In particular, the present invention relates to a technique of managing {HEAD ~ the machine difference} of {TAIL ~ each guided vehicle} 
In particular , the present invention relates to a technique of managing { HEAD ~ the machine difference } of { TAIL ~ each guided vehicle }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL