查询词典 communication protocol

But many problems still unresolved due to the disaccord of the electrical communication protocols which relevant to the types of ammeters, communication channels, and bring the disadvantage to the electrical charge systems integration, maintenance and upgrading. For solving the interoperation of power communication protocols, DLMS UA proposed a new communication protocol called DLMS /COSEM which world widely used and accepted as international standard by IEC and TC13 in recently years. The research in this area has just begun in China.

但是，这些系统由于选用的电能表型号不同、通信信道类型多种多样，而造成电能表通信协议不统一，给集中抄表带来了系统集成、维护和通信信道维护及升级困难等诸多问题，为了解决电能表通信协议的互操作性问题，DLMS用户协会提出了一种新的通信协议—DLMS／COSEM，目前已由IEC、TC13采纳作为国际标准，近年来在全世界范围得到了应用，我国在这方面的研究刚刚起步。

In view of situation that existing controller and networking communication of low-voltage breaker adopt user-defined protocol, which has shortcomings of poor reliability and exchangeability in communication, the paper introduced a design scheme of a new type of intelligent controller for low-voltage breaker based on DeviceNet protocol and introduced its design of hardware and software in details.

针对现有低压断路器控制器与控制网络通信因采用自定义协议而存在通信可靠性低和互换性差的缺点，介绍了一种基于DeviceNet协议的新型低压断路器智能控制器的设计方案，详细介绍了控制器软、硬件设计。

To meet the demands for expeditiousness, reliability and flexibility of communication in the monitoring and protecting unit, CAN Bus, one of the most widely used FCS, is applied. The CAN communication protocol of substation's bay unit based on CAN Bus is instituted in detail. The hardware circuit and software flowcharts to realize the protocol are also given.

为了满足测控保护单元对通讯实时性、可靠性、灵活性的要求，使用了国际上应用最广泛的现场总线之一CAN总线，详细制定了基于CAN总线的变电站间隔层CAN通讯规约，并给出了实现该规约的硬件电路及软件流程图。

In the research of secure communication, the thesis analyzes some shortcomings of Diffie - Hellman"s crypt key exchanging protocol, presenting a new exchanging method based on the "station to station protocol and cookie mechanism, realizing the software of crypt key exchanging and secure communication of IP datagram on router.

在对安全通信的研究中，本文分析了Diffie-Hellman密钥交换协议中易受攻击的地方，提出了基于端对端协议及cookie机制的密钥交换新方法，并在路由器上实现了密钥交换和IP报文的安全通信。

The interceder will take part in the protocol only when there is something wrong with the communication or somebody cheating in the protocol,and he dose not increase the load of communication.

协议仲裁者只在发生通信故障或用户之间产生矛盾时才参与，不致造成通信负载过大。

First, we analyse USB communication methods, and there are three important methods; Second, we discuss the whole software structure and communication protocols and design a basic protocol model based on embedded environment. Then, we explain the implementation of a file transport system based on this model. Through the comprehensive utilization of StrongARM UDC and Linux USB modules, we complete a portable protocol stack. Moreover, the function of the system is tested under the Windows and Linux OS.This thesis provides us with a full description on the realization of the USB mass storage system.

首先是USB系统通讯方法分析，将其归纳为三种主要的形式；然后论述了系统采用的的整体软件架构和通信协议体系，提出了基于嵌入式系统平台的协议栈的基本模型和具体内核实现机制，并阐述了基于此模型的文件传输系统的实现方法；最后，本课题通过综合运用StrongARM处理器上的USB设备控制器和Linux核心中提供的USB设备核心模块与字符设备模块，实现了一套可移植的USB海量存储设备类协议栈，并给出了系统在Widnows和Linux操作系统环境下的测试结果。

In the situation, this paper brought up the risk analysis and evaluation method on the basis of intelligent control and network communication technology for Network Communication System. The risk analysis and evaluation of Network Communication System firstly discussed the character of network communication and its risk. At the following we estimate a risk evaluation model according the distribution of the systems risk by time and space. Otherwise, we combined Fuzzy Comprehensive Evaluation with Analytic Hierarchy Process, and set up the multi-grade fuzzy comprehensive evaluation model for Network Communication System.

