Because of the autonomy, mobility and communicativeness of agent, the transaction is very efficient, especially for large-scale distributed database systems.

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In order to improve the modernization and convenience of communication network,the given design and key applied technologies of management system based on GIS,which is about long-distance communication trunk transfer network,take advantage of vector maps and dynamic data exchange of GIS.

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Firstly, the characteristics of CAN bus are analyzed and it's reliability、expeditiousness and flexibility are tested. A communication network of substation automation system constructed on CAN bus is presented and confirmed. Secondly, the dissertation discusses the main structure of substation automation system, as well as the content and request of substation digital communication. According to this, it gives the project of constructing the substation CAN communication network and the communication protocol. And according to different requests of power system, it makes research and tests of the calculation of the communication parameters in the network. Communication manager is the key to communication network based on CAN bus.

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In order to investigate the variation of controllability and observability affected by network scheduling,the model of scheduling for Networked Control System is established,which has communication constraint on its input and output channel.Utilizing communication sequence to express the scheduling of channel,the model can be transformed into discrete-time switch system.Under static scheduling,using the theory of recursive invariant subspace and its character,a necessary and sufficient condition of NC...

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The network based on the ARM and the TCP/IP stack of uClinux provides the on-line GIS mo rnito ring system w ith stable communications and interchangeability. The ARM kernel in the embedded system p rovides a stable on2line monito ring system w ith real2time p rocessing capability and extendability.

應(yīng)用測試結(jié)果表明：基于 ARM 和 uClinux 中TCPIP 協(xié)議棧的以太網(wǎng)通信一级毛片免费看高清视频在线，可以實現(xiàn) GIS 在線監(jiān)測系統(tǒng)的互操作性日日夜夜,黄色视频，并保證在通信功能上的長期穩(wěn)定性；以 ARM 為核心的嵌入式系統(tǒng)硬件插操水视频，可以保證監(jiān)測裝置的穩(wěn)定性狼友视频-首页、實時性和可擴充性。

The eCAN module in the signal processor TMS2812 is introduced. Its correspondence partial hardware and the software design method with the CAN bus between correspondence is given. The OPC server is used for host, slave computer I/O driver, which has enhanced the ability of the scene intelligence measuring appliance computation complexity and system real-time communication.

詳細介紹TMS2812信號處理器的eCAN模塊以及其與CAN總線之間的通信www.xx日本黄色视频.com，并給出其通信部分硬件和軟件的設(shè)計方法国产淑女色视频，采用OPC服務(wù)器為上、下位機的I/O驅(qū)動程序操逼视频大全网站，滿足了現(xiàn)場智能儀表的計算復(fù)雜性和系統(tǒng)通信的時實性能看av网站。

At the same time, on the base of analysis of the present situation, the development trend and the leading edge technology, the necessity and feasibility about the exploitation of the full hydraulic bulldozer"s sate monitoring and fault diagnosis system is given; According to the structure, working feature and working environment, it works out system schema and system composition; The system is divided into display module, communication module and fault diagnosis module by means of block design, the implementation method and key parameter are also given; In light of the features of the full hydraulic bulldozer, the state monitoring and fault diagnosis platform composed of controller RC6-9 and display DI2/10 is designed based on CAN-Bus and the hardware design is completed; It lists the measured values and state of monitored parameters which should be real-time displayed in monitoring module as well as the data which will be transmitted; Furthermore, On the base of the study of, it gives 34 kinds of constant faults" diagnosis methods; Using BODAS software and DPS software, it compile the program code of the controller and the displayer; At last, this paper design and make the simulation test device of control system of construction machinery, through the experiment, the realizability, the categoricalness, the reliability, the stability and real-time are tested, in addition, the improved methods are given.

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A method for the calculation of the ground potentials when the telecommunication equipment and other ground pipes buried metal pipes or metal sheathes of cables are influenced by the resistive coupling is suggested .

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It not only provides lower computation and communication, but also message confidentiality, authentication, unforgeability, non-repudiation, resisitance of malicious verifiers cheating others and so on, thus it satisfies the request of group communication and has great practical value and application prospect for the restriction of storage and computation developed hardware.

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CD-WO CompactDiscWriteOnce：一次寫入性光盤

CDW CommunicationDescriptionWord 通信描述字 | CD-WO CompactDiscWriteOnce 一次寫入性光盤 | CD-WOEA CompactDiscWriteOnceExtendArea 一次寫入性光盤的擴充區(qū)

CDW CommunicationDescriptionWord：通信描述字

CDW ComputerDiscountWarehouse 計算機中心公司,計算機廉價倉庫(美國,計算機業(yè)界最具影響力的直銷公司之一) | CDW CommunicationDescriptionWord 通信描述字 | CD-WO CompactDiscWriteOnce 一次寫入性光盤

laser coherence：激光相干性

laser chemistry 激光化學(xué) | laser coherence 激光相干性 | laser communication 激光通信

laser coherence：激光相干性Xmj中國學(xué)習(xí)動力網(wǎng)

laser cathode 激光契極Xmj中國學(xué)習(xí)動力網(wǎng) | laser coherence 激光相干性Xmj中國學(xué)習(xí)動力網(wǎng) | laser communication 激光通信Xmj中國學(xué)習(xí)動力網(wǎng)

communicativeness：通信性

通信終端機協(xié)議 communications terminal protocol,CTERM | 通信性 communicativeness | 通信器 communicator

legibility：易讀性 易讀性 清晰性

Leased line 租用線路(特定通信線路) 租用專線 租用的線路 | Legibility 易讀性 易讀性 清晰性 | Letter spacing 字間隔空;字間 字間;字間調(diào)整 加字母間距

man-machine communication system：人-機通信系統(tǒng)

maneuvering tank 操縱性試驗池 | man-machine communication system 人-機通信系統(tǒng) | manned 人工操縱;有人當(dāng)值

traffic：通信量

.通信量 (Traffic) 估 計;網(wǎng)絡(luò)規(guī)模直接涉及到幀中繼網(wǎng)絡(luò)的可行 性. 據(jù)筆者了 解,我國大部分地區(qū)和城市電信部門提供的公用幀中繼業(yè) 務(wù),是通過 DDN 節(jié)點機上的幀中繼專用卡實現(xiàn) 的. 一方 面,不同廠商和型號的幀中繼 卡,

WTC wireless telephone communication：無線電話通信

WATS wide area telephone service 大區(qū)電話服務(wù) | WTC wireless telephone communication 無線電話通信 | Wide Area Information Transfer System 寬域性信息傳送系統(tǒng)

intercommunicating system：雙工制AV美女激情在线、內(nèi)部通信設(shè)備

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