Based on work as part of the Children’s Hospital of Atlanta (CHoA) pediatric seed grants competition, a team of researchers put together this report in 2013 on the design of a battery-free moisture sensor for diapers and bed-wetting. The final design showed that diversity antennas feeding two RFID chips and a common moisture sensor could be placed on a low-cost, flexible inset and interrogated accurately in a room with a UHF RFID reader. Download the report here.
2013: Wireless Diapers
Blake Marshall designs an inset for “wireless diapers” — a passive, low-cost inset that can relay moisture measurements to a 915 MHz RFID reader.
In 2013, the GTPG partnered with the Children’s Hospital of Atlanta’s Pediatric Innovation Seed Grant program to develop what colloquially became known as “wireless diapers”. The thin, low-cost, flexible inset could be placed inside of a diaper or a garment and read by a standard 915 MHz RFID reader. With two diversity antennas and a capacitive moisture sensor, the sensor could reliably power up and measure moisture — even while worn by the user.
Wireless Without Batteries
Below is the summary of the now-complete Wireless Without Batteries lectures series that was placed on the YouTube channel. The playlist for the entire lecture series may be found here.
Twelve Years of Papers in IEEE RFID
In less than 2 months, the IEEE RFID 2019 Conference will kick-off in beautiful San Diego, California. It is the 13 in the conference series and the 12-consecutive event that our group has attended. What started with an invite in 2008 to the Las Vegas conference by then TPC-chair Daniel Deavours has turned into an annual event for our group … and a haven for some of the best multi-disciplinary researchers in the IEEE community. Below is a list of the full-length papers that have been submitted over the years by our group (students bold-faced, as per GT curriculum vitae guidelines). There are 25 total papers to IEEE RFID (and 4 more to the related, international RFID-TA series):
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