Travel Reference
In-Depth Information
In addition, you often have the option of upgrading your current systems.
In fact, you may not need all the features offered in the top-of-the-line
models. For example, the layout of the location in question may such that
it would be absolutely impossible to tunnel underneath the fence. Perhaps
you only require a system that detects attempts at cutting through or
climbing over the fence. At the low end of the tech scale is the standard
cyclone fence topped with barbed or razor wire. These fences, of course,
can be easily defeated but may be appropriate for your needs, given a
careful evaluation of the nature and extent of the risk your site will face.
If you currently have such perimeter fences, they can be inexpensively
modified to provide more than just a physical deterrent. Magal is only one
of several companies that can adapt detection technology onto conven-
tional fences, providing increased security with a smaller capital expen-
diture. For example, the Yael-15 is a Taut Wire Intrusion Detection System
that is designed for integration with any type of wire barrier. It combines
the deterrent properties of an actual physical barrier (fence) with a highly
advanced intrusion detection system. This is accomplished by having a
sensor linked to all the fence wires through a stainless steel collector wire.
A displacement of any of the wires during an intrusion attempt causes a
change in the tension of the collector wire that the sensor translates into
an analog signal proportional to the displacement. This allows for dis-
crimination in the system, as displacement caused by a bird landing on
the fence, for example, will not trigger an alarm. The system also has what
is known as a self-balancing feature, which allows it to remain functional
even after it is severely damaged.
LICENSE PLATE RECOGNITION TECHNOLOGY
Another new and very useful technology is the recognition technology
produced by U.S. companies such as Perceptics and Israeli firms such as
Zamir Recognition Systems Ltd. This type of technology can recognize
and “read” numerical and alphabetic patterns on license plates, even while
the vehicle bearing the plates is moving at highway speeds. The Zamir
system operates in a way that makes it suitable for security-related appli-
cations. An approaching vehicle activates a trigger, which causes the system
to take an image of the entire vehicle. The image is then sent to a data
processing unit that identifies the license plate and separates and instan-
taneously recognizes each digit. The information is then stored along with
