August 10, 2016

Underground Perimeter Intrusion Detection Systems

The SP2400SA  is a buried system which detects the seismic waves generated by a person walking on surfaces with no concrete foundations (lawn surface or covered with gravel, asphalt or interlockings). It creates a completely invisible detection bandwhich, according to the customer’s needs, can protect the terrain all around the target area or can be employed along pathways or driveways.

SP2400SA uses special “geoseismic” sensors composed of a piezoceramic transducer and prewired along a cable provided with rodent-proof armour: each sensor-string has been designed to resist the chemical and organic substances present in the soil and  does not need any maintenance. Thanks to the absence of active electronic components, the detectors are not subject to electric failure.

The sensors are installed at 60cm underground, therefore they are compatible with normal gardening jobs and maintenance activity on the surface (such as hoeing and reasphalting activities). Such a feature, together with the sensor technology and the sophiticated analysis algorithms, guarantees a very high tolerance towards climatic variations.

For an easy and quick installation of the system, the sensors are provided in prewired strings of 10, 30 or 50 metres. These three different lengths enables you to dimension the alarm zones according to the kind of surface and the type of perimeter to be protected.

Along a SP2400SA sensor-string, the sensors are alternately assembled on two different communication lines (A and B), so that the intruder could generate a signal on both of the lines at the same time. In this way, the processing board receives a “double consent” (AND detection) to discriminate possible environmental nuisances from real intrusion attempts.

SP2400SA system provides the alarm signals through dry contacts, but it can also use SAT Patrol NET centralization network and integrates  other SAT Patrol Security’s systems or 3rd party devices.