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控制网络协议
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  control network protocols
     First, it utilizes diagrams to compare and analyze the static QoS of three CSMA control network protocols, which are Ethernet, CAN and LON, proposing that static QoS analysis can be used to choose the type of control network and it is valuable to early stage of CNS design.
     首先,利用图表对比法分析了Ethernet、CAN和LON三种CSMA类型控制网络协议的静态服务性能; 指出静态服务性能分析可用于指导网络选型,它对于控制网络系统的初期设计具有重要价值。
短句来源
  control network protocol
     This thesis conducted researches on the control network protocol system in consequence of this development trend, by referring and using the basement of hardware and software and the forthcoming protocols of Internet, and by constructing control network system with hardware and software, applied the design principle and project to resolve the problem of achieving control network.
     本文正是针对这一发展趋势,对控制网络协议体系进行了研究,参考和利用Internet的现有软硬件基础及其协议,通过构建软件及硬件协议体系组建控制网络系统,提出了实现控制网络的远程控制的设计原则和解决方案。
短句来源
     And then, it introduced this research, the control network protocol of XMAP, constructed the model of achieving control network based on this research.
     然后概括介绍了本研究—XMAP控制网络协议,构建了基于本研究的控制网络实现模型。
短句来源
     And then, it made out the integration of the control network protocol of XMAP, made out the layers, function modules and the analysis and achievement of key technology of the protocol system, and expounded the designs and achievements of every layer of XMAP, at the same time, it applied some method to resolve the problems which may be met when the system is achieved.
     随后规划了XMAP控制网络协议体系整体组成,划分了协议体系的层次和功能模块以及关键技术的分析和实现,并详细的阐述了XMAP控制网络协议的各个层次的具体设计与实现,同时提出了一些方案来解决系统实现会遇到的问题。
短句来源
     Industrial automation is changing from local isolated automation to entire network automation with development of communication technology as well as digitalization of measurement and control devices. Diversification of equipment interface standard and control network protocol, which has developed from traditional serial communication and DCS to fieldbus and industrial Ethernet, makes multibus protocol existing in industrial field widely.
     测控仪表的数字化和通信技术的发展 ,使孤岛式的局域自动化正向网络式全局自动化转变 ,但现场设备接口标准和控制网络协议的多样化 ,从最初的通用串行通讯发展到今天的现场总线和工业以太网 ,导致了多总线协议在工业现场普遍并存 .
短句来源
  “控制网络协议”译为未确定词的双语例句
     The software end adopted the driver development pattern of VC + DDK + DriverWorks and carried out the establishment of the monitor control system software which is based on the protocol of the control network.
     软件方面,在Windows环境中,采用VC + DDK + DriverWorks的驱动开发模式,完成了基于底层控制网络协议的监控系统软件编制。
短句来源
     MANUFUCTURING AUTOMATION PROTOCOL (MAP) AND ITS IMPLEMENTION
     工业控制网络协议MAP技术的研究与实现
短句来源
     MANUFACTURING AUTOMATION PROTOCOL (MAP) AND ITS IMPLEMENTION
     工业控制网络协议MAP技术的研究与实现
短句来源
     It is well known that the Data Communication Protocol for Building Automation Control network (BACnet), the international standard communication protocol, directs the further development of intelligent home network.
     BACnet 楼宇控制网络协议是当前智能建筑发展的主流技术,已经成为楼宇自控的国际标准,它给智能家居的发展指明了方向。
短句来源
     BACnet, the international standard communication protocol in building automation control networks, leads the developing direction of intelligent home. It is practical to introduce the BACnet protocol into the security system in itelligent home, with optimistic market forecast.
     BACnet 楼宇控制网络协议作为当前智能建筑发展的主流技术,将其引入智能家居安防系统中,具有广泛的现实意义和发展前景。
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  相似匹配句对
     In-vehicle Control Network & Protocol Comparison
     车载控制网络及其协议比较
短句来源
     A MAC Protocol of Data for HFC Network
     HFC接入网络MAC控制协议
短句来源
     Network Protocol Based on Access Control Policy
     基于访问控制策略的网络协议
短句来源
     ● encapsulation protocol.
     封装网络协议
短句来源
     Adaptive Control Protocols in Wireless Ad Hoc Networks
     分布式无线网络中的自适应控制协议
短句来源
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  control network protocol
Understand various control network protocol >amp; Architecture in building 3.
      


with internet times coming,people require not only information to be tansmited,but also the building device to be controlled in internet. BACnet can adapt to this need.The protocol architecture of BACnet and the application in the world are described in this paper.

