Abstract:
The present invention provides a method and apparatus for use in elevator systems for assigning new hall calls to one of a plurality of available elevator cars. The method comprises calculating for each car a call cost for accepting the new hall call. The call cost is a function of the estimated time to the desired destination of the passenger requesting the new hall call and of the delay that other passagers who are using the elevator car will experience. In one embodiment, a destination is inferred for the passenger requesting the new hall call. In another embodiment, the passenger requesting the hall call may input a desired destination at the time the hall call request is made. The elevator system of the present invention allows for use of both standard up/down hall call entry devices and destination entry devices that allow a particular destination to be entered by a passenger at the time a hall call is requested.
Abstract:
The present invention provides a method and apparatus for use in elevator systems for assigning new hall calls to one of a plurality of available elevator cars. The method comprises calculating for each car a call cost for accepting the new hall call. The call cost is a function of the estimated time to the desired destination of the passenger requesting the new hall call and of the delay that other passagers who are using the elevator car will experience. In one embodiment, a destination is inferred for the passenger requesting the new hall call. In another embodiment, the passenger requesting the hall call may input a desired destination at the time the hall call request is made. The elevator system of the present invention allows for use of both standard up/down hall call entry devices and destination entry devices that allow a particular destination to be entered by a passenger at the time a hall call is requested.
Abstract:
A system for controlling elevator cars in a building having a plurality of floors includes a group controller for controlling operation of the elevator cars. The group controller predicts lobby single source traffic for determined periods. When the predicted traffic is below a certain limit, cars are assigned to a lobby hall call on demand after hall call registration. When the predicted traffic is above a certain limit, cars are assigned to the lobby hall call at intervals. Accordingly, car assignment is scheduled at those intervals. The schedule interval is varied based on predicted traffic and predicted round trip time of the cars. The cars are assigned to hall calls if they arrive within a schedule window. The schedule window comprises a lower and an upper tolerance that are selected around a scheduled time.
Abstract:
The invention concerns a method for a passenger-allocation in a multi-deck elevator group, the decks of which defining elevator cars, respectively, being stacked above each other and being mounted in a car frame to be moved synchronously in an elevator shaft. The method is performed by a control unit to dispatch the elevator cars for serving any passenger call which can be entered as a landing call or a car call, wherein a call can create a number of allocation proposals calculated by means of an optimization algorithm carried out by the control unit for dispatching an elevator to a passenger call. The invention is characterized in that said allocation proposals are then processed in a routing algorithm defining one serving deck to be taken for the allocation of a specific call, which routing algorithm is restarted either for any further incoming call independent of whether said further incoming call is creating new elevator allocation proposal(s) or when a reallocation timeout has passed. The invention further relates to a computer program carrying out the inventive method.
Abstract:
A group management controller of elevators which can control a special call operation efficiently even with a double deck elevator. The group management controller (10) of elevators for controlling a plurality of double deck elevators comprises a general call input means (3), a general call assignment control means (4) for evaluating/operating the results obtained by assigning an inputted general call to the upper and lower cages of a plurality of elevators and performing control to let a cage having the best evaluation value respond to a landing floor call, a special call input means (5) consisting of special call buttons (2) which can be used only by special users, a special call response control means (6) performing control such that a special call is assigned to an elevator having any one of empty upper and lower cage which can respond to an inputted special call earliest or to a predetermined special elevator, and a general call assignment alteration means (7) for reassigning a general call already assigned to the upper and lower cages of a specific elevator newly assigned with a special call to an other elevator thus limiting a new assignment.
Abstract:
An elevator group comprising at least two elevator cars (Car1, Car2) is controlled using a group control unit which allocates the calls to different elevators. Based on statistical data and/or statistical forecasts, a virtual passenger traffic is generated and simulation is applied to create events in the virtual passenger traffic, on the basis of which an elevator-specific cost is computed for each call to be allocated. Based on the costs, the best elevator is selected to serve the call.
Abstract:
A group controller for controlling elevator cars in a building having a plurality of floors includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; an open loop fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate; and an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions in response to the control parameter.
Abstract:
An elevator group control device and an elevator group control method can eliminate congestion caused by stoppage, jam or deadlock in a vertical and horizontal movement type elevator system. The vertical and horizontal movement type elevator system controls running of a plurality of cages capable of vertically moving in a plurality of shafts and horizontally moving between the shafts. In the system, path data are stored for each of the cages, target floor data including target floors are produced on the basis of call data obtained correspondingly to the respective cages and platform call data obtained correspondingly to the respective floors, periods of time required for the cages to arrive at the target floor is predicted on the basis of the path data, target floor data, call data and cage data indicative of positions of the respective cages, and predetermined cages are allotted to predetermined platform calls on the basis of the predicted arrival time.