PROBLEM TO BE SOLVED: To provide a pit state confirmation system of an elevator, which can save time and labor for confirmation work by a worker and keep an environment in the pit at a constant level.SOLUTION: A pit state confirmation system 20 comprises: an imaging section 22 that images predetermined areas in a pit 10 below a hoistway 12 at maintenance decision time intervals; a discriminating section 24 that divides the images taken by the imaging section 22 into a plurality of squares and discriminates brightness of each square between two values of a white level and a black level; and comparing/outputting section 26 that compares the two values discriminated by the discriminating section 24 with two values previously discriminated for each square, and when the number of squares which change from the white level to the black level or from the black level to the white level surpasses a predetermined threshold, outputs a maintenance signal showing that maintenance is necessary.
【課題】エレベータのピット状況確認システムにおいて、作業員の確認作業の手間を省いてピット内の環境を一定レベルに保つことを可能とすることである。【解決手段】ピット状況確認システム20は、昇降路12下部のピット10内の予め定められた領域を所定の保守判定時間間隔で撮像する撮像部22と、撮像部22に撮像された画像を複数のマス目に分割し、各マス目の輝度を白レベルと黒レベルの二値に判定する判定部24と、判定部24によって判定された二値と以前に判定された二値とをマス目ごとに比較して、白レベルから黒レベル又は黒レベルから白レベルへ変化したマス目数が所定の閾値を超えるときに保守が必要であることを示す保守信号を出力する比較出力部26と、を備える。【選択図】図1
PIT STATE CONFIRMATION SYSTEM OF ELEVATOR
エレベータのピット状況確認システム
2015-08-24
Patent
Electronic Resource
Japanese
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