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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62 Security Dealer & Integrator / October 2018 In general, LiDAR costs more than an average ground-based radar sys- tem. Both technologies can be easily mounted onto existing structures, eliminating the need to dig trenches and run excess cabling. Radar can also be low-power con- sumption devices; and some can be solar-powered. Long-Range Detection As Zussman explains, a single ground-based radar can reach up to 100 degrees in azimuth and 30 degrees in elevation – such expansive azimuth and elevation capabilities enable a single radar to cover an area with changing topography without the need for additional units. "Where 12 fixed surveillance cam- eras would be required for protecting an industrial facility, the same cover- age could be achieved using a single radar unit," Zussman says. "Weather and environmental conditions such as rain, snow or fog – which commonly plague video surveillance systems – do not affect radar." Another defining characteristic of radar technology is its long-range detection capabilities that enable early detection and alerting. When radar is deployed around the perimeter of a facility, approaching suspects will be automatically detected far away from the perimeter and security personnel will be alerted long before they reach the fence line. "Commercial radar is beginning to penetrate the security market, providing great detection for targets more than half a mile away," Zussman says. Because radar's radio waves have less absorption compared to the LiDAR's light waves when contacting objects, they can work over a longer distance and are oen used in air- planes and battleships to detect poten- tial threats hidden by weather condi- tions such as fog, rain, and snow and dust. In fact, Zusmman says the great- est differentiator between LiDAR and radar can be seen in field deployments with adverse weather conditions. "LiDAR can be easily affected by fog, rain, or even dust," Zussman says. "Light waves have short wave lengths – less than one-millionth of a meter to be exact – meaning they are easily absorbed by water droplets in the air. On the other hand, radio waves reach up to around five centimeters in wave- Linking radar with video surveillance and VMS enables security personnel to watch and track threats in real-time with the ability to intervene immediately. Perimeter Security Most LiDAR imagery has color gradients that indicate an object's elevation, and provides detail in three dimensions, which is useful in identification. Image: Velodyne Photo: Magos

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