China's perimeter security alarm industry started relatively late; to this day many places still use fences and walls as protection measures. Electronic fence, now prevalent in perimeter protection, was introduced from abroad and processed and modified to become today's new perimeter protection equipment. It has been updated many times, with its performance gradually improved, and can be linked with computers, cameras, phone alarms, network alarms and other devices, with remarkable protection effects.
In recent years, Shanghai, Guangzhou, Shenzhen, Jiangsu, Zhejiang and other places have begun to introduce electronic fence, which has gradually gained recognition from users and is now promoted on a large scale.
At present in China's perimeter security market, the Infrared Beam Detector is well known and widely used because it was introduced early and its technology is relatively mature. In addition, microwave, leakage cable and laser beam detectors are also seen in some applications. However, with the development of technology and increasingly stringent protection requirements, traditional perimeter alarm systems such as infrared detection can no longer meet people's security needs in many scenarios due to their own shortcomings and limitations. For example, the Infrared Beam Detector now has three widely criticized shortcomings:
First, the active infrared beam detector has a relatively high false alarm rate and is greatly affected by external environments such as trees, pets, rain and fog; frequent false alarms often cause complacency or annoyance among guards, and some are even simply turned off.
Second, it has high requirements for the installation environment, and installation is relatively complex and time-consuming.
Third, maintenance costs are also relatively high.
Aiming at these three shortcomings of the Infrared Beam Detector, the electronic fence performs remarkably well in these three aspects!
First, low false alarm rate, basically unaffected by the environment and pets.
Second, simple installation, with low requirements for the installation environment and conditions.
Third, simple and convenient repair and maintenance, requiring almost no further maintenance costs.
Among electronic fences, the Pulse Electronic Fence is even better, adopting the multi-protection function of "first deterrence + then obstruction + finally alarm", denying every intruder the chance to commit a crime!
Deterrence: the Pulse High-Voltage Electric Fence first gives would-be intruders a strong deterrent, making them shy away.
Obstruction: a pulse electric shock is then given to persistent intruders to make them leave; the fence made of several wires effectively prevents people from climbing over.
Alarm: for intruders who forcibly cut or short-circuit the wires, the system host immediately generates an alarm signal and can start surveillance linkage and other devices, notifying guards to handle the alarm immediately and prevent problems before they occur.
Although by comparison the Infrared Beam Detector seems to have no advantages, its shortcomings can also be its strengths. The reason it is prone to false alarms is its high sensitivity and wide protection area, and it uses invisible infrared beams when operating, providing a concealed defense method that makes intruders trigger the alarm unknowingly. Therefore, in the protection of important cultural relics and confidential items, the Infrared Beam Detector is also a primary choice.
It is simply that the electronic fence is more suitable for the crowded and noisy urban life, so people naturally lean toward the electronic fence when choosing. Just as "every trade has its master", different perimeter equipment has its own advantages. What we can do is to maximize its strengths and minimize its weaknesses, making it easier for people to use.
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