Bicycle Component Pairing Using Power-On Time Synchronization
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Solution Overview
Problem
Existing electric bicycles require manual user intervention for pairing of electrical components, which is cumbersome and prone to mechanical packaging issues, especially when using multiple removable battery packs.
Innovation Solution
Implement a wireless communication system with sensors (reed switch, Hall-effect sensor, or NFC tag) to automatically pair electronic components by detecting matching components on the bicycle, using power-on times for synchronization and enabling output terminals based on predetermined thresholds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If automatic pairing is implemented using sensors and wireless communication, then pairing time is reduced and user interaction is eliminated, but device complexity increases due to additional components
Solution Approach 1:
The system performs preliminary actions by pre-configuring sensors (reed switches, Hall-effect sensors, or NFC tags) in the battery pack and corresponding matching components on the bicycle frame before actual pairing is needed. When the battery is installed, these pre-positioned sensors automatically detect each other and initiate the pairing process without requiring user intervention, thus reducing pairing time while keeping the added complexity minimal and pre-established.
Solution Approach 2:
The pairing system operates autonomously by having the battery pack's processor automatically detect matching components through sensors, compare power-on times via wireless communication, and complete pairing without user input. The system serves itself by using its own resources (sensors, communication interface, processor) to establish connections, eliminating the need for manual pairing operations and reducing the perceived complexity for the user.
2Adaptability or versatility
If multiple removable battery packs are supported, then adaptability is improved, but pairing complexity increases due to need for component identification and synchronization
Solution Approach 1:
The system uses feedback mechanisms where the battery pack and matching components exchange power-on time information via wireless communication. The processor compares these timestamps to verify proper installation and synchronization. This feedback loop ensures that only properly installed battery packs can pair with the bicycle, enabling support for multiple removable battery packs while maintaining pairing simplicity through automatic verification.
Solution Approach 2:
The system changes parameters by using power-on time timestamps as a dynamic identifier that changes with each battery installation. Instead of requiring complex identification procedures, the system simply compares the power-on time parameter between the battery and matching components to establish pairing. This parameter-based approach enables multiple battery pack support while keeping the pairing process simple and automatic.
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
Facilitates seamless automatic pairing of electrical components without user intervention, reducing setup time and avoiding mechanical packaging issues, allowing multiple battery packs to be used effortlessly.
Implementation Method 1
a reed switch, configured to identify when the remote power source is installed on the bicycle
Implementation Method 2
a Hall-effect sensor, configured to identify when the remote power source is installed on the bicycle
Implementation Method 3
an NFC tag, configured to identify when the remote power source is installed on the bicycle
Data Source
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AI summary
An electronic component for a bicycle includes a communication interface and a processor in communication with the communication interface. The processor is configured to identify a first power on time. The first power on time identifies a time at which the electronic component was powered on by a power source of the bicycle. The processor is configured to listen for one or more messages after the electronic component is powered on and receive, via the communication interface, a message of the one or more messages. The received message is from another electronic component of the bicycle and identifies a second power on time. The second power on time is for the other electronic component. The processor is configured to compare the second power on time to the first power on time and initiate, based on the comparison, pairing of the other electronic component with the electronic component.