How to choose a home surveillance camera?

Home surveillance cameras can be selected by camera resolution, lens focal length, night vision function, storage capacity and intelligent function.

1, camera resolution

Usually, the first thing that comes to mind when choosing a camera is high definition, that is, the resolution of the camera. At present, the resolution of mainstream household surveillance cameras on the market is generally around 2 million to 4 million, which is enough to see the faces and action expressions of Chu people clearly in indoor environment. Of course, if the budget is sufficient, there are higher requirements for the clarity and monitoring distance of the surveillance video, and a higher resolution can be selected as needed.

2. Lens focal length

The lens of the monitoring camera is its core part, which determines the monitoring angle range and monitoring distance. Usually, the larger the focal length of the lens, the farther you look, the smaller the viewing angle range, the smaller the focal length, and the closer you look, the larger the viewing angle range. At present, most domestic indoor surveillance cameras use 2.8-4 mm lenses, which can monitor every corner of the room horizontally 360 degrees without dead ends.

3. Night vision function

At present, the mainstream surveillance cameras on the market all support infrared night vision, including starlight night vision, full color night vision and black light night vision.

4. Storage capacity

From the perspective of cost performance, indoor surveillance cameras generally use memory cards to store video files. So when choosing, you can do a simple calculation according to the resolution of the camera and the expected storage period, and roughly estimate the required space. It should be noted that different brands of camera video coding and calculation methods are different, and the code stream itself can also be adjusted in camera settings.

5. Intelligent functions

With the development and popularization of AI, many intelligent AI technologies have also been applied to surveillance cameras, including human body detection, face recognition, motion tracking, crying detection, abnormal sound detection and other functions, which makes surveillance cameras have greater application space.

6. Others

Other factors to be considered include installation method, waterproofing, privacy protection, etc. You can choose according to your own preferences.