Fixed-wing unmanned aerial vehicle autonomous landing control device and method based on microwave guidance

Abstract

The invention discloses a microwave guide based fixed-wing unmanned aerial vehicle autonomous landing control device and method. The microwave guide based fixed-wing unmanned aerial vehicle autonomous landing control device comprises a plurality of ground station nodes and a microwave reception processing unit; every ground station node comprises a microwave sending processing unit and a power supply management module which is used for supplying power for the microwave sending processing unit; the ground station nodes are used for receiving signals sent from an unmanned aerial vehicle and returning ground signals to the unmanned aerial vehicle; the microwave reception processing unit is arranged at the front end of the fixed-wing unmanned aerial vehicle and used for receiving and processing signals and generating corresponding action to adjust the aircraft attitude. The microwave guide based fixed-wing unmanned aerial vehicle autonomous landing control method comprises obtaining the strength of a plurality of communication signals between the current unmanned aerial vehicle and runway nodes; calculating a deviation angle of the current heading of the fixed-wing unmanned aerial vehicle and an approach runway and determining whether the unmanned aerial vehicle is aligned to the runway or not; giving out adjustment data if not. According to the microwave guide based fixed-wing unmanned aerial vehicle autonomous landing control device and method, the unmanned aerial vehicle can be adjusted according to the landing state of the fixed-wing unmanned aerial vehicle to be aligned to the runway and accordingly the success rate of the landing of the unmanned aerial vehicle is maximized.

Description

technical field [0001] The invention relates to the research field of agricultural unmanned aerial vehicles, in particular to a microwave-guided fixed-wing unmanned aerial vehicle autonomous landing control device and method. Background technique [0002] At present, UAV landing and recovery is an important stage in the flight process of UAVs, and it is also the most accident-prone link in the flight process of UAVs. Therefore, the flight control design of the landing and recovery phase is particularly critical. The recovery methods of drones can be summarized into parachute recovery, wheeled slide landing recovery, interception net recovery, air cushion landing recovery and other types. Compared with other recovery methods, the wheeled landing recovery method does not require auxiliary equipment such as interception nets or air cushions, and has higher autonomy. It is the development direction of UAV landing recovery. During the landing, the UAV that adopts the wheel slidi...

AI Technical Summary

Problems solved by technology

[0003] Usually, during the entire wheeled landing process of the UAV, due to the large dependence on the runway, it is difficult to control it manually, resulting in heavy landing damage to the landing gear, or accidents such as aircraft attitude imbalance and wing damage.

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