Abstract:
A set of cars in an elevator system are scheduled by assigning passengers to the cars such that a current schedule for each car does not exceed a predetermined maximum number of stops per round trip, and the car is filled as near as possible to a maximum capacity at a predetermined bottleneck.
Abstract:
The invention relates to a solution for the allocation of destination calls in an elevator system comprising one or more single-deck elevators and one or more multi-deck elevators, in which system the passenger enters a destination call via a destination call device. The destination call entered by the passenger is received, an elevator type to serve the destination call is selected on the basis of an elevator type selection criterion, and the destination call is allocated to an elevator consistent with the elevator type thus selected.
Abstract:
An elevator operation system and apparatus reduce the round trip time of an elevator, by determining a target floor that corresponds to the destination floor requested by a passenger; and assigning the target floor to one of a plurality of elevators for service exclusively to the target floor.
Abstract:
An elevator car equalization computer program product includes software instructions for enabling a computer to perform predetermined operations, a computer readable medium bearing the software instructions, and a computer system including a processor and a memory. The predetermined operations include the steps of: (a) receiving at least one user input from at least one data input terminal; (b) determining a location of an originating demand unique to each of the user inputs; (c) determining a location of a destination demand unique to each of the user inputs; (d) calculating a total number of the user inputs received within a predetermined time interval; (e) determining whether the total number of user inputs is less than or more than a total number of available elevators; (f) assigning an elevator to each of the locations of the originating demand; and (g) forming temporary call response zones based upon the elevator assignments. The present system provides shorter average waits, transfer times, trip times, round trip times and equipment use.
Abstract:
The invention concerns a method for controlling the elevators in an elevator group when destination floor call input is used and the traffic within the elevator group is to be optimized. According to the inventive concept of the method, based on traffic intensity, a cost function is optimized by changing the number of cost criteria from one to several and back and weighting the criteria in different ways in the aforesaid cost function.
Abstract:
The invention relates to a method for controlling an elevator installation with at least one shaft and a number of cars, it being possible to make at least two cars travel separately up and down along a common traveling path and a passenger being able to enter a destination call by means of an input unit disposed outside the shaft and the destination call being allocated to a car in dependence on an allocation assessment. To develop the method in such a way that the transporting capacity can be increased, with the cars which can be made to travel along a common traveling path hindering one another as little as possible, it is proposed according to the invention that, in the case of allocation of the destination call to one of the cars which can be made to travel along the common traveling path, the portion of the traveling path required for serving the destination call is assigned to this car and blocked for the time of the assignment for the other cars. Furthermore, an elevator installation for carrying out the method is proposed.
Abstract:
A group elevator control includes a call allocation device which automatically adapts to optimization criteria and traffic conditions so that an optimum call assignment is achieved. The device includes a solution selection module which calculates starting from a first time predetermined solution, further possible solutions for the call assignment which are fed to a simulator module. A traffic model module supplies possible passenger number and destination floor data to the simulator from which is generated factors data for the solutions, the factors data relating to passengers and/or elevator components. The factors data is fed to a calculation module, which uses a calculation function and optimization criteria data from the elevator control to generate another call allocation solution to the solution selection module which compares each another call allocation solution with the previous best solution to select the best of all possible solutions for the call allocation.
Abstract:
A method and apparatus for the control of the dispatch of elevator cars from the main floor are implemented in a plurality of algorithms performed by a process computer. A first algorithm for an elevator group receives data representing the measured arriving and departing building filling passenger traffic from sensors. The first algorithm determines the traffic requirements and the actual departure load of the elevator group from this data and various constants, and determines the transport capacity of the elevator group. The transport capacity is assigned to second algorithms associated with the elevator cars and corresponding to the nominal load of each respective car. Based upon the assigned transport capacity and the round trip time of the respective elevator car, the second algorithm calculates the nominal departure load. Dependent on the nominal departure load and the actual departure load, the second algorithm calculates a corrected departure load with which the elevator car should be loaded.
Abstract:
Modern large buildings and public places are equipped with a plurality of elevators, exits and points of interest for fluent movement. The passenger flows in a building or public place can be traced and modelled by using statistics and information regarding current state of the modelled building or public place. The information derived from this model can be used for controlling elevators, escalators and similar in the building more efficiently. The same information may be used also for guiding passengers in the building or public place to use other transportation means so that the duration high traffic situation can be reduced or sometimes completely avoided.
Abstract:
According to an example embodiment there is provided a method for allocating an elevator in an elevator system. The method comprises constructing passenger batch size distributions (100) for each pair of floors in a building based on passenger batch journeys, each passenger batch journey defining at least the origin and destination floor of the journey, the number of passengers relating to the journey and the time of the journey; receiving a call for an elevator (102); estimating the number of passengers waiting behind the call (104) based on the passenger batch size distributions; and allocating the call to an elevator being able to serve the estimated number of passengers (106).