硬件

Can be made for changes during the project's lifetime and the specifier of requirements should avoid, as far as possible, detailed hardware dependencies.

在项目的生命周期不能预见硬件将有什么变化会发生，所以制定需求的人应该尽可能地避免将与硬件有关的需求说得太详细。

The contents including the task principle of main line PIC 、the analysis of hardware、 the principle of light stockade and so on.

内容包括了PCI总线的工作原理，硬件分析，光栅的原理，光栅的硬件组成等问题。

Intelligent service life, Ding Tek is committed to long-distance intelligent control of core technology development and research, as a Remote Intelligent Management System solution providers, systems integrators, primarily engaged in the automobile industry, water conservancy, electricity, city public safety, agricultural irrigation and other fields Remote intelligent control solutions as well as ancillary hardware and professional technical services (the core technology of the hardware module and the corresponding supporting software).

智能服务生活，鼎康科技致力于远程智能控制核心技术的开发与研究，作为远程智能管理体系的解决方案提供商，系统集成商，主要从事汽车工业、水利电力、城市公共安全、农业灌溉等领域的远程智能控制的解决方案以及配套的硬件和专业性技术服务（核心技术的硬件模块及相应配套软件）。

this paper researches achieving method of teledata collection system,including data collection,data transmission and data memory of system.then,it expounds design project planned to adopt in hardware and sofeware on the basis of giving flow chart of system signal disposal.hardware design portion includes current monitor,long-distance monitoring terminal and handheld collection facility; software design portion includes data receiving system,data memory system and monitoring system.

该文研究远程数据采集系统的实现方法，包括系统的数据采集部分、数据传输部分以及数据如何存储。之后，在给出系统信号处理流程图的基础上阐述硬件和软件拟采用的设计方案。硬件设计部分包括电流监测器、远程监管终端和手持式采集设备；软件设计部分包括数据接收系统、数据存储系统和监管系统。

This paper is composed of the design of the public vehicle onboard information terminal unit and bus stop reporter"s hardware circuit, the system"s software and the wireless communication.

本文包括了随车控制器硬件电路的设计、软件程序的设计，语音报站系统硬件电路的设计以及软件的编制、无线通讯的设计以及控制调度中心软件的设计等。

The research work of this paper is divided into five parts: The first ,according to the work characteristics of ship's auxiliary boiler, this paper is to design applied project in the automatic control system of ship's auxiliary boiler; The second, according to the work request of the cargo winch of alternating three-speed change-pole speed-adjusting, this paper is to determine adopting the method of the PLC control; The third, this paper is to design PLC application in three -phase induction motor control, to give the ladder chart, program and input and output circuit diagram; The fourth, this paper is to research the method of the ship's combined starting screen automatic control with the PLC; The fifth, this paper is to inquire the possibility of apply the PLC in ship's engine room surveillance system; According to the comprehensive analysis of above actual example of ship's auxiliary machinery automatic system with the technique of PLC; not only can use the technique of PLC to replace traditional relay-contactor control technique in ship's auxiliary machinery automatic system, but also can get the conclusion of the former is more dependable and more clever than the latter, the maintenance is more convenient, thus develop a new path for ship automation.

本文研究的工作主要包括五个部分：第一，根据船舶辅锅炉的工作特点，设计PLC在船舶辅锅炉自动控制系统中的应用方案，主要有PLC选型及输入输出点的设计，画出系统控制梯形图并分析工作原理；第二，根据交流三速变极调速起货机的工作要求，确定采用PLC控制的方法，进行控制系统的硬件设计和软件设计，并分析工作原理：第三，设计了PLC在三相异步电动机控制中的应用，给出了控制梯形图、程序及输入、输出接线图；第四，研究了用PLC实现船舶组合起动屏自动控制的方法，进行了系统的电源设计和软件设计，给出系统工作流程图；第五，探讨了船舶机舱监视系统应用PLC的可行性，将继电器报警线路改为用PLC控制报警，给出系统硬件图和软件梯形图，并分析了PLC机的选型、抗干扰和应用PLC的经济效益和社会效益等问题。综合以上船舶辅助机械自动控制系统采用PLC技术的实例分析，可以得出船舶辅助机械自动控制系统不但可以使用PLC技术取代传统的继电器接触器控制技术，而且前者比后者更可靠、更小巧，维护保养更方便的结论，从而为船舶自动化开辟了一条新的路径。无忧毕业设计网 www.5ubs.cn

Faced with the increasingly complex network topological connection and gradually increased network flow, network manager needs to know online such network activity information as the network flow of each network section, network bandwidth availability and the early warnings of hardware breakdown and software failure.

