Page 20 - Security Today, March 2020

Alerting on Sound Patterns
Two-way audio has been a staple of video cameras for decades. Adding audio analytics takes this feature to a whole new level. When you equip a surveillance system with intelligent ears, it can detect and identify sound waves that might indicate a problem or a threat and trigger an alert. Today we have audio analytics designed to detect and recognize gunshots, breaking glass, car alarms, even voice patterns that indicate anger, stress or fear.
Integrating analytics other physical security systems. Because video and audio analytics are embedded in the network camera, they can be programmed to automatically trigger specific re- sponses from other systems on the network. For instance, video analytics might trigger a network speaker to warn trespassers that they’ve been spotted, which generally deters them from breaching the perimeter.
Gunshot detection could trigger an automatic lockdown and call to police over the property’s VoIP phone system. Aggression detection could alert security when a peaceful protest at the gate starts to sound like it’s turning into an angry mob.
At the end of the day, it’s all about the data: capturing it, man- aging it and using it to prevent events or, when that’s not possible, intercede before things escalate.
Analytics give you an important perimeter security advantage.
It is important to remember that perimeter protection doesn’t just involve the outer limits of a facility like the parking lots and the roads abutting the property. It includes the sub-perimeters within
a facility as well. That could be anything from a data center to a narcotics cabinet, from a high-asset equipment shed to critical process machinery.
From a security perspective, advanced video and audio ana- lytics provide reliable ways to monitor and assess the actions of people, cars, objects and equipment and trigger alerts when po- tential threats are imminent. It’s a true force multiplier, especially for organizations with limited resources for around-the-clock se- curity personnel.
If past experience has made you leery of analytics, the time has come to put aside your bias. Just like the early failures of the Wright brothers eventually led to commercial aviation, the early disappointments in intelligent video eventually led us to today’s smarter, more reliable technology.
Intelligent analytics not only detect unusual movement, sounds and behaviors – they’re able to quickly categorize events while they’re still on the perimeter. Because the data is more comprehensive and reliable than network sensors alone can pro- vide, security is able to quickly verify the situation and avert po- tential threats before any harm is done. That’s
what safe, effective perimeter security is really all about.
Joe Morgan is the segment development manager, Critical Infrastructure for Axis Communications Inc.
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