A car door switch circuit and car door control system of an EMU

Abstract

The invention discloses a train door opening and closing circuit and train door control system of a train set. The train door opening and closing circuit comprises a self-resetting door opening button, a self-resetting door closing button and a door releasing module. The door releasing module controls a door releasing instruction line to be converted from a low-level state to a high-level state and kept in the high-level state before a train door is opened every time, and autonomously controls the door releasing instruction line to be converted from the high-level state to the low-level stateafter the train door is closed every time, that is, the door releasing module can autonomously restore the low-level state of the door releasing instruction line, thus after the train door is closed,normal conducting of train opening operation of the next time can be ensured without executing corresponding restoring operation by a driver, manual operation steps of door opening and closing of thetrain set are omitted, the problem that the low-level state of the door releasing instruction line is not restored in time, and consequently the train door cannot be opened after end switching drivingis avoided, and then driving safety and the driving order are ensured.

Description

technical field [0001] The invention relates to the field of door switches of motor trains, in particular to a door switch circuit of a train set and a door control system thereof. Background technique [0002] At present, the EMU is one of the important components of the rail transit system, and its operation safety, reliability and efficiency directly affect the operation of the rail transit system. The door of the EMU is an important part of the EMU, and its switch status will affect the safety, reliability and efficiency of the EMU operation. In the prior art, the door control switch in the driver's compartment of the EMU includes a door release button, a door opening button and a door closing button. The door control logic is: press the door release button, and the door release command line changes from a low level state to a high level state. state, the door controller collects the rising edge signal of the door release command line, and the door enable is valid. At t...

AI Technical Summary

Problems solved by technology

However, if the door needs to be opened again, the door controller needs to collect the rising edge signal of the door release command line again before allowing the door opening operation, that is, after the door is closed, the door release button needs to be pressed twice to reset it to ensure the next door opening operation As a result, the manual operation steps of the EMU door opening and closing are more cumbersome

[0003] Moreover, the EMU contains a double-ended driver's cab, and the door release command line runs through the entire EMU. If the door release button of one of the driver's cabs is not reset in time, the door release command line will continue to maintain a high level state. In this case, the driver directly After changing the driving position and pressing the door release button, the door controller cannot collect the rising edge signal of the door release command line, resulting in the inability to open the door, affecting driving safety and driving order

Images