Train control vehicle-mounted display device

Abstract

The invention discloses a train control vehicle-mounted display device, which comprises a mainboard, a main central processing unit (CPU), a communication CPU, a Profibus protocol module and a high-level data link control (HDLC) protocol module, wherein the main CPU is integrated on the mainboard; the communication CPU is integrated on the mainboard, is connected with the main CPU and is used forrealizing external communication; the Profibus protocol module is integrated on the mainboard, is connected with the communication CPU and is used for realizing a Profibus interface function with thecommunication CPU; and the HDLC protocol module is integrated on the mainboard, is connected with the communication CPU and is used for realizing an HDLC interface function with the communication CPU. Due to the adoption of the train control vehicle-mounted display device, the workload of the main CPU is reduced, the complexity of a software design of the main CPU is simplified, the real-time responsivity of communication is strengthened, the stability of a system is improved, and a Profibus protocol stack function and the HDLC interface function are realized. Therefore, the communication between the train control vehicle-mounted display device and a CTCS-3 train control vehicle-mounted automatic train protection (ATP) is realized.

Description

technical field [0001] Embodiments of the present invention relate to vehicle control technologies, and in particular to a vehicle-mounted display device for train control. Background technique [0002] The existing driving human-machine interface (DMI) for 250km / h EMUs is a part of the automatic train protection system (ATP) and is mainly used to realize the driver and train control Information exchange between vehicle equipment. [0003] In the prior art, the DMI communicates with the ATP through a high-level data link control (High-Level Data Link Control, HDLC for short) interface. However, the interface between Chinese Train Control System (CTCS-3) level train control vehicle-mounted ATP and DMI is required to be Profibus or HDLC. to communicate. [0004] On the other hand, the existing DMI uses a single CPU architecture to complete functions such as external communication, interface display, sound playback, and key collection. When the amount of external communicat...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a vehicle-mounted display device for train control, which is used to solve the defects in the prior art that the vehicle-mounted display device for train control does not have a Profibus interface, adopts a single CPU architecture to bring a heavy burden, and cannot respond to communication in a timely manner, so as to realize the vehicle-mounted train control Displays normal communication between the device and ATP

Images