Wearable Communication Units for Firefighter Team Monitoring

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Solution Overview

Problem

Emergency response situations, such as firefighting, pose challenges in monitoring the proximity and safety of firefighters within teams and detecting health risks or disconnection from their teams due to smoke, debris, and complex environments, which can lead to delayed responses and increased risks for both isolated firefighters and other personnel.

Innovation Solution

A wearable communication system with both short-range and long-range radios, integrated into personal protective equipment like SCBAs, that periodically transmits unique identification signals and health data, allowing an incident command monitoring system to track team members' proximity and alert commanders to disconnected or at-risk firefighters, thereby facilitating timely resource allocation and search operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If firefighters remain in close proximity to team members to prevent isolation, then firefighter safety is improved, but the complexity of monitoring team integrity and detecting disconnection increases

Engineering Contradiction:
Improvefirefighter safetyVSAvoidmonitoring system complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces wearable communication units with radios as intermediary devices that automatically monitor and report firefighter team integrity. These units serve as mediators between firefighters and the incident commander, continuously exchanging signals to detect disconnection without requiring manual reporting or complex human monitoring procedures

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The communication units perform self-service by automatically transmitting identification signals and health data, and by autonomously detecting when a firefighter becomes disconnected from the team. The system monitors itself and generates alerts without requiring firefighter intervention or complex external monitoring infrastructure

Inventive Principle:
Principle #25Self-service

2Loss of time

If the incident commander manually monitors firefighter status and location, then response to isolated firefighters can be timely, but the time and resources required for monitoring increase

Engineering Contradiction:
Improveresponse time to isolated firefighterVSAvoidincident commander efficiency
Core Design Contradiction:
Loss of timeVSProductivity

Solution Approach 1:

The system implements continuous feedback loops where communication units automatically transmit firefighter status and location data to the incident commander. The incident commander receives real-time updates without manual input, enabling immediate detection of isolated firefighters and rapid response while maintaining incident commander productivity

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent replaces manual mechanical monitoring methods with automated electronic communication systems. The radios and processors automatically track firefighter status, eliminating the need for incident commanders to manually check on each team member, thereby reducing time loss while maintaining or improving productivity

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If wearable communication units with both short-range and long-range radios are deployed to each firefighter, then detection of disconnected firefighters is improved, but the weight and complexity of equipment increases

Engineering Contradiction:
Improvedetection accuracy of disconnected firefightersVSAvoidfirefighter equipment weight
Core Design Contradiction:
Measurement precisionVSWeight of moving object

Solution Approach 1:

The communication units are designed as multi-functional devices that integrate both short-range and long-range radios, identification signal transmission, health data monitoring, and automatic disconnection detection in a single wearable unit. This universal design improves detection accuracy while minimizing additional weight by consolidating multiple functions into one device rather than adding separate equipment for each function

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP3529786B1Automated sensing of firefighter teams
Publication Date: 2022.06.15 HONEYWELL INTERNATIONAL INC
  • EP3529786B1 patent drawingFigure 1
  • EP3529786B1 patent drawingFigure 2
  • EP3529786B1 patent drawingFigure 3

AI summary

A system and method for monitoring emergency personnel during an emergency incident is disclosed. The emergency personnel wear wireless communication units (CU) including a short-range radio and a long-range radio. CUs are configured to periodically transmit a unique identification from the short-range radio of the CU, receive the unique identification transmitted from the short-range radio of any other CU within range of the short-range radio, and transmit a data packet from the long-range radio, each data packet containing the unique identification of the CU and all the unique identifications recently received from any other CUs. The system can include an incident command monitoring system including a computing device to access a personnel and unique identifier database and analyze the data packets and initiate an alert if the unique identification associated with one of the emergency personnel has not been received by the communication unit of a team member.