车载定位定向导航系统检测仪的设计与实现

本文针对车载定位定向导航系统的结构特点及其在性能检测和故障诊断方面存在的不足。在充分利用该系统现有硬件资源并且不改变其硬件结构的基础上研制了一种检测仪。该检测仪通过串行通信的方式获取导航系统惯性器件的状态数据．采用了基于BP神经网络的数据处理与故障诊断算法．实现了惯性器件的性能检测、故障诊断和检测数据存储等功能．显着提高了检测速度和故障诊断的准确辜。其检测原理为已有装备的性能检测和故障诊断提供了一种新思路。

Design and realization of detector for position and orientation navigation system for land vehicle

In accordance with the shortages about existing performance detection and fault diagnosis method of Position and Orientation Navigation System for Land Vehicle, a basic resolving solution is put forward and a handy detector is designed in this paper. The detector makes full use of the existing hardware resource of navigation system and doesn't change its hardware structure. It gets the state data of inertial units, adopts data processing and fault diagnosis arithmetic based on BP neural network. The detector can not only realize performance detection, fault diagnosis and saving data of inertial units, but also boost detecting speed and fault diagnosis' accurate rate obviously. The detecting principle provides a new method for existing equipments' performance detection and fault diagnosis.