UHF RFID Tag Location Tracking for Indoor Safety
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Solution Overview
Problem
Current methods for locating individuals, such as children or pets, in indoor places like shopping malls and amusement parks are inadequate, as they rely on inaccurate security camera reviews and are often too late to prevent the individual from leaving the premises.
Innovation Solution
A system utilizing UHF RFID tags attached to individuals, with RFID readers installed at entrances and exits, allows for accurate and timely location tracking by transmitting and processing location data and generating alarms when a tagged individual is detected, enabling real-time monitoring and alerting caregivers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If security cameras are used to locate individuals indoors, then the system can provide visual monitoring, but the location accuracy is poor and the response time is delayed
Solution Approach 1:
The patent replaces the optical-based security camera system with an electromagnetic field-based RFID system. RFID readers transmit electromagnetic signals to detect tags on individuals, providing precise location data through signal processing rather than visual analysis, thereby achieving both high accuracy and real-time response
Solution Approach 2:
The patent introduces RFID tags as intermediary elements attached to individuals. These tags act as mediators between the RFID readers and the individuals being tracked, enabling continuous location monitoring without requiring direct line-of-sight or manual intervention, thus resolving the accuracy and timing issues of camera-based systems
2Measurement precision
If GPS devices are given to children for location tracking, then the location capability is improved, but the system becomes complex and requires external devices
Solution Approach 1:
The patent extracts the location tracking functionality from complex GPS devices and implements it through simple passive RFID tags. The tags contain minimal components (antenna and chip) that can be easily attached to children, eliminating the need for bulky GPS hardware while maintaining location capability through the RFID reader network
Solution Approach 2:
The patent creates a universal RFID-based location system that can track multiple individuals simultaneously using a network of readers. This multi-functional system serves both location tracking and identification purposes, replacing the need for separate GPS devices on each child with a single centralized system
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 quick and accurate location of individuals within indoor environments, reducing the risk of them leaving the premises undetected by providing real-time tracking and alerting mechanisms, thus enhancing safety and reducing the time taken to locate missing persons.
Implementation Method 1
a communication device configured for transmitting a search command to at least one RFID reader device... receiving the response data from the at least one RFID reader device
Data Source
AI summary
A method and a system for receiving a search request from at least one user device associated with at least one user; generating a search command based on the search request; transmitting the search command to the server to and return data associated with at least one RFID reader device; receiving the response data from the at least one RFID reader device; processing at least one of the response data and the search request; determining a location data associated with at least one individual based on the processing; generating an alarm based on the location data; transmitting at least one of the location data and the alarm to the at least one user device; and storing the search request, the search command, the response data, and the location data.