基于Web服务的数字化车间质量控制系统

针对离散型生产车间质量控制水平存在差异性问题以及数字化制造环境的跨平台运行特点,提出了在Web环境下质量数据实时传递、处理,质量状态在线控制的系统模式,分析了系统功能体系结构,并运用SPC(Statistical Process Control)理论和Web服务技术开发了动态质量控制系统。重点介绍了质量控制服务功能的实现方法,通过应用验证了基于Web服务的质量控制系统的可行性,从而使数字化车间的质量控制系统实现网络化和集成化。     

WebField ECS-100控制系统及其在循环流化床锅炉控制中的应用

Web Field ECS-100是浙江中控技术股份有限公司开发的基于Windows2000操作系统的自动控制系统,是中控推出的基于Web技术的网络化控制系统,采用Web化体系结构,突破了传统控制系统的层次模型．实现了多种总线兼容和异构系统综合集成的“网络化控制系统”。它由Pro2.50组态软件包及Web Field ECS-100相关硬件两部分组成。     

网络化制造中车间层分布式数字控制系统信息集成框架研究

构建了车间层分布式数字控制系统信息交互平台体系结构,该平台融合了设备层信息与车间层控制、管理信息,可实现底层设备与上层应用系统之间的信息交换与融合集成。提出了基于多智能体的分布式数字控制系统信息集成框架,建立了网络结构及通信机制;论述了多智能体在此集成框架下实现分布式数字控制系统基于总线的设备集成控制,以及与企业内部系统基于公共对象请求代理体系结构的信息集成和与外部系统基于Web服务的信息集成;对其中多智能体、可扩展标记语言消息封装、Web服务等关键技术进行了探讨。阐释了该平台的实现及应用,验证了其可行性。     

智能重构制造控制系统集成框架

为提高制造控制系统的智能重构能力,扩展了IEC 61499基本功能块模型,提出了知识功能块新概念,并将其作为功能单元构建了智能重构制造控制系统集成框架.在阐述了智能重构与智能控制并行执行过程的基础上,提出了基于Web Services面向服务的制造控制系统软件体系结构,并采用统一化建模语言建模语言进行了系统设计.通过一个原型系统运行实例,验证了IEC 61499功能块标准、Web服务中间件和面向服务哲理在实现智能重构制造控制系统方面的有效性.     

基于Web及"Infranet+Intranet+Internet"一体化技术的SCADA控制模式是城市污水处理厂综合自动化控制系统的发展方向

本文从城市污水处理行业背景的角度介绍了基于Web及“Infranet Intranet Internet”一体化技术的SCADA模式是当前工业综合自动化控制系统的发展方向，对规划和设计城市污水处理厂配套的综合自动化控制系统具有指导意义。     

基于Web远程运动控制系统的研究

首先以快速成形机为模型分析了单机运动控制系统的结构,然后在分析了Internet远程运动控制可行性的基础上,设计了基于Web的远程运动控制系统,通过网络和数据封装技术,结合网页设计,实现了对快速成形机的远程数据采集和控制。     

基于Modbus总线的食用菌栽培环境控制系统研发

为了实现食用菌栽培生产过程的数字化和自动化,基于Modbus总线技术及Web技术,提出食用菌栽培环境计算机控制系统层次体系结构。软件采用C/S架构。控制系统服务端实现数据采集处理及智能控制,并具有组态配置控制系统功能;客户端实现用户操作界面,可多用户远程并发连接服务端操作。结合菇房环境控制需求,控制系统硬件利用RS485总线实现分布式控制结构,各子系统相对独立,易于扩展,并提高可靠性。     

基于Web技术的远程监控系统研究

在明确远程监控系统概念基础上,分析了基于Web技术的远程监控系统在工业控制领域应用前景.阐述了交互式Web技术和三维虚拟Web技术的实现机制,举例说明了以太网上基于Web技术的远程监控系统实现方案,最后对基于Web技术远程监控技术在工控领域应用提出了展望.     

基于Internet和现场总线的测控系统研究

介绍一种基于Internet和现场总线的远程实时检测与控制系统方案,详细阐述了系统的整体结构、软硬件配置、系统关键技术等.用户可在异地使用IE或Netscape等Web浏览器,通过Internet对远程的工业系统进行检测与控制.系统采用CAN总线技术,极大地提高了实时性和可靠性.     

基于Web Service的温室远程监控系统设计

根据温室特点和Web Service技术原理,提出了基于Web Service技术的3层温室远程控制系统架构.采用.Net开发Web Service组件,利用JSP直接调用Web Service控制接口,开发了对温室进行远程手动控制的Web页面.结合J2EE开发Web服务器程序和基于Web模式的客户端程序,实现了温室的远程登录、参数查询和动态曲线显示等功能.温室远程监控系统已在实验温室和校园网内得到应用,结果表明其各项功能运行正常,系统稳定可靠.     

基于Web的焊接过程远程监控系统构建

分析了焊接过程远程监控系统的功能和结构，给出了一种基于Web的焊接过程远程监控系统的设计方案，并归纳了设计焊接过程远程监控系统的若干准则。开发的焊接过程远程监控系统在点焊焊接中的应用表明，基于Web的焊接过程远程监控系统具有运行稳定、控制动作迅速、数据传送实时性好等特点，可应用于CIMS环境下的焊接单元集成。     

基于CompactRIO的数据采集系统

基于网络的远程数据采集是工业测控系统中的重要环节。本文提出了一种基于CompactRIO嵌入式系统的数据采集系统。该系统能够实施采样、存储及分析各种不同类型的模拟信号,通过结合CompactRIO高速数据处理能力和LabVIEW图形化开发环境。实现了高速采样的实时控制和数据存储。     

基于Web的PDM系统中文档管理的研究及实现

传统的C/S模式的产品数据管理(PDM)系统已经不能满足异地协同设计和远程信息共享的实际需求,而B/S模式的基于Web的PDM系统使异地之间的信息共享成为可能.通过分析基于Web的PDM系统的文档管理对象及其在Web环境下的数据格式,提出了文档管理模块的4层分布式体系结构,实现了该系统的文档管理模块.     

