- 著者
- 村上 恒夫
- 出版者
- 日本国際情報学会
- 雑誌
- 国際情報研究 (ISSN:18842178)
- 巻号頁・発行日
- vol.1, no.1, pp.61-72, 2004-05-10 (Released:2017-01-02)
How an IT-based society should inform its citizens of potential natural disasters in advance so that they can take preventive measures. This is the main point that this paper is going to consider.The process of urbanization has gone so far as to reach rural and mountainous regions and to expose inhabitants concerned to the threats of natural disasters. Populated areas have expanded. More and more people have come to inhabit areas where no or few people lived formerly. In proportion to that, workings of nature are no longer mere forces of nature, but have become causes of an increasing number of actual threats and disasters. The point is whether local governments or municipal corporations are sufficiently equipped and prepared to provide that kind of information which residents of areas concerned really need and find useful in preventing disasters?The author has looked through disaster prevention information websites, especially of local governments. The examination revealed that some local governments are doing the very best they can to provide necessary information and others make little effort, that the methods they use of providing information are quite various, that this diversity and difference in turn give rise to information gaps between one government and another. These and other facts all point to an important issue: there is still a long way to go before most local governments can provide necessary and sufficient information of natural disasters by means of IT.
1 0 0 0 バーコードリーダ機能を持つスマートフォンの光学系設計
- 著者
- 栗山 敏秀 村上 恒夫
- 出版者
- 一般社団法人 映像情報メディア学会
- 雑誌
- 映像情報メディア学会技術報告 (ISSN:13426893)
- 巻号頁・発行日
- vol.41, pp.1-8, 2017
スーパーマーケットのような小売業における在庫、発注システムの IoT (Internet of Things)化の例として、従来のバーコードリーダの代わりにスマートフォンが持つバーコードリーダ機能と WiFi 機能を利用し、従来のバーコードリーダ専用機と同等の使い勝手と無線によるクラウドへのバーコード(商品) 情報の接続を目指して、スマートフォンに付加するバーコードリーダ用光学系を設計し、実装を行った。リトロープリズムとシリンドリカルレンズ付きリトロープリズムをそれぞれカメラと LED(赤色フィルタとスリットを追加) に装着することにより、一般のバーコードリーダに近い使い勝手を持つスマートフォンを実現した。
- 著者
- 栗山 敏秀 村上 恒夫
- 出版者
- 一般社団法人 電気学会
- 雑誌
- 電気学会論文誌. E, センサ・マイクロマシン部門誌 (ISSN:13418939)
- 巻号頁・発行日
- vol.138, no.10, pp.455-460, 2018
<p>The human error prevention system is realized by 3-point collation using a barcode reader. A new optical device consisting of Littrow prism and cylindrical lens, which are optically aligned with a built-in camera and an LED in a smartphone, has realized the smartphone with the same usability as the conventional barcode reader.</p>