This paper discusses such operational problems emerging in applying the filling approach to the maze problem as how to find all dead paths quickly,how to deal with the cycles with a single exit,how to fill sparse fields,then suggests an improved filling approach and finally presents the C program of solving the maze problem based on the improved filling approach.

Cycle-deadlock Control of Rail Guided Vehicles Systems via Petri Nets

To avoid the cycle-deadlock of the Rail-Guided Vehicles(RGVs) systems in Autonomous Vehicle Storage and Retrieval Systems(AVS/RS),a deadlock control modeling method based on Petri nets and directed graph was proposed.