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Huaqiang Security Network News ]
Advantages of the electronic fence
1. The electronic fence mainframe adopts the advanced perimeter security concept of “blocking and alarming as the auxiliaryâ€, which integrates “deterrent, blocking, alarm and safetyâ€.
2, the unique touch net detection technology makes the electronic fence truly realize three alarm modes: touch net, short circuit and open circuit.
3. It is highly reliable by microprocessor control, and the keyboard operation is simple and convenient.
4, advanced pulse high-voltage output function: every line of the perimeter has an electric shock, so that the perimeter electronic fence is impeccable. Strongly block the formation of physical barriers, delay intrusion time, and strive for security.
5, the false alarm rate is extremely low, advanced alarm principle, strong anti-interference ability, accurate alarm, overcome the technical defects of infrared, microwave, electrostatic induction, etc. The various insulators on the perimeter are waterproof design, ensuring that the system can alarm while It is not affected by factors such as climate, plants and small animals.
6, no blind zone, no dead angle, the perimeter of the electronic fence can be erected with the terrain, the gates, corners can be installed.
7, safe and reliable, the system uses high-voltage, low-energy design ideas, will not pose a life hazard to the human body.
8, high and low voltage convertible mode: users can freely switch modes according to different needs. Switching to the low pressure mode during the daytime or when someone is working near the fence can reduce the pulse striking force of the front fence; at night or when high guard time is required, the high voltage pulse mode can be restored. Many electronic fence mainframes now have the function of automatically switching between high and low voltage after setting the switching time.
9, you can use mobile phone text messages for remote arming, disarming operations.
10. There is a linkage output interface, which can be linked with the monitor and alarm center. Network computer monitoring is also possible.
11, with a customized battery, can continue to work in the case of power failure, automatically converted to 220V power supply after the call.
12. Electronic cables are part of the perimeter fence, which reduces construction costs and reduces investment.
13. The electronic fence also has the advantages of beautiful appearance, convenient installation and maintenance, simple operation, no terrain limitation, and low cost.
The alarm principle of the electronic fence
1. Working principle of the electronic fence main unit After the pulse generator (host) is energized, the transmitting port sends a pulse voltage to the front fence. The time interval is about 1.5 seconds, and the pulse stays on the fence for about 0.1 second. After the loop is formed on the front fence. The pulse is returned to the receiving port of the host, which receives the feedback pulse signal; the host also detects the resistance between the two transmitters. If the front fence is broken and the circuit is broken or shorted, the receiving port of the pulse host can not receive the pulse signal or the resistance between the two transmitters is too small, and the host will issue an alarm.
2. The alarm of the fence can be known through the working principle of the electronic fence. No matter what voltage working state the pulse host is in, when the fence is damaged, the receiving port can not receive the pulse signal, the pulse host will alarm; likewise, when the two electrons When the cable is short-circuited, the resistance is very small and the pulse master will also alarm.
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