網際網路遠端監控系統

Remote Supervision and Control Over The Internet

洪松山(Sung-Shan Hung)

指導教授 ： 王居尉

亞洲大學/資訊學院/資訊科學與應用學系碩士班/碩士(2004年)

摘要

基於網際網路的蓬勃發展，使得傳統的監控系統有了一個很大的改革空間。以前的系統使用專線作為傳輸的媒介，設備和維護人員之間被固定在定點的兩端，設備在現場而維護人員在監控中心，控制方式及終端設備均缺少彈性，而且專線昂貴的租費也成為系統固定的負擔。本論文研究的主題『網際網路遠端監控系統(Remote Supervision and Control Over The Internet)』，研究以網路取代專線作為傳輸的平台，設備和維護人員之間就變得很有彈性，系統管理、維護人員可以在任何地方、任何時間，透過網路進入系統達成遠端監控e化及系統化的目標。
本論文研究利用網路無遠弗屆的特性，架構一個以Web-based技術為基礎的遠端監控系統。期間也考慮到目前現存的系統，幾乎是採用老舊的RS-232介面和電腦界接。但現在市場所生產的個人電腦，大部份並無RS-232介面的配備，因此，我們也進行以USB介面來連接監控設備的實現。研究過程歷經了實際評估、收集資料、進行實驗、編寫、修改、除錯程式、線上測試、線上作業等繁複階段，終於實現了一個具有RS-232和USB雙重介面並存的網路遠端監控系統，大大地增強本實作的價值。
由於網際網路是開放性系統，隨時會遭受惡意的入侵或電腦病毒的威脅。因而，安全防護是不可或缺的一環，在系統實作過程中。我們亦加入防火牆的裝置及入侵偵測防禦系統(Intrusion Detection and Prevention System) ，以確保此監控系統安全的可靠性。

關鍵字

網際網路遠端監控系統 ； RS-232介面 ； USB介面 ； 防火牆 ； 入侵偵測防禦系統

並列摘要

The prosperous development of the Internet gives a large area of improvement to the traditional monitoring systems which use leased lines as the transmission media. As confined by the leased line, the old system can be accessed only at the remote site of the line. Thus the old system is lack of mobility. Moreover, the leased lines are expensive compared to subscribing the access for the Internet. In this paper we focus on the feasibility of replacing the legacy leased lines with TCP/IP connections for the communication media to build a remote supervision and control system. By this way, the system is more flexible as the operators can get access to monitor and control the system from anywhere and at anytime.
Since most of the existing systems are connected to the computer with the legacy RS-232 interface and the recently produced PCs have no such interface equipped, the popular USB interface has to be considered. This study includes the process of evaluation, data collection, experiment, editing, revision, debugging, on-line test, and on-line operation to construct an web-based remote control system that carries both RS-232 and USB interfaces. We believe that with the USB equipped, the system will be more practical and valuable.
Since the Internet is an open system, it is under the threats of hacking and computer virus all the time. Therefore, security is a critical issue. In our system, a firewall system and an intrusion detection and prevention one will be installed to ensure the security.

並列關鍵字

Remote Supervision and Control Over The Internet ； Web-based ； RS-232 interface ； USB interface ； firewall ； Intrusion Detection and Prevention System

參考文獻

[14] Chapman & Zwicky , "Building Internet Firewalls ", O’REILLY Inc

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