1. CCD board computer Bai In the surveillance camera, the CCD board machine is the heart of the whole camera, which directly affects the imaging effect of the camera. There are domestic daosony, original Sony, sharp, NVP, Hitachi, etc. in the market. In the s...

General infrared camera 3.6-bai6mm camera is usually within 40 meters Du, belonging to the indoor machine zh and the door dedicated to wide-angle lens Dao. The lens with an angle of more than 6 mm belongs to a narrow angle lens, and the effective distance is g...

Solution: 1： Power supply problem, replace the power supply. 2： The problem of infrared lamp is returned to the factory for maintenance. The daytime image is normal, and the infrared light is not turned on at night, so it may be that the infrared light i...