CN106023881A

CN106023881A - FPGA-based LED video display screen control system

Info

Publication number: CN106023881A
Application number: CN201610552563.0A
Authority: CN
Inventors: 蒋涛; 杨旭东; 黄万强
Original assignee: Chengdu Safety Technology Co Ltd
Current assignee: Chengdu Safety Technology Co Ltd
Priority date: 2016-07-14
Filing date: 2016-07-14
Publication date: 2016-10-12

Abstract

The invention relates to an FPGA-based LED video display screen control system, which comprises a DVI decoding chip, a data acquisition and reorganization module, an FPGA master chip, a clock control module, a brightness adjustment module, a keyboard input module, an LCD display screen, a row driver module, a column driver module, a vehicle-mounted LED dot matrix module, a communication module and a voice module, wherein the DVI decoding chip is used for carrying out decoding and level matching conversion on DVI-D signals and transmitting RGB signals and horizontal and vertical synchronization signals to the data acquisition and reorganization module; the data acquisition and reorganization module is connected with the FPGA master chip; the control end of the FPGA master chip is connected with the row driver module and the column driver module respectively; and the row driver module and the column driver module are connected with the vehicle-mounted LED dot matrix module. The FPGA-based LED video display screen control system has the beneficial effects that the FPGA in a super-large scale and a CPLD device are adopted for system integration, and thus, the system has a narrowed size, the reliability is improved, the design and the debugging are extremely convenient, and the development cycle for products is greatly shortened.

Description

LED video display screen control system based on FPGA

Technical field

The present invention relates to electronic display technical field, a kind of LED video display screen control system based on FPGA.

Background technology

LED display is divided into graphic display screen and video display screen, is formed by LED matrix block.Graphic display screen can be with computer simultaneous display Chinese character, English text and figure；Video display screen uses microcomputer to be controlled, picture and text, image cyclopentadienyl, plays various information with real-time, synchronization, clearly information propagation pattern, may also display two dimension, three-dimensional animation, video recording, TV, VCD program and on-the-spot circumstance.LED display display picture color is bright-coloured, and third dimension is strong, quiet such as oil painting, moves such as film, is widely used in station, harbour, airport, market, hospital, hotel, bank, securities market, construction market, auction room, Industrial Management and other public place.Common LED display intelligence degree is low, it is difficult to meet user's greater demand, and system is complicated due to control circuit, easy loose contact, interferes and relatively costly.

Summary of the invention

Not enough for above-mentioned prior art, the present invention provides a kind of LED video display screen control system based on FPGA.

The LED video display screen control system based on FPGA that the present invention provides is achieved through the following technical solutions:

nullA kind of LED video display screen control system based on FPGA，It is characterized in that: include DVI decoding chip、Data acquisition and recombination module、FPGA main control chip、Clock control module、Luminance adjustment module、Input through keyboard module、LCD display、Row cutting module、Row drive module、Vehicle LED lattice module、Communication module、Voice unit，DVI-D signal is decoded and the coupling conversion of level by described DVI decoding chip，Rgb signal and row field sync signal are transmitted to data acquisition and recombination module，Described data acquisition and recombination module connect FPGA main control chip，Described FPGA main control chip controls end and connects row cutting module respectively、Row drive module，Described row cutting module、Row drive module to connect vehicle LED lattice module，Described FPGA main control chip connects clock control module respectively、Luminance adjustment module、Input through keyboard module、LCD display、Communication module、Voice unit，Described luminance adjustment module connects vehicle LED lattice module.

Described input through keyboard module uses 4x4 keyboard, and described input through keyboard module is connected with FPGA main control chip by parallel mode.

The invention has the beneficial effects as follows:

1, use ultra large scale FPGA and CPLD device to carry out the system integration so that system bulk reduces, reliability improves, and design, debug very convenient, substantially reduce the construction cycle of product；

2, the functions such as the LED demonstration of different pattern, brightness continuously adjustabe, left and right roll screen show, timing cycle, real-time time show, data acquisition and recombination module renewal display information, long-range control are fully achieved, and through test, system stability is the best, has practice to be widely worth.

Accompanying drawing explanation

Fig. 1 is the structural representation of the present invention.

Detailed description of the invention

By embodiment, technical scheme will be clearly and completely described below, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those skilled in the art are obtained under not making creative work premise, broadly fall into the scope of protection of the invention.

nullA kind of based on FPGA LED video display screen control system as shown in Figure 1，It is characterized in that: include DVI decoding chip、Data acquisition and recombination module、FPGA main control chip、Clock control module、Luminance adjustment module、Input through keyboard module、LCD display、Row cutting module、Row drive module、Vehicle LED lattice module、Communication module、Voice unit，DVI-D signal is decoded and the coupling conversion of level by described DVI decoding chip，Rgb signal and row field sync signal are transmitted to data acquisition and recombination module，Described data acquisition and recombination module connect FPGA main control chip，Described FPGA main control chip controls end and connects row cutting module respectively、Row drive module，Described row cutting module、Row drive module to connect vehicle LED lattice module，Described FPGA main control chip connects clock control module respectively、Luminance adjustment module、Input through keyboard module、LCD display、Communication module、Voice unit，Described luminance adjustment module connects vehicle LED lattice module.

Further, described input through keyboard module uses 4x4 keyboard, and described input through keyboard module is connected with FPGA main control chip by parallel mode.

Embodiment described above only represents embodiments of the present invention, and it describes more concrete and detailed, but can not be interpreted as limitation of the scope of the invention.It should be pointed out that, for a person skilled in the art, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into scope.

Claims

null1. a LED video display screen control system based on FPGA，It is characterized in that: include DVI decoding chip、Data acquisition and recombination module、FPGA main control chip、Clock control module、Luminance adjustment module、Input through keyboard module、LCD display、Row cutting module、Row drive module、Vehicle LED lattice module、Communication module、Voice unit，DVI-D signal is decoded and the coupling conversion of level by described DVI decoding chip，Rgb signal and row field sync signal are transmitted to data acquisition and recombination module，Described data acquisition and recombination module connect FPGA main control chip，Described FPGA main control chip controls end and connects row cutting module respectively、Row drive module，Described row cutting module、Row drive module to connect vehicle LED lattice module，Described FPGA main control chip connects clock control module respectively、Luminance adjustment module、Input through keyboard module、LCD display、Communication module、Voice unit，Described luminance adjustment module connects vehicle LED lattice module.
A kind of LED video display screen control system based on FPGA the most according to claim 1, it is characterised in that: described input through keyboard module uses 4x4 keyboard, and described input through keyboard module is connected with FPGA main control chip by parallel mode.