July 06, 2023
The main cause of a blurry screen on a monitoring screen is often that loss of a line packet causes video data received by recorder to be incomplete, and lost part of video will be displayed as a blurry screen. on monitoring screen. In addition, quality of network cable is too low, crystal head is connected incorrectly, power of switch exceeds upper limit, etc., which may result in packet loss, screen blur, or freezing.
1. Camera problem
If a network camera manufacturer has some defects in its own technology, network camera produced will have a relatively high latency, which will make people feel that image is stuck. If you want to restore it to normal, you can only turn camera off.
Suggestion: Look for a well-known brand with excellent technology and after-sales service guarantee.
2. Defects in control equipment technology (switches, decoders, etc.)
Problems such as switch packet loss rate, backplane bandwidth, packet rate, etc., and insufficient decode to decode capability will cause problems such as hang in monitoring system.
Suggestion: Try to choose monitoring products with a good reputation, excellent technology and guaranteed after-sales service.
3. Network cable quality is too poor
The quality of network cable used is too poor, not copper material. In general, it is recommended that maximum transmission distance of ordinary national standard network cables should not exceed 100 meters, and transmission performance of low-quality network cables will be greatly reduced. If low-quality network cables are used, it may be normal at an early stage. , it is easy to cause loss of signal transmission. Packets, unplugging and plugging, image freezing and other phenomena. In this case, during construction, it is recommended to choose a good quality network cable that meets national standard.
4. Switch selection
The choice of switcher also directly affects smoothness of image on screen. If a non-wire rate switch is selected, backplane bandwidth and packet rate cannot match requirements of device, causing screen to freeze. It is recommended to use a 100M switch for less than 8 points, and a switch with a gigabit download port for more than 8 points. If number of points exceeds 200, you should consider using a basic 10-gigabit Layer 3 switch.
5. The performance of client computer is insufficient
For customers who use computer + display and storage software, computer configuration, performance of CPU, GPU, memory, etc. will affect smoothness of monitoring screen. After counting video screens, there will be a screen hang phenomenon. At this time, you can check CPU and memory usage through computer task manager. To deal with this situation, it is recommended to use a computer with a higher configuration.
6. Wrong choice of NVR and decoder
For customers who use an HD NVR for display and storage, ability toThe decoding of selected HD Network VCR will also affect smoothness of picture. image freezing phenomenon. In this case, buyers are advised to choose big brand products, and pay attention not to connect at full load, but live with full load indicator when buying.
7. Hardware Configuration
Many users use computer + display and storage software. Computer configuration, CPU, GPU, memory and other characteristics will affect screen fluency to a certain extent. When display screen performance is insufficient, Cato phenomenon will be broken.
Suggestion: Use a computer with I5CPU, 2G or higher memory as the display storage device.