Security Dealer & Integrator

OCT 2018

Find news and information for the executive corporate security director, CSO, facility manager and assets protection manager on issues of policy, products, incidents, risk management, threat assessments and preparedness.

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64 Security Dealer & Integrator / October 2018 length, meaning that water droplets in fog, rain, snow or even sand allow them to sim- ply pass through." In cases where water droplets may be an issue, Sur- faro says LiDAR should be used with secondary sensors such as cameras and ultra- sonic sensors. Integrated vs. Standalone To create an effective perim- eter intrusion detection solution, radar is usually integrated with a video sur- veillance system. "A key benefit of radar is that it seamlessly integrates with other security and sensory tech- nologies to create a total perimeter solution that reduces response time," Zussman says. "By integrating radar with a video surveillance system, the radar can automatically cue pan-tilt- zoom cameras to the location of an intruder, giving security officers a visual verification of the threat and allowing security personnel to keep eyes on the suspect as the individual moves. e VMS can then overlay the tracks of the trespasser onto a map of the property, providing even greater situational awareness. Linking it all together, security personnel can watch and track threats in real-time with the ability to intervene immediately." Surfaro agrees and adds that using radar to guide PTZ camera systems can significantly lower security costs by decreasing the number of cam- eras needed to monitor a site. "is method also covers a large area and in many cases eliminates video analytic soware licensing costs," he says. A system of LiDAR sensors, on the other hand, does not need surveil- lance cameras to recognize objects, the direction they are facing and their trajectory. "Because radar ren- ders a point or less recognizable 'blob' and the direction it is mov- ing, the video surveillance camera(s) are required to confirm the type of object," Surfaro says. Accuracy and Definition According to Surfaro, radar is less angularly accurate than LiDAR, as it loses the sight of a target on curved pathways with a potential of confu- sion if multiple objects are placed very close to each other. "For exam- ple, radar may consider two small cars in a vicinity as a single, large vehicle and indicate an incorrect dis- tance," he says. "Most LiDAR imagery has mean- ingful color gradients indicating the object's elevation, and superlative detail in three dimensions, which is useful in recognition," Surfaro adds. "In contrast, typical radar imagery is monochromatic, rendering objects as 'blobs' of similar shades." In the security industry, integrators and customers are oen tasked with mitigating or detecting the threat of people breaching a perimeter to do harm. LiDAR not only detects people walking around an open area or inter- section but it can also tell which direc- tion they are facing. "LiDAR's data rendering is highly detailed and accu- rate, enabling a security operator to accurately predict where a person will walk or a vehicle is driving, or how far into a perimeter a drone hovers," Sur- faro says. "is high level of (detail) enables the user to even see details like a person stealing high-value refined copper stock or holding a large auto- matic weapon." On a clear night, it is possible to see these details even two football fields away from a stationary or moving LiDAR device with very high accu- racy, Surfaro adds. Using this degree of accuracy, LiDAR has been used in recent smart city test initiatives in Las Vegas to help keep pedestrians, drivers and road workers safe. A pedestrian enter- ing a crosswalk as traffic signals are changing, or a vehicle is stuck in an intersection results in traffic being automatically stopped in all direc- tions. "Waymo's LiDAR system not only detects pedestrians but it can also tell which direction they are facing," Surfaro says. "us, LiDAR enables perimeter protection systems to accurately predict where a thief may breach a protected space or where a pedestrian will walk." VisonLidar software from Geo-Plus includes an object recognition tool to automatically detect and recognize the geometry of an object. Perimeter Security Image: Geo-Plus

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