该方案主要通过讨论网络通信系统及其风险的特性，根据风险的时间和空间分布规律，以"风险"为整个网络通信系统安全模型的评估和分析对象，确立网络通信系统风险分布的量化评估模型，同时，就不同区域和不同时段的风险通过引入层次分析的一般方法来确定它们的权重系数，最后，通过模糊综合评判法则对系统中模糊不确定性因素进行数学化的抽象，建立一个反映其本质特征和动态过程的理想化的数学评估模型。

Circuit principles, analogue circuit, digit circuit which laid me a solid foundation of circuit for the study of communication; the study of electronic circuit of communication provided me with the working principles of analog communication system; the study on communication theory made me grasp the working methods of digital communication; the study on electromagnetic field, electromagnetic wave and aerial let me know that how signals travel through signal paths and how to apply signal and linear system, random signal and system to the research of noise's impact on signals

学习了电路原理、模拟电路、数字电路打下了学习通信的电路基础；学习了通信电子线路掌握了模拟通信系统的工作原理；学习了通信原理掌握了数字通信的工作方法；学习了电磁场与电磁波、微波与天线了解了信号如何在信道中传输；学习了信号与线性系统和随机信号与系统来研究噪声对信号的影响。

As a private mobile communication system, The digital trunkingmobile communication system was boomed in 1990's, and before this, the appliedprivate mobile communication systems in market are almost the analog systemwith analog voice and digital signalling. And there are no data referring to thesystem design and parameters chosen. It includes the wireless channel accessalgorithm of the mobile terminals, single base station capacity in large regional networks, link designing schemes between the switching control center and basestation as well as the study of the service quality for the multiple traffic. Theseindispensable parameters in design a digital trunking communication system arestudied in this dissertation and some instructive achievements can be got. To provethe correction of the theoretical study, the result was tested with the popularsystem of pan-European digital trunking communication system.

数字集群移动通信系统是九十年代中、后期兴起的专用移动通信系统的一种新体制，在此之前国际、国内市场使用的都是数字信令、模拟话音集群移动通信系统其涉及领域是模拟体制，对数字集群的系统设计的有关参数、方法等的选用及其性能表现并无成熟的文献可供参考，如移动终端的无线信道接入算法、大区组网单基站系统的容量、基站和交换控制中心间的链路设计和多业务种类的服务质量等都是数字集群基站子系统进行设计和开发必须解决的关键技术。

Technique development, basic facilities improvement and cost decline make "globalization" communication possible. 4. Globalization of communication technique aggravates the "unfairness" of international communication and leads to its different layers, classes and unbalanced distribution. 5. The end of "cold war" deconstructs the opposite between the East and the West, but not ends the difference between the South and the North and the "civilization conflict". 6. The population redistribution makes the traditional nations and countries in the relevant areas unstable and influences the original national cultural identity. 7."Globalization" communication deepens the alertness of national elite intellectuals, which makes them strengthen their sense of mission to keep and guard the spiritual home of national traditional culture (including traditional belief, value, cultural pattern and so on) that will be possibly subverted and maliciously remade. 8. The combination of "direction" and "strategy", or the speciousness makes big trans-national media corporations sweep away all obstacles and occupy the markets in the developing countries, in which have appeared the phenomenon of "narrations of traditional cultures tending to similarities". 9."Global village": myth or reality? 10. The difference of culture and ideology often causes the different understanding and value judgement to the contents of trans-national communication.

第一部分将中国国家电视文化安全问题放到"全球化"的大背景中加以考量，分别从以下18个维度展开论述：1、全球化语境与我们的抉择；2、与"全球化"同样历史悠久的"国际传播"；3、技术的进步和相关基础设施的广泛建立并不断完善以及使用成本的持续下降，使得"全球化"传播成了可能；4、传播技术的全球化，加剧了国际传播的"不平等"，导致了国际传播的层级性和不均衡分布；5、"冷战"的终结解构了东西对立，但却并未终结南北差异和"文明的冲突"；6、人口的重新分布使得相关区域的传统意义上的民族国家面临潜在的不稳定，并有可能影响到原来各个国家已经定型的民族文化认同；7、"全球化"传播加深了民族国家精英知识分子的戒心，"守望民族传统文化的精神家园"的使命感使得他们开始关注核心的"传统文化"（具体包括传统的信仰、价值观、文化模式等）的有可能被颠覆或被恶意改造；8、"方向"与"策略"的有机结合，使得大型跨国传媒公司所向披靡，在发展中国家屡屡得手，很多国家出现了"祖母的同质化"现象；9、"地球村"：神话还是现实？

Foods high in this vitamin include oily fish such as salmon, tuna and, and fish liver oils.

维生素D含量高的食物包括诸如大麻哈鱼、金枪鱼和鲭鱼之类的油鱼以及鱼肝油。

We need you to cosign our public letter demanding that press intimidation cease immediately, and that all charges be dropped.

我们需要您cosign我们的公共信，要求记者立即停止恐吓，并要求所有收费下降。