350MW电厂厂级生产监控信息系统的实现

厂级监控信息系统SIS已成为21世纪电厂自动控制系统规范中增加的新内容，老系统改造也都在向此方向努力。从应用的角度就350MW发电机组OVATION系统实现SIS的设计思想和有关方法作了介绍，包括SIS的方案设计、工程师站和操作员站的软件设计。在电厂形成了厂级经营层（MIS）、生产管理层（SIS）和控制操作层（DCS）有机结合的自动化系统。经某电厂的实际应用证明所设计的SIS方案是可行的。     

SIS紧急停车控制系统在焦化加热炉安全控制中的应用

为确保针状焦生产装置的安全运行,在装置建设中,应合理配置紧急停车及安全联锁系统。介绍了紧急停车及安全联锁系统(SIS)系统的发展、基本应用、系统架构及SIS的联锁动作关系等等。     

电厂实时系统应用及SIS改造探讨

首先回顾了华能南京电厂实时系统的发展及应用情况,然后参照国内电厂SIS系统的发展及构成情况,对电厂实时系统和SIS系统进行了对比分析,最后提出了结合SIS系统技术逐步改造升级华能南京电厂现有实时系统的新思路。     

SIS安全仪表系统在大型乙烯装置上的应用

SIS安全仪表系统在石化装置中显得尤为重要.该系统的配置合理与否,直接影响到装置的安全运行.本文针对100万吨乙烯装置,对SIS系统的合理配置重点阐述.     

在役安全仪表系统的SIL验证方法与实例

针对国内过程工业安全仪表系统(SIS)应用中出现的不规范问题,提出要加强安全仪表系统评估和SIL验证等工作的管理,以确保SIS系统满足所需要的风险降低要求。依据SIS相关标准,介绍了SIL验证的方法、程序、在役安全仪表系统SIL验证时应具备的条件及验证不满足时的建议和措施。对某化工装置中设备液位联锁回路的检验测试周期需要延长的变更要求进行了SIL验证计算,确保了SIS系统的安全应用。     

基于外贴式液位开关的球罐SIS安全仪表系统设计

液位是储罐主要的控制参数,形式不同的储罐液位测量要求也不尽相同,本文根据外贴式液位开关的工作原理分析了其在实际使用中的优势。在化工生产中,为防止和降低石油化工工厂或装置的过程风险需设置SIS安全仪表系统,该系统的合理设计以及运行情况直接影响到装置的安全运行。本文针对某项目中的重大危险源丁二烯球罐,根据其SIL等级分析确定了球罐SIS系统的主要控制参数,具体设计了基于外贴式超声波液位开关的SIS安全仪表系统及完整的联锁控制,并投入生产运行。在实际生产中外贴式超声波液位开关可靠性高、维护简单,工作量小,设计的SIS系统安全稳定性高、运行情况良好,保证了项目罐区和整个厂区的安全生产。     

聚酯装置热媒系统的安全控制设计

本文介绍了聚酯装置的热媒系统工艺流程,并从安全仪表系统（SIS）角度分析了其中安全控制的逻辑联锁方案。     

SIS在催化热裂解制乙烯装置中的应用

在石油化工装置中,配置一套安全可靠、动作及时的安全仪表系统(SIS)是非常重要的。结合催化热裂解制乙烯项目中安全仪表系统的应用,重点介绍了TRICON安全仪表系统的硬件结构,系统组态,逻辑编程,系统调试等方面的技术实现。实际应用表明,TRICON的SIS系统是一套功能全面、安全可靠、简单易学的安全仪表系统。     

渤南陆上终端DCS系统的扩展实现

在石油化工生产环节中,DCS中央控制系统是非常重要的一部分.随着生产规模的不断扩大,技术的不断更新,DCS系统也在不断地进行升级改造,以满足生产的需求.在渤南陆上终端改造项目中,采用艾默生DeltaV和DeltaV SIS系统,对已有DCS中央控制系统中的过程控制系统(PCS)和安全仪表系统(SIS)进行扩展,使新旧系统能够无缝连接、安全运行,同时也对工程使用的软件进行了说明.该项目的完成提高了生产产量,提高了工厂的自动化控制水平.     

浅谈电厂SIS设计与实施

SIS是电厂信息系统的重要发展方向。本从信息系统角度分析了SIS的特点，提出了SIS的硬件体系结构，并提出采用面向服务架构来设计与实现SIS应用系统，以保证SIS的高扩展性、开放性和灵活性。同时，本对硬件设备和软件产品的选型提出了一定的建议。     

Exploring the evaluation framework of strategic information systems using repertory grid technique: a cognitive perspective from chief information officers

This study aims at developing an evaluation framework of strategic information systems (SIS) and evaluating the SIS planning and implementation by using a cognitive approach called the repertory grid technique. The findings are based on in-depth interviews with chief information officers (CIOs) involved with SIS developments in their organisations. This exploratory study builds on a cognitive methodology and enables us to develop the evaluation framework of SIS within the CIO's mind. In a practical viewpoint, we evaluated the effectiveness of the essential activities in the SIS planning and implementation. Results showed that activities on analysing industry and environment, analysing information system weakness and strength, formulating SIS strategy, identifying SIS initiatives, prioritising and allocating resources for SIS, documenting SIS, and liaising with top management team are well performed.     

