According to the research , the last part emphasis on two aspects of the lns service : building a lonworks network , monitoring and controlling network using single point monitoring 此外,還根據(jù)課題的涉及內(nèi)容,重點(diǎn)介紹了基于lns模式的網(wǎng)絡(luò)組建,設(shè)備安裝,以及網(wǎng)絡(luò)變量綁定等內(nèi)容。
We thoroughly discussed the architecture and design process of the fieldbus monitoring and control network , and we also studied the dp interface programming according to the problem met in the design process 作者詳細(xì)闡述了監(jiān)控網(wǎng)絡(luò)的組成結(jié)構(gòu)和設(shè)計(jì)過(guò)程,并針對(duì)設(shè)計(jì)中遇到的問(wèn)題對(duì)dp接口編程做了相關(guān)研究。
Monitor and control network ' s construction can not be achieved by piling up safety product and some technique in brief , so with the concept of the system engineering , i research the whole solution of the monitor and control network safety finally 由于網(wǎng)絡(luò)安全建設(shè)并不是技術(shù)和安全產(chǎn)品的簡(jiǎn)單堆砌,所以最后采用系統(tǒng)工程的概念,研究了監(jiān)控網(wǎng)絡(luò)安全的整體解決方案。
The design thought is : on the basis of the previous catv network , to add a main control unit at the mixer part , and embed a node units in each dual - direction amplifier , accordingly , consititue a safe monitoring and control network 設(shè)計(jì)思路是在原有的有線電視網(wǎng)的混合器部分外加一個(gè)主計(jì)算機(jī)控制單元,并在各放大器部分分別嵌入一個(gè)節(jié)點(diǎn)控制單元,從而構(gòu)成一個(gè)監(jiān)控網(wǎng)絡(luò)。
Web - based management , wbm in short , is a kind of new tri - layer architecture . manager can monitor and control network ' s state conveniently and flexibly by using wbm , and this technology can also bring good performance and expandability to nms 基于web的管理模式是一種全新的三層結(jié)構(gòu),它不僅讓管理員能夠方便靈活地監(jiān)控整個(gè)網(wǎng)絡(luò)的狀態(tài),而且這種模式具有良好的性能和可擴(kuò)展性。
Network management is to control and optimize the operation of the network and to respond to changing user requirements . the management includes the control and monitoring of the network . to satisfy this requirements , different management standards are developed , such as java management extensions , which a good management architecture that developed by sun microsystems , inc . based on java management extensions , we develop a set of agent network management system . by the system , users can monitor and control network resources through web browser 隨著網(wǎng)絡(luò)的迅速發(fā)展,新技術(shù)、新設(shè)備層出不窮,網(wǎng)絡(luò)的構(gòu)成也日趨復(fù)雜。為了網(wǎng)絡(luò)的正常運(yùn)行和服務(wù)質(zhì)量的保證,對(duì)網(wǎng)絡(luò)的有效管理也越來(lái)越重要。網(wǎng)絡(luò)管理就是根據(jù)用戶(hù)的需要控制并優(yōu)化網(wǎng)絡(luò)資源,包括對(duì)網(wǎng)絡(luò)的監(jiān)視和控制。
In this text the basic theories and the applied truss of the network monitor and control the system are discussed firstly , the inevitability is also analyzed about monitor and control network facing with the frequent safety threaten . then i research each safety aspect of network remote monitor and control system through academic study , engineering practice and a lot of simulation experiment . at the same time i research deeply and systemically in the popular virus problems and the dangerous hacker ' s attack 本文討論了網(wǎng)絡(luò)監(jiān)控系統(tǒng)的基本理論和應(yīng)用構(gòu)架,分析了監(jiān)控網(wǎng)絡(luò)面臨經(jīng)常的安全威脅的必然性,然后通過(guò)理論研究、工程實(shí)踐以及大量的模擬實(shí)驗(yàn),對(duì)網(wǎng)絡(luò)遠(yuǎn)程監(jiān)控系統(tǒng)安全性問(wèn)題的各個(gè)方面進(jìn)行了廣泛的研究,對(duì)其中最常見(jiàn)的計(jì)算機(jī)病毒問(wèn)題以及最可能造成嚴(yán)重危害的黑客攻擊問(wèn)題進(jìn)行了深入系統(tǒng)的研究。
In the paper , we first analyzed the birth of fieldbus and its characteristic and excellences , then we thoroughly studied the network architecture and communication protocol of profibus and as - i . on the foundation of above works , we designed a small but applied fieldbus monitoring and control network , which provides a ideal study and experiment platform for the application of profibus and as - i technology 本文首先分析了現(xiàn)場(chǎng)總線的產(chǎn)生原因及其特點(diǎn)、優(yōu)點(diǎn);接著著重研究了profibus - dp和as - i總線的網(wǎng)絡(luò)體系結(jié)構(gòu)和通信協(xié)議;然后在此基礎(chǔ)上設(shè)計(jì)了一個(gè)小型的功能齊全的現(xiàn)場(chǎng)總線監(jiān)控網(wǎng)絡(luò),為profibus - dp 、 as - i總線技術(shù)的應(yīng)用提供了一個(gè)理想的研究實(shí)驗(yàn)平臺(tái)。