Adaptive Warning Light for Bicycle Visibility
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Solution Overview
Problem
Current reflectors on bicycles are not visible to drivers when vehicles are moving parallel to each other, making it difficult for drivers to assess safety distances and the actual width of bicycles, especially in low light conditions.
Innovation Solution
A warning light system for vehicles, including bicycles, that features a housing with LEDs, a distance meter, and a controller. The system is designed to be visible without external irradiation, activating the LEDs when another vehicle approaches to enhance visibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If reflectors are mounted on the bicycle, then the bicycle is visible to drivers approaching at right angles, but the reflectors are not visible when a vehicle is moving parallel to the bicycle
Solution Approach 1:
The warning light system dynamically activates LEDs based on detected approaching vehicles. The controller receives signals from the distance meter and selectively activates first lights (for perpendicular approach) or second lights (for parallel approach), making the system adaptive to different driving scenarios rather than static like traditional reflectors
Solution Approach 2:
The warning light system divides lighting functions into separate segments: first lights arranged on a first surface for perpendicular visibility, second lights arranged on a second surface for parallel visibility. This segmentation allows each light group to serve its specific directional purpose, resolving the limitation where single-direction reflectors fail in parallel approach scenarios
2Illumination intensity
If traditional bicycle lighting is used, then front and rear illumination is provided, but the driver cannot correctly assess the actual width of the bicycle in the dark
Solution Approach 1:
The system adds lateral illumination as a new dimension to traditional front-rear lighting. Second lights emit light substantially transversely to the direction of travel, illuminating the bicycle's width from the sides. This provides drivers with visual information about the bicycle's actual width, including attachments and stems, in addition to the forward and rearward illumination
3Illumination intensity
If a warning light system with distance meter and controller is implemented, then visibility to approaching drivers is enhanced, but the device complexity increases
Solution Approach 1:
The controller serves multiple functions: it receives signals from the distance meter, determines the approach direction of vehicles, selectively activates appropriate light groups (first or second lights), and regulates light intensity. This multi-functionality consolidates control logic into a single component, managing system complexity while achieving enhanced adaptive visibility
Solution Approach 2:
The distance meter acts as an intermediary sensor that detects approaching vehicles and provides data to the controller. This intermediary component enables the system to respond to external conditions (approaching vehicles) without requiring direct complex interaction between multiple subsystems, simplifying the overall control architecture
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 warning light system increases the visibility of vehicles to approaching drivers, even in low light conditions, allowing for better assessment of safety distances and vehicle width, thereby enhancing safety.
Implementation Method 1
at least one first light, in particular a plurality of LEDs; The first lights are preferably designed to emit light in the yellow and/or white color spectrum
Implementation Method 2
The rangefinder can preferably be designed as an infrared, ultrasonic, or laser sensor
Implementation Method 3
The rangefinder can preferably be designed as an infrared, ultrasonic, or laser sensor
Implementation Method 4
The rangefinder can preferably be designed as an infrared, ultrasonic, or laser sensor
Data Source
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Figure 5~6
AI summary
Warning light 1 for attachment to a vehicle, in particular to a bicycle, electric bicycle, tricycle, wheelchair, ambulance and disabled vehicle, electric and/or kick scooter, which is visible to drivers of other vehicles even without external irradiation, wherein the warning light 1 comprises the following: a housing 2; at least one first light 17, in particular a plurality of LEDs; a distance meter 15 for determining a distance from other vehicles; and a controller 10 which is communicatively connected to the distance meter in order to control the at least one first light 17 in response to the approach of another vehicle.