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…
