การเพิ่มประสิทธิภาพการจัดการคลังสินค้าด้วยวิธีการจัดเก็บสินค้าและวิธีการเดินหยิบสินค้าในคลังสินค้ารูปก้างปลา

Abstract

Order picking is one of the most critical processes in warehouse management. It is the process of retrieving a set of requested items from specified storage locations in a warehouse to prepare orders that are then shipped to the customers. In manual order picking systems, the picking travel distance required by the order pickers has profound effects on the warehouse throughput. This research aims to evaluate the effects of four main factors, including pick-list sizes, warehouse sizes, order picker routing policies, and storage assignment policies on the picking travel distance in a fishbone warehouse. To estimate the picking travel distance, the simulations of all possible combinations of several levels were created. The outputs were then used as the inputs for a statistical study assessing the main and interaction effects from different factors. The analysis of variance (ANOVA) results indicate that the main effects and two-way interactions have a statistically significant effect on the picking travel distance at a level of significance α of 0.05. Most of the three-way interactions are significant. The only thing that is not significant in three-way is the interaction between warehouse sizes, pick-list sizes, and order picker routing policies. In terms of four-way interactions, they are not significant at a level of significance α of 0.05.