Surveillance & Security
How our drones help
Surveillance is the close observation of a person, group of people, behaviors, activities, infrastructure, building, etc for the purpose of managing, influencing, directing, or protecting. There are also several different methods of surveillance. Methods include GPS tracking, camera observation, and stake-outs, Additionally, you can use data mining, profiling, and biometric surveillance.
Traditional observational surveillance methods are typically limited by the stationary nature of the camera. The camera is therefore usually handled manually or fixed upon a tripod or other structure. Aerial surveillance with a helicopter achieves the desired result but is also very costly.
Unmanned aircraft systems provide the ideal solution to the problems and limitations faced by other surveillance methods. Drone surveillance presents an easier, faster, and cheaper method of data collection. Consequently, there are also a number of other key advantages. Drone planes can enter narrow and confined spaces, produce minimal noise, and are equipped with night-vision cameras and thermal sensors. For this reason, they provide imagery that the human eye is unable to detect.
UAVs can quickly cover large and difficult-to-reach areas, reducing staff numbers and costs. They additionally do not require much space for their operators.
Tactical Drone
Object tracking is key to security and surveillance operations. With the advances in low altitude fixed-wing VTOL and Multirotor drone technologies with their ability to hover in the vicinity of a ROI or POI, mobile airborne object identification and tracking has become a reality.
Tactical Drone Gimbal
A major development for security and surveillance industries is the recent design of a tactical gimbal for a tactical drone. The gimble is specifically capable of keeping a moving target of interest at the center of the image plane. Additionally, there is a Region-of-Interest (ROI) that encloses the target’s image generated through the combination of a visual object detector and a visual object tracker.
The proposed solution combines a fast and reliable deep learning visual object detector and tracker. Specially suited for low computational power implementation with built-in capabilities to guarantee convergence of the target image to the origin of the image plane. It also reaches the extent of human face detection and tracking.
Features
Direct drive torque motor stabilization produces stable video even at 30x optical zoom or up to 1.3° vertical field of view. The Tactical Gimbal is also available with multiple sensors, including a high-sensitivity 640×480 IR night sensor with a unique 60 mm IR lens.
Electronic Video Stabilization with roll correction, removes the high-frequency jitter often found on small unmanned aircraft platforms. This significantly reduces the operator workload and allows it to concentrate on the mission objective.
The Tactical Gimbal will automatically hold the video centred on the scene, independent of the aircraft movement. Encoder The video is encoded with H.264 compression format to support IP datalink options and to explicitly reduces datalink system bandwidth requirement.
Onboard Video Processor
All high-performance long-range gimbals today have an onboard video processor which is a dedicated hardware processor that receives the video stream from the sensors inside the gimbal, processes the video and sends it to the datalinks. This processor performs:
- Software stabilization of the video stream.
- Encoding of the video stream ( H.264 format) prior to sending the video can be sent through an IP datalink
- Object tracking. Video processor steers the gimbal to maintain the object of interest inside the video frame, even if the object is moving and the aircraft platform is moving.
- The operator can also designate a moving or static target and the gimbal will lock into this target for hands-free tracking of moving objects.
- The target will additionally remain locked even if the aircraft platform is moving or loitering.
- The target will also remain locked if the object is moving relative to the platform, for example if the moving vehicle is tracked on a highway.
- Operator can zoom in to the narrowest FoV, while the gimbal will remain locked on the target.
- For long range surveillance applications the automated object tracking function is critical as the operator would not be able to zoom into the target and keep the target in the video frame manually.
- Scene steering is a similar function, but also keeps the entire scene in the video frame.
- Roll Correction of the video corrects the disturbances in the roll axis.
- Moving Target Indication or MTI – available with the newest generation of high performance miniature gimbals.
Additional image processing of the gimbal:
- Overlays on the video
- Digital zoom
- Video and snapshot recording to internal flash drive
- Multi camera presentation, such as picture in picture or image blending.
Nextech UAV Platforms
Nextech recommends the Nextech Solution with LiDAR and 4k optical zoom sensors for Surveying and Mapping Applications.
Nextech recommends the Atlas-T solution with thermal and optical zoom sensors for Surveillance and Security Applications. This solution is particularly effective for flying over populated areas as drones can recover and return to home in case of major system failure. The Nextech Security solution is the ultimate security and surveillance drone and you will never require any other.
At Nextech we focus on the design, manufacture, and marketing of long-range UAVs for industrial strength commercial use. With endurance times of up to one 1 hour, and payloads of up to 8kgs, Nextech Drones’ long-range UAVs have huge benefits for business and commerce. Solutions can also be developed to meet specific client requirements, and services can include support and training during and after implementation.
Nextech has a strong team of engineers dedicated to their customers. We additionally service an international base of clients ranging from South Africa to the UAE. Clients include representatives from the following industries: Infrastructure, Security, Real Estate, Security, Agriculture, Game Farms, Wildlife Management, Electrical Installations, Telecommunications, Wind farms.
