| 摘要 |
<p>PURPOSE:To automatically check an automatic train stop instructing device by automatically generating an inspection pulse by a confirmation signal and applying the inspection pulse to check units to output a brake release command only when the inspection pulse is normally checked. CONSTITUTION:In case that a confirmation button in a driver's cab is pressed when a train is restarted after the train is once stopped, to thereby output a confirmation sinal AK, this signal AK is converted in a level converting circuit 10. The output of the converting circuit is connected to the output side of a switch 12 for instructing the generation of a pulse duration signal which is fed when the brake release signal is generated. When the confirmation signal is thus applied to the converting circuit 10, the output of the circuit 10 is applied to an inspection pulse generates a pulse duration signal to output a brake release command. This pulse duration signal is applied through a level converting circuit 3 to check units 7, 8. Thus, when these circuits are normally operated, both the check units 7 and 8 generate brake release outputs to allow a comparing circuit 9 to generate a brake release output BK.</p> |
