Integrated Virtual Reality and Head Movement Tracking System

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14 Νοε 2013 (πριν από 3 χρόνια και 6 μήνες)

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Alternative Design #3

Integrated Virtual Reality and Head Movement Tracking System


Team Members: Eleni Kursten, Ryan Manning, and Jennifer Chaisson

Client: Dr. John D. Enderle, University of Connecticut,

Alternative Design 3

A third option for the design of our Integrated Virtual Reality and Head Movement
Tracking System will allow the virtual reality display to be incorporated into a variety of head
gears. The client would ultimately like his device for detecting mild traumat
ic brain injury to be
used in applications such as the National Football League, the National Hockey League, the
military, etc. When it comes to the NHL and NFL, many teams try to disclose information from
the media with regards to the injuries of their pl
ayers. Especially during playoffs, opponents
sometimes purposely try to place as many hard hits as possible on players they know are injured.
For this reason, it might be beneficial for a team to try to disguise that one of their players is on
the sideline
s being tested for a possible concussion. That is why our third design allows the
virtual reality system to be incorporated into any helmet that can also include a visor. Similar to
the images shown in Figure
, many professional athletes wear tinted visor
s to reduce glare.
Attaching the virtual reality device behind a mirrored visor might conceal the fact that a player is
actually taking a concussion test.


Superstar professional athletes Alex Ovechkin (left, NHL) and Ladainian Tomlinson (right, NFL)

The virtual reality device that will be used for this design will be the VR920 Eyewear
from Vuzix (Figure
). The ear pieces and speakers that are built into th
e VR920 will be
removed and a light
blocking add
on will be used. The device will then be attached to the inside
of a mirrored visor. The inside of the visor will be painted black to further block out unwanted
light. All hockey helmets are adjustable to ac
commodate many head sizes; however, football
helmets are not. Therefore, removable foam pads will be used inside a football helmet to assure
that the helmet fits the test subject properly. As was previously mentioned, this design is ideal for
multiple situ
ations and applications. An example of how this design could be effective in
disguising the virtual reality stimuli tests is given in Figure
, which displays an image of a
homemade flight simulator using the VR920 Eyewear incorporated into the visor of a
helmet that
was made to look like a fighter pilot helmet.

Figure 5.
VR920 Eyewear from Vuzix

Figure 6.
Disguising the VR920 Eyewear using a visor and a helmet for flight simulation tests

A Wii remote and sensor bar will be used to track the head movements of the person
wearing the head gear. The Wii sensor bar contains multiple infrared sensors on both sides. Our
design will place at least one infrared sensor on either side of the helmet v
isor. The Wii remote
will be fixed a distance away from the test subject. Data acquisition software will be used to
obtain the real time XYZ positions of the test subject’s head, while LabVIEW will be used to
plot the acquired data. The audio stimuli test
setup will be the same as the setup discussed in our
second alternative design.

Figure 4. Wii remote and sensor bar