基于CORFU FBDK的工件热处理控制系统设计

IEC 61499是一个新兴的用于分布式控制系统的国际标准,功能块是该标准的核心思想.对IEC 61499标准进行了研究,引入了CORFU FBDK工具并研究了该工具的应用方珐.研究了UML模型与功能块模型的关系.针对一个工件热处理控制系统,设计了该控制系统的UML模型和功能块模型,说明了一种将UML建模方珐与功能块概念相结合的分布式控制系统设计方法.     

符合IEC 61499的分布可重构STEP-NC控制器设计

针对作为网络化可重构生产线底层生产设备网络物理节点的数控设备控制器,分析了目前符合STEP-NC的开放式结构数控系统对分布可重构制造环境的适应性能及需要增强的环节.引入IEC 61499分布式控制机制,通过提高单台设备控制器分布可重构控制能力来提高其对生产线制造环境的综合适应能力.将加工特征作为联系两个机制的桥梁,建立了符合IEC 61499机制的数控设备Device模型.该模型设计了基于轴控制的Resource模型与本地加工功能块为主体的设备柔性控制结构,详细说明了加工事件驱动的各功能子模块的设计方法.该建模方法在四轴控制开发平台上进行了实例应用.     

基于IEC61499功能块的IPMCS设计方法

IEC制定的IEC61499标准定义了在分布式工业过程测量和控制系统(IPMCS)中使用的功能块。采用基于功能块的设计方法可以显著减少为应用所开发的控制软件的数量，节省控制系统开发的时间，提高控制系统应用软件的质量、可靠性及重复利用率。使用相同类型功能块的控制系统具有良好的一致性。     

基于IEC 61804的过程控制用功能块

IEC 61804定义了过程控制用功能块。本文介绍了IEC 61804功能块设备模型,描述了功能块的基本特征,并分析了基于功能块应用组件的过程应用,给出了IEC 61804与IEC 61499及其他标准化活动的关系。最后提出了基于IEC 61804的过程控制用功能块有待进一步完善的地方。     

IEC61131-3编程语言的现状与发展

介绍了IEC61131-3国际标准的产生、现状和发展,通过与传统编程语言比较,展现该标准的特点和优势.详细地阐述了IEC61131-3的软件模型和通讯模型,以及IEC61499标准.讨论了使用IEC61131-3标准构建控制系统的语言模式,最后给出了一个电梯控制系统实例.     

基于SOA架构的智能设计系统研究

分析了现有的智能设计系统的局限性,指出现有的智能设计系统缺少灵活性,难以适应机械产品设计模式的变化及系统重构的问题.分析了面向服务架构(SOA)的特点后,提出了面向服务架构的分布式智能设计系统.系统因其低耦合性、可重用性和扩展性,可将智能设计系统组织成群组服务模式.给出了基于Web Services实现技术的门式启闭机智能设计系统实例.     

现场总线控制系统模块化方法研究

IEC61158现场总线国际标准制定的结果表明,多种现场总线标准在相当长一段时间内将共存,我们必须面对并解决工业控制系统中异构总线并存及信息集成的问题.现场总线控制系统模块化方法研究为最终用户不必考虑具体总线技术的细节而达到操作上的一致性提供了一种思路.IEC61499为这一方法的实现提供了标准依据.     

基于多智能体的协同制造任务分解方法

在研究采用单元制造系统制造与传统企业内部生产本质区别的基础上,提出了基于多智能体的制造单元控制功能图,并描述了各功能块之间的数据流的输入与输出关系。在制造单元控制系统中,协同制造任务功能模块完成制造任务下达计划。由于资源的独立性及制造任务的分解、分配问题,合理解决制造任务冲突和资源分配问题是正确下达制造任务的关键。因此,文中提出了一种基于多智能体结构的制造任务分解、分配方法,实现了一个基于多智能体结构的制造任务分解原型系统。     

基于MAS与Web服务的网络化集成制造技术研究

为提高制造系统的智能重构能力,快速地开发、设计和制造产品,提出了基于Web服务与多智能体系统MAS的网络化制造信息集成方案,构建了基于Webservices的MAS网络化制造模型体系结构,并论述了其通信机制和协作机制的实现。该网络化制造模型有利于提高网络化制造的智能水平,优化网络化制造的系统设计。     

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。     

Structural modeling of industrial wireless sensor and actuator networks for reconfigurable mechatronic systems

Recently, the globalization of manufacturing industry systems has led to increase the competition in order to response to today’s demanding market especially in medium-size companies. The global competition requires the manufacturing systems to be flexible and reconfigurable specifically in the shop floor level where mechatronic devices reside. In this paper, a novel methodology for the development and structural modeling of industrial wireless sensors and actuators is presented in order to provide flexibility and reconfigurability to the mechatronic devices. The proposed methodology is based on the implementation of the IEC 61499 standard for the distributed control of mechatronic systems. The methodology also addresses the existing problems of this standard for capturing the system requirements in the development process. For this reason, the Unified Modeling Language is used in order to overcome this problem. A case study is presented in order to demonstrate the operational aspects of the proposed methodology.     

