NFC Tag Dual Interface Field Detection Handover
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Solution Overview
Problem
Existing Near Field Communication (NFC) systems face challenges in efficiently managing the interplay between NFC tags, host devices, and reader devices, particularly in terms of required time and complexity, especially when transferring configuration data for Bluetooth or WiFi connections.
Innovation Solution
A near field communication tag with a first interface for wireless communication and a second interface for wired communication, featuring a field detection section and an electronic storage for pin configuration information, allowing for output signals to be generated based on near field presence or absence, enabling efficient data transfer and configuration between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If NFC tag uses only wireless communication interface, then compatibility with ISO14443A systems is maintained, but data transfer speed and security are limited
Solution Approach 1:
The NFC tag is designed with dual communication interfaces: a wireless NFC interface for compatibility with ISO14443A systems and a wired interface for high-speed data transfer. This multi-functionality allows the same NFC tag to operate in both contactless and wired modes, achieving both compatibility and high performance requirements simultaneously.
2Productivity
If NFC tag adds wired communication interface, then data transfer efficiency improves, but device complexity increases
Solution Approach 1:
The NFC tag's communication functionality is segmented into distinct interfaces: a wireless NFC interface for low-speed compatibility operations and a wired interface for high-speed configuration data transfer. This segmentation allows each interface to be optimized for its specific purpose while sharing common processing resources, reducing overall complexity.
Solution Approach 2:
A controller serves as an intermediary component that manages both the wireless NFC interface and the wired communication interface. This mediator coordinates data flow between the two interfaces, handling protocol conversion and data routing, which simplifies the overall system architecture by providing a centralized control point.
3Loss of time
If NFC tag uses wireless communication only, then device simplicity is maintained, but handover process between NFC and Bluetooth/WiFi is time-consuming
Solution Approach 1:
Configuration data for Bluetooth or WiFi connections is pre-transferred to the NFC tag through the high-speed wired interface during manufacturing or initial setup. When handover is needed, this pre-stored configuration data is immediately transmitted via NFC, eliminating the time-consuming process of real-time negotiation and configuration exchange between devices.
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 enables faster and more secure data transfer and configuration, allowing for seamless handover between NFC and other communication technologies like Bluetooth or WiFi, improving the efficiency and simplicity of device interactions.
Implementation Method 1
a field detection section for detecting a near field for the wireless near field communication
Data Source
Figure 1
AI summary
A near field communication tag (101), comprises a first tag interface (107) for wireless near field communication with a first device (105), a second tag interface (113) for wired communication with a second device (103), a field detection section (119) for detecting a near field (109) for the wireless near field communication, a pin (121) connectable to the second device (103), wherein an output signal (127) is determined based on a result of the detecting of a near field (109) and the output signal (127) is provided to the pin (121), and an electronic storage (125) storing pin configuration information specifying the output signal.