This is the Skywall 100 developed by British based OpenWorks. It uses compressed gas to fire a rocket and net to ensnare drones, then bring them safely back down to earth via parachute. Obviously, this is great news for anybody looking to open a second-hand drone store, which I am if those clowns on Shark Tank would ever recognize a good business idea when they heard one.
It deploys the net just as it's within catching distance of the target. In fact, it will capture unmanned drones from up to 330 feet away. So how does it make sure the drone lands safely? The net has a parachute that opens. The aiming system uses a laser range finder and an inertial measurement unit and the system handles all the calculations electronically.
There's a video demonstration of the unit after the jump, which makes the product look slightly more reliable than just yelling a drone to land OR ELSE. I guarantee if I was flying a drone nobody with a Skywall 100 is going to catch it. I feel like you stand just as good of a chance of bringing a drone down with a t-shirt cannon.
Keep going for the video.
Thanks to Marc B, who agrees the best way to knock a drone out of the sky is to incapacitate its operator (I'm thinking a karate chop to the back of the neck).