Interactive Projection System Using RFID Detection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing projection systems lack interactive and customized control, failing to differentiate between individuals or objects, leading to limited and undesirable projection experiences.
Innovation Solution
An interactive projection system utilizing RFID technology and computer vision to detect and track objects and subjects within a physical environment, allowing for customized and condition-dependent interactions by associating RFID tags with unique identifiers and projection commands, and using computer vision to analyze object positions and orientations to trigger specific digital content displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If light-based sensors are used to trigger projection, then the system can detect triggering events, but it cannot identify who or what specifically triggered the projection
Solution Approach 1:
The patent introduces RFID tags as intermediary elements attached to objects and RFID readers as intermediary devices that mediate between the physical object and the projection system. The RFID tag contains a unique identifier that the reader detects, providing subject identification information that light-based sensors cannot capture. This intermediary mechanism resolves the contradiction by enabling both detection and identification simultaneously.
Solution Approach 2:
The patent replaces light-based detection mechanisms with RFID-based detection mechanisms. RFID technology uses electromagnetic fields rather than optical sensors to detect and identify objects, providing unique identifier recognition capability that light-based sensors lack. This substitution enables the system to identify specific subjects while maintaining detection functionality.
2Adaptability or versatility
If the system associates projection events with a single subject, then identification is simplified, but customization and condition-dependent interactions are limited
Solution Approach 1:
The patent segments the detection and control system into multiple RFID readers positioned throughout the environment, each with its own identification database. Each reader can independently identify objects and trigger appropriate projection events. This segmentation allows the system to handle multiple subjects and complex interactions without requiring a single centralized complex processing unit, thus enabling customization while managing system complexity.
Solution Approach 2:
The patent changes the identification parameter from simple light detection to RFID-based unique identifier detection. Each RFID tag contains a unique ID that can be associated with different subjects and objects. The system uses these identifier parameters to enable customized projection events and condition-dependent interactions, allowing the same object to trigger different projections depending on which subject possesses it.
3Adaptability or versatility
If RFID technology is implemented to identify objects, then subject-based control is enabled, but the system requires additional components and infrastructure
Solution Approach 1:
The patent implements RFID readers that serve multiple functions: detecting object presence, identifying specific objects through unique identifiers, tracking object location, and triggering projection events. This multi-functionality reduces the need for separate specialized components for each function, thereby enabling sophisticated interactive control while limiting the increase in overall system complexity.
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 immersive and interactive projection experiences by accurately identifying and responding to objects and subjects, providing tailored digital content that enhances play and learning environments with dynamic and personalized interactions.
Implementation Method 1
The one or more objects can contain, or otherwise include, radio frequency identification ('RFID') tags that can communicate with various RFID sources (e.g., interrogators or readers) placed throughout the environment. The RFID sources of the environment can interrogate the one or more RFID tags to detect and track locations and positions of the one or more objects.
Data Source
AI summary
A process for triggering projected displays can comprise determining that an RFID device has moved within a predetermined range of a first interrogator, wherein the RFID device is carried by a user. The RFID device can be interrogated to determine a first identifier. Based on the first identifier, an identity of the user can be determined. A projection command can be transmitted to a projection source, wherein the projection command comprises the identity of the user and instructive indicia comprising information about a toy, wherein the toy comprises a second RFID device.