Patent ID: 6776264
Filing Date: 2004-08-17
Classification: B66B,G06N

Abstract:
Method for allocating calls issued by means of the landing call devices of the elevators in an elevator group, in which method the allocation of landing calls comprises the steps of:forming a set of allocation options, i.e. chromosomes, each of which contains call data and elevator data for each landing call currently active, determining a fitness function value for each chromosome, and selecting the best chromosome on the basis of a termination criterion and assigning the landing calls according to this chromosome, to be served by the elevators in the elevator group, and characterized in that, when landing call allocation is repeated, as the set of chromosomes is being formed, the best chromosome selected in a previous instance of allocation is added to the set of chromosomes to direct the selection result towards the previously selected best chromosome when the starting conditions of allocation are substantially unchanged.