随着互联时代的到来 ,人们不再仅仅满足于Internet的资讯传递。更希望楼宇设备能与这个庞大的网络神经连接起来 ,从而达到家居生活的真正智能化。BACnet协议的产生正好迎合了这种时代的要求。本文结合OSI网络互联模型从BACnet的体系结构角度 ,详细阐述了这种新的楼宇控制网络协议及其应用

Industrial automation is changing from local isolated automation to entire network automation with development of communication technology as well as digitalization of measurement and control devices. Diversification of equipment interface standard and control network protocol, which has developed from traditional serial communication and DCS to fieldbus and industrial Ethernet, makes multibus protocol existing in industrial field widely. Therefore, the multibus mixed distributed network control system is researched...

Industrial automation is changing from local isolated automation to entire network automation with development of communication technology as well as digitalization of measurement and control devices. Diversification of equipment interface standard and control network protocol, which has developed from traditional serial communication and DCS to fieldbus and industrial Ethernet, makes multibus protocol existing in industrial field widely. Therefore, the multibus mixed distributed network control system is researched in this paper, and the key technologies of its application are discussed. The paper focus on reliable and real time data communication of factory floor network and information integration of the whole system. At the same time, the information integration between this network and new developing measurement and control equipments with Ethernet interface is presented. The problem that is discussed in this paper is universal during improving the level of industrial automation in enterprises, and has great practical background.

测控仪表的数字化和通信技术的发展 ,使孤岛式的局域自动化正向网络式全局自动化转变 ,但现场设备接口标准和控制网络协议的多样化 ,从最初的通用串行通讯发展到今天的现场总线和工业以太网 ,导致了多总线协议在工业现场普遍并存 .鉴于此 ,本文研究了这种多总线混合分布式网络控制系统 ,对其实现的关键技术进行了探讨 .重点研究了底层可靠实时数据通讯和整个系统的信息集成问题 .同时 ,对正在发展的具有 Ethernet接口的新型测控设备与这种网络之间的集成问题进行了分析 .本文探讨的问题 ,在企业提高自动化水平过程中具有普遍性 ,有重大的实用背景

The problem of network server overload has attracted a lot of attention. Overload can cause performance of network server drop sharply and clients have to wait for a long time to get responses. Many solutions have been proposed for solving this problem. Most of them are using thread mechanism which combine polling and interrupt processing together to solve the problem. This paper focuses on improving kernel event process mechanism of current operating system. A self adaptive control method is proposed for network...

The problem of network server overload has attracted a lot of attention. Overload can cause performance of network server drop sharply and clients have to wait for a long time to get responses. Many solutions have been proposed for solving this problem. Most of them are using thread mechanism which combine polling and interrupt processing together to solve the problem. This paper focuses on improving kernel event process mechanism of current operating system. A self adaptive control method is proposed for network protocol processing which added feedback control logic into current event driven mechanism. Through the control of hardware interrupt processing and software interrupt processing, the problem of receive livelock is prevented, also problems of starvation of network protocol processing and user level processing are prevented. It is showed that the performance of UDP processing is improved by about 100% over unmodified kernel under heavy workload. Also the performance of TCP processing is improved greatly. Comparing with other methods, some of those methods still can not overcome the problem of receive livelock, others which used polling mechanism can cause problems of delay and extra overhead. This makes the method proposed in this paper have better performance than those methods which use polling mechanism.

网络服务器过载问题已经成为日益关注的问题 ,过载会引起服务器系统性能急剧下降 ,客户请求长时间得不到响应 .国内外已经提出很多有关网络服务器过载的解决方案 ,其中 ,比较有效的方案是引入线程机制 ,通过中断和查询相结合来解决这个问题 .文章从改进传统的操作系统内核事件处理机制出发 ,在传统的事件处理机制中引入了反馈控制 ,提出了基于自适应的网络协议控制方法 ,该方法通过控制网络协议处理中的硬件中断和软件中断处理 ,不仅避免了系统接收活锁问题 ,同时 ,也避免了由于过量中断所造成的网络协议处理和应用软件“饥饿”的问题 .测试表明在过载情况下 ,UDP性能提高了 10 0 % ,TCP性能也得到了明显的改善 .与其它方法相比 ,这些方法中有些无法克服接收活锁的问题 ,另外一些方法由于采用了查询机制 ,产生了延迟和额外的开销 ,这就使得文章提出的方法在性能上比采用查询机制的方法更好 .

 
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