基于排队论的单车厅立体车库运行效率分析
2016-12-03刘日李建国梁英
刘日+李建国+梁英



摘 要:利用排队论为理论工具,给出平均等待时间、平均等待队长、拥堵率、顾客流失率等单车厅平面移动式立体车库运行效率的几种指标。在先到先服务和出车优先原则下,分析单车厅平面移动式立体车库排队系统中顾客的等待时间和等待队长的概率分布。在此基础上建立模型并设计仿真程序进行仿真。根据仿真运行结果分析了该原则特定参数下车库的运行效率,并提出改善运行效率的解决方向,为分析实际中车库的运行情况能否满足顾客需求以及车库的规划和建设提供参考。
关键词:排队论;立体车库;效率
中图分类号:F506 文献标识码:A
Abstract: With the tool of queuing theory, it makes several indicators such as average waitingtime, average waiting queue, congestion rate, loss rate and so on which are about how to analyse the efficiency of the single-hall cubic-parking system. Under the principle of first come first serve and prior to delivery of cargo from storage, it makes probability distribution of both the waiting time and waiting queue of the single-hall stereo garage system. On this basis, it builds model to conduct simulation with program.According to the simulation results, it puts forward the solution direction to improve the running efficiency of the stereo garage,providing reference for analysis of the actual operation to meet customer needs and construction of the garage.
Key words: queuing theory; stereo garage; efficiency
0 引 言
经济社会和科技水平的发展与提高带来汽车数量的激增,使我国大中城市面临越来越多停车难和取车难的问题。在解决这一难题的众多方案中,立体停车库受到认可和重视。国内外学者对立体车库的研究多侧重于车库系统的设计和实现、车库存取策略选择等方面。Riccardo Accorsi(2014)对车库设计与管理决策系统进行了研究[1],Jason chao-Asien Pan(2015)对车库存储分配启发方法进行了研究[2],李剑锋(2015)对车库存取调度进行了优化[3],衡蜓(2016)对基于PLC的智能立体车库控制系统的设计进行了分析[4]。涉及到立体车库运行效率的研究相对较少。本文利用排队论为理论依据,研究现实中基于先到先服务和出车优先原则下单车厅平面移动式立体车库运行效率[5],给出效率评估的几种指标,编程设计仿真程序,得到不同参数下的仿真结果。……
