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:
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 intelligent destination elevator control system streamlines the efficiency and control of destination elevators. The system monitors a building's population and predicts elevator traffic conditions. The system may monitor attributes of the destination elevators. Based on the monitored data, the system may generate a data structure that renders time-tables and target elevator service quality parameters that may control the destination elevators. A time¬ table and target elevator service quality parameters may be selected to control destination elevators according to one or more customer selectable mode of operation parameters. The data structure may be processed to control UP and/or DOWN transportation capacities of the destination elevators while satisfying the one or more customer selectable mode of operation parameters. Some intelligent destination elevator control systems may control when elevator cars of a group service the floors of a building. Control of the elevator cars may be flexible to allow the system to increase or decrease traffic capacities of the elevator cars in accordance with anticipated traffic conditions.
Abstract:
Disclosed is a robot interlocking elevator control system. The robot interlocking elevator control system provides countermeasures against failure modes in a boarding/alighting procedure of a robot with respect to an elevator for movement between floors in a building, thereby achieving significant improvement in overall service quality and operation efficiency of an elevator system controlled in conjunction with the robot without delay of a passenger 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; 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; 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 an elevator dispatcher for controlling the operation of the elevator cars during single source traffic conditions, the elevator dispatcher having a constraint for limiting car assignments in response to the constraint; and an adaptive contraint generator for modifying a value of the constraint in response to an elevator control system output variable. In one embodiment, the group controller includes a traffic and traffic rate estimator for providing fuzzy estimates of traffic and traffic rate; a fuzzy logic controller for providing a control parameter in response to the fuzzy estimates of traffic and traffic rate, the control parameter having a constraint for limiting a value of the control parameter; an adaptive constraint generator for modifying a value of the constraint in response to an 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 including supervisory system control for controlling a plurality of elevator cars to answer calls for elevator service. The supervisory system control, using information provided by the cars, groups the floors of a building, and service directions therefrom, into sets, each of which indicates those floors and service directions served by the same combination of in-service elevator cars. The supervisory system control periodically determines, for each set, the average number of floors and service directions therefrom, and the average number of calls, per in-service elevator car serving the set. The supervisory system control then assigns floors and service directions therefrom to the cars, using these averages, to substantially equally distribute the floors, and service directions therefrom, for each set, among the elevator cars serving the set, as well as to substantially equally distribute the calls for elevator service among the elevator cars.
Abstract:
A plural elevator system having a group controller 17 for controlling the joint response of a plurality of elevator cars 3,4 to the needs of a building, employs a microprocessor- based group controller 17 for providing up peak, down peak and other zone-controlled elevator functions. The group controller provides a variable interval between dispatching of elevator cars from the lobby during up peak, the dispatching interval being controlled by the approximate round trip time of an elevator being dispatched from the lobby in serving the car calls registered within it and returning to the lobby, or the average of the approximate round trip times for two or three most recently dispatched elevator cars. The dispatching interval is determined by the approximate round trip time divided by the number of elevator cars serving the up peak traffic. In addition, the dispatching interval can be further reduced in dependence upon the number of cars standing at the lobby, the reduction being greater in case the last car leaving the lobby is not more than half full than in the case when the last car leaving the lobby is more than half full.
Abstract:
A method of controlling an intelligent destination elevator control system streamlines the control of two or more destination elevators. Operations of a group of destination elevators are monitored to gain experience about how the population is served by the group of destination elevators that serves a building or a building zone. The analysis of measured and/or modeled data and conditions with data about traffic patterns and traffic characteristics enables the system to dynamically control the destination elevators. The system may enhance passengers' experience through efficiency and/or with an improved comfort level.