Position detection device and method for detecting the position of a bucket of an excavator: Fid-Bau Portal

Position detection device and method for detecting the position of a bucket of an excavator

HARTVIG ANDERSEN KASPER

A position detection device (2) for detecting the position of a bucket (4) of an ex- cavator (6) having a cab (32) and one or more booms (8) is disclosed. The exca- vator (6) comprises a first boom (8) being rotatably attached to the cab (32) by means of a mounting structure (12) that is rotatably attached to the cab (32) by means of a shaft (14) having a longitudinal axis (X) extending basically vertically during normal use of the excavator (6). The bucket (4) is rotatably mounted to a stick (24), said stick (24) being rotatably attached to either the first boom (8) or a second boom being rotatably attached to the first boom (8). The cab (32) has a longitudinal axis (Y) and a lateral axis (X) extending perpendicular thereto. The mounting structure (12) is arranged and configured to allow the first boom (8) to be rotated with respect to the longitudinal axis (Z) of the shaft (14). The position detection device (2) comprises one or more antennas (20) arranged and config- ured to receive satellite signals from one or more satellites. The position detection device (2) comprises a sensor assembly (10) configured to detect the angular position (α) of the first boom (8) with respect to rotation about the longitudinal axis (Z) of the shaft (14).

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