The perfect team: 5 benefits of combining video and radar technology
When it comes to surveillance, high-resolution video technology is the standard. But what happens when this technology can no longer cope with the requirements? The idea of expanding security systems with radar overcomes an array of possible problems associated with video surveillance that uses only one technology.
The growing demand for security and the expectations that go with this are forcing manufacturers of security applications to constantly optimise and develop their products further. Some challenges, however, cannot be overcome by one technology alone, and instead new concepts are required such as the combination of radar technology and CCTV. The security industry will benefit long-term from these four advantages of the exemplary duo:
1. Four eyes see more than two
Radar technology works like an additional pair of eyes for long distance: the electromagnetic waves have high coverage, are able to penetrate plastic and fog, and have no blind spots. Equally, objects hidden behind shrubs or trees are able to be made visible due to their movement.
Since the ideal range of vision varies considerably depending on the customer’s requirements, the surveillance zone needs to be defined in exact terms. With the assistance of radar, this existing configuration option also allows customised danger zones to be integrated. In a customer-specific implementation scenario, for example, a combination of a high-resolution security camera for the area nearby (danger zone 1) and a radar sensor for the distance (danger zones 2 & 3) would be one option for monitoring the situation and / or approaching target.
Video surveillance is primarily designed to detect, monitor small distances and areas of coverage. A look further afield, however, can be worthwhile: dangerous situations can be spotted early and, especially when a security threat looms, rapid and prompt action is essential. The sensor’s extended range of coverage gives security personnel valuable response time if a suspicious object is approaching the surveillance zone.
2. Reliable monitoring despite disruptive factors
The addition of a radar sensor offers surveillance option that is independent of the weather. If environmental conditions mean that video technology is temporarily disabled, then the security of the outdoor area remains protected. An additional filter also eliminates small animals, insects and other unnecessary disruptive factors.
In relation to security especially, it is important to be able to rely on the technology you have chosen. There are, however, factors that cannot be influenced and which limit the problem-free functioning of video surveillance. In practical situations, this means false alarms or an incorrect assessment of the threat situation. One classic example of this is video surveillance’s dependency on the weather. Fog or rain can not only dampen spirits, but can also obscure the view of the camera. A low-lying, blinding sun, light reflections from nearby windows or unfavourable shadows also have a negative impact on the quality of the video material. And if the weather cannot be held responsible, tiny creatures such as spiders wandering in front of the camera can be another cause of misdetections.
3. On the safe side with anonymous tracking
Radar-assisted camera surveillance provides the answer: the sensor first detects an approaching object. As soon as the target is located on the property, the radar system sends a signal to the camera to start recording. While CCTV is able to trump radar in terms of person recognition in high quality on the company premises, objects outside the company’s grounds are captured with radar in accordance with data protection regulations.
As data protection standards become increasingly strict, this issue will continue to be accorded considerable importance in future by experts. Radar-based security applications solve the problem – one that should not be underestimated – of compliance with data protection legislation. When monitoring company premises or similar outdoor areas, a clear distinction must be made between private land and public areas. Video recording only meets legal regulations if the monitored area is owned by the company itself and that clear notices have been put up informing people that video surveillance is in operation. People who do not remain on the private land must only be recorded anonymously.
4. More information for more security
Some radar systems are smart and learn as they go along. With artificial intelligence, a distinction is automatically made between relevant and inconsequential detections. The improved analysis option makes the everyday work of the security industry significantly easier.The decisions as regards potential security threats are based more, thanks to this additional information, on verifiable data and less on the experience or personal judgements of security personnel.
Classified objects, the mapped behaviour and the information on the speed and distance all help to evaluate the risk situation and allow the necessary security measures to be initiated promptly.
By upgrading the security camera with a radar system, the image material is enhanced with additional information. The radar sensor provides information about the distance, speed, position and angle of all objects detected. This allows behaviour patterns to be clearly mapped out. The detection of typical movement patterns such as someone creeping along or someone spying from a distance are very helpful for the risk analysis process.
5. Greater efficiency through savings
The use of the movement detector function for demand-led video recording is already known from the classic PIR sensor. Radar technology also controls the use of video recordings so that the camera is only switched on if objects are actually located within the recording zone. This saves electricity and increases energy efficiency. If the CCTV’s standby mode is actively used, the almost insurmountable flood of data is reduced, as is the amount of storage space required. The powerful computer systems are placed under significantly less strain through the targeted use of comparatively processor-intensive video technology. Less current consumption, less memory and more available computing power also result in cost savings. The interaction of the radar sensor and CCTV combines only the best of both technologies. The advantages of the camera, such as the high-resolution, realistic image in real time, are primarily used for person recognition and the documentation of events. The discreetly integrated radar sensor focuses on the error-free execution of security services. This additional technical reliability makes working in the security sector much more agreeable and efficient. The monitoring of outdoor areas especially benefits from the synergy effects of the two security applications. Together, radar and video technology make an unbeatable team for the future of security surveillance.
Money can also be saved when procuring a video camera provided a radar-assisted system is chosen. Cameras that are designed to cover as wide an area as possible (even in poor light conditions) with maximum detail are extremely expensive. With a combination device, the resolution of the camera does not need to be designed for the far distance. Distance monitoring is taken care of by the additional radar sensor. On a day-to-day basis, security personnel are able to focus on urgent risk situations since they are largely spared from the tasks of constant video monitoring and responding to false alarms.
The interaction of the radar sensor and CCTV combines only the best of both technologies. The advantages of the camera, such as the high-resolution, realistic image in real time, are primarily used for person recognition and the documentation of events. The discreetly integrated radar sensor focuses on the error-free execution of security services. This additional technical reliability makes working in the security sector much more agreeable and efficient. The monitoring of outdoor areas especially benefits from the synergy effects of the two security applications. Together, radar and video technology make an unbeatable team for the future of security surveillance.