METHOD AND APPARATUS FOR ESTIMATING HEART RATE BASED ON MOVEMENT INFORMATION

• US 20170127960A1
• Filed: 08/30/2016
• Published: 05/11/2017
• Est. Priority Date: 11/10/2015
• Status: Abandoned Application

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: JANG, Dae-Geun, KO, Byunghoon, BAE, SangKon
• Application Number:
  US15/251,026
• Publication Number:
  US 20170127960A1
• Time in Patent Office: Days
• CPC Class Codes: A61B 5/02416 using photoplethysmograph signals, e.g. generated by infrared radiation A61B5/14552 takes precedence
• CPC Class Codes: A61B 5/02438 with portable devices, e.g. worn by the patient
• CPC Class Codes: A61B 5/0245 by using sensing means generating electric signals, i.e. ECG signals
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal
• CPC Class Codes: A61B 5/7221 Determining signal validity, reliability or quality A61B5/7207 and A61B5/7217 take precedence

Abstract

A method of estimating a heart rate includes: measuring, using a processor, movement information based on a physical activity of a user; and estimating, using the processor, a heart rate of the user by applying the movement information to a preset regression model, wherein the regression model is based on a correlation between heart rates and movement information.

Claims

1. A method of estimating a heart rate, the method comprising:

measuring, using a processor, movement information based on a physical activity of a user; and

estimating, using the processor, a heart rate of the user by applying the movement information to a preset regression model, wherein the regression model is based on a correlation between heart rates and movement information.

2. The method of claim 1, wherein the movement information comprises at least one of a measured moving speed or a moving distance for the user.

3. The method of claim 1, wherein the regression model comprises at least one of a first regression model preset based on a correlation between average heart rates and average moving information of a plurality of users and a second regression model preset based on a correlation between heart rates and at least previous movement information of the user.

4. The method of claim 3, wherein the estimating comprises estimating the heart rate of the user by applying the movement information to one of the first regression model and the second regression model based on whether a personalized correction is determined to be performed.

5. The method of claim 1, further comprising:

generating the regression model so as to be personalized for the user based on previous movement information of the user.

6. The method of claim 5, wherein the generating comprises generating a second regression model by correcting a first regression model based on the previous movement information of the user.

7. The method of claim 1, further comprising:

measuring the heart rate of the user.

8. The method of claim 7, further comprising:

compensating for a portion of the heart rate of the user determined to be an unmeasured or mis-measured heart rate section based on the estimated heart rate.

9. The method of claim 7, further comprising:

evaluating a signal quality of the measured heart rate based on at least one of a difference between the measured heart rate and the estimated heart rate, or a ratio between the measured heart rate and the estimated heart rate.

10. The method of claim 9, further comprising:

substituting the portion of the measured heart rate with a corresponding portion of the estimated heart rate in response to the signal quality being lower than a preset reference.

11. The method of claim 9, wherein the evaluating of the signal quality further comprises detecting at least one of an invalid heart rate section or a valid heart rate section from the measured heart rate, based on at least one of the difference and the ratio.

12. The method of claim 11, wherein the detecting comprises:

comparing the difference or the ratio to a preset reference; and

determining that a heart rate section of the measured heart rate in which the difference or the ratio has a value greater than the preset reference is the invalid heart rate section, based on a result of the comparing.

13. The method of claim 1, further comprising:

analyzing physical activity information of the user based on the estimated heart rate; and

providing a feedback on a result of the analyzing.

14. The method of claim 1, further comprising:

receiving body information of the user,

wherein the estimating comprises estimating the heart rate of the user by applying the movement information and the body information of the user to the regression model.

15. The method of claim 14, wherein the body information comprises at least one of a gender, an age, a height, a weight, a body mass index (BMI), or a stable-state heart rate.

16. A non-transitory computer readable medium, comprising programmed instructions configured to control one or more processor devices to implement the method of claim 1.

17. An apparatus for estimating a heart rate, the apparatus comprising:

a first measurer configured to measure movement information of a user based on a physical activity of the user; and

a processor configured to estimate a heart rate of the user by applying the movement information to a preset regression model,

wherein the regression model is based on a correlation between heart rates and movement information.

18. The apparatus of claim 17, further comprising:

a second measurer configured to measure the heart rate of the user.

19. The apparatus of claim 18, wherein, the processor is configured to compensate for the heart rate of the user based on the estimated heart rate, in response to a portion of the heart rate of the user being determined to be unmeasured or measured incorrectly.

20. The apparatus of claim 18, wherein the processor is configured to:

evaluate a signal quality of the measured heart rate based on at least one of a difference between the measured heart rate and the estimated heart rate, or a ratio between the measured heart rate and the estimated heart rate; and

substitute the portion of measured heart rate with a corresponding portion of the estimated heart rate in response to the signal quality being lower than a preset reference.