Multiplex audio/video compression transmission server

Abstract

The invention relates to a compressed transmission server of multipath audio and video, comprising an audio encoder / decoder, a video encoder / decoder, a digital signal processor (DSP), an ARM micro-processor, an Ethernet port, a serial port, a hard disk interface, a power circuit, an external microphone, a camera and a tripod head. Independent DSP chip and ARM chip are adopted to assemble a DSP+ ARM framework on a board; the tripod head is controlled by the ARM micro-processor through the serial port so as to realize the rotation and zoom of the camera, the audio and video analog signals are collected on-site in real time and are sent to the digital signal processor after an A / D conversion carried out by the audio and video decoder, and then a compressed encoding is carried out; the video signal is compressed by H.264 arithmetic, the audio signal is compressed by G.264 arithmetic, the code stream data is read by a HPI interface of the digital signal processor, and local hard disk storage and network transmission are carried out, thus realizing the real-time control of the on-site audio and video. The server has strong control and network function, good flexibility, extensibility and upgradeability.

Description

technical field [0001] The invention relates to a multi-channel audio and video compression transmission server. Background technique [0002] People have adopted video surveillance technology in many fields in social production and life, and achieved good social and economic benefits. With the continuous development of digital video processing technology, communication technology, and network technology, the application places of video surveillance technology are becoming more and more diverse, and the needs of video surveillance and corresponding solutions are also emerging in an endless stream. Video surveillance has entered digital from traditional analog surveillance. Internet Age. Many monitoring devices have 24-hour uninterrupted monitoring capabilities, and can remotely monitor, on-site video, etc. [0003] For some independent and small monitoring equipment, an independent multi-channel compression system and stable multi-channel transmission capability are requir...

AI Technical Summary

Problems solved by technology

[0004] The above solutions have their own advantages and disadvantages. Among them, the single-chip DSP solution has low cost and flexible use, but due to the limitation of DSP performance characteristics, its performance in controlling and managing storage is relatively insufficient.

The solution control and network functions of the ARM+ASIC chip are powerful, but due to the use of the ASIC chip for video and audio compression, the video and audio compression system cannot be upgraded and improved, and the system functions are relatively fixed

DaVinci dual-core chip solution, because of the use of a single dual-core chip, the system equipment is relatively small in size and high in stability, but due to the user's understanding of the chip and the difficulty of development, the application degree needs to be improved. At the same time, due to the use of a single chip, the system lacks sufficient flexibility

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