What are the safety precautions?

Safety precautions are artificial, physical and technical.

Manpower prevention is to use people's own sensors (eyes, ears, etc.). ) By means of sound warning, intimidation, setting obstacles, weapons counterattack, etc., detect and find targets that hinder or destroy safety, respond, and delay or prevent the occurrence of danger. And send out a distress signal when one's own strength is insufficient, in the hope of making further response to prevent the occurrence of danger or deal with the danger that has already occurred. Such as security, doorman, patrol, inspection, care, etc.

Physical protection mainly refers to physical barriers such as buildings, walls, fences, doors, locks and cabinets. The main function is to delay the occurrence of danger and provide enough time for "reaction". Modern physical protection is not only the passive protection of physical barriers, but more and more high-tech means are adopted. On the one hand, it reduces the possibility of physical barrier being destroyed and increases the delay time. On the other hand, the physical barrier itself has enhanced its detection and response functions.

Technical prevention refers to the use of electronic, communication, computer and information processing technology and related technologies for security prevention, such as electronic alarm technology, video surveillance technology, access control technology, biometric technology, computer network technology and related software, system engineering and other security prevention technical means.