October 10, 2023
For development of a monitoring system, some problems are very complex and must be checked according to actual situation; while some problems are very common, once rules and causes are mastered, they can be resolved quickly.
So today I'm going to tell you about some of the most common security issues.1. Can't find ipc
Are there any problems with power supply, network and network cable?
Is Onvif switch turned on?
Is software version updated to latest?
The first question is actually very easy to understand. As a rule, IPC cannot be found. First we need to rule out problems with power supply, network and network cable;
Second question, generally speaking, NVRs and IP cameras of same brand can be found regardless of whether they are in same network segment or not.
If it is IPC Zhongwei, please confirm if this is reason why IP addresses of different IPCs are same, resulting in IP address conflicts, but only one IP address is displayed, and then search and add after changing IP- IPC addresses.
If NVR and IP camera are different brands, please go to official website of brand where IPC is located and enable Onvif protocol to solve problem.2. Resolution and display must be "combined"
Why is display effect on 5 million devices worse than on 2 million?
Taking a 5 megapixel camera as an example, if you use a 1080p screen resolution or a monitor smaller than 27 inches, image quality will be compressed and clarity will be significantly reduced.
However, if you switch to a 2 megapixel camera and put it on a 1080p monitor, since pixels and monitor just match, the image quality will not be compressed but will become sharper.
So a 5MP camera needs a 5MP display, a 4MP camera needs a 4MP display... The best display is 27 inches or larger.3. The VCR does not have a hard disk and cannot record
Generally speaking, a hard drive is not easily damaged. You might want to check these problems first: check power supply, check power supply, check power cable and data cable. Generally speaking, correct power supply should be above 12V-1.5A.
The situation where video cannot be recorded is often caused by forgetting to turn on video switch setting;
If recording goes well, but recording file cannot be found, most common cause is a wrong date setting. This happens when dates of camera and registrar do not match;
In addition, an H.265 encoded camera cannot record to an H.264 VCR, and encoding method must be set to H.264. If above two problems do not exist, we will consider hard disk and system problems.4. NVR number is offline
First, make sure NVR is connected to Internet properly. In system settings, network, confirm whether received IP address is normal. If IP address is not obtained, please try resetting DVR to factory settings. If not, it is recommended to check network connection;
If IP address is obtained normally and CloudVision status shows it is offline, change DNS to 126.96.36.199 and CloudVision port to 10000;
If this doesn't work, please update software. If issue still persists, we recommend that you perform port mapping.5. Enable wide dynamic monitoring window
Indoor monitoring often requires observing hallways, windows, etc. from indoors. Due to uneven light intensity, some areas are too bright and some are too dark.
For such scenarios, it is recommended to select an IPC that supports a wide dynamic range. If this issue occurs, enable IPC wide dynamic range to resolve issue.