Biaxial Tilting Device for Vehicle Camera Stabilization
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Solution Overview
Problem
Dashboard cameras mounted to vehicles experience shaking due to vibrations and shocks, leading to unclear image recording.
Innovation Solution
A biaxial tilting device with a gimbal frame mechanism, including first and second gimbal frames coupled through gimbal shafts, and a tilting and driving mechanism using magnets and coils to stabilize the camera unit, allowing it to tilt and pivot around multiple axes, thereby reducing shaking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the camera unit is directly mounted to the vehicle, then the mounting structure is simple, but the camera unit is liable to shaking due to vibration and shock
Solution Approach 1:
The mounting structure is segmented into multiple independent components: a holder body, a gimbal mechanism with first and second gimbal frames, and a camera unit. Each component performs a specific function - the holder body provides mounting, the gimbal frames provide rotational degrees of freedom, and the camera unit captures images. This segmentation allows the system to isolate the camera from vehicle vibrations while maintaining structural simplicity through modular design.
Solution Approach 2:
The gimbal mechanism acts as an intermediary between the vehicle mounting structure and the camera unit. It mediates the transmission of vibrations by providing a mechanical interface that allows controlled movement, thereby protecting the camera from direct exposure to vehicle shocks while still maintaining a stable mounting connection.
2Reliability
If a gimbal mechanism is introduced to reduce shaking, then image recording clarity is improved, but the device complexity increases
Solution Approach 1:
The gimbal mechanism employs a nested structure where the first gimbal frame is positioned within the holder body, and the second gimbal frame is positioned within the first gimbal frame. The camera unit is then mounted within the second gimbal frame. This nested arrangement allows multiple degrees of freedom to be achieved in a compact configuration, reducing overall structural complexity while maintaining the vibration isolation function.
Solution Approach 2:
The patent introduces rotational degrees of freedom in multiple dimensions through the gimbal mechanism. The first gimbal frame provides rotation about a first axis, while the second gimbal frame provides rotation about a second axis perpendicular to the first. This multi-dimensional approach allows the camera to compensate for vibrations from different directions simultaneously, improving image stability without requiring an overly complex single-axis solution.
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
Effectively suppresses camera unit shaking, ensuring clear image recording by compensating for vehicle vibrations and shocks through precise tilting and pivoting mechanisms.
Implementation Method 1
one of a magnet and a coil, which serves as the tilting and driving mechanism, be arranged on each of the side surfaces of the tillable target member, and another one of the magnet and the coil be arranged on each of inner surfaces of the frame body
Data Source
AI summary
A biaxial tilting device includes: a frame body; and a tilting and driving mechanism configured to drive a member to be tilted so as to be tilted in the frame body, wherein, in an XYZ orthogonal coordinate system, the frame body includes a first gimbal frame opposed to two of the side surfaces of the member to be tilted, each extending in a Y-Z plane direction, and a second gimbal frame opposed to other two of the side surfaces of the member to be tilted, each extending in an X-Z plane direction, and wherein the first gimbal frame is coupled to an external member, the second gimbal frame is coupled to the member to be tilted in a tillable manner, and the first gimbal frame and the second gimbal frame are coupled to each other in a tiltable manner.