Wireless-Powered Electronic Lock Unlocking Without Built-In Batteries
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Solution Overview
Problem
Conventional electronic locks require detachable batteries for operation, leading to issues such as power depletion and potential decryption when batteries run out, and may still be decrypted even when powered, posing challenges in reliable unlocking and locking mechanisms.
Innovation Solution
A method utilizing real-time wireless power supply from a smart mobile device or electronic key to an electronic lock, where the lock remains in an offline state until successful authentication identification is achieved, allowing wireless power transfer only within a communication range, enabling operation and subsequent locking or unlocking commands, with a pre-set period for maintaining power supply.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a detachable battery is used to supply power to the electronic lock, then the lock can operate for authentication identification and motor control, but the battery runs out of power leading to operation failure and potential decryption
Solution Approach 1:
The invention extracts the power source function from the lock body itself and separates it into two components: a reusable electronic key that stores power and a powerless lock body that receives power wirelessly. This extraction eliminates the need for a detachable battery in the lock, solving the problem of battery depletion and associated security risks while maintaining lock operation reliability.
Solution Approach 2:
The invention introduces wireless power transmission as an intermediary mechanism between the electronic key and the lock body. This intermediary enables real-time power transfer without physical contact or battery installation in the lock, ensuring continuous operation reliability without the limitations of battery duration.
2Ease of operation
If the electronic lock is powered continuously, then the lock can perform authentication and motor operations, but the lock remains vulnerable to decryption attacks
Solution Approach 1:
The invention performs preliminary authentication verification through the electronic key before enabling power transmission to the lock. The lock remains in a powerless offline state until authentication succeeds, preventing decryption attacks on an unauthenticated lock while ensuring operational capability is granted only after proper verification.
Solution Approach 2:
The invention makes the lock's power state dynamic rather than static. The lock transitions from a powerless offline state to a powered operational state based on authentication results and real-time needs. This dynamic power management enables operation when needed while minimizing exposure to decryption vulnerabilities when not in use.
3Object-affected harmful factors
If the lock remains in offline state when not in use, then the lock security is improved against decryption, but the lock cannot operate when power is needed
Solution Approach 1:
The electronic key serves as an intermediary that carries power and transmission capability. The lock remains offline and powerless for security, but the electronic key can instantly transmit power wirelessly when needed, bridging the gap between security (offline state) and operational readiness (powered state) without contradiction.
Solution Approach 2:
The electronic key performs preliminary power storage and authentication verification before power transmission. This preliminary action ensures the lock remains secure in offline state while being ready for immediate operation when the authenticated key approaches, eliminating the trade-off between security and readiness.
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
Ensures the lock operates without a built-in power source, eliminating battery-related issues and allowing for secure and reliable unlocking and locking without power shortages, as the electronic key can be repeatedly recharged, ensuring continuous operation.
Implementation Method 1
wirelessly supplying power from the electronic key to the lock when the distance between the electronic key and the lock is in the communication range
Data Source
AI summary
A method for unlocking the lock using real-time wireless power supply includes proceeding with authentication identification of a powerless lock by an electronic key after pairing. Power is wirelessly supplied from the electronic key to the lock when the authentication identification starts or the authentication identification passes. The lock obtains the power wirelessly supplied from the lock to operate. When the authentication identification is identified as being successful, the electronic key outputs an unlocking command to the lock. The lock receiving the unlocking command proceeds with an unlocking operation using the power supplied wirelessly.