| 摘要 |
The invention relates to a device and to a method for determining the position for a working part of a tool on a working machine. A position determining apparatus is placed in a defined position on the working machine in order to determine the position of this place in a coordinate system fixed in space. The position-determining apparatus comprises partly a relatively slow determining device (1, 4; 1, 4a, 4b; 53, 50, 51), which at time intervals measures the actual position of the machine , and partly a relatively fast determining device (6; ACC1, ACC2) which reacts on position changes of the machine in order to calculate and up date the determination between the said time intervals.
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