基于PXI总线的指控通信装备综合检测系统设计与实现

发布时间：2018-10-13 13:12

【摘要】：PXI(PCI eXtension for Instrumentation)测试总线平台，以其高可靠性、高能力的数据传输带宽及开放性、模块化、通用化和系列化等优点，已成为现代自动化测试系统的主流平台。因此，基于PXI总线的测试系统，广泛应用于生产测试、军事和航空航天、机器监测、自动化和工业测试。本论文结合PXI总线技术，设计成功了指控通信（习惯上，简称通指）装备综合测试系统，基于此，研制出了一系列满足PXI总线标准的检测板卡。本文首先分析了军用通指装备国内外检测系统发展现状及其课题的研究背景，，然后对测试总线技术进行了对比分析研究，选取了基于PXI总线构建通指装备综合检测系统。为此，本论文重点从机械特性、电气特性和软件特性三个方面，阐述了PXI总线的原理，结合PXI总线架构，对系统进行了功能、性能、环境等需求分析。在此基础上，提出了综合检测系统总体硬件设计方案。依据该方案，完成了PXI检测板卡的设计与实现，主要包括：（1）在硬件上，针对PXI总线多种实现方案，进行了分析比较研究，选取了FPGA加专用接口芯片方案，共同实现板卡的PXI接口功能。（2）详细阐述了PXI总线接口的电路原理图、专用接口芯片的功能及用法和配置电路的实现；同时，对检测板卡其他硬件功能包括CPU模块硬件设计、板卡电源电路、时钟电路、接口功能电路以及板卡的PCB设计等进行了较为详细的分析与研究。（3）在上述硬件设计的基础上，通过对软件知识的消化吸收，给出了综合检测系统的软件架构。基此，阐述了软件架构中各部分的功能原理与实现方式。采用DriverWorks驱动开发工具，完成了相关硬件设备的驱动程序；采用LabVIEW，实现了界面软件的开发；在FPGA中，实现了与PCI本地总线数据传输通信功能。本论文上述研究工作，经过实际测试和用户实验表明，本测试系统，能够实现互联网控制器、多业务传输设备、网络控制器、综合接口传输设备、信道控制器、中心控制盒等设备的V接口，音频接口、K接口、E1接口、A接口、远传接口、光接口、RS232接口、RS422接口、V35接口、V24接口和以太网接口的测试；且测试结果稳定可靠，系统的各项指标和功能，均满足客户要求。
[Abstract]:PXI (PCI eXtension for Instrumentation) test bus platform has become the mainstream platform of modern automated test system because of its high reliability, high capability data transmission bandwidth and openness, modularization, generalization and serialization. Therefore, the test system based on PXI bus is widely used in production testing, military and aerospace, machine monitoring, automation and industrial testing. Combined with PXI bus technology, this paper has successfully designed the equipment comprehensive test system of command communication. Based on this, a series of test boards that meet the PXI bus standard have been developed. In this paper, firstly, the current situation and research background of military generic equipment testing system at home and abroad are analyzed, then the test bus technology is compared and analyzed, and a comprehensive testing system of general finger equipment based on PXI bus is selected. In this paper, the principle of PXI bus is expounded from three aspects: mechanical characteristic, electrical characteristic and software characteristic. Combined with PXI bus architecture, the function, performance and environment of the system are analyzed. On this basis, the overall hardware design of the integrated detection system is proposed. According to this scheme, the design and implementation of PXI detection board are completed. The main contents are as follows: (1) in terms of hardware, this paper analyzes and compares the implementation schemes of PXI bus, and selects the scheme of FPGA plus special interface chip. The PXI interface function of board card is realized together. (2) the circuit schematic diagram of PXI bus interface, the function and usage of special interface chip and the realization of configuration circuit are expounded in detail. Other hardware functions of the test board include CPU module hardware design, board power circuit, clock circuit, The interface function circuit and the PCB design of the board are analyzed and studied in detail. (3) based on the above hardware design, the software architecture of the integrated detection system is given by digesting and absorbing the software knowledge. Based on this, the function principle and realization mode of each part of the software architecture are expounded. The driver of related hardware device is completed by using DriverWorks driver development tool, the interface software is developed by LabVIEW, and the communication function of local data transmission with PCI bus is realized in FPGA. The above research work in this paper shows that the test system can realize Internet controller, multi-service transmission equipment, network controller, integrated interface transmission equipment, channel controller, and so on. The test results of V interface, audio interface, K interface, E1 interface, A interface, remote transmission interface, optical interface, RS232 interface, RS422 interface, V35 interface, V24 interface and Ethernet interface are stable and reliable. All indexes and functions of the system meet the requirements of customers.
【学位授予单位】：重庆大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TP274;TP336

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