To provide a soundness diagnostic device for a movable platform fence which detects early a precursory phenomenon of a failure.SOLUTION: A soundness diagnostic device for a movable platform fence comprises a torque command value acquisition part 21 which acquires torque command values specified for motor drivers 13a, 13b of platform fence drive motors 7a, 7b during an operation of a fence and generates a torque command value sequence that is a sequence of plural torque command values and a diagnosis part 23 which, when To is an element of the torque command value sequence generated by the acquisition part 21, To' is an element neighboring on To and Do is a difference of To and To' and Ts is not only an element of a reference torque command value sequence but also corresponding to To, Ts' is an element neighboring to Ts and Ds is a difference of Ts and Ts', compares an absolute value of a mutual difference of the difference Do and the difference Ds with a reference value and if, about any element To of the torque command value sequence, the absolute value of the mutual difference of Do and Ds and the reference value satisfy a preliminarily decided condition, diagnoses the fence as faulty.SELECTED DRAWING: Figure 3
【課題】故障の前兆現象の発生を早期に発見できる可動ホーム柵の健全性診断装置を提供する。【解決手段】可動ホーム柵の運用時において、可動ホーム柵の駆動用モータ7a,7bのモータドライバ13a,13bに指令されるトルク指令値を取得して、複数個のトルク指令値の配列であるトルク指令値列を作成するトルク指令値列取得部21と、トルク指令値列取得部21で作成されたトルク指令値列の構成要素Toについて、構成要素Toと構成要素Toに隣接する構成要素To’の差分Doと、基準トルク指令値列において構成要素Toに対応する構成要素Tsと構成要素Tsに隣接する構成要素Ts’の差分Dsの差の絶対値を基準値と比較し、トルク指令値列のいずれかの構成要素Toについて、差分Doと差分Dsの差の絶対値と基準値とが予め設定されている条件を満たす場合に、可動ホーム柵に異常があると判断する診断部23と、を備える。【選択図】図3
SOUNDNESS DIAGNOSTIC DEVICE FOR MOVABLE PLATFORM FENCE
可動ホーム柵の健全性診断装置
2019-07-11
Patent
Elektronische Ressource
Japanisch
MOVABLE PLATFORM FENCE AND ROW OF MOVABLE PLATFORM FENCE
Europäisches Patentamt | 2018
|