Head-Up Display Sensor Layout for Sunlight Overheat Warning
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Solution Overview
Problem
Head-up display systems are susceptible to damage from intense sunlight, leading to potential overheating and damage of the image source due to sunlight convergence by reflective elements, and existing protection methods suffer from high false alarm rates and missed alarms.
Innovation Solution
A head-up display device with a light source, image generating element, and sensor configuration that allows external light to be incident on the sensor without obstructing image light, reducing false alarms and enhancing early warning capabilities to prevent overheating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a head-up display device is installed in a vehicle, then the driver can obtain navigation information without taking eyes off the road, but the device requires precise alignment with the windshield which increases installation complexity
Solution Approach 1:
The head-up display device automatically performs alignment with the windshield using image recognition technology. The device captures images of the windshield, detects its curvature and orientation, and autonomously adjusts its projection parameters without requiring manual calibration or complex installation procedures by technicians.
Solution Approach 2:
The patent replaces manual mechanical alignment procedures with an automated optical and computational system. Instead of physically adjusting the device position and angle through mechanical means, the system uses image capture, computer vision algorithms, and automated parameter adjustment to achieve precise alignment.
2Manufacturing precision
If the head-up display device is precisely aligned with the windshield, then the displayed information is clear and properly positioned, but the alignment process requires specialized knowledge and increases installation difficulty
Solution Approach 1:
The device autonomously performs the alignment function that would otherwise require skilled technicians. By capturing images of the windshield and automatically analyzing its geometric properties, the device eliminates the need for human expertise in optical alignment while achieving high precision.
Solution Approach 2:
The patent introduces an image processing and calculation module as an intermediary between the raw device installation and the final aligned state. This intermediary system processes windshield images, calculates optimal projection parameters, and guides the alignment process, making the overall system easier to install while maintaining high precision.
3Adaptability or versatility
If the head-up display device supports multiple windshield types, then the device becomes more versatile, but the alignment and calibration process becomes more complex
Solution Approach 1:
The device automatically adapts to different windshield types by detecting their specific geometric parameters through image analysis. Based on the detected curvature, orientation, and shape characteristics, the system dynamically adjusts projection parameters such as focal length, projection angle, and distortion correction factors, enabling universal compatibility without manual reconfiguration.
Solution Approach 2:
The alignment system is designed to be dynamic rather than static. Instead of requiring fixed calibration settings for each windshield type, the system continuously adapts its parameters based on real-time image analysis of the specific windshield being used, making the device versatile across different configurations.
Data Source
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AI summary
A head-up display device (100) comprises a light source part, an image generation element (120), and at least one sensor (141). The light source part comprises at least one light source (111), the at least one light source (111) being configured to emit light. The image generation element (120) is configured to convert light emitted by the at least one light source (111) to image light (IML) and output same. At least one sensor (141) is located on one side of the image generation element (120) that is close to the light source part. The sensor (141) of the head-up display device (100) has the potential to affect the image light. Also provided are a head-up display system comprising the head-up display device, and a transport device comprising the head-up display device or the head-up display system.