1. ACCESS GRID Group to Group Collaboration
With High end Community Audio Video Conferencing
Gurhan Gunduz
Florida State University
CSIT (School of Computational Science and Information Technology)
400 Dirac Science Library
Tallahassee
Florida
1/14/2019

2. What is AG?(1) http://www.mcs.anl.gov/fl/accessgrid/
The Access Grid is a system that enables group to group collaboration across the internet by providing multiple video and audio streams among them. It is designed in Argonne National Laboratories.
The Access Grid consists of many AG nodes around the country.
Currently there are almost 20 nodes in US.
We propose putting them throughout DoD MSRC and DC
1/14/2019

3. What Is AG?(2)
The access grid project focus is to enable groups of people to interact with grid resources and to use the grid technology to support group to group collaboration at a distance
Improved the user experience
Provide a sense of presence
Support natural interaction modalities
Relatively unsophisticated shared document model. Can use with WebEx Centra etc.
1/14/2019

4. Access Grid Basics Designed spaces for group interactions
Presenter
camera
Presenter
mic
Ambient mic
(tabletop)
Audience camera
Designed spaces for group interactions
Hands free high quality audio
Multiple video and audio streams
Large format displays
Shared PowerPoint
1/14/2019

5. Networking Wide-area IP multicasting.
Four video and one audio streams from each AG node.
Network monitoring is crucial
Substantial support needed
1/14/2019

6. AG Node
Access Grid nodes are "designed spaces" that explicitly contain the high-end audio and visual technology needed to provide a high-quality compelling user experience.
Sound
Echo Cancel box
speakers (2)
Microphones
Cameras
Projectors
PC’s
1/14/2019

7. AG Node Equipment – PC’s
Display Machine
Audio Capture Machine
Video Capture Machine
Control machine
1/14/2019

8. Components of an AG Node
RGB Video
Digital Video
Display
Computer
Network
Shared App,
Control
NTSC Video
Video Capture
Computer
Digital Video
Analog Audio
Digital Audio
Audio Capture
Computer
Mixer
Control
Computer
RS232 Serial
Echo
Canceller
1/14/2019