Drones are being used by corporate and foreign spies, terrorists, and even separatists groups around the world. Here are 7 technologies that are allowing police to gain an edge against drone use by the bad guys:
In what is one of the most awesome drone hunting videos around, a Dutch company revealed that it has trained eagles to hunt down enemy drones. While the tactic seems to be effective, bird watchers are worried about drafting already small populations of eagles into drone warfare, a tactic that can be dangerous for the birds.
2. Anti-drone drones
Michigan Technological University is working on "drone falconry," using drones armed with nets to capture other drones in flight and drag them to a secure, remote site.
3. Falcon Shield
Like the drone falconry above, Falcon Shield aims to remove drones from populated areas or battlefields. Sensors cover the defended airspace and alert operators to an incoming drone. The operator gets a video feed showing the drone and can decide between firing on the drone, taking control of it, or alerting authorities.
4. Radiowave rifles
The Batelle DroneDefender works by jamming the GPS and radio signals a drone needs to navigate and to received commands from its operator. The jamming device is mounted on a rifle-like weapon and creates a 30 degree cone of interference at ranges of up to 400 meters.
5. Early alert systems
Photo: US Secret Service
While DroneShield and similar systems do not directly stop a drone, they can detect and track them, allowing people to avoid the drone until law enforcement responds. DroneShield uses microphones to detect a drone's acoustic signature, meaning it to detect even small drones like the one that got past the White House's radar and crashed on the President's lawn.
6. Net guns
Net guns are exactly what they sound like. While they allow police departments and other agencies to engage drones without worrying about signals interference or firing lethal weapons, they're extremely limited in terms of range and lack the ability to engage any drone flying more than a few dozen feet high.
7. Wireless detection systems
Domestic Drone Countermeasures fields a wireless system that scans for RF signals. During the initial setup, it determines what local WiFi networks and other devices operate in the area, then alerts the user in the future to new signals that could be coming from a drone or other mobile transmitter.