设计需求

Based on the axiomatic design, the process model of product demand analysis is established.

建立了基于公理化设计的产品需求分析过程模型，提出了在并行设计过程中，产品的用户不仅是产品的使用者，还包括制造、销售、安装和回收人员，在用户需求信息的获取、评价和描述几方面进行了深入的研究。

According to the users' requirement and visualization target of ocean information extraction, a visualization modeling system for ocean remote sensing information extraction is designed which includes its software structure, users' requirement use-case structure, class structure and flow-chart representation using the unified modeling language and object-oriented analysis method. The related flow definer and flow attemperment are designed and implemented.

根据海洋遥感信息提取可视化建模应用需求，以用户可视化模型建立及流程设计实现为目标，采用统一建模语言UML面向对象分析方法，设计海洋遥感信息提取可视化建模系统软件结构、用户需求用例结构、类结构及流程图表示法，同时完成流程定义器、流程调度的设计和实现。

According to the demand of high magnetic field power supply, reference is increased with a set ramp rate and stops at a set stable value, so reference system is composed of digital setting and digit to analog converting circuit. But the stability of reference is mostly guaranteed by the performance of D/A circuit, so D/A circuit is particularly studied in reference system. The scheme of D/A circuit, the selection of DAC and its voltage reference, hardware anti-jamming design and PCB design are discussed in detail, and software of remote control and PLC are discussed in brief. Zero-flux DC current transformer well satisfies the demands of the high stability of Load current detection unit, so the principle of zero-flux DC current transformer is analyzed; in the mean time a project which detects the long term stability is designed. During 8 hours, analog signal which is detected with high precision digit multimeter is recorded in computer at 1HZ frequency by GPIB communication. The drift error source and related parameters are explained in the compare-amplify part. Detailed subtraction circuit is designed; also amplifier chip and periphery components are selected and verified according to the theory of error analysis.

根据强磁场电源的需求，参考源应按照软件设定的斜率逐渐上升到设定稳态值，则参考源系统应由数字给定和数模转换电路两大部分组成，而参考源的稳定度主要依靠完成数模转换功能的模拟电路的性能来保证，因此本文对参考源系统的研究以数模转换电路为重点，分别从电路方案的确定、数模转换芯片及其基准电压源的选取和验证、电路板硬件抗干扰和PCB设计几方面进行了论述，然后对数字给定部分的远控组态和PLC程序设计作了简要介绍；采用零磁通原理的直流电流转换器很好地满足了对负载电流检测单元高稳定度的需求，本文详细分析了零磁通检测的原理，并在选定此种类型电流转换器的基础上设计了一套检测长期稳定度的方案，8小时内以1秒为采样周期，通过计算机Labview程序和高精度数字电压表的GPIB通讯，将被高精度数字电压表数字化后的模拟信号采样值连续记录至计算机中；比较放大环节简要阐述了漂移产生的原因和相关参数指标，确定了具体的减法电路形式，并根据误差分析理论对运算放大器和外围元器件进行了选取和验证。

My colleague told me that before design I must know what is the client need. I modified again. But the client still not satisfied.I think it was cause of my lower work experience.I understood design is a serious matter after I observed my colleague. Design should consideration a lot. Design should not be precipitance.

同事告诉我需要先了解客户的需求才能自己再做设计，后来我修改了很多次都没能通过，原因是我的工作经验不足，无法做出迎合客户需求的设计，后来我观察同事们做设计的过程我才明白做设计不能太随便，需要很严谨，需要考虑很多，不能太鲁莽。

In the information era, there are many multimedia equipments in market, people can not use most of them freely. As a cost-effective system, SVS comes to undertake this role by providing professional large-screen display system and intelligent control system in overall. SVS insist to designing and producing large screen system, covering the products that based on projection technology, such as projector, projection TV, plasma, LCD TV, projection screen, video booth, Whiteboard, writing screen, big-screen mosaic system, matrix interface, video conferencing, central control system and other related accessories.Relying on a high level ideal of "creation and practical", with high-quality technology, market development and service team, SVS is in a fast lane of development. Since was built in 2003, has SVS achieved widespread attention and recognition in field, and established a good relationship with IT media, supporting manufacturers and industry research institutions, always thinking customers' demand and provide specific programs by Symposium, three-dimensional-type promotion, performance monitoring and analysis.

