Cameras can be divided into two types according to the way of recording signals.

According to the transmission signal, the camera can be divided into two types: digital signal and analog signal.

the wireless mode is to only arrange the power cord at the installation location for monitoring system power supply, and the transmission signal is carried out by wireless WIFI coverage, which is very consistent with the situation that WIFI coverage is getting wider and wider now, and now the wireless device technology is mature, which can fully meet the demand of monitoring high-definition transmission. If possible, it is best to use a single broadband to transmit signals, or do a good job of shunting, so as to avoid affecting the normal Internet access function.

According to the camera resolution, it is divided into

1. The image pixel is about 25, pixels, the color resolution is 33 lines, and the black-and-white resolution is about 42 lines.

2. The image pixel is between 25, and 38,, the color resolution is 42 lines, and the black-and-white resolution is below 5 lines.

3. The image is over 38, points, the color resolution is greater than or equal to 48 lines, the black-and-white resolution, and the high resolution is over 57 lines.