The present invention, at least one drive unit, a plurality of path sensor is provided path detection portion and, on the basis of the detected signal of the path sensor on the path detecting method of the unmanned vehicles and unattended car having a control part for controlling the driving unit will be. The control of the unmanned car is characterized in that operating the respective path detection sensor at predetermined time intervals in order. This makes it possible to prevent signal interference in the operation of the path sensor of the unmanned car to accurately detect the path.
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