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首页> 外文期刊>Journal of Intelligent Manufacturing >Comparison of operations of AGVs and ALVs in an automated container terminal
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Comparison of operations of AGVs and ALVs in an automated container terminal

机译：自动集装箱码头中AGV和ALV的操作比较

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摘要

In an automated container terminal, the automated guided vehicles (AGVs) and the automated lifting vehicles (ALVs) are the most popular candidates to be used for transporting containers between the quayside and the storage yard. In this paper, we compare the operational productivities of the two types of vehicles when used in combination with the quay cranes of various performances. We assume a flexible path layout in which the vehicles can move almost freely in any vertical and horizontal directions. The traffic control scheme employed in our simulation finds a minimum-time route and schedules the travel to avoid deadlocks. Simulation experiments show that the ALVs reach the same productivity level as the AGVs using much less number of vehicles due to its self-lifting capability. However, the results also reveal that the AGVs eventually catch up the performance of the ALVs in most cases if the number of vehicles given is large enough. An exception is when the tandem double-trolley QCs are used for loading, in which case the AGVs cannot catch up the ALVs no matter how many more vehicles are added.
机译：在自动集装箱码头中，自动导引车（AGV）和自动起重车（ALV）是在码头区和堆场之间运输集装箱的最流行选择。在本文中，我们比较了两种车辆与各种性能的码头起重机结合使用时的作业效率。我们假设采用灵活的路径布局，其中车辆几乎可以在任何垂直和水平方向上自由移动。我们的仿真中采用的交通控制方案会找到一条最短时间的路线，并安排行程以避免死锁。仿真实验表明，ALV由于具有自动举升能力，因此使用较少数量的车辆即可达到与AGV相同的生产率水平。但是，结果还表明，在给定的车辆数量足够大的情况下，AGV在大多数情况下最终会赶上ALV的性能。一个例外情况是，使用串联双推车QC进行装载，在这种情况下，无论增加多少辆车辆，AGV都无法赶上ALV。

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