1, civil air defense: personnel safety management measures. Including the training of security personnel, to ensure that they understand their job responsibilities and have the corresponding skills and knowledge. It is also necessary to establish perfect systems and regulations to supervise and manage the security forces and provide necessary assistance and support.

2. Physical defense: Physical facilities and equipment should have early warning, alarm and other means to actually resist threats such as criminal activities or accidents. Such as fences, gates, cameras, etc. Set up around the building to restrict intruders from entering, and improve the visibility of resources and property in this area by using closed-circuit television monitoring system.

3, technical defense: the use of advanced scientific and technological means to strengthen the monitoring and early warning of the target area or object, in order to improve the overall safety performance. Technical means can include video surveillance system, intrusion alarm system, intelligent access control system and other high-tech equipment. Set detection equipment at key positions, and cooperate with relevant software programs for real-time monitoring and data analysis.