测试性技术分析与试验验证刍议

测试性质量特性是武器装备试验考核内容之一,攸关武器装备能否快速地检测故障并隔离故障。文中阐述了装备测试技术设计、测试性试验需求和靶场验证方法,着重研究了测试性定性检查、定量检查的基本准则和实施途径。并指出故障特征的分析提取和样本集的有效生成是测试验证的关键,旨在为提升武器装备测试性试验能力提供参考。     

双35牵引高炮系统与测试性

武器装备的测试性越来越被武器装备的发展推到突出的位置。双３５牵引高炮系统出色的测试性设计，代表了电子武器系统测试发展的方向。     

浅谈集成测试中的一点思考

所有的软件项目都不能摆脱系统集成这个阶段。本文介绍了集成测试的总体情况,并详细说明了集成测试的目的、原则和相关注意事项。     

基于深度强化学习的类集成测试序列生成方法

类集成测试序列的生成是面向对象软件测试中的关键步骤，当类的测试序列不同时，相应的测试代价也不相同.在集成测试中生成一个合理的类集成测试序列可以有效降低软件测试的代价.本文将深度强化学习中的Advantage Actor-Critic算法应用于解决类集成测试序列生成问题.首先，利用类间各种依赖关系构建与智能体交互的环境模型；然后，记录智能体从初始状态到终止状态的路径，即每次选择的动作对应每次选择集成到序列的类编号；最后，得出最终的类集成测试序列.实验结果表明，本文方法所得到的类集成测试序列花费的总体测试桩复杂度，在选取的7个项目中有5个表现最佳，在剩余2个项目中表现中等.     

装备测试性建模与分析软件框架设计

现代装备的功能越来越先进,相应的结构和技术也越来越复杂。对于复杂设备的测试和诊断越来越重要。通过装备测试性建模与分析的方法来改善测试性设计,已经成为提高装备测试能力和测试总体优化,进而全面、快速、准确地感知装备技术状态的有效手段。在测试性设计等工作的基础上,设计了装备测试性建模与分析软件。软件结合已有的CARMES 6的FMECA、可靠性预计等模块功能,设计了包括测试性建模、测试性分析等模块,为装备测试性设计提供有力的软件工具支持。     

基于云计算的武器装备体系能力试验测试研究

针对武器装备体系能力试验测试的发展趋势和面临的问题,研究建立了基于云计算的武器装备体系能力试验测试模型。论述了模型中各个层次的组成和作用,阐述了引入云计算技术对武器装备体系能力试验带来的影响,划分了体系能力试验的测试阶段,提出了通用测试流程,并通过具体案例进行了详细阐述,形成了基于云计算的武器装备体系能力试验测试设计。     

机载电子装备测试性验证平台设计与实现

针对现代机载电子装备在执行任务过程中故障检测和隔离难度大、维修保障困难等问题,利用故障注入的方法设计了机载电子装备测试性验证平台。首先,阐述了验证平台的总体架构、交联关系和工作原理;然后,基于PXI技术设计了测试性验证平台的自动测试分系统与故障注入分系统,并兼顾了适配接口模块;同时,验证平台集成VITE软件作为平台的故障注入软件开发环境;最后,对某机载配电系统测试信号及故障模式进行分析,开发了故障注入控制程序,为提高机载装备测试性水平提供了技术参考。     

物联网测试需建立集成的测试设备

物联网测试对推动物联网的发展非常重要,但目前来讲还没有统一的方法或者是统一的准则。希望业内能在物联网的共性基础上进行提取,建立比较集成的测试设备,而无论从测试源,还是到测试结果的收集,集成的测试设备能够满足不管是大型还是广大中小型企业的测试需求。     

软件集成测试的用例设计及测试管理

对测试在软件开发过程中的积极作用进行了分析,描述了集成测试的基本过程及管理方法。结合实际测试项目,给出了集成测试的实际用例及测试结果,并给出软件测试管理系统的功能结构,指出使用管理系统管理测试过程有利于测试数据的统计分析,对项目团队建设和软件产品的质量提高具有积极作用。     

