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公开(公告)号：US20220397481A1
公开(公告)日：2022-12-15
申请号：US17806088
申请日：2022-06-09
Applicant: Topcon Corporation
Inventor： You SASAKI
Abstract: A prism constant can be obtained more efficiently, using a laser positioning device including an image data obtaining portion obtaining an image data which is obtained by photographing a reflection prism device, a data storing portion storing a relationship of a prism constant of the reflection prism device and the image data, and a prism constant obtaining portion obtaining the prism constant of the reflection prism device based on the relationship.
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公开(公告)号：US20210033394A1
公开(公告)日：2021-02-04
申请号：US16917941
申请日：2020-07-01
Applicant: Topcon Corporation
Inventor： You SASAKI
Abstract: Reselection of an instrument point due to limited emission range of scanning laser light is performed with decreased burden. A total station equipped with a laser scanner has a combined structure of a total station and a laser scanner. The total station equipped with the laser scanner includes a point cloud data acquiring unit, a distance acquiring unit, and an instrument point calculator. The point cloud data acquiring unit acquires point cloud data that is obtained in laser scanning performed by the laser scanner set up at a first instrument point. The distance acquiring unit acquires a distance to the laser scanner of each point in the point cloud data. The instrument point calculator calculates a location of a second instrument point on the basis of an upper limit of the distance.
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13.发明申请公开(公告)号：US20190145769A1
公开(公告)日：2019-05-16
申请号：US16168924
申请日：2018-10-24
Applicant: TOPCON CORPORATION
Inventor： You SASAKI , Yasushi TANAKA , Nobuyuki NISHITA
Abstract: A technique is provided to enable check of a calibrated condition of a total station (TS) having a laser scanner in a surveying site. The TS includes an optical system for sighting an object, a laser positioning part that irradiates the object with laser light via the optical system to position the object, and a plane crossing location identifying part that identifies a crossing location of multiple planes constituting a three-dimensional structure as a first location, on the basis of the positioning result from the laser positioning part. The TS also includes a laser scanner that performs laser scanning in an area containing the crossing location, a plane crossing location calculator that calculates the crossing location as a second location on the basis of laser scanning data from the laser scanner, and a comparing part that compares the first location and the second location with each other.
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14.发明申请公开(公告)号：US20190114929A1
公开(公告)日：2019-04-18
申请号：US16157610
申请日：2018-10-11
Applicant: TOPCON CORPORATION
Inventor： You SASAKI
Abstract: Provided is a technique for controlling an unmanned aerial vehicle in flight according to a battery level. A drone control device controls a drone according to a battery level, including: a flight distance calculation unit, calculating a flight distance according to an airframe position at any time point and a landing place of the drone; a battery status acquisition unit, acquiring the battery level of the drone; an estimated battery consumption calculation unit, calculating an estimated battery consumption when the drone flies over the flight distance calculated by the flight distance calculation unit; and a return decision unit, deciding, on the basis of the battery level of the drone and the estimated battery consumption, whether the drone is capable of flying over the flight distance and return.
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公开(公告)号：US20190086548A1
公开(公告)日：2019-03-21
申请号：US16129960
申请日：2018-09-13
Applicant: TOPCON CORPORATION
Inventor： Nobuyuki NISHITA , You SASAKI
Abstract: A technique is provided for measuring attitude of an aerial vehicle without using an IMU. A total station (TS) for tracking a UAV includes a laser scanner. The laser scanner is made to emit laser scanning light to the UAV that is flying. The UAV has four identifiable targets, and identification and locating of the four targets are performed by means of laser scanning. The attitude of the UAV is calculated on the basis of the locations of the four targets.
