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1.
在成功地开发了工控组态软件的基础上,给出了实现画面组态、I/O组态。报表组态、实时监控、操作管理、报警管理等等功能的原理和方法,阐明了组态软件必须提供完善的组态手段和全面的采集、监控功能,更要保证可靠性和实时性.  相似文献   

2.
应用SIEMENS公司的WINCC组态软件实现了尿素包装输送系统的设计.阐述了系统硬件组成,监控系统设计和系统保护的功能与特点.使用WINCC组态软件编制上位机界面,利用PROFIBUS通讯连接PLC和上位机,通过实施达到了较好的控制效果.  相似文献   

3.
李奎 《科技信息》2012,(3):181-182
利用组态王软件实现组态应用教学、三菱PLC的远程监控系统,构建了虚拟监控系统网络,实现了单套实训设备的监控管理功能.设计了基于FX2N-128MRPLC和组态王软件的溶液混合设备虚拟控制系统,通过IE浏览器实现了远程监控的功能.减少了设备硬件损耗。  相似文献   

4.
简要介绍了利用组态软件实现的消防控制系统,阐述了该系统的构成、工作原理、特点及组态在该系统中的应用.  相似文献   

5.
控制网络组态软件中网络监控管理的研究   总被引:1,自引:1,他引:0  
网络的维修、维护、监控是关系到控制网络组态软件使用配置方便灵活程度、系统的可维护性指标、系统的可靠性指标的关键因素.提出了组态软件的体系结构,探讨该网络监控管理的相关问题,并蛤出了网络监控管理的实现方法.  相似文献   

6.
戴伟 《科技信息》2009,(35):361-362
将组态开发技术应用在热电站冲灰渣监控系统的设计中,对整个系统的硬件配置、控制功能扣软件实现进行了分析。采用GEFUINCE的Cimplicity6.0组态软件作为软件开发平台,实现监控系统的远程操控和数据管理分析各项功能。系统不仅界面友好、操作方便、扩展性强,同时组态开发技术也缩短了开发周期、减少了开发费用。  相似文献   

7.
信息系统组态平台及其构件复用技术   总被引:2,自引:0,他引:2  
在讨论软件构件技术的基础上,借鉴工业控制自动化领域的组态思想,提出了支持构件复用的信息系统组态平台及其组态开发模式.它面向需求动态变化的最终用户,以组态方式通过可复用构件的动态组合实现应用系统,从而提高应用软件系统的开发速度和效率及其可维护性、可重构性和可扩展性.  相似文献   

8.
基于DDE技术的MATLAB和WinCC数据的通讯与分析   总被引:1,自引:0,他引:1  
唐传斌  王伟 《科技信息》2008,(36):81-82
为了充分利用WinCC实用性强、组态灵活等优点和MATLAB科学工程计算软件包进行复杂运算的效率很高,可以很容易地实现复杂控制算法等优点,挥各自优势,采用DDE技术来实现MATLAB和组态软件WinCC之间的通信方法,实现了MATLAB下算法数据的实时获取.并编制相应算法对获取的数据进行分析。应用表明,该监控系统安全可靠,且功能更灵活。  相似文献   

9.
基于组态软件的GPRS通信数据采集系统   总被引:1,自引:1,他引:0  
提出了基于组态软件的GPRS通信应急电源数据采集系统.对GPRS通信技术和力控组态软件进行了分析,并阐述了利用力控组态软件、GPRS组件和IO驱动开发包所开发的数据采集系统的原理.  相似文献   

10.
文章讨论一些西文工控组态软件界面的汉化问题。首先分析了常用的西文工控组态软件如CIM-PAC和COROS的界面,指出这种界面文件格式的存储特点,然后编写程序以图形处理方式改造界面,最终使该工控软件具有汉字界面.  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

13.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

14.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

15.
正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-  相似文献   

16.
We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-  相似文献   

17.
正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that  相似文献   

18.
For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the  相似文献   

19.
Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of  相似文献   

20.
<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with  相似文献   

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