The invention discloses an auxiliary testing device. The device comprises a
control unit, a button unit, an indication unit and a line connection port. The line connecting port can be used for being electrically connected with a positive
electricity relay, a negative
electricity relay, a positive line
relay and a negative line relay in the semi-automatic block
system. The
control unit is electrically connected with the button unit and the indication unit. The button unit is used for inputting a button
signal to the
control unit when triggered; the control unit is used for outputting a test
signal to the semi-automatic block
system according to the received button
signal, collecting the test signal in the semi-automatic block
system, and controlling the indication unit to output a test result according to a collection result; wherein the test signal comprises a positive
electric signal and a negative
electric signal. According to the technical scheme, the provided auxiliary testing device is used for replacing an
interlocking command through manual operation in the field debugging or maintenance period, then the
train receiving and dispatching processes in the semi-automatic block system are simulated, and then fault positioning and wiring
verification of the semi-automatic block system are completed.