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Small-size unmanned aerial vehicle landing method and system

A technology of small unmanned aerial vehicles and unmanned aerial vehicles, which is applied in control/regulation systems, non-electric variable control, instruments, etc., and can solve problems such as landing platform signs escaping from the field of vision, unrecognizable landing platform signs, instability, etc.

Active Publication Date: 2015-12-30
WUHAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0005] All of the above methods use UAVs to mount cameras to identify landmarks. This method can be used on large UAVs with good stability, but it can be used on small UAVs. Due to its instability, its horizontal displacement will make the The landing pad sign is out of view, making it impossible to recognize the landing pad sign

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  • Small-size unmanned aerial vehicle landing method and system
  • Small-size unmanned aerial vehicle landing method and system
  • Small-size unmanned aerial vehicle landing method and system

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Embodiment Construction

[0048] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] Such as figure 1 Shown, a kind of small unmanned aerial vehicle lands the method, comprises the following steps:

[0050] 1) Guide the UAV into the pre-landing area through the GPS / INS integrated navigation system;

[0051] 2) Establish communication between the UAV and the ground landing platform;

[0052] 3) Drive the drone's airborne vision system to search for the sign of the landing platform, and at the same time turn on the onboard sign light and send instructions to the ground landing platform;

[0053] Among them, the logo of the landing platform is a quadrangular shape in black and white; the logo of the ...

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Abstract

The invention discloses a small-size unmanned aerial vehicle landing method and system. The method comprises the steps that an unmanned aerial vehicle enters a pre-landing area by using a GPS / INS combined navigation system; after the unmanned aerial vehicle enters the pre-landing area, communication with a ground landing platform is established, simultaneously an airborne visual system searches the marker of the landing platform and transmits an instruction to the ground landing platform, and then a ground visual system searches an airborne marker light by using a relative relationship; if a detected target is obscure or the target cannot be detected, an instruction is transmitted to an airborne control module, and the ground visual system detects the marker light again to detect the unmanned aerial vehicle; and finally the accurate positioning and tracking of the unmanned aerial vehicle are completed by using a corresponding algorithm, the unmanned aerial vehicle is controlled to be landed and thereby the accurate and autonomous positioning of the unmanned aerial vehicle is realized.

Description

technical field [0001] The invention relates to the fields of unmanned aerial vehicles and machine vision, in particular to a method and system for landing a small unmanned aerial vehicle. Background technique [0002] Today, Unmanned Aerial Vehicle (UAV) has always been a hot spot in the field of aviation research. It has the advantages of convenient use, low operating cost, flexible and easy to be intelligent, and is widely used in video surveillance, reconnaissance, aerial survey and aerial photography, disaster search and rescue, and line inspection , film and television production, etc. Unmanned helicopters do not need a special runway, can take off and land vertically, and have low space requirements. In recent years, the research and application of small unmanned helicopters have attracted more and more attention. [0003] However, the autonomous recovery and landing of small UAVs in complex environments is not only a technical difficulty, but also the focus of our i...

Claims

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Application Information

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IPC IPC(8): B64F1/18
CPCG05D1/0676
Inventor 肖长诗邹雄元海文文元桥
Owner WUHAN UNIV OF TECH
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