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With the society development, high-rise intelligent building becomes more and morepopular. The traffic capacity of the elevators in the high-rise intelligent building plays a veryimportant role in these buildings. In order to improve the traffic capacity, Single elevator hasbeen replaced by the multiple elvevators in these high-rise intelligent buildings. How toimplement the optimal control of the multiple elvevators is an importatnt and interestingproblem, and has attarct more and more attention.There are some complex characteristics in the the optimal control of the multipleelvevators, including difficulties of the accruate model, randomdisturbance, uncertainty, andso on. In this dissertation, the fuzzy optimal control method of the multiple elvevators isproposed, and the control system is also developed. The main research contents are shown asfollows:(1)The fuzzy optimal control method of the multiple elvevators is proposed. At first, theimproved comprehensive evaluation function is designed. In the improved evaluation function,some key variables are fully considered, including the low average waiting time, the lowaverage riding time, the low long-time waiting percent. Finaly, fuzzy reasoning rules areutilized to realize the optimal control of the the multiple elvevators.(2)Using Rockwell PLC, the control system of the multiple elevators is developed. Themain control programe is composed of elevator configuration module, elevator operationinspection module, elevators direction module, lights mark module, elevator door switchmodule, elevator group control dispatching module. Experimental results show that thedesigned control system has the satisfactory performance, and the basic and main functions ofthe elevator group control system is realzied.
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