Wheel Telemetry Monitoring System for Bicycle Performance
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Solution Overview
Problem
Current bicycle telemetry systems require large externally mounted sensors and proper alignment, which can add weight and affect the balance of the bike, and they do not efficiently monitor rider performance by providing real-time data on wheel rotation speed, riding surface, and acceleration/deceleration events.
Innovation Solution
A compact wireless electronic device attached to one or both bicycle wheels, equipped with an accelerometer, microcontroller, and transceiver, that measures acceleration along the x-, y-, and z-axes, filters out minor movements, and transmits riding information via a radio modem to a control unit for display or storage, providing data on rotation speed, surface type, and acceleration events.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If large externally mounted sensors are used to monitor wheel acceleration, then measurement precision is improved, but weight of moving object increases and balance of bicycle deteriorates
Solution Approach 1:
The patent combines the accelerometer, microcontroller, memory, and wireless transceiver into a single integrated wireless electronic device that attaches to the bicycle wheel. This consolidation eliminates the need for large external sensor mounts while maintaining measurement precision, as the accelerometer directly measures wheel acceleration through the hub or rim integration.
Solution Approach 2:
The patent replaces traditional mechanical sensor mounting systems with a wireless electronic device that uses electronic acceleration sensing. The accelerometer electronically detects wheel rotation and acceleration without requiring mechanical linkages or external mounting structures, thereby reducing weight and preserving bicycle balance.
2Reliability
If continuous data collection is performed to monitor rider performance, then reliability of performance monitoring is improved, but use of energy increases
Solution Approach 1:
The patent implements periodic sampling of wheel acceleration data at predetermined time intervals rather than continuous monitoring. The microcontroller collects acceleration measurements at specific intervals, processes the data, and transmits it wirelessly, thereby maintaining reliable performance monitoring while significantly reducing power consumption compared to continuous data collection.
Solution Approach 2:
The patent extracts only the essential performance metrics from continuous wheel rotation data. The microcontroller processes raw acceleration measurements to identify key events such as wheel rotations, acceleration patterns, and riding surface changes, transmitting only this extracted meaningful data rather than all raw sensor data, thus reducing energy usage while maintaining monitoring reliability.
3Loss of information
If motion activated logic processor is used to filter minor movements, then loss of information is reduced, but device complexity increases
Solution Approach 1:
The patent applies preliminary filtering criteria through motion-activated logic that distinguishes between significant wheel movements and minor vibrations before data processing. The system pre-establishes thresholds for meaningful acceleration events, automatically filtering out noise from road vibrations or minor disturbances while capturing genuine riding performance data, thus reducing information loss without requiring complex post-processing algorithms.
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 accurate and efficient monitoring of rider performance with minimal impact on bike balance and weight, offering real-time data on wheel rotation speed, surface type, and acceleration/deceleration events, while conserving power by filtering out minor movements.
Implementation Method 1
measuring the acceleration of the wheel with respect to one or more of the x-, y-, or z-axes
Implementation Method 2
The first transceiver antenna may then transmit the set of modulated data to the second transceiver antenna
Data Source
AI summary
A wheel telemetry system providing a set of riding information to a rider, while riding a bicycle, by measuring the acceleration of the wheel(s) of the bicycle with respect to one or more of the x-, y-, or z-axes is disclosed. The system features a wheel-mounted portion and a control unit in wireless communication. The wheel-mounted portion is attached to one or both bicycle wheels and comprises an accelerometer, pressure sensor, and/or temperature sensor as well as a programmable microcontroller. The accelerometer monitors the movement of the wheel(s) in one or more of the x-, y-, and z-planes. Accelerometer data, (and optionally the tire pressure data and/or the temperature data), is transmitted to the control unit for monitoring and/or data logging. Movement of a previously motionless bicycle may also be used to trigger an alarm when the control unit is not detected within a predetermined distance from the bicycle.