To accurately detect abnormality of a footstep roller and a footstep chain inexpensively while being hardly affected by disturbance.SOLUTION: An escalator abnormality detection device includes a speed detection unit for detecting the traveling speed of an escalator, distance sensors provided in right and left two positions while sandwiching a footstep therebetween to measure a distance up to a rotation shaft of a footstep roller, an abnormality determination unit for detecting abnormality of the footstep roller based on whether or not distance signals output from the distance sensors are in a normal range and detecting abnormality of a footstep chain based on the time difference until the rotation shaft of the footstep roller is detected by the distance sensors provided in the right and left two positions if the speed measured by the speed detection unit is a fixed speed or more, and an abnormality output unit notifying the outside of the abnormality detected by the abnormality determination unit.SELECTED DRAWING: Figure 4
【課題】 外乱の影響を受けにくく、安価に踏段ローラ及び踏段チェーンの異常を精度良く検出する。【解決手段】 エスカレータの走行速度を検出する速度検出部と、踏段を挟んで左右2か所に設けられた踏段ローラの回転軸までの距離を測定する距離センサと、前記距離センサから出力される距離信号が正常範囲内にあるか否かに基づき前記踏段ローラの異常を検出すると共に、前記速度検出部で測定した速度が一定速度以上の場合に前記左右2カ所に設けられた距離センサの踏段ローラの回転軸を検出するまでの時間差に基づき踏段チェーンの異常を検出する異常判定部と、前記異常判定部で異常検出したことを外部に通知する異常出力部と、を備える。【選択図】図4
ESCALATOR ABNORMALITY DETECTION DEVICE AND ESCALATOR ABNORMALITY DETECTION METHOD
エスカレータ異常検出装置およびエスカレータ異常検出方法
2023-03-14
Patent
Electronic Resource
Japanese
IPC: | B66B Aufzüge , ELEVATORS |
Escalator abnormality detection device and escalator abnormality detection method
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