“…Numerical simulation of flow module is constructed based on CAD drawings, measured discharge, water level, gradient and other channel information with the equations of mass conservation and momentum conservation. AIS message parsing module takes AIS serial data as input to parse ship dynamic and static information [4] , in succession, ship model database module queries and matches ship models based on actual demands. visualization& visualization module integrates three-dimensional terrain model, topic database model, numerical simulation of flow model, AIS message parsing module and ship model database together, and display all kinds of data comprehensively.3D display and query platform superimposes related attribute, control information and decision-making information into the associated visual results, and provides display and query service.3D Roam module could provide three roaming modes(i.e.…”