《工业通信网络现场总线规范类型10:PROFINET IO规范》(3部分)成为推荐性国家标准GB/T 25105-2014

正全国工业过程测量控制和自动化标准化技术委员会(SAC/TC124)秘书处日前举行了"推荐性国家标准GB/T 25105-2014《工业通信网络现场总线规范类型10:PROFINET IO规范》(三个部分)发布暨报告会"。根据中华人民共和国国家标准公告,《工业通信网络现场总线规范类型10:PROFINET IO规范》(3部分)已被国家质量监督检验检疫总局、国家标准化管理委员     

HMS公司推出PROFINET串行网关——Anybus Communicator串行网关将自动化设备接入PROFINET

瑞典HMS工业网络有限公司进一步扩展其产品系列，宣布推出支持PROFINET网络的Anybus Communicator串行网关。Anybus Communicator串行网关是一系列智能协议转换产品，将自动化设备的串行接口接入各种现场总线。这个产品的出现为那些不具有内置PROFINET接口的设备接入PROFINET网络提供了一种解决方案。典型应用包括将条码扫描器，RFID扫描器，称重设备，变频器和电机驱动器等设备接入PROFINET网络。     

工业以太网PROFINET安全隔离器的设计

随着智能制造技术的发展,工业控制网络的安全问题日益突出。基于工业通信网络诊断、隔离和安全防护技术,以应用前景广泛的PROFINET工业以太网为研究对象,设计了基于PROFINET的专用工业网络安全隔离器。安全隔离器主要作用于工业网络内部,具有通用的工业网络层防火墙功能。对PROFINET通信协议进行了深度解析,并识别相应的报文类型与关键数据。通过配置安全策略,并将其传输到安全隔离器,可以实时监控网络状态和PROFINET关键数据,阻断异常畸形报文,同时可以防止未授权设备的非法访问。针对以上情形产生的报警信息,将被实时发送到配置管理平台并进行报警显示。经测试表明,工业网络安全隔离器对正常工业控制网络无影响。配置策略可有效保护关键设备,从而保护工业控制网络的安全。     

基于PROFINET的卷包除尘控制系统

本文针对卷烟厂卷包除尘生产过程,设计了一套基于PROFINET工业以太网的自动化控制系统。文中详细阐述了PROFINET自控系统的结构、系统组建及调试方法。采用PROFINET工业以太网技术,实现了卷包除尘生产过程的全自动化运行,对企业的信息化集成具有重要意义。     

紧凑型管理千兆交换机SMCS

菲尼克斯电气隆重推出全球第一款全千兆导工业交换机：FLSWITCHSMCS8GT，提供PROFINET，EthernetIP实时技术，同时集成IT实时服务、图象、IP话音在同一个自动化网络中。组态与诊断可通过Web和SNMP协议、M12可插拔C—PLUG完成，[第一段]     

PROFINET简介

PROFINET由PROFIBUS国际组织（PROFIBUS International，PI）推出，是新一代基于工业以太网技术的自动化总线标准。作为一项战略性的技术创新，PROFINET为自动化通信领域提供了一个完整的网络解决方案，囊括了诸如实时以太网、运动控制、分布式自动化、故障安全以及网络安全等当前自动化领域的热点话题，并且，作为跨供应商的技术，可以完全兼容了工业以太网和现有的现场总线（如PROFIBUS）技术，保护现有投资。     

PROFINET及其应用

1．PROFINET实时通讯技术是工业以太网进入现场级通讯的钥匙（概念介绍） PROFINET由PROFIBUS国际组织（PROFIBUS International）推出，是新一代基于工业以太网技术的工业自动化通讯标准。PROFINET解决方案囊括了诸如实时以太网、运动控制、分布式自动化、故障安全以及网络安全等当前自动化领域的热点话题，并且，完全兼容工业以太网和现有的现场总线（如PROFIBUS）技术。因此，PROFINET技术的出现，将为工业自动化领域提供一种全新的通讯解决方案，即整个工厂全部使用一个网络连接在一起。     

基于PROFINET的卷烟风送除尘系统

本文介绍基于PROFINET网络实现的烟草工业风送除尘自动化控制系统.介绍PROFINET网络的组建、系统的硬件结构、软件设计思路与实现方法.对烟草企业的生产自动化的提高具有一定意义.     

开放,透明的自动化通信解决方案--PROFINET实时工业以太网简介

介绍了PROFINET实时工业以太网，分析了开放、透明的自动化通信解决方案。     

PROFINET及其在制丝线电控系统中的应用

本文介绍了采用西门子现场级工业以太网PROFINET改造烟丝制丝线电气控制系统的方法。文章详细描述了PROFINET解决方案的技术背景及其与一般现场总线的比较，分析了原有控制系统存在的缺乏柔性、功能固定和维护成本较高等问题，提出了新系统的设计方案、控制难点及其解决方法。通过升级改造，新的制丝线电控系统更加柔性化，满足了管理控制一体化的要求，提高了卷烟生产的效率。     

Call for Papers The 6^th International Conference on Grid and Cooperative Computing

Recent years have seen rapid advances in various grid-related technologies, middleware, and applications. The GCC conference has become one of the largest scientific events worldwide in grid and cooperative computing. The 6th international conference on grid and cooperative computing (GCC2007) Sponsored by China Computer Federation (CCF),Institute of Computing Technology, Chinese Academy of Sciences (ICT) and Xinjiang University ,and in Cooperation with IEEE Computer Soceity ,is to be held from August 16 to 18, 2007 in Urumchi, Xinjiang, China.     

