基于PXI总线的某装备自动测试系统

采用PXI总线技术设计了某装备自动测试系统,介绍了硬件平台、接口适配器及测试软件系统的设计方案.工程应用表明,所研制的某装备自动测试系统提高了测试效率,降低了对维修人员的要求,具有重要的军事效益和经济效益.     

基于VXI总线的自动测试与故障诊断系统设计

按照通用化、模块化、标准化的原则,设计出基于 VXI 总线技术的导弹装备通用测试系统。利用专家系统,大大提高了系统检测的智能化和自动化程度。系统能够完成对多种导弹装备的测试任务,为导弹装备的通用测试研究提供了一个新的途径。     

基于PXI总线的某型装备自动测试系统

本文中介绍如何采用PXI总线和数据库技术构建某型装备自动测试系统,提出了测试系统平台、适配器和系统软件的设计方案,重点介绍了数据库技术在软件系统中的应用．在软件设计中,采用测试数据和测试流程相分离的结构,使系统具备了较强的通用性和可扩展性．     

弹体外形尺寸自动检测系统

针对某型炮弹装备的测试需求,采用自动检测方法,设计了一套结构简单的位移传感器、直线滑块和导轨组合的检测系统。介绍了系统的总体方案,分析了该测试系统的测试精度。使用结果表明该系统能准确的测量弹体的外形尺寸参数,为产品提供了一种实用检测系统,对同类项目有一定参考价值。     

基于PXI总线的某型装备自动测试系统

本文中介绍如何采用PXI总线和数据库技术构建某型装备自动测试系统,提出了测试系统平台、适配器和系统软件的设计方案,重点介绍了数据库技术在软件系统中的应用.在软件设计中,采用测试数据和测试流程相分离的结构,使系统具备了较强的通用性和可扩展性.     

通用检测系统中检测适配器及描述软件的研究

通用检测系统用于解决目前装备存在的系列问题,实现资源整合,检测适配器与描述软件是系统的重要组成部分。对适配器进行了详细介绍,包括适配器组成、电路设计原则等;描述软件用于提供测试所需的规范化描述并生成文档,包括被测对象信号与适配器描述、测试流程描述等。适配器有自检识别功能,保证平台安全运行;描述文档方便于测试软件的编写。在装备检测适配器及测试软件的配合下,检测系统可完成被测对象的性能测试与故障诊断。     

4G 网络装备车辆远程监控系统

摘要：为解决我军二代装备在状态感知、信息化自动化水平偏低的问题,设计一套基于ARM+4G+传感器架构 的车载远程监控系统。以非总线装备车辆作为研究对象,介绍系统硬件各模块的功能及实现流程,对车载终端装备 信息采集模块、数据传输模块和服务器端远程监控平台进行设计,完成系统总体搭建,并对系统进行实际测试。测 试结果表明,该系统能够很好地实现装备信息非接触采集与远程实时传输。     

某型装备继电器系统自动测试设备设计

由于部队缺乏某型装备继电器系统的自动测试设备,给该型装备的日常维护工作带来诸多不便,为此,综合集成多项成熟先进的测试软、硬件技术,设计出该型装备继电器系统的自动测试设备,实现了对继电器系统各部件的各项指标准确无误的测试及故障定位。     

遥码通信系统的反设计和国产化研究

为实现遥码通信系统的国产化功能替换,提出一种基于逆向工程方法和嵌入式控制技术的新思路。通过对原遥码通信系统的组成、功能分析和反设计,运用逆向工程方法和嵌入式控制技术,实现了遥码通信系统的国产化。在专用测试台上,对国产化遥码通信系统与原遥码通信系统进行了性能对比测试。试验结果证明：国产化遥码通信系统能够满足武器装备的正常使用要求,已成功应用于工厂装备修理和部队装备的维护保障,减少了对装备引进方的依赖,有效缩短了装备维修周期,节约了维修成本。     

遥码通信系统的反设计和国产化研究

为实现遥码通信系统的国产化功能替换,提出一种基于逆向工程方法和嵌入式控制技术的新思路。通过对原遥码通信系统的组成、功能分析和反设计,运用逆向工程方法和嵌入式控制技术,实现了遥码通信系统的国产化。在专用测试台上,对国产化遥码通信系统与原遥码通信系统进行了性能对比测试。试验结果证明：国产化遥码通信系统能够满足武器装备的正常使用要求,已成功应用于工厂装备修理和部队装备的维护保障,减少了对装备引进方的依赖,有效缩短了装备维修周期,节约了维修成本。     

Nitrosation and Nitration of Tetraacetyldibenzylhexaazaisowurtzitane

Tetraacetyldibenzylhitane (TADBIW) was subjected to debenzylation by nitrosating with inorganic materials available commercially to synthesize tetraacetyldinitrosohexaazaisowurtzitane (TADNSIW). TADNSIW was purified, and its structure was determined by FTIR, 1H NMR, MS and element analysis. The debenzylation reaction of TADBIW gave quantitative benzaldehyde as a by-product. This indicates that the reaction produces an imine cation as an intermediate. Hexanitrohexaazaisowurtzitane (HNIW) was prepared from unpurified TADNSIW with the yield over 96.0 % and the purity more than 98.0 %. And the mechanism of the reaction from TADNSIW to HNIW is proposed to be oxidation of nitroso and nitration of acetyl on the molecule of TADNSIW, This reaction system involved is simple, and the reaction can complete within a short time and under mild conditions. The product can be easily to separate and the waste disposed readily.     

