What are the definitions of civil air defense and physical defense?

1, civil air defense, physical defense and technical defense are three kinds of safety precautions. Civil air defense and physical defense, as the name implies, are security precautions through manpower and material resources, such as personnel patrolling and standing guard. With the continuous progress of science and technology, these traditional preventive measures are also constantly integrated into the content of new technologies.

2. Civil air defense. The basic manpower prevention is to use people's own sensors to detect, find targets that hinder or destroy safety, and respond; Use sound warning, intimidation, setting up roadblocks, weapons to fight back and other means to delay or prevent the occurrence of danger, and send out a distress signal when one's own strength is insufficient, in order to expect further response to stop the occurrence of danger or deal with the danger that has already occurred.

3. Physical defense: The main function of physical defense is to delay the occurrence of danger and provide enough time for "reaction". Modern physical protection is no longer a simple passive protection of material barriers, but more and more high-tech means are adopted, which on the one hand reduces the possibility of physical barriers being destroyed and increases the delay time; On the other hand, it also increases the detection and reaction functions of the physical barrier itself.

4. Technical defense. Technical prevention means can be said to be the extension and strengthening of the functions of civil air defense means and entity prevention means, and it is the supplement and strengthening of civil air defense and entity prevention in technical means. He should be integrated into civil air defense and physical defense, so that civil air defense and physical defense can continuously increase the high-tech content in the three basic elements of detection, delay and response, and constantly improve the detection ability, delay ability and response ability, so that the preventive measures can really play a role and achieve the expected purpose.