Research Article
Modeling and Optimizing Based on OTCPN in Multi-Tier Shuttle Warehousing System
| Parameters | Notation | Value |
| Width of a unit storage position | | 0.5 | Depth of a unit storage position | | 0.7 | Height of a unit storage position | | 0.5 | Maximum velocity of shuttles | | 2 | Maximum velocity of lifters | | 3 | Acceleration/deceleration rate of shuttles | | 1 | Acceleration/deceleration rate of lifters | | 3 | Fixed time required for the shuttle, lifter to load or unload the tote | | 2 | Fixed time required for the I/O workstation operation | | 15 |
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