CCTV Injury Channel broadcast the fifth episode of the "Brilliant China" documentary series, mentioned: China has now built the world's largest video surveillance network -" China Sky Net ", more than 20 million video footage, and the use of artificial intelligence and big data for police speculation, in China is not only comprehensive, and the level of the international front. Compared with the global shopping malls, in the context of the rapid development of the economy and the increasing demand for domestic security, China's security profession has completed the rapid growth, and the career planning has ranked first in the world, but the coverage rate of cameras is much lower than that of developed countries, and the service level of information skills also needs to be improved. The security profession has grown rapidly, with China's output reaching 540 billion yuan in 2016