An elevator has a plurality of cars movable along different vertical axes between building floors and a sensor system providing sensor data indicative of the elevator current state. An elevator control method includes: receiving the sensor data including current position of each car relative to the floors, list of assigned current calls and a new call for assignment each indicating a destination floor; generating a list of eligible cars using the sensor data and at least one rule with which each car should comply when fulfilling the new call; inputting the sensor data as input data into an artificial neural network trained to convert the input data into one output value for each car indicating a probability and/or tendency for assignment of the car to the new call; determining one of the eligible cars as a selected car using the output values; assigning the new call to the selected car.

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 autonomous mobile method for an autonomous mobile device according to the present embodiment is an autonomous mobile method for an autonomous mobile device that autonomously moves in a facility provided with an elevator. When the total number of the autonomous mobile devices including other autonomous mobile devices in a car of the elevator is larger than a threshold that is a plural number, an operation mode of the car is switched from a general mode in which a human is allowed to enter the car to a dedicated mode in which the human is prohibited from entering the car.

A method for positioning a plurality of elevator cars that includes determining an occupant count for each of a plurality of locations, by determining the number of occupants exiting the plurality of elevator cars at each of the plurality of locations and the number of occupants entering the plurality of elevator cars from each of the plurality of locations. The method includes moving at least one of the plurality of elevator cars to a first location with a total occupant count that is greater than the occupant count at each respective location of the plurality of locations when the at least one of the plurality of elevator cars is in an inactive state.

According to an aspect, there is provided a control device. The control device is configured to receive data from a passenger traffic system configured in a building, the data comprising information associated with operations for transferring passengers of the passenger traffic system; based on the received data, monitor a change in a quality of service level of the passenger traffic system in transferring the passengers and a change in a passenger traffic pattern in transferring the passengers in the passenger traffic system; and in response to detecting the change in the service level or in the passenger traffic pattern, run one or more simulations of the passenger traffic in the passenger traffic system in the at least one building using the received data in order to trigger at least one operation to change a configuration of the passenger traffic system.

The invention relates to a method for controlling an elevator. In the method at least one control signal is generated for instructing the at least one mobile robot to a predetermined position. The at least one mobile robot generates at least one control signal to the elevator controller for controlling an elevator in response to an interaction with at least one user in the predetermined position. The invention also relates to an elevator system and a mobile robot implementing at least portions of the method.

According to an aspect, there is provided a control device. The control device is configured to receive data from a passenger traffic system configured in a building, the data comprising information associated with operations for transferring passengers of the passenger traffic system; based on the received data, monitor a change in a quality of service level of the passenger traffic system in transferring the passengers and a change in a passenger traffic pattern in transferring the passengers in the passenger traffic system; and in response to detecting the change in the service level or in the passenger traffic pattern, run one or more simulations of the passenger traffic in the passenger traffic system in the at least one building using the received data in order to trigger at least one operation to change a configuration of the passenger traffic system.

An elevator system drive includes: an electric machine: a first converter electrically connected to an alternating current source and the electric machine: a drive controller controlling the drive: a drive safety circuit unit electrically connected to a safety circuit of the elevator system, to a controller of the elevator system, and to the drive controller; and at least one mechanical brake that is closed by a brake closing command from the elevator system controller. The drive safety circuit unit operates in a first operating state wherein it transmits an emergency stop command coming from the elevator system safety circuit directly and without delay to the first converter, and operates in a second operating state wherein it relays a modified emergency stop command coming from the elevator system safety circuit, with a delay, to the first converter to ensure safe braking of the elevator system even if the mechanical brakes fail.