Iconistic Traffic Light Display with Dynamic Color Background
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Solution Overview
Problem
Existing vehicle vision systems do not effectively enhance driver awareness of traffic light status, relying on static displays that may not clearly convey the current state of traffic lights, potentially leading to confusion or missed signals.
Innovation Solution
A vehicle traffic light alert system utilizing CMOS cameras to capture and process image data, displaying an iconistic representation of traffic lights with adjustable illumination and background colors corresponding to the detected light status, providing an enhanced visual cue to the driver.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a static display is used to show traffic light status, then the display structure is simple, but the driver awareness of traffic light status is insufficient
Solution Approach 1:
The display system changes the background color dynamically based on the detected traffic light status (red background for red light, yellow background for yellow light, green background for green light). This color-coding mechanism enhances driver awareness by providing intuitive visual feedback without requiring complex additional display components, thus resolving the contradiction between improving reliability and maintaining device simplicity.
Solution Approach 2:
The display transitions from a static configuration to a dynamic system that automatically updates the background color and iconistic representation based on real-time traffic light detection. This dynamic adaptation ensures the display always reflects the current traffic light status accurately, improving driver awareness while maintaining relatively simple hardware architecture through software-based dynamic behavior.
2Reliability
If an iconistic representation with color-coded background is used, then driver awareness is enhanced, but the display complexity increases
Solution Approach 1:
The system creates an iconistic representation that copies the essential visual characteristics of the actual traffic light (three lights arranged vertically) and applies color-coding to match the detected status. This simplified copy approach conveys traffic light information effectively without requiring complex graphical rendering, thus enhancing driver awareness while keeping the display structure relatively simple.
Solution Approach 2:
By using color changes in the background and iconistic representation to indicate traffic light status, the system achieves enhanced driver awareness through intuitive visual coding. The color-change mechanism is implemented through software control of the display, avoiding the need for complex hardware modifications and thus resolving the contradiction between improved reliability and display complexity.
3Reliability
If dynamic illumination adjustment is applied, then the traffic light status is clearly indicated, but energy consumption increases
Solution Approach 1:
The display system uses periodic illumination adjustment rather than continuous high-intensity lighting. The iconistic representation and background color are updated periodically based on detected traffic light changes, providing clear status indication only when needed. This periodic action reduces energy consumption compared to continuous dynamic illumination while maintaining reliable traffic light status communication.
Solution Approach 2:
The system achieves clear traffic light status indication through color changes in the background and iconistic representation rather than relying on high-intensity illumination. The color-coding mechanism provides distinct visual feedback for different traffic light states with lower energy requirements, thus resolving the contradiction between reliable status indication and energy consumption.
Data Source
AI summary
A traffic light alert system for a vehicle includes a camera, a processor that processes image data captured by the camera to determine a signal status of a traffic light present ahead of the vehicle, and a global positioning system operable to determine a current geographical location of the vehicle. A display device is operable to display an iconistic traffic light representation. Responsive to determination, via processing of image data captured by the camera, that the traffic light ahead of and being approached by the vehicle has a particular signal status, a control controls the display device so that the displayed iconistic traffic light representation indicates the determined particular signal status. The control adjusts orientation of the displayed iconistic traffic light representation between horizontal orientation and vertical orientation responsive to the current geographic location of the vehicle as determined by the global positioning system of the vehicle.