基于IPv6的WSN圖像監(jiān)控系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)

摘 要:為拓展無(wú)線傳感器網(wǎng)絡(luò)的應(yīng)用，設(shè)計(jì)并實(shí)現(xiàn)了一種基于IPv6無(wú)線傳感器網(wǎng)絡(luò)的圖像監(jiān)控系統(tǒng)。系統(tǒng)在IPv6的環(huán)境中實(shí)現(xiàn)了紅外傳感器節(jié)點(diǎn)控制，圖像傳感器節(jié)點(diǎn)以ARM作為處理器，在嵌入式Linux中設(shè)計(jì)V4L程序?qū)崿F(xiàn)采集實(shí)時(shí)圖像，圖像匯聚到網(wǎng)關(guān)后，網(wǎng)關(guān)利用多種Internet接入方式將信息返回到客戶端。網(wǎng)絡(luò)中融合了多種類型的數(shù)據(jù)，系統(tǒng)分別采用IEEE802.15.4和WiFi方式進(jìn)行傳輸，可以提高網(wǎng)絡(luò)傳輸效率與可靠性，并能夠方便地用于入侵檢測(cè)等多媒體圖像監(jiān)控方面。

關(guān)鍵詞:無(wú)線傳感器網(wǎng)絡(luò); 圖像監(jiān)控; 入侵檢測(cè); IPv6

中圖分類號(hào):TN911.73; TP393 文獻(xiàn)標(biāo)識(shí)碼:A

文章編號(hào):1004-373X(2010)14-0162-05

Design and Implementation of Image Monitoring System Based on WSN of IPv6

CUI Jie1，2， ZHOU Hua-chun1，2， GAO De-yun1，2， ZHENG Tao1，2

(1.School of Electronics and Information Engineering， Beijing Jiaotong University， Beijing 100044， China;

2.National Engineering Laboratory for Next Generation Internet Interconnection Devices， Beijing 100044， China)

Abstract: A kind of image monitoring system based on wireless sensor network of IPv6 was designed and implemented to expand the application of wireless sensor networks. The system realized infrared sensor nodes controlling in the environment of IPv6， and the image sensor nodes made ARM as processors， and captured current images by V4L program in embedded Linux. When the gateway collected the images， it would send the information to client through multi-Internet access methods. Due to different types of data included in the networks， the IEEE802.15.4 and WiFi transmission were used by the system could enhance transmission efficiency and reliability of the networks. The system can be easily applied in multimedia image monitoring such as intrusion detection.

Keywords: wireless sensor networks; image monitoring; intrusion detection; IPv6

0 引 言

無(wú)線傳感器網(wǎng)絡(luò)[1] (wireless sensor network， WSN)是由大規(guī)模部署的微型傳感器節(jié)點(diǎn)以自組織的方式構(gòu)成的網(wǎng)絡(luò)。最終實(shí)現(xiàn)了人與物理世界的信息交互，大大擴(kuò)展了人類的感知范圍。經(jīng)裁剪和優(yōu)化的IPv6協(xié)議可以很好地與無(wú)線傳感器網(wǎng)絡(luò)融合。在新型網(wǎng)絡(luò)IPv6無(wú)線傳感器網(wǎng)絡(luò)的基礎(chǔ)上搭建圖像監(jiān)控系統(tǒng)，實(shí)現(xiàn)了在Internet上的客戶端可以獲取遠(yuǎn)程傳感器網(wǎng)絡(luò)的周邊狀況的實(shí)時(shí)圖像，了解無(wú)線傳感器網(wǎng)絡(luò)節(jié)點(diǎn)的工作狀態(tài)。圖像傳感器節(jié)點(diǎn)能夠同時(shí)與其他節(jié)點(diǎn)協(xié)同工作，滿足不同的需求。

由于無(wú)線傳感器網(wǎng)絡(luò)的能量和資源受限，其與多媒體的融合有很多地方值得研究。如何在傳感器網(wǎng)絡(luò)多媒體數(shù)據(jù)傳輸過(guò)程中減少傳輸時(shí)間，降低能量消耗以及服務(wù)質(zhì)量保證成為了現(xiàn)在WSN的研究重點(diǎn)[2] 。其中，圖像壓縮[3] 、多媒體數(shù)據(jù)網(wǎng)內(nèi)處理、有效節(jié)能的路由機(jī)制在多媒體傳感器網(wǎng)絡(luò)中都取得了一定進(jìn)展。……