水泥厂核子秤配料控制系统的改造

以水泥厂配料系统为背景，针对原有核于秤系统存在的缺陷，给出了电子秤系统改造方案;结合了PLC控制系统的优势以及电子秤的高精度、高可靠性等特点，详细介绍了系统的软件和硬件配置;通过实际应用，证明了该改造方案具有很多优点；改造后系统的稳定性和精度得到了很大的提高。取得了良好的控制效果。     

DCS在制氧行业的应用

本文主要介绍如何利用制氧机组搬迁改造机会用先进的DCS技术，改造原系统，落实工艺控制及其实现，并详细讨论了设计选型原则及具体实现，该系统投入方便操作，提高了整个系统的控制水平。     

应用协同改造工具-TCA

将传统CAD软件改造成支持多成员协同操作的应用协同工具尚无完全通用的技术，通常只能逐个地对传统CAD软件进行改造，为了提高改造效度和通过改造建立的应用协同工具的健壮性，作者设计了一个应用协同改造工具的原型系统，该原型系统不但提供了能减轻使用者开发负担所必需的服务，而且也给改造工具的使用者提供了足够的灵活性，以方便使用者对传统CAD软件进行改造。     

可编程控制器在水闸程控系统中的应用

采用EX100PLC对中山东河水闸进行集中控制的系统改造，提高了系统的可靠性，安全性和运行效率，安全取代了闸门的人工控制。     

炼油厂油品罐区泵房计算机控制系统

本文简述了利用计算机对炼油厂罐区泵房改造的方法，同时阐述了汽缸阀改造的原理，通过对油泵出口阀的自动调节控制解决了油泵在运行中的液击和抽空等问题。并且系统的各种运行参数可以并入了企业的网络，提高了企业管理水平，该系统应用效果很理想。     

倍福总线端子在干冰膨胀烟丝线上的应用

使用倍福总线端子系统，通过PROFIBUS—DP网络，改造旧的干冰膨胀烟丝生产线控制系统。改造后的控制系统充分利用了总线端子的优势，通过合理、优化的选型配置，达到了生产线控制要求，提高了设备运行效率及控制精度。     

一种基于消息中间件的多服务器文件存贮系统

定义了存贮服务的基本操作模型，然后介绍了一个在校园网上提供文件存贮服务的系统设计与实现。该系统具有如下特点：①多服务器联合，多台经过增强改造的FTP服务器形成一个对用户透明的整体；②FTP服务器之间按照一定的规则自动进行备份和复制，从而提高了系统的可靠性和在故障情况下的可用性；③FTP服务器之间的协调通信由消息中间件完成，使得系统实现简捷、运行可靠；④通过对特定DNS服务器的改造，系统能够自动为用户选择一个当时性能较好的FTP服务器连接，从而不仅提高了性能，还由于负载的分散，提高了系统在非故障情况下的可用性。     

利用PLC实现电梯动态寻优选层的逻辑控制

论述采用ＰＬＣ对电梯的电控系统进行改造的主要方法，着重介绍最大目标动态寻优 的设计思路及整个系统硬件，软件的方法，对改造老工电梯，提高国产电梯的技术水平和质量，具有重要的意义。     

嵌入式环境中的软件构件化研究

根据嵌入式系统的固有特点，将构件化的思想引入到嵌入式系统中，对嵌入式软件进行了构件化改造。针对底层驱动和操作系统的构件化，可有效提高软件系统的可移植性以及安全性；对应用层软件的构件化，提高了嵌入式软件的可配置性，并减少了软件系统的每个应用的体积。最后以嵌入式通讯协议栈为例，测试了构件化对软件性能的影响，对嵌入式软件的构件化改造有参考意义。     

基于RTU的油田注水系统的改造设计

以石南联合处理站注水系统的RTU为例，从分析系统的缺点入手，提出了新的改造方案，并付诸实施后，解决了以前存在的问题，保证了系统安全高效地运行，提高了企业的经济效益。     

新型沥青冷再生搅拌设备控制系统设计

本文提出一种新型的基于数字PID控制的系统设计方案。该系统采用自主开发的上位机软件和可靠性强的可编程控制器,并利用变频调速实现配料系统的闭环控制,实现搅拌设备的生产自动化,提高了搅拌设备的稳定性、可维护性及生产效率。     

西门子S7-300 PLC在卷烟生产线中的应用

Super9/PA9滤嘴卷烟生产线是MOLINS公司生产的卷烟机械,采用西门子SimaticS7-300PLC为下位机,工控机为上位机,开发了Super9/PA9滤嘴卷烟生产线控制系统。它替换和简化了原有的电路板控制系统,提高了系统的自动化水平,使整个生产线的运行性能、可维护性、故障排除等都得到了极大的提高。     

微硬盘动态特性测试系统设计与实现

硬盘动态机械特性对硬盘的性能有着重要的影响,对其进行精密而又高效的测量是硬盘生产所必须的。首先讨论了现有测量硬盘动态特性方法的优缺点,然后结合微硬盘的结构特点和生产要求,设计了一种测试微硬盘动态性能的方法和测试系统。该系统通过计算机与微硬盘通信,共同完成测试;它不受昂贵测试设备和苛刻测试环境的限制,具有多个微硬盘可并行测试的体系结构,满足实际生产线测试速度和测试精度要求。具体介绍了系统的工作原理,各个模块的设计与实现,并给出了测试结果。     