煤矿井下安全监控分站的设计及其仿真实现

为了设计一种具有低成本、低功耗、易操作、功能强且可靠性高的煤矿井下安全分站,针对煤矿安全生产实际,文章提出了采用MCS-51系列单片机为核心、具有CAN总线通信接口的煤矿井下安全监控分站的设计方案;首先给出煤矿井下安全监控分站的整体构架设计,然后着重阐述模拟量输入信号处理系统的设计过程,最后说明单片机最小系统及其键盘、显示、报警、通信等各个组成部分的设计;为验证设计方案的可行性与有效性,使用Proteus软件对设计内容进行仿真验证,设计的煤矿井下安全监控分站具有瓦斯、温度等模拟量参数超标报警功能和电机开停、风门开闭等开关量指示功能;仿真结果表明:设计的煤矿井下安全监控分站具有一定的实际应用价值.     

法律信息库系统

本文分析了法律数据库的结构和特点，介绍了采用面向对象设计方法和超文本数据库技术开发和实现法律信息库系统将作为重要网络资源之一为不同用户进行法律咨询服务。     

View-based model-driven architecture for enhancing maintainability of data access services

In modern service-oriented architectures, database access is done by a special type of services, the so-called data access services (DAS). Though, particularly in data-intensive applications, using and developing DAS are very common today, the link between the DAS and their implementation, e.g. a layer of data access objects (DAOs) encapsulating the database queries, still is not sufficiently elaborated, yet. As a result, as the number of DAS grows, finding the desired DAS for reuse and/or associated documentation can become an impossible task. In this paper we focus on bridging this gap between the DAS and their implementation by presenting a view-based, model-driven data access architecture (VMDA) managing models of the DAS, DAOs and database queries in a queryable manner. Our models support tailored views of different stakeholders and are scalable with all types of DAS implementations. In this paper we show that our view-based and model driven architecture approach can enhance software development productivity and maintainability by improving DAS documentation. Moreover, our VMDA opens a wide range of applications such as evaluating DAS usage for DAS performance optimization. Furthermore, we provide tool support and illustrate the applicability of our VMDA in a large-scale case study. Finally, we quantitatively prove that our approach performs with acceptable response times.     

International Journal of Automation and Computing Table of Contents

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Information for authors

正SCIENCE CHINA Information Sciences(Sci China Inf Sci),cosponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China,and published by Science China Press,is committed to publishing highquality,original results of both basic and applied research in all areas of information sciences,including computer science and technology;systems science,control science and engineering(published in Issues with odd numbers);information and communication engineering;electronic science and technology(published in Issues with even numbers).Sci China Inf Sci is published monthly in both print and electronic forms.It is indexed by Academic OneFile,Astrophysics Data System(ADS),CSA,Cabells,Current Contents/Engineering,Computing and Technology,DBLP,Digital Mathematics Registry,Earthquake Engineering Abstracts,Engineering Index,Engineered Materials Abstracts,Gale,Google,INSPEC,Journal Citation Reports/Science Edition,Mathematical Reviews,OCLC,ProQuest,SCOPUS,Science Citation Index Expanded,Summon by Serial Solutions,VINITI,Zentralblatt MATH.     

Erratum to: Fast global kernel fuzzy c-means clustering algorithm for consonant/vowel segmentation of speech signal

正Erratum to:J Zhejiang Univ-Sci C(ComputElectron)2014 15(7):551-563doi:10.1631/jzus.C1300320The original version of this article unfortunately contained mistakes.Algorithm 6 should be as follows:Algorithm 6 FGKFCM-F clustering Input:(1)X={x_1,x_2,…,x_N},,x_iR~d,i=1,2,…,N,the dataset;(2)C,1C≤N,the number of clusters;(3)ε0,the stopping criterion;     

Journal of Zhejiang University-SCIENCE C (Computers & Electronics) Total contents

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A pragmatic multi-method investigation of discrepant technological events: Coping,attributions, and ‘accidental’ learning

Discrepant technological events or situations that entail a problem, a misunderstanding or a difficulty with the Information Technology (IT) being employed, are common in the workplace, and can lead to frustration and avoidance behaviors. Little is known, however, about how individuals cope with these events. This paper examines these events by using a multi-method pragmatic approach informed by coping theory. The results of two studies – a critical incident study and an experiment – serve to build and test, respectively, a theoretical model that posits that individuals use a variety of strategies when dealing with these events: they experience negative emotions, make external attributions, and adopt engagement coping strategies directed at solving the event, eventually switching to a disengagement coping strategy when they feel they have no control over the situation. Furthermore, users’ efforts may result in ‘accidental’ learning as they try to overcome the discrepant IT events through engagement coping. The paper ends with a discussion of the results in light of existing literature, future opportunities for research, and implications for practice.