Patent ID: 7152714
Filing Date: 2006-12-26
Classification: B66B

Abstract:
1. A method of determining a separation matrix for each of a plurality of elevator cars serving a plurality of landings in a building, comprising: (a) for each hall call in either the up direction or the down direction which is registered at any of the landings, determining ( characterized by: (b) organizing the times determined in step (a) in a sequence of categories ( (c) at least some of said categories being provided with corresponding fuzzy set complexes ( (d) determining, for each of said categories, the membership in said corresponding fuzzy set; (e) providing a membership combination of the non-zero memberships of all of said fuzzy sets by fuzzy ANDing them together, which comprises multiplying them; (f) providing a matrix of as many dimensions as there are categories and determining from the non-zero memberships, a relationship value indicated by said matrix; and (g) multiplying the membership combination value by the corresponding relationship value to determine the separation metric.