A Web-based Kanban system for job dispatching, tracking, and performance monitoring

A Kanban system facilitates lean principles in a simple and effective way. While reportedly successful in many manufacturing firms, the conventional Kanban systems using physical cards suffer from human errors, limited tracking capability, and so on. To make the information flow leaner, software providers add new features to their existing programs for manufacturing systems to computerize Kanban activities. As Web-based technologies advance rapidly, developing an entirely Web-based Kanban system appears to be feasible and promising. This paper presents the advantages, limitations, and challenges of Web-based Kanban systems. An experimental program has been developed based on PHP+MySQL, a popular Web programming platform. The server-executed program features cross-platform compatibility, real-time tracking and performance monitoring, and greatly enhanced information contents compared to physical Kanbans. Human errors are minimized by the automated transactions; nevertheless, the interfacing and data maintenance require further research efforts.     

A component-based product data management system

Companies today have been attempting to expand their Internet infrastructures to cope with the growth of global business environments. In modern manufacturing industries, they are migrating their legacy product data management (PDM) systems to Web-based systems (being an essential tool of eManufacturing) to use the Internet. Accordingly, recent advances in PDM technology have dealt with the use of Web-based technology. Some research and development on Web-based PDM systems has been described in the literature, but those efforts have technical limits. They are not adequately available, secure, reliable, and scalable for global enterprise services. This paper describes the design of a component-based product data management (CPDM) system for supporting global manufacturing. The CPDM system is aimed at assuring flexibility, security, stability, and maintainability by utilizing a standard architecture of J2EE technology. The CPDM system consists of three tiers based on the J2EE architecture. The first is the presentation tier implemented as JSP/servlet components to allow users to access the system through a Web browser. The second is the business logic tier, which is implemented as Enterprise JavaBeans (EJB) components to handle the core PDM functionality. The third level is the data tier, composed of a database and vault for the physical files. To develop the components of the CPDM system, a component-based development (CBD) approach is proposed. The associated component development procedure is illustrated with examples. The CPDM system is also tested for its performance.     

基于Web的机器人遥操作及其运动仿真的研究

针对基于Web的机器人遥操作及运动仿真进行研究,提出了三层B/S结构模型,实现了以.Net分布式远程调用技术为网络基础的机器人远程控制,并结合VRML三维建模进行运动仿真,有效的提高了机器人遥操作的可靠性以及位置精确性,最终以三自由度机器人为例,验证了系统有效性。     

Manufacturing e-quality through integrated web-enabled computer vision and robotics

This paper investigates the development of a Web-based quality control system with the use of Internet-based computer machine vision. Such a system allows designers located far from the production facility to monitor, control, and program the quality inspection process as the product design evolves. Quality control tasks are performed and monitored remotely through the Web where Internet-based machine vision sensors inspect part dimensions and tolerance while Internet-enabled robots perform the necessary robotic operations. The remote quality monitoring system—which lets the user monitor the part status including data, image, and video through the Internet—is built using Java. The use of Java allows for interconnection and data transfer between the different components of the Web-based quality system and the robots. The ability to access and control quality control devices via the Web benefits the current manufacturing environment in the following ways: ubiquitous access to the production floor, remote control/programming/monitoring capability, and integration of production equipment into information networks for improving efficiency and product quality.     

Web-based remote monitoring and fault diagnosis system

This paper proposes an approved Web-based multilayer distributed software architecture solution for remote monitoring and fault diagnosis. To tightly integrate legacy monitor systems, a component framework model based on COM has been proposed, which is very suitable for remote monitoring and fault diagnosis applications. This system has the potential for exchanging a data acquisition system by using wrapper service components. A mixed thick Web client architecture is proposed to implement real-time remote monitoring. A Web-based remote monitoring and fault diagnosis system is developed by using modeling technology, Web application technology, component technology and VME extension for instrumentation (VXI) bus technology, which publishes a fault diagnosis algorithm package, a basic monitoring package and an advanced analysis package on the Internet. This system provides authorized users with an effective and instant way to access new monitoring and diagnosis component packages in time. This paper gives researchers a paradigm to accomplish similar systems. The technique developed may be used for other fields, such as power engineering, manufacture and transportation system.     

采用多分支广义表方法实现基于Web的数控铣削仿真

刀具轨迹验证问题一直是数控加工技术的难点,基于Web的数控加工仿真还面临精确性与实时性之间的矛盾。提出并实现了多分支广义表结构,介绍了采用VRML语言的ElevationGrid结点定义毛坯网格模型的一般方法,以及这一方法的缺陷;提出并定义了多分支广义表数据结构,构造了多分支广义表结构的数据类型和相应的递归循环算法。与普通广义表相比,多分支广义表主要有动态深度、自适应规模等优点。构造了VRML超集和远程数控通信机制。通过进行基于Web的仿真试验表明:采用多分支广义表表达的工件模型,与静态精度建模方法相比,有较好的实时仿真效果。     

基于web的交互式虚拟装配平台的开发与实现

基于网络的虚拟装配是实现产品网络化设计制造的一项重要技术,当前已经成为研究热点。提出了一个基于web的交互式虚拟装配平台,用于实现网络化的虚拟产品装配显示、管理和控制等;主要研究了该平台的体系结构及支持网络化虚拟装配中的几类关键技术与解决方法,在此基础上,开发了一个基于web的交互式虚拟装配平台原型系统。