| 摘要 |
PURPOSE:To carry passengers effectively to their respective destination floors by equipping an operation control means with a function to give a cage call command in priority only when the frequency of cage call occurrences sensed by a cage call frequency sensing means for a backup control means is low in case the place-of-getting-on call registration system is in failure. CONSTITUTION:When a call power supply signal S1 is downed and no place-of- getting-on registration can be made any more, a place-of-getting-on call registration abnormality judging part 6 gives an abnormality judge signal to the backup judgement control part 5-3 of an elevator operation control device 5. Now the control part 5-3 gives a signal showing abnormality in the place-of-getting-on call to a call response control part 5-1 and also a backup command for stopping the cage at each floor to a travel control part 5-2. At this time, a cage call frequency judging device 7 computes the mean time of intervals of cage call occurrences, and the result is given as the cage call frequency to the control part 5-3. The control part 5-3 stops the cage entered into the control part 5-2 at each floor when the cage call frequency is higher than the set value, and responds to the cage call when lower. |
