Surveillance cameras have sub-lens sizes, 6, 8, 10, 12mm and other lenses. 0.3 MP MIPI CSI camera ，The smaller the range, the larger the visible range, but the effect may not be obvious in the far place, while the large lens can see a small range, and the far place can be seen clearly.
The range of a surveillance camera is 20-30 meters, depending on what type it is. There are two kinds of radar and infrared. Generally, the lights that can be seen from the outside are infrared and have a night shooting function.
Surveillance cameras usually have the basic functions of camera/transmission and still image capture, which are collected by the lens, the image processing of the camera's internal circuits and control elements, and the digital signal recognizable by the computer. , and then connect through the parallel port or USB, and restore the image after entering the computer through the software.
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How to choose a home surveillance camera
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