The three core problems in the development of HD monitor

The three core problems in the development of HD monitor

Writer：Kevin　Time：2013-08-05　Click time:

HD megapixels network camera is a professional video surveillance camera security industry application launch in monitoring field. In the HD era, network camera HD technology determines the direction of its development. High-definition network camera so that the image clarity has been a qualitative leap, but also brought a series of realistic problems for HD monitoring system.

1、The problem of bandwidth
Due to the limited network bandwidth, high bit rate video has become the biggest bottleneck in the application. How to use bit rate transmission may lower the quality of the video is the first problem need to be solved as soon as possible HD monitor. At the same time due to network heterogeneity, different networks have different channel characteristics, different users to enjoy the network bandwidth is not the same, even the same user bandwidth may be subject to change. With the development of monitoring and control field, a variety of user terminal has the need to connect the video, such as LAN monitoring network bandwidth is more ideal, users want to browse for a high quality video; and the mobile phone monitoring field due to the limited bandwidth, the user is more important in low bit rate video stream fluency. How to adapt to these different bandwidth environment is the need to address the problem of HD monitoring equipment

2、Display problem
Compared with the standard definition video, information content of HD video is enriched, corresponding to the decoding display performance is greatly improved, such as the current mainstream PC machine can easily achieve 8 D1 decoding video display, but if the front end is 1080P HD video, barely decoding display 1. For large video monitoring platform, if all of the use of HD video decoding, the server will be great pressure.

3、Storage problem
Image resolution enhancement, will consume much more storage space. In 1920 × 1080@30 frames of video as an example, using the H264 encoding algorithm, in order to ensure clarity, stream should be maintained at more than 6Mbps, about 4-8 times of standard definition video. In standard definition video condition, a 16 DVR built-in 8 2T hard disk can meet the long time video storage requirements, and in HD monitor, this time will be greatly reduced, which will bring about an increase in storage costs.