Sensor-Based Bicycle Light Modules for Pedal Orientation Sensing
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Solution Overview
Problem
Existing pedal-mounted bicycle lights lack position and motion sensing capabilities, resulting in limited forward illumination and cumbersome operation, making them ineffective for enhancing cyclist visibility and safety at night.
Innovation Solution
The integration of LED-based light modules with position and motion sensing capabilities into bicycle pedals, which automatically adjust light output based on orientation and movement, ensuring optimal visibility and power conservation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual operation is used to control pedal-mounted lights, then the lights can be turned on or off, but the operation becomes cumbersome and requires user intervention
Solution Approach 1:
The light module automatically detects its orientation and motion state without user intervention. The processor determines whether the light is forward or rearward facing and whether the bicycle is in motion, then automatically adjusts light output accordingly, eliminating the need for manual switches or controls
Solution Approach 2:
The system uses sensors to continuously monitor the light module's orientation and motion state, providing feedback to the processor which then adjusts the light output. This closed-loop control enables automatic adaptation to changing conditions without user input
2Illumination intensity
If LED lights are mounted on pedals without position sensing, then the structure is simple, but the lights cannot distinguish forward or rearward facing position and provide limited illumination
Solution Approach 1:
The patent replaces manual mechanical orientation adjustment with electronic sensors and a processor that automatically detect light module orientation. This substitution enables intelligent position recognition without requiring mechanical adjustment mechanisms
Solution Approach 2:
The light module serves multiple functions: it provides forward illumination when facing forward, rearward illumination when facing backward, and automatically adapts to its orientation. This multi-functionality is achieved through integrated position sensing and automatic control
3Reliability
If LED lights operate continuously at maximum output, then visibility is maximized, but battery power is depleted quickly
Solution Approach 1:
The light output dynamically adjusts based on the bicycle's motion state. When motion is detected, the light operates at maximum output for optimal visibility. When motion stops, the light automatically reduces or turns off output, conserving battery power during stationary periods
Solution Approach 2:
The system changes the light output parameter based on motion detection. The processor monitors motion state and adjusts the LED brightness accordingly, transitioning between high-output and low-output or off states to optimize the balance between visibility and power consumption
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 system provides enhanced forward and rearward illumination, conserves battery power, and eliminates the need for manual operation, significantly improving cyclist safety and visibility during nighttime rides.
Implementation Method 1
The automated bicycle lighting system of the present invention comprises light, emitting diode ("LED") based light modules
Data Source
AI summary
An automated bicycle lighting system comprising light modules that contain sensors and a processor which enable the color and/or flash state of the emitted light to be changed depending upon the physical orientation of the modules is provided. The sensors and processor also allow the operating state of the light modules to be adjusted depending upon whether movement of the light modules is sensed. The modules are used in combination with pedals configured to removably receive the modules and/or with an auxiliary mount that provides for mounting the modules to other components of a bicycle, such as, for example, handlebars, seat-posts, frame tubes, helmets and/or a rider's clothing.