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Scheduling of Automated Guided Vehicles in Flexible Manufacturing Systems environment

机译:柔性制造系统环境下的自动导引车调度

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摘要

Automated Guided Vehicles (AGVs) are among various advanced material handling techniques that are finding increasing applications today. They can be interfaced to various other production and storage equipment and controlled through an intelligent computer control system. FMS are well suited for simultaneous production of a wide variety of part types in low volumes. The FMS elements can operate in an asynchronous manner and the scheduling problems are more complex. The use of Automated Guided Vehicle is increasing day by day for the material transfer in production lines of modern manufacturing plants. The purpose is to enhance efficiency in material transfer and increase production. Though the hardware of AGV’s has made significant improvement in the field but the software control of the fleet still lacks in many applications. Both the scheduling of operations on machine centers as well as the scheduling of AGVs are essential factors contributing to the efficiency of the overall flexible manufacturing system (FMS). In this work, scheduling of job is done for a particular type of FMS environment by using an optimization technique called the genetic algorithm (AGA). A ‘C’ programming code was developed to find the optimal solution. When a chromosome is input, the GA works upon it and produces same no. of offsprings. The no. of iterations take place until the optimum solution is obtained. Here we have worked upon eight problems, with different no. of machines and no. of jobs. The input parameters used are Travel Time matrix and Processing Time matrix with the no. of machines and no. of jobs. The results obtained are very quite close to the results obtained by other techniques and by other scholars.
机译:自动导引车(AGV)是各种先进的物料搬运技术之一,如今已发现越来越多的应用。它们可以连接到其他各种生产和存储设备,并通过智能计算机控制系统进行控制。 FMS非常适合于小批量同时生产多种零件。 FMS元素可以异步方式运行,并且调度问题更加复杂。在现代制造工厂的生产线中,自动导引车的使用正日益增加。目的是提高材料传输效率并提高产量。尽管AGV的硬件在该领域已取得了重大进步,但在许多应用中仍然缺乏对车队的软件控制。机器中心的作业调度和AGV的调度都是提高整个柔性制造系统(FMS)效率的重要因素。在这项工作中,通过使用称为遗传算法(AGA)的优化技术为特定类型的FMS环境完成了作业调度。开发了“ C”编程代码以找到最佳解决方案。输入染色体后,GA对其进行处理并产生相同的编号。后代。没有进行迭代直到获得最佳解。在这里,我们研究了八个问题,不同的是。机器,没有。的工作。使用的输入参数是行进时间矩阵和编号为的处理时间矩阵。机器,没有。的工作。获得的结果与其他技术和其他学者的结果非常接近。

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    Tiwari Atul;

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  • 年度 2010
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