Multi-Tier RFID Asset Tracking System
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Solution Overview
Problem
Traditional location tracking systems are ineffective in enclosed spaces, particularly in environments where high costs and manual scanning are required, leading to inaccuracies and inefficiencies in inventory management.
Innovation Solution
A multi-tier location system utilizing low-cost passive RFID tags, a dense array of readers, and a logic tier for data analysis, which allows for real-time tracking and triangulation of asset positions, even in environments with interference, and can be scaled without significant cost increases.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional location technologies (such as bar code scanning) are used for tracking assets, then manual scanning can identify items, but real-time tracking is not achieved and labor intensity is high
Solution Approach 1:
The patent replaces manual mechanical bar code scanning with an automated RFID-based electromagnetic field detection system. Readers automatically detect RFID tags on assets as they pass through tracking zones, eliminating the need for manual scanning operations and enabling continuous real-time tracking without human intervention.
Solution Approach 2:
The RFID tags on assets automatically respond to reader interrogations without requiring manual activation. The system self-records asset locations, movements, and statuses in real-time, eliminating the need for human operators to manually log or track each asset movement.
2Measurement precision
If real-time tracking of all inventory is implemented using traditional methods, then location information can be obtained, but costs increase significantly and precision is insufficient in enclosed spaces
Solution Approach 1:
The tracking system is segmented into three functional tiers: RFID tags attached to individual assets, distributed readers positioned throughout the facility, and a centralized logic tier for data processing. This segmentation allows precise location tracking through triangulation while distributing system complexity across multiple independent components rather than requiring a single complex system.
Solution Approach 2:
The patent introduces RFID tags as intermediary carriers that hold unique identification information for assets. These tags act as mediators between the physical assets and the electronic tracking system, enabling precise identification and location tracking without requiring direct complex interaction between readers and asset details.
3Measurement precision
If a dense array of readers is deployed for accurate triangulation, then location precision improves, but system cost and complexity increase
Solution Approach 1:
The patent implements local quality by positioning readers at specific strategic locations where they can effectively monitor particular zones or pathways. Rather than uniformly distributing readers throughout the entire facility, readers are placed in locations that provide optimal triangulation coverage for high-priority tracking areas, reducing overall system complexity while maintaining precision where needed.
4Productivity
If manual scanning is used for high-value assets only, then costs are controlled, but real-time tracking coverage is limited and labor-intensive
Solution Approach 1:
The RFID tracking system is designed with universality to track any asset regardless of value. The same infrastructure of tags and readers that tracks high-value assets also automatically tracks standard inventory items, providing comprehensive real-time coverage across all asset types without requiring separate manual processes for different value categories.
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, real-time tracking of assets within enclosed spaces, reducing manual overhead and errors, while maintaining cost-effectiveness and flexibility, allowing for reliable location of assets even in challenging conditions.
Implementation Method 1
an array of RFID tag readers placed in known locations within said premises wherein said RFID tag readers activate and obtain tag information from each tag
Implementation Method 2
wherein said control logic reads information from said array of RFID tags; wherein said control logic triangulates the position of each tracked asset
Data Source
AI summary
A system for location of assets on a premises is described. The system uses identifiers attached to a group of one or more assets along with mobile sensor packages. Each mobile sensor package contains components for data processing, data exchange, and storage. The sensor package also contains a sensor for reading identifiers and a location tool. The mobile sensor packages are attached to each mover of assets on the premises.