Wireless Electric Strike Retrofit Design
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Solution Overview
Problem
Existing electric strikes are bulky, difficult to install as retrofits, require wired power sources, and lack wireless accessibility and remote computing capabilities.
Innovation Solution
A wireless electric strike with a modular design, including a casing, power source, lock mechanism, and rotor, that allows for bi-stable operation and wireless communication, enabling secure authentication and remote unlocking through a wireless chip and personal area network signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If existing electric strikes are used, then locking function is provided, but the device is bulky and difficult to install as retrofit
Solution Approach 1:
The electric strike is divided into modular components: a housing module containing the strike mechanism, a separate control circuit board, and an integrated power source. This segmentation allows for compact arrangement and easier retrofit installation while maintaining full locking functionality.
Solution Approach 2:
The rotor is nested within the housing, and the control circuitry is integrated into the housing structure. The power source is compactly positioned within the housing, allowing multiple components to occupy overlapping spatial volumes, thereby reducing the overall device footprint.
2Ease of operation
If existing electric strikes are used, then locking function is provided, but wired power sources are required which need electrician installation
Solution Approach 1:
The electric strike incorporates an integrated rechargeable power source and wireless charging capability, allowing the device to power itself without external wiring. The system can be charged wirelessly through a charging coil, eliminating the need for electrician installation of power conduits.
Solution Approach 2:
The wired electrical connection system is replaced with a wireless power transmission system using electromagnetic induction. A charging coil generates a magnetic field that induces current in a receiver coil, transferring power without physical wire connections.
3Adaptability or versatility
If conventional electric strikes are used, then basic locking is achieved, but wireless accessibility and remote computing functions are unavailable
Solution Approach 1:
The electric strike is designed as a multi-functional smart device that combines traditional locking with wireless communication capabilities. The control circuit board includes a processor that can execute various functions: authentication, wireless communication, remote control, and monitoring, making the device adaptable to multiple access control scenarios.
Solution Approach 2:
A wireless communication module serves as an intermediary between the electric strike and remote devices. This module enables bidirectional data transmission, allowing the strike to receive control commands and send status information without direct physical connection, thereby adding wireless accessibility while maintaining manageable system complexity.
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 easy retrofit installation, reduces installation complexity, eliminates the need for wired power, and enables secure, remote-controlled locking and unlocking operations, enhancing flexibility and usability.
Implementation Method 1
a power source; circuitry powered by the power source
Implementation Method 2
a rotor coupled to the lock mechanism, the rotor being powered by the power source and configured to situate the lock mechanism
Data Source
AI summary
Various implementations of an electric strike are described that includes a casing housing that includes a power source, a lock mechanism, circuitry powered by the power source, the circuitry being configured to authenticate a user, and electro-mechanically actuate the lock mechanism, and a rotor coupled to the lock mechanism, the rotor being powered by the power source and configured to situate the lock mechanism based on a lock state of the electric strike.