基于全寿命周期的雷达装备测试性综合评估

针对目前雷达装备缺乏全面有效的测试性评估方法的问题,提出了基于全寿命周期的雷达装备测试性综合评估模型。首先,从现代雷达装备测试性评估的全寿命周期过程出发,建立并分析了基于全寿命周期的雷达装备测试性综合评估指标体系;在此基础上,将层次分析法与模糊综合评判方法应用到测试性评估中,给出了雷达装备测试性综合评估方法和步骤;最后,举例进行了验证与分析。结果表明,该评估模型简单、实用、有效,为复杂武器装备的测试性评估提供了一种新的思路。     

STEAC: A Platform for Automatic SOC Test Integration

The lack of electronic design automation tools for system-on-chip (SOC) test integration increases SOC development time and cost, so SOC test integration tools are important in the success of promoting SOC. We have stressed practical SOC test integration issues, including real problems found in test scheduling, test input/output (I/O) reduction, timing of functional test, scan I/O sharing, etc. In this paper, we further consider the requirement of integrating at-speed testing of embedded cores - to detect timing-related defects, our test architecture is equipped with at-speed test capability. Test scheduling is done based on our test architecture and test access mechanism, considering I/O resource constraints. Detailed scheduling further reduces the overall test time of the system chip. All these techniques are integrated into an automatic flow to facilitate SOC test integration. The test integration platform has been applied to both academic and industrial SOC cases. The chips have been designed and fabricated. The measurement results justify the approach - simple and efficient, i.e., short test integration cost, short test time, and small hardware and pin overhead.     

某鱼雷空中姿态控制装置自动测试系统的设计

通过对某鱼雷空中姿态控制装置进行分析与研究,并对被测对象测试需求特征进行综合分析,优化测试项目,优化测试资源配置,设计出适用的空中姿态控制装置测试设备。测试仪硬件采用基于ISA总线结构的工控机,软件采用LabWindows/CVI开发平台。     

Testing Multilayer Flexible Wireless Multisensor Platforms

Smart wireless sensor systems that incorporate multiple sensors often cannot be implemented on a single chip. Advanced integration and assembly allows for a more complex conjugation and configuration of multiple system modules implemented under different technologies together in a small tiny package. In tiny sensor systems such as these, three common challenges seen across most platforms are: the difficult test access due to non-standard assembly and packaging, the testing of multiple heterogeneous sensor species, and the strict dimensional requirements limiting availability of any built-in hardware for testing. We discuss the method of testing by modules for testing a multilayer mechanically flexible wireless multisensor platform. A hierarchical test flow is presented for verifying the functionalities and assessing the performance of the various modules of the system. We also present an example of a design for testing feature, a built-in test point access bus that improves reliability for test point access, reduces the cost of testing and overall system bill-of-material, as well, increases test channel bandwidth allowing for full access to all critical subsystem nodes. Lastly, we provide examples of subsystem performance assessment and verification testing of selected sensor species on the multisensor platform as well as the system power consumption versus transmission range, to illustrate the usefulness of the test concepts, flow, and features introduced.     

浅析集成测试和系统测试的关系

软件测试过程划分为单元测试、集成测试、确认测试、系统测试、验收测试五个阶段,其中集成测试和系统测试是对整个系统或者子系统的功能等特征进行的测试,所采用的测试方法相对复杂,文本分析了它们之间的联系和区别.     

Efficient object-oriented integration and regression testing

This paper presents a model, a strategy and a methodology for planning integration and regression testing from an object-oriented model. It shows how to produce a model of structural system test dependencies which evolves with the refinement process of the object-oriented design. The model (test dependency graph) serves as a basis for ordering classes and methods to be tested for regression and integration purposes (minimization of test stubs). The mapping from unified modeling language to the defined model is detailed as well as the test methodology. While the complexity of optimal stub minimization is exponential with the size of the model, an algorithm is given that: computes a strategy for integration testing with a quadratic complexity in the worst case; and provides an efficient testing order for minimizing the number of stubs. Various integration strategies are compared with the optimized algorithm (a real-world case study illustrates this comparison). The results of the experiment seem to give nearly optimal stubs with a low cost despite the exponential complexity of getting optimal stubs. As being a part of a design-for-testability approach, the presented methodology also leads to the early repartition of testing resources during system integration for reducing integration duration     

