Middle-small unmanned aircraft parachute descent recovery control device and control method thereof

A control device and UAV technology, which is applied to ejection/disembarkation devices, parachutes, aircraft parts, etc., can solve the problems of parachute parachute failure, etc., and achieve the effects of reliable operation, simple hardware circuit structure and clear logic.

Inactive Publication Date: 2008-09-03
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If there is no integrated control of the engine and the parachute device, and the engine does not stop when the parachute is thrown, the parachute rope is likely to be entangled and cut by the propeller, so that the parachute cannot be opened and the parachute fails.

Method used

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  • Middle-small unmanned aircraft parachute descent recovery control device and control method thereof
  • Middle-small unmanned aircraft parachute descent recovery control device and control method thereof

Examples

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing, a kind of small and medium unmanned aerial vehicle parachute recovery device and control method thereof of the present invention are described in further detail:

[0022] The parachute recovery device of the present invention is composed of a discrete input three-choice two circuit A1, a discrete input three-choice two circuit B2, a relay drive circuit A3, a relay drive circuit B4, an engine stop control relay A5 and a parachute explosion bolt control relay B6. , whose structure is shown in the figure 1 shown. Discrete input three-choice two circuits A1, B2 and relay drive circuits A3, B4 are implemented with reference to the prior art, and they are welded on the printed circuit board together with relays A5, B6, wherein relay A5 is the engine stop control relay, and relay B6 is the umbrella opening The explosive bolt controls the relay, and the relay A5 has two sets of contacts, one set is a normally closed contact 501, ...

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Abstract

The invention discloses a middle and small unmanned aerial vehicle parachute landing device and a controlling method. The device comprises two discrete input 'choosing two out of three' circuits A and B, relay driving circuits A and B and relays A and B, all of which are connected by printed panel lines and respectively control the power supply of the engine and the explosive bolt; the method thereof determines three logic states of 'before open', safety 'pre-commanding' and 'open' and times 'effective time of safety pre-commanding' and 'parking time of engine'. The conversion of the logic states is determined by current test and control instructions, logic states and two timed values and thus controls the relays A and B. The unmanned aerial vehicle parachute landing device can prevent the parachute opening controlling signal from being disturbed so as to avoid accidental parachute opening; the method thereof carries out integrated control to the engine parking and the parachute opening, reduces the possibilities of the accidental parachute opening caused by the misoperation of an operator and the winding and cutting of a parachute rope by the propeller, thereby ensuring the safety and the reliability of the unmanned aerial vehicle parachute landing.

Description

technical field [0001] The invention belongs to the technical field of automatic control of unmanned aerial vehicles, and specifically refers to a parachute recovery control device and control method for small and medium-sized unmanned aerial vehicles. Background technique [0002] Small and medium-sized UAVs are widely used in military and civilian fields, such as military reconnaissance, oil pipeline inspection, urban planning, atmospheric environment monitoring, etc. [0003] Small and medium-sized UAVs mostly take off by ejection or rocket boosting, and are recovered by parachute. The parachute command is issued by the ground operator through the ground measurement and control station. After receiving the parachute command, the on-board control system controls the parachute opening device, and the parachute opening device performs the parachute opening action. [0004] The parachute opening device is usually composed of a parachute throwing mechanism and a corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D17/54B64D25/14
Inventor 王英勋王宏伦周尹强孙毅沙飞
Owner BEIHANG UNIV
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