查询词典 communication protocol

Primarily, the thesis assays the condition of network framework, the network was divided into three levels in terms of network management in order to establish the distributed method ,and still pointing out the intention and denotation of studying the Topology Discovery.Next, the thesis analyzes SNMP protocol minutely, including its development, principle, and the Network Management system that established on the SNMP protocol. Have analysed MIB in detail and the application way of MIB in network management .The thesis also assays the ICMP protocol, describing its working principle and the format of datagram minutely , and describing two important tools of ICMP- Ping and TraceRoute in detail. On the base of upper analysis, the thesis expounds a kind of distributed Topology Discovery project, and book it in one autonomy system. Topology Discovery was divided into two levels in terms of network management, and analyses the way of linking up between the two level. The thesis minutely assays Router-Level Topology Discovery technology basing on SNMP and Subnet-Level Topology Discovery technology basing on ARP and ICMP. According to these analyses, the thesis explores the specific methodology and the technology of XML data object which using the WinSNMP API to achieve topology discovering system on the development platform of Visual C++, and also analyses the technology of topology analysis and topology graph minutely. Moreover, the thesis assays the technology of basic firewall and Topology Discovery response strategy. Finally, the thesis analyses the underlying blind problem of the topology finding, and also analyses the reason that the blind problem produced and the way that reduced. The distributed algorithm that this paper puts forward has a certain directive significance in wireless network or other fields.

本文首先分析了网络结构状况，将网络从网络管理的角度划分为三个层次，为分布式的方法奠定了基础，同时还指出拓扑发现研究的目的及意义；接着本文分析了SNMP协议，详细分析了SNMP协议的发展状况，协议的工作原理，以及由SNMP协议基础上建立的SNMP网络管理体系，详细分析了MIB，以及MIB在网络管理上的应用方式；本文又分析了ICMP协议，详细描述了ICMP的工作原理和数据报格式，并详细描述了ICMP的两个重要工具-Ping 和TraceRoute；然后本文在结合上述分析的基础上，提出了一种分布式的拓扑发现方案，将拓扑发现拟订在一个自治系统内，将拓扑发现从网络管理角度划分为路由器级和子网级两个层次，分析了两个层次之间的衔接方式，同时从拓扑地域的角度将拓扑发现过程分布化，分析了分布式算法的具体方法和分布式结点之间的数据通讯方法，本文详细分析了基于SNMP的路由器级拓扑发现技术和基于ARP和ICMP的子网级拓扑发现技术；根据这些分析，本文利用XML数据对象作为分布式算法中的数据对象，分析了XML的技术，本文使用Visual C++开发平台实现网络拓扑发现系统，详细分析了使用WinSNMP API实现基于SNMP的路由器级拓扑发现和基于ARP的子网级拓扑发现，分析了使用Winsock编程实现基于ICMP的子网级拓扑发现，本文还对拓扑分析和拓扑图的绘制技术作了较细致的分析；本文最后还分析了基本防火墙技术，分析了几种类型的防火墙对拓扑发现带来的影响，以及在拓扑发现时的应对策略，本文还分析了拓扑发现中可能产生的盲点问题，分析了盲点产生的原因以及拓扑发现中减少盲点的方法。

Therefore, this thesis designs a more secure RFID protocol to fix these security flaws. In 2007, Fouladgar and Afifi also proposed EDTOP protocol which is based on AES and keeps higher performance on the operations of tag ownership transform. However, it also fails to achieve the forward security. Therefore, this thesis further proposes an improved protocol which can achieve the forward security.

因此吾人在本论文里，设计一个更安全的RFID协定，来改善这一些问题。2007年，Fouladgar和Afifi又提出了一个植基於AES运算和具高效率的标签所有权转换的协定EDTOP，但是吾人发现EDTOP协定并不具有向前安全性的特性，所以在本文中提出了一个植基於AES且具有向前安全性的RFID标签认证协定。

In this paper, in order to solve the load balance problem of Ad hoc network, works on different MAC protocol performance analyse, theoretical modeling, multi-path routing load balance protocol and cocurrent multipath transfer protocol are represented.

