What should we do if the surveillance camera of Wuxi Dehang Technology Co., Ltd. shows a splash screen?
What should I do if the surveillance camera displays a blurred screen? The monitor screen appears blurred screen, which is usually caused by data packet loss in the line, resulting in incomplete video data received by the video recorder. How to troubleshoot this situation? Let's briefly introduce it to you.
If the monitoring screen is blurred, you can ping the command to test the packet loss between the VCR and the camera. If the monitoring image has such phenomena as blurred screen, mosaic, smear, and stuck, you can use the network detection function in the NVR main menu of the video host. Input the IP address of the camera to test whether there is packet loss or yan on the network, and judge the network quality between the NVR and each camera based on the packet loss rate and yan hours.
Generally, it is normal if the time of yan is 1~2ms. If the test ping value exceeds this value, there may be a fault in the network circuit. If all the monitoring images are blurred, that is, every camera has a delay, then there may be a problem with the backbone network, such as the video recorder to the host Switch There is a fault between. It is necessary to check the negotiation rate of the NVR network interface of the video recorder, the network cable connection between the NVR and the core switch, and the quality of the crystal head.
If some monitoring images are blurred and the packet loss rate is high, the problem may be between the access switch and the convergence switch, and the transmission bandwidth of the interface on the switch is insufficient, resulting in abnormal images. For example, there are many cameras connected, and the converged switch uses 100M ports to connect.
There is also the problem of network cables. The problem of direct connection of network cables is easy to be ignored, especially the network cable quality of the backbone network. If the quality of the backbone network cable is poor, the communication between the NVR and all cameras will be affected for the core line connecting the NVR and the switch.
Wuxi Dehang Technology Co., Ltd., founded in 2010, is a computer network system integration and weak current engineering service company in z industry.
For many years, the company has been committed to information system integration, Internet/Intranet software development, building a technical service network covering the whole country, and providing a complete set of solutions for large, medium and small users such as early planning, scheme design, application development, system installation, debugging and personnel training of information systems and weak current systems. So far, it has provided hundreds of large and medium-sized computer network systems and weak current engineering solutions in the fields of finance, insurance, securities, power, banking, civil aviation, railway, water conservancy, petrochemical, national defense, customs, telecommunications, scientific research institutions, etc.
