Steering Wheel Blind Spot Detection with Luminous Light Strip
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Solution Overview
Problem
Blind spot detection systems in vehicles often fail to effectively alert drivers of approaching objects due to environmental noise or visual obstructions, leading to potential collisions.
Innovation Solution
A blind spot detection device using a luminous light strip on the steering wheel to present the relative position and proximity of objects to the vehicle, with adjustable lamp signals and sound effects to guide the driver, ensuring real-time awareness of surrounding objects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If electronic lamp signals or prompt tones are used to alert the driver, then the driver can be warned of approaching objects, but the driver may ignore the warnings due to environmental noises or visual field obstructions
Solution Approach 1:
The patent transitions from traditional 2D instrument panel displays to a 3D spatial visualization system. The virtual image generation unit creates three-dimensional representations of blind spot objects that are projected onto the rear-view mirror surface, providing depth perception and spatial awareness that flat displays cannot achieve. This dimensional enhancement makes the warning more salient and harder to ignore despite environmental noise.
Solution Approach 2:
The patent introduces a camera as an intermediary device that captures real-world visual information and transforms it into processed images displayed on the rear-view mirror. This intermediary visual channel bypasses the problem of environmental noise by providing a direct visual representation of blind spot objects, making the warning more reliable than auditory prompts that can be masked by noise.
2Loss of information
If a camera is installed to capture images of blind spot areas, then real-time visual information can be provided, but the system complexity and cost increase
Solution Approach 1:
The patent makes the camera serve multiple functions: it captures images for blind spot detection, provides real-time visual information for the virtual image generation, and enables the system to detect both stationary and moving objects. This multi-functionality reduces the need for separate sensing devices and justifies the added complexity by delivering comprehensive blind spot awareness.
Solution Approach 2:
The patent combines the camera-based detection system with the rear-view mirror display system into an integrated unit. The processed images from the camera are overlaid or projected directly onto the rear-view mirror surface, merging the detection function with the existing visual interface. This integration reduces overall system complexity compared to having separate display devices.
3Reliability
If virtual images are generated and displayed on the rear-view mirror, then driver awareness of blind spot objects is enhanced, but the manufacturing precision and alignment requirements increase
Solution Approach 1:
The patent implements a feedback mechanism where the system continuously monitors the alignment between the virtual images and the actual road scene through the rear-view mirror. The processing unit adjusts the positioning and scaling of virtual images in real-time based on feedback from the camera and driver position sensors, ensuring accurate alignment without requiring extremely tight manufacturing tolerances.
Solution Approach 2:
The patent makes the virtual image display dynamic rather than static. The system adjusts the position, size, and orientation of virtual images in real-time based on driver head position, steering angle, and vehicle motion. This dynamic adaptation compensates for manufacturing variations and ensures consistent alignment performance under different operating conditions.
Data Source
AI summary
A device for blind spot detection of a vehicle, a method thereof and a steering wheel device are provided. The device includes a steering wheel, a lighting device, a blind spot detector, and a controller. The steering wheel comprises a configuration area including a fixed point, and the fixed point is represented as a virtual location of the vehicle. The lighting device includes a luminous light strip and a dimming driver. The luminous light strip assembled on the steering wheel surrounds the fixed point. The dimming driver controls lamp signals of the luminous light strip. The controller obtains a detection result of whether at least one object is approaching the vehicle, and controls the lamp signals to present a relative position between the vehicle and the at least one object and a degree of proximity between the vehicle and the at least one object according to the lamp signals.