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Networked braking display screen of haulage motor and control method

A control method and a technology of a display screen, which are applied in the directions of bus network, data exchange network, redundant data error detection in calculation, etc., can solve problems such as bus paralysis, poor real-time data interaction, and inability to operate, etc., to achieve enhanced Reliability, enhanced real-time effects

Inactive Publication Date: 2018-02-27
CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Networked braking display screen of haulage motor and control method
  • Networked braking display screen of haulage motor and control method
  • Networked braking display screen of haulage motor and control method

Examples

Experimental program
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Effect test

Embodiment 1

[0085] Such as figure 1 and figure 2 As shown, the mechanical structure of the locomotive networked brake display includes: a front panel 101 and a rear case 201, the front panel 101 adopts a plastic spraying process, and the rear case 201 adopts a forging process to make grooves for heat dissipation and anodic oxidation To enhance wear resistance and corrosion resistance, the front panel is also provided with buttons 102 . The front end of the brake display screen 103 is used for information display and human-computer interaction, and the rear end is used for electrical interface connection, including power interface, CAN1 interface, CAN2 interface, USB1 interface, USB2 interface and LAN interface. The front panel and the rear shell are fixed by bolts to form a whole.

[0086] Such as image 3 As shown, the electrical structure of the locomotive networked brake display screen consists of: LCD screen 301 (resolution 1024*768), touch screen 304 (using 5-wire resistive type)...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/0488G06F11/14H04L12/40
CPCG06F3/0488G06F11/1438H04L12/40006H04L2012/40273
Inventor 刘澳王令军任向杰吕枭吴君良
Owner CRRC QINGDAO SIFANG ROLLING STOCK RES INST
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