Elevator – industrial lift truck – or stationary lift for vehicle – Having independent supports carrying distinct loads and...
Reexamination Certificate
2008-06-24
2008-06-24
Salata, Jonathan (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
Having independent supports carrying distinct loads and...
C187S382000
Reexamination Certificate
active
07389857
ABSTRACT:
An elevator group control apparatus to control an elevator system in which an upper car and a lower car serve in a single shaft and go up and down independently. If a new destination call is registered, a car travel range calculator provisionally assigns a car to the new destination call and calculates the travel range of the provisionally assigned car and the travel range of the other car in the same shaft. Based on the calculated travel ranges, an assignment candidate selector selects or rejects the car as a candidate for assignment to the new destination call. Later, several evaluation index values are calculated for each of the selected candidate cars. By comprehensively evaluating these calculated evaluation index values, a determination is made as to which car is to be assigned to the new destination call.
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Atsuya Fujino et al., “Basis Study on Mass Transportation Systems in Building by Means of Multiple-cage Elevators”, T.IEE Japan, vol. 117-D, No. 9, '97, pp. 815-822.
Leydig , Voit & Mayer, Ltd.
Mitsubishi Denki & Kabushiki Kaisha
Salata Jonathan
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