英语翻译A Fuzzy Approach to Elevator Group Control System Chang

英语翻译
A Fuzzy Approach to Elevator Group Control System Chang Bum Kim,Kyoung A.Seong,Hyung Lee-Kwang,Jeoug O.Kim,and Yong Bae Lim A/hm,act~The elevator group control systeam are the control systems Ikat manage systematically,three or more elevators in order to tly transport the passengers.In the elevator group control system,the area-weight which determines the lead biases of elevators is control perameter closely related to the system performance.This correspondence penposes a fuzzy model based melod to determine the area-weight.The proposed method uses a two-stage fuzzy inference model which is built by the study of area-weight properties ami expert knowledge.The proposed method shows more d--wir3ble results than the conventional method in simulations that use real traffic data.I.INTRODUCTION The elevator group control system is a.control system that manages systematically three or more elevators in a group to increase the service for passengers,and reduces the cost such as power con- sumption.Most of the elevator group control systems have used the hall call assignment method which assigns elevators in response to a passenger's call.In this case,the elevator group control system considers the current situation of a building to select the most appropriate elevator [19].The hall call assignment method assigns a new hall call to the elevator having the smallest evaluation function value among all the elevators.The area-weight is a parameter which affects the evaluation-function value of the elevators in the area close to the hall call.The area-weight is one of the most important variables in the evaluation function which affects the system performance.Some methods to obtain the area-weight ha A Fuzzy Approach to Elevator Group Control System A Fuzzy Approach to Elevator Group Control System A Fuzzy Approach to Elevator Group Control System A Fuzzy Approach to Elevator Group Control System ve been proposed in [20],[21],[22].[20] and [21] used the area-weight defined in advance according to passenger's traffic patterns.In [22],the area-weight is determined by simulation method.However these methods have some problems in determining the appropriate area-weight not only because of the system complexity,but also because of uncertain factors such as a passenger's arrival time on each floor,the destination floors of passengers and,the time for getting on and off elevators.In general,when the system complexity is high and the correct prediction of system state is not easy,it is difficult to make a correct model to control the system.Therefore,the approximation methods based on the fuzzy theory have been used [1],[10]-[14].