Modular Electronic Bicycle Lock with Encrypted Drive Module
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Solution Overview
Problem
Existing electronic two-wheeler locks face challenges in being efficiently manufactured, used variably, and secured against unauthorized opening, particularly due to vulnerabilities in communication protocols and mechanical security.
Innovation Solution
A modular electronic two-wheeler lock design featuring a drive module with a hardened module housing and an integrated communication unit that encrypts internal control signals, allowing for secure and flexible communication with external devices while protecting the drive module from external interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the lock uses a hard metal housing for mechanical protection, then security against tampering is improved, but radio-based communication is blocked
Solution Approach 1:
The housing is divided into two distinct parts: a hard metal housing for mechanical protection and a plastic housing for radio communication. This segmentation allows each material to fulfill its specific function without compromising the other, resolving the contradiction between mechanical security and communication capability.
Solution Approach 2:
Different materials are used in different regions of the housing structure. The hard metal housing provides mechanical strength where needed, while the plastic housing provides radio wave transparency in the communication region. This local differentiation of material properties resolves the contradiction by allowing each region to have the quality it needs.
2Adaptability or versatility
If the lock integrates multiple communication protocols, then adaptability to different devices is improved, but device complexity increases
Solution Approach 1:
The communication unit is designed with multi-functionality to support multiple communication protocols (Bluetooth, RFID, Wi-Fi) within a single integrated module. This universal design allows the lock to work with various user devices without requiring separate modules for each protocol, thus improving adaptability while controlling complexity.
3Ease of operation
If the lock provides remote unlocking capability, then user convenience is improved, but vulnerability to unauthorized access increases
Solution Approach 1:
The system implements preliminary security measures including encrypted communication channels and authentication protocols before allowing remote unlocking. This preliminary anti-action prevents unauthorized access while maintaining the convenience of remote operation, as the security measures are already in place before the unlocking action occurs.
Solution Approach 2:
The lock system incorporates feedback mechanisms that verify authentication status and communication security before executing the unlocking command. This feedback loop ensures that only authorized users can remotely unlock the lock, maintaining security while enabling convenient remote operation.
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 modular design enhances security and flexibility by ensuring the drive module is protected mechanically and signal-wise, allowing the lock to be adapted for various communication protocols and user devices, thus improving both operational convenience and security against unauthorized access.
Implementation Method 1
an electric drive unit configured to move the locking mechanism into the unlocked state
Implementation Method 2
an integrated communication unit that encrypts internal control signals
Data Source
AI summary
An electronic bicycle lock may comprise a locking element that is movable between an open position and a closed position, a locking mechanism that locks the locking element against leaving the closed position in a locked state and releases it for leaving the closed position in an unlocked state, an electric drive unit designed to move the locking mechanism into the unlocked state, and a control unit designed to control the drive unit.According to the invention, such a bicycle lock has a modular design and comprises a drive module and a communication unit. The drive module includes a module housing in which at least the locking mechanism, the drive unit, and the control unit are housed to protect them from external mechanical influences, and which separates the drive module from the communication unit and any other modules of the bicycle lock. The control unit is configured to receive control signals from the communication unit in encrypted form and to control the drive unit in response to these signals.