-
公开(公告)号：US11629957B2
公开(公告)日：2023-04-18
申请号：US16916183
申请日：2020-06-30
Applicant: Topcon Corporation
Inventor： You Sasaki
Abstract: A surveying apparatus has a combined structure of a total station and a laser scanner. The surveying apparatus includes a point cloud data acquiring unit, an abnormal part detecting unit, an abnormal part position acquiring unit, and an automatic sighting controller. The point cloud data acquiring unit acquires first point cloud data and second point cloud data obtained by laser scanning that is performed on an object to be inspected at a time interval. The abnormal part detecting unit calculates a difference between the first and second point cloud data to detect a part of the object to be inspected, at which position information varies, as a detailed-inspection target part. The abnormal part position acquiring unit acquires a position of the detailed-inspection target part. The automatic sighting controller controls to make the total station sight the detailed-inspection target part, based on the position of the detailed-inspection target part.
-
公开(公告)号：US11592291B2
公开(公告)日：2023-02-28
申请号：US16442616
申请日：2019-06-17
Applicant: TOPCON CORPORATION
Inventor： You Sasaki
Abstract: Detection of a target by a surveying device is automated to achieve simple work. A surveying method uses a surveying device for detecting and identifying a target device having an entire circumference reflection prism and a code display that is arranged in a vertical direction. The surveying device has a laser scanner configured to perform laser scanning along a vertical plane while horizontally rotating. The surveying method includes performing laser scanning by emitting laser scanning light along the vertical plane while making the surveying device horizontally rotate, and detecting the code display on the basis of the laser scanning light that is reflected back.
-
23.发明授权公开(公告)号：US11302203B2
公开(公告)日：2022-04-12
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.
-
公开(公告)号：US10969493B2
公开(公告)日：2021-04-06
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 a highly accurate 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.
-
公开(公告)号：US10551188B2
公开(公告)日：2020-02-04
申请号：US16244244
申请日：2019-01-10
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Kazunori Sato
Abstract: Providing a three-dimensional surveying device and method capable of stably acquiring three-dimensional data with high accuracy. The device includes a mobile body, a measurement target, a collimation distance measuring unit fixed to the mobile body, a scanner unit, and a control computation section. The scanner unit is provided integrally and rotatably with respect to the collimation distance measuring unit. The control computation section is configured to calculate a coordinate value of a measurement center of the collimation distance measuring unit based on a distance measured by the collimation distance measuring unit, a first horizontal and first vertical angle, and to calculate a coordinate value of a measurement target object based on the coordinate value of the measurement center, an external orientation element of the scanner unit with respect to the collimation distance measuring unit, a distance measured by the scanner unit and a second horizontal and second vertical angle.
-
Patent Agency Ranking
公开(公告)号：US10247831B2
公开(公告)日：2019-04-02
申请号：US15193824
申请日：2016-06-27
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Tadayuki Ito
IPC: G01S19/42
Abstract: A navigation signal processing device includes circuitry configured to perform positioning of an antenna based on navigation signals received by the antenna from navigation satellites, set an elevation angle mask that causes inhibition of utilization of the navigation signals that are received from a specific angle range as viewed from the antenna in the positioning of the antenna, and obtain three-dimensional point cloud position data that includes data of multiple points of the surroundings as viewed from the antenna. The multiple points are obtained by a laser scanner or a stereoscopic camera and have determined three-dimensional coordinates. The circuitry is further configured to set the elevation angle mask that causes inhibition of utilization of the navigation signals that are received from a straight line direction connecting the antenna and each of the multiple points of the three-dimensional point cloud position data as viewed from the antenna.
-
公开(公告)号：US20170307368A1
公开(公告)日：2017-10-26
申请号：US15423785
申请日：2017-02-03
Applicant: TOPCON CORPORATION
Inventor： You Sasaki , Tadayuki Ito
Abstract: To rapidly and reliably measure a road surface property using measurement results and determination results of a road surface in the past. A vehicle mounted with a road surface property acquiring device is guided to a specified point on a road and measurement is carried out. The past road surface data on a past road surface property is acquired, a present position of the vehicle is acquired, and a past road surface property image representing a feature amount of the road surface property in a range including the present position created based on the past road surface data is displayed; and the vehicle is guided from the present position to a specified area while measuring a state of the road surface with the road surface property acquiring device.
-
公开(公告)号：US12192638B2
公开(公告)日：2025-01-07
申请号：US18165354
申请日：2023-02-07
Applicant: TOPCON CORPORATION
Inventor： You Sasaki
IPC: H04N23/698 , G01S7/481 , G01S17/86 , G01S17/89
Abstract: Efficiency of a technique for performing laser scanning and photography simultaneously is improved. A laser scanning apparatus includes a horizontally rotatable horizontal rotation unit, a rotation controller, and a processor or circuitry. The horizontal rotation unit includes cameras and a vertical rotation unit that performs laser scanning in an upper-lower direction. The rotation controller controls rotation of the horizontal rotation unit. The processor or circuitry performs a process of not selecting some pieces of laser scanning data that is obtained by laser scanning in the upper-lower direction. Laser scanning and photography that uses the cameras are performed while the horizontal rotation unit is horizontally rotated. The rotation of the horizontal rotation unit is decelerated in performing photography. The processor or circuitry does not select some pieces of laser scanning data that are obtained by laser scanning in the upper-lower direction during the deceleration.
-
公开(公告)号：US11933611B2
公开(公告)日：2024-03-19
申请号：US17446836
申请日：2021-09-03
Applicant: Topcon Corporation
Inventor： You Sasaki
IPC: G01C11/02
CPC classification number: G01C11/025
Abstract: A technique enables a surveying device to acquire a direction of a target by using as little extra hardware as possible. A method aims a laser scanner, as a surveying device, at a reflective prism that is a target. The method includes obtaining a photographic image of the laser scanner that is captured by a smartphone from the reflective prism side and determining a direction of the reflective prism as seen from the laser scanner on the basis of the photographic image. The method also includes rotating the laser scanner to make the laser scanner face the reflective prism straight on, on the basis of the direction of the reflective prism as seen from the laser scanner.
-
30.发明授权公开(公告)号：US11619741B2
公开(公告)日：2023-04-04
申请号：US16994698
申请日：2020-08-17
Applicant: Topcon Corporation
Inventor： You Sasaki
Abstract: Point cloud data relating to a matching target is efficiently eliminated after completion of a process of matching between sets of point cloud data obtained at different viewpoints. The surveying data processing device includes a target detecting unit, a location acquiring unit, a point cloud data eliminating region setting unit, and a point cloud data eliminating unit. The target detecting unit detects a target in point cloud data. The point cloud data is obtained by emitting laser light on an object having the target and by detecting the light reflected back from the object. The target location acquiring unit acquires a location of the detected target. The point cloud data eliminating region setting unit sets a point cloud data eliminating region containing the target, based on the location of the target. The point cloud data eliminating unit eliminates point cloud data contained in the point cloud data eliminating region.
-
-
-
-
-
-
-
-
-
Search Results
34
records
(took 0.019 seconds)
