A method for determining the parameters connected to the run times of elevators and for using said parameters in the control of the elevators in an elevator system includes selecting a plurality of floor pairs from a plurality of floors served by the elevators; measuring runs between the selected floor pairs with one or more elevators; registering run events connected to the measured runs; determining, on the basis of the run events, a plurality of run time parameters connected to the run times; and controlling the elevators based on the aforementioned run time parameters when the elevators are in transport operation.

Elevator system passengers are transported in one or more of a plurality of elevator cars. The elevator cars can require different amounts of energy to operate. Passenger trips can be allocated to one car or another car based on the expected energy consumption for the trips in one or the other car.

A method for allocating elevators in an elevator system, the elevator system including a group control system responsive to hall calls received from call input devices, and elevator-specific elevator controllers configured to control elevators based on commands issued by the group control system, wherein the method including generating a number of route alternatives based on calls active; calculating, by the elevator controllers, elevator-specific cost terms associated with the route alternatives; transmitting, by the elevator controllers, the cost terms to the group control system; and allocating, by the group control system, the hall calls to the elevators according to the route alternative giving the lowest allocation cost.

A method of allocating calls of a lift installation with at least one lift and at least one car per lift to move passengers in a journey from at least one input floor to at least one destination floor, a system for executing the method and a computer readable memory with instructions for executing the method. The method includes receiving input calls from passengers travelling from an input floor to a destination floor, each call identifying at least one floor as an input floor or a destination floor. A start zone with identified input floors and a destination zone with identified destination floors are determined from the input calls and destination calls. Each identified floor within a corresponding zone is considered using at least one selection criterion and a stopping floor is selected which satisfies the criterion. The car is caused to stop at fewer than all the identified input floors and identified destination floors during the journey.

Apparatuses, methods and computer programs for elevator call allocation with adaptive multi-objective optimization are disclosed. At least some of the disclosed embodiments may allow adaptively and smoothly changing an objective function according to passenger traffic. This in turn may allow minimizing waiting times in all traffic situations compared to using a fixed objective function. Furthermore, at least some of the disclosed embodiments may allow adaptively and smoothly changing the objective function according to the traffic while taking user preferences into consideration via a single transit time target parameter.

An information processing apparatus includes a controller configured to predict a state of congestion of an elevator installed in a building and generate, based on the predicted state of congestion, a proposal message to propose a departure time for the building to a user planning to travel to the building.

To provide an elevator group management device that can accurately present information about learning of operational efficiency of an elevator. The elevator group management device includes a traffic-flow estimating unit configured to estimate a traffic flow based on boarding and alighting floors of users and a number of boarding and alighting people of an elevator, a learning unit configured to determine a policy of running of a car based on the traffic flow estimated by the traffic-flow estimating unit, a simulation unit configured to evaluate operational efficiency at the time when the car is virtually run based on the policy determined by the learning unit, and a display control unit configured to cause an information display device to display information indicating a status of learning by the learning unit and the simulation unit.