Networked braking display screen of haulage motor and control method

Abstract

The invention provides a networked braking display screen of a haulage motor and a control method. The networked braking display screen has the functions of initializing a braking control system of the haulage motor, displaying the operating state of the system in real time and performing system diagnosis and recording. A color liquid crystal display (having the resolution ratio of 1024*768) is assembled at the front end of the braking display screen, and the operating state of the braking system is displayed; a touch screen and a film key are assembled at the front end of the braking displayscreen, and a man-machine interaction function is achieved. A CAN interface is formed in the rear end of the braking display screen, and communication is performed by adopting a two-way CAN bus. A daemon process is designed for the braking display screen to monitor the operation states of application programs, and the application programs are instantly restarted when accidentally discontinues or quits. By adopting the scheme, the stability and reliability of products are improved, and the working intensity of maintainers is reduced.

Description

technical field [0001] The invention belongs to the technical field of braking control of a locomotive or a vehicle, and in particular relates to a networked braking display screen and a control method of a locomotive, which are mainly used in a braking control system of a locomotive or a vehicle. Background technique [0002] The brake display screen is the monitoring terminal of the locomotive braking system, which is mainly responsible for initializing the locomotive braking control system, real-time monitoring of the working status of the system, fault diagnosis and storage functions. At present, the domestically used locomotive brake display has the following problems: 1. The brake display uses physical buttons for human-computer interaction. If the buttons are invalid, they cannot be operated. 2. Most of the communication methods are serial buses such as RS-485 or RS-422. The bus adopts a single master-slave structure, the bus utilization rate is low, and the real-tim...

AI Technical Summary

Problems solved by technology

At present, the domestically used locomotive brake display has the following problems: 1. The brake display uses physical buttons for human-computer interaction. If the button fails, it cannot be operated

2. Most of the communication methods are serial buses such as RS-485 or RS-422

The bus adopts a single master-slave structure, the bus utilization rate is low, and the real-time performance of data interaction is poor. Moreover, the serial interface only specifies the physical layer, and there is no error detection mechanism. An error in a node on the bus may cause the entire bus to be paralyzed

3. The running status of the brake display application is uncontrollable. When the application is terminated or exited unexpectedly, the display needs to be restarted manually

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