VXI总线在通信导航系统测试中的设计

在分析VXI(VME bus Extensions ForInstrumentation)总线技术基本原理与基本结构的基础上,从分析测试需求出发,给出了基于VXI总线飞机通信导航设备自动检测系统的硬件结构、测试资源配置、接口关系以及软件模块的设计.实验数据表明,与使用分离测试仪器相比,该系统在保证测试质量的同时,减少了无线电维护人员50%的工作量,并具有操作简明快捷、数据采集准确、处理速度高和防止误操作等优点,由于只需改变数据处理软件即可在VXI总线仪器中增加某个测试功能,该系统具有潜在的价格优势和很大的发展空间,对其他相关电子系统测试具有一定的扩展性.

Design of VXI bus in communication navigation testing system

Based on the analysis of the principle and structure of VXI(VME bus Extensions For Instrumentation)bus technology and the need of test, the hardware structure, test resource arrangement, interface relation and the design of software module of an aero communication and navigation auto-test system using VXI bus technology are given. The experiment data show that the system has the advantage of about 50% reduction of the maintenance personnel compared with using separated test apparatus in the precondition of good test quality. And it has some other advantages such as swift manipulation,accurate data collection,fast speed of the original data processing and avoiding mal-operation. Because it only needs to change the software to add a test function to the VXI bus system, the system also has the advantage of potential price and good future development.The system can be extended to other relevant electronic systems.