Patent ID: 11965319
Assignee: KOMATSU LTD.
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E  G

Claim 18:
19. A method executed by a processor for calibrating a work machine by using an external measurement apparatus, the work machine including a vehicle body, a work implement attached to the vehicle body, an attitude sensor that outputs attitude data indicative of an attitude of the vehicle body, a positional sensor attached to the vehicle body, a crawler belt, and a sprocket for driving the crawler belt, the method comprising:
acquiring the attitude data;
acquiring calibration data including
a position of a predetermined measurement point on the work machine measured by the external measurement apparatus, the measurement point being included on the sprocket, and
a position of the positional sensor measured by the external measurement apparatus; and

calibrating machine data indicative of the position of the positional sensor in a vehicle body coordinate system, based on the calibration data and the attitude data.