HD, network and intelligence are the three major themes of the security industry, and the development of the era has proved that IP network HD is the mainstream of future development, and has been highly popularized. After so many years of development, the accuracy and practicality of intelligent technology are constantly improving. Which directions may be developed in the future?
First, intelligent front-end VS back-end intelligent analysis
In the process of intelligent process development, for a long time, the intelligent analysis function of the video surveillance system is implemented by means of central analysis. This method has its unique advantages. For example, it does not require the front-end camera to have intelligent analysis functions. It only needs to upload the video stream to the intelligent analysis server. For example, because the hardware structure determines the intelligent processing server has high processing performance, The intelligent analysis server can process dozens of front-end video streams at the same time, and so on. Even so, there are still some problems that are difficult to reconcile in this way. For example, as the size of the system grows, the pressure on the back-end storage management and transmission bandwidth will gradually increase, which needs to be solved by improving the performance of the back-end devices. If you want to increase the server configuration, increase the number of servers and switches, etc., it will eventually lead to an increase in the cost of the video surveillance system.
Intelligent front-end is relative to the intelligent analysis of the back-end intelligent analysis server of the monitoring center. To put it simply, some intelligent analysis algorithms are embedded in the front-end camera products, and the cameras are used directly for intelligent analysis or behavior detection. The analysis result or alarm signal is transmitted to the background.
The smart front-end approach is equivalent to giving each camera a "smart brain" that gives them the ability to "stand alone." The main function of the early camera was to capture images and sound signals, which were similar to human "eyes". The analog cameras realized "visible", and the high-definition cameras realized "clear", so the smart front camera must achieve " Seeing clearly, "understand", but also "good thinking" and "easy communication." From the current development point of view, intelligent cameras are by no means a "gimmick" added by related technology and product suppliers for purely commercial purposes, but rather a variety of technologies for cameras to better meet actual application needs. The fruits of innovation.
From the current point of view, the intelligent front-end method effectively solves some problems existing in the back-end intelligent analysis and has become a new direction of intelligent development in recent years. Its main advantages are: First, accuracy and real-time improvement. Because the video does not need to be transmitted to the back-end intelligent analysis server for processing, there is no network delay, packet loss or error caused by compression, which can increase the accuracy of the analysis. In addition, from the traditional "post-view video" to "timely response", it has greatly improved the real-time and enhanced the value of monitoring. Second, circumvent the single point of failure. Integrating intelligent algorithms into each front-end camera, when one of the machines' intelligent functions fails, the other cameras in the intelligent monitoring system are not affected, and intelligent detection and analysis can be performed independently, thereby reducing risks and ensuring The reliability of the entire system. Third, the system construction cost is reduced. The intelligent analysis work is put on the front end to process, and then the analysis result is transmitted to the background. On the one hand, the pressure and cost of the network bandwidth are reduced. On the other hand, since the server only needs to handle the alarm, it can also save a lot of configuration and maintenance costs of the background server. .
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