AR Head Display for Firefighters Using Eye Tracking
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Solution Overview
Problem
Firefighters face challenges in coordination, communication, and situational awareness during firefighting operations, which affect their effectiveness and safety.
Innovation Solution
An Advanced Extended Reality Head Display Unit equipped with augmented reality/virtual reality technology, sensors, and artificial intelligence, providing real-time data on team member positions, target locations, heat visualization, and tactical strategies, enhancing situational awareness and coordination through a headset-mounted display system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If traditional firefighting equipment is used, then device complexity is low, but situational awareness and coordination are insufficient
Solution Approach 1:
The patent combines multiple information sources (thermal imaging cameras, visible light cameras, GPS location data, team member status data, building plans) into a single augmented reality display system. This merging of disparate data streams provides comprehensive situational awareness while managing complexity through integrated processing and display.
Solution Approach 2:
The system overlays digital information (thermal images, location markers, team status indicators) onto the physical field of view, creating an augmented reality dimension. This allows firefighters to perceive multiple layers of information simultaneously without adding physical complexity to the environment.
2Ease of operation
If multiple team members operate independently, then coordination is difficult, but communication overhead increases
Solution Approach 1:
The system provides real-time feedback to each firefighter about team member locations, status, and environmental conditions through the AR display. This continuous feedback loop enables automatic coordination without requiring constant verbal communication, reducing communication overhead while improving team coordination.
Solution Approach 2:
The AR display system acts as an intermediary that automatically processes and distributes coordination information among team members. Instead of direct peer-to-peer communication, the system mediates information flow, reducing the need for explicit communication while maintaining coordination.
3Difficulty of detecting and measuring
If visual details are obscured by smoke and heat, then target detection is difficult, but additional sensors increase device complexity
Solution Approach 1:
The system employs multiple sensor types (thermal imaging, visible light, GPS) that serve multiple functions. The thermal camera detects heat signatures for target detection while also providing environmental temperature data. The visible light camera captures scene context and can be used for navigation. This multi-functionality reduces the need for additional specialized sensors.
Solution Approach 2:
The system divides the detection task across multiple sensor modalities, with each sensor handling specific aspects of target detection. Thermal imaging handles heat signature detection, visible light handles visual context, and GPS handles location tracking. This segmentation allows each sensor to be optimized for its specific function while collectively providing comprehensive detection capability.
4Productivity
If firefighters rely on verbal communication, then coordination is possible, but communication efficiency decreases
Solution Approach 1:
The system replaces verbal communication (acoustic mechanism) with visual information display through the AR interface. Tactical information, team status, and environmental data are presented visually rather than through radio communication, improving information accuracy and reducing miscommunication while maintaining firefighting efficiency.
Data Source
AI summary
In this patent, an advanced head display unit designed primarily for fire fighters is disclosed. The advanced augmented reality/virtual reality (AR/VR) head display unit improves coordination between teammates through eye tracking coupled with augmented reality features. This allows one fire fighter to know where another fire fighter is looking and helps coordinate tasks by dividing the scene into sectors and visibly marking each sector. Further, this system helps determine where to hose with a smart target system. Further, multiple sensors are utilized together to triangulate the location of a victim's voice. Additional advantages are also disclosed above.