公开(公告)号：US20210096252A1

公开(公告)日：2021-04-01

申请号：US17023416

申请日：2020-09-17

Applicant: Topcon Corporation

Inventor： You SASAKI

IPC: G01S17/50 ,  G06T17/00 ,  G01S17/894 ,  E21B47/09 ,  E21B47/04

Abstract: A technique enables easy quantitative evaluation for drilling operations. A civil engineering work data processing device includes a positioning data receiving unit, a three-dimensional model estimating unit, and a drilled depth calculator. The positioning data receiving unit receives positioning data obtained by performing positioning using laser light, on a drilling rod. The three-dimensional model estimating unit estimates a three-dimensional model of the drilling rod, on the basis of the positioning data. The drilled depth calculator calculates a depth of a hole generated in a civil engineering work target by the drilling rod, on the basis of the estimated three-dimensional model.

公开(公告)号：US20190234733A1

公开(公告)日：2019-08-01

申请号：US16255235

申请日：2019-01-23

Applicant: TOPCON CORPORATION

Inventor： Nobuyuki NISHITA ,  You SASAKI

IPC: G01C15/00 ,  G01C11/02 ,  G01C11/18 ,  G01C3/02 ,  G01S17/89

CPC classification number: G01C15/006 ,  B64D43/00 ,  G01C3/02 ,  G01C11/025 ,  G01C11/18 ,  G01S17/89

Abstract: The survey system includes a mobile body equipped with a scanner configured to perform scanning by a distance measuring light, a position measuring device configured to measure a position of the scanner, and a posture detecting device configured to detect a posture of the scanner, the posture detecting device includes an imaging unit configured to periodically acquire image data, a 3-axis angular velocity sensor configured to detect 3-axis posture angles of the scanner, and an arithmetic control unit, and the arithmetic control unit is configured to calculate posture information of the scanner by summing photographing-time 3-axis posture angles (SP0, SP1, SPn) of the scanner acquired in each photographing by image analysis of the image data, and 3-axis posture relative displacement angles of the scanner calculated from detection values of the 3-axis angular velocity sensor.

公开(公告)号：US20190103032A1

公开(公告)日：2019-04-04

申请号：US16147992

申请日：2018-10-01

Applicant: TOPCON CORPORATION

Inventor： You SASAKI

IPC: G08G5/02 ,  G08G5/00 ,  B64C39/02

Abstract: Disclosed is a path selection device for unmanned aerial vehicle, comprising: a landing position information receiving portion that receives a landing position; a vehicle body position information receiving portion that receives the current position of the unmanned aerial vehicle; a scanned data receiving portion capable of receiving three-dimensional scanned data on a scanned target acquired by scanning by a laser scanner comprised in the unmanned aerial vehicle; a scan map creating portion that creates a three-dimensional map based on the three-dimensional scanned data received by the scanned data receiving portion; a no-fly place extracting portion that extracts a no-fly place forming a flight obstacle in the three-dimensional map; and a path selecting portion that selects, in the three-dimensional map, a flight path of the unmanned aerial vehicle which is from the current position to the landing position and in which the no-fly place can be avoided.

公开(公告)号：US20160377707A1

公开(公告)日：2016-12-29

申请号：US15187291

申请日：2016-06-20

Applicant: TOPCON CORPORATION

Inventor： You SASAKI ,  Tadayuki ITO

IPC: G01S7/481 ,  G01S17/89 ,  G01S7/497

CPC classification number: G01S17/89 ,  G01S7/486 ,  G01S7/4912 ,  G01S7/497 ,  G01S17/023 ,  G01S17/42

Abstract: Detection of sunlight as noise is avoided in obtaining point clouds by using a laser scanner. A laser scanner controlling device includes a sun direction calculating unit 115, a brightness measuring unit 116, and a scan condition setting unit 118. The sun direction calculating unit 115 calculates the direction of the sun. The brightness measuring unit 116 measures the brightness of an image that contains the direction of the sun. The scan condition setting unit 118 sets a condition for restricting laser scanning in the direction of the sun when the brightness is not less than a predetermined threshold value.

Abstract translation: 通过使用激光扫描仪避免在获得点云时检测阳光作为噪声。 激光扫描器控制装置包括太阳方向计算单元115，亮度测量单元116和扫描条件设置单元118.太阳方向计算单元115计算太阳的方向。 亮度测量单元116测量包含太阳方向的图像的亮度。 当亮度不小于预定阈值时，扫描条件设置单元118设置用于限制在太阳方向上的激光扫描的条件。