Camera Prism Mounting for UAV Photogrammetry Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In photogrammetry using UAVs, achieving high accuracy in measuring the position of a camera is challenging due to the difficulty in accurately determining the positional relationship between the camera and a prism, especially when the camera is attached or detached from the UAV, leading to variations in their mutual position accuracy.
Innovation Solution
A camera for photogrammetry is designed with a coupling element, such as a female screw on the lens holder, an adapter for attaching a prism, and the prism is fixedly attached to the adapter, ensuring the prism and camera are integrated with improved mutual position accuracy, with the prism positioned close to the camera's entrance pupil.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the camera is attached or detached from the UAV separately from the prism, then the camera can be easily installed and removed for acquiring photo data, but the mutual position accuracy between the camera and prism deteriorates due to changes in their positional relationship
Solution Approach 1:
The patent combines the camera and prism mounting functions into a single integrated mounting structure. The prism is mounted on the camera body itself rather than separately on the UAV, ensuring that the relative position between camera and prism remains constant during attachment and detachment operations, thus maintaining measurement precision while allowing easy camera replacement.
2Adaptability or versatility
If the prism is mounted on the UAV separately from the camera, then the camera can be easily replaced, but the complexity of the system increases due to the need to calculate and correct the positional relationship between the prism and camera
Solution Approach 1:
The patent merges the prism mounting with the camera mounting structure. The prism is fixed to the camera body at a predetermined position, eliminating the need for separate prism mounting and complex positional relationship calculations. This simplifies the system while maintaining camera replaceability through the standardized mounting interface.
Solution Approach 2:
The patent introduces a standardized mounting interface as an intermediary between the camera and the UAV. This interface includes a coupling element on the camera and a corresponding mounting structure on the UAV, allowing for easy camera replacement while maintaining a fixed relationship between the camera and prism through the integrated mounting design.
3Device complexity
If the prism is positioned far from the camera's entrance pupil, then the mounting structure becomes simpler, but the accuracy of measuring the camera position deteriorates
Solution Approach 1:
The patent applies local quality by positioning the prism at a specific optimal location on the camera body - close to the entrance pupil of the lens. This localized positioning ensures high measurement accuracy for the camera position while the integrated mounting structure keeps the overall design relatively simple.
Data Source
AI summary
A camera for photogrammerty comprises a camera, a coupling element standardly provided on the camera, an adaptor for attaching a prism which is connectable with the coupling element, and a prism fixed to the adaptor for attaching the prism.