If you encounter interference during monitoring, it will seriously affect the picture effect. Video anti-jamming device is the best auxiliary tool for solving the video interference problem in video surveillance. Let's take a look at this principle from the video anti-jamming device principle. Sharp weapon.
Video anti-jamming principle
Before talking about the principle of video anti-jamming, we should talk about the traditional way of video surveillance signal transmission: video baseband transmission, so-called video baseband transmission, means that the video signal does not undergo any processing such as frequency conversion, and the image pickup end passes through the coaxial cable. The transmission method that is directly transmitted to the monitor. The image is transmitted directly from 0 to 6 MHz of the coaxial cable during transmission, which is very susceptible to interference, which causes the image to appear to be affected by texture, horizontal stripes and noise.
The video anti-jamming device is directly connected to the output of the camera (or determines the video signal without interference) during operation, and the video signal is moved to the high-frequency signal so that the low-frequency signal is not mixed during the transmission, and the solution is used at the monitoring end. The modulator restores the signal to a baseband signal, which can fundamentally eliminate the effects of the above various low frequency interferences. Secondly, the video anti-jamming device has a certain amplification effect on the video signal, thereby improving the signal-to-noise ratio and also prolonging the effective transmission distance of the signal.
The relevant knowledge of the video anti-jamming device principle will be mentioned first, and there is more information about this aspect. Please continue to pay attention to the hot security investment network.
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