面对益复杂的网络结构与逐渐增加的网络流量，网络管理者需要实时了解各个网段的流量情况、网络带宽的使用率、硬件故障与软件失误的预警等网络运行信息，要做到这点，最有效的办法就是在原有的网络硬件基础上构建一个网络管理系统以实现对全网的监控。

The holistic design of the system and resolved the designs of software and hardware based on VXI bus are put forward according to the demand of test system. The hardware and software is designed, including the formation and design of hardware system, visual instrument software architecture, program design for instrument driver, high speed real-time data collection. In the dynamic test program, the idea of"software is instrument"was applied to meet the diverse test demands. Last, it is proposed that the VXI test system be developed to more totalization and networked. The basic theory of system identification was introduced briefly at first. The principle of spectrum analysis system identification based on Wiener-Hopf equation was expatiated. and the questions in applying Peusdo Random signal as spectrum analysis methods stimulate signal was studied, The generation principle of the peusdo random signal is researched, the characteristic of peusdo random are analyzed from time domain and frequency domain, the inverse repeat peusdo random signal is brought forward to make up the shortage of ordinary peusdo random signal. And a new chaos genetic algorithmis presented to solve the unprecise problem of the traditional method. In the servo valve dynamic characteristic test system, the spectrum analysis methods was applied successfully, the servo valve dynamic characteristic could be acquired rapidly and exactly, the test results were analyzed and the ameliorate methods were brought forward at last.

结合航天某集团液压测试中心测试系统的需求，提出了基于VXI总线的液压测试系统的整体设计方案，完成了测试系统的硬件设计与软件设计，包括硬件系统构成与设计、虚拟仪器软件结构、仪器驱动程序设计、高速同步实时数据采集等内容；以伺服阀动态特性测试为例设计了测试模块，该模块体现了VXI总线仪器软件开发所倡导的"虚拟仪器"的思想，以软件的灵活应用满足了不同的测试需求；结合自动测试系统的发展，研究了VXI测试系统与网络技术结合，实现各种软硬件资源共享，进一步提高设备及数据的利用率和系统的扩展性，使自动测试向综合化、网络化方向发展；研究了伪随机信号作为谱分析法辨识的激励信号时存在的问题，讨论了伪随机信号的产生机理，从频域和时域分析了伪随机信号的性质及其应用，提出了用逆重复伪随机信号弥补了普通伪随机信号的不足，并以混沌遗传算法对逆重复伪随机信号产生过程中的参数进行优化，可以更合理而不是凭经验产生需要的逆重复伪随机信号。

The hardware system comprises a football locating emitter, a site corner orientation emitter, a vidicon, a radar velometer, a player locating emitter and a site vibration receptor. The software system comprises a plenty of computer program software developed for aiming at the hardware.

其中硬件系统由足球定位发射器、场地边角定向发射器、摄像机、雷达测速器、球员定位发射器及场上裁判振动接收器等组成；软件系统则由针对以上所述硬件进行开发的各种电脑程序软件等构件组成。

This article introduced in detail does not have the electric cable to coordinate the controller the overall design and its hardware electric circuit, the software procedure: Voltage comparator, 2 frequency multipliers, synchronized clock electric circuit, 6 7SEDLED nixietube display circuit.

本文详细介绍了无电缆协调控制器的整体设计和其硬件电路软件程序其硬件电路组要有：电压比较器2倍频器同步时钟电路6位7SEDLED数码管显示电路系统软件包括：主程序子程序实现控制程序等实验表明：该无电缆协调控制器系统可以准确的对信号灯进行监控和教正，可以在一定程度上解决混合交通流的问题

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。