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Patent Agency Ranking
公开(公告)号：US20180321364A1
公开(公告)日：2018-11-08
申请号：US15850212
申请日：2017-12-21
Applicant: Topcon Corporation
Inventor： You SASAKI , Tadayuki ITO
Abstract: A method for calibrating unevenness of a plurally of measuring elements in an apparatus for evaluating road surface property having a plurality of measuring elements repeats steps of computing separation quantities from a calibration reference plane on a reference area regarding all measuring elements: determining a measuring element where the separation quantity is maximum from among all the measuring element to calibrate the measuring element such that a difference between point cloud data produced from a measurement value of the measuring element where the separation quantity is maximum and the calibration reference plane becomes equal or less than a predetermined value, producing a new calibration reference plane from the measurement values of the measuring elements including the calibrated measuring element, until RMS of point cloud data does not change.
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公开(公告)号：US20180274920A1
公开(公告)日：2018-09-27
申请号：US15923104
申请日：2018-03-16
Applicant: TOPCON CORPORATION
Inventor： You SASAKI
CPC classification number: G01C11/06 , G06K9/0063 , G06K9/2063 , G06T7/73 , G06T7/97 , G06T2207/10032 , G06T2207/30181 , G06T2207/30204
Abstract: Highly accurate aerial photogrammetry is performed while avoiding increase in cost. A survey data processing device includes an image data receiving part, a location data receiving part, an identification marker detecting part, an identifying part, and a location identifying part. The image data receiving part receives image data of aerial photographs of vehicles. The vehicles are equipped with GNSS location identifying units and identification markers, respectively. The location data receiving part receives location data of the vehicles that are identified by the respective GNSS location identifying units. The identification marker detecting part detects the identification markers of the vehicles from the image data. The identifying part identifies each of the vehicles in the aerial photographs. The location identifying part identifies locations of ground control points (GCPs) in the aerial photographs by using the location data of the vehicles and by using the identification information.
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公开(公告)号：US20230314610A1
公开(公告)日：2023-10-05
申请号：US18187694
申请日：2023-03-22
Applicant: TOPCON CORPORATION
Inventor： Satoshi YANOBE , Kenichiro YOSHINO , You SASAKI
CPC classification number: G01S17/10 , G01C15/002 , G01C3/08
Abstract: Effects of multiple reflections in distance measurement using a laser are reduced. A surveying method for measuring a distance to a reflection point that reflects distance measuring light, based on emission and reception of the distance measuring light, includes assuming that a symbol “K” represents a natural number, excluding zero, and determining whether a beam that is received after the (K+1)th light emission is a repeatedly reflected beam of light that has been emitted before the (K+1)th light emission. The beam that is received, after the (K+1)th light emission, at a time corresponding to a period based on a time interval from light emission at or before the Kth light emission until first reception of a beam related to the light emission at or before the Kth light emission, is determined as being the repeatedly reflected beam.
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公开(公告)号：US20220404147A1
公开(公告)日：2022-12-22
申请号：US17807294
申请日：2022-06-16
Applicant: Topcon Corporation
Inventor： You SASAKI
Abstract: In order to monitor operation situations of site resources at a construction site efficiently, a measuring system uses a surveying apparatus 100 including a camera and a position-determining function using laser light, and the measuring system includes a photographing means for continuously photographing construction machines 201 to 204 which are site resources for performing operations at a construction site by the camera, a recognizing means recognizing the site resources in photographed images obtained by the photographing, a tracking means for tracking the image of the site resources recognized in the multiple photographed images obtained by the continuous photographing, and a position-determining means collimating to the site resources which are objects for the tracking, and determining the positions of site resources by the position-determining function, in which the determining of positions is performed multiple times at intervals.
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公开(公告)号：US20210055103A1
公开(公告)日：2021-02-25
申请号：US16982837
申请日：2019-03-25
Applicant: Topcon Corporation
Inventor： You SASAKI
Abstract: A target device 20 includes: a prism 22 configured to reflect light incident on the prism in a direction identical to a direction of incidence of the light; a support part 21 configured to support the prism 22; and a plurality of direction indicators 23 formed on the prism 22 to indicate a direction of the prism. A surveying system 1 includes the target device 20 attached to a camera 11 of a UAV 10, and a surveying device 3 surveying the prism 22 as a target and taking a target image Tp including the prism 22 to detect the orientation of the UAV 10 based on the direction indicators 23 appearing in the target image.
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