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パーソナルコンピュータとWireless Adapter を用いた船内ネットワーク
http://hdl.handle.net/10069/6547
http://hdl.handle.net/10069/654763626bf2-bd2f-43a4-b452-380dd09a4783
名前 / ファイル | ライセンス | アクション |
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82-129.pdf (133.3 kB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2007-02-20 | |||||
タイトル | ||||||
タイトル | パーソナルコンピュータとWireless Adapter を用いた船内ネットワーク | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
小妻, 勝
× 小妻, 勝× 高山, 久明 |
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著者別名 | ||||||
姓名 | Kozuma, Masaru | |||||
著者別名 | ||||||
姓名 | Takayama, Hisaaki | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Up to now, we have been attempting the construntion of the inboard network that uses the telephone line and inboard power supply (100V). However, since we need to have lines always available for emergency calls and ordinary business calls, we must avoid marking the inboard telephone lines busy. Moreover, if we are using our inboard 100V line for the telecommunication line, we might have some problems such as decrease in data transmission speed, or, in the extreme case, serious problems like communications failure, etc. in case of the occurrence of electric noise on the line. Another problem of the above both systems is that we could not let more than two personal computers access to each other at the same time. In order to solve those problems, we have had experiments on the inboard data transmission that uses Wireless Adapter. The inboard network that combines the modems and the radio lines cannot achieve good compatibilty between a modem and Wireless Adapter, causing poor communications efficiency. Accordingly, when we assume the limited use inboard communications only, we consider it best to install Wireless Adapter directly to RS-232C like System 2. And if the file are compressed before data transmission, data transmission efficiency improves 70-130%. In this case, we’ve confirmed that we’ve been able to support transmission of still images even at this speed. Therefore, we conclude that it would be the best policy to compress network drive file and data before transmission. | |||||
書誌情報 |
長崎大学水産学部研究報告 巻 82, p. 129-134, 発行日 2001-03 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 05471427 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178473 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
出版者 | ||||||
出版者 | 長崎大学水産学部 | |||||
sortkey | ||||||
P00129-P00134 | ||||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学水産学部研究報告 v.82 p.129-134 , 2001 |