基于ATML的机载电子系统原位测试系统设计与实现

针对直升机机载电子系统在执行任务过程中故障检测和隔离困难，外场维修保障效率低下，且缺乏快速有效故障检测工具现状的问题，设计了基于ATML标准的机载电子系统原位测试系统。阐述了原位测试系统的基本组成、工作原理、硬件结构、软件架构和测试电缆转接设计方法，以某型机载配电系统为案例进行原位测试需求分析及测试方案设计。利用基于ATML标准的测试软件平台SGTS进行原位测试程序开发，并将该方法应用至某型直升机原位测试系统研制。经实际验证，该原位测试系统的使用大幅提升了机载电子系统的故障检测与隔离率指标，为直升机外场排故提供了有效便捷的手段，提高了外场维护效率。

Design and Implementation of In-situ Testing System for Airborne Electronic Systems Based on ATML

In view of the difficulties in fault detection and isolation of helicopter airborne electronic system during the process of performing tasks, the low efficiency of maintenance support?in far-field, and the lacking of effective fault-detection tools, an in-situ testing system for airborne electronic system is designed based on ATML. The basic composition, working principle, hardware structure, software architecture and cable switching design method are described. Taking an airborne power distribution system as a case study to design the in-situ testing requirements analysis and test plan. After that, the the development method of test programs based on the testing software platform SGTS which using the ATML standard is developed. Furthermore, this method is applied to the development of an in-situ testing system for a certain type of helicopter. After practical verification, the using of this in-situ testing system has significantly improved the fault detection and isolation indicators of airborne electronic systems, and providing an effective and convenient means for helicopter field troubleshooting, on which improves the efficiency of field-maintenance.