The present invention belongs to the field of traffic technology and relates to the safety running of railway locomotive and is applicable to the auto-control of railway steam locomotive and diesel locomotive. It mainly consists of obstacle annunciator of railroad crossing, address marker, central processor, keyboard and actuating part. The said auto-control system can automatically identify the obstacle of the railroad crossing and can automatically brake, and therefore it can avoid the traffic accident resulted from natural conditions or state of the driver himself. |