Rope-Based Indoor Localization Using RFID Tags
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Solution Overview
Problem
Conventional rescue ropes lack accurate localization capabilities in GPS-signal deficient indoor environments, posing risks to rescuers due to structural or environmental changes, and existing infrastructure may be compromised during emergencies.
Innovation Solution
A rope-based localization system using RFID or Bluetooth tags embedded in a heat-resistant rope, with a reader device to create a digital pathway for accurate tracking and navigation, allowing for robust localization and improved rescue operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If GPS signal is used for location identification, then outdoor positioning is accurate, but GPS signal is weak or insufficient indoors
Solution Approach 1:
The patent introduces RFID tags and readers as intermediary components to enable indoor positioning. The RFID tags are attached to building infrastructure elements (walls, floors, ceilings) and communicate with handheld readers to determine location, serving as a mediator between the positioning system and the indoor environment where GPS signals cannot penetrate.
2Measurement precision
If existing indoor positioning infrastructure is used, then location tracking is possible, but the infrastructure may be compromised during emergencies
Solution Approach 1:
The patent enables first responders to carry their own positioning infrastructure in the form of handheld readers with RFID scanning capability. This self-contained approach allows responders to independently determine their location and that of victims without relying on building infrastructure that may be damaged or inaccessible during emergencies.
3Ease of operation
If conventional rescue ropes are used, then basic navigation is provided, but accurate localization capabilities are lacking
Solution Approach 1:
The patent combines conventional rescue rope functionality with RFID positioning technology. The RFID tags are integrated into the rope structure or attached to it, allowing the rope to simultaneously serve its traditional navigation purpose while providing continuous localization data through RFID communication with handheld readers.
4Productivity
If manual tracking methods are used in emergency situations, then rescue operations can proceed, but response time is increased
Solution Approach 1:
The patent implements real-time feedback through continuous RFID scanning and location tracking. The handheld readers continuously scan for RFID tags and provide real-time location updates to the rescue coordination system, enabling dynamic tracking of responders and victims, and allowing dispatchers to immediately identify locations and adjust rescue operations accordingly.
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
The system enables more effective tracking and faster response times for rescuers, enhancing rescue efficiency and safety by providing accurate localization within complex indoor environments.
Implementation Method 1
RFID (radio-frequency identification) based localization
Implementation Method 2
RFID or Bluetooth tags embedded in a heat-resistant rope
Data Source
AI summary
Some embodiments describe a system for rope-based localization. The system includes a rope; a first tag, and a second tag coupled to the rope at an interval from the first tag. A reader includes a reader tag sensor to detect the first tag and record a rope ID or a tag ID. The rope ID includes identifying information for the rope. The tag ID includes identifying information for first tag. An orientation measurement unit records orientation data for the reader. The reader is aligned with the rope. The reader orientation is taken as the rope orientation. The orientation data includes azimuth measurement and attitude measurement of the reader. A navigation device includes a navigation tag sensor to detect the first tag and a navigation processor to receive positioning data of the first tag.