Applications of Virtual Reality
• Military
– Predator Drone
• Miners / NASA
– Distant and Dangerous
• Doctors
– Antarctica
Motion Tracking HMD
Nick Sorenson
Adam Thompson
Existing Products
• Expensive
• Inaccurate
• Limited range
HMD
LCD Glasses
•Two 0.55-inch LCD screens
•Creates the effect of viewing a
52-inch screen from 6.5 feet
away
•800x225 Pixel resolution
•S-Video and RCA connections
•AC or Battery powered
Accelerometers
HMD
Accelerometers
An accelerometer is a device for measuring
acceleration. An accelerometer inherently measures its
own motion.
Accelerometers are used along with gyroscopes in
inertial guidance systems, as well as in many other
scientific and engineering systems. One of the most
common uses for micro electro-mechanical system
(MEMS) accelerometers is in airbag deployment
systems for modern automobiles. In this case the
accelerometers are used to detect the rapid deceleration
of the vehicle to determine when a collision has occurred
and the severity of the collision.
From wikipedia.org
Accelerometers
• Provide measurement of the acceleration
of the user’s head
• Analog or PWM (Pulse Width Modulated)
output
• Can measure 360° by mounting 2
accelerometers perpendicular
Accelerometers
HMD
Microcontroller
Accelerometers
HMD
Microcontroller
RC Car
Camera
Soft Ware
Two Paths
•
Microcontroller
•
Device Driver
Accelerometers
HMD
Monitor
Computer
Game, application
Microcontroller
RC Car
Pseudo Driver
Hardware Components
LCD Glasses
Microcontroller
Accelerometers
Radio Controlled Car
Wireless Camera
Servos
Computer
Misc. Circuitry (Resistors, Capacitors,
Potentiometers, etc.)
WOW
•
•
•
•
•
•
Wireless
Real Device Driver
Pitch and Yaw
Re-Centering
Extra Function Buttons
Range of Motion
Range of Motion
Applications
• Virtual reality
• In Medicine
June
July
August
September
October
November
micro controller
programming
device driver
programming
accelerometers
(how they work)
accelerometers (physical
fitting to HMD)
digital analog
converter
Legend
RC car servos
Adam
RC car joints and
interface
Nick
December
Questions?
Details at
http://www.cs.utah.edu/~adamt/hmd.html