An identification device reads an identification number from a tag of goods which are transported on an input guide rail. An application server receives the identification number from the identification device. The application server searches for a serial number of a designated output guide rail according to the identification number. When the goods are transported to an intersection of the input guide rail and the designated output guide rail. The goods are carried onto the designated output guide rail. The application serer controls the goods to be transported to a destination station along the designated output guide rail.