Driving interlocking circuit, signal control system, traction system and train

The invention discloses a driving interlocking circuit, a signal control system, a traction system and a train, and relates to the field of power electronics, and the driving interlocking circuit comprises a first switch tube, a second switch tube, a first diode, a second diode, a first driving unit, a second driving unit, a first resistor, a second resistor, a third resistor and a fourth resistor. The drive interlocking circuit is arranged through a hardware element, only when one of the first switch tube and the second switch tube is kept on and the other one is turned off in the drive interlocking circuit, signal output exists, and if the first switch tube and the second switch tube are simultaneously on, both the first drive unit and the second drive unit do not output signals. The control signals of all the target bridge arms are sent out after passing through the drive interlocking circuit, the drive interlocking circuit can ensure that the upper and lower tubes of the target bridge arms are not switche