High-speed parachute landing system and method for medium-and-small-sized unmanned aerial vehicles and ejection chute

Abstract

The invention discloses a high-speed parachute landing system and method for medium-and-small-sized unmanned aerial vehicles and an ejection chute. The high-speed parachute landing system and method for medium-and-small-sized unmanned aerial vehicles is characterized by comprising a ground control station control unit, an environment and plane information data acquiring unit, a flight control system, a data processing and executing information generating unit and an ejection sequence starting unit. The method comprises the following steps: setting height parameters and speed parameter of low-altitude and low-speed parachute opening of an unmanned aerial vehicle; flying the unmanned aerial vehicle to the sky above a specific landing region and receiving a ground station command; determiningthe landing region and entering the region according to a specific path; and starting a control system to open a parachute by ejection and landing. The ejection chute comprises a parachute and ejection gas cylinder guns which are mounted at four corners of the parachute. By low-altitude parachute opening, vertical landing time of the unmanned aerial vehicle after the unmanned aerial vehicle enters the landing region is saved by 50%; the whole parachute opening process is automated, a landing preset target point of the unmanned aerial vehicle is positioned accurately; and by parachute openingthrough ejection, the parachute opening speed is increased.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle recovery, in particular to a high-speed parachute system, method, and ejection parachute for the recovery of small and medium-sized unmanned aerial vehicles. Background technique [0002] The parachute recovery method is a routine recovery method for small and medium-sized UAVs. The scope of application of small and medium-sized UAVs is very wide, but the recycling of small and medium-sized UAVs is always a major obstacle to the application of UAVs. [0003] Since small and medium-sized UAVs are often used in forests, mountains, rivers and lakes, alpine regions and offshore areas, take-off and landing recovery must have a variety of take-off and recovery technologies due to landform and condition constraints. [0004] The parachute recovery technology usually uses the parachute carried by the drone to open the parachute in the air, and then slowly descend to the ground. When the ...

AI Technical Summary

Problems solved by technology

[0010] The problem is not only the distance offset, the main difficulty is that the entire landing recovery process is uncontrollable

This is unacceptable for military drones

[0011] To sum up, in the existing technology, there are problems that the unmanned aerial vehicle parachute height cannot be lowered, the parachute opening process takes a long time, and the aircraft deviates from the predetermined target point after landing.

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