NFC Tag Orientation-Based Selective Data Reading
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Solution Overview
Problem
Existing NFC technology consumes excessive device resources when transferring information from multiple NFC tags, as all information is typically transferred upon proximity, limiting the amount of data that can be embedded and lacking efficient selection methods among multiple information units.
Innovation Solution
A method and system that determine the position and orientation of a communication portable device to selectively read a portion of the information from an NFC tag by discretizing the tag's surface into angular sectors, associating each sector with a specific information unit, and reading the unit aligned with the device's axis, using a sensor and controller to manage communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all information from multiple NFC tags is transferred to the portable device when brought within 4 cm proximity, then complete information exchange is achieved, but device resources such as memory are excessively consumed
Solution Approach 1:
The NFC tag information is segmented into multiple information units, each associated with a specific angular sector. The portable device only reads and transfers the information unit corresponding to the sector it is currently oriented toward, rather than reading all information units from the tag. This segmentation allows complete information to be distributed across multiple tags while consuming minimal device resources at any given time.
Solution Approach 2:
Different angular sectors of the NFC tag are assigned different information units, creating local quality variations. The portable device reads only the local information unit corresponding to its current orientation relative to the tag, rather than uniformly reading all information. This enables selective information transfer based on device orientation, reducing overall resource consumption.
2Adaptability or versatility
If multiple NFC tags are arranged in structures like panels or walls to provide more information, then information availability increases, but device resource consumption increases proportionally
Solution Approach 1:
The system segments information across multiple NFC tags arranged in panels or walls, with each tag containing only the information unit relevant to its specific angular sector. When a portable device approaches the structure, it automatically reads only from the relevant tag and sector, rather than reading from all tags. This maintains high information availability while preventing excessive resource consumption.
Solution Approach 2:
The invention extracts only the necessary information unit from the NFC tag structure based on device orientation. Instead of transferring all information from multiple tags, the system extracts and transfers only the specific information unit corresponding to the device's angular position relative to the tag, significantly reducing resource usage while maintaining information accessibility.
3Loss of information
If the entire information included in the NFC tag is transferred to the mobile phone regardless of orientation, then complete information is available, but the system lacks efficient selection capability among multiple information units
Solution Approach 1:
The system dynamically selects which information unit to read from the NFC tag based on the real-time orientation of the portable device. The readable information unit changes dynamically as the device rotates or reorients relative to the tag, providing an efficient selection mechanism without requiring complex user input or processing logic.
Solution Approach 2:
The NFC tag system provides self-service by automatically presenting the appropriate information unit based on device orientation. The system itself performs the selection of which information to transfer, eliminating the need for complex user interface controls or application-level selection logic, thereby simplifying overall system complexity while maintaining efficient information access.
Data Source
AI summary
A method for managing the communication between a communication portable device (200) including a NFC device and a NFC tag (100) including a plurality of information, comprises comprising determining a position and/or orientation of the communication portable device (200) and enabling the communication portable device to read a portion of the plurality of information units, depending on the position and/or orientation of the communication portable device.