The surveillance of narrow strips along perimeters such as fences, buildings or roads, often referred to as sterile zones, is one of the most demanding requirements for physical security. Until now, video systems as the leading system on the perimeter have often failed to meet user expectations, particularly in high-security environments; unsatisfactory detection performance, high false alarm rates and, above all, the fact that the analytics are easy to manipulate are often cited as disadvantages. Other shortcomings include poor image quality and high infrastructure costs, particularly due to the large number of cameras required. The new Panomera S4 Perimeter from Dallmeier promises to help.
Equipped with a neural network specially trained for perimeter protection, the Panomera S4 Perimeter reliably recognises people with unusual body postures such as bent over, crouching or lying down and movement patterns such as very slow, very fast or crawling. People wearing camouflage such as Camouflage Central Europe, British Smock or Ghillie are also reliably detected.
Perimeter AI and AI tamper detection
The advanced AI tamper detection application supports the detection of tampering attempts that are typically expected at a perimeter. In addition to classic methods such as twisting, defocusing, spray-painting and covering the camera or IR illumination, blinding the camera with a laser pointer, flashlight or strobe light is also reliably detected. Furthermore, indirect tampering is achieved by deliberately fogging the detection area with pyrotechnics such as smoke grenades or smoke pots, which is detected and an alarm is triggered. The combination of both evaluation techniques provides optimum detection of intrusion attempts with a very low error and false alarm rate.
The S4 Perimeter has outstanding low-light performance. The latest generation of sensors is three times more sensitive to infrared light than its predecessors and delivers results even in low-light conditions. With a dynamic range of 130dB, it can accurately capture details at distances of up to 200 metres, providing results even in difficult lighting conditions. With the specially developed AI Perimeter application, users can define specially protected areas with pre-zones. When relevant objects (people, vehicles, etc.) enter these zones, it is possible to escalate messages to focus operators’ attention on the most important events.
Optimum geometry
The camera’s special perimeter geometry minimises blind spots and avoids capturing uninteresting areas beyond the fence – an important privacy benefit. Depending on the model, the sensors are oriented to the right or left and arranged in perspective. This means that even unusual postures and movements can be detected. The camera detects the upper body of a standing person from a distance of as little as 4 metres, enabling targeted surveillance without unnecessarily covering adjacent areas.
“With the Panomera S4 Perimeter, Dallmeier is setting a new standard in perimeter protection; where previously several cameras, complex infrastructure and costly analysis were necessary, now a single system every 200 metres is sufficient,” says Thomas Reisinger, CTO of Dallmeier electronic. “Our specially trained perimeter AI reliably detects even the most challenging scenarios, such as crawling people in camouflage or complex manipulation attempts. This is a real revolution in the field of perimeter security, especially for operators of critical infrastructures and organisations that are directly or indirectly affected by NIS-2 and the other CRITIS directives.”
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