为了满足自组织网络对于负载均衡传输的需求，本文重点对解决Ad hoc网络负载均衡相关问题在MAC层协议性能分析，理论建模以及适用于负载均衡的新型路由协议和新型传输协议等几个方面展开了研究。

The invention provides a dual redundant CAN bus controller, which is arranged on a crewel CAN bus, characterized in that: two CAN bus transceiving modules, two initializing modules are respectively corresponding to the CAN bus controller module A and CAN bus controller module B; the two CAN bus controller modules are respectively connected to the two CAN bus via a driver shifting control unit; the initializing module is connected to the bus control initializing register for initializing the e CAN bus controller modules; a protocol processing module is connected to the FIFO buffer; the FIFO buffer is connected to the node processor via the logical interface; a intermitting process unit sends the corresponding intermitting control signal to the CAN bus transceiving modules according to the CAN bus controller modules; one path of the CAN bus controller module is directly connected to the protocol processing module; another path is connected to the protocol processing module via the bus receiving buffer.

本发明提供了一种双冗余CAN总线控制器，设置于双线CAN总线上，其特征在于：两个CAN总线收发模块、两个初始化模块分别与CAN总线控制器模块A和CAN总线控制器模块B相对应；两个CAN总线控制器模块通过驱动器切换控制单元分别与两条CAN总线相连；初始化模块与总线控制器初始化寄存器相连，对所对应的CAN总线控制器模块进行初始化；协议处理模块与FIFO缓存器相连；FIFO缓存器通过逻辑接口与节点处理器连接；中断处理单元根据CAN总线控制器模块的控制命令对CAN总线收发模块发出相应的中断控制信号；CAN总线收发模块一路与协议处理模块直接相连，另一路通过总线接收缓存器与协议处理模块相连。

Above transaction protocol satisfies accountability Above transaction protocol dissatisfies fairness Based on the result, the author puts forward a complete transaction protocol that satisfies accountability and fairness.

通过对模型的仿真分析，证明了：③的支付协议满足可追究性③的支付协议不满足公平性根据结果，作者提出了同时满足可追究性和公平性的完善的支付协议。

The ability to handle a custom URL protocol scheme using a pluggable protocol handler allows developers to implement new or custom protocol schemes for Internet Explorer 4.0 and for applications that use URL monikers.

允许开发者有能力通过使用URL monikers为IE4.0以上版本和应用程序实现新的或者自定义的协议方案处理自定义URL协议方案的可插协议处理方案。

The quorum cluster including only three quorums is a small quorum system; every two quorum clusters intersected only one quorum. Circle quorum system used self-adaptive fault-tolerant protocol, which decided to use voting protocol or mutual exclusion protocol based on the failure probability and number of points of one quorum.

Circle Quorum系统采用了自适应容错协议，根据quorum内部节点的非等失效概率和失效个数决定采用选举协议还是互斥协议。quorum中所有节点组成选举quorum，其中，具有高可靠性的若干节点组成高性能响应子quorum。

Lastly, the communication mode and the communication protocol of the communication system in DAS are discussed.

最后，论文讨论了配电网通信系统的通信方式和通信规约的选择，提出了一种基于Internet的通信方式。

This paper focuses on the design and implementation of data transportation and communication in CGSE Control System, including communication system architecture design, module design and implementation of communication system, data exchange design and protocol encasement, data demonstration and backup system, driver model design and implementation.

本文主要研究CGSE(AMS超低温地面支持系统)控制系统中CAN通信的分析与设计工作，包括：通信系统组合架构设计、通信系统具体模块设计和实现、数据传输和封装协议、数据操作和备份系统、底层驱动程序设计和实现等。

To overcome the above problems,authors present a Hierarchical algorithm based on Communication range Restraining Clustering.It first studies single-level protocol based on Communication range Restraining Clustering and then father node is selected in every layer in terms of communication range restraining to reduce the number of data package transmission.

针对这种问题，提出了一种基于通信范围约束的多层簇类算法，基于单层次的数据融合结构，给出了多层次的数据融合，然后对每一层簇头通过通信范围选择父节点，减少数据包传输次数。

They have quite a lot of work to do.

他们有许多工作要做。

Let us give you a more elaborate example of this process.

让我们给你这个过程的更多的详细例子。