Dynamic elevator car dispatching during an elevator system modernization

摘要

A method for handling passenger requests during an elevator system modernization that includes modernizing elevator cars 22, 24, 26, 28, 30, 32 over time such that the modernized elevator cars are capable of servicing destination requests placed outside of an elevator car e.g. at destination entry devices 44, that include an indication of a desired destination comprises the steps of assigning an elevator car to respond to a new pending destination request according to a selected criterion for selecting between a modernized elevator car and an elevator car that has not yet been modernized and automatically updating the selected criterion responsive to a change in a number of modernized elevator cars, where the system includes a cross dispatcher 54 that converts a destination request to a hall call request to be handled by an elevator car that is not yet modernized, wherein the selected criterion comprises the cross dispatcher being eligible to receive the new pending destination request and the method comprises determining whether the cross dispatcher is eligible to receive the new pending destination request by determining (i) that there is at least one elevator car that has not yet been modernized, (ii) that the source floor of the new pending request can be serviced by an elevator car that has not yet been modernized, and (iii) that the destination floor of the new pending request can be serviced by an elevator car that has not yet been modernized; and assigning the new pending request to a modernized elevator car if the cross dispatcher is not eligible.