Bicycle Headlight Fill-Light Control for Accurate Turn Illumination
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Solution Overview
Problem
Conventional bicycle headlight systems using gyroscopes to determine fill light activation are prone to false activation due to tilting caused by pedaling, rather than turning, leading to inefficient light distribution.
Innovation Solution
A bicycle headlight system with two fill lights activated based on a direction light trigger signal, using a direction light controller or intelligent electronic device, and a control module to project light in the appropriate direction without relying on gyroscope-based tilt detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a gyroscope is used to determine bicycle body tilt for fill light activation, then the fill light can be directed toward the tilted direction, but false activation occurs when the bicycle tilts due to pedaling rather than turning
Solution Approach 1:
The invention segments the fill light activation control into two independent parts: (1) gyroscope-based tilt detection for determining activation timing, and (2) direction light trigger signal for determining activation direction. This segmentation allows the system to use the direction light signal as a verification mechanism to distinguish genuine turning intentions from false tilts caused by pedaling, thereby improving activation accuracy while reducing false activations
Solution Approach 2:
The direction light trigger signal serves as an intermediary verification mechanism between the gyroscope's tilt detection and the fill light activation. Instead of directly activating the fill light based solely on gyroscope data, the system introduces the direction light trigger signal as an intermediate check to confirm whether the detected tilt corresponds to an actual turning intention, thus eliminating false activations
2Adaptability or versatility
If the headlight rotates to follow bicycle tilt, then illumination follows the turning direction, but the mechanism becomes more complex with additional gyroscopic components
Solution Approach 1:
The invention merges the fill light activation control with the existing direction light control system. Instead of creating a separate gyroscope-based rotation mechanism for the headlight, the system combines the fill light activation logic with the direction light trigger signal that already exists in the bicycle's lighting system. This merging approach achieves adaptive illumination following turning direction while avoiding the complexity of additional gyroscopic rotation mechanisms
Solution Approach 2:
The direction light trigger signal performs multiple functions: it controls the direction light and simultaneously serves as the activation trigger for the fill light. This multi-functionality eliminates the need for separate control mechanisms, reducing device complexity while maintaining adaptability of illumination to turning direction
3Illumination intensity
If additional fill light is installed on the lamp, then illumination coverage is improved, but the system requires separate control mechanisms increasing complexity
Solution Approach 1:
The direction light trigger signal is designed to serve dual purposes: controlling the direction light and triggering the fill light activation. This multi-functional design allows the system to provide enhanced illumination coverage through the additional fill light while avoiding the need for separate control mechanisms, as both lighting functions are coordinated through the same trigger signal
Data Source
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AI summary
A bicycle headlight system (20) includes a headlight (21) and two fill lights (22), the headlight (21) maintains light projection when the bicycle headlight system (20) is activated, the two fill lights (22) are controlled respectively, the two fill lights (22) have the headlight (21) as a reference axis (211), the two fill lights (22) project lights toward two sides of the reference axis (211), and each of the two fill lights (22) is activated based on a direction light trigger signal (31).