分組數據協議 的英文怎麼說
中文拼音 [fēnzǔshǔjùxiéyì]
分組數據協議
英文
pdpacket data protocol- 分 : 分Ⅰ名詞1. (成分) component 2. (職責和權利的限度) what is within one's duty or rights Ⅱ同 「份」Ⅲ動詞[書面語] (料想) judge
- 組 : Ⅰ名詞1 (由不多的人員組成的單位) group 2 (姓氏) a surname Ⅱ動詞(組織) organize; form Ⅲ量詞(...
- 數 : 數副詞(屢次) frequently; repeatedly
- 據 : 據Ⅰ動詞1 (占據) occupy; seize 2 (憑借; 依靠) rely on; depend on Ⅱ介詞(按照; 依據) according...
- 協 : Ⅰ形容詞(共同) joint; common Ⅱ動詞(協助) assist; help; aid
- 議 : Ⅰ名詞(意見; 言論) opinion; view Ⅱ動詞(商議) discuss; exchange views on; talk over
- 數據 : data; record; information
-
The other is train communication network. based on the protocol of " iec 61375 - 1 ", published by iec in 1999, the data to be transmitted is classified into urgent periodic variables and deferrable random messages. in this paper the whole net is decomposed into two layers : train bus and vehicle bus
文中參考iec組織1999年公布的「 iec61375 - 1 」標準協議,將整個列車網路分為連接各個車廂主機的上層列車總線網和連接單個車廂內負責控制、檢測等子設備的下層車廂總線網,同時將傳輸的數據類型區分為實時的周期性過程數據和可延遲的偶發性消息數據。At the same time, it also illustrates the superiority of this kind of communication by introducing the profibus field bus. take the transformation of focke packaging machine as an example, the main content is as follows : 1st, to analyze the plc control system of s5 series, and determine the concrete functions that the new plc control system hopes to achieve as well as how to achieve the goal through studying the work program of the original one ; 2nd, to demonstrate the advantage of the field bus in the process of digital alternation by introducing the principle agreement of field bus profibus ; 3rd, to achieve each function of the original control system through using siemens ' s plc control system in the design of hardware and step 7 in the software as well as designing and compiling control system of focke packaging machine ; 4th, to use fm455 for controlling temperature not only can meet the system ’ s severe request for temperature and efficiently avoid many demerits of the temperature control instrument but also can bring convenience for operation and maintenance ; 5th, to use the intouch configuration software to compile monitor and control program can accomplish the goal for real - time surveillance and control of the production line, while setting some parameters can provide a powerful alarming function
以改造focke包裝機為例,主要內容如下: 1 、通過熟悉原有控制系統的工作流程,分析了原s5系列可編程邏輯控制器的控制系統,確定新的可編程邏輯控制器控制系統需要實現的具體功能以及其實現方法; 2 、在本系統數據交互中,通過介紹profibus現場總線原理協議,論述了現場總線在工業通訊中的優點; 3 、下位機硬體設計上使用西門子可編程邏輯控制器控制系統,軟體平臺採用西門子step7 ,設計和編制了focke包裝機控制軟體,實現了原有控制系統的各項功能; 4 、本系統對溫度要求嚴格,採用溫控儀表控制溫度不能滿足系統要求,而且溫控儀表操作和維護都不方便,因此採用fm455溫度控制模塊進行溫度控制,滿足了系統對溫度的要求,同時又有效地避免了溫控儀表在操作和維護上的缺陷; 5 、在監控系統上,使用intouch組態軟體設計了系統的監控界面,從而實現了對生產線的實時監控,並且可以通過界面設置系統的一些參數,同時提供了較強大的報警功能。It is composed of three mian protocols : call synchronization protocol, control frame transmission protocol based on arq mechanism and data transmisstion protocol based on slot precontract mechanism. one scan channel table is shared in the hfmanet. the nodes in the same dwell group work in the same scan channel, and the nodes in the different dwell group work in the different scan channel
該協議的網路拓撲結構採用分散式分群結構,協議不同於傳統的短波點到點及需要中心節點轉發的組網方式,而是初步實現了短波電臺之間多跳組網功能,其協議內容主要包括同步呼叫協議、基於arq的控制幀傳輸協議和基於虛電路及時隙預約方式的數據幀傳輸協議。Wap is continuously evolving and converging with existing internet technologies to match the current and emerging wireless information service requirements. as an important component of wap, wae is changing as well
