Demonstrations

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UofU CPS Group to compete in EVAAL localization and activity recognition competition

University of Utah CPS group logo

The University of Utah CPS Project group will compete in the 2nd annual EVAAAL competition in Spain in July, 2012. Our team, led by postdoctoral associate Dr. Maurizio Bocca, will use radio tomography technologies in order to locate people in residential environments. EVAAL is short for "Evaluating Ambient Assisted Living Systems through Competitive Benchmarking" and is a competition designed to test the performance of technologies for "ambient" assisted living (AAL) in two tracks:

  • Track 1 on Indoor Localization and Tracking for AAL, to be held on the 2-6 July, 2012 at the Living Lab of the Polytechnic University of Madrid, Spain.
  • Track 2 on Activity Recognition for AAL, to be held on the 9-13 July, 2012 at the CIAmI Living Lab in Valencia, Spain.

Many systems are proposed and multiple research groups around the world are developing technologies. The EVAAL competition is designed to provide a single standard test environment and situation in order to benchmark different systems. Over time, providing a means to directly compare different technologies may aid in identifying the best technologies and systems for use in ambient assisted living applications. An NSF cyber-physical systems (CPS) grant titled "Enabling and Advancing Human and Probabilistic Context Awareness for Smart Facilities and Elder Care", with PIs Dr. Neal Patwari, Dr. Suresh Venkatasubramanian, Dr. Anind Dey (CMU), and Dr. Sneha K. Kasera, has helped to fund our research in this area.

Paper and demo presentation at SECON

SPAN researcher Yang Zhao will present his research in "Noise Reduction for Variance-Based Device-Free Localization and Tracking" on Wednesday June 29 at IEEE SECON 2011, which is here in Salt Lake City the week of June 27-30. The talk on his paper is during the 10:30-noon "Detection and Tracking" session. He will also present a live demonstration of his SubVRT algorithm at the SECON demo session, which is being held Tuesday from 5-6:30pm. See the SECON program for more details.

Come see radio tomography at COE Day, Oct 31

The University of Utah is holding College of Engineering Day on October 31st in the Warnock Engineering Building (map), and the SPAN lab will perform a live demonstration of our radio tomographic imaging system. Yes, it's Halloween, but its no trick! We are actively recruiting the next generation of engineering students. COE Day is a half-day event, 9:00am - 12:30pm, open to high school students, undecided majors and transfer students interested in engineering. This event is designed to introduce students to a variety of engineering disciplines, and the SPAN demo is just one of many that you can see.

Radio Tomography Demonstrated at Cyber-Physical Systems (CPS) Week

Joey Wilson and Prof. Neal Patwari demonstrated "Real-time Tag-free Localization using Radio Tomography" at CPS Week 2009 in San Francisco, CA, on April 13, 2009. CPS Week is a forum which brings together researchers in three areas of CPS -- real-time embedded systems, sensor networks, and hybrid systems. The demo and poster session was packed with people and many visitors were able to participate in the radio tomographic imaging (RTI) demo. As many as eight people at a time stood or moved in the RTI area (a square area surrounded by radios) and a laptop showed an image of where in the square they were located.

Visitors to RTI demo at CPS Week 2009 Visitor to RTI demo and RTI estimate at CPS Week 2009
Figure: Visitors interact with the radio tomographic imaging demonstration system. The real-time demo shows an estimate on the laptop of where in the square area attenuating objects, including people, are located.

Mobicom 2008 Best Demo Award

Joey Wilson at Mobicom 2008
Figure: Joey Wilson stands inside of the deployed wireless network during the Mobicom 2008 Student Research Demo Competition. The changes in path losses measured between sensors is used in an inverse algorithm to estimate how much attenuation is caused as a function of space. The current image estimate is projected onto the wall behind him, showing in dark red where he is estimated to be.

Congratulations to graduate student Joey Wilson, who on Wed. September 17 won the MobiCom 2008 Student Research Demo Competition! (See the U of U's "Recognizing U" site) Joey presented the demo, "Radio Tomographic Imaging", on Tuesday, September 16, among nineteen student research demos presented at the Mobicom 2008 conference. It had been accepted from among 28 demo proposals submitted. On Wednesday morning, Joey found out his demo was accepted to be a finalist along with two other demos. He prepared a talk and participated in a talk competition with the other finalists. Wednesday evening, it was announced that Joey had won the student research demo competition.

The demo, "Radio Tomographic Imaging" (RTI) demonstrates Joey's research into radio signal strength-based passive imaging of people and objects who are within a wireless network deployment area. The goal is to use large networks of extremely simple radio devices to image motion within rooms and buildings from behind walls. The research is funded by an NSF CAREER award #ECCS-0748206, for "RF-Sensing Networks for Radio Tomographic Environmental Imaging", supervised by Prof. Neal Patwari.

ACM MobiCom 2008, held in San Francisco, is the 14th in a series of annual conferences sponsored by ACM SIGMOBILE dedicated to addressing the challenges in the areas of mobile computing and wireless and mobile networking. The MobiCom conference series serves as the premier international forum addressing networks, systems, algorithms, and applications that support the symbiosis of mobile computers and wireless networks. MobiCom is a highly selective conference focusing on all issues in mobile computing and wireless and mobile networking at the link layer and above.

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