One of the big problems that drones have today is that, despite the fact that today there are a series of laws in force that greatly restrict their use, usually their owners, especially those who are not commercially dedicated to flying this type of vehicles, usually commit quite a lot of infractions. A clear example is that it is not the first time that an airport has to close its airspace for hours because of a drone. Because of this, since DARPA They have decided to take matters into their own hands and create a kind of network capable of recording all the movement made by any drone within a city.
Personally, I have to confess that I am quite shocked by the collision that agencies such as the FAA are having, at least in the United States, in charge of controlling and regulating conventional air traffic, and DARPA, which has been mobilized to try to guarantee the safety and control of the airspace of these devices because believe that the actions the FAA is taking are not enough. In particular, as they assure from DARPA, they are very concerned about national defense cases since a small drone can go unnoticed, proving to be ideal for carrying out a terrorist attack.
DARPA mobilizes and seeks to create a control and activity registration system for drones that move in the city
The idea of DARPA is basically that of establish a network of surveillance nodes It can detect small drones moving at a reduced speed and flying low. All of this activity log would be processed without the targets being in direct line of sight. To achieve this, they are working with larger drones controlled by the Government itself that would fly fixed at a considerable height for long periods of time creating a kind of layer capable of cover very large areas of land.