查询词典 hardware structure

Chapter one and chapter two analyse the basis theory and give a whole design plan and expatiate the basic exoterica of system inculding primary technology for application. It involves the basic control theory of satellite antenna and analyse for the whole function. Chapter three gives the hardware design which includes hardware etlectrocircuit structure, principle chart, selecting all kinds of parts of the apparatus , the sensor elements and the design of serial communication electrocircuit etc. Chapter four and chapter five introduce software design for the SCM and the personal computer, giving mainly design theory and material program which includ the design of searching for the satellite and searching for the high-point and the program development by Delphi on PC, explaining the basic principium of asynchronous serial communication for epigyny computer and hypogyny computer.

第一、二两章阐述了系统的理论基础及应用的主要技术，包括卫星天线控制基础理论和整体功能分析等等；第三章是系统硬件设计，包括硬件电路组成及原理图、各类元器件的选取及传感器原理，串行通信电路设计等：第四、五两章是单片机、PC机软件设计，给出了主要部分的设计原理及具体程序，包括监控软件设计、寻优设计、寻星设计，PC端Delphi程序设计开发等，并阐述了PC机和单片机异步串行通信的基本原理，是本课题的重点所在。

In the light of cost index and pollution degree, the characteristics of kinds of pulp are analyzed in detail, and the GP pulp which is low cost, high-yield, no-pollution is chosen as the material of tableware. Based on material element analyzed, shaping technology is designed, the to and for single plane shaping equipment which is high shaping quality, high production efficiency and is easy to automatize is chosen. All kinds of measure are taken to solve the problems which are inequality in the shaping process of GP pulp, and dosage which matches with GP pulp is chosen. Some ways of fixing shape and heat up are analyzed, the technology of saving energy of heat pressing to fix shape being composed of oil heat and only one fixed shape in the mold is applied, with which it is high production efficiency, low cost to fix shape effectively, which saves energy 30 percent. In order to make the production line meet with material of GP pulp, measure are taken to solve the problem of pulp adhered to netlike molding which can lead to carry material difficult, the structure of fully automatic equipment is renovated, the loaded beam is optimizationally designed to make equipment structure compactand improve location precision and products quality. According to technologic flow and actual characteristic, Omron PLC is chosen as the core of the control system, proximity switch as detect unit take the place of touch switch, software is designed reasonably according to time order figure, hardware is simplified, the reliability of system is advanced, the stability of system is assured to make production order. Intelligence neuron PID system is studied theoretically which is made up of both neuron with self-organizing and self-learning function and ordinary PID with the characteristic of the simple structure and high stability, which can automatically tune the parameter with the change of system parameter, remain perfect performance.

按成本指标和污染程度分析各浆料的特点，选择低成本、高得率、无污染的磨石机械浆为原料，在原料组分分析的基础上，设计成型工艺，选择成型质量好、生产率高、易实现自动化的往复式单板成型机，采取各种措施解决GP浆成型不均匀的问题及选择与机械浆相匹配的助剂；分析几种定型方式和加热方式，采用定型效果好、生产率高、成本低的油加热与模内一次性定型相结合的热压定型节能技术，节能30％；为了使生产线适应磨石机械浆原料，采取相应措施解决由于粘网造成物料转移困难，对全自动设备结构进行改进设计，着重对物料传送系统的关键部件——承载梁的进行优化设计，使设备更加紧凑合理，提高设备的定位精度和产品质量；根据生产线工艺流程和现场特点，选用OMRON CPM1A型PLC为主核心，接近开关作为检测元件，替代有触点开关，选用可编程终端代替常规面板按扭，并按照时序图科学合理地设计软件，有效地简化系统硬件构成，提高系统的可靠性，保证系统的稳定性，从而使生产更加通畅有序；从理论上探索将神经元应具有的自组织、自学习要求与PID控制结构简单、稳定性好的全自动纸浆模塑餐具生产线的研究特点结合起来，构成神经元自适应PID控制器，当参数的变化时，系统能自行参数整定，保持优良的工作性能指标，满足实际需求。

A hardware scheme of a multi-channel GPS signal simulator based on DSP and FPGA is proposed in this paper.The basic framework of hardware system is introduced compendiously,and the structure of software and the program flows based on the hardware are presented in detail.The feasibility of this scheme is verified finally.

