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Presentation for Haptic Feedback for VR Eniviroments

Presentation · May 2018

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1 author: Some of the authors of this publication are also working on these related projects: Haptic Feedback for VR Enviroments View project Sensing and measurement technologies for wound health dynamics View project Michael John Burke University of Hull

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Haptic Feedback for VR Environments

S tudent - Michael Burke 201403540 1st S upervisor – Dr. Anthony Bateson 2nd S upervisor – Dr. Jon Purdy

Introduction

• The aim for this proj ect was to create a “ haptic feedback

device in a wearable, scalable manner” (Lindeman, 2003), in the form of a j acket that uses solenoids as a feedback medium, for use in virtual reality (VR) environments. The system described could potentially be used as “ a valuable training aid where training in real life situations would be impractical because, for example, it would be dangerous, logistically difficult, unduly expensive” (Rose, 2000).

Inspiration

• The inspiration for this proj ect was to increase user

engagement in virtual reality worlds through the use of haptic feedback.

Inspiration for Haptic Jacket (www. blog.cloudhelix.io)

Background

• A good haptic feedback system would provide valuable

stimulus to the user, which should allow the user to feel more immersed in their chosen environment.

• VR systems have become more immersive with technology,

such as the Oculus Rift which is said to “ provide the user with experiences that were earlier thought to be merely a dream or nightmare.” (Dasai, 2014).

Existing Products

KOR-FX 4DFX Jacket (KOR-FX, 2017) 3rd S pace Jacket (3rd S pace Jacket, 2017) S UBP AC M2 Jacket (S ubPac M2, 2017) WOOJER Jacket (Wooj er Vest, 2017) HARDLIGHT VR Jacket (Hardlight VR,2017)

Concepts

• Compressed air concept was

discarded quickly since the idea

• f carrying an air compressor

was large, impractical, expensive and noisy.

• transducers; however, it was

discarded because of cost, size and safety matters. The transducers can also cause artifacts in medical devices.

12V Air Compressor (www.quadratec.com) Micro Transducers used in a P300 study (H Y aj ima, 2014).

Aims & Objectives

• Creating software for the Arduino µController
• Creating a first person shooter (FPS

) virtual environment (VE) in Unity3D

• Building hardware for Haptic Jacket
• Testing VE and Hardware
• Testing with human participant s to show

levels of engagement (Ethics)

Flow Chart

S TART GAME COLIS ION

CARR Y ON

GAME S ENDS DATA VIA US B ARDUINO RECIEVES DATA ARDUINO S ENDS CONTROL S IGNAL ACTIV ATES S OLENOIDS

PLAYER CARR Y’ S ON

FINIS H MARKS ERP DATA WITH EEG OUTPUT TO PC 2nd S tage

YES YES NO NO

Progress

• Developed a fully working VE using Unity 3D.
• Designed the Electronics for the j acket.
• Designed a printed circuit board using EAGLE.
• Built a Haptic Feedback Jacket.
• Tested the Haptic j acket with the developed VE

Results & Testing

• Virtual Environment
• VE Level Map
• Teleportation (Lack of movable area)
• Hit Event Player
• Hit Event Enemy
• Gun Firing S
• und FX
• Final Obj ective (Defuse the Bomb)

Results & Testing

• Virtual Environment Map
• S

tart (Green)

• Enemy Location (Orange)
• Final Obj ective (Red)

Results & Testing

• Teleportation S

ystem

• HTC Hardware
• Teleportation Reticule (Red)

Results & Testing

• Hit Event
• Raycast (Green Line)
• Player Transform (Green Box)
• Player Hit Event

Results & Testing

• Final Obj ective
• Defuse Bomb
• Plays Pickup S
• und FX

Results & Testing

Results & Testing

• Haptic Feedback Jacket
• Hardware Built & Tested inc. PCB, Arduino, Power
• Jacket Constructed
• Player Hit Event Registered
• Data Output via COM port (Hit Event)
• µController Activates S
• lenoid

Results & Testing

• Hardware Built & Tested
• PCB
• Power Boost
• Integrating Arduino MEGA

Results & Testing

• Construction of Haptic Jacket
• Ingrating S
• lenoids with

µController.

• Creating Zones S
• lenoids
• Constructing Final Jacket

Results & Testing

Project Management

Project Management

Conclusion

• The main focus of the proj ect was to make the VE more

immersive to participants.

• To measure of how immersive the environment is with and

without haptic feedback.

• The VE and j acket were fully built and tested together.
• Human participant trail would have possibly shown more

conclusive data.

Future Work

• Improving Vest Feedback Zones
• Larger Test Group (Ethics)
• Design more Haptic Technology such as Arms, Gloves

and Legs

Future of VR, (www.conceptsvideo.com, 2018)

Problems

• Originally a commercial game was going to be

reverse engineered.

• Human participant testing was going to take

place, ethics were applied for.

References

• Lindeman. W, R.W. and Cutler., 2003, Controller Design for a

Wearable, Near-Field Haptic Display, Proc. of the 11th S

• ymp. on

Haptic Interfaces for Virtual Environment and Teleoperator S ystems, pp.1.

• Rose, F

.D., Attree, E.A., Brooks, B.M., Parslow, D.M. and Penn, P .R.,

• 2000. Training in virtual environments: transfer to real world tasks and

equivalence to real task training. Ergonomics, 43(4), pp.494-511.

• Y

aj ima, H., Makino, S . and Rutkowski, T .M., 2014, December. P300 responses classification improvement in tactile BCI with touch-sense

• glove. In S

ignal and Information Processing Association Annual S ummit and Conference (APS IP A), 2014 Asia-Pacific (pp. 1-7). IEEE.

Questions