| Presentation | 2021-03-04 A Study on Availability Enhancement for State Transition based Networked Control System Koki Igawa, Yohei Tsukamoto, Osamu Toyama, Katsuyoshi Takahashi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In recent years, a control system, where input/output nodes and a controller node with control logic are connected to network, becomes more common in industrial fields. In such a system, if the output node fails to receive the packet from the controller node for a certain time due to temporal communication failures, such as communication delay and packet loss, error handling such as fail-safe process can be performed. However, if temporal communication failure happens frequently, system availability is reduced by frequent error handling. In this paper, based on state-machine based control, we propose a method to enhance availability by distributing a part of state with control logic which requires responsiveness from the control node to the output node and introducing the mechanism to guarantee the consistency of both nodes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Network / Control System / Communication Failure / Availability |
| Paper # | NS2020-128 |
| Date of Issue | 2021-02-25 (NS) |
| Conference Information | |
| Committee | IN / NS |
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| Conference Date | 2021/3/4(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | General |
| Chair | Kenji Ishida(Hiroshima City Univ.) / Akihiro Nakao(Univ. of Tokyo) |
| Vice Chair | Kunio Hato(Internet Multifeed) / Tetsuya Oishi(NTT) |
| Secretary | Kunio Hato(Hiroshima City Univ.) / Tetsuya Oishi(KDDI Research) |
| Assistant | / Shinya Kawano(NTT) |
| Paper Information | |
| Registration To | Technical Committee on Information Networks / 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) | A Study on Availability Enhancement for State Transition based Networked Control System |
| Sub Title (in English) | |
| Keyword(1) | Network |
| Keyword(2) | Control System |
| Keyword(3) | Communication Failure |
| Keyword(4) | Availability |
| 1st Author's Name | Koki Igawa |
| 1st Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 2nd Author's Name | Yohei Tsukamoto |
| 2nd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 3rd Author's Name | Osamu Toyama |
| 3rd Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| 4th Author's Name | Katsuyoshi Takahashi |
| 4th Author's Affiliation | Mitsubishi Electric Corporation(Mitsubishi Electric) |
| Date | 2021-03-04 |
| Paper # | NS2020-128 |
| Volume (vol) | vol.120 |
| Number (no) | NS-413 |
| Page | pp.pp.31-36(NS), |
| #Pages | 6 |
| Date of Issue | 2021-02-25 (NS) |