Pitch Stabilization Control for Vehicle-Mounted Imaging Equipment
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Solution Overview
Problem
Existing image stabilization methods for photographic equipment on mobile devices, such as smart rearview mirrors, are complex and require multi-degree-of-freedom control, which is costly and difficult to implement effectively.
Innovation Solution
A method and device for stabilizing photographic equipment on a mobile device by simplifying the control equation to a first-order dynamic equation, focusing on single-degree-of-freedom pitch control, using feedback from an external angular displacement sensor and the car's CAN bus to adjust the camera angle based on the vehicle's acceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-degree-of-freedom control is used for image stabilization, then image stabilization performance is improved, but device complexity and control cost increase
Solution Approach 1:
The patent extracts and focuses only on the pitch degree of freedom for stabilization, separating it from other degrees of freedom. By using a single angular displacement sensor and controlling only pitch movement, the system achieves effective stabilization without the complexity of multi-degree-of-freedom control systems.
Solution Approach 2:
The control problem is segmented by focusing exclusively on pitch direction stabilization rather than attempting to control all degrees of freedom simultaneously. This segmentation allows the use of simpler sensors and control algorithms while maintaining effective image stabilization performance.
2Reliability
If multi-degree-of-freedom control is implemented, then image stabilization effectiveness is improved, but implementation difficulty increases
Solution Approach 1:
The patent extracts the essential stabilization function by focusing only on pitch control, removing the need for complex multi-axis control systems. This extraction simplifies implementation while maintaining effectiveness for the primary stabilization requirement.
Solution Approach 2:
The patent uses simpler, more affordable sensors and control mechanisms that are easier to manufacture and implement. By accepting that full multi-degree-of-freedom control is not necessary for effective stabilization, the system可以采用 simpler components that reduce implementation difficulty and cost.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces control costs and achieves effective image stabilization by ensuring stability in the pitch direction, thereby improving the quality of images captured by smart rearview mirrors and other mobile devices.
Implementation Method 1
using feedback from an external angular displacement sensor
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A method (200) and a device (400) for stabilizing photographic equipment on a mobile device. The method (200) includes: acquiring attitude information (201) of the mobile device; determining an expected pitch angle (211) of the photographic equipment; determining a driving force (221) according to the expected pitch angle; and adjusting a pitch angle (231) of the photographic equipment by adoption of the driving force.