Advanced ruggedized augmented reality instrumented self contained breathing apparatus

• US 7,034,779 B2
• Filed: 12/17/2003
• Issued: 04/25/2006
• Est. Priority Date: 08/06/2002
• Status: Expired due to Fees

• Current Assignee: Information Decision Technologies LLC
• Original Assignee: Information Decision Technologies LLC
• Inventors: Ebersole, John Franklin Jr.
• Primary Examiner(s): Shankar, Vijay
• Assistant Examiner(s): Patel, Nitin
• Application Number:
  US10/739,575
• Publication Number:
  US 20040130504A1
• Time in Patent Office: 860 Days
• Field of Search: 345/7, 345/8, 345/633, 128/205.27, 128/205.28, 128/205.29, 128/201.19, 128/201.29, 128/202.13, 356/620, 340/626, 340/571, 455/351, 455/661, 455/662, 381/367, 381/381, 434/226, 600/595
• US Class Current: 345/8
• CPC Class Codes: A62B 18/04 Gas helmets
• CPC Class Codes: A62B 9/006 Indicators or warning devices, e.g. of low pressure, contamination
• CPC Class Codes: G02B 2027/0138 comprising image capture systems, e.g. camera
• CPC Class Codes: G02B 2027/0187 slaved to motion of at least a part of the body of the user, e.g. head, eye
• CPC Class Codes: G02B 2027/0198 System for aligning or maintaining alignment of an image in a predetermined direction
• CPC Class Codes: G02B 27/017 Head mounted
• CPC Class Codes: G02B 27/0176 characterised by mechanical features

Abstract

An augmented reality instrumented SCBA with electronic equipment with positional tracking equipment, airflow of both the user'"'"'s breathing and electronic cooling, and a head pad that allows the unit to rest more comfortably on a user'"'"'s head.

Claims

1. A ruggedized Self Contained Breathing Apparatus (SCBA) instrumented with electronic and passive equipment so that the instrumented SCBA can be used in augmented reality-based training in which the location and orientation of the user'"'"'s head is tracked by a tracking system that has passive or active tracking system components located in the training environment, and active tracking system components carried on the person of the user, comprising:

an instrumented SCBA mask adapted to be worn by a user to cover at least the user'"'"'s mouth and nose, the instrumented SCBA mask comprising a breathing portion adapted to cover at least the user'"'"'s mouth and nose;

a head mounted display for displaying to the user an augmented reality or virtual reality image;

an image shifter;

a covering device that covers at least part of the breathing portion, to protect at least some of the breathing portion and at least some of the electronic and passive equipment from shock and environmental hazards; and

at least three detecting elements of the head tracking system, the detecting elements directly or indirectly coupled to the SCBA, so that both the location and orientation of the user'"'"'s head can be determined by the tracking system.

2. The ruggedized SCBA of claim 1 in which the detecting elements comprise microphones that are mounted so that they are exposed to the outside of the covering device.

3. The ruggedized SCBA of claim 2 in which the field of view of at least one microphone overlaps the user'"'"'s field of view.

4. The ruggedized SCBA of claim 2 in which the detecting elements comprise four microphones organized into two pairs, with one of each pair located on one side of the user'"'"'s head, and the other of each pair located on the other side of the user'"'"'s head.

5. The ruggedized SCBA of claim 4 in which a first pair of the microphones is located toward the front of the SCBA and a second pair of the microphones is located toward the rear of the SCBA.

6. The ruggedized SCBA of claim 5 in which the microphones of the first pair are each adapted to receive sound waves emanating generally from in front of and above the user'"'"'s head, and the microphones of the second pair are each adapted to receive sound waves emanating generally from in back of the user'"'"'s head.

7. The ruggedized SCBA of claim 1 in which the instrumentation is shielded to improve tracking quality.

8. The ruggedized SCBA of claim 1 in which the breathing portion comprises a compressed air breathing regulator that is used without compressed air in order to act as a one-way valve that passes air exhaled by the user from the SCBA mask.

9. The ruggedized SCBA of claim 1 in which the breathing portion comprises a compressed air breathing regulator that is used with compressed air, and wherein the SCBA mask is not air-tight, thus allowing the compressed air and exhaled air to exit the SCBA mask through gaps in the SCBA.

10. The ruggedized SCBA of claim 1 in which the breathing portion comprises a compressed air breathing regulator that is used with compressed air, and wherein the SCBA mask is air-tight, thus allowing normal use of the SCBA breathing systems, and allowing compressed air and exhaled air to exit the SCBA through the standard exit in the regulator.

11. The ruggedized SCBA of claim 10 further comprising an additional one-way valve to allow air into the SCBA mask in the case that the user inhales, and no compressed air is available.

12. The ruggedized SCBA of claim 1 further comprising

louvered air vents in the SCBA located such that air entering through the vents flows directly onto at least some of the electronic equipment.

13. The ruggedized SCBA of claim 1 further comprising

a resilient pad attached to the covering device in such a manner as to support the SCBA directly on the user'"'"'s head.

14. The ruggedized SCBA of claim 1 further comprising

a cable bundle wrapped with a high strength polymer cable wrap to add durability.

15. The ruggedized SCBA of claim 1 in which the detecting elements comprise optical sensors.

16. The ruggedized SCBA of claim 15 in which the detecting elements comprise four optical sensors organized into two pairs, with one of each pair located on one side of the user'"'"'s head, and the other of each pair located on the other side of the user'"'"'s head.

17. The ruggedized SCBA of claim 16 in which a first pair of the optical sensors is located toward the front of the SCBA and a second pair of the optical sensors is located toward the rear of the SCBA.

18. The ruggedized SCBA of claim 17 in which the optical sensors of the first pair are each adapted to receive signals emanating generally from in front of and above the user'"'"'s head, and the optical sensors of the second pair are each adapted to receive signals emanating generally from in back of the user'"'"'s head.