Vehicle Rear View Display Screen Segmentation for System State Clarity
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Solution Overview
Problem
Existing image display devices for vehicles do not clearly indicate their operating and non-operating conditions, leading to driver confusion, especially when traveling at high speeds or with large steering angles, which can result in erroneous detection or non-detection of objects.
Innovation Solution
The image display device divides the displayed image into multiple screens, including a central screen and lateral screens, and adjusts the display based on the vehicle's speed and steering angle, ensuring the central screen is always visible to indicate system operation or non-operation, and uses optical flow or pattern matching to detect objects, preventing erroneous detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the system displays the wide angle image to show obstructions, then the driver can see obstructions, but the driver may misunderstand that the system is operating when it is actually in a non-operating condition
Solution Approach 1:
The display screen is divided into multiple regions: a first display region showing the wide angle image and a second display region showing the normal image. This segmentation allows the system to clearly indicate operational state by controlling which regions are active, preventing driver misunderstanding about system status.
Solution Approach 2:
The patent uses different display states (displaying wide angle image vs. normal image) to visually indicate system operation status. The change in displayed content serves as a clear visual signal to the driver about whether the system is actively detecting and warning of obstructions.
2Speed
If the system operates at high speed, then the vehicle can travel faster, but object detection may become erroneous or fail
Solution Approach 1:
The system dynamically adjusts its operation based on vehicle speed. When speed exceeds a predetermined threshold, the system switches to a second operation mode where it no longer displays wide angle images or provides obstruction warnings, thereby preventing erroneous detection at high speeds while allowing normal high-speed travel.
Solution Approach 2:
The system changes its detection and display parameters based on vehicle speed. At speeds below the threshold, the system actively detects objects and displays warnings. At speeds above the threshold, the system disables these functions, effectively changing operational parameters to match driving conditions and avoid false detections.
3Reliability
If the system provides continuous obstruction warnings, then the driver receives safety information, but the driver may not distinguish between operational and non-operational states
Solution Approach 1:
The display is segmented into distinct regions with different functions. The first display region shows wide angle images when the system is operational and detecting obstructions, while the second display region shows normal images. This clear segmentation helps drivers easily recognize system operational state.
Solution Approach 2:
Instead of providing continuous warnings that may cause confusion, the system inverts the approach by using the presence or absence of specific display content (wide angle image in the first region) to indicate operational state. When the system is not operational, this specific content is absent, providing a clear negative indication.
Data Source
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AI summary
In a driving support display device (1) that includes a rear view wide angle camera (11), and an ECU (20) and a display (30) that display a rearward image captured by the rear view wide angle camera (11), a display control section (25) of the ECU (20) and the display (30) is capable of displaying a moving object approaching detection frame (210) that supports driving of a driver of a host vehicle (100) and a pedestrian detection frame (212) while dividing the rearward image into plural screens for display, and changes the number of the screens to be displayed between when the moving object approaching detection frame (210) is displayed and when the moving object approaching detection frame (210) is not displayed. Thus, the driver can easily recognize operation and non-operation of a system that displays the moving object approaching detection frame (210).