White light day and night full-color surveillance cameras do not turn on the white light at night generally because of these 3 reasons: 1. Although it is night, the environment is not dark enough to cause white light. Day and night full-color surveillance cameras will not turn on the white light at night. The brighter…
1. The performance of infrared high-definition cameras. The worst case is also the most likely: the infrared high-definition camera performance is very poor, I have seen poor infrared high-definition cameras: 30 meters nominal can only see 5-10 meters, of course, there is no object near you, of course, everything Invisible. This situation can only be…
1. The video cable of the surveillance camera is in poor contact, check the interface between the surveillance camera and the display; 2. The video signal of the surveillance camera is too weak, replace with a better wire or; 3. Surveillance camera video signal interference, check whether there is high-power equipment such as strong magnetism…
1. Directly connect the surveillance camera and the hard disk video recorder with a short-distance cable, and check whether the fault still exists. If there is no interference, check whether there is a strong current or a strong magnetic field near the line of the current surveillance camera with interference and replace the power supply…
The backlight phenomenon at entrances and exits is a more prominent problem in the installation and use of video surveillance. To solve this problem, we have not found a completely effective method. The three methods introduced below have a certain effect on improving the backlight phenomenon. We are using In the process, it is necessary…
According to the classification standard, the classification is as follows: 1. According to different transmission signals, it can be divided into analog cameras and digital cameras; 2. According to the different screen resolutions, it can be divided into the standard-definition camera and high-definition camera; 3. According to the shape of the camera, it can be…
How far and wide the surveillance camera can see is determined by the camera head. The effective range of all camera shots varies according to the size of the lens. The following is the size of the fixed camera lens and the size of the illuminated area: the correspondence between the lens, 1/3″ CCD, 1/4″…
Definition: 1080P picture quality is preferred At present, the mainstream smart cameras on the market have two specifications, 720P and 1080P, which can meet our requirements for image quality. However, we recommend that you choose 1080P as a priority. The overall image quality of 1080P is more delicate and clear. We all know that the…
1. Security issues: Ordinary USB cameras are based on the Windows operating system of the PC and must be plugged into the computer for use. In terms of security, image quality, and other performance aspects, it is not as good as surveillance cameras. 2. Wiring problem: first transmission distance The installation of surveillance cameras generally…
1. The difference in nature: The wireless surveillance camera is a new type of surveillance camera that embeds the wireless receiver into the network camera. The wired surveillance camera is a semiconductor imaging device with the advantages of high sensitivity, anti-glare, small distortion, small size, long life, and anti-vibration. Surveillance camera security system. 2. The…
