JPH0833765B

PURPOSE:To enable an unmanned moving body to easily recognize the position of a station by providing a station selection circuit, a code sequence phase shifting circuit and a code correlation operation circuit on the unmanned moving body. CONSTITUTION:The positions of respective stations are recorded in the station selection circuit 65 as the transmission time of a high frequency signal on a guide line corresponding to a distance from a reference position, and the selection circuit 65 has a reference timer. When the station to be stopped next is designated, the transmission time corresponding to its time is selected and transmitted to the code sequence phase shifting circuit 66. Then, a transmitted pseudo noise code sequence signal is phase-shifted from a reference timing during the time equivalent to the transmission time and a reference code is generated. Next, it is outputted in the code correlation operation circuit 67 from a reference signal and the received code sequence of a guide path as a position deviation signal for the objective station. When the deviation signal comes to zero, the unmanned moving body is stopped. Thus, the unmanned moving body can easily recognize the position of the station.