On Taobao there is a IP-2031 network video server, buy, there are two USB ports on it, and a network interface, as long as the webcam is inserted into one of the USB ports, and then use the network cable to connect the router or ADSL cat with the video server, you can, if you install the two, then the total cost of the total cost of probably not more than
Generally, if the simple monitoring, 300,000 cameras will be enough, the pixel is too high if your network speed does not meet the requirements of the camera even if the higher pixel is useless, because the higher the pixel, the image of the larger the data per frame, corresponding to the network bandwidth requirements are also relatively high.
When the camera is connected, it should be noted that the network cable can be up to 50 meters long, but the USB connection between the camera and the network video server can only be up to 4 meters, thus, it is best to connect the camera with the webcam. As for the monitoring software, it can be downloaded from the Internet, and it is possible to enter the URL on any computer with Internet connection. (Password verification is required.) There is no need to install any software.
The second program:
There is a kind of IP Camera webcam (Zhongxing Micro's), each priced at 498 yuan, available on Taobao, after buying it, the network cable will be plugged directly into it, this kind of camera with a PTZ, can be rotated, and the function is much more powerful than the first one, and with infrared night vision, even if there is no light at night, it can be seen. As for the monitoring software, it comes with the camera when you buy it. And it is also equally possible to view the images directly in IE browser like the first option. No need to install any software; If you install two, you can buy there is a kind of USB that can be plugged in externally, about the price of 680 yuan or so, or buy two 498.