In view of the lack of research on the information model of tufting carpet machine in China,an information modeling method based on Object Linking and Embedding for Process Control Unified Architecture(OPC UA)framewor...In view of the lack of research on the information model of tufting carpet machine in China,an information modeling method based on Object Linking and Embedding for Process Control Unified Architecture(OPC UA)framework was proposed to solve the problem of“information island”caused by the differentiated data interface between heterogeneous equipment and system in tufting carpet machine workshop.This paper established an information model of tufting carpet machine based on analyzing the system architecture,workshop equipment composition and information flow of the workshop,combined with the OPC UA information modeling specification.Subsequently,the OPC UA protocol is used to instantiate and map the information model,and the OPC UA server is developed.Finally,the practicability of tufting carpet machine information model under the OPC UA framework and the feasibility of realizing the information interconnection of heterogeneous devices in the tufting carpet machine digital workshop are verified.On this basis,the cloud and remote access to the underlying device data are realized.The application of this information model and information integration scheme in actual production explores and practices the application of OPC UA technology in the digital workshop of tufting carpet machine.展开更多
随着物联网与互联网融合的不断深化,感知层与应用层之间的互联互通要求不断提高。针对现有数据采集系统存在的规范性、扩展性和适应性不足的问题,文章提出一套基于对象连接与嵌入过程控制统一架构(object linking and embedding for pro...随着物联网与互联网融合的不断深化,感知层与应用层之间的互联互通要求不断提高。针对现有数据采集系统存在的规范性、扩展性和适应性不足的问题,文章提出一套基于对象连接与嵌入过程控制统一架构(object linking and embedding for process control unified architecture,OPC UA)协议的分布式数据采集处理系统架构。对数据采集处理系统各个模块进行功能解耦和架构重组,分别介绍该系统硬件和软件架构;针对发布订阅模式下负载的特异性,提出一种改进的适用于OPC UA分布式订阅的负载均衡算法;最后在某车企实例验证该系统架构。结果表明,基于OPC UA的分布式数据采集处理系统数据采集处理效果良好,证明了该系统架构的可行性及有效性。展开更多
为了从技术管理方面提高电力监控系统的安全性,避免发生无意与恶意破坏事件,面向电力监控系统的实时数据信息存储与处理,提出将用于过程控制的对象连接与嵌入(Object Linking and Embedding for Process Control,OPC)技术用于网络安全...为了从技术管理方面提高电力监控系统的安全性,避免发生无意与恶意破坏事件,面向电力监控系统的实时数据信息存储与处理,提出将用于过程控制的对象连接与嵌入(Object Linking and Embedding for Process Control,OPC)技术用于网络安全风险预警。概述设计所用的OPC服务器结构,设计基于OPC技术的电力监控系统,结合防火墙与入侵侦测技术,提高整个电力监控系统的安全管理水平,提取正常时隙预警信息为正常样本。结果发现,基于OPC技术的电力监控系统安全预警,在准确度方面具有优越性,证实了设计的基于OPC技术的电力监控系统在电力日常监管工作中的安全适用性。展开更多
To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of th...To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of the 3D visualization interactive system for digital twin workshops is proposed.As the traditional 5D digital twin model ignores the importance of human-computer interaction,a new dimension of the user terminal was added.A hierarchical real-time data-driven mapping model for the workshop production process is then proposed.Moreover,a real-time data acquisition method for the industrial Internet of things is proposed based on OPC UA(object linking and embedding for process control unified architecture).Based on the 6D model of the system,the process of creating a 3D visualization virtual environment based on virtual reality is introduced,in addition to a data-driven process based on the data management cloud platform.Finally,the 6D model of the system was confirmed using the blade rotor test workshop as the object,and a 3D visualization interactive system is developed.The results show that the system is more transparent,real-time,data-driven and more efficient,as well as promotes the coordination and integration of human-physical-virtual,which has practical significance for developing digital twin workshops.展开更多
The coating on the electrodes contains many kinds of raw materials which affect significantly on the mechanical properties of deposited metals. It is still a problem how to predict and control the mechanical propertie...The coating on the electrodes contains many kinds of raw materials which affect significantly on the mechanical properties of deposited metals. It is still a problem how to predict and control the mechanical properties of deposited metals directly according to the components of coating on the electrodes. In this paper an electrode intelligent design system is developed by means of fuzzy neural network technology and genetic algorithm,, dynamic link library, object linking and embedding and multithreading. The front-end application and customer interface of the system is realized by using visual C ＋＋ program language and taking SQL Server 2000 as background database. It realizes series functions including automatic design of electrode formula, intelligent prediction of electrode properties, inquiry of electrode information, output of process report based on normalized template and electronic storage and search of relative files.展开更多
针对薄板分段车间的焊接装备复杂化程度高、焊接作业监控困难、焊接信息反馈不及时等问题,研究薄板分段车间T型梁焊接机器人的工艺流程和工艺参数,开发一种基于对象链接与嵌入过程控制的统一架构[OLE(Object Linking and Embedding)for ...针对薄板分段车间的焊接装备复杂化程度高、焊接作业监控困难、焊接信息反馈不及时等问题,研究薄板分段车间T型梁焊接机器人的工艺流程和工艺参数,开发一种基于对象链接与嵌入过程控制的统一架构[OLE(Object Linking and Embedding)for Process Control Unified Architecture, OPC UA]技术的T型梁焊接机器人在线监测系统。该系统主要对T型梁焊接机器人的生产进度、设备运行状态和中间产品质量等进行在线监测,实现数据实时采集和生产过程监控与分析等功能,可消除设备之间的信息孤岛现象,实现车间生产透明化,提高生产效率,确保焊接质量。展开更多
介绍了一种在VB中通过ADO(ActiveX Data Objects)的Stream对象操作数据库中BLOB(Binary LargeObject)数据(如图形、声音文件或带格式的大文本文件等),并将其显示在OLE控件中的简单、高效的方法,阐述其工作过程及特点,并以处理SQL Server...介绍了一种在VB中通过ADO(ActiveX Data Objects)的Stream对象操作数据库中BLOB(Binary LargeObject)数据(如图形、声音文件或带格式的大文本文件等),并将其显示在OLE控件中的简单、高效的方法,阐述其工作过程及特点,并以处理SQL Server中Image字段为例加以说明。展开更多
文摘In view of the lack of research on the information model of tufting carpet machine in China,an information modeling method based on Object Linking and Embedding for Process Control Unified Architecture(OPC UA)framework was proposed to solve the problem of“information island”caused by the differentiated data interface between heterogeneous equipment and system in tufting carpet machine workshop.This paper established an information model of tufting carpet machine based on analyzing the system architecture,workshop equipment composition and information flow of the workshop,combined with the OPC UA information modeling specification.Subsequently,the OPC UA protocol is used to instantiate and map the information model,and the OPC UA server is developed.Finally,the practicability of tufting carpet machine information model under the OPC UA framework and the feasibility of realizing the information interconnection of heterogeneous devices in the tufting carpet machine digital workshop are verified.On this basis,the cloud and remote access to the underlying device data are realized.The application of this information model and information integration scheme in actual production explores and practices the application of OPC UA technology in the digital workshop of tufting carpet machine.
