Method for realizing active safety protection of urban dynamic population

The invention discloses a method for realizing active safety protection of urban dynamic population, wherein one end of a biological information cloud characteristic library is connected with a publicsecurity organ citizen information database, and the other end is connected to a first device and a second device respectively. The biological information in the invention is a unique biometric feature of the individual; the first device is an authentication device site that can be in close contact with a city individual, such as an authentication device for an Internet cafe, an entertainment venue, a hotel, and a social service lobby; the second device is a station, a dock, an airport in a city or various cameras in the city; the biological information cloud characteristic library stores thepersonal biological characteristics of the individual. The invention is capable of improving the rapid response speed of urban security, achieving pre-warning, timely and prompt processing, and integrating data as well as net