Platform-based AS/RS for container storage

Abstract

Abslracf-The ever-increasing demand on container porl throughput has mounted the necessity of a more efficient container storage StNCtUE, the Equirements of which apparently can be met by ASKS because of its abilities of fully automating material handling and the potentials for delivering high performance. In this study, we present an ASKS for container storage, develop the travel time models for the proposed system, and confirm its feasibility in terms of throughput performance. A pre-processing scheme for operation scheduling that significantly improves the AS/RS throughput is proposed and evaluated. Additional constraints arising from the container size and weight on ASiRS design and scheduling are taken into considerations, which in effect leads to a platform-based ASIRS.

Automated Storage and Retrieval Systems: A Review on Travel Time Models and Control Policies

“…In order to handle extra heavy loads (loads above 20 tons, such as sea container cargo) at high speed, a new kind of S/R mechanism in split-platform AS/RS, or SP-AS/RS in short, was presented by Chen et al (2003) and Hu et al (2005). They developed discrete (Chen et al 2003) and continuous (Hu et al 2005) travel time models for the proposed system under SC cycle.…”

“…They developed discrete (Chen et al 2003) and continuous (Hu et al 2005) travel time models for the proposed system under SC cycle. In the SP-AS/RS transports of the load within individual storage aisles are separated into vertical and horizontal movements and handled by different devices, namely the vertical platform and the horizontal platform, respectively.…”