A brief discussion on why perimeter alarms use electronic fences instead of infrared counter-shooting
Publish Time: 2025-06-03
My country's perimeter security protection alarm system products started relatively late and are not widely used. Many places only have railings and wire fences. Although some places have installed infrared detection products, the false alarm rate is high and the maintenance cost is high, the effect of use is not obvious. Some people even joke that "infrared counter-shooting is useless."With the development of my country's economic construction, perimeter security prevention work is increasingly attracting attention, especially important facilities related to national economy and people's livelihood, such as airports, substations, telecommunications base stations, oil wells, water stations, military facilities, etc. This requires a product that can play a role in security protection and is safe and applicable. A brief discussion on why perimeter alarms use electronic fences instead of infrared counter-shootingElectronic fences have been developed and used abroad for more than 70 years and have undergone several generations. Nowadays, the comprehensive use of computers, cameras, alarms, linkages and other high-tech means has made the product more mature and the prevention effect is very obvious. It is currently a new type of perimeter security protection equipment in the world.In recent years, Shanghai, Guangzhou, Shenzhen, Jiangsu, Zhejiang and other places have begun to introduce electronic fences, and have gradually been recognized by the majority of users. Now it has been promoted on a large scale. At present, there are more than tens of thousands of users in my country.The emergence of electronic fences has changed people's understanding of the concept of security protection work. The original security measures mainly rely on the care of on-duty personnel and infrared monitoring. It belongs to human defense. The false alarm rate is high, the maintenance cost is high, there are many human factors, and the protection effect is not obvious. It is mainly based on reporting and arresting after the case occurs. The incident has occurred, causing economic losses and social impact, and it is difficult to solve the case. The new security concept is to block the main and alarm as a supplement. With blocking, alarming and monitoring as a whole, the system gives instantaneous pulse electric shock to the intruder. It has a very strong deterrent effect. Prevent the occurrence of incidents, reduce the workload of post-incident processing, and reduce the social crime rate. Electronic fences can be used in conjunction with warning lights, alarms, cameras, etc. It can be remotely monitored. It can be intelligent.At present, in my country's perimeter security market, active infrared counter-radiation is familiar and widely used because it was introduced earlier and the technology is relatively mature. In addition, we can also see that microwaves and leaky cables are used in some occasions. With the development of science and technology and increasingly rigorous prevention requirements, traditional perimeter alarm systems such as active infrared detection are difficult to deal with illegal intruders who are becoming more and more clever in their means of committing crimes due to their own characteristics and limitations, and still leave some hidden dangers to people's lives and property safety. A brief discussion on why perimeter alarms use electronic fences instead of infrared counter-radiationActive infrared counter-radiation:(1) Active infrared detection has a high false alarm rate and is greatly affected by external environments such as trees, pets, and rain. Frequent false alarms often cause paralysis or boredom to the on-duty personnel.(2) It has high requirements for the installation environment and the construction is relatively complex and time-consuming.(3) The maintenance cost is also relatively high.Electronic fence:The pulse electronic fence perimeter blocking alarm system, which has gradually emerged in the domestic market of my country, has begun to be gradually recognized and accepted by more and more people due to its own advantages and characteristics:(1) "First deterrence + then blocking + then alarm" triple protection functionA. The pulse high-voltage power grid first gives a strong deterrent to the attempted intruder, making him stay away.B. The determined intruder is then given a pulse electric shock to prompt him to leave; the fence composed of several wires effectively prevents human climbing.C. For the intruder who forcibly cuts or short-circuits the wires and attempts to intrude, the system host immediately generates an alarm signal and can activate the monitoring linkage and other devices to notify the on-duty personnel to immediately deal with the alarm and prevent it from happening.(2) Low false alarm rate, basically not affected by the environment and pets.(3) Simple installation, with low requirements for the installation environment and conditions.(4) Simple and convenient repair and maintenance, basically no maintenance costs are required.
