Adaptive Vehicle Camera Rotation for Blind Spot Detection
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Solution Overview
Problem
Conventional vehicle camera systems fail to accurately detect obstacles during turns due to a fixed front view, obstructing safe driving by interfering with the driver's visual field and lacking adaptive rotation capabilities.
Innovation Solution
A front video camera module with a lens module, image sensor, and holder assembly that rotates based on vehicle sensors' data, including steering angle, yaw rate, and speed, to adjust the camera's view angle and image processing for improved obstacle detection and driver convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the camera device is fixed to capture a fixed front view, then the device structure is simple and stable, but the camera cannot accurately detect obstacles during turning operations
Solution Approach 1:
The patent implements a rotation assembly that enables the lens module to dynamically adjust its viewing angle based on vehicle turning conditions. The rotation assembly includes a rotation shaft and rotation driving mechanism that allow the camera to pivot horizontally, transforming the fixed camera system into a dynamic one that adapts to turning operations, thereby resolving the contradiction between detection accuracy and system complexity
Solution Approach 2:
The system incorporates sensors (steering angle sensor, yaw rate sensor) that provide feedback about vehicle turning state to the control unit. The control unit processes this feedback and automatically adjusts the camera's viewing angle through the rotation assembly, creating a closed-loop control system that improves obstacle detection accuracy during turns without requiring manual intervention
2Adaptability or versatility
If multiple vehicle accessories are mounted in the front interior space, then the vehicle functionality is enhanced, but the driver's visual field is obstructed
Solution Approach 1:
The patent relocates the camera from the traditional dashboard interior space to the windshield area, utilizing the vertical and depth dimensions of the vehicle interior. This dimensional relocation allows the camera to be positioned above the driver's line of sight, enabling multiple accessories to remain on the dashboard without obstructing the driver's view, thus resolving the contradiction between functionality and visual clarity
3Reliability
If the camera rotates to cover blind spots during turns, then obstacle detection is improved, but the device complexity and control difficulty increase
Solution Approach 1:
The control unit receives real-time feedback from steering angle sensors and yaw rate sensors about vehicle turning state. Based on this feedback, the control unit automatically calculates and executes the appropriate rotation angle for the lens module, creating a simple yet effective closed-loop control system that improves safety without requiring complex manual control mechanisms
Solution Approach 2:
The camera system performs self-adjustment through automatic rotation control based on sensor feedback. The control unit autonomously determines when and how much to rotate the lens module without driver intervention, allowing the system to serve itself and eliminate the need for complex manual control interfaces
Data Source
AI summary
A front video camera module for a vehicle includes a lens module having a lens that is configured to image a forward view of the vehicle, an image sensor that is configured to process the image received through the lens, and a lens case to which the lens and the image sensor are coupled. The front video camera module also includes a holder assembly that supports the lens module, the holder assembly being configured to attach to a front windshield of the vehicle via a windshield bracket, and a camera rotation assembly that is configured to rotate the lens module according to a sensed driving condition of the vehicle.