Intelligent door control system of rail train

Abstract

The invention discloses an intelligent door control system of a rail train, which comprises control modules, driving modules and a monitoring and diagnosing module, wherein each carriage is controlled by a control module, a driving module is arranged on each door, and in each carriage, the control module and the driving modules are communicated by adopting a CAN (controller area network) bus so as to realize a control mode where one control module corresponds to multiple driving modules. The control modules are connected with a train bus. The operation processes are as follows: the control modules receive control signals such as door opening, door closing and the like transmitted on the train bus, send TCMS (train control and monitor system) communication commands to the driving module on each door by the CAN bus or in other communication manners according to the obtained control signals so as to control opening and closing actions of the doors by electric motors, and carry out collection and tentative diagnosis on real-time monitoring data of the driving modules on the electric motors. The intelligent door control system can carry out real-time monitoring and diagnosis on running states of the control modules, the driving modules and the electric motors, so as to estimate safety degree of a door system and improve running reliability of a train.

Description

technical field [0001] The invention belongs to the technical fields of industrial automation control, ubiquitous perception, network communication and the like, in particular to a rail train smart door control system. Background technique [0002] The rail train door control system is mainly used in the control of urban rail train doors such as subways or light rails: it is mainly responsible for receiving control signals from the top floor of the train (driver's cab), such as door opening and closing actions, locking, obstacle detection, isolation and removal, combined with train doors Some position sensors on the train, such as door switch in place, door lock in place, travel switch and other signals, realize control functions such as opening and closing of train doors. refer to figure 1 At present, the control system of the automatic door system of urban rail trains is composed of electronic door controller (EDCU), driver, detection device, etc., and its core part is ED...

AI Technical Summary

Problems solved by technology

[0003] Due to the short running time between stations in urban rail transit, the number of doors in a single car is eight to ten, which makes the number of doors in the whole train a lot, and the doors are opened and closed frequently during operation. According to statistics from the operation department, the passenger compartment doors of rail vehicles are one of the most used vehicle equipment in subway operations, which leads to a high failure rate of the door control system, resulting in trains not running on time, and frequent "intrusion" incidents, especially during commuting During the peak period, there are also major safety accidents that caused casualties of passengers (Yang Feng, Introduction and Failure Analysis of Nanjing Subway Passenger Door System [J], Rolling Stock Technology, No. 5, October 2009)

The main problems of the door control system are reflected in the following aspects: (1) The reliability of the door controller does not meet the relevant requirements, and the mean time between failure (MTBF) is relatively small. In actual use, some parts such as the in-position switch fail very high rate

(2) Some of the existing door controllers and trains use serial ports such as RS232 or RS485, and the ability to resist common mode interference in the environment is weak

(3) The existing door controller basically integrates the control module and the drive module as a whole, and the coupling degree between the key components is high. As long as there is a problem with one component, the entire controller is in a paralyzed state, which is difficult to determine. Faulty components increase the difficulty of maintaining the door controller and affect the normal operation of the train

(4) The intelligence of the existing door controller is too low to evaluate the health of the door control system, to give early warning and self-elimination of faults, and to give no clear indication of faults, and simply alarm through sound or indicator lights, resulting in Increased maintenance difficulty

(5) Existing door controllers are poor in universality, and are only suitable for a certain type or type of train of a certain train manufacturer, and do not have universal applicability. Different controllers must be developed for different trains , which increases the cost of research and development, which is not conducive to the diversified development of the company

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