Graeme Smith Supervisors: Dr James Gain Description Create a - - PowerPoint PPT Presentation

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Graeme Smith Supervisors: Dr James Gain Description Create a - - PowerPoint PPT Presentation

Jason Brownbridge Graeme Smith Supervisors: Dr James Gain Description Create a virtual environment from robot sensors Allow operator to control robot by manipulating it within the virtual environment Conduct research into effect of


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SLIDE 1

Jason Brownbridge Graeme Smith Supervisors: Dr James Gain

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SLIDE 2

Description

 Create a virtual environment from robot sensors  Allow operator to control robot by manipulating it

within the virtual environment

 Conduct research into effect of latency, optimal

acceleration function and comparison between new system and existing systems.

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SLIDE 3

Background (1) - Wii

 What is the Wii?  Why?

 Allows us to implement

 Head Tracking  Haptic Feedback  Audio Feedback  Provide Control Mechanism

 Relatively Cheap (< R500)  Readily Available  Freely Available SDKs

Wiimote Wii Nunchuck

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SLIDE 4

Background (2) - Robots

  • Rescue Robots
  • World Trade Centre 2001
  • South Africa mine rescues
  • Surveillance Robots
  • Military
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SLIDE 5

Headband containing infrared sources Stereoscopic headset Wiimotes mounted

  • n backpack

Backpack containing laptop Nunchuck

System

  • Robot
  • Headtracking
  • Driving Control
  • Simulator
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SLIDE 6

Research

 Covers both Teleoperation and Virtual Environments  We will address the following key questions:

1.

What role does latency play in camera control and how can it be mitigated?

2.

What role does latency play in driver control and how can it be mitigated?

3.

What is an optimal function for acceleration control?

4.

How does our system perform in comparison to a traditional joystick monitor systems?

 How?

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SLIDE 7

Experimentation

 Methodology

 User based and Quantitative

 Ethical Issues

 Simulator sickness

 Experiments

1.

Different Latency Mitigation Strategies

Effect on simulation sickness – use a questionnaire

2.

Different Acceleration Functions

Effect on performance – use metric of navigation time

3.

Comparison of new System with Traditional System using the following metrics

Navigation Time

Task Performance Rate

Learning Time

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Dividing of Work

  • System
  • Simulator

Graeme

  • Robot Control

Graeme

  • Lag issues
  • Acceleration function
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Initial System Prototype Incorporation of Experimental Results based on Final User Testing