MiniOSD video overlay display method and circuit applied to small UAV navigation

A small unmanned aerial vehicle, video overlay technology, applied in TV, electrical components, color TV and other directions, can solve the problems of inflexible addition and deletion of local flight parameter modules, consumption of hardware resources, occupation of system memory, etc., to achieve convenient implementation, circuit structure and other problems. Simple, reduced footprint and power consumption

Active Publication Date: 2018-08-24
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 1. Most of the displayed information is fixed, and it is inflexible to add or delete local flight parameter modules
[0006] 2. All the superimposed information will occupy a large amount of system memory and consume hardware resources

Method used

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  • MiniOSD video overlay display method and circuit applied to small UAV navigation
  • MiniOSD video overlay display method and circuit applied to small UAV navigation
  • MiniOSD video overlay display method and circuit applied to small UAV navigation

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Embodiment Construction

[0026] The present invention adopts the flight parameter superposition display design scheme of sub-module layering:

[0027] 1) Divide the flight parameters into N categories, and arrange each category on a certain layer of the OSD to obtain N parameter layers;

[0028] 2) Determine the class where the flight parameters to be displayed are located, shield the parameter layer corresponding to the class that does not contain the flight parameters to be displayed in the above N parameter layers, and use the aliasing method to set the parameters corresponding to the class where the flight parameters to be displayed are located layer is superimposed with the original image layer VIN to generate the final OSD image VOUT.

[0029] Such as image 3 , in the generated superimposed image, these four parameter modules are respectively displayed on the four corners of the video image. When the operator only needs GPS parameters and no other information, the OSD layer 1, OSD layer The 2...

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Abstract

The invention discloses a miniOSD video overlapping displaying method and a circuit for small unmanned aerial vehicle navigation. The method comprises the steps that flying parameters are divided into N types, the types of flying parameters are arrayed on a certain layer of an OSC respectively, an N parameter layers are obtained; and the type of flying parameters to be displayed is determined, the parameter layer corresponding to the type which does not include the flying parameters to be displayed in the N parameters is shielded, an aliasing method is used, the parameter layer corresponding to the type of the flying parameters to be displayed and an original image layer VIN are overlapped, and a final OSD image VOUT is generated. The flying parameters are displayed in a selecting mode, occupying and consuming of hardware resources can be lowered to the maximum degree, and adding and deleting of partial flying parameter modules are flexible.

Description

technical field [0001] The invention relates to the field of video overlay display, in particular to a miniOSD video overlay display method and circuit applied to the navigation of small drones. Background technique [0002] With the advancement of science and technology, UAVs are more and more widely used in the civilian field. In many practical applications, such as urban aerial photography and agricultural plant protection, it is necessary for UAVs to transmit real-time monitoring images to the ground terminal, so that To observe, but at the same time, the operator also needs to monitor various parameters of the aircraft, so that when the aircraft is in poor condition or malfunctions, emergency measures can be quickly taken or switched back to manual control to avoid flight accidents to the greatest extent. However, split-screen display often brings great inconvenience to the control, so it is necessary to superimpose the monitoring image and flight parameters and display...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N5/445
Inventor 谭冠政唐尔谦曹文明谭冠军谭淦
Owner CENT SOUTH UNIV
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