American Association for the Advancement of Science 2007 Annual Meeting
Frank Vernon of IGPP points to the waveform traces after remotely running the SFSI shaker.
The High Performance Wireless Research and Educational Network (HPWREN http://www.hpwren.com/) is an instrumental partner with NEES@UCSB. It is through the HPWREN network that data is streamed from the remote sites at Garner Valley and the Imperial Valley Wildlife Management Area to computer systems at UCSB for analysis and storage.
At the 2007 annual meeting of the American Association for the Advancement of Science (http://www.aaas.org/), the remote telepresence and teleoperation features of the experimental structure at Garner Valley were demonstrated to scientists attending the meeting in San Francisco, through an interactive display at the National Science Foundation booth in the exhibition area. Frank Vernon of the Institute of Geophysics and Planetary Physics (IGPP http://www.igpp.ucsd.edu/) remotely activated the 80kg shaker mounted to the experimental structure and displayed waveforms recorded by sensors located on and around the structure.
Through a secure web page, a list of pre-programmed functions is available to excite the shaker mass through a range of frequencies. The response of the structure as these frequencies sweep past the structures resonance modes is clearly seen as the waveform amplitudes increase and decrease. By remotely conducting daily shaking tests, researchers are monitoring the affects of seasonal changes such as soil moisture and temperature on the structure's response.
The telepresence camera provided a live view of the remote site.
Bob Nigbor and Steve Kang along with NEES@UCLA mobile command center were also on site at Garner Valley. Using the telepresence capabilities, a virtual tour of the NEES@UCLA and NEES@UCSB equipment sites was provided to the meeting participants in San Francisco. Robert Nigbor, a structural engineer with NEES@UCLA, and Jamison Steidl, a seismologist with NEES@UCSB, described what the folks back in San Francisco were seeing when the structure was being shaken and remotely interacted through a question and answer session with the HPWREN and NEES cyber infrastructure providing data, video, and audio connectivity.
Our very special thanks to the entire HPWREN team and especially Hans-Werner Braun for managing our presentation along with several others.
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