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1.
针对大型水电工程施工系统的特点及对控制、维护与管理方面的需求,在综合应用计算机技术、先进控制技术和现代管理技术的基础上,研究了大不电工程施工控制、维护、管理集成系统,并对施工设备的故障诊断、成本分析模型和优化调度几个关键技术进行了讨论。  相似文献   

2.
基于多智能体技术的出行诱导管理系统研究   总被引:5,自引:0,他引:5  
将实时道路网络动态交通信息与交通管理专家的知识和经验结合起来,基于多智能体技术设计了以城市现有交通管理中心为基础的出行诱导管理系统.该系统通过黑板模型集成了包含在出行诱导管理过程中的交通问题类型确定、分流交通量预测和分流交通量控制3个智能体.系统使用一个管理智能体通过黑板模型对这3个智能体进行集中控制,使每一个智能体能够与黑板通信,智能体之间在黑板上进行信息分享与协作.研究表明,应用多智能体技术设计的出行诱导管理系统能对出行诱导负效应的产生进行实时跟踪和控制.  相似文献   

3.
针对变风量(VAV)空调系统的特性,将VAV系统分解为多个智能体,提出了基于多智能体技术的分布式智能控制方法,有效地解决了变风量空调系统回路间的解耦和协调问题。建立了VAV系统的动态仿真程序,仿真结果表明该控制方法是有效的。  相似文献   

4.
崔富义 《科技信息》2011,(3):I0079-I0079,I0117
本文主要介绍了一种完全基于LON总线技术的现场总线楼宇综合控制教学系统。该系统具备IBMS系统两级网络和三层管理(控制)的典型结构,克服了以往楼宇集成系统中的信息孤岛和使用协议转换网关的局限性,是一种真正开放的、具有标准对等体系网络结构的楼控集成系统。系统具有结构完整、技术先进、直观形象和覆盖面广的特点。  相似文献   

5.
敏捷制造环境下基于多智能体的车间控制系统   总被引:1,自引:0,他引:1  
针对敏捷制造的需求,提出了一种基于多智能体的车间控制系统,这种控制系统是由重构智能体,任务智能体、资源管理智能体、制造资源智能体构成的多智能体系统,通过智能体的自治和智能体之间的相互协调,完成车间控制任务并保证其敏捷特征,讨论了各种智能体的功能、作用和行为。  相似文献   

6.
研究了具有加权平均预测的一阶多智能体系统一致性的采样控制问题。应用时滞分解技术得到了基于采样数据的离散时间一致性协议,同时,使用代数图论、线性系统的稳定性理论,获得了确保具有加权平均预测的一阶多智能体系统渐近实现平均一致性的充分和必要条件,最后仿真结果表明了理论研究结果的有效性,得到了采样周期的条件,并对满足和不满足条件的2种情况进行了仿真验证,为一阶多智能体系统采样控制的一致性问题提供了一种可行解。  相似文献   

7.
现阶段污水排水泵站及管网运行管理主要依靠GPS技术,运行管理过程中缺乏有效的安全管理手段,并且系统运行不够稳定,数据传输能力有限,管理能力有限.由此提出了一种新的基于物联网的排水泵站监控技术,该技术实现了视频监控、物联网传感器系统、通信系统等技术的综合应用,通过实际的应用,此技术可以广泛运用于提高泵站数据通讯能力、加强泵站安全管理、方便处理应急情况.  相似文献   

8.
基于多智能体的智能机器人分布式控制系统   总被引:7,自引:0,他引:7  
在研究多智能体技术基础上,提出了一种基于分布式黑板和多智能体系统的类人智能机器人控制系统体系结构,并根据系统要求规划出具有不同功能的多个智能体,系统地分析了该控制系统中各个智能体的功能特点以及它们之间的协作关系,以运动控制接口的编制为例,介绍了CORBA技术在实现该软件系统中的方法,轴孔装配作业实验结果表明,本文提出的体系结构是可行的,采用CORBA技术和多智能体技术能有效地实现预定的装配任务。  相似文献   

9.
结合递阶动态矩阵预测控制和多智能体技术 ,提出了一种多智能体多变量动态矩阵控制算法。在该算法中 ,控制对象的每个输出变量作为一个智能体 (Agent) ,使用CORBA将各个Agent集成为多智能体系统 ,并用π演算对多智能体系统的协调过程进行了描述。最后将该算法应用在制浆生产蒸煮过程 ,得到了较好的控制效果  相似文献   

10.
基于多智能体的机械臂嵌入式系统控制   总被引:2,自引:2,他引:0  
宁柯军  杨汝清 《上海交通大学学报》2005,39(12):2016-2019,2024
结合国际上基于多个智能体(Agent)的机械臂控制方法和先进的嵌入式系统技术,提出了一种基于嵌入式多Agent的机械臂控制方法.选用ARM7内核处理器及嵌入式实时操作系统μC/OS-Ⅱ完成了模型机械臂系统HN-8的控制实验.最后给出一套完整的基于多Agent的机械臂单片嵌入式系统控制实现方案.  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.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

13.
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   

14.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

15.
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   

16.
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   

17.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

18.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

19.
20.
The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to  相似文献   

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