Fujitsu Corporation

Shreyans Gandhi

Jawahar Jain

David Loren Marvit

Madan Bahadur

Stergios Stergiou

A method of determining stress includes receiving a data signal including multiple consecutive RR intervals of a subject. The method may also include calculating heart rate variability (HRV) data for the subject from the data signal. The method may also include calculating an RR integral average (RRIA) from the HRV data, the RRIA indicating a stress level of the subject.

Stress model based on RR integral average

A method of determining stress based on renal blood flow. The method includes receiving data indicating renal blood flow of a subject. The method also includes calculating a power spectrum of a signal derived from the data. The power spectrum indicates a stress level of the subject.

Frequency domain analysis transform of renal blood flow doppler signal to determine stress levels

In particular embodiments, a method includes accessing data streams from one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, a mood sensor, or an accelerometer monitoring a person, accessing a stress model, analyzing the data streams with respect to the stress model, and determining based on the analysis a current stress index of the person.

Continuous monitoring of stress using a stress profile created by renal doppler sonography

In particular embodiments, a method includes accessing data streams from a renal Doppler sonograph and one or more of a heart-rate monitor, a blood-pressure monitor, a pulse oximeter, or a mood sensor monitoring a person, and generating a stress model of the person based on the data streams.

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Mumbai, India

Shreyans Gandhi