Wap協議在不斷的進化和融合現有的internet技術以適應當前和將來無線數據信息服務的新要求, wae作為wap協議中的重要組成部分也發生著重大變化。After the briefly present the origin and features of internet protocol version 6 ( ipv6 ), the paper detailedly introduced the conception, characters, security technologies of vpn, and main tunnel protocols used to implement and deploy vpns. after analyzing and comparing these technologies of realizing vpns, we choosed ipsec. then, the paper analyzed in the ipsec structure, function, work mode, and its components such as authentication header ( ah ), encapsulating security payload ( esp ), internet key exchange ( ike ), encryption and authentication algorithms, security association, security policy, and how they cooperate with each other in order to secure ip packages
在簡要介紹ipv6協議的由來和優點之後,詳細闡述了虛擬專用網的概念、特點、安全技術及實現的關鍵隧道協議,通過對實現技術的分析比較,選用了安全性強大的ipsec隧道技術,接著深入研究了ipv6安全協議ipsec的體系結構、操作模式,詳細論述了ipsec協議簇的各個組成部分,如認證報頭ah協議、封裝安全載荷esp協議、密鑰管理ike協議、加密認證演算法、安全聯盟和安全策略等,以及這些組件之間如何協作,來共同實現對網路層ip數據包的安全保護。Firstly, the dissertation tells something about lonworks technology, the lontalk protocol, the peer - to - peer communicaton etc. secondly, it lucubrates s - 2000 control system based on lonworks, including the design method of the system, the key technology, the characteristic of the intelligent node, the i / o property, the structure of intelligent block, the neuron chip, the design of the data acquisition node and so on
本文首先闡述了lonworks技術及其特點,總線系統所採用的lontalk協議, peer - to - peer對等通訊,基於lonworks總線網路通訊協議系統等。然後對基於lonworks總線的s - 2000控制系統進行深入研究,重點研究系統的設計方法和關鍵技術,智能節點的特點,輸入輸出特性及智能模塊分析, neuron晶元的分析研究,以及數據採集節點的設計,數據採集控制軟體,組態軟體的設計原理等方面。This thesis elucidates and analyses the key techniques and rules of aolr in detail, and introduces its simulation modeling of the integrated system infrastructure and each function modules. through systematic simulation of aolr in the performance of packet delivery rate, average end - to - end delay, average route set - up delay, routing overhead, and etc, the key techniques and algorithms are testified and can provide reference for practical system design and application
通過對基於蟻群優化的負載均衡路由協議系統的模擬,從數據分組成功遞交率、平均端到端時延、平均路由建立時延、路由開銷等性能的模擬數據和曲線上,分別驗證了該系統中的幾項關鍵技術和演算法。Meanwhile, compared to exist load balancing routing protocols, our system shows better performance of packet delivery ratio, end - to - end delay and routing overhead
同時,較之現有的負載均衡路由協議,在數據分組的成功遞交率,平均端到端時延以及路由開銷等性能上也有顯著的提高。Thispaperhasstudiedonthedatalinkinterfacetechniqueoftacticalcontrolsystem. firstof all, functional requirement and the important role of data link interface in tactical controlsystem is introduced ; secondly, with object oriented method, the characteristic of uav taskcontrol process is analysed, and then uav task control information model is established, anddata link interface standard of tactical control system is designed based on this model, including message format and transmission mechanism ; thirdly, data link control module isdesigned based on embedded linux operating system and has realized conversion betweendata link standard interface and the private interface of uav data link ; and then, combinationreal time corba middleware and its event channel, data link control modular componenttechnology is studied, and realization scheme is put forward ; finally, demostration is madebased on prototype of tactical controlsystem, which verify the validaty of data link interfacestandardandembeddeddatalinkcontrolmodules
本文對戰術控制系統中的數據鏈介面技術進行研究:分析了數據鏈介面在戰術控制系統中的功能需求;採用面向對象的方法,分析無人機任務控制問題,建立了無人機任務控制信息模型,並基於該模型設計了數據鏈介面通信協議,包括報文格式和傳輸機制;基於嵌入式linux系統設計了數據鏈介面控制模塊,實現了數據鏈標準介面與無人機數據鏈私有介面之間的相互轉換;結合實時corba中間件及其事件通道,研究了數據鏈介面控制模塊組件技術,並給出了實現方案;通過戰術控制原理實驗系統的演示實驗,驗證了數據鏈介面通信協議和嵌入式數據鏈介面控制模塊的有效性。At the first part of the dissertation, the architecture and basic protocols of web services are analyzed and discussed. then the business data integration framework ( bdi framework ) is briefly introduced. the designing emphases of bdi system engine and management interface are particularly discussed in detail, especially on the topic of designing thinking, kernel constitution, various function adapters, web - based interface designing and tradition - based interface designing, which shows that the system has a prime adaptability and expansibility in information exchanging across various platforms and systems
