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A locomotive on-board display control device, system and method

An on-board display and control device technology, applied in locomotives, static indicators, instruments, etc., can solve the problems of occupying processor resources, poor versatility and practicability, procurement of key components and risk of production shutdown, etc. The effect of avoiding chip stoppages and procurement difficulties, improving availability and reliability

Active Publication Date: 2019-08-16
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] In view of this, the purpose of the present invention is to provide a locomotive on-board display control device, system and method, which can overcome the need for a large number of processor resources in the prior art, poor versatility and practicability, and procurement and shutdown of key components. risk of technical flaws

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  • A locomotive on-board display control device, system and method
  • A locomotive on-board display control device, system and method

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Embodiment Construction

[0060] For the sake of reference and clarity, the technical terms, abbreviations or abbreviations used in the following are described as follows:

[0061] FPGA: Field-Programmable Gate Array, short for field programmable gate array;

[0062] CPLD: Complex Programmable Logic Device, short for complex programmable logic device;

[0063] ASIC: Application Specific Integrated Circuit, short for application specific integrated circuit;

[0064] GPIO: General Purpose Input Output, short for general input / output interface;

[0065] MCU: Microcontroller Unit, short for micro control unit;

[0066] LCD: Liquid Crystal Display, short for liquid crystal display;

[0067] LED: Light Emitting Diode, short for light emitting diode;

[0068] PWM: Pulse-Width Modulation, short for pulse width modulation;

[0069] SRAM Static Random Access Memory, short for static random access memory;

[0070] TFT-LCD: Thin Film Transistor-LCD, short for thin film field effect transistor liquid crystal display;

[0071] TTL:...

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Abstract

The invention discloses a locomotive vehicle display control apparatus, system and method. The apparatus is based on a programmable logic device and comprises an LCD control module used for performing read-write control on data output by a processor module and outputting the data to an LCD display module; a low-temperature heating control module used for driving an external heating module to generate heat to heat the LCD display module when the temperature of the locomotive vehicle display control system is lower than a heating limit value; an over-temperature alarm control module used for driving an external over-temperature alarm driving module to perform over-temperature alarm when the temperature of the locomotive vehicle display control system is higher than a high temperature limit value; and an LED backlight control module used for generating PWM signals according to the change of the ambient brightness and outputting the PWM signals to the LCD display module for brightness adjustment. According to the apparatus, system and method, technical defects that in the prior art, a lot of processor resources need to be occupied, the universality and the practicality are not high, and purchase and halt production risks exist in key devices are overcome.

Description

Technical field [0001] The invention relates to the field of on-board electrical equipment for locomotives, in particular to a programmable logic device-based on-board display control device, system and method applied to rail transit vehicles such as locomotives, high-speed rails, urban rails, and subways. Background technique [0002] Rail transit fields such as locomotives, EMUs, high-speed rails, urban rails, and subways belong to an industry with high safety requirements, and the operating environment of the vehicles is extremely harsh, such as large operating temperature span, high humidity, and strong vibration. As an important human-machine interface of rail transit vehicles, the locomotive on-board display control system is mainly responsible for displaying some important information during the operation of the locomotive, such as: operating speed, monitoring screens, alarm information, etc. Therefore, the normal operation of the display control system is an indispensable...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/34B61C17/00
Inventor 任磊张光强易俊威吴吉昌廖吉芳白云郝俊杰胡浪
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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