文摘随着物联网与互联网融合的不断深化,感知层与应用层之间的互联互通要求不断提高。针对现有数据采集系统存在的规范性、扩展性和适应性不足的问题,文章提出一套基于对象连接与嵌入过程控制统一架构(object linking and embedding for process control unified architecture,OPC UA)协议的分布式数据采集处理系统架构。对数据采集处理系统各个模块进行功能解耦和架构重组,分别介绍该系统硬件和软件架构;针对发布订阅模式下负载的特异性,提出一种改进的适用于OPC UA分布式订阅的负载均衡算法;最后在某车企实例验证该系统架构。结果表明,基于OPC UA的分布式数据采集处理系统数据采集处理效果良好,证明了该系统架构的可行性及有效性。
文摘为了从技术管理方面提高电力监控系统的安全性,避免发生无意与恶意破坏事件,面向电力监控系统的实时数据信息存储与处理,提出将用于过程控制的对象连接与嵌入(Object Linking and Embedding for Process Control,OPC)技术用于网络安全风险预警。概述设计所用的OPC服务器结构,设计基于OPC技术的电力监控系统,结合防火墙与入侵侦测技术,提高整个电力监控系统的安全管理水平,提取正常时隙预警信息为正常样本。结果发现,基于OPC技术的电力监控系统安全预警,在准确度方面具有优越性,证实了设计的基于OPC技术的电力监控系统在电力日常监管工作中的安全适用性。
基金The National Natural Science Foundation of China(No.51875332)the Capacity Building Projects of Some Local Universities of Shanghai Science and Technology Commission(No.18040501600).
文摘To improve the human-physical-virtual coordination and integration of the digital twin workshop,3D visual monitoring and human-computer interaction of the digital twin workshop was studied.First,a novel 6D model of the 3D visualization interactive system for digital twin workshops is proposed.As the traditional 5D digital twin model ignores the importance of human-computer interaction,a new dimension of the user terminal was added.A hierarchical real-time data-driven mapping model for the workshop production process is then proposed.Moreover,a real-time data acquisition method for the industrial Internet of things is proposed based on OPC UA(object linking and embedding for process control unified architecture).Based on the 6D model of the system,the process of creating a 3D visualization virtual environment based on virtual reality is introduced,in addition to a data-driven process based on the data management cloud platform.Finally,the 6D model of the system was confirmed using the blade rotor test workshop as the object,and a 3D visualization interactive system is developed.The results show that the system is more transparent,real-time,data-driven and more efficient,as well as promotes the coordination and integration of human-physical-virtual,which has practical significance for developing digital twin workshops.
文摘The coating on the electrodes contains many kinds of raw materials which affect significantly on the mechanical properties of deposited metals. It is still a problem how to predict and control the mechanical properties of deposited metals directly according to the components of coating on the electrodes. In this paper an electrode intelligent design system is developed by means of fuzzy neural network technology and genetic algorithm,, dynamic link library, object linking and embedding and multithreading. The front-end application and customer interface of the system is realized by using visual C ＋＋ program language and taking SQL Server 2000 as background database. It realizes series functions including automatic design of electrode formula, intelligent prediction of electrode properties, inquiry of electrode information, output of process report based on normalized template and electronic storage and search of relative files.
文摘针对薄板分段车间的焊接装备复杂化程度高、焊接作业监控困难、焊接信息反馈不及时等问题,研究薄板分段车间T型梁焊接机器人的工艺流程和工艺参数,开发一种基于对象链接与嵌入过程控制的统一架构[OLE(Object Linking and Embedding)for Process Control Unified Architecture, OPC UA]技术的T型梁焊接机器人在线监测系统。该系统主要对T型梁焊接机器人的生产进度、设备运行状态和中间产品质量等进行在线监测,实现数据实时采集和生产过程监控与分析等功能,可消除设备之间的信息孤岛现象,实现车间生产透明化,提高生产效率,确保焊接质量。
文摘介绍了一种在VB中通过ADO(ActiveX Data Objects)的Stream对象操作数据库中BLOB(Binary LargeObject)数据(如图形、声音文件或带格式的大文本文件等),并将其显示在OLE控件中的简单、高效的方法,阐述其工作过程及特点,并以处理SQL Server中Image字段为例加以说明。
