Vehicle Camera Lighting Control for Driver Orientation
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Solution Overview
Problem
Existing systems fail to ensure the driver's face is correctly oriented during pre-photographing for inattentive driving detection, leading to failed feature acquisition and inspection issues.
Innovation Solution
A control device and photographing system that includes a pre-photographing unit and a lighting control unit, where the lighting device is activated to guide the driver's attention and ensure the driver faces the camera, with the camera positioned diagonally in front of the driver's seat to capture a predetermined range including the face, and a millimeter-wave radar for blind spot detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pre-photographing is performed without additional guidance, then the photographing process is simple, but the driver may not face the camera causing feature acquisition to fail
Solution Approach 1:
A lighting device is introduced as an intermediary element to guide the driver's attention toward the camera. The lighting device emits light to attract the driver's gaze, ensuring the driver faces the camera during pre-photographing, thereby improving feature acquisition success rate without significantly increasing system complexity
Solution Approach 2:
The system incorporates a control device that provides visual feedback through the lighting device to guide the driver's behavior. The lighting device acts as a feedback mechanism that signals the driver to adjust their position or orientation to face the camera, ensuring proper alignment for feature acquisition
2Manufacturing precision
If a worker sits in the driver's seat for inspection, then camera orientation can be verified, but the worker may not face the camera causing inspection to fail
Solution Approach 1:
The lighting device serves as an intermediary guide during inspection operations. When a worker sits in the driver's seat for camera orientation verification, the lighting device emits light to clearly indicate the correct facing direction, ensuring the worker faces the camera properly without requiring complex instructions or procedures
3Reliability
If the camera is positioned to capture the driver's face, then inattentive driving detection is enabled, but the driver may be in a blind spot area reducing safety
Solution Approach 1:
The lighting device acts as a safety intermediary by providing visual guidance to the driver. When the driver is in a blind spot area, the lighting device emits light to guide the driver back to a safe position while still allowing the camera to capture the driver's face for inattentive driving detection
Solution Approach 2:
The control device provides real-time feedback to the driver through the lighting device. When the driver enters a blind spot area, the lighting device provides visual feedback to alert the driver and guide them to a safer position, thereby reducing safety risks while maintaining detection reliability
Data Source
AI summary
The present invention includes: a preliminary photography unit 521 that performs preliminary photography which is photography at a stage before the main photography for photographing the driving state of a driver of a vehicle using a photographing device 1 that photographs a prescribed range including the face of the driver; and a lighting control unit 522 that lights a lighting device 2 for emitting light which is attached to the photographing device 1 or around the photographing device 1 when the preliminary photography is performed by the preliminary photography unit 521. A control device 5 may be provided with an output unit 523 that outputs a message instructing the driver to look at the lighting device when the preliminary photography is performed by the preliminary photography unit 521.