Abstract:
The invention relates to a procedure for controlling an elevator group consisting of several elevators and related call devices. A control system for controlling the elevators controls each elevator in a manner determined by the calls entered and the existing control instructions. According to the invention, when the control system has to decide between two or more control alternatives, a systematic decision analysis is performed by studying the effects resulting from each alternative decision, said effects being estimated by simulating by a Monte-Carlo type method the future behaviour of the elevator system in the case of each alternative decision. To carry out the simulation, realizations are generated at random for the unknown quantities associated with the current state of the elevator system and for new external future events, and a control decision is made on the basis of the results of the decision analysis.
Abstract:
An elevator passenger traffic measuring system distributes passengers whose destination floors cannot be determined to each of origin-destination floor pairs in accordance with an elevator car position, an incoming passenger number and an outgoing passenger number at each floor, and registered car calls, using probability weights for the origin-destination floor pairs which are determined by previous traffic measurements. The system then estimates the number of passengers for each of the origin-destination floor pairs in accordance with the distributed passengers, and the passengers who moved the corresponding one of the origin-destination floor pairs.
Abstract:
According to an aspect, there is provided a method and an apparatus for determining an allocation decision for at least one elevator. In the solution existing calls are used in an elevator system as a first input in a machine learning module. The first input is processed with the machine learning module to provide a first output comprising a first allocation decision. The first output is then used as a second input in an iterative module. The second input is processed with the iterative module to provide a second output comprising a second allocation decision. The second allocation decision is provided to an elevator control module and to an allocation decision storage for further machine learning module training.
Abstract:
Provided are a group control method and a group control device capable of efficiently controlling the operation of elevators in diversified traffic situations and under a variety of specification conditions required for a group management system. A plurality of elevators are placed in service for a plurality of floors, an evaluation index for a newly made hall call is calculated, and the best suited car is selected and assigned to the hall call based on the evaluation index in the group control method of elevators. A waiting time expectation value of all passengers on all floors for each direction, either that have already occurred or that are expected to occur within a predetermined time period, is taken as the evaluation index, the waiting time expectation value being the expectation value for the sum or the average of waiting time.
Abstract:
The invention relates to a method for controlling an elevator system comprising at least one shaft (12,14) and several elevator cars. At least two elevator cars can travel upwards and downwards along a common travel path in a separate manner and a passenger can input a destination request by means of an input unit (77). The destination request is allocated to an elevator car according to an evaluation of said allocation. The aim of the invention is to develop the above method in such a way that transport capacity can be increased, causing minimum reciprocal disruption to the elevator cars travelling along a common travel path. According to the invention, when a destination request is allocated to one of the elevator cars (21,22) traveling along the common travel path, the section of the travel path section required to serve the travel request is allocated to said elevator car and allocation of the other elevator car is blocked during said period.