Real-time Evacuation Guidance via UWB Localization

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing evacuation systems in buildings fail to provide real-time, individual-specific guidance to individuals during emergencies, relying on offline emergency signs that cannot adapt to changing situations, thus not effectively helping people escape dangerous areas.

Innovation Solution

An evacuation management system connected to an ultra-wide band real-time localization system that receives alarm notifications, determines the location of personal ultra-wide band devices, and provides real-time guidance on optimal evacuation routes through these devices, ensuring individuals are directed to safe areas.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If offline emergency signs are used to show evacuation routes, then the system is simple and reliable, but it cannot provide real-time guidance and adapts to changing situations

Engineering Contradiction:
Improvereal-time adaptability to changing emergency situationsVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The evacuation signs are transformed from static offline displays to dynamic network-connected devices that receive real-time emergency data and update evacuation routes dynamically. The system can adapt to changing emergency situations by receiving updated information from emergency services and automatically adjusting guidance directions, turning the evacuation assistance system into a dynamic, responsive system.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system establishes a feedback loop where emergency service information is continuously received and processed by the evacuation assistance system. The system monitors emergency developments, receives updated guidance information, and automatically adjusts evacuation directions based on real-time feedback from emergency services, enabling adaptive response to changing situations.

Inventive Principle:
Principle #23Feedback

2Ease of operation

If pre-defined evacuation routes are shown on emergency signs, then the system is easy to operate, but it cannot provide individual-specific guidance based on real-time progression

Engineering Contradiction:
Improveease of evacuation guidanceVSAvoidloss of real-time emergency information
Core Design Contradiction:
Ease of operationVSLoss of information

Solution Approach 1:

The system transitions from static pre-defined routes to dynamic, real-time evacuation guidance that automatically adapts to changing emergency situations. The evacuation assistance system receives continuous updates on emergency progression and adjusts evacuation directions accordingly, providing both ease of operation and real-time information awareness.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system incorporates feedback mechanisms that continuously monitor emergency developments and adjust evacuation guidance in real-time. The system receives feedback from emergency services about the progression of emergencies and automatically updates evacuation directions, ensuring that guidance information remains current and accurate throughout the evacuation process.

Inventive Principle:
Principle #23Feedback

3Adaptability or versatility

If offline emergency signs are used, then the system has low device complexity, but it cannot monitor individual positions and provide personalized evacuation plans

Engineering Contradiction:
Improveindividual-specific evacuation planningVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments the evacuation assistance into individualized components by assigning unique identifiers to persons and creating personalized evacuation plans for each individual. The system tracks individual positions, monitors personal evacuation progress, and provides customized guidance based on each person's location and the evolving emergency situation, enabling tailored evacuation assistance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The network-connected evacuation signs serve multiple functions: they display real-time emergency information, provide dynamic evacuation guidance, monitor individual positions through integrated sensors, and deliver personalized evacuation plans. This multi-functional approach enables the system to handle diverse evacuation needs while maintaining a unified, coordinated response.

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

Data Source

PatentUS11557014B2Real-time managing evacuation of a building
Publication Date: 2023.01.17 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
  • US11557014B2 patent drawing
  • US11557014B2 patent drawing
  • US11557014B2 patent drawing

AI summary

The present disclosure relates an evacuation management system, EMS, (40, 52, 60, 00, 200) operative to provide real-time evacuation information for evacuation of a building, triggered by alarm notification (S202). Based on determined (S214) precise real-time positions of personal ultra-wide band, UWB, devices, as determined by UWB real-time localization system, RTLS, a controller determines (S210) evacuation plans being personal UWB device specific in real-time. Based on individual evacuation plans and input from building facilities, real-time guidance information is defined (S208) and sent to each personal UWB device, providing guidance to person carrying said personal UWB device, in what direction to move (S212), to reach a safe area. Based on localization signals the UWB RTLSA then calculates updated positions of the personal UWB devices and sends to the evacuation management system. It is an advantage that trapped or injured people can be found, even in low visibility areas.