UAV Projection Display With Observation Coordinates for Calibration
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Solution Overview
Problem
Unmanned aerial vehicles (UAVs) face challenges in intuitively determining the deviation between actual and target projection points during projectile launch, making calibration of the launching apparatus difficult and inefficient.
Innovation Solution
A display method is implemented in the UAV system that includes displaying an observation coordinate system in the image, obtaining GPS coordinates of an origin and scale points, and calculating deviation information to enhance intuitive understanding and accuracy of the actual projection point relative to the target.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If only the image containing projection points is displayed without coordinate system, then the display content is simple, but the user cannot intuitively understand the deviation between actual and target projection points
Solution Approach 1:
An observation coordinate system is introduced as an intermediary element between the image content and the user. This coordinate system serves as a mediator that translates the spatial relationship between actual and target projection points into an intuitive visual framework, allowing users to directly perceive deviation information without complex calculations or interpretations.
Solution Approach 2:
The solution transforms the two-dimensional image display by overlaying a coordinate system that adds dimensional context. The observation coordinate system introduces reference axes and scale markers that provide additional spatial dimensions, enabling users to comprehend deviation in both position and orientation across multiple dimensions simultaneously.
2Ease of operation
If the user visually observes the deviation between actual projection point and target projection point without coordinate system, then no additional equipment is needed, but the calibration difficulty increases
Solution Approach 1:
The observation coordinate system employs distinct visual markers and color-coded elements to differentiate between the actual projection point, target projection point, and reference axes. This visual differentiation through color and symbolic representation makes it easier for users to identify and measure deviations accurately during calibration operations.
3Measurement precision
If the image displays only projection points without scale reference, then the display is clear and simple, but the user cannot determine the actual deviation distance
Solution Approach 1:
The observation coordinate system is pre-configured with scale markers and reference distances before the calibration process begins. These pre-established reference elements provide an immediate measurement framework that allows users to directly read and interpret deviation distances without performing complex calculations or requiring additional measurement equipment.
Data Source
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AI summary
Embodiments of this application provide a display method, a remote control apparatus, and an unmanned aerial vehicle system. The display method includes: obtaining Global Positioning System (GPS) coordinates of an origin in an observation coordinate system to be displayed in a display screen; obtaining GPS coordinates of a plurality of scale points in at least one physical direction based on the GPS coordinates of the origin; obtaining image coordinates of the plurality of scale points in the display screen based on the GPS coordinates of the plurality of scale points; and displaying the observation coordinate system and a target projection point in the display screen based on the image coordinates of the plurality of scale points and the origin. In this method, an observation coordinate system is displayed in an image, so that intuitiveness of an actual deviation between an actual projection point and a target projection point can be improved, the actual deviation can be calculated subsequently, and difficulty in calibrating a launching apparatus by a subsequent user can be reduced.