Vehicle Camera Display Reflection for Accurate Side Perception
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Solution Overview
Problem
The challenge of accurately relating an image from a vehicle camera to its actual position and perspective in a vehicle monitoring system, due to placement restrictions, leads to potential misinterpretation of distance and speed, increasing accident risk.
Innovation Solution
A monitoring system with a camera and electronic visual display, utilizing a reflection element to create a virtual image that aligns with the camera's perspective, providing an ergonomic view by increasing the apparent distance and offsetting the image laterally, and optionally using geometric distortion to enhance perception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the camera and electronic visual display are placed independently to satisfy structural and legal restrictions, then placement flexibility is improved, but the driver's ability to correctly relate the image to the vehicle position deteriorates
Solution Approach 1:
The reflection element acts as an intermediary between the camera and the driver's eye. It creates a virtual image that serves as a mediator to bridge the spatial separation between the independently placed camera and display, allowing the driver to correctly perceive the actual position and distance of objects while maintaining placement flexibility.
Solution Approach 2:
The reflection element creates a virtual copy of the camera image that appears at a specific location intersecting the camera's optical axis. This virtual copy preserves the spatial relationships and perspective information, enabling accurate distance and position assessment despite the physical separation between camera and display components.
2Reliability
If the camera is placed outside the vehicle to avoid spray and improve aerodynamics, then reliability and performance are improved, but the intuitive perception of lateral surroundings by the driver deteriorates
Solution Approach 1:
The reflection element serves as an intermediary that creates a virtual image at a location that maintains the intuitive spatial relationship between the driver and lateral surroundings. This allows the camera to be placed optimally outside the vehicle for reliability while preserving ease of operation through the virtual image presentation.
Solution Approach 2:
The reflection element creates a virtual image in a different spatial dimension (virtual space) that intersects the camera's optical axis. This dimensional transformation allows the driver to perceive the lateral surroundings intuitively as if viewing through a conventional mirror, while the camera remains positioned for optimal reliability.
3Measurement precision
If the image is displayed at a location that intersects the camera's optical axis, then perspective accuracy is improved, but the apparent distance from the driver deteriorates
Solution Approach 1:
The reflection element creates a virtual copy of the image that appears at a distance behind the reflection element, greater than the distance from the driver to the reflection element itself. This virtual copying maintains perspective accuracy while providing an appropriate apparent distance for comfortable viewing.
Solution Approach 2:
The reflection element creates a virtual image in extended optical space, effectively adding depth dimension. The image appears at a location that intersects the camera's optical axis (maintaining perspective accuracy) while being perceived at a greater apparent distance through the virtual image formation mechanism.
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
Enhances intuitive understanding of lateral vehicle surroundings, reducing reaction time by allowing direct observation through a window and virtual image perception without eye accommodation, thus improving safety and ergonomic alignment.
Implementation Method 1
the display apparatus comprises an electronic visual display and a reflection element in order to display an image for a person on board the vehicle, with the image appearing at a location that intersects an optical axis of the camera
Data Source
AI summary
A monitoring system for a vehicle includes a camera mounted on the exterior of the vehicle, a display device mounted in an interior space of the vehicle, and a control device that presents an image scanned by the camera on the display device. The display device comprises a screen and a reflective element that presents to a person on-board the vehicle an image that appears at a point which intersects an optical axis of the camera.