Embedded Linux multimedia signal acquisition and processing apparatus and its transmission method

A signal collection and processing device technology, which is applied in the direction of safety communication devices, transmission systems, digital transmission systems, etc., can solve the problems that information security cannot be guaranteed, multi-channel media synchronization cannot be provided, and camera control cannot be provided. Effects of reduced computation, ease of deployment, and improved acceptability

Inactive Publication Date: 2006-07-19
SOUTH CHINA UNIV OF TECH
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Problems solved by technology

Now the typical streaming media systems include Microsoft Windows Media, RealSystem, Apple QuickTime, etc., but the size of these software is more than tens of megabytes, which is not suitable for combining with embedded systems, and requires the support of high-performance PC servers. high
However, the current simple network monitoring system has the following limitations: the security of information cannot be guaranteed, there is no QoS, the code rate cannot be adjusted adaptively to the network conditions, and it does not provide multi-channel media synchronization, and it cannot provide camera control

Method used

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  • Embedded Linux multimedia signal acquisition and processing apparatus and its transmission method
  • Embedded Linux multimedia signal acquisition and processing apparatus and its transmission method
  • Embedded Linux multimedia signal acquisition and processing apparatus and its transmission method

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Embodiment Construction

[0029] In order to better understand the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0030] Such as figure 1 with figure 2 As shown, the embedded Linux multimedia signal acquisition and processing device of the present invention includes: an embedded server 1, several clients 2 and a cloud platform, the embedded server 1 and the cloud platform are connected by the RS485 bus; the embedded server 1 and the cloud platform Client 2 performs interactive control and data transmission through RTP / RTCP, and uses RSVP to realize QoS resource reservation; embedded server 1 includes an audio and video collector, a compression encoder and an embedded system, and the audio and video collector transfers audio and video signals from The analog signal is converted into a digital signal, and the data is sent to the compression encoder. The compression encoder obtains the data through MPEG4 / H.263 / H.264 and G.729 com...

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Abstract

The invention relates to an embedded Linux multimedia information collection processing device and relative transmission method. Said device comprises: an embedded server, several client terminals and a cloud platform, wherein, said embedded server and cloud platform are connected via the RS485 bus; the embedded server and the client terminal process interactive control and data transmission via the RTP/RTCP to use the RSVP to realize QoS resource preparation. The invention uses safety strategy to prevent the impact on the server to confirm the safety of server authorization and safety of flow media in the network transmission. The network self-adaptive strategy of user terminal can make said device realize the balance between the band width process and the replay possibility when transmitting data in limit network. The invention can apply the remote control area, especially the unattended remote area to apply stable real-time interactive acoustic-virtual detection.

Description

technical field [0001] The invention belongs to the field of multimedia signal acquisition and processing, and in particular relates to an embedded Linux multimedia signal acquisition and processing device and a transmission method using network transmission. Background technique [0002] With the rapid development of computer technology and Internet technology, embedded systems have become the new darling of the IT industry, and the development of network multimedia systems under the embedded platform will have broad prospects for development. Streaming media technology is the product of the combination of network and multimedia. Its international standards and basic research are becoming the focus of close attention of the industry and scientific research institutions. Now the typical streaming media systems include Microsoft Windows Media, RealSystem, Apple QuickTime, etc., but the size of these software is more than tens of megabytes, which is not suitable for combining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/00H04L29/06H04L12/56H04L9/00H04L12/28H04L47/43
Inventor 冯穗力叶梧周卫吕俊辉张静李兆南
Owner SOUTH CHINA UNIV OF TECH
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