Fixed-point parachuting method of fixed-wing unmanned aerial vehicle

Abstract

The invention discloses a fixed-point parachuting method of a fixed-wing unmanned aerial vehicle. The method includes the following steps that A, the unmanned aerial vehicle arrives and waits at the position above an assigned parachuting point; B, the real-time wind direction is obtained, and the parachuting air route is automatically planned; C, whether the flying height of the unmanned aerial vehicle is stable or not and whether the unmanned aerial vehicle is suitable for entering the parachuting air route or not are judged, the step D is executed if yes, and the step A is executed again if not; D, the unmanned aerial vehicle enters the parachuting air route, and the real-time wind speed is obtained; E, a rudder is locked and output to the neutral position, and parachute opening point coordinates are automatically planned; F, whether the unmanned aerial vehicle arrives at the parachute opening point or not is judged, a parachute is opened if yes, and the step D is executed again if not. By means of the method, dependency of the aerial vehicle on a fight controller in the landing process can be reduced, the parachute opening position can be automatically planned in the parachuting process according to the weather condition, and the unmanned aerial vehicle can land around the assigned position; experience and control of an operator are not needed, the method is not influenced by abnormal weather, and the requirement for lands is the minimum.

Description

technical field [0001] The invention relates to a fixed-point parachute technology for unmanned aerial vehicles, in particular to a fixed-wing parachute method for a fixed-wing unmanned aerial vehicle. Background technique [0002] At present, the landing methods of fixed-wing UAVs are mainly as follows: [0003] (1) The pilot controls the fixed-wing aircraft to land normally [0004] (2) The pilot judges the wind direction in the air, relies on his own experience, and manually controls the parachute device through the remote control to achieve the parachute mode [0005] (3) The fixed-wing UAV automatically completes the landing according to the given trajectory. [0006] Among the above three methods, the first method requires the drone operator to have strong control ability and experience, and this method is too harsh on the environment of the landing site. For abnormal weather or a small landing site, it is necessary to manually pull the landing net to assist the dro...

AI Technical Summary

Problems solved by technology

If the operator is inexperienced, the drone may land in an unknown place under the influence of a slight wind

Although under the protection of the parachute, it will not hurt people, but the search work of the drone is quite difficult

[0009] To sum up, the current landing methods of fixed-wing UAVs place too many requirements on the personnel and environment.

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