Vehicle Hazard Light Strobing Circuit for Emergency Visibility
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Solution Overview
Problem
Existing vehicle hazard light systems are insufficiently visible during emergencies, and they may not be deployed automatically when needed, posing safety risks.
Innovation Solution
A system that integrates a strobing circuit with existing vehicle hazard lights, allowing for automatic deployment and providing perceptibly faster strobing cycles to enhance visibility and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If traditional blinking hazard lights are used, then the system is simple and compatible with existing vehicle wiring, but the visibility and attention-grabbing effect during emergencies is insufficient
Solution Approach 1:
The patent changes the temporal parameter of the lighting system by implementing strobing operation at frequencies between 1-20 Hz, which is significantly faster than traditional blinking. This parameter change transforms the visual effect from simple blinking to intense strobing, dramatically improving visibility and attention-grabbing capability while maintaining compatibility with existing LED and incandescent lighting systems
Solution Approach 2:
The system employs periodic strobing action where the hazard lights are activated in rapid on-off cycles at controlled frequencies. This periodic activation creates a highly visible strobing effect that draws immediate attention during emergencies, while the control module manages the timing and duration of these periodic actions to optimize both visibility and energy consumption
2Reliability
If manual deployment of hazard lights is required, then the system maintains simple control, but the lights may not be deployed automatically when a genuine emergency exists
Solution Approach 1:
The control module is designed to automatically detect emergency conditions and activate the strobing hazard lights without requiring manual intervention. The system monitors vehicle sensors and environmental conditions to self-determine when emergency signaling is necessary, ensuring reliable deployment even when occupants are injured or unable to operate controls
Solution Approach 2:
The system incorporates feedback mechanisms through vehicle sensors that continuously monitor conditions such as collision detection, unusual motion patterns, or other emergency indicators. This feedback loop enables the control module to automatically activate hazard lights when emergency conditions are detected, while still allowing manual override or deactivation by the driver when needed
3Illumination intensity
If strobing frequency is increased to improve visibility, then the attention-grabbing effect is enhanced, but energy consumption increases
Solution Approach 1:
The system uses periodic strobing at optimized frequencies between 1-20 Hz, where each cycle consists of brief illumination periods followed by dark intervals. This periodic operation allows the lights to achieve high peak visibility during the illuminated phases while consuming less total energy compared to continuous operation at the same intensity, as the lights are off during the dark intervals of each cycle
Solution Approach 2:
The control module dynamically adjusts the strobing frequency and duty cycle parameters to optimize the balance between visibility and energy consumption. During critical emergency phases, the system can operate at higher frequencies with longer illumination durations, while during less critical periods or when battery charge is low, it reduces the strobing intensity and frequency to conserve energy
Data Source
AI summary
A system for implementing strobing of existing vehicle hazard lights including an interface to a vehicle wiring harness configured to receive input to an existing vehicle flasher module, and a strobing circuit that responds to an activation signal from the vehicle wiring harness that is indicative of a hazard flasher deployment event by producing an electrical output through the interface to the vehicle wiring harness that causes a strobing of existing vehicle hazard lamps.