Mixed monitoring system of digital HD video and analog HD video and construction method
A high-definition video and monitoring system technology, applied in closed-circuit television systems, television systems adapted to optical transmission, cable transmission adaptation, etc., can solve problems such as high cost, inability to mix networking, and large amount of upgrades and renovations, reducing construction costs. The effect of minimizing the cost of modification and upgrading, and simplifying the installation and commissioning work
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Embodiment 1
[0034] Example 1: as figure 2 As shown, the digital high-definition IP camera outputs an IP signal. The high-definition camera generally supports a maximum resolution of 1920x1080 / 60 frame format high-definition video, which is compressed and packaged into IP format. The data rate is usually 2Mbps~40Mbps, because the bandwidth is too high and the signal format is different. Matching and cannot directly pass through the digital video optical transceiver behind; it needs to be introduced into the first Ethernet physical interface transceiver 2 through the first RJ45 connector 1 of the IP-to-CVBS-like signal converter, and converted into a digital signal, and then sent to the first RJ45 connector. In an FPGA chip 3; the first Ethernet media access controller in the first FPGA chip 3 recovers the complete IP data packet, repackages the content, and sends it to the forward error correction coding module, and the forward error correction coding The module performs forward error cor...
specific Embodiment
[0035] like Figure 4 As shown, another specific embodiment created by the present invention is: an IP to CVBS-like signal converter is integrated into a digital high-definition IP camera as a functional module, and the new digital high-definition IP camera consists of a casing, a lens 13, an image sensor 14, The image processor 15, the FPGA module 17 and the memory 16 are formed, the image processor 15 is electrically connected to the image sensor 14, the FPGA module 17 and the memory 16, and the lens is electrically connected to the image sensor 14, wherein the image sensor 14 is preferably a CMOS / CCD image sensor, the memory 16 is a DRAM memory;
[0036] The FPGA module 17 includes a network module, an encoder and a modulation module, the encoder is connected to the modulation module, and the modulation module is electrically connected to the third BNC connector 20 through the second D\A converter 18 and the amplifier 19, and the third The BNC connector 20 is a coaxial cab...
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