Industrial, civil and residential security solu-tion providers are experiencing an increase in the demand for additional security techniques outside the field of conventional technologies used for perimeter protection and wide area surveillance.
In recent weeks, Stellenbosch-based and radar-based solutions developer Reutech Radar Systems (RRS) has launched a perimeter and wide area intrusion detection system. The system is designed to cater to the increased demand for persistent monitoring of perimeters or strategic areas for industrial and residential asset protection.
Traditional security installations often make use of a combination of physical barriers such as fences, closed-circuit television (CCTV) cameras, fibre-optic sensors and microwave barriers, among others, to detect intrusion. RRS says sensor systems such as these have an important role to play in the security market, but points out that their performance can be dependent on operator efficiency and may provide inadequate advance warning of intrusions owing to their limited field of view, or inability to provide automatic alarms.
RRS says it has received a number of enquiries from the security industry, which is keen to enhance current security systems through the addition of radar to achieve the wide area automatic intruder detection capabilities that radar technology brings.
This led to the company developing the Perimeter Intrusion Monitoring System, or Pims, that integrates traditional technologies used for asset protection, such as cameras, with ground surveillance radar.
“The addition of radar not only provides the benefit of persistently surveying large areas, but includes other attributes such as all-weather, day/night capability and geo-referenced intruder position reporting and tracking, thereby enhancing security personnel’s ability to respond,” RRS reports.
The Pims solution provides the facility to define warning and alarm zones within its surveillance area. These zones may be set up on a geo-referenced visual map interface, with the system able to cue pan-tilt-zoom CCTV cameras to the location of potential intruders as they enter these warning and alarm zones, and thus assess the threat.
Multiple sensor/camera combinations, linked through cable or WiFi may be deployed to provide coverage along an extended perimeter line, or over a wider coverage area. The control room in which the monitoring takes place may be local (for example at the site where the surveillance is taking place) or situated remotely at any other location interconnected to the surveillance site through a Web-based operator interface.
“The benefit that radar brings to a security solution is that it is able to provide a much wider simultaneous coverage zone than cameras are able to achieve. While radar is accurately able to locate an intruder, it is, however, unable to classify the type of intruder, and thus relies on the camera to advise the operator of the nature of the intrusion. “This is especially relevant in environments where intruders may not necessarily pose a threat, such as when wildlife enters the surveillance zone.
“The net value of the radar addition is, thus, that while cameras are able to inform the operator when a perimeter is breached, radar allows an operator to establish the intent to breach, thereby increasing available reaction time,” RRS states.
Specific fields of interest and application for the system include operations against copper theft, monitoring of large areas to combat illegal mining activities, intruder detection for residential security estates and the enhancement of the surveillance of national key points such as airports, harbours, power generation plants and refineries.
The persistent wide area coverage, automatic detection, ease of classification and geo-referenced intruder position reporting that Pims offers, provides a significant step up in technology available for strategic asset protec-tion. With 26 years’ experience in radar tech-nology development and integration in South Africa, RRS believes it is well suited to address these new needs in the security market.
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