Title:
ALTITUDE DIFFERENCE DETECTION METHOD, ALTITUDE DIFFERENCE DETECTION SYSTEM, AND ALTITUDE DIFFERENCE DETECTION PROGRAM
Document Type and Number:
Japanese Patent JP2020204601
Kind Code:
A
Abstract:
To enable a repair point that requires repair to be accurately specified at commencement of repair work.SOLUTION: An altitude difference detection method pertaining to the present invention comprises: a point cloud data acquisition step for acquiring, by a laser beam irradiated from a three-dimensional scanning device installed at a known point, the three-dimensionalized point cloud data of each point in a prescribed region of road surface at commencement of repair work; a base level data acquisition step for acquiring plan level data that indicates a repair plan level when the prescribed region is repaired; and an altitude difference calculation step for calculating an altitude difference for each of the same level position within the prescribed region on the basis of the point cloud data acquired in the point cloud data acquisition step and the plan level data acquired in the base level acquisition step.SELECTED DRAWING: Figure 1
Inventors:
KUSAKI SHIGEO
MORI YOSHIMITSU
MORI YOSHIMITSU
Application Number:
JP2019208282A
Publication Date:
December 24, 2020
Filing Date:
November 18, 2019
Export Citation:
Assignee:
MR SUPPORT CO LTD
International Classes:
G01C7/02; E01C23/00; G01S17/89
Domestic Patent References:
| JP2017138238A | 2017-08-10 | |||
| JP2014163707A | 2014-09-08 | |||
| JP2013113702A | 2013-06-10 | |||
| JP2015031018A | 2015-02-16 |
Attorney, Agent or Firm:
Masanori Onishi