立足于GPS卫星信号仿真技术，提出了基于DSP+FPGA的多通道GPS卫星信号仿真器硬件设计方案，概略介绍了硬件系统的基本架构，详细给出了基于此上的软件结构和程序流程，最后通过实验验证了该方案的可行性。

The thesis contains five chapters. The first chapter summarizes the development and research of switched reluctance drive, discusses the main research direction, and explains the main work in this paper. In chapter 2, hardware system which includes the design of power converter and various control circuit is discussed. TMS320LF2407 DSP is used to design the hardware circuits of SRM control system, and design details including the current detection, position sensing, fault protection, speed detecting, keyboard and display etc. are provided. Because of the full use of the abundant peripheral resources of DSP, it comes to the aim simplifying the circuit structure and heightening the reliability. In chapter 3, the application of neural network on SRM control system is introduced, a new the application of neural network and the method of sampling is proposed and a simulation system based on Matlab/Simulink is established. Chapter 4 discusses the routine designing issue. Because the modularized programming method is adopted, and multi-interrupt processing technique is used, operation efficiency of the control software is highly raised. At last, the foregoing SRM control system is tested. Speed adjustment is realized, and other targets on the research and design of SRM control system are reached, which establishes a good foundation for further research.

本文共分五章，第一章概述了开关磁阻电机调速系统(Switched Reluctance Drive，简称SRD)及其发展和研究现状，论述了其主要研究方向，并说明了本文的主要工作；接下来的一章主要讨论了SRM的硬件系统，主要包括功率变换器的设计和各种控制电路的设计，本文以TMS320LF2407为核心设计了开关磁阻电机控制系统硬件电路，给出了包括电流检测、位置检测、故障保护、测速电路及键盘和显示电路等部分电路的详细设计，充分利用了DSP的丰富外设资源，达到了简化电路结构、提高运行可靠性的目的；第三章介绍了人工神经网络在开关磁阻电机控制系统中的应用，提出了一种新的应用方式(利用GPFN神经网络调节PI参数)以及如何采取样本，搭建了基于Matlab/Simulink的仿真系统；在第四章中，讨论了开关磁阻电机控制软件的设计，采用模块化编程方法，采用基于多中断的控制程序，提高了控制软件的效率；最后，对所设计的开关磁阻电机控制系统进行了实验，实现了电机调速，达到了开关磁阻电机控制系统研究和设计的预期目标，为更近一步研究打下了基础。

In this paper, a brief analysis of the mechanism of overhead insulating conductor broken by lightning was introduced, and some detail information about the structure and principle of some anti-lightning broken device, such as over-voltage protector, arc-protection hardware and FLC-B lightning-protection hardware. And some electrical tests and analysis were done to these devices, after multi-comparison of those devices' performance, some specific measures are proposed against lightning broken.

本文简要分析了架空绝缘导线雷击断线的机理，详细介绍了过电压保护器、防弧金具和FLC-B型防雷金具等常用防止架空绝缘导线雷击断线装置的结构和工作原理，并对这些装置进行各种电气试验与分析，综合比较各种装置的性能之后，提出了10kV架空绝缘导线防雷击断线的具体措施。

It includes four parts: 1 Part I, it introduces the basic knowledge of computer viruses such as computer virus definition, history and important viruses events, features, behavior phenomena, difference with computer software and hardware troubles, damage behavior and capability, classification, naming, future trend, etc; 2 Part II, it introduces the corresponding knowledge of computer systems related to computer viruses such as the composing of software and hardware of the computer system, storage media and its working mechanism, interrupt technologies,.com/.exe/.pe file formats and their working mechanism, etc; 3 Part III, it introduces computer virus mechanism and theory such as computer virus structure, work flow, working mechanism of key modules, typical technologies used to design computer viruses including the corresponding traditional technologies (interrupt filching, memory resident, etc.), the corresponding new routine technologies (self-encrypting, Mutation Engine, etc.), and the corresponding new technologies used by some prevalence computer viruses such as macro viruses, e-mail viruses, worm, hacker, Trojan, mobile phone viruses, the working mechanism analysis of some kinds of typical and prevalence computer viruses such as file-type viruses, macro viruses, e-mail viruses, worm viruses, hacker, Trojan, mobile phone viruses, the analysis of some typical and prevalence computer viruses examples including BALL viruses, WORD macro viruses, WantJob viruses, Code Red viruses, BO Trojan, etc; 4 Part IV, it introduces the defense and killing technologies of computer viruses such as the aim and criterion of computer viruses defense and killing, prevention methods and corresponding technologies, detection technologies (comparison method, character code scanning method, behavior inspecting method, analysis method, etc.), manual and automatic killing technologies, immunity technologies such as IBM digital immunity system, new anti-viruses technology trends (real-time anti-viruses technologies, 32 kernel technologies, active kernel technologies, etc.), some typical virus defense and killing softwares (Symantec AntiVirus product, PC-Cillin AntiVirus product, etc.), the defense and killing method analysis of some kinds of typical and prevalence computer viruses (file-type viruses, macro viruses, worm viruses, hacker, etc.), for example, firewall and intrusion detection technologies for anti-hacker, the defense and killing of some typical and prevalence computer viruses examples including WORD macro viruses, Code Red viruses, BO Trojan, etc.

