Imaging System Optical Axis Adjustment for Mobile Objects
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Solution Overview
Problem
Imaging systems installed on mobile objects face challenges in capturing high-resolution images with a wide field of view while maintaining image continuity due to the narrow angle of view caused by long focal length lenses and attitude changes during movement.
Innovation Solution
An imaging system with a speed detector, attitude detector, and optical axis changing assembly that adjusts the imaging device's optical axis between two different states to expand the imaging range and ensure continuous capture, using a controller to set the optical axis change amount based on the attitude change and moving speed.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a lens with long focal length is used to capture high-resolution images, then image resolution is improved, but the angle of view becomes narrow and imaging range is limited
Solution Approach 1:
The patent applies the dynamics principle by making the optical axis changeable rather than fixed. The optical axis changing assembly dynamically adjusts the optical axis between a first optical axis (for high-resolution imaging) and a second optical axis (for wider field of view), allowing the system to adapt between resolution and imaging range based on operational needs.
2Device complexity
If the imaging device uses a fixed optical axis, then the structure is simple, but image continuity is broken when vehicle attitude changes
Solution Approach 1:
The system transitions from a fixed optical axis to a dynamic optical axis that can change between first and second optical axes. The optical axis changing assembly responds to vehicle attitude changes by switching the optical axis to maintain continuous imaging, thereby improving image continuity while adding controlled complexity to the optical structure.
Solution Approach 2:
The controller receives feedback from the attitude detector about vehicle attitude changes and uses this information to determine when to switch the optical axis. This feedback mechanism ensures that the optical axis adjustment is triggered by actual attitude changes, maintaining image continuity while avoiding unnecessary structural complexity.
3Area of moving object
If the optical axis is changed to expand imaging range, then imaging coverage is improved, but the system complexity increases
Solution Approach 1:
The optical axis changing assembly provides dynamic adjustability between first and second optical axes, enabling the system to expand imaging range when needed while maintaining a relatively simple structure during normal operation. The dynamic nature allows the same hardware to serve multiple imaging requirements.
Solution Approach 2:
The system changes the optical axis parameter (orientation/direction) to transition between first and second optical axes. This parameter change enables imaging range expansion without requiring fundamental structural redesign, thereby managing complexity through parameter variation rather than structural complexity.
Data Source
AI summary
An imaging system includes an imaging device performing imaging in a first imaging state and a second imaging state of different optical axes, an attitude detector that detects an attitude change amount of the mobile object, an optical axis changing assembly that changes, while the mobile object is moving in a first direction, an optical axis of the imaging device from a state of a first optical axis at a time when the imaging device performs imaging in the first imaging state to a state of a second optical axis inclined in a second direction intersecting the first direction at a time of imaging in the second imaging state, and a controller that sets an optical axis change amount by which the optical axis changing assembly changes the optical axis of the imaging device, based on the attitude change amount.