To satisfy domestic demand of testing tools for embedded assembly - language system , this thesis , based on a deep research of the current popular coverage and its realization methods , ascertains its technique route and designs a workable prototype testing platform originated from the 51 series for the embedded systems . the prototype system consists of modules of function testing , code testing , communication interface transfer module , data analysis and file report 为了满足国内用户对嵌入式汇编应用程序进行测试的需求,本文在对当今主流的专业覆盖测试工具及其实现方法进行深入研究的基础上,结合课题确定了论文的需求和技术路线,设计并实现了基于软件仿真的针对intel51系列单片机的汇编语言嵌入式软件测试系统原型,原型系统由源程序词语法分析、静态结构分析、功能测试、代码测试、数据分析与文档报告等模块组成。
The prototype test results indicate : voltage mode and current mode ac - ac mode ac / ac converters with high frequency link have the advantages such as high frequency electrical isolation . simple topology , two - stage power conversions , high power density , bidirectional power flow , good line current waveform , no audio noise , high converting efficiency , and high input power factor etc . this kind of converter lay the key technical foundation on new type regulated sinusoidal ac power supply , electronic transformer , ac regulator , and wave converter etc 试验表明,这类变换器具有高频电气隔离、电路拓扑简洁、两级功率变换( lfac hfac lfac ) 、功率密度高、双向功率流、无音频噪音、变换效率高、网侧功率因数高等优点。为新一代正弦交流稳压器、电子变压器、交流调压器、同频波形变换器的实现奠定了关键技术基础。
A network based approach , called extended petri - nets that represents the design of the supply chain as an abstracted network with " and " and " or " nodes , is presented . based on their substantial disadvantages of linear programming , integer programming , nonlinear programming and genetic algorithm in dealing with a typical supply chain , a constraint based genetic algorithm as part of the extended petri - nets approach is introduced to search for improvements in the design that satisfies the constraints imposed on the system . a prototype testing system is constructed , which is followed by an example together with a description of the small automobile supply chain system implementation 两北丁业人学博十学位论义通过对链式供需链的结构分析,把链式供需链的设计优化转化为多阶段决策问题,在此基础上建立了设计优化模型,并提出前向与后向两种动态规划求解算法;鉴于线性规划、整数规划、非线牲规划以及遗传算法在解决网状供需链设计优化问题时皆存在着不足,本文对petri网进行了改进,提出了扩展petri网的概念,用于把网状供需链抽象为一个具有“与”和“或”变迁节点的网络,并在前人工作的基础上,把基于约束的遗传算法cbga与扩展petri网结合起来,用