Ceiling storage system and control method thereof

Abstract

Provided is a ceiling storage system for increasing storage capacity by utilizing a ceiling space inside a fab. The ceiling storage system includes a first overhead rack including a plurality of storage positions for storing a plurality of articles; first and second support rails above the first overhead rack and extending in one direction; a first driving rail above the first overhead rack and in parallel with the first and second support rails; a second driving rail coupled to the first and second support rails and the first driving rail and moving along the first and second support rails and the first driving rail; and a first transport vehicle including a carriage coupled to the second driving rail and moving along the second driving rail, and a hoist and a hand unit installed on the carriage and for loading and unloading the articles to and from the first overhead rack.