Vibration-seismic perimeter detector “BOS” is our best offer for budgetary perimeter protection.
“BOS” allows you to connect three types of sensitive elements, including combining them, to create an optimal system for the specific perimeter location, type of fence and type of intruder expected.
The signal from each input is processed separately with separate issuance of an alarm notification, thus,one detector has two protection zones
The signal entering the BOS from the sensitive elements is divided into 10 frequency bands in the range of 0.75…800 Hz frequency band is processed separately: each adaptive thresholdthat adapts to environmental noise and eliminates the influence of weather factors such as rain, wind and hail**
- For each band, the number of exceedances threshold signal is counted.
Next, the voting procedure, which takes into account the number of excesses in each of the included frequency bands, and their weight in deciding whether to generate an “alarm” notification.
A distinctive feature of the BOS detector from most competitors is the ability to flexibly select operating frequency subranges - out of ten proposed for reliable operation, two are enough, which allows tuning to any type of fence while maintaining high sensitivity even in complex interference environment, and free configuration software makes the process simple and straightforward
to each detector input: -Up 200 meters of triboelectric cable TD-1 -Up 40 vibration sensors VD-2 -Up to 20 seismic sensors **SD-2
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Triboelectric cable TD-1 - converts the vibrations of the fence caused by the intruder at the moment of penetration into the protected perimeter into an electrical signal due to the triboelectric effect. The cable is the cheapest and simplest sensitive element - installation consists in attaching the cable to the protected surface with the help of cable ties. If the cable is broken or damaged during operation, it can be repaired without the use of special tools.
TD-1 can be used in three options for constructing a guard line: 1) The cable can be mounted directly to a mesh or wire fence, a fence made of thin boards, pickets, thin metal (corrugated board) or polycarbonate. Thus, it is possible to protect the perimeter both from climbing the fence, and from its destruction (overshot, bending, etc.).
- The cable can be mounted to a hanging fence made of AKL spirals, canopies made of tin or polycarbonate. In this way, it is possible to protect against climbing the fence by a trained intruder using a ladder or to protect capital fences made of concrete or brick.
- The TD-1 cable buried in the ground can be used as an anti-undermining tool. The sensitivity of the cable is sufficient to detect a person digging the ground with a bayonet shovel at a distance of one to five meters, depending on the type of soil and detector settings. Detection of earthworks using heavy equipment is possible at a distance of up to thirty meters, which allows the cable to be used as a security or warning tool for underground utilities.
Vibration sensor VD-2 converts the vibrations of the fence caused by the intruder at the moment of entering the protected perimeter into an electrical signal using the piezoelectric effect. The main difference between the VD-2 sensor and the TD-1 cable is the localization of sensitivity in the place of the direct installation of the sensor, which allows for a more flexible approach to choosing the location of the sensor (for example, to mount it on gates or gates) and reduces the negative effects from vibrations of poorly fixed sections of the fence relative to support pillars.
VD-2 is mounted directly to a mesh or wire fence, a fence made of thin boards, a picket fence, thin metal (profiled) or polycarbonate. Thus, it is possible to protect the perimeter both from climbing the fence, and from its destruction (overshot, bending, etc.). It is recommended to place the sensors five meters apart or on each section of the fence.
SD-2 seismic sensor converts ground vibrations caused by an intruder at the moment of penetration into the protected perimeter into an electrical signal using the piezoelectric effect. The seismic sensor is characterized by the highest sensitivity due to the use of a special mechanical signal amplifier operating in the entire band of processed frequencies.
Placing sensors at a distance of five meters from each other guarantees the detection of an intruder in any weather conditions (including partial waterlogging) in any type of soil.
Sensors can be buried: - In front of or under the fence to detect the fact that an intruder approaches the protected perimeter even before touching the fence - Inside the protected perimeter to detect the immediate fact of breaking the perimeter - In any place where detection of people or equipment is required , regardless of the presence of physical fences there, including for the formation of an invisible line of protection
The high sensitivity of the SD-2 sensors allows them to be used to protect capital fences made of concrete or brick, both from destruction and from climbing.
The presence of two inputs for the “BOS” detector allows you to combine different sensing elements with each other. For example, when moving from a mesh fence to a permanent one, you can use VD-2 vibration sensors in one arm, and a TD-1 triboelectric cable in the other:
Also, one detector allows you to build two security lines in one protected area, for example, use VD-2 point vibration sensors to protect the fence from destruction (overbite, bending, etc.), and the TD triboelectric cable -1 from climbing the fence by a trained intruder using a ladder:
Or use VD-2 point vibration sensors to protect the fence from destruction (overbite, bending, etc.), and the TD-1 triboelectric cable as an anti-undermining tool:
Connection to control panel and integration
The detector has two “Alarm” notification transmission loops, one for each security zone. One common loop for transmitting a “Fault” notification - so it can be directly connected to any receiving device that has “dry contact” type inputs (for example, Car Signal-10, Signal-20, etc.).
BOS detectors can be combined using the RS-485 interface and KX-EX devices - this way you can build a perimeter up to 2400 meters
The “BOS” detector is software integrated into the Intellect software (ITV)
