Shanghai Mo Lifeng Security Company must use the networking system provided by the public security department and register in the system to ensure safety and protect the interests of customers. The company's microcomputer needs to be connected with the public security networking system to realize timely feedback and information exchange. Public security networking mechanism is a kind of security control system, which can help security companies keep close contact with public security organs and find and solve security problems in time through technical means such as alarm and monitoring.