Vehicle Projection Display for Blind-Area Hazard Notification
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Solution Overview
Problem
Existing vehicle display systems have limitations in imaging and displaying blind areas, particularly on the diagonally rear left and right sides, making it difficult for drivers to recognize pedestrians or objects that are not within the camera's view, and third parties may not notice or accurately understand vehicle behavior from projected patterns.
Innovation Solution
A vehicle display device with a projection system that projects different notification patterns based on object detection, using multiple projectors and cameras to ensure both the driver and third parties can recognize vehicle behavior and the presence of objects outside the camera's view, with patterns changing form or blinking to draw attention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a camera and monitor are used to display blind area images, then the driver can recognize third parties in the blind area, but regions diagonally on the rear left and right sides remain unconfirmed and cannot be checked on the monitor
Solution Approach 1:
The notification pattern is segmented into multiple regions corresponding to different blind areas (rear left, rear right, etc.). Each region can be independently activated to notify third parties in specific zones, allowing comprehensive coverage of areas that would otherwise require multiple complete notification systems.
Solution Approach 2:
The system transitions from a 2D monitor display to a 3D spatial notification by projecting patterns directly onto the road surface. This dimensional change allows the notification to reach third parties directly in their environment rather than requiring them to be within camera view for monitor display.
2Reliability
If a notification pattern is merely projected, then the third party can perceive danger by visually recognizing the pattern, but the third party may not notice the notification pattern, especially children or crouching persons
Solution Approach 1:
The notification pattern is projected in a blinking or flashing manner rather than continuously. This periodic action creates visual attention-grabbing effects that are more likely to be noticed by children, crouching persons, or anyone who might otherwise miss a static notification pattern.
Solution Approach 2:
The notification pattern uses different colors to indicate different levels of urgency or types of danger. This color coding enhances visibility and helps third parties quickly understand the nature and severity of the potential hazard, making the notification more effective for all age groups and situations.
3Reliability
If the notification pattern is projected in different forms when objects are detected, then the driver and third parties can recognize vehicle behavior, but the device complexity increases with multiple projectors and detection systems
Solution Approach 1:
The projection device is designed to perform multiple functions: it can project notification patterns for different blind areas, use different patterns for different vehicle behaviors (turning, reversing, stationary), and adjust notification intensity based on detected objects. This multi-functionality reduces the need for separate specialized devices for each function.
Solution Approach 2:
The system merges the projection device with the object detection device into an integrated unit. The detection device identifies objects in blind areas and automatically triggers appropriate notification patterns from the projection device, eliminating the need for separate control systems and reducing overall device complexity.
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 safety by ensuring both drivers and third parties can reliably recognize vehicle movements and the presence of objects, improving overall travel safety by providing clear visual cues.
Implementation Method 1
a projection device that projects a notification pattern on a region in the vicinity of a vehicle
Data Source
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AI summary
Provided is a display device that enables a third party to reliably recognize a projected notification pattern, enables safe traveling of a vehicle, and enables an occupant of the vehicle to recognize the third party based on the notification pattern, so that further safe traveling of the vehicle is enabled. The display device includes a projection device RP that projects a notification pattern on a region in the vicinity of a vehicle CAR, an imaging device RC that images the region in the vicinity of the vehicle, and an object detection device OS capable of detecting an object (third party) present in a region which cannot be imaged by the imaging device RC. When the object detection device OS detects the object (third party), the projection device RP projects the notification pattern in a form different from the notification in a normal state, so that the third party can visually recognize the notification pattern. The imaging device RC images a region including a region on which the notification pattern is projected, and displays, on a monitor MO visually checkable by the occupant, a captured image of the notification pattern projected in the form different from the notification pattern in the normal state.