Wireless Hand Hygiene Tracking Using Beacon Tags
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Solution Overview
Problem
Existing hand hygiene compliance tracking systems are costly, have limited battery life, and require expensive infrastructure, making them inefficient for widespread use in monitoring hand washing and sanitization practices, especially in healthcare and food-service settings.
Innovation Solution
A wireless hand hygiene compliance tracking system using micro-zone transmitters and beacon tags that transmit and receive data on hand hygiene status, with motion detection and power-saving features, allowing for efficient tracking and minimal disruption to daily activities, and can operate for extended periods on low-cost batteries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing hand hygiene compliance tracking systems are deployed, then hand hygiene monitoring capability is provided, but system cost and infrastructure requirements increase
Solution Approach 1:
The patent uses beacon tags that copy and transmit compliance status data wirelessly, eliminating the need for complex centralized tracking infrastructure. The beacon tags replicate the function of centralized monitoring by independently transmitting their status to mobile devices, thereby reducing infrastructure complexity while maintaining tracking reliability
Solution Approach 2:
The patent introduces mobile devices as intermediaries between the hand hygiene stations and the central system. The mobile devices receive wireless signals from beacon tags and relay compliance information, acting as a mediator that simplifies the overall system architecture by removing direct infrastructure requirements between stations and central servers
2Reliability
If existing hand hygiene tracking systems operate continuously, then monitoring accuracy is maintained, but battery life is limited
Solution Approach 1:
The beacon tags transmit compliance status data periodically or on-demand rather than continuously. The tags wake up to transmit status information when hand hygiene events occur or at scheduled intervals, then return to sleep mode. This periodic transmission maintains monitoring accuracy while dramatically extending battery life compared to continuous operation
Solution Approach 2:
The beacon tags autonomously determine when to transmit data based on detected hand hygiene events or internal timing mechanisms. The tags self-manage their power consumption by activating only when compliance status changes or periodically, without requiring continuous external power or control signals, thereby extending battery operational duration
3Use of energy by moving object
If motion detection and wake-up signals are implemented, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent replaces continuous electronic monitoring with motion-triggered activation. Motion detection sensors detect physical movement or impact on the beacon tag, triggering wake-up signals only when needed. This substitution of continuous electronic operation with event-driven mechanical sensing reduces power consumption while the added sensor complexity is minimal compared to the power savings achieved
Data Source
AI summary
A wireless hand hygiene compliance tracking system and related techniques are disclosed. The system may include one or more micro-zone (mZone) transmitters configured to be deployed at designated locations where hand hygiene compliance is desired. A given mZone transmitter may transmit an mZone signal including data pertaining to its type and identity, from which its purpose and location may be derived. A monitored individual may host a beacon tag configured to receive the mZone signal and pull mZone type and identification data therefrom, relaying that data in its own beacon signal, along with current hand hygiene compliance or non-compliance status data. The beacon tag may be programmed with one or more hand hygiene compliance modes selectable based on the desired monitoring context. The beacon signal may be received by any gateway or reader device within transmission range. In this manner, compliant and non-compliant events may be tracked.