There’s no doubt – this year’s hottest new tech gear is the drone, or as known as, Unmanned Aerial Systems (UAS). And while commercial use of drones is still largely prohibited, there is an application-development rush that will help accelerate the fast-growing use of drones by both hobbyists and professionals.
Drones are now capable of bringing new value and new options to many applications, from helping farmers locate their animals to improving broadcast coverage of outdoor events. But no application has more potential to save lives than utilizing drone-mounted cameras to solve some of the vexing security challenges of our day.
There are three technology improvement areas that are key enabling factors for leveraging surveillance cameras aboard drones.
The first of these is the capability of small drones to carry high-quality cameras. In this area, both sides of the equation are seeing improvements – drones are increasing their capacity with stronger, lighter batteries, motors, and airframes, and high-quality cameras have become smaller and lighter. Today, the largest of the small multi-rotor drones, with 8 rotors and designed for maximizing the payload, can easily carry high-resolution cameras with both visible and infra-red capabilities.
The second enabling technology area is the availability of light, capable camera gimbal mounts that provide vibration isolation and camera positioning and control. Today, many models are available to mount a wide range of cameras, including unobtrusive miniature models, DSLRs, and up to small cinema-quality cameras. Products range from inexpensive isolating mounts all the way to sensitive motorized mounts, from providers including DJI, Storm, Tarot, and others. These are a critical advancement, because otherwise the vibration of the drone rotors and environmental effects can negatively impact the video quality.
The third critical enabling technology is that of the wireless link to the camera. Wireless signals are used to control the drone itself, enabling a pilot to control the position of the drone and maneuver it as needed. For this use, any latency at all in the signal could cause problems; the camera operator must be able to see exactly what the camera sees in real time. New products like Amimon CONNEX now on the market transmit full HD video with zero latency. This level of visibility and control is needed so that the security operator can control the camera to capture the intended subject matter.
By combining the capabilities of these enabling technologies, video-equipped drones can be tailored to meet the needs of specific security tasks, including infrastructure security inspections and search-and-rescue operations.
As an example, consider the case of a security threat on a bridge or other complex infrastructure installation. In the past, the only way to have a close look at the underside of a bridge was to either set up scaffolding or an equivalent support platform, or have one or more people climb the structure itself. Both of these approaches would allow for the inspection, but both also raise new security and safety concerns. It is even possible that such preparations could provide access to the structure for the very criminals we intended to impede.
With one or more suitably-equipped drones, this same bridge inspection can be conducted quickly, safely and without providing new opportunities for vandalism or worse. In this case, the drones would be outfitted with high-resolution cameras with either excellent low-light performance or an on-board light source. The size of the selected drones would be appropriate for movement in the spaces of the structure with suitable margin for error, and the real-time video link would be zero latency at full resolution to allow the operator to control the drone effectively and safely in the constricted space. Having this zero-latency link is critical for this operation, because any video latency while piloting a drone through narrow pathways increases the chances of damaging, destroying or losing the drone and the camera.
As in the case above, having a real-time zero-latency video link would be critical for this application because of the decreased ability of the operator to see the drone’s position and movement visually. Instead, the operator must depend on the transmitted video stream itself to maintain safe flying conditions, avoiding collisions with trees, overhead wires, and similar obstacles.
In each of these applications, the use of drones offers an additional benefit of speed and operational flexibility compared to the alternatives. Drones can be deployed in minutes – not hours or days – to quickly support operations in the critical early phases. This ability to get into action quickly translates into less operational disruption and cost in the case of infrastructure inspections, and into faster searches for escapees, helping constrain the size of the area to be searched.
There have been great strides forward recently, both in raising the capabilities of small drones and in lowering their costs, but there are still significant barriers to their widespread use.
First and foremost, all airborne systems – including drones – are covered by regulations.
There is also considerable anti-drone public sentiment and concerns about privacy matters, which are unlikely to disappear even when commercial drone operations become more common.
We are still at a very early stage of understanding all the possibilities that drones offer to the security industry, but clearly they will become a valued tool. Let’s continue to work towards a safer and more secure world for all.
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