Not so very long ago, virtual perimeter fencing was no more than a fanciful idea but it is now a reality and a regular feature in the news. The security of buildings, people and animals all come into that as a virtual fence can provide very effective protection in certain circumstances. That being the case, you might wonder why it would be in the news. Well, there are several reasons, all good!
Virtual Fence Types & Applications
First of all, there many types of virtual fence systems that have been developed and each one in turn gets news coverage, particularly on a local level. When a company or local state makes a new investment in improved security, journalists are keen to highlight the use of new technologies. Secondly, the types of application for virtual fencing are extremely varied. Here are the most notable:
Virtual Fence Wildlife Management
A recent report came out of Australia earlier this month which highlights how virtual fencing is helping to protect indigenous wildlife. Around the city of Brisbane there have been many sightings of wild deer wandering from their natural habitat after dusk onto urban roads. So Brisbane City Council have started a trial using virtual fencing on stretch of road where feral deer have been seen to see if it can solve the problem.
The system is simple in principle. Every 25 metres along the road, a guardrail on the kerb has been installed with an electronic system attached to it. When a vehicle’s headlights reflect onto it, a high-pitched sonar signal (4-8kHz) is triggered. If a deer is nearby the signal will cause the animal to move away from the road. If successful, this type of virtual fence wildlife management could be used in many areas across the country to create improved safety both for the animals and vehicle drivers and passengers.
Livestock Virtual Fence Containment
Scotland’s Rural College has done extensive research on the subject of livestock virtual fencing and the use of GPS tracking collars. They concluded that in addition to the containment aspect, there are other advantages to be enjoyed from farmers’ use of virtual fencing such as farmers being able to optimize their land usage better and keep their cattle away from hazards likes bogs, gorges and water margins. Virtual paddocks are something that may well become commonplace before too long. For more on this research click here.
Virtual Fencing For Buildings & Borders
The nature of some outdoor sites which house buildings and storage facilities can sometimes prohibit the installation of a traditional, full perimeter fence (palisade or weldmesh). Usually this is due to terrain or site layout issues. Other sites where a standard perimeter fence has been installed might also have an open space within the boundary that needs a secondary detection system for additional protection.
There are a number of virtual fence systems that have been developed within this category including buried sensors, radar, infrared and microwave sensors. Some outdoor sites, such as those with national and international importance, have even deployed security systems comprising of every type of virtual fence! The US borders are now controlled with what is called a ‘full virtual system’ – in addition to physical fencing, there are buried sensors, radar, a configuration of control towers and even airborne monitoring.
Here at Advanced Perimeter Systems Limited we have focused on the design, development and manufacture of microwave intrusion detection system Microguard™ as our primary virtual fencing system. In combination with the Multisys security management system, Microguard™ can act as a virtual fence and form part of an integrated security system, helping to point a camera towards to the zone where intrusion has been detected.
The photograph above shows a storage yard belonging to an internationally famous whisky distiller in Scotland. Here a microwave virtual fence, designed and manufactured by Advanced Perimeter Systems Limited protects the valued, old oak barrels which are important in the production of the company’s famous single malt.