产品性能计算系统集成框架及关键技术

产品设计中性能计算占重要的地位,目前其各种性能计算系统集成成为关键,以履带车辆性能计算系统集成为例,给出其实现集成框架与关键技术。采用Web Services 技术实现基于Web服务的性能计算集成系统。主要包括：服务端集成了不同语言实现的异构的性能计算软件,设计人员通过浏览器调用服务器端的性能计算服务程序。利用SOAP协议进行服务请求和传递计算结果,采用WSDL描述服务。软件应用结果表明该系统是有效的。     

An investigation into sustainable product conceptualization using a design knowledge hierarchy and Hopfield network

In recent years, there has been a paradigm shift on providing design services from manufacturing/marketing to sustainability. Although a number of studies have been conducted on sustainable issues in many aspects, impacts such as multidisciplinary integration and product life-cycle consideration have not been thoroughly investigated. Therefore, it is worthwhile to investigate into the integration of functional, marketing, and commercial perspectives with product sustainability in the early stage of product conceptualization. In this study, a sustainable product conceptualization system (SPCS) is proposed. The product platform of a specific product is first generated by designers or domain experts using general sorting, a requirement acquisition technique, and design knowledge hierarchy (DKH), a knowledge representation structure. Based on the product platform, initial design options can be obtained using morphological configuration, i.e., combining different part options. Subsequently, the Hopfield network is used to narrow down initial design space based on initial design criteria solicited by domain experts. To select the preferred design options for the purpose of sustainable product conceptualization, the sustainability-cost pairs can be obtained based on the rated sustainability and cost criteria solicited using repertory grids by domain experts. Consequently, the results are discussed on the coordination between product sustainability degree and cost efficiency. A case study on cellular-phone design is conducted for system illustration.     

基于组态软件的引信检测模拟仿真系统研究

详细介绍了基于组态软件的引信模拟仿真系统的构成、特点及其应用，并针对本套系统特点及应用范围进行了讨论。本系统应用范围宽，可以在不同的检测生产线上使用。     

基于DPHM的民用飞机地面支持系统设计

国内故障诊断、预测与健康管理领域尚未形成完整的健康管理系统,地面支持系统的架构研究处于起步阶段。通过借鉴国际先进的民机健康管理的技术、规范和成功经验,深入研究了民机运营支持和产品技术支援的健康管理业务需求和应用需求,从数据模型、平台架构、业务架构三个方面提出了民用飞机基于DPHM的地面支持系统架构设计方案。依据架构设计方案,开发了原理样机,并进行了实验验证。实验验证显示,原理样机能够正确解码原始数据,演示功能符合预期,模块间接口顺畅,从而表明了地面支持系统架构设计方案的可行性。     

Product design logic for an intelligent product modelling system

Recent research in CAD systems has been conducted to realize intelligent processing. Several CAD systems and product modelling systems have been developed using AI techniques. However, in order to develop more intelligent CAD systems, the design logic which connects the functional requirement to the geometric and the technological information of the designed product must be evaluated.

A product model used in such intelligent CAD systems has to include not only the geometric and the technological information of the product but also the designer's thought process which explains the design logic.

Design logic is generally divided into two parts. One is the generalized design logic which is commonly used in the conceptual design of mechanical products. The other is the product specified design logic which is used in the fundamental and detailed design phase. Different logic is applied to each product. This type of design logic is often used in modification design and compilation design, where the dimensions of parts have to be modified according to different functional requirements. When the dimensions and accuracies of the products are defined in connection with the functional requirements through design logic, the CAD system can automatically make decisions according to the given requirements. In this paper, suitable presentation formats and processing functions for these two types of design logic are discussed.

The importance of design logic in product modelling is proven through several case studies in this paper. As a conclusion, the intelligent product modelling system is developed, which should expedite the progress of design automation in the near future. In conceptual design, the design logic is processed in the modelling system and the product structure, with the technological information decided automatically from the functional requirement. Automation in the detailed design phase is also facilitated by the modelling system using the product specified design logic in the product model.     

Product information visualization and augmentation in collaborative design

In this paper, a collaborative system for product information visualization and augmentation is presented. The developed system allows the users, who can be remotely distributed, to view a product model, which is a geometric representation of the product, from different perspectives. They can choose to view design and product history, such as previous modification processes and feature information of the product independently. The product models displayed to the users are immediately updated after any design modifications have been made to the CAD model. Product features being discussed can be highlighted to draw the users’ attention. In addition, modifications can be displayed dynamically for the users to evaluate the design effect. The product history document module in the system provides a user-friendly interface for retrieving design records. After a specific record has been chosen, the related product model is displayed, and it can be aligned with the current product model for the ease of comparison and evaluation. The feature information of the product is displayed using virtual “floating” annotations linked to the related features. A user interface to enter annotations is provided, and the annotations entered by different users can be shared in real time. A cluster-based greedy algorithm is implemented to avoid overlapping annotations in the field of view.     

船舶企业质量控制模型及数据仓库的构建

为有效对船舶企业产品质量进行控制和分析,针对造船企业质量信息特点,提出了基于过程质量数据仓库的多维数据模型,建立了面向主题的船舶企业质量数据仓库。并通过对OLAP数据源中抽取的数据进行转换,构建了面向产品实现全过程的企业主题数据模型,为船舶企业质量管理体系的稳步改进提供了技术保证。通过在某船舶企业的实际应用,验证了该模型和方法的合理性和有效性。