Multiplex audio/video compression transmission server
A multi-channel audio and video, transmission server technology, applied in the field of multi-channel audio and video compression transmission servers, can solve the problems of insufficient control and management storage performance, fixed system functions, lack of flexibility of the system, etc., to achieve scalability and upgradeability Good, strong control and network function, the effect of fast and clear image transmission
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[0031] Embodiment 1: A multi-channel real-time audio and video compression transmission server of the present invention, the main components are as figure 1 As shown in the block diagram, it includes audio codec, video codec, digital signal processor DSP, ARM microprocessor, Ethernet port, serial port, hard disk interface, power supply circuit and peripheral microphone, camera and pan / tilt. The invention adopts a DSP+ARM architecture that integrates two independent digital signal processors DSP and ARM chips on one board. The audio codec is connected to the McASP of the digital signal processor, and the video decoder is connected to the Video of the digital signal processor. Ports are connected. Both the digital signal processor and the ARM microprocessor contain external SDRAM and FLASH circuits. The digital signal processor and the ARM microprocessor are connected through the HPI interface, and the ARM microprocessor is connected to the Ethernet port, serial port, and hard disk ...
Example Embodiment
[0040] Embodiment 2: An application example of the multi-channel real-time audio and video compression transmission server of the present invention, the system is connected as Figure 8 Shown. Taking the server of embodiment 1 of the present invention as the core of the video surveillance system, it is connected with 4 cameras and 1 microphone, and the pan / tilt of the camera can be controlled through the serial port to adjust the direction and focal length of the camera and collect live audio and video in real time. After analog-to-digital conversion, it is compressed by H.264 algorithm and G.729 algorithm, and the compressed code stream is transmitted to ARM through HPI. On the one hand, it is stored on the hard disk, and on the other hand, it is sent to the host computer through Ethernet. It can be remotely monitored by multiple upper computers at the same time. The collected video and audio analog data undergoes analog-to-digital conversion, compression coding, etc. through the ...
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