著者

植村 渉 村田 正

出版者

一般社団法人情報処理学会

雑誌

情報処理学会研究報告デジタルドキュメント(DD) (ISSN:09196072)

巻号頁・発行日

vol.2008, no.114, pp.71-76, 2008-11-20

参考文献数

11

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基地局を介さず端末のみでネットワークを構築するアドホックネットワークが近年注目されている.このネットワークでは,管理者となるサーバが存在しないため,ネットワークに流れる情報の管理が難しい.本研究では,アドホックネットワークの技術を監視カメラシステムに適用し,新しいシステムを提案する.撮影したカメラ画像をネットワーク内の端末で共有することで,犯罪証拠画像の完全破壊を困難にする.In ad-hoc network, we can build a network infrastructure easily. In addition, it is easy to add nodes to the network and to remove them from it. So the ad-hoc network technology lends itself to applications such as the environment where a lot of nodes go in and out frequently. In this paper, we propose a novel surveillance camera system at a car park in ad-hoc network. A node mounted on a vehicle has a camera and sends a picture to neighbor nodes. Even if the node is damaged or removed by a vehicle thief, we can know the thief information from the other nodes which received its picture. Each node has own random strings data, and the picture information is calculated by XOR operation from its original picture data, so the picture information can not be decoded into the original picture without the same strings data. We can not know its strings data even if using a lot of picture information because the length of the strings data is more longer than one of the picture data. Then a node cannot get the neighbor original picture. The strings data can be kept at only both the own node and the administrator of its car parking lot. If the node is stolen or broken down, then the administrator can decode the picture information at the neighbor node into the original picture data. We propose a novel surveillance ad-hoc network system at a car park in this paper.