NFC Door Access Control With Single-Token Remote Unlock
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Solution Overview
Problem
Existing access control systems require multiple tokens for different access points, leading to inconvenience and inefficiency, as users often need separate tokens for different buildings or locations.
Innovation Solution
A system utilizing a near-field communication (NFC) token that communicates with a mobile device to control access points, allowing a centralized server to manage access permissions and provide alternative actions or interface options based on user permissions, enabling a single token to operate multiple access points.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate tokens are used for different access points (apartment building, office building), then each access point can be securely controlled, but the user must carry and manage multiple tokens which reduces convenience
Solution Approach 1:
The patent implements a universal token system where a single NFC token can be used across multiple access points (apartment building, office building, etc.). The token contains a unique ID that is recognized by different switching devices through a centralized server, eliminating the need for separate tokens for each location while maintaining secure access control.
Solution Approach 2:
The patent introduces a centralized server as an intermediary between the NFC token and multiple switching devices. The server receives the unique ID from the token, validates it, and communicates with the appropriate switching device to grant access. This intermediary enables one token to work with many access points without compromising security.
2Reliability
If a centralized system is used to manage access control, then token validity and user permissions can be verified, but the system requires complex infrastructure including servers and communication links
Solution Approach 1:
The NFC token itself performs self-validation by containing a unique ID that is inherently recognizable by the system. The token does not require additional power sources, batteries, or complex processing - it simply transmits its unique identifier when brought near a switching device, and the centralized server handles the validation logic.
3Adaptability or versatility
If alternative access options are provided when valid login data is absent, then user flexibility is improved, but the system must handle additional communication protocols and interfaces
Solution Approach 1:
Instead of requiring users to actively request alternative access methods, the system inverts the approach by automatically detecting when valid login data is absent and presenting alternative options (such as contacting building management or using a different authentication method) through the mobile application interface.
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
Enables seamless access control across multiple locations using a single NFC token, reducing the need for multiple tokens, enhancing convenience and security through centralized management and authentication.
Implementation Method 1
a uniform resource locator (URL) request that includes a unique ID from a near field communication (NFC) token, the NFC token being located proximate to the switching device
Data Source
AI summary
Methods and systems for operating a switching device are described herein. A switching control component on a server may receive a URL request that includes a unique ID from an NFC token proximate to the switching device. The switching control component determines if the URL request includes valid login data, and when valid login data is detected for a user with permission to access the door associated with the NFC token, a message to the switching device with instructions to open the door may be transmitted. When the URL request includes valid login data for a user without permission to unlock the door, a selectable list of users who have previously granted the user access to the door may be transmitted. Finally, when the URL request does not include valid login data, a URL may be sent providing a tap-to-unlock application download message and at least one alternative access option.