Dead Angle and Blind Zone Affecting the Reliability of Household Alarm
Posted: Thu Feb 21, 2019 3:21 am
Burglary and robbery may occur at any time and in any country. It not only seriously endangers people's property and life security, but also is a social security problem that is difficult to solve thoroughly. Although organs, enterprises and institutions can send people on duty, install video surveillance and alarm emergency devices to prevent the crime, but there will still be some cases of theft and robbery.
For the general public, there is also a certain sense of prevention. For example, early anti-theft nets and anti-theft windows have a certain security effect on the home, but in actual use, they expose many hidden dangers, affecting the city appearance, hindering fire escape, providing favorable conditions for thieves to climb and steal neighbors, and causing civil disputes of rust falling and injuring people, etc.
With the development of science and technology, there are many video surveillance and intelligent anti-theft and alarm electronic products on the market, which provide favorable conditions for security prevention and rapid cracking of cases. Because human pyroelectricity, microwave and gate magnetism are widely used as detectors, alarm trigger signals can be obtained from their unique properties of small changes in physical quantities. However, some blind areas or dead corners, changes in the external natural environment, as well as the limitations of some physical properties of detectors, will bury hidden dangers of false alarm or missed alarm.
In order to develop the market rapidly and extensively, the manufacturers of alarm devices design large size open-ended alarm detectors to facilitate users to install themselves, which provides the conditions for thieves to destroy targets or counter-alarm actions, leaving a crime space in the gap between open-ended and anti-alarm, which seems to be clothing, but is virtual.
Therefore, we should not only summarize the problems existing in the security alarm market, but also study the social structure of the population in the period of highly developed economy and science and technology. When the Gini coefficient of the gap between the rich and the poor exceeds the internationally recognized security police line, some people take theft and robbery as their profession calmly because of the psychological imbalance of some people, the increase of the floating population and the forced excuse of life. But go, after leaving prison, resume the old business - gang, commit crimes frequently.
In people's normal life, although the number of thieves who steal or rob is very small, the number of people who encounter theft is also small, but the consequences caused by this cause serious harm to society. Therefore, we should pay attention to the installation and use of monitoring and security telephone alarm.
For the general public, there is also a certain sense of prevention. For example, early anti-theft nets and anti-theft windows have a certain security effect on the home, but in actual use, they expose many hidden dangers, affecting the city appearance, hindering fire escape, providing favorable conditions for thieves to climb and steal neighbors, and causing civil disputes of rust falling and injuring people, etc.
With the development of science and technology, there are many video surveillance and intelligent anti-theft and alarm electronic products on the market, which provide favorable conditions for security prevention and rapid cracking of cases. Because human pyroelectricity, microwave and gate magnetism are widely used as detectors, alarm trigger signals can be obtained from their unique properties of small changes in physical quantities. However, some blind areas or dead corners, changes in the external natural environment, as well as the limitations of some physical properties of detectors, will bury hidden dangers of false alarm or missed alarm.
In order to develop the market rapidly and extensively, the manufacturers of alarm devices design large size open-ended alarm detectors to facilitate users to install themselves, which provides the conditions for thieves to destroy targets or counter-alarm actions, leaving a crime space in the gap between open-ended and anti-alarm, which seems to be clothing, but is virtual.
Therefore, we should not only summarize the problems existing in the security alarm market, but also study the social structure of the population in the period of highly developed economy and science and technology. When the Gini coefficient of the gap between the rich and the poor exceeds the internationally recognized security police line, some people take theft and robbery as their profession calmly because of the psychological imbalance of some people, the increase of the floating population and the forced excuse of life. But go, after leaving prison, resume the old business - gang, commit crimes frequently.
In people's normal life, although the number of thieves who steal or rob is very small, the number of people who encounter theft is also small, but the consequences caused by this cause serious harm to society. Therefore, we should pay attention to the installation and use of monitoring and security telephone alarm.