Kazuhiro Mishima

In this paper, we describe the new automated large-scale remote lecture system. The system can connect from mobile devices. Our previous system was also automated, but previous system could not connect mobile devices. We built a new system with user interface same as a previous system. Therefore use of a new system is simple. We describe construction and the problems of a new system. And we started the operation of a new system in February, 2016. The system is used from the whole country.

近年多くの業務用アプリケーションで Microsoft Windows 上等で動作するネイティブアプリケーションから，Web ブラウザ上で動作する Web アプリケーションへの移行が進んでいる．一方で IC カードの普及が進み，多くの場所で利用されるようになってきた．IC カードをこれら業務用アプリケーションで利用するためには，IC カードリーダ・ライタのデバイスドライバの対応等が必要で，アプリケーション自体もその入力に対応する必要があった．このため IC カード対応のために改修が必要であるなどコスト増の問題となっていた．本稿では，IC カードリーダをキーボード入力型とすることにより Web アプリケーションで利用しやすいようにするシステムの提案を行い，プロトタイピングと課題について述べる．

本稿では，小型かつ低価格な情報デバイスを利用したデジタルサイネージシステムの可能性について検討するため，その表示システムのプロトタイプ実装を行い，学内に展開した事例について詳説する．東京農工大学では，電力見える化等の取り組みを積極的に行っており，この一部として電力量等をデジタルサイネージとして表示するシステムが稼働している．近年，システムの老朽化と搭載 OS のサポート期限の兼ね合いから，システムの更新を必要とする段階となり，表示端末をより低コストに構築できる手段について検討を行った．加えて，学内施設での教育研究紹介ビデオの表示を行うシステム構築に関する依頼もあり，いずれの表示も可能とする表示デバイスを Raspberry Pi にて試作する取り組みを実施した．本システムにより，表示デバイスとしては必要となる周辺部品を含めて 1 万円を切るデジタルサイネージシステムの実現を目指している．本稿では，この取り組みの概要，Raspberry Pi を利用したプロトタイプの詳細，パフォーマンスを要するコンテンツ表示に利用するサポートサーバの詳細，実際に運用を行った取り組み詳細とその課題についてまとめる．This manuscript is describing a prototype implementation of a Digital Signage System using Small-size and Low-price Information Device. Implementation detail and use-case in our university are also describing. Our university was constructing and operating the electric power visualization system for few years. Nowadays, we need to renew the visualization system by hardware issues and OS support issues. And, we also need to construct a signage system, which plays some video content. For these reasons, we constructed the "cost-effective" digital signage system using Raspberry Pi (as single board computer). By using this system, very low cost digital signage system can be achieved.

This manuscript is describing a Portable Teleconferencing System using Portable Managed Wi-Fi System. We introduced a "Portable Managed Wi-Fi System", using a portable WiMAX consumer router, as a part of our academic information system. From April 2013, this system is running as part of an academic wireless LAN system for students and faculty members. In this manuscript, we introduce a prototype "Portable Teleconferencing System" as a use case of "Portable Managed Wi-Fi system". In our university, each faculty, departments, etc. are dispersed in Aoyama campus and Sagamihara campus. For this reason, we are often held a remote meeting with a teleconferencing system that was introduced as part of the administrative system, such as there are participants from both campuses. However, the network used in these systems requires the Wired LAN network environment, the dedicated room which is installed a teleconferencing system, and the dedicated VLAN network. For this reason, there are situations it is not able to use the dedicated room with the teleconferencing system, even if the remote meeting is needed. Therefore, in order to overcome this situation, we designed and implemented a Prototype Teleconferencing System, regardless of the particular room and a Wired LAN network environment. This system uses our "Portable Managed Wi-Fi System" and "Teleconferencing System". It becomes possible by the implementation of this system, providing more flexible teleconferencing infrastructure.

This manuscript is describing a portable managed Wi-Fi system, which is implemented in 2013 system replacement time. Wireless and Wired LAN infrastructure is provided as existing facilities at Aoyama Gakuin University. However, we have some buildings without Wired LAN equipment required to install fixed wireless access point. Even in this situation, end-user's demand for the Wireless LAN infrastructure is increasing in recent years. This results in dilemma between infrastructure cost and providing a flexible network environment. Therefore, we investigated providing portable Wi-Fi system using portable router which is using WiMAX as WAN line. In addition, the Wireless LAN system which provides the university information system, the access point management functions for logging the utilization status of the network and user authentication function is also an important factor. In the system, we have also considered these: 1) Access point can be used anywhere on campus, 2) It is possible to perform appropriate user authentication and 3) Usage of Wireless LAN system can know while being portable Wi-Fi system. The system is providing to the user as a rental system on both Aoyama and Sagamihara campus. It becomes possible by the implementation of this system, providing more flexible Wireless LAN infrastructure.