| 摘要 |
PURPOSE:To secure the destination of an unmanned guided vehicle and to improve the reliability of a transportation system by the guided vehicle, by permitting the guided vehicle to leave for a specified destination station only when the specified destination station number is coincident with the number of a station being called. CONSTITUTION:On the basis of a column number and a row number specification signal outputted from a CPU30, and an operation specification signal, a specification signal output circuit 38 flows an operation signal, having a frequency expressing specified operation, to the operation signal line 25 of a specified station. The CPU30 outputs a start command to a station where a guided vehicle 20 is stopped, and also outputs a stop command to a called station. Therefore, an operation signal current having a frequency indicating that the guided vehicle leaves flows through the operation signal line 25 of the station where the guided vehicle 20 is stopped, and the guided vehicle 20 leaves on detecting the operation signal. |
