Research And Implementation Of Ship Navigation Equipment Simulation System Based On Qt

With the development of navigation technology,Ship navigation system has become a multi-functional integrated navigation system which integrates various navigation devices.Modern ship navigation system consists of star sensors,AIS system,GPS receiver,inertial navigation system,integrated bridge system and other navigation equipment.Among them,the Integrated Bridge System can provide users with the comprehensive and the best ship navigation information,which plays a very important role in the ship navigation system.Therefore,testing the integrated bridge system comprehensively can improve equipment reliability and availability.Modern integrated bridge test system is generally composed of ship scenario simulation platform,navigation device simulation system,integrated bridge system.Therefore,the star sensor and strapdown inertial navigation simulation system are studied,which is of great significance for the test of the Integrated Bridge System,Training crew and reduce teaching cost.The following work is mainly completed in this paper:1.The functional requirements of star sensor and the strapdown inertial navigation simulation system is analyzed,and the overall design flow are gived in this paper.2.The working principle of the star sensor and strapdown inertial navigation system and the source of error in the practical work are analyzed and the mathematical model is established in this paper.Then,according to the mathematical model in Simulink environment to establish its simulation model.3.The simulation model is run in the Simulink environment,and the results are analyzed,which shows the effectiveness of the simulation model of each navigation device.4.The simulation model is converted into program code by using RTW real-time simulation technology.The simulation system can become a cross-platform system by modifying code in Qt environment.In order to make the simulation system can run normally,the human computer interface is design and ethernet communication is connected in this paper.Finally,Simulation system is run and the navigation data sent to integrated bridge system by connecting the scenario simulation platform.The requirement of the simulation system such as authenticity,cross-platform,interactive are met,and the simulation system has good application value.