Design and implementation of a fuzzy elevator group control system

Elevator group control systems (EGCS's) are the control systems that systematically manage three or more elevators in order to efficiently transport passengers. Most EGCS's have used the hall call assignment method to assign elevators in response to passengers' calls. This paper proposes a control strategy generation method, a hall call assignment method based on the fuzzy theory, and then the fuzzy elevator group control system (FEGCS). The control strategy of FEGCS is made using the classification of the passenger traffic and system manager's requirements, and the hall calls are assigned to suitable elevators by the generated control strategy. The system is operated using the given control strategy which is defined by the system manager. The proposed system shows better results than the conventional methods in simulations and is under commercialization by an industrial company.