| 摘要 |
A method of steering a ground working tool of a dredger implement, in which the position of a starting point of the dredger implement with respect to a work co-ordinate system is determined and in which the relative position of the tool with respect to the starting point is calculated by calculating, each time, the projections of the length of each one of a plurality of parts of the dredger implement extending in series between the tool and the starting point onto a co-ordinate system of the implement as a function of two angles measured in orthogonal planes parallel to an axis of the implement co-ordinate system and included between the direction of length of said part and a plane of the implement co-ordinate system and by algebraically summing the calculated projections of the same nature in the implement co-ordinate system and in which the position of the tool with respect to the work co-ordinate system is assessed by rotating the relative position of the tool with respect to the starting point from the implement co-ordinate system into the work co-ordinate system. |
