NFC Door Access Panel for Barrier Control Without Codes
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Solution Overview
Problem
Existing exterior access panels for barrier operators, such as garage door openers, lack convenience for users who have forgotten their personal identification code or do not have their RF transmitter nearby, and there is a need for additional methods to remotely access and control movable barriers.
Innovation Solution
The integration of a near field communications (NFC) module with a radiofrequency (RF) module and a controller in an access control apparatus, allowing authenticated NFC devices to transmit commands to the barrier movement system, enabling secure and convenient remote access to barriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional RF transmitters or personal identification codes are used for access control, then secure barrier operation is achieved, but user convenience deteriorates when users forget codes or leave transmitters at home
Solution Approach 1:
The access control system is enhanced by integrating multiple access methods including NFC technology, allowing users to access the barrier through smartphone NFC tags or cards in addition to traditional RF transmitters and personal identification codes. This multi-functional approach ensures users can access the barrier through multiple channels, improving convenience and reliability when one method is unavailable
2Ease of operation
If exterior access panels with keypads are used, then remote access convenience is improved, but device complexity increases due to additional authentication requirements
Solution Approach 1:
The patent replaces the mechanical keypad entry system with NFC (Near Field Communication) technology, which uses electromagnetic fields for contactless authentication. This substitution eliminates the need for physical keypresses and code memorization, simplifying the user interaction while maintaining security through tap-based authentication
3Adaptability or versatility
If NFC technology is integrated into access control, then user convenience and security are improved, but device complexity increases due to additional modules
Solution Approach 1:
The patent combines the NFC module with the existing RF module and controller in an integrated access control apparatus. The NFC reader and RF transmitter are merged into a single device housing, with the controller coordinating both authentication methods. This integration allows the system to function as both an NFC access control device and an RF gateway, reducing overall system complexity through component consolidation
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 provides secure and convenient remote access to barriers by utilizing NFC technology, allowing authorized devices to command barrier movement systems, enhancing user convenience and security by eliminating the need for physical access codes or RF transmitters.
Implementation Method 1
near field communications are either by way of a modulated electric field, or a modulated magnetic field, but not by a modulated electromagnetic wave
Implementation Method 2
the NFC antenna produces a stationary electric field pulsating at 13.56 MHz
Implementation Method 3
If another similarly small NFC antenna comes into this electric field, it will induce an electric potential into it, alternating at the same frequency
Data Source
AI summary
Disclosed herein is an access control apparatus for a barrier movement system that moves a barrier. The access control apparatus includes a near field communications (NFC) module, a radiofrequency (RF) module, and a controller coupled to the NFC module and RF module. The controller is configured to read an NFC signal from an authenticated external device, via the NFC module. In response to reading the NFC signal, the controller transmits a command signal, via the RF module, that commands the barrier movement system to move the barrier.