Vital Sign Monitoring from Inside a Mattress
Analog Devices' vital signs monitoring portfolio includes optical sensors, bioelectric analog front ends, bioimpedance engines, low-power motion sensors, and high-precision temperature sensors. Integrated optical modules or sensor interfaces can enable photoplethysmography (PPG) measurement for optical heart rate, heart-rate variability, and pulse oximetry (SpO2), for example. In addition, their precise and low-power analog front ends enable bioelectric measurement for electrocardiogram (ECG), EMG, EEG, and similar applications.
ADI’s non-contact vital signs monitoring (NCVSM) system enables accurate and robust vital signs monitoring in a hospital or care-facility bed. The ADXL355 accelerometer is placed within the mattress. While a person sleeps on the bed, the NCVSM algorithm processes the data to determine the heart rate, heart-rate variability, and respiration rate.
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About the Author
Alix Paultre
Editor-at-Large, Electronic Design
An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the US military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications in the embedded electronic engineering space. Alix currently lives in Wiesbaden, Germany.
Also check out his YouTube watch-collecting channel, Talking Timepieces.