Elevator group supervisory control using fuzzy logic

The paper describes the use of fuzzy logic in the scheduling of a group of elevators. A new “orbital” paradigm is introduced that offers a simple unified framework under which scheduling can be completed. The principle is to choose a configuration of elevator placements upon an “orbital circle” that best fits a number of fuzzy constraints. To our knowledge, fuzzy logic has traditionally been used to support the more established techniques, such as expert knowledge base approaches. Our system uses fuzzy logic alone to make non predetermined control decisions. The “fuzzy orbital” scheduler was implemented and simulation results illustrate the viability of this paradigm