Electronic Lock Proximity RFID Unlocking
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Solution Overview
Problem
Existing electronic lock systems require substantial user interaction, such as inserting a key or entering a code, to operate the lock, which is inconvenient.
Innovation Solution
A mobile device, like a key fob, pre-associated with the electronic lock, allows users to unlock the lock by simply touching it or being in proximity, using a RFID circuit and sensors to wirelessly communicate and control the lock mechanism, reducing the need for manual input.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a key or keypad code is used to operate the lock, then security access control is achieved, but user interaction complexity increases
Solution Approach 1:
The patent replaces mechanical key insertion and manual keypad operation with contactless RFID technology. The mobile device communicates wirelessly with the lock system through electromagnetic fields, eliminating the need for physical key manipulation or button pressing. This substitution of mechanical systems with electromagnetic field-based communication directly reduces user interaction complexity while maintaining security access control.
2Ease of operation
If contactless RFID operation is implemented, then ease of operation improves, but potential for unauthorized access increases
Solution Approach 1:
The system performs preliminary validation by requiring the mobile device to be physically present and activated through contact or proximity with the lock. The RFID circuit in the mobile device must be deliberately engaged with the lock's reader, creating a controlled activation window. This preliminary action ensures that access attempts are intentional and traceable, maintaining security while enabling contactless operation.
3Loss of time
If manual key insertion is required, then system simplicity is maintained, but time consumption increases
Solution Approach 1:
The patent replaces the mechanical key insertion process with wireless RFID communication. The mobile device's RFID circuit communicates with the lock system through electromagnetic fields, eliminating the time required for physical key manipulation, insertion, and removal. This substitution dramatically reduces unlock time while the system complexity is managed through integrated circuitry and automated communication protocols.
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
This solution minimizes user interaction by enabling automatic lock operation through proximity or contact, eliminating the need to manipulate keys or keypads, enhancing convenience and ease of use.
Implementation Method 1
a RFID device configured to wirelessly receive an access code from a RFID circuit in range of the RFID device
Implementation Method 2
The contact sensor could be a capacitive sensor, an inductive sensor or a pressure sensor
Implementation Method 3
The contact sensor could be a capacitive sensor, an inductive sensor or a pressure sensor
Implementation Method 4
The contact sensor could be a capacitive sensor, an inductive sensor or a pressure sensor
Implementation Method 5
the sensor could be a proximity sensor configured to detect the presence of a user within a range of the locking device without any physical contact of the proximity sensor. In some cases, the proximity sensor could be an infrared sensor
Data Source
AI summary
An electronic lock, such as a deadbolt, with a locking device movable between a locked position and an unlocked position. The lock includes a key fob including a RFID circuit indicative of a valid access code for the locking device. A circuit is provided that is configured to control movement of the locking device between the locked position and the unlocked position. The circuit includes a sensor, such as a contract sensor or a proximity sensor, which detects when a user is within range of a RFID device. When this happens, the sensor is configured to generate an electrical signal, which is used to activate the RFID device for a predetermined period of time. If the RFID device reads a valid access code, the device is unlocked.