Title:
CONSTRUCTION MACHINE AND CONSTRUCTION MACHINE MANAGEMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/270392
Kind Code:
A1
Abstract:
The present invention acquires soil quality information of the ground while an excavation work is performed at a work site. A hydraulic shovel (1) includes a work attachment (20), a driving unit (71), a load cell (61), a machine load calculation unit (503), an earth pressure load calculation unit (504), and a soil quality estimation unit (505). The machine load calculation unit (503) calculates, from posture information of the work attachment (20) and information about a load that the driving unit (71) receives, a machine load, which is a load that a bucket (23) receives from earth and sand. The earth pressure load calculation unit (504) calculates, from a shape of a soil mass formed by a soil dammed by the bucket (23), the posture information, the shape of the bucket (23), the density of the soil, a wall friction angle between the soil and the bucket (23), an earth pressure load, which is a load to be applied by the soil mass to the bucket (23) on the basis of an earth pressure theory. The soil quality estimation unit (505) estimates the soil quality of a soil at the work site on the basis of the machine load and the earth pressure load.
Inventors:
HASHIMOTO RYOTA
SHIMAZU YASUHIKO
YAMAGUCHI TAKUNORI
OKIMOTO SHO
KOIWAI KAZUSHIGE
SHIMAZU YASUHIKO
YAMAGUCHI TAKUNORI
OKIMOTO SHO
KOIWAI KAZUSHIGE
Application Number:
PCT/JP2022/024030
Publication Date:
December 29, 2022
Filing Date:
June 15, 2022
Export Citation:
Assignee:
UNIV HIROSHIMA (JP)
KOBELCO CONSTR MACH CO LTD (JP)
KOBELCO CONSTR MACH CO LTD (JP)
International Classes:
E02F9/26
Foreign References:
JP2019159727A | 2019-09-19 | |||
JP2020165254A | 2020-10-08 | |||
JP2019163621A | 2019-09-26 | |||
JP2002007029A | 2002-01-11 | |||
JP2019163621A | 2019-09-26 |
Attorney, Agent or Firm:
KOTANI, Masataka et al. (JP)
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