The three basic elements of security guard are detection, delay and reaction. Detection (Detection) refers to the perception of profiling and hidden risk event and alarm delay; (Delay) refers to the extension and put off the risk event process; reaction (Response) refers to the rapid action organized forces to stop the occurrence of risk events.
In the three basic means of security, to achieve the ultimate goal of prevention, we must focus on the three basic elements of detection, delay and response, and take measures to prevent and prevent the occurrence of risk events. Of course, the three means of prevention in the implementation of the process of prevention, the role of different.
Civil air defense
Human means of prevention based (air defense) is the use of sensor (people's eyes, ears, etc.) to detect, respond to prejudice or damage found the goal of safety; voice warning, intimidation, roadblocks, weapons and other means to delay or prevent the occurrence of danger, but also issued a call for help in their own lack of strength. In order to make a further reaction to stop dangerous occurrence or processing has occurred.
The main function of physical defense is to postpone the occurrence of danger and provide enough time for "reaction". Modern physical prevention, is not a simple physical barrier of the passive defense, but more and more the use of high-tech means, on the one hand the real barrier is broken, the possibility of smaller, increase the delay time; on the other hand, the physical barrier itself to increase the detection and response function.
The means of technological prevention can be regarded as the extension and enhancement of the means of human prevention and entity prevention. It is the supplement and enhancement of human precaution and entity prevention in technological means. It should be integrated into the prevention and prevention of human entity, to prevent and prevent human entity increase high-tech content in the middle of the three basic elements of detection, delay and response constantly, constantly improve the detection capability, delay ability and reaction ability, which means to prevent really play a role, to achieve the desired purpose.
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