Title:
WORK MACHINE
Document Type and Number:
WIPO Patent Application WO/2022/049836
Kind Code:
A1
Abstract:
This work machine is provided with: a measurement sensor that measures a surface position of an object around the work machine as three-dimensional point group information having a plurality of layers in a vertical direction; and an object detection device that detects a detection target object around the work machine on the basis of the information from the measurement sensor. The object detection device: obtains the three-dimensional point group information measured by the measurement sensor; detects, with respect to a plurality of pieces of point data constituting the three-dimensional point group information, the point data measured for a microparticle, on the basis of a distance relationship of the point data of vertically adjacent layers from the measurement sensor and variation in difference in distance; deletes the point data detected as the microparticle from the three-dimensional point group information; and detects an object therearound on the basis of the three-dimensional point group information from which the point data of the microparticle has been deleted. This enables highly accurate detection of the detection target object.
Inventors:
KITAI SASUGA (JP)
BANDO MIKIO (JP)
OGATA TAKEHITO (JP)
UOTSU SHINICHI (JP)
BANDO MIKIO (JP)
OGATA TAKEHITO (JP)
UOTSU SHINICHI (JP)
Application Number:
PCT/JP2021/018284
Publication Date:
March 10, 2022
Filing Date:
May 13, 2021
Export Citation:
Assignee:
HITACHI CONSTRUCTION MACH CO (JP)
International Classes:
G05D1/02; G01S17/931
Foreign References:
| JP2019105654A | 2019-06-27 | |||
| JP2020125031A | 2020-08-20 | |||
| JP2019179512A | 2019-10-17 | |||
| JPH10153661A | 1998-06-09 | |||
| US20170023473A1 | 2017-01-26 | |||
| JP2019012063A | 2019-01-24 |
Attorney, Agent or Firm:
KAICHI IP (JP)
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