Study Of Distributed Ship Maneuver Simulation System

Developing a good performance ship autopilot is of significance in shipping and military affairs,to shipping,it can increase efficiency and save cost,and to military affairs,it can enhance warship performance,so the weapons can take more effect.Therefore,the development of ship autopilot has been paid much attention by experts around the world.The ship motion simulation platform studied in this paper is actually built for the test and development of ship autopilot.It combines the existing simulation platforms and makes improvement on it,so that the simulation platform can be suitable for the Windows operating system and its operation habits.It has realized interface with complete functions and simplified operation process,and makes the platform more practical be compatible with serial port communication function of former platform and add in CAN network communication function.This paper adopts simplified non-linear ship plane motion mathematical model, considering the disturbance of wind,wave and flow.On this base,the simulation platform has built each application module,including:single/double machine simulation module,data acquisition/replay module.Main job contains:carrying out the real-time dynamic rendering of track,rudder angle,helm order,rout error;realizing the double machine simulation telecommunication function which is coincidence with the NMEA0183/NMEA2000 protocol; realizing the auto produce function of default setting file,realizing the save function of parameter file,the file saving of the real time data,realizing the history data replaying function.This paper adopts vector graph display method to show each graph and curve, making announcement of an improved dynamic displaying method,realizing the dynamic displaying of track graph and optimizing the executing process of the program,increasing the real time performance.Based on dynamic displaying,this paper adds in shifting and zooming function,making the output of platform more lifelike and become ship motion simulation software with window operating style.