Creating a remote sensor to detect health troubles
A Cornell doctoral student is building a company based on a radio-based technology that could sense cardiac and respiratory troubles for patients without the need for them to wear a bulky monitor or skin electrodes. SensVita, developed by electrical engineer Thomas Conroy, uses near-field radio frequency sensing.
Millimeter-precision RFID localization
An experimental multiple-input–multiple-output (MIMO) network was implemented by a Universal Software Radio Peripheral (USRP) platform and harmonic RF markers to demonstrate millimeter-level 3-D localization at sub-1GHz carrier frequencies within heavy multi-path ambient, simulating the condition inside building structures.
Vital signs over radio with near-field coherent sensing (NCS)
The system works like radar, according to Edwin Kan, professor of electrical and computer engineering. But unlike most radar systems that rely solely on radio waves to measure movement, Kan’s system integrates “near-field coherent sensing,” which is better at directing electromagnetic signals into body tissue, allowing the tags to measure internal body movement such as a heart as it beats or blood as it pulses under skin.
No-touch measurements of vital signs in small conscious animals
Our touch-less method can measure the vital signs of small conscious animals, with minimal interference to the daily rhythms of the animal under test, not only facilitating small-animal studies but also providing alternatives to existing invasive, risky, and sometimes inhumane laboratory techniques.
Videos
- The electromagnetic simulation of NCS by CST Microwave Studio
- The real-time heartbeat and pulse monitoring experiment and signal details
- The NCS tag in front-pocket for heartbeat and respiration monitoring
- Real-time heartbeat and breath monitoring of the parakeet
- Real-time heartbeat and breath monitoring of the hamster
News
- Contactless health-care sensing (Nature)
- Engineers scrap the stethoscope, measure vital signs with radio waves (Cornell Chronicle)
- Simultaneous touchless monitoring of several patients’ vital signs (IEEE Spectrum)
- How do you take a hamster’s pulse? (Science)
- No-touch sensor measures vital signs of small animals (Cornell Chronicle)
- Tech used to thwart shoplifters could help keep buildings safe (Cornell Chronicle)