Wireless Door Lock Power Transfer with Dynamic Level Control
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Solution Overview
Problem
Conventional door locks with electrical power transfer require costly modifications to conventional doors for wiring, and existing wireless solutions face inefficiencies due to varying distances and alignments between the lock and striking plate, leading to increased energy consumption and premature component wear.
Innovation Solution
A wireless power transfer system using inductive power transmission between a lock and its counterpart, which adjusts power levels based on measured reception to maintain a predefined range, ensuring reliable operation across different door and frame configurations without unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If wireless power transfer is used to avoid wiring modifications, then ease of manufacture and adaptability improve, but energy consumption increases due to over-dimensioning for worst-case scenarios
Solution Approach 1:
The power transfer system dynamically adjusts the power transmission level based on real-time measurement of power received by the lock. The controller monitors the power level and modulates the transmission accordingly, transitioning from static worst-case dimensioning to dynamic adaptation based on actual conditions including distance and alignment variations.
Solution Approach 2:
The system implements a feedback loop where the power received by the lock is measured and this information is used to adjust the power transmission level. The controller receives feedback about the actual power level at the lock and modifies the transmission to maintain optimal power delivery, eliminating the need to over-dimension for worst-case scenarios.
2Reliability
If power is dimensioned for worst-case scenarios to ensure reliable operation, then reliability improves, but energy consumption and component wear increase
Solution Approach 1:
The system transitions from static worst-case power dimensioning to dynamic power adjustment. The controller continuously adapts the power transmission level based on actual operating conditions such as distance and alignment between the striking plate and lock, ensuring reliable operation at the minimum necessary power level rather than consistently operating at maximum capacity.
Solution Approach 2:
The system changes the power transmission parameter dynamically based on measured conditions. By monitoring the power received and adjusting the transmission level, the system optimizes the power parameter to match actual needs, preventing energy waste while maintaining reliable operation across varying distances and alignments.
3Reliability
If conventional wiring through door frame is used, then power transfer reliability improves, but device complexity and manufacturing cost increase due to required door modifications
Solution Approach 1:
The system replaces the mechanical wiring system with a wireless electromagnetic power transfer system. Instead of using physical conductors through the door frame, the invention uses inductive or capacitive coupling between the striking plate and lock to transfer power wirelessly, eliminating the need for mechanical modifications to the door structure.
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
Optimizes current consumption by only sending the necessary power, reducing energy waste and extending component lifespan, while allowing reliable operation across varying distances and alignments.
Implementation Method 1
In one embodiment of the invention, the wireless transfer of power is implemented as inductive power transmission.
Implementation Method 2
In one embodiment of the invention, the wireless transfer of power is implemented as inductive power transmission.
Data Source
AI summary
Lock arrangement and method for transferring electrical power with a lock arrangement that includes a counterpart of the lock and an electrical lock including a lock case. A device for wirelessly sending electrical power to the lock case and/or into connection with the lock case is arranged in connection with the counterpart of the lock, and arranged in the lock case and/or in connection with the lock case are a device for wirelessly receiving electrical power from the device for sending electrical power that is arranged in connection with the counterpart of the lock. The counterpart of the lock wirelessly sends electrical power to the lock case and/or into connection with the lock case with the device that is for sending electrical power, and the lock case wirelessly receives electrical power from the counterpart of the lock with the device that is for receiving electrical power, when the lock and the counterpart of the lock are at a certain distance from each other. The electrical power received from the connection of the lock is measured and the power level of the electrical power sent is increased and/or decreased in such a way that the measured level of the electrical power received is between certain predetermined upper and lower values or essentially at a given preset level.