Radar signals should also be generally less affected by rain or snow. Unnecessary, or false, alarms can typically be caused by effects such as moving shadows or light beams, small animals in the scene, rain drops or insects on the camera lens, movements caused by the wind, or bad detection system based on Radar will only detect physical movement in a scene, ignoring purely vi-sual effects such as shadows or light beams. In case a forensic search would be needed in alarm-triggered recordings, it could be very time consuming to go through the recorded material if there were many false alarms.Ĥ Motion detection systems often use video analytics applications that are triggered by a certain amount of pixel changes in the surveillance scene. For example, alarms are often used to trigger a video recording. See Chapter 5 for a more detailed comparison between Decreased false alarmsReducing the number of false alarms, while maintaining the detection efficiency of real incidents, is es-sential in surveillance. Radar can also provide more information, at a longer range, than a PIR motion detector. Radar is easier to use, and more affordable, than a thermal camera. However, surveillance based on Radar can be a cost-efficient alternative to both solutions. There are other surveillance technologies that may also work in such conditions, for example thermal cameras equipped with video analytics, or PIR-based (passive infrared) motion detectors. Darkness, fog, or even moderate rainfall does not impair the detection abilities. ģ Reliable in challenging conditionsBy nature, Radar surveillance is not dependent on visibility. The detected signal provides information that can be used to determine the location, size, and velocity of the object that was Why use Radar in surveillance ?Due to its superior detection abilities in darkness or fog, a motion detector based on Radar can be a cost-efficient complement to other types of surveillance. A small portion of the signal may be reflected back to the Radar device, where it will be detected by a receiver. When a Radar signal hits an object, the signal is reflected or scattered in many direc-tions. It was developed for military use in the 1940s, but is now widely used in civilian applications, for instance weather forecasts, road traffic mon-itoring, and collision prevention in aviation and Radar device transmits signals consisting of radio waves, or electromagnetic waves in the radio fre-quency spectrum. Owing to its advanced tracking algorithm, it is not only an affordable complement to security cameras, but it can also add valuable features to a surveillance IntroductionThis white paper discusses Radar technology in security applications, and compares it with other avail-able technologies.Ģ It also provides specific information about axis D2050-VE Network Radar Detector, its usage and its What is Radar ? Radar is a well-established technology for detecting objects. Useful links 83 SummaryUsing Radar technology for detection can reduce the number of false alarms and increase detection ef-ficiency in conditions with poor D2050-VE Network Radar Detector is axis first available Radar -based motion detector. axis network Radar detector Detection range and installation Include/exclude zones Tracking and classification Application features Action rules PTZ autotracking Open positioning information Limitations 75. Why use Radar in surveillance ? Reliable in challenging conditions Decreased false alarms Complement to cameras 44. Owing to its advanced tracking algorithm, it is not only an affordable complement to security cameras, but it can also add valuable features to a surveillance IntroductionThis white paper discusses Radar technology in security applications, and compares it with other avail-able technologies.ģ Summary Using radar technology for detection can reduce the number of false alarms and increase detection ef-ficiency in conditions with poor visibility.ġ White paperRadar technology in surveillanceOctober 2017 Table of contents1. White paperRadar technology in surveillanceOctober 2017 Table of contents1. Example: bankruptcy Search Radar technology in surveillance - Axis …
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