课程内容具体包括四大部分：1）第一部分，介绍计算机病毒基本知识，包括：计算机病毒定义、病毒发展史及重大事件、病毒特点、病毒表现现象及与软硬件故障的区别、病毒破坏行为及危害性、病毒的传播途径及媒介、病毒分类、病毒的命名及计算机病毒技术发展趋势等内容；2）第二部分，介绍与计算机病毒有关的计算机系统相关知识，包括：计算机系统软硬件组成、存储介质结构及工作原理、计算机系统引导机理及流程、中断技术、。com/。exe/。pe等文件格式及工作机理等内容；3）第三部分，讲解计算机病毒机理，包括：计算机病毒的组成结构、病毒工作流程、病毒引导/触发/感染/破坏等模块的工作机理、计算机病毒所采取的编制技术（包括中断窃取/内存驻留等传统编制技术、自加密/隐形/变形机等新的常规编制技术、宏病毒/电子邮件病毒/网络蠕虫/特洛伊木马/黑客/手机病毒等一些新的流行病毒所采取的编制技术等）、一些类型的典型或流行计算机病毒的工作机理分析（包括：引导型病毒、文件型病毒、宏病毒、电子邮件病毒、蠕虫病毒、黑客、特洛伊木马、手机病毒等）、一些典型或流行的计算机病毒实例剖析（包括：小球病毒、WORD宏病毒、求职信病毒、红色代码病毒、冰河木马等）等内容；4）第四部分，讲解计算机病毒防治技术，包括：计算机病毒防治目的、病毒防治策略及规范、病毒在管理和技术上的预防措施、病毒检查技术（包括：比较法/病毒特征码扫描法/行为监测法/虚拟执行法/分析法等）、手工和自动病毒清杀技术、病毒免疫技术（包括：针对某种一次性感染病毒的基于病毒标签的免疫方法/基于自我完整性检查的计算机病毒免疫方法/IBM的数字免疫系统等）、反病毒技术的新发展（包括：实时反病毒技术/32位内核技术/主动内核技术/以毒攻毒技术等）、诺顿/趋势/金山等公司的病毒防治软件产品、一些类型的典型或流行的计算机病毒（包括：引导型病毒、文件型病毒、宏病毒、蠕虫病毒、电子邮件病毒、手机病毒、黑客、特洛伊木马）的防治措施（其中，也包括介绍面向防范黑客攻击的防火墙、入侵检测技术）、一些典型或流行的计算机病毒防治实例剖析（包括：WORD宏病毒、红色代码病毒、冰河木马v1.1/v2.2等）、多层次病毒防护体系等内容。

This paper is a research on receiving technology of Set Top Box of cable digital television conformed to MPEG-2 and DVB-C. In this paper, firstly, the structure of hardware platform and the function of hardware parts are discoursed; Secondly, the software system is studied from the point of view of software levels and software modules, and the function of every software level and every software module is also discussed detailedly.

本文对符合MPEG-2和DVB-C标准的数字电视机顶盒进行了研究，对硬件系统的组成以及各个部分实现的功能进行了论述，从软件层次和软件模块的角度对数字电视机顶盒的软件系统进行了分析，并对每个软件层的功能以及每个模块将要实现的功能进行了详细的论述。

Firstly, this paper describes the hardware system of the X-ray thickness gauge, explains the composition and principle of every hardware part, including five parts: emission device, reception device, mechanically-driven structure, control system and operation terminal.

本文详细介绍应用在双向拉伸薄膜生产线上的X射线测厚仪的研制和设计过程。主要从三个方面对研制和设计作了详细介绍。首先从X射线测厚仪的硬件结构进行描述，阐明各个硬件的组成和原理，并着重介绍了在设计中各个硬件的类型和功能实现。

I am in improving product quality assurance system, rely on advanced casting equipment and technology, investment casting, casting process silica sol, professional deal with all kinds of complicated structure castings, good at all kinds of stainless steel precision castings, the main products cover : Pipe valve, fast connections, marine hardware accessories, hardware and tools, construction hardware, machinery hardware, locks series, doors and windows furniture accessories, kitchen and toilet hardware accessories (pot handles, burning stalk, ears covered ), Flange, such as Castings, products widely used in machinery, construction, shipbuilding, automobiles, household, medical and other fields.

目前我公司在完善的产品质量保证体系下，依靠先进的精铸设备和技术，采用熔模铸造，硅溶胶精铸工艺，专业处理各种复杂结构铸件，擅长各种不锈钢精密铸件，主要产品涵盖：管件阀门、快速接头、船用五金配件、五金工具、建筑五金、机械五金、锁具系列、门窗家具配件、厨卫五金配件、法兰等精铸件，产品广泛应用于机械、建筑、船舶、汽车、家居、医疗等领域。

These problems are:the choice ofthe braking model curve for ATP system,analysis of information for control,the cab signalwith main function,reliability and extendability of hardware structure for ATP system,etc.

这个系统已在我国商阜试验区段运行，获得很好结果，是我国目前最新一代有代表性、先进性水平的ATP系统，它将在我国铁路干线上扩大应用。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。