RFID Reader Credential Switching for Access Control
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Solution Overview
Problem
Existing access control systems using RFID technology face issues such as database synchronization problems, exposure of employee lists to third parties, and compatibility issues with new technologies that do not adhere to industry standards, leading to delays and confusion in elevator dispatch systems.
Innovation Solution
A system that integrates multiple RFID readers with switching assemblies and credential pickup coils, allowing for the transmission of electromagnetic signals without relying on de facto standards, using link coupling technology to connect readers and credentials, and incorporating a credential selector switch to manage access control efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If database synchronization is implemented to store employee credentials, then access control reliability is improved, but database exposure to third parties and security risks worsen
Solution Approach 1:
The patent extracts employee credential data from the central database and stores it locally in the reader device. This allows the reader to verify credentials without querying the central database, maintaining access control reliability while eliminating database exposure risks to third parties.
Solution Approach 2:
The patent introduces an intermediary approach where the reader device acts as a local verification authority. Instead of direct database access, the system uses locally stored credential data as an intermediary layer, allowing verification without exposing the central database to external threats.
2Ease of operation
If de facto industry standard connections are used for RFID readers, then ease of operation is improved, but compatibility with new technologies and adaptability worsen
Solution Approach 1:
The patent designs the reader device with multi-functionality to support both de facto industry standard connections and new technology protocols. The reader can operate with traditional Wiegand interfaces while also supporting OSDP and other emerging standards, providing ease of operation for legacy systems while maintaining adaptability to new technologies.
Solution Approach 2:
The patent implements dynamic protocol selection in the reader device. The system can adaptively switch between different communication protocols based on the connected credential type, allowing it to maintain ease of operation with established standards while seamlessly integrating new technologies as they emerge.
3Adaptability or versatility
If multiple RFID technologies with different frequencies are supported, then adaptability is improved, but device complexity worsens
Solution Approach 1:
The patent combines multiple RFID frequency support into a single reader device by integrating both 125 kHz and 13.56 MHz credential reading capabilities. This merging approach provides adaptability to support different credential types while managing device complexity through unified hardware design rather than separate readers for each frequency.
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 enhances access control by reducing database exposure, improving compatibility with various RFID technologies, and minimizing delays by allowing seamless integration of different credential frequencies and technologies, while maintaining security and user convenience.
Implementation Method 1
A user credential is presented to a reader, and an indicium is retrieved from the user credential by link coupling between the reader and the credential
Implementation Method 2
A plurality of credential pickup coils may be connected via transmission lines to a common reader pickup coil positioned proximate its respective reader such that electromagnetic signals may be transmitted between the reader pickup coil and its respective reader
Data Source
AI summary
A system and method for reading a credential for an access system is provided. The system may include one or more readers, reader pickup coils, credential read heads, credential switches selectively connecting and disconnecting the reader pickup coil and its respective credential read head, and virtually real credentials. When a user presents a credential to a reader, the user's credential is read, and the appropriate virtually real credential is interrogated, and its indicium is transmitted to the reader. The system then grants the user access or no access depending on the indicium received.