Abstract
The elevator group control system (EGCS) is a control system that manages multiple elevators in a building to efficiently transport the passengers. This chapter demonstrates three applications of fuzzy theory to elevator group control systems; (1) a fuzzy approach to EGCS to determine the area weight, which is a weighting factor, and (2) the fuzzy classification method of passenger traffic, and (3) a hall call assignment method employing fuzzy theory. In this chapter, the EGCS is introduced as a way to schedule elevators by passenger hall calls. Techniques and applications of fuzzy theory to the elevator group control system are introduced. The chapter also presents several evaluation criteria that are used to estimate the performance of the EGCS, such as average waiting time, the percentage of passengers waiting more than 60s, and power consumption are the most important criteria of EGCS. A study of hall call assignment is also presented, in which the structure of hall call assignment and the effects of input variables is studies. However, hall calls are assigned according to the results of fuzzy inferencing using input variables.
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