The concept of security technology prevention

According to the current Chinese dictionary, the so-called safety means no danger, no infringement and no accident; The so-called prevention means preparedness, vigilance, preparedness means preparing for an attack or avoiding victimization, and vigilance means preparedness and protection.

Based on the above explanation, can we define security as: preparing and protecting against attacks or avoiding victims, so that the protected object is in a safe state without danger, infringement and accidents? Obviously, safety is the goal and prevention is the means. It is the basic connotation of safety prevention to achieve or realize the purpose of safety through preventive measures. Security in Chinese has two interpretations in English: security and security. The Modern Advanced English-Chinese Dictionary published by Oxford University mainly explains the word security: safety, safety, security, insurance (lock), insurance (box) and so on. The main explanation of the word "security" is: security, worry-free, things that provide security and avoid danger or worry, collateral, collateral, security (police), security (troops) and so on.

In fact, security in Chinese is a kind of security in a broad sense, which contains two meanings: one refers to the security of natural or quasi-natural attributes, corresponding to the security in English, and the other refers to the security of social humanity, that is, the security with obvious attributes, corresponding to security. The damage to the safety of natural or quasi-natural attributes is mainly not caused by people's purposeful participation; The destruction of social humanity is mainly caused by people's purposeful participation. Therefore, security in a broad sense should include two meanings: security and security, and what we often say about security mainly refers to security in a narrow sense, which is what foreign countries usually call "security". -The inherent meaning of safety precautions.

In the west, the word "safety" is not used, but loss prevention &; The concept of crime prevention. Just as Chinese safety and prevention are used together to form a new compound word, in the west, loss prevention and crime prevention are also used together. Loss prevention and crime prevention are two aspects of security. In foreign countries, loss prevention usually refers to the focus of social security industry, while crime prevention is the focus of police law enforcement departments. The organic combination of the two can ensure social stability and security. In this sense, loss prevention and crime prevention are the essential contents of security precautions.

To sum up, security is not only a public security business (police executive department), but also a social public and socio-economic undertaking. Their development and progress not only depend on the development and progress of science and technology, but also provide and create a good social environment for the progress and development of science and technology. Security is a part of social security, and security industry is a branch of social security industry. As far as preventive measures are concerned, safety preventive measures include three categories: human preventive measures, physical preventive measures and technical preventive measures. Among them, civil air defense and physical defense are ancient traditional preventive measures and the basis of safety prevention. With the continuous progress of science and technology, these traditional preventive measures are also being integrated into the content of new technologies. The concept of technical prevention is a new concept in the process of modern science and technology (initially electronic alarm technology) being applied to the field of safety prevention and gradually forming an independent prevention means.

Due to the continuous development and popularization of modern science and technology, the concept of "technical defense" is more and more deeply rooted in people's hearts, more and more recognized and accepted by public security law enforcement departments and the public, so that it has become a new vocabulary with high frequency of use, and the content of technical defense is constantly updated with the progress of science and technology. In this era of rapid development of science and technology, it can be said that almost all high technologies will be transplanted and applied to security work sooner or later. Therefore, the position and role of "technical prevention" in security prevention technology will become more and more important, bringing a new revolution in security prevention.

The three basic elements of security are detection, delay and response. Detection refers to sensing the occurrence of explicit and implicit risk events and giving an alarm; Delay refers to the process of prolonging and delaying the occurrence of risk events; Response refers to the rapid action taken by organizational forces to prevent the occurrence of risk events. Among the three basic safety measures, in order to achieve the ultimate goal of prevention, we should carry out work and take measures around the three basic prevention elements of detection, delay and response to prevent and prevent the occurrence of risk events. Of course, these three preventive measures play different roles in the implementation of prevention. Technical prevention means can be said to be the functional extension and strengthening 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. It 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 continuously improve the detection ability, delay ability and response ability, so that the preventive means can really play a role and achieve the expected purpose.

Detection, delay and response are interrelated and indispensable. On the one hand, the detection should be accurate, the delay time should be appropriate and the response should be rapid; On the other hand, the total time of reaction should be less than (at most equal to) the total time of detection plus delay.