RFID Tag Wireless Powering for AR Object Tracking
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Solution Overview
Problem
Conventional techniques are inadequate for identifying and tracking unpowered objects in augmented reality applications due to distance, occlusion, and similarity issues, particularly those incapable of communicating or being connected via networks.
Innovation Solution
A novel technique employing radio-frequency identification (RFID) technology to enable wireless powering and tracking of unpowered objects using a powered device, which transmits power to the unpowered object via an RFID scan, allowing for better detection and recognition without the need for conventional power components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If visual identification methods are used to track objects, then object tracking can be achieved, but detection accuracy deteriorates due to distance, occlusion, and similarity issues
Solution Approach 1:
The patent introduces RFID tags as an intermediary component attached to objects. Instead of directly visually identifying objects, the system scans RFID tags to obtain identification information. This intermediary approach eliminates the problems of visual identification such as distance limitations, occlusion, and object similarity, thereby improving both tracking reliability and detection precision
Solution Approach 2:
The patent replaces the mechanical/optical visual identification system with an electromagnetic field-based RFID scanning system. The powered device emits electromagnetic signals to activate RFID tags and receives back identification data wirelessly, substituting the line-of-sight requirement of visual systems with a non-line-of-sight electromagnetic communication system, thus resolving detection precision issues
2Device complexity
If unpowered objects are used to reduce complexity and cost, then device complexity and cost decrease, but the ability to communicate and be tracked deteriorates
Solution Approach 1:
The patent implements a self-service mechanism where unpowered objects with RFID tags can be activated temporarily by the powered device's electromagnetic field. The RFID tag harvests energy from the electromagnetic signal to power its communication circuit, enabling it to transmit identification information back to the scanner. This allows unpowered objects to communicate reliably without requiring permanent power components
Solution Approach 2:
The powered device serves multiple functions: it acts as both the scanning device for identification and the power source for activating RFID tags. This multi-functionality allows the system to maintain simple unpowered objects while ensuring reliable communication through the dual role of the powered device
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 effective location tracking and augmented reality experiences for unpowered objects, enhancing detection and recognition by powering and communicating with them wirelessly, thus overcoming previous limitations.
Implementation Method 1
A novel technique employing radio-frequency identification (RFID) technology to enable wireless powering and tracking of unpowered objects using a powered device, which transmits power to the unpowered object via an RFID scan
Data Source
AI summary
A mechanism is described for facilitating powering of unpowered objects for tracking, augmented reality, and other experiences according to one embodiment. A method of embodiments, as described herein, includes scanning, by a scanner of a computing device, an object, where the object includes an unpowered object, and where the scanner is further to detect a smart tag at the object. The method may further include providing power, by the computing device, to the object, where the power is provided via the smart tag at the object, where providing power includes initiating an output from the object to enable performing of location tracking of the object, where the output is received by the computing device. The method may further include rendering an augmented reality (AR) experience involving the object, where the AR experience is based on the output.