文章基本信息

标题：Normal and Emergency Modes Using Group Elevator Scheduling With Advance Information
本地全文：下载
作者：K.Rajakumari ; C. Nalini
期刊名称：International Journal of Innovative Research in Computer and Communication Engineering
印刷版ISSN：2320-9798
电子版ISSN：2320-9801
出版年度：2014
卷号：2
期号：12
DOI：10.15680/ijircce.2014.0212091
出版社：S&S Publications
摘要：Scheduling a group of elevators in a building has long been recognized as an important issue to improve transportation efficiency, since elevator service ranks second after heating, ventilatio n an d air conditioning as the main complaints of building tenants. The problem, however, is difficult because of complicated elevator dynamics, uncertain traffic in various patterns, and the combinatorial nature of discrete optimization. With the advent of technologies, o ne important trend is to use advance information collected fro m devices such as destination entry, radio frequency identification and sensor networks to reduce uncertainties and improve efficiency. This paper implements the optimized scheduling of a group of elevators with destination entry and future traffic information for normal operations and coordinated emergency evacuation. To overcome the difficulties caused by traffic uncertainties, one important trend is introduced to explore advance information. Most of conventional elevators have simple up and down buttons for hall calls, and destinations are not known until passengers placed car calls from inside an elevator. This system has keypads to enter passenger destination floors, and destinations are know n in ad vance. The operation of the elevators will vary for different modes like normal and emergency modes. In the normal mode the lift in the nearest floor will move to the destination. The floors are identified through IR sensing. In the emergency situation where smoke is sensed in any of the floors all the lifts will mo ve to that particular floor. Movement of the lift in this mode will be faster compared to the normal mode. Time based Scheduling with Genetic algorithm and Nested partitions are used for the scheduling of the group of elevators.
关键词：Elevator Scheduling; Discrete Optimization; DC motor Driving Circuits; IR Sensors; LCD Display; VLSI Peripheral Bus