Computing allocation decisions in an elevator system

An elevator control apparatus for computing allocation decisions in an elevator system that uses immediate call allocation, the apparatus comprising:

• at least one processor;
• and
• at least one memory connected to the at least one processor,
• wherein the at least one memory stores program instructions that, when executed by the at least one processor, cause the apparatus to:
• obtain historical passenger batch journey data relating to the elevator system, wherein each passenger batch journey comprises historical, realized date about origin and destination floors of past journeys, a number of passengers of the past journeys and time of the past journeys, within a predetermined day cycle;
• construct historical passenger traffic statistics based on the passenger batch journey data;
• model expected calls in the future based on the historical passenger traffic statistics;
• receive at least one call;
• and
• take at least one modelled expected call into account as a received call in computing allocation decisions for the at least one call in the elevator system.

A method for computing allocation decisions in an elevator system that uses immediate call allocation, the method comprising the steps of:

• obtaining historical passenger batch journey data relating to the elevator system, wherein each passenger batch journey comprises an origin and a destination floor of the journey, the number of passengers of the journey and the time of the journey;
• constructing historical passenger traffic statistics based on the passenger batch journey data;
• modelling expected calls in the future based on the historical passenger traffic statistics;
• receiving at least one call;
• and
• taking at least one modelled expected call into account as a received call in computing allocation decisions for the at least one call in the elevator system;
• estimating elevator load in elevators of the elevator system separately for each elevator trip based on passenger batch journey intensities and batch size distributions obtained from the historical passenger traffic statistics, and simulated service times;
• and
• taking the estimated elevator load into account in computing subsequent allocation decisions in the elevator system.