The intelligent comprehensive alarm system developed by Tianlong Technology for the public security command center consists of digital alarm reception and handling, electronic maps, large screen projection, image monitoring, GPS global satellite positioning, technical defense subsystems, etc. It can perform centralized or distributed comprehensive alarm reception and handling for 110119122, and is an advanced modern 110119122 comprehensive command center. The system can be integrated according to the requirements of different cities. It has the characteristics of advanced technology, flexible networking, and modular upgrading.