US 11,891,783 B2Granted

Calibration work support system

AssigneeHitachi Construction Machinery Co., Ltd.

InventorsKenta Nakagi, Yasuhiko Kanari, Shiho Izumi

Life of this patent

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Abstract

A calibration work support system includes an input device for inputting machine information including machine rank data on a hydraulic excavator and specification data on a front work implement, a display controller that generates a target posture image that is an image of the case in which the front work implement that takes target measurement posture is viewed with a point-of-view position and a line-of-sight direction of an operator M on the basis of the machine information input from the input device and target posture data defined in advance as the target measurement posture of the front work implement when an inertial measurement device is calibrated, and an HMD that displays the target posture image generated in the display controller. The HMD executes displaying in such a manner that the target posture image is superimposed on the actual front work implement viewed with the point-of-view position and the line-of-sight direction of the operator M.

Claims4

Dependent claims

A calibration work support system that supports calibration work of an inertial measurement device attached to a work device included in a work machine, the calibration work support system comprising:

an input device for inputting machine information including machine rank data on the work machine and specification data on the work device,
a controller configured to generate a target posture image that is an image of a case in which the work device that takes target measurement posture is viewed from a predetermined point-of-view position in a predetermined line-of-sight direction on a basis of the machine information input from the input device and target posture data defined in advance as the target measurement posture of the work device when the inertial measurement device is calibrated, and
a display device that displays the target posture image generated in the controller, wherein
the display device is configured to be capable of superimposing the target posture image on the work device that is actual and is viewed from the predetermined point-of-view position in the predetermined line-of-sight direction.

1 more element

Dependencies are inferred from the claim text.

Facts

Application: 17/274,828Filed 29 Jan 2020
Priority: JP 2019-05926726 Mar 2019
Published: US 2022/0018098 A120 Jan 2022
Granted: 6 Feb 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification25 codes

E02F 9/264
Indicating devices: sensors and their calibration for indicating the position of the work tool
G01B 11/00
Measuring arrangements characterised by the use of optical techniques
G01C 15/00
Surveying instruments or accessories not provided for in groups g01c1/00 - g01c13/00
G01P 21/00
Testing or calibrating of apparatus or devices covered by the preceding groups