SIGNAL CONTROL SYSTEM

PROBLEM TO BE SOLVED: To provide a signal control system capable of recognizing a symptom of a system abnormality.SOLUTION: A signal control system 1 includes: a control processing part 20 for outputting a control signal for controlling a controlled object; and a monitoring part 10 for monitoring th...

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Bibliographic Details
Main Authors KONNO YOICHI, WATANABE NAOYUKI, TAMAGAWA KOICHIRO
Format Patent
LanguageEnglish
Japanese
Published 19.05.2016
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Summary:PROBLEM TO BE SOLVED: To provide a signal control system capable of recognizing a symptom of a system abnormality.SOLUTION: A signal control system 1 includes: a control processing part 20 for outputting a control signal for controlling a controlled object; and a monitoring part 10 for monitoring the control processing part 20. The control processing part 20 includes a storage part 27 and a calculation part 25. The storage part 27 stores a keyword showing a content of the abnormality in the control processing part 20, history information including the keyword corresponding to the abnormality generated when the abnormality occurs in the control processing part 20, and an occurrence permissible number of the history information having the same keyword. The calculation part 25 outputs an alarm signal to the monitoring part 10 when the number of times of the occurrences of the history information having the same keyword reaches the permissible number of occurrences. The calculation part 25 registers a new keyword received from the monitoring part 10 and new permissible number of occurrences in the storage part 27 or updates the permissible number of occurrences stored in the storage part using the new permissible number of occurrences.SELECTED DRAWING: Figure 1 【課題】システム異常の兆候を認知することを可能とする信号制御システムを提供する。【解決手段】信号制御システム1は、被制御対象を制御する制御信号を出力する制御処理部20と、制御処理部20を監視する監視部10とを備える。制御処理部20は、記憶部27と、演算部25とを備える。記憶部27は、制御処理部20における異常の内容を示すキーワード、制御処理部20において異常が発生した場合に生成され異常に対応するキーワードを含む履歴情報、並びに、同一のキーワードを有する履歴情報の発生許容回数を格納する。演算部25は、同一のキーワードを有する履歴情報の発生回数が発生許容回数に達した場合に、監視部10へ警報信号を出力する。演算部25は、監視部10から受け取った新たなキーワードおよび新たな発生許容回数を記憶部27へ登録し、あるいは、新たな発生許容回数を用いて記憶部内に記憶された発生許容回数を更新する。【選択図】図1
Bibliography:Application Number: JP20140216708