Decision-tree learning in dwell point policies in autonomous vehicle storage and retrieval systems (AVSRS)

Autonomous vehicle storage and retrieval system (A VSRS) is a new material handling technology for unit load storage and retrieval. The dwell point issue is one of important aspects to increase the throughput. We examine two dwell point policies of an IO point policy and a last transaction floor policy. We combine two policies from findings in a decision tree. The result indicates significant improvements. The findings from a decision tree are used as inputs in the control system so that the control system selects an appropriate policy based on a current system state.