火电厂SIS系统安全防护探讨

随着信息化的快速发展,大部分火电厂实施了SIS系统,SIS系统给火电厂生产管理提供了方便,但同时也带来了一些网络安全问题。如果SIS系统安全防护措施不到位,将影响DCS控制系统的安全稳定运行,甚至造成火电厂生产设备的损坏。文章从SIS在火电厂的实际应用出发,分析和讨论影响SIS系统安全所面临的风险,探讨SIS系统安全防护措施。     

Where’s the competitive advantage in strategic information systems research? Making the case for boundary-spanning research based on the German business and information systems engineering tradition

During the last decades, strategic information systems (SIS) research has become an influential stream within the information systems discipline. The success story of the Journal of Strategic Information Systems provides strong evidence. Yet, we believe that there is still a lot of untapped potential in the interaction of SIS research and industry. Put bluntly, it is impossible that results of SIS research are publicly available, reconstructable by subject matter experts, and valid beyond the single or very few cases and at the same time constitute the foundation of competitive advantage. We argue that SIS researchers need to become boundary spanners who actively engage in industry collaboration to help create competitive advantage and who disseminate their insights later on to advance the scientific knowledge base. We outline challenges of boundary-spanning SIS research and provide some ideas and recommendations. Wherever sensible, we draw on our experiences from the traditionally strong industry collaboration of the business and information systems engineering community from the German-speaking countries.     

Large scale spatial information systems in the built environment: An example applied to housing in the Third World

The efficient handling of land information within the urban environment, a requirement for sustainable city life, can be achieved with the application of spatial information systems (SIS). The particular application discussed in this paper is directed towards the recording and analysis of tenant-created extensions to government built housing, activity which has, in effect, turned housing consumers into housing producers. The customising of a commercial GIS is described, as is its potential use in case studies from Egypt, Ghana and Zimbabwe. Both neighbourhood structures and the layout of individual houses are capable of analysis. The integration of diverse data sets to create the SIS is outlined, as is the consequent need for comprehensive metadata. Implementation issues of SIS in the Third World are considered, along with further possible research themes such as the role of time, the topology of buildings, the use of SIS in demographics and the study of interior building circulation patterns.     

火电厂厂级信息监控系统的应用与设计

介绍了厂级信息监控系统（SIS）在全厂信息系统中的作用与功能,阐述了SIS系统的设计思想,着重从系统配置、软件平台和应用软件三个方面提出了SIS系统的实施方法,结合实例给出了一个SIS系统的设计方案,并介绍了其中主要应用软件模块的功能。     

安全仪表系统的可用性分析及其定量评估

安全仪表系统的误动作给生产带来较大经济损失,如何保证安全仪表系统既可靠又可用已提上议事日程。在分析安全仪表系统安全失效概率影响因素的基础上,采用可靠性框图法针对安全仪表系统常用表决结构的安全失效概率进行了定量研究,并给出了应用示例。研究结果表明,共因失效会增加安全仪表系统发生安全失效的概率;安全仪表系统降级工作不影响其可用性;在设备逐一测试和维修的情况下,可忽略由于测试和维修危险失效导致的安全仪表系统不可用;独立的未检测到的安全失效对安全仪表系统发生安全失效概率的贡献最大。     

Soft information set for multicriteria decision making

An information source value is perceived differently by different agents. In this paper, we present a new knowledge representation structure, termed as soft information set (SIS), to provide a parameterized representation of the information values, as perceived by an agent. The properties of SIS are investigated and the notion of relations in SIS is devised. The significance of the proposed SIS in aiding multi criteria decision making is illustrated through real case-studies.     

电厂信息系统SIS与MIS一体化

电厂厂级信息系统包括厂级监控信息系统(SIS)、厂级管理信息系统(MIS),目前各电厂的厂级监控信息系统(SIS)、厂级管理信息系统(MIS)多为独立设置。介绍了厂级监控信息系统(SIS)与厂级管理信息系统(MIS)的功能,结合分散控制系统(DCS)的应用和发展趋势,提出了厂级信息系统一体化的设想,将厂级监控信息系统(SIS)的功能分解到分散控制系统(DCS)和厂级管理信息系统(MIS)中,并对一体化后可能遇到的问题进行了分析,提出了相应的解决办法。     

Machine path generation for the SIS process

Because of the differences in the nature of rapid prototyping (RP) processes, there is no standard machine path code for them. Each RP process, based on its characteristics and requirements, uses the standard CAD file format to extract the required data for the process. Selective inhibition of sintering (SIS) is a new layered fabrication method based on powder sintering. Like other RP systems, SIS needs a specialized machine path generator to create an appropriate machine path file. Machine path (i.e., boundary path and hatch path) should produce the printing pattern that enables the SIS machine user to easily remove the fabricated part from the surrounding material. A new machine path algorithm, which generates appropriate boundary and hatch paths for the SIS process is proposed. The new machine path generator provides the ability to process CAD models of any size and complexity, the ability for machine path verification before sending the file to the SIS machine, and the ability to fix the possible STL files disconnection errors. In this system, very large STL files can be processed in a relatively small computer memory. The system has been successfully tested on STL files as large as 200 MB. The generated path files have been used in fabrication of several parts by the SIS process.