Quick parachute opening device based on control of distance measuring device

Abstract

The invention relates to a quick parachute opening device based on control of a distance measuring device, and the quick parachute opening device is especially suitable for speed reduction control before an extinguishing unmanned aerial vehicle breaks a window. According to the technical scheme, the quick parachute opening device comprises a shell body and a canopy inside the shell body, and further comprises a mass block used for pulling the canopy open, a micro high-pressure gas cylinder used for providing sliding power for the mass block, a cylinder opening steering engine used for opening the high-pressure gas cylinder, the distance measuring device used for monitoring the current position of the parachute opening device and a parachute opening processor used for receiving distance measuring information of the distance measuring device and starting the cylinder opening steering engine when the current distance measuring information meets a set requirement. The quick parachute opening device can monitor the position of the device in the vertical direction and the horizontal direction in real time, achieves precise positioning, and is high in parachute opening speed and high in reliability.

Description

technical field [0001] The invention relates to a rapid parachute opening device controlled by a rangefinder, which is especially suitable for the deceleration control before the fire-fighting drone breaks a window. Background technique [0002] The parachute opening device in the prior art, such as the utility model patent with the authorized announcement number CN202609086U, discloses a kind of UAV down-throwing ejection type parachute opening device, which includes a parachute canopy, a canopy cover and a parachute, and the middle part of the parachute canopy is Two ejection elastics are arranged in a cross shape, and the parachute is placed between the ejection elastics and the canopy cover; this kind of parachute opening device has poor positioning and low reliability. [0003] Or it is a mechanical product developed from the 60s to 70s of the former Soviet Union. Its control method is mechanical control. Through the monitoring of time or altitude or atmospheric pressur...

AI Technical Summary

Problems solved by technology

[0002] The parachute opening device in the prior art, such as the utility model patent with the authorized announcement number CN202609086U, discloses a kind of UAV down-throwing ejection type parachute opening device, which includes a parachute canopy, a canopy cover and a parachute, and the middle part of the parachute canopy is There are two ejection elastics in a cross shape, and the parachute is placed between the ejection elastics and the canopy cover; this kind of parachute opening device has poor positioning and low reliability

[0003] Or it is a mechanical product developed from the 60s to 70s of the former Soviet Union. Its control method is mechanical control. Through the monitoring of time or altitude or atmospheric pressure, the power to open the parachute is output at the predetermined altitude and delay time, and the parachute is pulled apart. However, the automatic parachute opener of this kind of control method can only monitor the vertical height of the parachute opener and cannot monitor the position on the horizontal direction, and the parachute opening speed is slow, the error is large, and the reliability is low

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