Standalone RFID Reader with Local Microcontroller and Display
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Solution Overview
Problem
Existing RFID reader/writer devices are typically connected to a central controller and lack user feedback, making them unsuitable for fully automated, standalone, and multi-functional applications that require user interaction and configuration.
Innovation Solution
A standalone RFID reader/writer device equipped with a microcontroller, non-volatile data memory, an RFID module, input/output ports, and a display, allowing for configuration and user feedback through a three-color LED or monitor, and capable of operating independently with a DC power source, supporting various functions like transaction logging and external device control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If RFID reader/writer devices are connected to a central controller, then device functionality is controlled and coordinated, but device independence and operational autonomy are reduced
Solution Approach 1:
The system is segmented into independent functional modules: a standalone RFID reader/writer device with embedded microcontroller, non-volatile memory for configuration storage, and local processing capabilities. This segmentation allows each device to operate autonomously while maintaining the ability to communicate with central controllers when needed, resolving the contradiction between independence and complexity.
Solution Approach 2:
The RFID reader/writer device is equipped with self-configuration capabilities through non-volatile memory that stores device parameters and operational settings. The embedded microcontroller enables local decision-making and automated operations without requiring constant central controller intervention, allowing the device to serve itself and operate independently while reducing overall system complexity.
2Ease of operation
If prior art RFID devices provide only LED feedback, then device simplicity is maintained, but user feedback and interaction capability are insufficient
Solution Approach 1:
The feedback system is designed with multi-functionality, incorporating multiple output types (LED indicators, display screens, audible annunciators) that can serve different purposes: visual status indication, detailed information display, and auditory confirmation. This universal feedback mechanism enhances user interaction capability while managing complexity through integrated control from the embedded microcontroller.
Solution Approach 2:
The system implements comprehensive feedback mechanisms that provide real-time information to users about device status, transaction outcomes, and system events. Multiple feedback channels (visual and auditory) work together to deliver rich information, improving ease of operation by keeping users informed about device state and transaction results without requiring complex additional components.
3Adaptability or versatility
If RFID devices lack configuration and data storage capabilities, then device simplicity is maintained, but multi-functional application support is limited
Solution Approach 1:
Device configuration parameters and operational settings are pre-stored in non-volatile memory during manufacturing or initial setup. This preliminary action allows the device to be quickly deployed for different applications by simply changing configuration data in memory, rather than requiring complex hardware reconfiguration. The embedded microcontroller reads and applies these pre-stored settings, enabling multi-functional capability while managing complexity through software-based configuration.
Solution Approach 2:
The system enables multi-functional operation by changing operational parameters stored in non-volatile memory rather than altering hardware architecture. The embedded microcontroller can load different configuration sets from memory to adapt the device for various applications (access control, transaction processing, time attendance). This parameter-based adaptability provides versatility while keeping the physical device structure relatively simple and manageable.
Data Source
AI summary
The device of the present invention is a stand alone radio frequency identification (RFID) reader/writer device comprising a micro controller having non-volatile data memory, an RFID module, at least one input/output port, and a display. The device of the present invention is fully configurable and may serve as a multi-functional transaction sentry, i.e., a ticket taker, a money or point collector, a money or point dispenser, an access controller, a balance inquiry station, a transaction logger, etc. The method of the present invention comprises steps for configuring, operating and collecting data from the RFID reader/writer device of the present invention. The configuration, operation or data collection from the RFID device of the present invention may be performed by using either the RFID module or the at least one input/output port.