Research on development and simulation of input/output of AS/RS decision system

The optimal design and operation of AS/RS can effectively enhance the efficiency and reduce the cost of inventory. In this paper, the problem of decision system of output/input of AS/RS is studied. The matrix for notation and division of KU (Kit Units) are presented. The out/input operation system of AS/RS is introduced. The management subsysterm is developed with Visual Basic 6.0, which functions initializations, out/input recording and information searching, KU management optimization and stack-crane optimal scheduling are available. And the monitor & simulation subsystem is built by Kingview 6.5. In this module, dynamic simulation of AS/RS working process is realized; meanwhile the analysis of system working result with graph is available. Database is established by Access 2000, which is the figure access between management and simulation modules. When KU is optimizing, the inventory distribution, system efficiency and transitions should be considered; the stack-crane scheduling is based on the priority of its path; KU management, stack-crane scheduling and conveyor management are considered. Two models presented to improve optimal operation is available.