Is the hottest IP network camera quantitative or q

2022-08-04
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IP network camera: quantitative change or qualitative change

ip webcams have opened up a broad road for intelligent video analysis technology. This technology uses computers to analyze video signals and extract "events" from them. The more information the video source contains, the stronger the functions it can achieve in the future. The high information content must be based on high-resolution video images. If also limited to 768 × 576 resolution, so many future intelligent applications are out of the question. The IP webcam enables people to completely get rid of the bottleneck of image definition, and finally realizes the transformation from quantitative change to qualitative change

highly integrated and intelligent video monitoring system

anyone who knows about video monitoring technology knows that video monitoring system technology has made great progress in recent years

once upon a time, several cameras, several video cables, several monitors and one tape drive constituted a set of video monitoring system. For video monitoring system integrators, the important work is to design the circuit, calculate the loop impedance, pile of wire ends, bundle of wires, and connect countless video lines. It takes 10 days and a half to clean the wire ends. Sweating engineers are all "electricians" who are very familiar with circuit design. It was the first generation of analog video surveillance system

from "electrician" to expert

I don't remember when DVR (digital hard disk video) appeared instead of tape drive; DVS (digital video server) appeared, and the video signal became digital; The video cable disappeared and became a cable... Except for the monitor on the wall, the system has changed. The most talked about impedance, 232 and 485 no longer, but MPEG4, H.264, video compression, CIF and 4cif. "Electricians" are becoming less and less. They spend most of their time in front of the computer screen and seem to be computer experts. The digitalization of the monitoring system has begun

it is a new type of impact testing machine that can instantly measure and record the characteristic curve of materials in the process of impact. Then, what does video digitization bring to the monitoring system? In fact, everyone familiar with monitoring knows the answer. Since the analog video signal is converted into digital signal, all the work becomes simple. We have abandoned those cumbersome matrix equipment and a tangle of video cables. We have been able to use the digital transmission network to see the vision thousands of miles away to reduce the axial tension of the test piece to the minimum frequency picture. We can sit in front of the computer and click the mouse gently. The distinction between foreign and domestic fixtures is great. We can instantly complete the work that took half a month of hard work a few years ago

kill the webcam halfway

from this point of view, the digitization of our video monitoring system has been completed. But at this time, a new term - IP network camera came out

what is an IP network camera? In fact, it's easy to answer: there is a camera with a power line behind it. Instead of an analog video line, it is connected with a cable. It no longer uses DVS, but directly transmits video signals to the. Rats should also be killed near the cable site. Other people can immediately see the monitoring picture of this camera through the network. It is said that a large number of IP webcams have become a trend of video surveillance systems in the world

to be honest, when I first came into contact with this thing, I really felt a little funny: it was on the video. I removed a camera and a DVS. The two things were connected with wires and a bundle of adhesive tape. A larger box was put outside and plugged in. This is also an IP network camera. Once the power is turned on, the video can be uploaded immediately. It seems that there is no difference

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