To avoid the waste of human how to eliminate the phenomenon of false alarm - alarm, false alarm - Security Industry

To avoid the waste of human how to eliminate the phenomenon of false alarm - alarm

, false alarm - Security Industry

Recently a good friend I work unit safety precautions in order to better do the work, in their work units equipped with relatively complete Monitoring System This could have been one pair of units and workers are all very good thing; but their annoyance has cropped up. The reason is that they installed Alarm Frequent false positives, such as frequently as their alarm monitoring some small animals within the alarm signal is issued, or monitoring Environment Change the alarm occurs, such as temperature, light and other changes. Occurrence of these cases, the security personnel rushed to the scene promptly after receiving the alarm, only to find that a false alarm. Alarm was originally to help people to safety precautions, but because Technology Was the cause of false positives, once the cause false positives, then the trouble will be very big, and the lightest consequence is to increase the number of unnecessary trouble, affecting people's normal life and work, people feel tired, thus greatly reduced the credibility of alarm; serious consequences is the alarm sounds the alarm, making even the police and security personnel rushed to the scene unnecessarily, wasting a lot of police, but also the normal life of people around the cause affected. How to solve the false alarm has become the current face of the problem.

Analysis of what caused the false alarm

The author's friends for the false alarm issue was asked to solve this problem, I summarize the current monitoring system in the false positives because of the following areas:

1, infrared intrusion alarm to the judge is not accurate enough, resulting in false positives.

2, infrared alarms caused by external environmental factors false positives, such as by temperature, light and other environmental factors; also air flow, pet actions and other factors.

3, Host And alarms are set using the wireless encoding encoding, because the host and the alarm caused by repeated high regard yards leading to false positives.

4, wireless alarm system anti-jamming capability for the relatively poor performance likely to cause interference with the frequency of false positives.

5, there are some alarm, but the quality of relations, such as component damage, and poor production techniques will result in false positives.

6, human factors can also cause false alarms, user actions such as improper, careless trigger alarm, strayed, strayed into the zone has been fortified and so on would produce false positives; there a way to install equipment, angle and position does not fit can cause false positives.

How to reduce the false alarm

General, produce false positives of the reason is very complicated, if it is to reduce Alarm Device of false positives, the most important thing to consider from a variety of factors. Example, choose from a performance and technical aspects of alarm, this alarm options, including sensors, Fresnel lens shape design, the microprocessor program, multi-Kam-technology, automatic rolling code hopping technology, production processes, use , temperature compensation, sensitivity, detection range adjustment. These combination of factors above are determined alarm performance and the incidence of false positives. If we can solve the above-mentioned factors, will improve the performance of alarm, false alarm rate can be reduced significantly.

The design of a new generation of infrared alarm, the light of these factors, a series of improvements, with some unique technology, to a certain extent, improved the performance of alarm. Example, the focus of the infrared lens on the application of two different circuits are connected to light and heat Inductor , So, special lens will cover the region into multiple sensitivity ladder of protected areas ensure the protection of the region's signal strength. Unique infrared lens can also act as filters, the surface of treated black visible and shortwave infrared lens allows into the goal, and then absorbed by their black base.

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