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A method for automatic return along the route of unmanned aerial vehicles if the data link is lost

A data link and unmanned aerial vehicle technology, applied in the direction of electrical digital data processing, two-dimensional position/course control, program control design, etc., can solve problems such as data link loss, reduce the possibility and prevent unmanned The effect of losing control of the aircraft and reducing the flight time

Active Publication Date: 2013-12-25
CHINA ACAD OF AEROSPACE AERODYNAMICS
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AI Technical Summary

Problems solved by technology

Technical solution problem of the present invention: in order to overcome existing unmanned aerial vehicle flight control system can not lose in data link

Method used

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  • A method for automatic return along the route of unmanned aerial vehicles if the data link is lost

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Embodiment Construction

[0024] If the saved waypoint number is 20, (20-7) > (21-20) other unchanged. The result will be along the

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Abstract

The invention relates to a method for automatic return along a route of an unmanned aerial vehicle when the data link is lost. Set at least two "emergency home" waypoints and one "entry pass" waypoint in the preset waypoints. The "Enter Pass" waypoint is the starting point of the pass route before landing and glide in the track. The "emergency home" waypoint is set before the "entry pass" waypoint, its geographical location is 2 to 4 kilometers near the "entry pass" waypoint, and the geographical altitude is the same as the "entry pass" waypoint, and the ground The altitude is 500 to 600 meters, and there are no obstacles affecting flight safety. When the UAV data link is lost, automatically record the waypoint number where the accident occurred, or record the waypoint number before the navigation mode was switched to the manual guidance mode, and compare it with the two "emergency home" waypoints to find out Make a shorter return route, and then recover along the return route.

Description

A kind of UAV data link loss automatic route return method Technical field [0001] A kind of unmanned aerial vehicle in the case of data link loss, the control strategy and method of returning to the voyage along the route automatically. Background technique At present, known unmanned aerial vehicle automatic flight scheme is to fly automatically according to the waypoint order of pre-booking, and route Point information includes location information and feature information. The general UAV recovery is by setting the last two waypoints to bring back The waypoints of the received characteristics are completed through the relevant control algorithms in the flight control software. The highest failure rate among UAV systems The equipment is a data link system, and the UAV will continue to follow the preset route by default when the data link is lost. After completing the flight mission of the entire route, return to the field for recovery. If the drone has only flown a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/00G05D1/02
Inventor 王刚李平坤李峰
Owner CHINA ACAD OF AEROSPACE AERODYNAMICS
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