UAV Camera Synchronization via Trigger Signal Frame Rate Adjustment
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Solution Overview
Problem
Existing aerial camera systems on UAVs face issues with unsynchronized dual-light exposure, leading to smear or tandem phenomena in images, affecting shooting quality.
Innovation Solution
A camera imaging method and system that includes a signal trigger device and a signal receiving device, where the trigger device generates a trigger signal with a preset trigger frame rate greater than the default exposure frame rate of the receiving device, ensuring synchronous exposure between visible light and infrared imaging devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual-light imaging is performed with default exposure frame rates, then the imaging process is simple, but exposure synchronization fails causing smear or tandem phenomena
Solution Approach 1:
The trigger device generates exposure control signals in advance according to its own exposure timing, and the triggered device receives and executes these signals to synchronize its exposure. This preliminary action ensures that both devices expose at the same moments without requiring complex real-time coordination mechanisms.
Solution Approach 2:
The trigger device not only performs imaging but also generates exposure control signals for the triggered device. This multi-functionality allows one device to control another, simplifying the overall system architecture while ensuring exposure synchronization between dual-light imaging devices.
2Manufacturing precision
If exposure synchronization is achieved through complex coordination, then image quality improves, but system complexity increases
Solution Approach 1:
The trigger device acts as an intermediary that mediates the exposure timing between dual-light imaging devices. By generating and sending exposure control signals, it coordinates the timing without requiring direct complex interaction between the imaging devices themselves, thus improving image quality while keeping system complexity manageable.
Solution Approach 2:
The triggered device receives exposure control signals from the trigger device and adjusts its exposure timing accordingly. This feedback mechanism ensures that exposure synchronization is maintained, improving image quality by eliminating smear or tandem phenomena while using a straightforward signal-response approach.
Data Source
AI summary
The present invention discloses a camera imaging method, a camera system and an unmanned aerial vehicle (UAV). The camera imaging method is applied to a camera system of the UAV. The camera system includes a signal trigger device and a signal receiving device. The method includes: acquiring, by the signal trigger device, a shooting instruction; generating, by the signal trigger device, a trigger signal with a preset trigger frame rate according to the shooting instruction; and performing, by the signal receiving device, exposure at the preset trigger frame rate according to the trigger signal; where the preset trigger frame rate is greater than a default exposure frame rate of the signal receiving device. According to the present invention, an exposure frame rate of the signal receiving device is adjusted to the preset trigger frame rate, so that the signal receiving device can perform exposure according to the preset trigger frame rate, and synchronous dual-light exposure is implemented.