Solution to the stuttering of network camera picture
Reason 1: The reason of the camera itself
The network camera manufacturer's own technology has defects. The network camera will have a relatively large delay after running for a long time, which greatly exceeds the delay time required by the national standard. It feels that the picture is stuck, and only the camera is powered off. It can be restored to normal afterwards. For this situation, it is recommended that you choose a well-known, strong technical, and after-sales security monitoring product brand.
Reason 2: Decoding ability of hard disk video recorder
For customers who use network high-definition hard disk video recorder to display storage, the decoding ability of the selected network high-definition hard disk video recorder will also affect the smoothness of the picture. If the connected picture exceeds the maximum decoding capacity of the hard disk video recorder, or If the processing power, which the core chip of the hard disk video recorder, is not strong, it will cause the screen to freeze. In this case, it is recommended that customers choose well-known brands of monitoring products, and be careful not to fully load them.
Reason 3: network platform hardware configuration
For customers who use platform software that is: computer + software for display control, the computer configuration, CPU, GPU, memory, etc, performance will affect the smoothness of the monitoring screen. If the performance of CPU, GPU, and memory are insufficient, the display must be after the number of video screens, there will be screen freezes. At this time, you can check the CPU and memory usage through the computer task manager. To deal with this situation, it is recommended to use a high-end CPU and high-memory computer as the display storage device.
Reason 4: The quality of the network cable is too poor
The quality of the network cable used is too poor and copper material is not used. Generally, it is recommended that the longest transmission distance of a regular national standard network cable should not exceed 100 meters, and the transmission performance of a poor-quality network cable will be greatly discounted. If a poor-quality network cable is used, the initial picture may be normal, and the oxidation and attenuation of the line in the later period will easily cause signal transmission loss Packets, intermittently intermittently, and screen freezes. In this case, it is recommended to choose a good quality national standard network cable during construction.
Reason 5: choice of switch
The choice of the switch will also directly affect the smoothness of the screen. If the selected switch is a non-wire-speed switch, neither the backplane bandwidth nor the packet forwarding rate can meet the requirements of the device, which will cause the screen to freeze. It is recommended to use a 100M switch for less than 8 points, and a switch with a gigabit upload port for more than 8 points. If there are more than 200 points, it is necessary to consider a three-layer 10 Gigabit core switch.
Precautions:
The phenomenon of screen freeze can also be solved by reducing the code stream or frame rate. However, although this improves the fluency of the screen, it is at the expense of the clarity of the image. It is recommended not to use it if the user has higher requirements for the image clarity.