Dynamische Positionierungsarchitektur

摘要

The present invention provides an architecture for integrating an inertial navigation system (INS) into a dynamic positioning (DP) system for a vessel. The architecture includes an INS unit (6) and a DP system (1) having a Kalman filter (2) or other algorithm for combining data supplied by a plurality of position measuring equipment (PME) and the INS unit (6) to derive an estimate of the position or speed of the vessel. A switch array (10) is operable under the control of a switch array controller (8) to supply data supplied by one or more of the plurality of position measuring equipment to the INS unit (6) for the purposes of correcting drift. The selection of which of the one or more PME is/are to be combined with the INS unit (6) is made automatically, in real time, to dynamically optimise the DP system (1).