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Damage mitigation for aircraft with deployable parachute

An aircraft and parachute technology, applied in the field of unmanned aerial vehicles, can solve the problems of heavy equipment, excessive time and high cost of fully inflating and expanding the umbrella canopy, etc.

Pending Publication Date: 2022-04-29
PARAZERO TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the time required to fully deploy this prior art device until the canopy is sufficiently inflated and inflated is excessive, which precludes its use for skydiving from relatively low floors of buildings
In addition, prior art equipment is either heavy, complicated to deploy, or expensive, making it unsuitable for large-scale use during catastrophic events

Method used

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  • Damage mitigation for aircraft with deployable parachute
  • Damage mitigation for aircraft with deployable parachute
  • Damage mitigation for aircraft with deployable parachute

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0139] A parachute deployment device weighing 450 gm is carried by a multi-rotor UAV weighing 7 kg, 1.10 m in diameter and 0.5 m in height. The canopy is made of nylon 66 ripstop fabric and has a diameter of 1.75m. Six suspension wires were connected to the aircraft, each suspension wire having a length of 1.6m. Three pull cords, each 25 cm in length, were connected to corresponding projectiles equipped with arrowhead-shaped heads.

[0140] Three angled tubes extend from the manifold. A projectile weighing 23 gm and an arrowhead-shaped head connected to a rod 6 cm in length was inserted into the corresponding tube. A flexible polymer material is applied to the tube, providing a seal after insertion of the corresponding projectile into the tube.

[0141] A single MGG threadably engageable with the manifold was Autoliv A7Zr2.1, IMI-type 610258300, manufactured by Autoliv of Ogden, Utah. MGG has a diameter of 1.5 cm and a length of 4 cm. The pyrotechnic device produces 8 lit...

example 2

[0144] During flight of a hexacopter UAV, a crack develops in one of the rotor blades. The fault detection unit activates flight anomaly mode and forces the UAV to fly to a designated ground station in order to repair the crack.

[0145] Vibration amplitude readings were taken using an accelerometer operable in the 200 Hz range. less than 0.5m / s 2 The amplitude of the vibration reflects normal UAV operation. Greater than 0.5m / s 2 The amplitude of the vibration reflects abnormal flight conditions such as the development of cracks in rotor blades. Greater than 3.0m / s 2 The magnitude of the vibration reflects a critical failure requiring immediate termination of flight and deployment of the parachute.

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Abstract

In one embodiment, a damage mitigation device includes a damage mitigation aircraft having sensors for detecting flight-related characteristics and having a communication unit for commanding activation of a parachute deployment device and a lift generator deactivation unit after determining a flight fault. In one embodiment, an aircraft transmits a critical fault alert signal to a drone traffic management system (UTM) station after detecting a fault, and the UTM station transmits an alert signal to an adjacent aircraft predicted to be near a descent path of the faulty aircraft to avoid a collision with the faulty aircraft. The damage mitigation apparatus facilitates execution of damage mitigation operations.

Description

technical field [0001] The present invention relates to the field of unmanned aerial vehicles (UAVs). More particularly, the present invention relates to UAVs and cooperative systems configured to mitigate damage to bystanders and neighboring UAVs when experiencing a malfunction. Background technique [0002] In recent years, the use of UAVs in low-altitude airspace—eg, below 150m—for various civilian tasks such as delivery of cargo, agricultural monitoring, and rescue operations has increased significantly. Although each UAV is directed to follow a unique flight path to avoid collisions with neighboring UAVs, no measures are made to mitigate the impact on bystanders and neighbors when a UAV experiences an unexpected failure that causes that UAV to suddenly divert from its flight path. Damage to UAVs. [0003] Deployment of the parachute according to the prior art method involves several steps including a triggering action initiated by the operator or user and causing the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D17/62B64C39/02G05D1/00
CPCB64D17/80B64D17/72B64U70/83A62C3/0228B64U2101/16B64U70/30A62C3/0257G08G5/0013G08G5/0021G08G5/0069G08G5/025G08G5/045B64U2201/20
Inventor A·塔利亚R·克劳斯E·A·阿蒂亚斯
Owner PARAZERO TECH LTD