Software Design Of Platform Inertial Navigation System

It is very boortan for our counny naval bullding to develop ship inertialnavigation system(SINS) which has miniaturiZaion, well price and accuracyAimed at a practical engineering project, the paPer completes design andrealization of platform inertial navigation system.The paPer first generalizes basic substance and mechanism layout of SINS.The hardware component and function of the embedded navigation computercontrol system based on PC/l04 bus technique is introduced. The paPer majors indesigning and realizing software of the SINS based on the DOS operation system.To complete Mu1titaSk real-time control under the DOS operation system which isa simple taSk system, the paPer introduces mechamsm of event driven, andpresents a fundarnental model to describe the prograrnming of real-time controlsystem. The model of programming has been applied to software design of thenavigation system. and to manage multitask which sa1isfy the need of real~timeand multitask control for the SINS.Meanwhile. considering that the work of human graphic interface is hard andrepeating, the paper develops a window system supporting Chinese display withthe method of object-oriented programming. Advanced ideas of graPhicprogramming in Windows and X Window are introduced to design of the windowsystem. Now the window system is aPplied successfully to developing practicaland reliable graPhic interfaces of the SINS.We test tWo work states in the experiment. The results prove that the mathmodel come true in the software system.