本論文首先對webservices的體系架構和構成它的基礎協議進行了分析和研究;然後對論文重點要討論的商業數據集成系統bdiframework作了簡單的介紹;接著從bdiframework的引擎設計、管理界面設計兩個方面進行了詳細的闡述,著重介紹了系統的設計思想、系統內核的組成、各種功能適配器的設計以及基於web的瀏覽器界面和基於form的傳統界面的設計,說明了採用webservices技術的ibdiframework能實現跨網路、跨平臺集成數據,適應能力強,可擴展性高,為將來進一步開發打下了堅實的基礎;最後介紹了系統整體測試的情況和下一步的工作要點。The ability of keeping the ip packet ' s integrity, secrecy, authentication, data origination, anti - relay is discussed. the relationship of ipsec component authentication header ( ah ), encapsulating security payload ( esp ) and ike ( internet key exchange ) is also talked about. this discussion of ipsec makes the impression that ipsec make ip layer security enough
論述了ipsec在ip報文的完整性、機密性、數據來源認證和抗重播等方面的能力, ipsec的基本協議? ?認證報文頭( ah )和安全封裝載荷報頭( esp )與ipsec安全體系的其它組成部分如安全策略、加密和認證演算法、密鑰管理等如何合作,共同完成對ip報文的安全保護。First of all, we bring forward the basic project of tadil, which adapts to combined operations. it is suggested to use tdma ( the abbreviation of time division multiple access ) as the working pattern and utilize the concept of mobile ad hoc network to construct the data link network. aiming at the impact of time delay on data link and the characteristic of cooperative combat under the command of director aircraft, this thesis applies a kind of kalman filtering algorithm in polar coordinates to compensate the error of time delay, and then does the transformation of target motion parameters to obtain the current information of target
本文結合空軍裝備部某「十五」預研課題,圍繞著戰術數據鏈、多機協同多目標攻擊、超機動攻擊、空對地攻擊這四個方面展開了一系列的研究工作:本文首先給出了適應三軍聯合作戰的戰術數據鏈系統的基本方案,建議採用時分多址的工作模式,並利用移動自組織網路的概念構建數據鏈網路,同時針對數據鏈傳輸信息的時間延遲特性和指揮機指揮下的多機協同作戰特點,應用一種極坐標系下的卡爾曼濾波演算法對該傳輸延遲誤差進行補償,並在此基礎上進行目標運動參數的轉換,以獲得目標相對于某無人機的當前運動信息,且利用模擬驗證了方法的有效性。Second, it do research on the theory of quality of service, such as intserv and diffserv module, qos protocols, qos array techniques and qos architecture. third, based on the current techniques as j2ee, wfe and xml, an architecture of a pbnm system using ejb and wfe is presented. forth, it is discussed for some key components in pbnm domain, such as qos information module, policy based metwork management framework and the relations among components fifth, it designed the relations and communication interface between pbnms and other oss modules, and elaborated a strategy of building a distributed object information model and discussed its specific implementation, and implement the policy hierarchy using domain
本文的主要研究工作和成果如下:分析了傳統的網路管理技術和發展歷程,對網路管理的國際標準cmip 、 tmn 、 snmp和cops等及網路管理的功能進行了討論;對服務質量( qualityofservice , qos )中的主要理論,如intserv和diffserv服務模型、 qos協議、 qos隊列技術、 qos體系結構進行了探討;基於當今的流行技術j2ee 、 wfe 、 xml ,提出並設計了以ejb wfe框架構築的策略管理體系結構;討論了基於策略的網路管理( pbnm )中的若干關鍵技術問題,如策略信息模型、策略網路的系統構架及組件間的交互關系;設計了基於策略的網路管理系統( policybasednetworkmanagementsystem , pbnms )與運營支撐系統( operationsupportsystem , oss )各模塊間的關系和通信介面,運用分佈對象技術建立網管信息模型,運用域進行策略的等級管理;討論了策略服務器( pdp )和策略實施點( pep )的工作流程,採用關系數據庫進行策略的存儲,設計並實現了策略數據庫、策略服務器( pdp ) 。The medium access control ( mac ) layer protocol of the airlink interface between the mobile data base station ( mdbs ) and mobile end systems ( m - ess ) in cellular digital packet data ( cdpd ) is studied firstly. the access method of slotted non - persistent digital sense multiple access with collision detection ( dsma / cd ) is described mainly
