Many customers have bought video security camera but don’t know how to install it, especially some home users. Because the number of camera is small, if you hire professionals to help install , the installation fee will be not more and maybe nobady will do it. It's not cost-effective. This artical...

In recent years, the social environment has become increasingly complex and accidents have occurred from time to time. Public safety has become the focus of global attention. With the help of professional technical means to analyze and identify monitored objects, post-observation has developed to the current stage of pre-prevention. As...