JPWO2023180145A5

JPWO2023180145A5 -

Info

Publication number: JPWO2023180145A5
Application number: JP2024549624A
Authority: JP
Publication date: 2026-02-04

Claims

1. A method for assessing the reliability of an estimated metric related to a physiological state of a user, the method comprising:
acquiring one or more sensor signals related to a physiological condition of the user;
estimating a first metric and a second metric independently of each other using different methods and/or algorithms based on the one or more sensor signals, wherein the first metric is related to the second metric by a first mathematical function;
determining a first value of the first mathematical function;
comparing the first value to a boundary of the first value;
evaluating a confidence rating for the estimation of the first metric and/or the second metric based on the comparison; and outputting the evaluated confidence rating.

The method of claim 1, wherein comparing the first value with the first value boundary comprises determining whether the first value satisfies a relationship between the first mathematical function and the boundary.

The method of claim 1 or 2, wherein the boundary is a lower boundary and/or an upper boundary.

The method of claim 3, wherein comparing the first value with the first value boundary comprises determining whether the first value is higher than the lower boundary and/or lower than the upper boundary.

2. The method of claim 1, wherein the boundary is predetermined, or the method further comprises estimating the boundary based on any of a previous first metric, a previous second metric, a previous first value, or the one or more sensor signals.

The method of claim 1 , wherein any of the first metric, the second metric, and the first mathematical function is time dependent.

2. The method of claim 1, further comprising determining a second value of a second mathematical function relating the first mathematical function to the boundary, wherein assessing a confidence rating for the estimation of the first metric and/or the second metric is based on the second value.

The method of claim 1 , wherein assessing the reliability assessment comprises assigning a binary or continuous score to the estimate of the first metric and/or the second metric.

The method of claim 1 , further comprising adapting or modifying a method for estimating the first metric and/or the second metric based on the reliability assessment.

the one or more sensor signals comprise any of an acceleration signal, a gyroscope signal, a heart rate signal, a respiration signal, an oxygen saturation signal, a movement signal, a force signal, a pressure signal, an electromyogram signal, a temperature signal, a calorie expenditure signal, a global positioning system signal, a camera signal, a radar signal, a speed measurement signal, a torque measurement signal, an electrocardiogram signal, an electroencephalogram signal, a photoplethysmography signal, a barometer signal, a muscle tension signal, a sweat level signal, a stress level signal, a skin conductance signal, a galvanic skin response signal, an inertial measurement signal, and a blood pressure signal; and/or the first metric and/or the second metric comprise any of walking speed, walking rate, stride length, heart rate, energy expenditure, and activity type.
The method of claim 1 .

1. A device for assessing the reliability of an estimated metric related to a physiological state of a user, the device comprising:
a sensor input configured to acquire one or more sensor signals related to a physiological condition of the user;
1. A processor, comprising:
estimating a first metric and a second metric independently from each other using different methods and/or algorithms based on the one or more sensor signals, the first metric being related to the second metric by a first mathematical function;
determining a first value of the first mathematical function;
a processor configured to compare the first value with a boundary of the first value; and evaluate a reliability assessment for the estimation of the first metric and/or the second metric based on the comparison; and an information output unit configured to output the evaluated reliability assessment.

1. A system for assessing the reliability of an estimated metric related to a physiological state of a user, the system comprising:
a sensor configured to measure one or more sensor signals related to a physiological condition of the user;
A system comprising: a device according to claim 11; and a user interface configured to provide a trustworthiness assessment of the device.

The system of claim 12, wherein the sensor comprises any of an accelerometer, gyroscope, heart rate sensor, respiration sensor, oxygen saturation (SpO2) sensor, movement sensor, force sensor, pressure sensor, electromyography (EMG) sensor, temperature sensor, calorie expenditure sensor, global positioning system sensor, camera, radar, speed measurement sensor, torque measurement sensor, electrocardiogram (ECG) sensor, electroencephalography (EEG) sensor, photoplethysmography (PPG) sensor, barometer, muscle tension sensor, sweat level sensor, stress level sensor, skin conductance sensor, galvanic skin response sensor, inertial measurement sensor, and blood pressure sensor.

The system described in claim 12 or 13, wherein the sensor is a remote sensor or a wearable sensor.

2. A computer program comprising program code means for causing a computer to carry out the steps of the method according to claim 1 when said computer program is run on said computer.