信息化时代，多媒体设备层出不穷，让人措手不及，无法真正去灵活运用，搭配出最佳适合用户需求的高性价比系统，SVS勇于承担这个角色，专业成就大屏幕显示系统与智能化控制系统整体方案设计及制造，SVS自始至终以大屏幕为主线，涵盖了以投影技术为基础或依托所开发、搭配或衍生的产品，包括投影机、背投电视、等离子、液晶电视、投影屏幕、视频展台、电子白板、书写屏、大屏幕拼接系统、矩阵接口、视频会议、中央控制系统及其他相关配件或零组件，公司依托一支具备"作风严禁、勇于创新、讲求实效"的高层次、高素质的技术开发、市场开拓及服务人才队伍，SVS正在惊人地快速发展，自创建以来，已经在业内取得了广泛的关注与认同，与IT媒体、配套生产商以及行业研究机构建立了良好的合作关系，始终以客户的需求为中心，帮助客户提供专项设计方案，专题讨论，立体式推广，效果监测和用户分析等各种服务，最大限度地方便客户，为客户提供解决方案，不断满足客户多样化、个性化、复合化的需要，帮助客户以最少的成本获取最大的收益。

Because of lack of abstraction at the stage of requirement analysis, the traditional Management Information systems of Engineering Designing Project are not suitable to dynamic recomposition of business management process. This paper will combine Workflow Technologies with Management Workflow System of Engineering Designing Project. By decomposing work into good-definitioned tasks and roles and executing and monitoring them according to rules and processes, we can boost efficiency, reduce cost, enhance level of business management of engineering design department.

传统的工程设计项目管理信息系统在需求分析阶段缺乏高度的抽象性，使得最终的需求模型无法适应管理业务流程的动态重组，本文将结合正在研发的工程设计项目管理信息系统集成工作流技术，将业务处理工作分解成定义良好的任务和角色，并按照一定的规则和过程予以执行和监控，达到提高办事效率，降低生产成本，改善工程设计单位生产经营管理水平和竞争力的目标。

During the theoretical probe of logistics demand, demand forecast principle, effect factor, forecast method, an estimate system of determining the constants is set up to make change cherrys short-range forecast.

本文试图根据汽车销售市场特点，针对奇瑞公司的短期需求预测不准的问题，通过对物流需求、需求预测原理、物流需求预测的影响因素、需求预测方法等的理论性探讨，尤其是设计了需求预测模型的系数确定评价体系来改善奇瑞汽车的短期需求预测行为。

For the word of Hu Weiwu of total stylist of the core that use dragon, do a technology to need to start protracted war in certain moment, the idea early days that I design to working shedding system is do to satisfy the requirement of the market and client, and now is the research that plans to do endurance and development The friend that has industry the other day is flowing carefully in the problem that the trends in moving process revises about the job, say this demand is at present more, whether to know to get used to a design to you can satisfy this kind of requirement oneself?

用龙芯总设计师胡伟武的话来说，搞技术在某些时候需要搞持久战，我对工作流系统设计的想法前期是为满足市场和客户的需求而做，而现在是打算搞持久性的研究和开发前些天有业界的朋友在仔细关于工作流在运行过程中动态修改的问题，说目前这个需求比较多，不知道自适应设计是否能够满足这种需求？

Synthetically considering these characteristics, the method of freeway management and control are presented according to four aspects: system objective orientation and concept design, system demand and requirement analysis, system data management and network structure, traffic control and accident detecting theory as well as its application. Function and structure of system are delimitated from the point view of integration. Construction and function demand of subsystem are analyzed and basic implement projects are presented. In this thesis, system data flow and management method and target which based on system network topology structure and equipment demand are described. Traffic modeling ideology and the process of making dynamic model as well as accident detecting program are presented with centralized and distributed traffic control theory in detail, then freeway ramp control theory which based on predictive model and its theoretic pattern are explored. Finally, based on the object oriented programming, program of accident detecting and checking on freeway is developed by using visual C++ as tool.

论文综合考虑高速公路交通管理系统的上述特征，分别从系统目标定位及概念设计、系统需求分析、系统数据管理及网络结构分析、交通控制与交通事件检测理论与应用四个层面，对高速公路交通管理与控制问题进行了系统阐述，界定了系统的功能及各功能的实现要求，并从系统集成角度划分了系统的结构；分析了各子系统的信息、功能、建设等方面的需求，给出了基本实施方案要求；对系统数据流程进行了描述和梳理，提出了数据管理的方法、目标及措施，分析、设计了系统网络拓扑结构及设备需求；阐述了交通模型的建模思想和动态交通模型的建立过程，对集中式和分散式全局交通控制理论进行了详细的分析，提出了基于预测的高速公路匝道控制理论，并对理论模式及相关的问题进行了研究，分析了高速公路事件检测系统，并采用面向对象的编程思想，以Visual C++为编写工具，开发了高速公路事件检测系统分析软件。

Design changes can then be reduced to strengthen the production capability as well as further enhance product quality. The research is focused on the products of DC Power Supply. We first establish the relationship matrices among Functional Requirements, Design Parameters and Process Variables by applying the concept of product domain mapping. Secondly, we study the PFMEA of power supply and use these matrices in reverse to systematically obtain the related values between failure modes and PVs, DPs, or FRs.

本研究以直流电源供应器系列为研究对象，希望藉由系统化与量化的方式，从PFMEA失效因素的资讯，运用公理设计的观念，来探讨攸关品质要求在产品设计上的因子；首先我们应用产品领域间对应的观念建立功能需求、设计参数与制程变数之间关联矩阵，其次，研究电源供应器的PFMEA，并反向运用上述关联矩阵来系统化得到失效模式与功能需求、设计参数或是制程变数间的关联值。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。