AS/RS(automatic storage retrieval systems) refers to a variety of computer-controlled methods for automatically placing and
retrieving load from specific storage locations. An AS/RS environment would encompass many of the following technologies:Horizontal Carousels, Vertical Carousels, Vertical Lift Modules (VLM) and traditional Crane-in-Aisle Storage & Retrieval systems
that utilize storage retrieval (SR) crane.
Make full use of space for automated warehouse is an important part of storage, storage of goods by using multi-level warehouse system, height can reach 30 meters, according to the needs of different types of elevated can set more than 12 meters high, middle
(5-12 meters), and low (5 meters below). Compared with the library can save nearly 70 per cent of the area.