本文首先研究了蜂窩數字分組數據( cdpd )空中介面中的介質接入控制層( mac )協議,詳細論述了基於時隙的非堅持的、帶沖突檢測的數字載波偵聽多址接入協議( dsma cd ) 。A number of comparisons and analysis on different reliable multicast data transmission protocols have been carried out. considering the one - way characteristic of the chinese catv network, the alc is regarded as the best suitable multicast data transmission protocol for china
在可靠組播數據傳送協議上,本文研究了許多可靠組播協議,通過比較和分析,綜合我國有線電視網路單向性的特點,本文認為異步分層編碼協議( alc )是最適合的可靠組播數據傳送協議了。In the system of ( e ) gprs, there is not only the transferring protocol of packeted data, but also try to offer qos
在( e ) gprs協議體系結構中,不僅定義了高層的分組數據傳輸協議,還提供了對數據流的qos保證。1 ) realization of software packet embedded in m - es and md - is respectively to accomplish main function of mdlp, including assignment of tei ( temporary equipment identifier ), establishment of multiple frame operation, framing, flow control and error - free transmission of packets, is detailed. 2 ) a test model is established to evaluate the robustness and stability of mdlp and verify the validity of software packets. 3 ) according to the design of radio modem construction used in m - es, the modules of interface between data terminal equipment and radio modem are achieved to enable transmission of short message and continuous pseudo - random bit stream via rs232 uart
本文首先概述了蜂窩數字分組數據網的結構和空中協議,詳細分析了移動數據鏈路協議,並在此基礎上,重點敘述了以下方面的工作: 1 )設計並完成了分別應用於m - es和md - is端無線控制器的兩套程序實現數據鏈路層的主要功能,包括分配臨時設備號、建立鏈路、組幀和面向連接的服務保證分組正確無誤地傳輸,並進行適當的流控; 2 )建立測試模型測試移動數據鏈路協議的可靠性和穩定性,證明了程序包的效用; 3 )根據cdpd系統無線數據機的軟硬體總體設計方案,完成了介面模塊,實現了rs232異步串口通信,使用戶可以根據需要發送短消息或連續的偽隨機比特流; 4 )在tms320c54x的軟體、硬體模擬平臺上,建立了cdpd試驗模型,實現了cdpd系統的mdlp基本功能。Being an layer 2 protocol used for media access control, resilient packet ring ( rpr ) does not only inherit the economy advantage of ethernet, administration and reliability advantages of sdh, but also introduces its unique characteristics, such as fairness access, topology discovery, guaranteed quality of service, which make it possible to optimize the transport of data packet the application of rpr technology in the sdh - based mstp can make full use of both the advantages of sdh and rpr in tdm and data service
Rpr技術是一種二層mac協議,它繼承了以太網帶寬提供的成本優勢和sdh的可管理性、網路的生存性等方面的優勢,還增加了業務的公平接入能力、拓撲發現能力、 qos保證能力等特色,優化了ip分組數據業務的傳送方式。 rpr技術和sdh技術相結合,使sdh設備在能有效地傳送tdm業務的同時,對于基於ip的分組數據的傳送也得到了優化,使之成為新一代的多業務傳輸平臺。One windows nt server and one set of datum processors set up the real time achievement database server, the server adopts windows nt 4. 0 as operating system, ms sql 7. 0 as database management system, through tcp / ip achieving visit the server. visual basic 6. 0 was adopted to develop the terminal software, the system altogether includes affairs reminding subsystem, sportsmen dividing into groups subsystem, referee giving a mark subsystem, achievement calculate subsystem and achievement issue subsystem, 6 subsystems. at the same time, the systematic security divide into server operating systems security, database management system security, client terminal software security, and network security as well
該系統採用兩層的c s結構: windowsnt服務器、一臺數據處理機建立了處理實時成績信息的數據庫服務器,服務器windowsntserver4 . 0作為操作系統, mssqlserver7 . 0作為數據庫管理系統,並通過tcp ip協議實現對server的訪問;採用visualbasic6 . 0程序設計語言作為開發工具研製了系統終端軟體,共包括事務提醒子系統、運動員分組管理子系統、裁判員評分子系統、成績計運算元系統、成績發布子系統、成績瀏覽子系統等6個子系統;同時將系統的安全機制分為服務器操作系統的安全機制、數據庫管理系統的安全機制、 client端應用程序的安全機制和網路的安全機制;由於c s系統中影響系統性能的因素主要包括client 、網路、 server 、數據庫和應用系統;在「花樣輪滑評分系統」中充分考慮了這些因素,從數據分佈、數據庫系統配置等方面來提高系統的性能;並從系統運行、數據庫維護兩個方面考慮系統的維護問題。Though the analysis about the powerpc bus, there are four parts in biu : instruction pretreatment part, address bus treatment part, data bus treatment part and data pos - treatment part. the second part focuses on the memory consistency
通過對powerpc結構的總線協議的分析,總線介面部分主要由指令預處理部分、地址總線處理部分、數據總線處理部分和數據后處理部分組成,完成微處理器和外部總線的數據交互。分享友人