Abstract:
In a control device for double-deck elevator systems equipped with a plurality of elevators that have an upper deck and a lower deck that are conveyed simultaneously to two adjacent floors and that assign elevator decks to respond to boarding hall calls from each floor, to select the optimal deck for responding to boarding hall calls is selected from among all of the aforementioned decks to make elevator travel and passenger transport more efficient. A response suitability index is found from various elements-predicted response time to a boarding hall call by a deck, the likelihood ratio of said predicted response time, the effect on existing boarding hall calls by responding to the boarding hall call, the car space available for the deck, and the number of elevators resulting from response to the boarding hall calls Processing to find this response suitability index is performed for all the decks of multiple elevators, the deck that has the optimal response suitability index is determined from among them and an assignment is made.
Abstract:
An elevator control manages and controls elevators. The control efficiently minimizes the elevator service time to each floor by minimizing a standard deviation of the expected service time to various floors. The control continually monitors current elevator operation and adjusts the position of unused elevators to maintain quality and efficient elevator service by reducing user wait time.
Abstract:
An controlling apparatus for a double deck elevator is disclosed. An allocation control unit (5), when a predetermined specified floor is registered in an elevator hall call registering unit (4) in a double operation mode, makes both of upper and lower cages of each double deck elevator respond thereto. Each cage call registering unit (9) is capable of registering a cage call to both of the upper and lower cages in the double operation mode as far as the specified floor is concerned. An operation control unit (8) in each elevator controls operations of the upper and lower cages to respond to the elevator hall call to the specified floor which is allocated by the allocation control unit (5) and to a cage call to the specified floor which is registered in the cage call registering unit (9).
Abstract:
A elevator system including a group controller for controlling the dispatching of elevator cars to the lobby. The group controller predicts lobby single source traffic for short periods. When the predicted traffic is below certain limit, cars are assigned to a lobby hall call on demand after hall call registration. When the predicted traffic is above certain limit, cars are assigned to the lobby hall call at intervals. Accordingly, car assignment is scheduled at those intervals. The traffic threshold at which the scheduled mode is activated and the traffic threshold at which it is deactivated is learned by the system. The schedule interval is varied based on predicted traffic and predicted round trip time of the cars. The number of cars assigned and sent to the lobby is varied based on predicted traffic. In order to avoid oscillations in selecting the service mode, proper delays are used to activate and deactivate the scheduled service.
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:
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; a closed loop fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate and in response to an elevator control system output variable, the closed loop fuzzy logic controller having membership functions for fuzzy sets of the control parameter; an adaptive controller for modifying the membership functions of the fuzzy sets of the control parameter in response to the elevator control system output variable; 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 system for up-peak servicing of a building having a dual lobby. The system includes a controller having an electronic processor coupled to a memory; a plurality of elevator cars controllably connected to the controller, a dual lobby routine stored within the memory, the dual lobby routine includes instructions for dispatching at least one of the elevator cars to a lower lobby during up-peak, indicating a sector assigned to the car, nudging (if needed) the car if a lower lobby time-out is exceeded, dispatching the car to the upper lobby if a load weight threshold is not exceeded, and then indicating the sector assigned to the car while the car is located at the upper lobby.
Abstract:
The invention relates to a procedure for controlling an elevator group. According to the invention, the landing calls issued from different floors are weighted by a floor-specific weight factor. The weighted call time is utilized in the calculation of the serving time of the calls and for the selection of the best elevator to serve a landing call.
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:
An automated arrangement selects one of a plurality of load weight bypass thresholds for an elevator car. The selection depends, for example, upon the car direction and the time of day. Alternative embodiments of the arrangement utilize in the selection either actual or estimated elevator car floor space. Fuzzy logic is used to estimate available floor space.