NFC Mesh Network for Low-Power Interaction Detection
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Solution Overview
Problem
Existing tracking systems in hospitals and other facilities face challenges in providing real-time resource visibility, infection tracking, and interaction detection between patient and clinician devices, often trading off battery life, communication range, or data rate, which are inadequate for efficient workflow and asset tracking.
Innovation Solution
A low-power interaction detection circuit that triggers a higher-power communication system to analyze near-field communication interactions between objects, using a mesh network of near-field communication devices with both short-range and medium-range wireless communication formats to process interaction data and determine business relationships within a facility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous monitoring using higher-power communication systems is employed, then real-time resource visibility and interaction detection are improved, but battery life deteriorates
Solution Approach 1:
The system employs periodic monitoring at interaction points rather than continuous monitoring throughout the facility. NFC devices trigger interactions when objects come into proximity, creating periodic data collection events that provide real-time visibility only when needed, thereby conserving battery power while maintaining reliability for critical tracking events.
Solution Approach 2:
The patent extracts the high-power communication function from continuous operation and activates it only when triggered by NFC interactions. This separates the always-on low-power NFC detection from the higher-power data transfer and analysis functions, enabling real-time tracking of interactions without sustained high energy consumption.
2Use of energy by moving object
If short-range NFC communication is used for interaction detection, then power consumption is reduced, but communication range deteriorates
Solution Approach 1:
The system merges short-range NFC communication with medium-range Wi-Fi or Bluetooth communication. NFC handles the initial low-power interaction detection when objects are in close proximity, while medium-range systems provide broader coverage and data transfer capabilities, combining the advantages of both communication ranges without sacrificing power efficiency.
3Measurement precision
If multiple communication formats are implemented, then interaction detection accuracy is improved, but device complexity increases
Solution Approach 1:
The system segments the communication functionality into distinct layers: NFC for proximity detection and interaction triggering, and medium-range Wi-Fi/Bluetooth for data transfer and network communication. Each layer handles specific tasks, reducing the complexity burden on individual components while maintaining overall system accuracy through coordinated multi-format operation.
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 efficient tracking and analysis of resource interactions, improving workflow and asset management while maintaining battery life and communication range, supporting real-time data transfer and billing accuracy in healthcare settings.
Implementation Method 1
Near field communication typically operates in the 13.56 MHz frequency range, over a distance of one meter or less and usually a few centimeters
Data Source
AI summary
The present invention provides a method and system to determining a near-field communication interaction in a wireless tracking mesh network. The present invention preferably utilizes near-field communication devices in conjunction with tracking tags to transmit signals for reception by sensors stationed throughout a facility which form a mesh network and forward the signals to an information engine for analysis.