Vehicle Information Transmitting Apparatus Adapts Optical Stimulus
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicle information transmission systems using light stimuli are ineffective due to variations in driver perception based on physical conditions and environmental factors, leading to inconsistent information delivery.
Innovation Solution
A vehicle information transmitting apparatus that adjusts the mode of optical stimulus based on driver information, operation inputs, and vehicle behavior, using a light source panel with adjustable brightness and color to create a virtual image on the windshield, ensuring appropriate information transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the same light source is used to transmit information to all drivers, then the information transmission method is simple and consistent, but drivers perceive the information differently due to variations in their physical conditions and environmental factors
Solution Approach 1:
The patent applies dynamics by making the light source characteristics adjustable and changeable. The control unit dynamically modifies the emission wavelength, intensity, and timing of the light source based on real-time driver state detection. This allows the system to adapt to different driver conditions (fatigue, attention level, etc.) while maintaining a relatively simple hardware structure, thus resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The patent changes physical parameters of the light source (emission wavelength, intensity, pulse timing) based on detected driver states. By adjusting these parameters dynamically, the system can optimize information transmission for each driver's perceptual state without requiring completely different hardware configurations, thereby achieving adaptability while controlling system complexity.
2Reliability
If the optical stimulus is adjusted frequently to match driver needs, then information transmission becomes more appropriate, but the system complexity and energy consumption increase
Solution Approach 1:
The patent employs periodic action by using pulsed light emission instead of continuous illumination. The control unit activates the light source in periodic pulses synchronized with driver attention cycles or detection intervals. This approach maintains reliable information transmission during critical moments while significantly reducing overall energy consumption compared to continuous operation.
Solution Approach 2:
The system uses feedback from driver state detection to control light source activation. The detection unit monitors driver conditions and provides feedback to the control unit, which then adjusts light emission accordingly. This feedback mechanism ensures the light source operates only when and where needed, improving transmission reliability while minimizing unnecessary energy consumption.
3Measurement precision
If the brightness of the optical stimulus is increased to improve noticeability, then critical alerts become more noticeable, but driver distraction and discomfort increase
Solution Approach 1:
The patent applies local quality by directing light stimuli to specific locations on the windshield corresponding to the driver's line of sight or attention focus. Rather than uniformly illuminating the entire windshield, the system concentrates optical energy locally where it is most needed for alert noticeability, thereby improving detection precision while minimizing overall driver distraction and discomfort from excessive brightness.
Solution Approach 2:
The patent utilizes color changes (wavelength modulation) to convey different levels of alertness and information priority. By varying the emission wavelength rather than solely relying on intensity increases, the system can achieve high noticeability for critical alerts while maintaining more comfortable brightness levels, thus reducing driver distraction and visual discomfort.
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
The apparatus effectively transmits information to drivers by adapting the optical stimulus to their individual needs and environmental conditions, reducing unnecessary distractions and improving noticeability of critical alerts.
Implementation Method 1
a plurality of light irradiation means for emitting light to a front glass at an incidence angle where light is reflected toward a driver's face by the front glass
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
A vehicle information transmitting apparatus transmits information to a driver by optical stimulus (S3 and S4), and determines whether or not to change a mode of the stimulus on the basis of at least one of information about the driver, an operation input, and a behavior of a vehicle, the information about the driver, the operation input, and the behavior being obtained after the transmission of the information (S7). The vehicle information transmitting apparatus may change the mode of the stimulus when determining that the information is not considered by the driver. Further, the vehicle information transmitting apparatus may change the mode of the stimulus when determining that a cause that the information is not considered resides in the mode of the stimulus.