How to do when cameras no image at night but work well in daytime?
Sunshine
www.mvteamcctv.com
2017-06-30 15:17:43
Some security camera users encounter a strange phenomenon, the camera appear the image normally in the daytime, but no image at night and don't know what's the reason. In this post, we list some reasons which can cause the issues. Hope it can help users to solve the problem.
Power supply problem
Power shortage is the main reason for the infrared camera have not to receive images at night.Infrared camera is able to work during the day, mainly because it does not need to open the infrared light during the day, the power demand is small. However,at the night, the camera is in the light or less light environment, need to open the infrared light board to fill light, infrared light board Is the name of the "power consumption", most of the camera’s power supply are provided light board, and it will appear the phenomenon due to lack of power .If it the camera appear the phenomenon, you should check the power whether is enough to the camera at night.
The problem of infrared light board
Infrared light board is an important night vision device of the camera,it will lead directly to the infrared camera without image at night , when the hands of the infrared surveillance camera appears above the situation, you can first check whether the infrared light board was work properly.We only need to look at the normal power of the camera and check whether the infrared light board have appear a weak red light , if yes , It is proof that the infrared light board is good, if no,the board is bad , you should change a infrared light board
Filter(IR-Cut) problem
Filter is refer that transparent filter glass on the head of camera sensor, its mainly function is filter and trim the light. Filtering problem is mainly refers to the wrong red filter was used by factory, causing the camera lens to receive infrared light filtered by the filter and can not be imaged.But this problem is rare. So after you check the camera and confirm the infrared light board and power supply are no problem, then you can check the filter of the camera .
Power supply problem
Power shortage is the main reason for the infrared camera have not to receive images at night.Infrared camera is able to work during the day, mainly because it does not need to open the infrared light during the day, the power demand is small. However,at the night, the camera is in the light or less light environment, need to open the infrared light board to fill light, infrared light board Is the name of the "power consumption", most of the camera’s power supply are provided light board, and it will appear the phenomenon due to lack of power .If it the camera appear the phenomenon, you should check the power whether is enough to the camera at night.
The problem of infrared light board
Infrared light board is an important night vision device of the camera,it will lead directly to the infrared camera without image at night , when the hands of the infrared surveillance camera appears above the situation, you can first check whether the infrared light board was work properly.We only need to look at the normal power of the camera and check whether the infrared light board have appear a weak red light , if yes , It is proof that the infrared light board is good, if no,the board is bad , you should change a infrared light board
Filter(IR-Cut) problem
Filter is refer that transparent filter glass on the head of camera sensor, its mainly function is filter and trim the light. Filtering problem is mainly refers to the wrong red filter was used by factory, causing the camera lens to receive infrared light filtered by the filter and can not be imaged.But this problem is rare. So after you check the camera and confirm the infrared light board and power supply are no problem, then you can check the filter of the camera .
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