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GPS Perimeter Systems – Системи охорони периметру. | biznestype : | Manufacturer |
| Company name : | GPS Perimeter Systems Ltd | |
| Street : | 14 Low Farm Place, NN3 6HY | |
| City : | Moulton Park | |
| Website : | www.gpsperimeter.co.uk/ | |
| E-mail : | sales@gpsperimeter.co.uk | |
| Phone : | +44 1604 648 344 | |
| Fax : | +44 1604 646 709 | |
| Country Name : | Велика Британія | |
GPS Perimeter Systems Limited are experts in the provision of cost effective external perimeter security systems for detection of intruders outside - before they can do any damage.
The careful application of external intruder detectors can provide significant cost savings in terms of manpower, loss recovery and damage limitation, quickly recovering the initial capital outlay. However, it is more difficult than designing systems for the controlled environment found inside most premises.
We need to have a system that not only suits the type of perimeter but also one that can perform equally well in all extremes of weather conditions.
After all, 4am on a January morning in Norway is a different world from 2pm on a July afternoon in southern Spain.
Not only is the weather variable but also the site layout will be different for almost every site we have to consider. There may be a fence or a wall (or both), the site may slope or undulate, the shape of the perimeter will certainly be different and we may want to keep people in rather than out.
A principal requirement is how to interface the system with existing facilities, in particular CCTV surveillance systems, so that the correct response is generated in any particular situation.
From this it is obvious that there is unlikely to be one system that can cope with all the variables and that some experience in the application of systems is essential before any buying decision is made.
System types include invisible buried detection systems, fence mounted microphonic cable systems, microwave barriers, infrared beams and barriers, taut wire and fibre optic detection systems. All these can significantly enhance the security of any perimeter.
This is where GPS Perimeter Systems Limited come in.
 | Perimeter Systems Ltd specialise in the provision of security systems for intruder detection in an outdoors environment Perimeter Systems Ltd specialise in the provision of security systems for intruder detection in an outdoors environment |
 | Buried Detection Systems The main feature of these types of system is that they are invisible once installed and therefore difficult for an intruder to locate. They can follow the shape and contours of irregular boundaries and are not constrained to "line of sight" applications. This makes them ideal for irregular shaped sites. This means that they do not require a specific physical barrier such as a wall or fence It is essential that they work under many different surfaces such as grass, gravel, asphalt and paving. We have different systems available to suit different applications (click on the name to see more information): |
 | Fence Mounted and Taut Wire The main feature of these types of system is that they are simple to install and unobtrusive. They follow the shape and contours of irregular fence lines and are not constrained to "line of sight" applications. This makes them ideal for irregular shaped sites. This means that they do, usually, require a specific physical barrier such as a wall or fence, although the Taut Wire systems can form their own physical barrier It is essential that they work on many different types of structure such as chain link, welded mesh and palisade fencing. The Taut Wire systems must also have a free-standing capability We have different systems available to suit different applications: |
 | FPS - Fibre-optic Cable Detection System The FPS detection system is based on a fibre optic cable that has the highest level of detection while at the same time has a very low false alarm rate. It is completely immune to electromagnetic interference generated by fast transients of current /voltage or atmospheric phenomena (lightning). The system is particularly suited to deployment in the protection of gas, water and oil pipelines where the main pipe is above ground. The fibre, clipped to the pipe, will detect attempts to drill into or damage the pipe and pass this information back to the processing unit. At least 20km of pipe can be protected in this way using a single fibre. Principle of Operation A mechanical disturbance on the fibre (generated by vibration, pressure or movement) changes the light transmission characteristics of the fibre. The changes are very small but using a very accurate light source (such as obtained with a laser diode) and with a very sophisticated amplification and processing system it is possible to generate a voltage signal that is similar to that generated by a microphonic cable (see the CPS Plus perimeter protection system). The laser diode injects an impulse of coherent light into the optical fibre. This light propagates along the fibre and is reflected from the extreme opposite end of the fibre. An inteferometric analysis between the light transmitted and the light reflected allows the generation of an optical signal that is converted by an opto-electric converter and sent to a processing unit. The processing unit passes the electrical signal to an analogue bus and generates two synchronisation signals: one to the coherent light generator (laser) and one to the zone processing devices. The zone processors operate in a very similar way to the microphonic cable sensor (CPS Plus) and, like these, are compatible with the COM115 bus, used in the latest generation of perimeter sensors, managed by the UCP2000/MX2000 system. |
Buried Detection Systems
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PPS Position Sensing System
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