Not long ago, the security check machine at the transfer station of a delivery and logistics company in Xiangtan City, Hunan Province suddenly issued a "tick tick" alarm. At the same time, the person in charge of the express transfer station and the mobile phone of the police in the local police station also received an early warning message of "suspected contraband found". After the police rushed to the scene, they found a lathe tool suspected of machining the barrel. According to the information displayed in the express bill, the public security organ successfully cracked a case of online gun manufacturing and trafficking, arrested 39 suspects and seized 62 guns of all kinds. Yi Zhengliang, the second level senior police chief of the Public Security Detachment of Xiangtan Public Security Bureau, introduced that it was difficult for employees of express transfer stations to manually identify gun parts and controlled knives through security inspection machines in the past. Since last June, public security organs have installed graphic comparison information systems for easy gun articles on security inspection machines in all express transfer stations and bus stations in the city, which can accurately compare and warn gun parts and controlled knives. In October this year, a trouble occurred near a primary school in Yuetang District, Xiangtan City. The school security guard on duty pressed the "one button alarm" button at the school gate, and the police of the police station rushed to the scene to deal with it 1 minute and 50 seconds later. The "one button alarm" button, which played a role in this event, is a new type of equipment of Xiangtan Public Security Intelligent Internal Protection System. Liang Changlong, director of Wulidui Police Station of Yuetang Branch of Xiangtan Public Security Bureau, said that in addition to the one button alarm, the most intelligent part of the system is the "cloud eye". It can integrate the high-definition camera at the entrance of the campus and the surrounding social surveillance video, and automatically identify suspicious persons and give early warning when necessary. In recent years, Xiangtan City has requested police force from science and technology, actively promoted the construction of "one platform and nine systems" (command platform and security for major events, smart internal security, smart community, smart patrol, public security checkpoints, public transport security, traceability of dangerous explosives, management and control of entertainment places and special industries, and graphic comparison of easily made firearms), and promoted the implementation of the concepts of "preventive policing" and "hidden danger clearing". At the same time, Xiangtan collected and integrated 1260 types of internal and external public security data, basically realizing the timely access to the network of "people, land, things, things, networks" and other security elements under its jurisdiction. Technology provides the information collection terminal and big data analysis platform for building the public security prevention and control system, but the human factor is the key to better play the technical efficiency. Not long ago, Peng Wenzhi, the head of the pedestrian street police station of Xiangtan Public Security Bureau, and Zhou Yangfang, the people's mediator, successfully handled a conflict. It turned out that a pharmacy in the pedestrian street closed down due to poor management, and more than 10 shareholders and employees were preparing to rush into the store to empty the inventory of drugs to recover losses. "We found this problem in time through the street platform and intelligent patrol, and invited the parties to the mediation room of the express police station. From 9 a.m. to the afternoon, the crowd finally dispersed, and the economic dispute did not turn into a public security case." Zhou Yangfang said. Peng Wenzhi introduced that since the people's mediators were stationed, the incidence of cases around the pedestrian street fast police station has dropped by 30%, and the conflict resolution rate of mediation cases in the past three years has reached 96%. Xiangtan Public Security Bureau promoted the full coverage of on-site mediation for common conflicts and disputes such as family, neighborhood, marriage and debt. At the same time, for key places such as schools, hospitals and gas stations within the jurisdiction, we will establish the safety prevention work of "people's livelihood service+technology empowerment"