Prospect analysis of cloud storage applied in video surveillance field

1, the development of video surveillance technology

Video surveillance development, experienced a simulation monitoring, digital monitoring, network video monitoring three stages.

The development of analog video surveillance technology has been very mature, and in the current practical engineering applications have been very widely used, has formed a very large scale. Its inherent limitations are: only suitable for a small range of monitoring, not suitable for large-scale networking monitoring, the system has a poor ability to expand, can not form an effective linkage, such as newspaper. With the development of technology, analog video surveillance will gradually be replaced by digital video surveillance system.

Digital video surveillance refers to the use of digital video surveillance system from the aspects of video capture, encoding, transmission to control storage, and compared with traditional analog monitoring, it can be seen that digital monitoring has many advantages.

1 convenient for computer processing. Because the computer can only handle the digital signal, so the computer can use the fast processing capacity of the digital video image compression, analysis, storage and display, and can be seen in a timely manner to detect anomalies and linkage of the report to the management of the abnormal situation.

2 improve the quality of the image, you can use the computer to do a variety of unclear digital image processing. And then adjust the image size, with the help of high resolution display and other methods to get high-quality clear image.

3) facilitate long-distance transmission. The digital information has stronger anti-interference ability than analog signal, and is less affected by transmission line number attenuation, and can carry on encrypted transmission. To prevent critical information from being stolen.

4 Find more convenient. In the digital video surveillance system, the computer can establish the corresponding index. It takes only a few minutes to find the appropriate field records. Traditional analog monitoring may need to find video information for the entire time period.

2. Storage bottleneck in video surveillance

With the rapid development of network technology, the use of network as a platform to integrate the most advanced network technology. Computer and digital processing technology of ALL-DIGITAL network monitoring system has gradually become popular, and occupy more and more market. The system uses the IP address to identify all the monitoring devices, uses the common TCP/IP protocol to carry on the image, the voice and other data transmission, realizes the real sense long-distance comprehensive monitoring system. The system is characterized by all-digital and network, and can be almost unlimited seamless expansion, with a very superior compatibility, can be composed of arbitrary complex monitoring network.

The appearance of network monitoring has greatly improved the image quality, solved the problem of traditional image effect, changed the traditional complex connection mode, and made the access and implementation more simple and convenient. But at the same time, there are huge storage requirements and network pressure issues.

Although the H.264 compression technology has been compressed to minimize video, but it is still a symptom-less radical approach, still plagued the network monitoring industry.

(Responsible editor: The good of the Legacy)