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| Presentation | 2021-03-05 09:30 Improving Estimation Method for Time Drift Characteristics Using Thermostatic Chamber Kiyonari Katsura, Naoto Hoshikawa, Katsumi Hirata (NIT, Oyama College), Atsushi Shiraki, Tomoyoshi Ito (Chiba Univ.)  NS2020-144 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Since a computer system’s time deviations can result in system malfunction, time correction technology via IP communication is generally used. Some computers do not have access to the Inernet, so that stand-alone time correction method which does not use a network has been proposed for such devices. In that method, the time drift characteristic, which represents the relationship between the CPU core temperature and the system time deviations, is estimated and used for time correction. However, it is important to improve the accuracy of the estimation of the characteristics in order to further improve the effectiveness of the time correction. In this paper, we reveal that the accuracy of the characteristics estimation can be improved by adjusting the measurement intervals and keeping the CPU core temperature constant. The measurement intervals can be easily adjusted by changing the program, and to keep temperature constant can be achieved by using a thermostatic chamber. In an experiment, we compared the characteristics estimation accuracy with that of the conventional estimation method under room temperature. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | time correction / CPU core temperature / / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 413, NS2020-144, pp. 126-130, March 2021. | |
| Paper # | NS2020-144 | |
| Date of Issue | 2021-02-25 (NS) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | NS2020-144 |
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| Conference Information | |
| Committee | IN NS |
| Conference Date | 2021-03-04 - 2021-03-05 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Paper Information | |
| Registration To | NS |
| Conference Code | 2021-03-IN-NS |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Improving Estimation Method for Time Drift Characteristics Using Thermostatic Chamber |
| Sub Title (in English) | |
| Keyword(1) | time correction |
| Keyword(2) | CPU core temperature |
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| 1st Author's Name | Kiyonari Katsura |
| 1st Author's Affiliation | National Institute of Technology, Oyama College (NIT, Oyama College) |
| 2nd Author's Name | Naoto Hoshikawa |
| 2nd Author's Affiliation | National Institute of Technology, Oyama College (NIT, Oyama College) |
| 3rd Author's Name | Katsumi Hirata |
| 3rd Author's Affiliation | National Institute of Technology, Oyama College (NIT, Oyama College) |
| 4th Author's Name | Atsushi Shiraki |
| 4th Author's Affiliation | Chiba University (Chiba Univ.) |
| 5th Author's Name | Tomoyoshi Ito |
| 5th Author's Affiliation | Chiba University (Chiba Univ.) |
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| Speaker | Author-1 |
| Date Time | 2021-03-05 09:30:00 |
| Presentation Time | 20 minutes |
| Registration for | NS |
| Paper # | NS2020-144 |
| Volume (vol) | vol.120 |
| Number (no) | no.413 |
| Page | pp.126-130 |
| #Pages | 5 |
| Date of Issue | 2021-02-25 (NS) |
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