Double deck destination control

A control system for double deck elevators that requires every passenger to enter his or her destination on the landing. When a call is entered, the system makes an allocation and immediately displays the selected elevator to the passenger.

When a new call is introduced, the system calculates every passenger’s remaining waiting and transit time for each possible allocation. The allocation is made according to the selected Cost Function, which is either: (i) Minimum time to destination, (ii) Minimum waiting time, or (iii) Minimum 3× waiting time + transit time — for which waiting time is deemed to be three times as important as transit time when choosing which car to allocate.

Allow allocations requiring doors to re-open is an option which determines whether or not the dispatcher is allowed to allocate a new destination call at the elevator’s current floor. Re-opening the doors delays the passengers already in the car, but may reduce the new passenger’s waiting time significantly.