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Embedded screen transmission system and operating method thereof

A screen transmission and embedded technology, applied in image communication, selective content distribution, electrical components, etc., can solve the problems of poor compatibility of embedded platforms, low portability, long development cycle, etc., and achieve good maintainability and The effects of scalability, clear division of labor between modules, and shortened development cycle

Inactive Publication Date: 2012-09-12
SHANDONG UNIV
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Problems solved by technology

Compared with PCs, embedded terminals are limited by hardware and have weak processing capabilities. If the software on the existing PCs is directly transplanted to the embedded platform, there will be poor compatibility with the embedded platform, low portability, long development cycle, Disadvantages of high cost

Method used

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  • Embedded screen transmission system and operating method thereof
  • Embedded screen transmission system and operating method thereof
  • Embedded screen transmission system and operating method thereof

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Embodiment Construction

[0026] Such as figure 1 As shown, the embedded screen transmission system based on DM3730 of the present invention is composed of a screen sending end 101 and a screen receiving end 102 connected in a local area network. The screen sending terminal 101 takes the Da Vinci platform DM3730 as the core, adopts ARM microprocessor + digital signal processor DSP dual-core architecture; the screen receiving terminal 102 runs on a PC, and uses the VLC player that can directly play network media streams to display the sending terminal 101 screens. The screen sender 101 uses the DM3730EVM development board launched by TI, and its main hardware configuration is as follows: (1) DM3730 processor: DM3730 microprocessor is an ARM microprocessor Cortex- A8 Core and 800MHz (supporting 250, 520 and 660MHz at the same time) TMS320C64x+ digital signal processor DSP Core consists of two parts, and integrates 3D graphics processor, video accelerator (IVA), etc.; (3) memory: the system integrates 25...

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Abstract

The invention discloses an embedded screen transmission system and an operating method thereof. The system comprises a screen sending terminal and a screen receiving terminal which are connected in a local area network, wherein the screen sending terminal takes a T1 Davinci platform DM3730 as a core and adopts a dual-core framework formed by an ARM microprocessor and a digital signal processor (DSP); the ARM microprocessor is used for running a Linux system and a main screen sending program; the DSP is responsible for large-data-amount operations such as color space format conversion, video coding; the screen receiving terminal runs on a personal computer (PC) and displays a screen of the sending terminal in real time; the ARM microprocessor comprises a user interface (UI) control module, a screen capture module, a color space conversion module, a video coding module, a transport stream (TS) packaging module and a network sending module. The embedded screen transmission system adopting a modular design has the advantages that the development cycle is effectively shortened, the development cost is reduced, and the display content of the screen of the screen sending terminal can be transmitted to the screen receiving terminal to be displayed through a network.

Description

technical field [0001] The invention relates to an embedded screen transmission system based on Da Vinci platform DM3730, belonging to the technical field of embedded streaming media. Background technique [0002] With the development of embedded technology and network streaming media technology, screen transmission technology related to computers, mobile phones, and TVs has gradually entered people's field of vision, bringing users a brand new audio-visual life. The so-called screen transmission is to transmit the screen display content of terminal A to terminal B in the form of streaming media for display in real time through a wired or wireless network. Usually terminal A is a simplified streaming media server with strong media processing capabilities, such as computers and smart phones; terminal B generally has a player that directly plays network media, and has a large screen size with good audio-visual effects. Such as TV and so on. Through the screen transmission te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/436H04N21/4363H04N21/4402
Inventor 刘琚殷超李清石刘朝晨许宏吉元辉
Owner SHANDONG UNIV
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