Wuxi Monitoring Three core issues of company development
Wuxi Monitoring Company HD Megapixel Network video camera It is a professional video surveillance camera introduced by the security industry and used in the surveillance field. In today's high-definition era, the high-definition technology of webcam determines its development direction. The high-definition network camera has made a qualitative leap in image clarity, but it has also brought a series of practical problems to the high-definition monitoring system.
1. Bandwidth problems
Due to the limited network bandwidth at present, the high bit rate brought by high-definition video has become the bottleneck of its promotion. How to transmit high quality video at the lowest possible bit rate is the primary problem to be solved in HD monitoring. At the same time, due to the heterogeneity of the network, different networks have different channel characteristics, and different users enjoy different network bandwidth, even the bandwidth of the same user may change at any time.
With the development of the monitoring field, all kinds of user terminals have the need to connect monitoring videos. For example, the bandwidth of the LAN monitoring network is ideal, and users want to browse high-quality videos; However, due to the limited bandwidth in the mobile phone monitoring field, users pay more attention to the smoothness of video at low bit rates. How to adapt to these different bandwidth environments is also a problem that HD monitoring equipment needs to solve.
2. Show problems
Compared with standard definition video, high-definition video has a large amount of information, and the corresponding requirements for decoding and display performance have also been greatly improved. For example, the current mainstream PC can easily decode and display 8-channel D1 standard definition video, but if the front end is 1080P high-definition video, only one channel can be decoded and displayed reluctantly. For large video monitoring platforms, if all high-definition videos are used, The server Decoding pressure will be great.
3. Storage issues
The improvement of image resolution will inevitably consume more storage space. With 1920 × 1080@30 Frame video, for example, uses the H264 encoding algorithm. To ensure clarity, the code stream needs to be kept above 6Mbps, which is about 4-8 times the standard definition video. Under the condition of standard definition video, a 16 channel DVR with built-in 8 fast 2T hard disk can meet the demand for long-term video storage. In high-definition monitoring, this time will be greatly shortened, which will lead to an increase in storage costs.
