| 摘要 |
The invention relates to a machine, comprising a base frame (10) and a position detection system (4) for determining the position of at least one measurement point that can be moved in relation to the base frame (10) in two or three dimensions, in particular at a mast tip (15) of an articulated mast (10a) having a plurality of mast segments (11, 12, 13, 14) articulated to each other, wherein the position detection system (4) comprises a plurality of at least three transmitting/receiving units (A, B, C, D, E) and an evaluating unit (3), which is connected to the transmitting/receiving units (A, B, C, D, E) and is designed to evaluate measurement signals of the transmitting/receiving units (A, B, C, D, E) and to derive the actual position of the measurement point from the measurement signals. The problem addressed by the invention is that of providing a machine for which the position of a measurement point that can be moved in two or three dimensions can be determined simply and with the highest possibly accuracy. This problem is solved in that the transmitting/receiving units (A, B, C, D, E) are designed to communicate with each other and to produce a measurement signal therefrom, from which measurement signal the distance between a pair of the transmitting/receiving units (A, B, C, D, E) can be derived, wherein the evaluating unit (3) is designed to derive the actual position of the measurement point from the measurement signals by triangulation. |
