit, to acquire a direction of the illuminating lamp based on a detection result, to make the optical axis deflector to scan with a distance measuring light around the acquired direction and to perform a distance measurement and an angle measurement along a scanning path.Type: GrantFiled: May 2, 2018Date of Patent: February 16, 2021Assignee: TOPCON CorporationInventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai
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Publication number: 20200386546Abstract: A surveying instrument include a monopod installed on a reference point and a surveying instrument main body provided on the monopod, wherein the surveying instrument main body includes a measuring direction image pickup module which acquires first image including an object, a distance measuring unit which measures a distance to the object, a measuring direction detecting module which detects a measuring direction, a time detector which generates a reference time signal and an arithmetic control module, the arithmetic control module associates a distance measurement result with the reference time signal, associates a measuring direction with the reference time signal, and associates the first image with the reference time signal, associates an image change, the measuring direction, and a distance measurement result with each other based on the reference time signal, calculates a measuring direction in the distance measurement and determines a position of a measurement part of the object.Type: ApplicationFiled: June 9, 2020Publication date: December 10, 2020Inventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Publication number: 20200386547Abstract: A surveying instrument include a surveying instrument including a surveying instrument main body, a measuring direction image pickup module for acquiring a first image, a distance measuring unit for measuring a distance to the object, a projecting direction detecting module for detecting a projecting direction of the distance measuring light, a time detector for generating a signal of a reference time, a downward image pickup module for acquiring a second image, an attitude detector for detecting a tilt of the surveying instrument main body and an arithmetic control module, wherein the arithmetic control module is configured to detect a change between the first images or the second images, determine a measuring point of the object with respect to the vertical lower image based on the change between the images and the detection results of the distance measuring unit and the projecting direction detecting module and the reference time.Type: ApplicationFiled: June 9, 2020Publication date: December 10, 2020Inventors: Fumio Ohtomo, Tetsuji Anai, Kaoru Kumagai
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Publication number: 20200363530Abstract: A measurement system includes: a storage configured to store design information including at least a dimension and a designed position of each of building components at a construction site; a component identifier configured to identify at least one of the building components constructed at the construction site as an identified building component, based on the designed position stored in the storage; a scanner configured to measure a distance and/or angle from the identified building component identified by the component identifier; a point cloud data generator configured to generate three-dimensional point cloud data, based on a result of the distance and/or angle measured by the scanner; and an actually measured position calculator configured to calculate an actually measured position of the identified building component, based on the three-dimensional point cloud data.Type: ApplicationFiled: May 13, 2020Publication date: November 19, 2020Applicant: Topcon CorporationInventors: Nobuyuki NISHITA, Tetsuji ANAI
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Publication number: 20200318963Abstract: 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, wherein the surveying instrument main body comprises a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module configured to acquire an observation image including the object to be measured, an attitude detector configured to detect the tilts of the surveying instrument main body with respect to the horizontality, and an arithmetic control module, and wherein the surveying instrument main body is supported by three points by the monopod and the auxiliary legs.Type: ApplicationFiled: March 20, 2020Publication date: October 8, 2020Inventors: Satoshi Hirano, Kaoru Kumagai, Fumio Ohtomo, Kazuki Osaragi, Nobuyuki Nishita, Tetsuji Anai, Noriyasu Kiryuu
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Publication number: 20200318966Abstract: 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.Type: ApplicationFiled: March 20, 2020Publication date: October 8, 2020Inventors: Satoshi Hirano, Kaoru Kumagai, Fumio Ohtomo, Kazuki Osaragi, Nobuyuki Nishita, Tetsuji Anai, Noriyasu Kiryuu
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Publication number: 20200182614Abstract: There is provided a surveying instrument including a distance measuring unit configured to measure a distance to an object to be measured, a measuring direction image pickup module which includes the object to be measured and is configured to acquire as observation image, an attitude detector is configured to detect a tilt of the surveying instrument main body and a arithmetic control module, and wherein the arithmetic control module is configured to extract each common corresponding point from a first image acquired at a first installing point and a second image acquired at a second installing point, perform the matching based on the corresponding point, and make a measurement of a positional relationship of the object to be measured with respect to the first installing point and the second installing point based on a matching image.Type: ApplicationFiled: December 9, 2019Publication date: June 11, 2020Inventors: Fumio Ohtomo, Kaoru Kumagai, Tetsuji Anai