To install a security video surveillance system outdoors, there are two conditions required for cameras to work normally, one is to have a power supply to charge camera, and another one is have a network to transmit video signals. there are many methods for signal transmission of the network camera,

At present, the development history of our country’s security industry has been 35 years, and the security industry has also completed a complete system. Especially in recent years, the security industry has started from product structure (video surveillance, building intercom, intrusion alarm, inte