| Presentation | 2021-10-08 [Encouragement Talk] A computer time correction method based on the wide range of temperature deviation characteristics of clock signal sources Kiyonari Katsura, Naoto Hoshikawa, Atsushi Shiraki, Tomoyoshi Ito, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | System clocks for IoT devices are generally inaccurate. Therefore, time synchronization is necessary for normal program operation. In particular, time synchronization using the Internet or satellite signals for IoT devices is not suitable due to the high power consumption for communication and radio reception. In order to solve this problem, a time correction technology has been proposed that learns the relationship between the time deviation and the CPU core temperature, and corrects the time deviation based on the temperature. In the previous study, the data was collected by letting the natural temperature change in the room to learn the temperature characteristics. Therefore, the temperature range was affected by the season, and the necessary temperature range could not be obtained when the correction was executed. In this paper, we solve this problem by using a thermostatic bath to obtain the time drift temperature characteristics. In the experiment, we actually performed the characteristic learning using a thermostatic bath and compared it with the conventional characteristic learning by natural temperature change. The effect of changing the method of property acquisition on the correction accuracy is also discussed. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | time correction / CPU core temperature / thermostatic chamber |
| Paper # | NS2021-80 |
| Date of Issue | 2021-09-29 (NS) |
| Conference Information | |
| Committee | NS |
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| Conference Date | 2021/10/6(3days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Network architecture (Overlay, P2P, Ubiquitous network, Scale-free network, Active network, NGN/NwGN, IoT, Edge computing, Next generation packet transport (High speed Ethernet, IP over WDM, Multi-service package technology, MPLS), Grid, etc. |
| Chair | Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | Tetsuya Oishi(NTT) |
| Secretary | Tetsuya Oishi(NTT) |
| Assistant | Kotaro Mihara(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Network Systems |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Encouragement Talk] A computer time correction method based on the wide range of temperature deviation characteristics of clock signal sources |
| Sub Title (in English) | |
| Keyword(1) | time correction |
| Keyword(2) | CPU core temperature |
| Keyword(3) | thermostatic chamber |
| 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 | Atsushi Shiraki |
| 3rd Author's Affiliation | Chiba University(Chiba Univ.) |
| 4th Author's Name | Tomoyoshi Ito |
| 4th Author's Affiliation | Chiba University(Chiba Univ.) |
| Date | 2021-10-08 |
| Paper # | NS2021-80 |
| Volume (vol) | vol.121 |
| Number (no) | NS-185 |
| Page | pp.pp.64-69(NS), |
| #Pages | 6 |
| Date of Issue | 2021-09-29 (NS) |