摘要伴随着科技时代以及军事革命的发展,现代人类军事竞争进入数字信息化时代。雷达,作为现代军事竞争中的必不可少的工具,随着技术的发展以及技术指标的提高,已经发展的越来越复杂,越来越精密,设备的文护问题也越来越突出,由此,研究专业的自动化测试诊断系统已经成为迫在眉睫的需求,这对于雷达的安全性、可靠性与寿命是非常关键的。本文针对某雷达设备的检修与文护,设计了可以检测设备中多种电路板故障的故障诊断仪,主要工作:(1)完成了基于 cycloneⅢ FPGA 和 ARM 的信号产生单元硬件电路的设计及调试;(2)完成终端界面软件开发;(3)整机测试,对雷达电路板故障进行诊断,并完成对诊断结果的存档。 30908 毕业论文关键词 电路设计 故障诊断 ARM FPGA 界面开发
Title Design and realization of the circuit board fault diagnosis instrument
Abstract With the development of science times, technology and military revolution, modern military competition enters the era of digital information. Radar, as an indispensable tool in the modern military competition, with the improvement of technology and strict technical requirements, is more and more complex and precise. The problem of equipment maintenance is more and more outstanding. Thus, studies of professional automatic system to diagnose faults are urgently demanded. These studies are crucial to the safety, reliability and service life of the radar. In this paper, the fault diagnosis is designed for the equipment of radars maintenance, which can test equipment in a variety of circuit boards. The main work is as follow: (1) The design and debugging for the hardware circuit of the signal generation unit based on cyclone III FPGA and ARM are completed; (2) The design of the terminal interface software is completed; (3) Complete the whole test to diagnose the faults of the radar circuit board, and the results of the fault diagnosis are saved.
Keywords Circuit design Fault diagnosis ARM FPGA Interface design
目录
1绪论1
1.1背景及研究意义.1
1.2国内外研究现状.1
1.3发展趋势...2
1.4本论文结果与内容概述...2
2诊断仪总体设计...4
2.1电路板故障诊断仪框图...4
2.2电源单元...4
2.3信号产生单元...5
2.3.1组成框架..5
2.3.2主要技术指标..5
2.3.3信号产生板的具体功能..6
2.4数据采集单元...9
2.5显控单元..10
3信号产生单元电路设计12
3.1总体框图..12
3.2ARM系统电路设计...12
3.2.1供电电路.13
3.2.2存储电路设计.15
3.2.3JTAG调试模块16
3.2.4时钟和复位电路...17
3.2.5以太网接口...18
3.2.6串行接口.19
3.2.7D/A电路.19
3.3FPGA系统电路设计.19
3.3.1配置电路.20
3.3.2D/A电路.21
3.4PCB设计...22
4软件部分设计24
4.1ARM主程序流程.24
4.2终端软件程序设计..27
4.2.1软件终端界面开发工具MFC.27
4.2.2终端界面设计.27
4.2.3网络通信模块程序设计.29
4.2.4终端软件程序工作流程.30
5测试结果...34
结论..38
致谢..39
参考文献...40