基于语义Web服务的协同物流与集成技术研究

利用语义Web服务理论,研究了供应链中物流资源管理与集成、物流服务与业务协作的架构和实现方法。讨论了语义Web服务过程,构建了物流资源本体,设计了基于Web服务组件的协同物流集成框架和物流服务智能搜索引擎。提出了面向服务的跨企业业务协作模型,并以订单处理流程为例详细讨论了在Java2平台企业版平台下,生产商、物流企业和客户之间业务协作的实现方法。最终实现了语义本体理论、Web服务设计理论、面向服务的协作理论和基于面向服务的体系架构的协同物流信息系统的集成。     

面向服务的可重构制造执行系统研究与实现

制造执行系统是实现企业信息集成的关键技术,是企业信息化工程领域的研究热点之一。本文把面向服务的思想引入制造执行系统,将车间资源服务化,提出面向服务的可重构制造执行系统的软件体系结构和实现方法。实例证明该系统具有良好的扩展性、可重构性和易集成性。     

Shared and service-oriented CNC machining system for intelligent manufacturing process

To improve efficiency, reduce cost, ensure quality effectively, researchers on CNC machining have focused on virtual machine tool, cloud manufacturing, wireless manufacturing. However, low level of information shared among different systems is a common disadvantage. In this paper, a machining database with data evaluation module is set up to ensure integrity and update. An online monitoring system based on internet of things and multi-sensors "feel" a variety of signal features to "percept" the state in CNC machining process. A high efficiency and green machining parameters optimization system "execute" service-oriented manufacturing, intelligent manufacturing and green manufacturing. The intelligent CNC machining system is applied in production. CNC machining database effectively shares and manages process data among different systems. The prediction accuracy of online monitoring system is up to 98.8% by acquiring acceleration and noise in real time. High efficiency and green machining parameters optimization system optimizes the original processing parameters, and the calculation indicates that optimized processing parameters not only improve production efficiency, but also reduce carbon emissions. The application proves that the shared and service-oriented CNC machining system is reliable and effective. This research presents a shared and service-oriented CNC machining system for intelligent manufacturing process.     

Model driven development of distributed control applications

Control systems rely heavily on the software that is used to implement them. However, current trends in software engineering are not fully exploited in the development process of complex control systems. In this paper, an approach for the model driven development of distributed control systems (DCSs) is presented. The proposed approach that greatly simplifies the development process adopts the function block construct introduced by the IEC 61499 standard and supports the automatic generation of implementation models for many different execution environments. It favours the deployment and re-deployment of distributed control applications and provides an infrastructure for the transparent exploitation of current software engineering practices. GME, a meta-modelling tool, was utilized to develop Archimedes, an IEC-compliant prototype engineering support system. Specific model-to-model transformers have been developed to automate the transformation of FB-based design models to CORBA-component-model based implementation models to demonstrate the applicability of the proposed approach.     

基于 CPS 的可重构制造系统在互联工厂的应用

为了解决个性化定制与大规模生产的矛盾,应用 CPS 技术和模块化制造单元,建立了完整的可重构制造系统,实现大规模个性化定制产品生产流程的高效协同。在研究了面向大规模个性化定制可重构系统特性的基础上,构建了基于 CPS 的可重构制造系统架构,研究了可重构系统的关键核心技术。建立的系统可以将生产制造的复杂行为转换为实际数据信息,通过重构分析、智能决策和动态优化调整模块化制造单元,使整个生产环节的制造资源处于有序可控状态。通过在互联工厂展开应用落地验证,结果表明了该系统的可行性和有效性。     

Function block applications in control systems based on IEC 61804

A variety of fieldbus technologies and digital fieldbus devices have been introduced within the process industries over the last ten years. There has been a gradual acceptance of the fact that a variety of communication technologies are needed to fully address the application requirements of a manufacturing facility. However, engineers responsible for the specification, engineering, and implementation of control systems require that a common interface and functionality be provided in the control system. This capability should be independent of the underlying fieldbus technology or manufacturer of the fieldbus device. The draft IEC 61804 standard defines how a control system can be structured to provide this flexibility in the utilization of fieldbus technology. In this paper, we discuss how a consistent function block capability may be provided for all fieldbus technology utilized in a control system. Examples will be given of how this standard has been applied in modern control systems to give a consistent interface to Foundation Fieldbus and PROFIBUS. Some detail will be presented on the standard means that is defined for manufacturers to describe function block capability of a field device. An analysis is given of the impact and benefit that the IEC 61804 standard will have on the process industry and on manufacturers of control systems.     

面向服务的车间制造过程信息集成运行系统

针对生产过程中车间存在多源异构信息难以有效集成的问题,在分析制造过程信息组织形式特点的基础上,提出了一种面向服务的车间制造过程信息集成运行系统的体系结构。该体系结构以制造过程信息为主要集成对象,以车间制造过程功能服务为核心,利用基于可扩展标记语言的规则映射方法对异构制造过程信息的格式进行同构化处理,为不同服务提供数据支持,并由服务对制造过程信息进行访问控制和管理;在此基础上用模型驱动的方法编排服务并再现业务流程,通过制造过程集成总线对业务流程进行监控和管理;在应用层通过不同视图将生产制造过程展现给不同用户,实现可视化生产。最后,基于上述系统体系结构和实现方法,进行了系统模块开发和应用验证。