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Stream media server of audio / video monitor and control system based on passive Ether optical network

A streaming media server and passive optical network technology, applied in the field of network communication technology and audio and video codec, can solve incompatibility and other problems, and achieve the effect of saving bandwidth resources

Inactive Publication Date: 2006-12-06
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] Existing network audio and video servers follow standards such as MJPEG, MPEG-2, MPEG-4, H.264, and AVS when compressing and encoding audio and video data, and various standards are incompatible with each other.

Method used

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  • Stream media server of audio / video monitor and control system based on passive Ether optical network
  • Stream media server of audio / video monitor and control system based on passive Ether optical network
  • Stream media server of audio / video monitor and control system based on passive Ether optical network

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Embodiment Construction

[0013] The invention provides a stream media server for an audio and video monitoring system based on an Ethernet passive optical network, which is composed of at least one audio and video coding format conversion board and a switching control board, both of which are connected through a data bus; the audio and video coding format The conversion board is equipped with an MTM (audio and video encoding format conversion module), which communicates with the LPU (line processing unit) of the optical line terminal of the Ethernet passive optical network through the MII / GMII interface (media independent interface / gigabit media independent interface) Connection, the audio and video encoding format conversion module consists of a network processor and an audio and video encoding format conversion processor, the two are connected through a bidirectional data bus and a number of control lines; the switching control unit (SCU) includes an Ethernet switching module and a network management ...

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Abstract

The invention comprises an audio and video coding format converting board and a switch controlling board, both are connected through a data bus. The audio and video coding format converting board comprises a network processor and an audio and video coding format converting processor, both are connected through a two-way data bus and several control lines; the switch controlling board comprises a Ethernet switching module and a network administration processor, both are connected through a MII / GMII interface. The invention can automatically converts the network-inputted audio and video data in stream media format into the audio and video format defined by AVS, and the send audio and video data in stream media format to a destination address, and can also sends the converted single-way source stream media data to the client side of network monitor by multicast way according to the administration signaling.

Description

technical field [0001] The invention relates to the field of network communication technology and audio and video codec technology, in particular to a streaming media server of a video monitoring system based on an Ethernet passive optical network (EPON). Background technique [0002] In order to cope with the daily prevention and control of urban public security management and special public emergencies such as major terrorism and disasters, the construction of a standardized, multi-level video surveillance network has increasingly become a major requirement for the construction of a safe city. [0003] EPON can better support IP protocol so that various IP-based services can realize intercommunication on EPON, thus becoming an ideal solution for "multi-network integration". EPON adopts a point-to-multipoint broadcast topology in the downlink direction, which is easy to realize the transmission of video surveillance signals, and adopts statistical multiple access in the upl...

Claims

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Application Information

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IPC IPC(8): H04N7/24H04N7/18H04L29/00
Inventor 张敏明刘德明胡必春
Owner HUAZHONG UNIV OF SCI & TECH
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