Achieving Reliable Perimeter Security
Securing the perimeter of an outdoor site often comes down to a single concept: Accurate intruder detection with immediate details about the unfolding event. While there are many strategies for achieving perimeter security, combining reliable alerts with video that shows what is actually happening and where it is happening is the ultimate goal. Such real-time awareness is critical to ensuring a timely response and preventing a security incident from escalating.
This is why thermal cameras with video analytics – also known as “smart” cameras – have become the solution of choice for perimeter applications. Thermal cameras see heat rather than light, so they are perfect “human detectors” under all conditions, from total darkness to bright sun in rain, snow or humidity. They extend the capabilities of people to detect much further – hundreds of meters – and eliminate the expense, power and difficulty of lighting large outdoor perimeters.
At one time it was thought that guards could watch video from cameras placed around the site to “catch” intruders entering the perimeter. But experience shows that even the best security guard will get tired looking at screens – usually within a matter of minutes.
Thermal cameras combine detection and surveillance in the best way – they never tire and rarely miss an intruder, while guards alerted with reliable alarms and video of the event can respond quickly to stop the event in real time.
Perimeter Protection in Depth
Early and accurate detection is essential to achieve a high level of vigilance. Smart thermal cameras like the SightSensor have been designed to detect perimeter intruders over large outdoor areas, excelling in the role of early-warning detectors. Given their expansive coverage, they can trigger alarms when intruders even approach a facility, creating ample warning of the threat and giving security extra time to intervene.
Some sites need to secure both the perimeter and sensitive areas throughout the facility. SightSensors are a good tool to protect internal assets where physical or man-made boundaries are unlikely to exist, and where physical barriers would be ineffective. Adding infrastructure around sensitive areas would be costly and likely impede the flow of business operations. Smart thermal video can be used to create a “buffer zone” around areas of special concern to control access based on time of day or other criteria, mitigating possible sabotage or theft from insiders.
The GPS-based analytics built into SightSensor cameras play an important role here as well. They can be used to create multiple security zones where alerts are only triggered if an intruder is moving in a certain direction that might indicate a threat, such as toward a fence. If that same intruder climbed over the fence and reached the inside yard, another security zone can be created that sends an additional alert for another area.
Perimeter Detection Accuracy and Reducing Nuisance Alarms
SightLogix has a long and successful history solving outdoor detection problems for sites where security really matters. Where missing intruders is unacceptable. Our company was founded on a single premise: To create the most reliable outdoor intruder detection system available, while being easy to use and affordable for all businesses.
Specifically, SightSensors from SightLogix are smart thermal cameras with a high degree of image processing for addressing all the challenges associated with outdoor security. This includes stabilizing the image to stop camera motion from wind or vibrations, using georegistration to filter out the movement from trees, leaves and small animals, and accurately detecting people the instant a security rule has been violated.
This reliability is born out in real-world applications. A nine-month, multi-season SightSensor test conducted by the TSA at wintry Buffalo-Niagara International Airport concluding that after 900 attempts to defeat the system, “every alarm instance was accurately reported.” At another site, a video monitoring firm’s testing of the SightSensor for perimeter security customers showed a 35-1 reduction in false alerts compared to alternatives.
Longer Ranges Decrease Perimeter Security Costs
The same processing used for accurate detection also gives SightLogix cameras extended range and coverage, automatically detecting human-sized targets at ranges that can exceed hundreds of meters.
This means fewer SightSensors are needed for large perimeters, lowering infrastructure requirements accordingly. The cost savings realized from extended camera range can be as high as 50 percent, stemming primarily from elimination of extra cameras and poles, construction, trenching, power and network connectivity. These infrastructure costs can be the most expensive portion of an outdoor video deployment, and using longer range cameras keeps them low.
Learn more about the SightLogix outdoor video security system here.