| 摘要 |
Information including normal and abnormal operating conditions and events, occurring during the operation of an elevator car door and landing doors, is monitored and recorded (FIGS. 1-28), compared and combined with other information and with thresholds to detect notable events and conditions and generate corresponding maintenance recommendation messages, in response to which maintenance operations are performed. The maintenance messages include adjusting or cleaning: the car door vane (C), the landing door lock at a given floor (D, E), the car door closed switch (F), the car door track or the car door sill (M), a landing door track or landing door sill (N), the car door drive belt (O), the elevator car door motor or the related door controller mechanism (R), and car guide rails (YY); adjusting or replacing the door position encoder (DD), the between-door safety device (GG), door open and close buttons, landing call and car call buttons (LL) and lights (SS), and the car rail guides (WW).
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