Regional denial method and system for low-speed unmanned aerial vehicle

The invention provides an area denial method and system for a low-speed unmanned aerial vehicle, and the method comprises the steps: obtaining the speed and distance of the unmanned aerial vehicle at a current moment in response to the detection of the unmanned aerial vehicle corresponding to a to-be-denial target; the distance is a horizontal connecting line distance from the unmanned aerial vehicle to the protection target; according to the speed and the distance, determining a denial range of a denial area for the unmanned aerial vehicle; judging the relative position of the unmanned aerial vehicle between the current moment and the denial area; if the unmanned aerial vehicle is within the denial range, judging that the unmanned aerial vehicle is located in the denial area; if the unmanned aerial vehicle is out of the rejection range, indicating that the unmanned aerial vehicle is not located in the rejection region, updating the rejection range of the rejection region to obtain a new first rejection regio