桥吊迁移的港口连续泊位分配问题在线算法-计算机系统应用.PDF

2015 年 第 24 卷 第 11 期 计 算 机 系 统 应 用 桥吊迁移的港口连续泊位分配问题在线算法① 1 1,2 仇 明 , 杨智应 1(上海海事大学 信息工程学院, 上海 201306) 2(复旦大学 计算机科学技术学院, 上海 200433) 摘 要: 集装箱码头资源的高效利用已被研究多年, 而多数是在预知所有船舶作业的相关信息(到港时间、船舶尺 寸等) 的离线情况下建模与计算. 现实中, 却因一些突发因素(如恶劣天气、设备故障等)使预知信息不可靠, 以至 原调度方案不可行, 从而降低港口作业效率及资源浪费. 故在桥吊可迁移的连续泊位分配模式下, 首次结合在线 算法思想, 提出泊位与桥吊调度的模型, 并设计相应的在线调度算法. 利用平滑分析方法给出算法的平滑竞争比, 实验证实算法可行性. 关键词: 集装箱码头; 泊位分配; 桥吊迁移; 在线算法; 平滑分析 Online Scheduling Algorithm of Continuous Berth and Quay Crane of Container Terminal With QCs Transfer 1 1,2 QIU Ming , YANG Zhi-Ying 1(College of Information Engineering, Shanghai Maritime University, Shanghai 201306, China) 2(College of computer science and technology, Fudan University, Shanghai 200433, China) Abstract: Container terminal resources efficiency have been studied for many years, however, most researches focused on offline algorithms which are given the whole problem data from the beginning. Due to some unforeseen factors(such as bad weather, equipment failure), the predict information is not reliable, these make the planned difficult to implement, and reduce the efficiency of port operations. So we are based on the idea of online algorithms and propose a optimization model of berth container terminal and bridge crane resource, and give a online scheduling algorithm for solving. We also analyzed the smoothed competitive ratio by the smooth analysis. Through the experiments confirmed the algorithm feasibility. Key words: container terminal; berth allocation; crane transfer; online algorithm; smoothed analysis 1 引言 在假设预知所有集装箱船舶装卸作业的相关信息(到 随着国际贸易的步伐加速, 自由贸易区的落沪, 港时间、箱量、船舶尺寸、吃水深度等) 的离线情况下 对国际物流提出了更高的新要求. 一切迫使集装箱码