NFC Reader Matrix for RFID Motion Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing RFID tag systems face challenges in detecting the position of RFID tags with high precision and accurately recognizing intended motions, leading to difficulties in performing desired operations based on the tag's motion, such as in card games.
Innovation Solution
A system comprising an information processing apparatus and a reader/writer pad with multiple NFC-compatible R/Ws arranged in a matrix, capable of detecting the position and motion of an IC card, and displaying operation icons to match card movements with game actions, allowing users to perform desired operations by recognizing and repeating specific motions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If multiple antennas are arranged to spread within a predetermined range for RFID tag communication, then the coverage area is improved, but the position detection precision deteriorates
Solution Approach 1:
The system divides the reader into multiple antenna units arranged in a matrix pattern. Each antenna independently detects RFID tags, and the system segments the detection process by identifying which specific antenna detects the tag. This segmentation enables precise position determination through the relationship between antenna location and detected tag position, resolving the contradiction between coverage area and position detection precision.
2Extent of automation
If motion recognition is performed based on RFID tag position changes, then automated operation control is improved, but the accuracy of recognizing intended motion deteriorates
Solution Approach 1:
The system provides feedback by displaying operation icons that represent recognized motions on the screen. The motion recognition unit detects card motions, determines corresponding operations, and displays icons representing these operations. This feedback mechanism allows users to verify whether their intended motion was correctly recognized, enabling correction if needed and improving the accuracy of motion recognition for automated control.
3Loss of information
If operation icons are displayed to show recognized motions, then user feedback is improved, but the system complexity increases
Solution Approach 1:
The system introduces operation icons as an intermediary element between motion detection and operation execution. These icons visually represent the recognized motions and intended operations, serving as a mediator that provides user feedback without requiring complex additional hardware. The icon display system translates complex motion recognition data into simple, understandable visual representations, reducing the perceived system complexity while improving information feedback to users.
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 precise detection and recognition of RFID tag operations, ensuring that user-intended actions are accurately translated into game actions, enhancing the user experience by clearly associating card movements with corresponding game actions.
Implementation Method 1
a reader of an RFID tag for near-field wireless communication
Data Source
Figure 1
Figure 2
Figure 3
AI summary
[Object] To make it possible to check whether operation of the RFID tag is a desired operation assumed by a user. [Solution] A program according to the present disclosure causes a computer to function as: a means for acquiring information regarding motion of an RFID tag that performs near-field wireless communication; a means for recognizing preliminary operation of the RFID tag on a basis of the information regarding the motion; and a means for performing processing of displaying the recognized preliminary operation of the RFID tag. This configuration makes it possible to check whether operation of the RFID tag is a desired operation assumed by a user.