Event-Triggered Vehicle Video Recording Under Low-Illuminance Conditions
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Solution Overview
Problem
Vehicle video recording devices struggle to accurately capture and identify important information in low-illuminance environments, such as at night or in low-light conditions, due to image quality deterioration, making it difficult to verify details like license plate numbers and surroundings.
Innovation Solution
A vehicle video recording device that integrates with vehicle lamps to control illuminance levels based on detected events, such as impacts or object motions, using illuminance information and battery charging state to enhance video quality in low-light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If video recording is performed in low-illuminance environments without additional lighting, then energy consumption is reduced, but image quality deteriorates making it difficult to verify important information
Solution Approach 1:
The system performs preliminary assessment of illuminance conditions and prepares lighting activation in advance. The controller evaluates whether additional lighting is needed before recording begins, and pre-activates lamps when low illuminance is detected, ensuring proper lighting is ready before the recording event occurs.
Solution Approach 2:
The patent introduces vehicle lamps as an intermediary element between the low-illuminance environment and the camera recording system. These lamps serve as a mediating light source that improves video illuminance without requiring permanent illumination, allowing the camera to capture clear images only when and where needed.
2Illumination intensity
If vehicle lamps are activated to improve video quality, then image clarity is enhanced, but battery charging state may be depleted
Solution Approach 1:
The system implements feedback control by continuously monitoring both illuminance conditions and battery charging state. The controller receives illuminance information from the camera or illuminance sensor, assesses whether lighting is needed, checks the current battery charging state, and dynamically adjusts lamp activation decisions based on this feedback loop, ensuring energy is not wasted when lighting is unnecessary and battery state is adequate.
Solution Approach 2:
The lighting control system is made dynamic rather than static. The controller adjusts lamp activation and duration based on real-time conditions including illuminance levels, event type, and battery charging state. This dynamic approach allows the system to optimize between video quality and energy conservation on a case-by-case basis rather than following a fixed rule.
3Measurement precision
If continuous monitoring of illuminance and event detection is performed, then video recording accuracy is improved, but device complexity increases
Solution Approach 1:
The patent makes the controller multi-functional by integrating multiple detection and control functions into a single component. The controller performs event detection, illuminance assessment, battery state monitoring, and lamp control functions, eliminating the need for separate dedicated components for each function and thereby reducing overall system complexity while maintaining comprehensive monitoring capabilities.
Data Source
AI summary
An example of the present disclosure relates to A vehicle video recording device, including an event determination unit configured to detect at least one event between an external impact of a vehicle and a motion of an external object, a video recording unit configured to record an event video in response to the event being detected, and a cooperative control determination unit configured to output a lamp control signal based on illuminance information in response to the event video being recorded.