The construction environment of water conservancy monitoring equipment is mostly exposed to the harsh outdoor application environment for a long time, so it often faces more severe tests. And because the river covers a wide range, and the upstream area is located in the sparsely populated wilderness, the number of street lights is usually small. Therefore, some cameras installed in the upper reaches of the river can obtain clear images during the day when the light is sufficient, but at night when the sky is dim. You will face the problem of insufficient light and cannot capture clear images.

In a stormy weather, if the rain is too heavy, it will also affect the camera's line of sight. Only blurry images can be collected. Even if the video images can be smoothly transmitted to the centralized control center, the administrators cannot see clear images. Although the camera has installed a small wiper in front of the lens, this problem cannot be completely solved.

In the project design and planning, it is recommended to match auxiliary light sources such as traditional lights, infrared lights, spotlights, etc. However, due to the large monitoring range, if the shooting distance is too far, the light supplement effect is not good, and the image will still be unclear and waste The high cost.

Therefore, in addition to paying attention to the height and position of the light source when it is necessary to install auxiliary light sources, it is more important that when purchasing, the low illumination of the camera must be specifically required to reach a certain level. Well, it can save unnecessary auxiliary light source expenses.