Managing Test-Procedures to Achieve Reliable Software

Quantitative decision-making procedures are proposed to aid software project managers to manage effectively the testing stage during software project development. The module and integration testing phases are thoroughly investigated. Decision procedures which maximize the reliability and/or minimize some cost-benefit objective subject to a time and/or budget constraint are suggested. These procedures optimally allocate test time to the modules for module testing and select the optimal data mixture for integration testing. Testing of computer software is a major component of the software development effort. An efficient allocation of computer time among various modules during testing can appreciably improve reliability and shorten the testing stage. Using decision models presented in this paper, a project manager can effectively allocate test time during module testing and select the best data mixture for integration testing. The models are based upon software failure data that are collected during testing. These decision models can be valuable not only for the project manager but for the group responsible for generating the appropriate test data.     

Normally-Integrated Magnetic Field Integral Equations for Electromagnetic Scattering

Modified magnetic field integral equations (MFIEs) are proposed incorporating a testing integration in the direction normal to the boundary of the target surface. The result involves a simpler kernel than the conventional MFIE, facilitating accurate computations. By employing a complex exponential testing function, the equations can be made immune to the interior resonance problem. The influence of the limits of integration, and the overall accuracy, is investigated using high order basis functions.     

On-wafer photoconductive sampling of MMICs

A practical technique for the on-wafer characterization of the high-frequency response of a MMIC was developed, using photoconductive (PC) sampling. It provides S-parameter measurement with broadband, high sensitivity, and accurate calibration. In addition, due to its inherent broadband signal generation on the wafer, high-frequency information of the circuits can be extracted merely by using DC probes. Starting from a hybrid testing configuration, the compatibility of PC switch fabrication with the MMIC production process is demonstrated. In this phase, 40-dB dynamic range in the S-parameter measurement was achieved. The success motivated the monolithic integration of the PC switches onto the MMIC. Efforts were made to reduce the size of the optical test structure. Good agreement between a conventional network analyzer measurement and two optical testing results has been achieved, showing that built-in optical test structures can be designed to have comparable overall size with existing CPW test structures. The S-parameter characterization of a nonlinear transmission line is demonstrated     

Testing and Diagnosis of Digital Microfluidic Biochips using Multiple Droplets

Digital microfluidic biochip is a promising alternative to the traditional cumbersome laboratory equipment. Such automated biochips are used in many critical applications. Hence dependability is an essential attribute before the chip is in use. Due to mixed integration technologies, these chips have some unique failures. Hence robust offline and online tests are proposed to check the health of the biochips. When a chip undergoes a test in offline mode, then the entire biochip should be available for testing, whereas for the online mode test droplet might be stalled due to unavailability of the next cell in the routing path. However, in both the scenarios one or more droplets route across the chip and the arrival time is also recorded at the destination. So here we have proposed two test schemes to know the correctness of any biochip. Diagnosability is an important feature to find the exact position of the faulty electrode. Our proposed scheme reduces the overall testing and diagnosis time significantly. It also provides an alternative routing path in biochip for fault tolerance.

     

基于Jenkins的持续集成系统研究

本文基于大规模软件产品研制背景,分析了软件开发面临的诸多问题,研究了在项目开发过程中引入持续集成的必要性,并对持续集成系统进行整体设计。本文将整个持续集成过程划分为版本控制、自动化构建以及自动化测试三个核心环节,对这三大核心模块进行详细设计,实现了一套基于Jenkins工具的持续集成系统。其中版本控制模块采用了支持分布式工作流的SVN代码存储库,自动化构建模块主要完成Jenkins持续集成服务器的搭建及配置,自动化测试模块主要实现了一套基于库博国产化工具的自动化测试框架。本文设计并实现的持续集成系统利用自动化的技术手段,在实际案例的应用中实现了从代码提交、到代码编译、单元和集成测试以及测试结果反馈的一系列过程。