Abstract:
Provided is an elevator control apparatus in a building in which a plurality of elevators are installed, the apparatus including: a congestion information detecting means (1B1) for detecting a landing area congestion state at each story floor and in each operating direction of all the elevators and generating congestion degree information about the entire building based on the landing area congestion state; a service state detecting means (1B2) for measuring waiting time for landing area call registrations at all the elevators, calculating an average value of the waiting time, and generating service state information about the entire building based on the average value; and a guidance display means (1B3) for displaying the congestion degree information and the service state information.
Abstract:
A method for allocating destination calls in an elevator system, the system including at least one multi-deck elevator, where the passenger gives his/her destination floor by means of a destination call device at the beginning of the journey route, thereby defining the starting point and final point of the passenger's journey route in the elevator system. The method includes the steps of generating possible route alternatives from the starting point to the final point of the journey route, determining a cost function containing at least one travel time term, determining the value of the travel time term corresponding to each route alternative in the cost function, calculating the total cost of each route alternative by using the cost function, allocating for the passenger the route alternative that gives the minimum total cost, and guiding the passenger to a waiting lobby and/or elevator consistent with the route alternative allocated.
Abstract:
The present invention discloses an extension to a prior-art genetic algorithm, with which the routing of elevators based on the calls given in an elevator system is formed. A new type of gene, a so-called run type gene, is connected to the chromosome of the genetic algorithm according to the invention, with which gene the desired speed profile for the elevator trip can be set. In this way e.g. an upper limit can be set for the acceleration or for the maximum travel speed of the elevator. By means of the run type gene a kinetic energy term is included in the optimization. The energy consumed by the system can thus be minimized more effectively by means of the algorithm, because the varying travel speeds of the elevators create more freedom of choice for the chromosomes of the algorithm.
Abstract:
An elevator traffic flow control strategy utilizes the advantages of sector assignment channeling and destination entry systems. A controller (30) monitors a handling capacity (62) of the system to determine when it is advisable to override the sector assignments (52) to provide improved passenger service.
Abstract:
A control system for elevators controls the operations of a plurality of elevator apparatuses. The elevator apparatuses have cars and elevator doorways provided at each landing floor. The control system for the elevators is equipped with a landing call registration device, a landing call automatic registration portion, a response selection portion, a passenger traveling time period calculation portion, and an opening/closing control portion. The landing call registration device is provided at the landing floor to be operable at the landing floor. The landing call automatic registration portion sets as a car call floor the landing floor whose landing call registration device is operated, and makes a car call registration for stopping one of the cars at the car call floor. The response selection portion selects as a selected elevator that one of the elevator apparatuses which responds to the car call registration, based on information from the elevator apparatuses and information from the landing call automatic registration portion. The passenger traveling time period calculation portion sets as a selected doorway that one of the elevator doorways of the selected elevator, which is provided at the car call floor, based on information from the response selection portion, and calculates a passenger traveling time period corresponding to the selected doorway. The opening/closing control portion controls opening/closing operations of the selected doorway based on information from the selected elevator and information from the passenger traveling time period calculation portion.
Abstract:
The present invention discloses a method for optimal routing of the elevators in an elevator system in a situation where the supply power received by the system is limited e.g. due to emergency power operation. In the invention, routes are optimized by using a cost function to which has been added a term containing the summed instantaneous power consumed. Power consumption is monitored in real time, and the elevators need a start permission from the control system. A route alternative that exceeds the power limit is penalized in the cost function by a so-called penal term. With the elevator routing obtained as a result, the instantaneous power consumed by the system remains continuously below the set power limit. Some call can thus be postponed to be served later. By the method of the invention, the number of elevators serving passengers in an emergency power situation can be varied dynamically.
Abstract:
An operation control method of plural elevators working between many floors is constructed so that a risk floor having a high probability that a long wait occurs is selected from among floors on which a platform call is not generated when a platform call is newly generated, assuming that along with the newly generated platform call a platform call is generated on the risk floor, allocation evaluations are made on the cases of allocating respective elevators to render services to these calls, an elevator to respond to the new platform call is decided based on the allocation evaluation result, and the plural elevators are controlled to be operated based on this decision.
Abstract:
A method controls 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 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:
A method schedules cars of an elevator system in a building. The method begins execution whenever a newly arrived passenger presses an up or down button to generate a call for service. For each car, determine a first waiting time for all existing passengers if the car is assigned to service the call, based on future states of the elevator system. For each car, determine a second waiting time of future passengers if the car is assigned to service the call, based on a landing pattern of the cars. For each car, combine the first and second waiting times to produce an adjusted waiting time, The method ends by assigning a particular car having a lowest adjusted waiting time to service the call and minimize an average waiting time of all passengers.
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.