Train control man-machine unit data processing method compatible with multiple transmission modes

The invention provides a train control man-machine unit data processing method compatible with multiple transmission modes, which comprises the following steps that: a vehicle-mounted host sends a plurality of pieces of one-time information to a man-machine unit, and waits for a confirmation queue to record all the sent one-time information and retransmission time corresponding to each piece of one-time information; the man-machine unit feeds back corresponding confirmation information to the vehicle-mounted host after receiving each piece of one-time information, and the confirmed message queue records the serial number of the confirmed one-time information; when any one piece of one-time information meets the retransmission time, the vehicle-mounted host retransmits the one-time information to the man-machine unit; and when the serial number of one piece of one-time information received by the man-machine unit already exists in the confirmed message queue, refusing to receive the one-time information. The i