A Robust Algorithm for Watermarking 2D Vector Maps with Low Shape-Distortions

The technique of watermarking has been introduced into 2D vector maps for many potential applications such as protecting the copyright of important GIS （geographical information system） data and tracing the data source of military maps. In most previous works, although the validity of the map data could be preserved during the embedding procedure, the shape-distortions of the map elements are usually neglected which would tend to degrade the invisibility of the watermarking schemes. A shape-preserving algorithm for watermarking 2D vector maps is presented in this paper. A 1D distance sequence extracted from the original map is adopted as the cover data instead of 2D coordinates. A watermark bit is represented by changing the distributions of the cover data. The embedding procedure induces lower shape-distortions than in former works. Experimental results indicate better invisibility of the proposed scheme, as well as its robustness to certain attacks such as map simplification, interpolation, additive noise and most geometric transforms.     

Open Rule-setting System Applied to Conceptual Design of Engines

Open rule-setting method advanced in this paper concentrates on providing designers of engines with a convenient way to express their design innovations and develop the expected prototypes in the early CAD stage, and constitute effective models for the following analysis process of CAE and CAPP. The problems arisen in the process of conceptual design with the traditional experience-based development method are analyzed. Based on those analyses, open rule-setting method is presented and some associated technical problems are discussed. The functional framework of open rule-setting system was built as software engineering methods. The speciality of the engine product as a kind of complex product and the requirement of the engine product based on its structural particularity to rule-setting system are considered carefully. A demonstration is supplied to illustrate how the open rule-setting method enhances the efficiency and quality of the engine conceptual design.     

Research on Linux Network Device Driver

By analyzing the working principle of Linux network device driver, discussing the Linux network driver structure and its key technologies, the general network driver structure and its design methodologies in Linux system are summarized. Through modifying the network device driver of Linux device driver 3rd version snull, c and improving the COW technology, the Zero-Copy technology in Linux （kernel version 2.6.11 ） is implemented. In the end, the success test tells us that the thorough analysis of network device driver is the foundation of many applications, and it also provides a certain improvement to a lot of real applications, even to military application development.     

Method for Measuring Velocity of Warhead Fragments Based on Photoelectric Detection

For measuring velocity and impacting position of single fragment of warhead, a non-contact measuring method is proposed, in which a six-light-screen array, a position indicator, a multi-channel chronograph and a computer are used.The principle of measurement is described. The key device of the system is a light screen array sensor which consists of six light screens allocated with certain geometrical parameters. When the fragment flies through the light screen array, the time of passing through each of the screens is recorded by the multi-channel chronograph. According to the time data and the geometrical parameters of the array, the velocity vector and the location of the fragment can be calculated immediately. The presented method can be used to locate the fragment and to measure the real velocity on its flying direction. It can also be used to measure the velocity of a fragment swarm after the system is engineered further.     

数码电子雷管中影响点火头性能因素分析

阐述了数码电子雷管中,点火药剂细结晶三硝基间苯二酚铅（LTNR）的制备工艺;从点火药剂的种类、加入黏合剂的质量分数、桥丝直径、点火头的电阻值、防潮漆的蘸涂等方面对点火头性能的影响因素进行了探讨;通过震动试验、并联起爆试验、延期精度检测与考核,试验结果表明：一次性合成的细结晶LTNR是制造数码电子雷管点火头较为理想的点火药剂,按技术要求生产的点火头性能指标能够满足行业标准要求。     

Improvement and Experiment of the Reamer in Vibra Cutter Against Wave Edge of Titanium Sheet Alloy Parts

By analyzing the influencing factors of part quality making of sheet alloy of titanium by vibra cutter, the shape of upper reamer is set as cylinder and wedge-shaped form, and the lower reamer as plain and hemicycle form, and its main structural parameters are defined as well. Then it is validated further that such improved vibra cutter reamer can be used to process curve-edged parts of titanium alloy sheet. The experimental result shows that the titanium alloy sheet parts processed by above equipment have no sharpen angles for convex parts and evident crevasse of concave-edged part. In summary, such improvement can eliminate the free-waved edge and improve the manufacture quality of titanium alloy sheet parts greatly.     

Experimental Study on the Small Flyer Initiating Behavior of Fine-grained Explosives

The initiating behavior of fine-grained explosives by small flyer is studied. The diameter of small flyer in this device is 1 ram. The test results indicate that the granularity of explosives has great effect on its flyer initiating sensitivity.The flyer initiating sensitivity of the fine-grained explosives is higher and the critical initiating energy is lower than that of common explosives. For common explosive, the flyer initiating sensitivity increases as the density is reduced. But for the fine-grained explosive, the test results are exactly opposite.     

Algorithm for Multi-laser-target Tracking Based on Clustering Fusion

Multi-laser-target tracking is an important subject in the field of signal processing of laser warners. A clustering method is applied to the measurement of laser warner, and the space-time fusion for measurements in the same cluster is accomplished. Real-time tracking of multi-laser-target and real-time picking of multi-laser-signal are introduced using data fusion of the measurements. A prototype device of the algorithm is built up. The results of experiments show that the algorithm is very effective.     

Influence of Installing Error on the Surface Shape Precision of the Axial Symmetry Aspheric Workpiece in Lapping

A method to calculate the surface shape error, which is caused by the installing error between the workpiece and the lapping tool in the process of form lapping, is proposed. The mathematical model which the installing translation error influences on the workpiece surface shape error is established. The changing rule of the error is simulated through the calculating example of the paraboloid workpiece. The results indicate that the surface shape error of the workpiece is increasing with the increase of the installing translation error, it is also increasing gradually along the center point of the curve surface to the edge, and the influence is severer to the curve surface with great curvature than that of the small curvature when the translation error is the same.