The paper first generalizes basic substance and mechanism layout of sins . the hardware component and function of the embedded navigation computer control system based on pc / l04 bus technique is introduced . the paper majors in designing and realizing software of the sins based on the dos operation system 本文首先简要地分析了惯导系统的基本工作原理，给出了惯导系统的机械编排，介绍了基于pc / 104总线技术的嵌入式导航计算机控制系统的硬件组成、结构和功能。
