Worried about GPS going down? Planck AeroSystems has the answer – not just a GPS-free landing system – but one that can land a drone on a moving target.  Based in San Diego, Planck’s vision-based system uses computer vision, artificial intelligence, and other onboard sensors to land without GPS on a moving platform. This means it has to account for the motion of a vessel or ground vehicle, including roll, pitch, heave, and wind effects. Does it really work? Apparently so, as it is deployed in five US federal agencies, two allied nations and now Strategic Elements Ltd  subsidiary Stealth Technologies has signed an agreement to collaborate to enable drones to autonomously launch and land from its ground-based autonomous vehicle platform (AxV).  The AxV will be modified to provide perimeter security in sectors such as transport, energy, defense, government and utilities providing critical services.  The ability to launch and land from a moving target makes drones feasible in small vessels. In fact, one of Planck’s two issued patents is for using a drone to spot fish. There are countless other applications for this technology. Keep up with Planck’s patents at the Patent Forecast.