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Biometric information processing device and biometric information processing method

An information processing device and biological technology, which can be used in medical science, sensors, diagnostic recording/measurement, etc., and can solve problems such as residues

Active Publication Date: 2016-01-27
SEIKO EPSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in Patent Document 2, in a series of cases in which the subject's exercise condition changes from the beginning of the strenuous exercise to the subsequent exercise, the estimated pulse component extracted by the adaptive filter locally remains too much noise component

Method used

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  • Biometric information processing device and biometric information processing method
  • Biometric information processing device and biometric information processing method
  • Biometric information processing device and biometric information processing method

Examples

Experimental program
Comparison scheme
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Embodiment approach 1

[0044] (Appearance configuration of biological information processing device)

[0045] figure 1 It is a front view of the pulse meter of this embodiment. The pulsometer 1 as a biological information processing device is equipped with a wristband 2, and a watch band 2 is arranged on the case 3 for displaying the time, the operating state of the pulsometer 1, and various biological information (pulse rate, exercise intensity, etc.) Calorie consumption etc.) display panel 4.

[0046] In addition, operation buttons 5 for operating the pulse meter 1 are arranged on the periphery (side surface) of the housing 3 . The pulsometer 1 operates using, for example, a built-in secondary battery as a power source. A charging terminal 6 connected to an external charger and used to charge a built-in secondary battery is provided on a side surface of the housing 3 .

[0047] figure 2 (a) is a rear view of the pulse meter 1 and shows an external view of the pulse meter 1 viewed from the ba...

Embodiment approach 2

[0177] Next, with Figure 12 The second embodiment will be described centering on the other drawings as appropriate.

[0178] Figure 12 It is a flowchart showing the flow of body motion noise component removal processing in the second embodiment. This embodiment and the flowchart showing the body motion noise component removal process of Embodiment 1 ( Figure 10 ) part is different. In addition, the following flow corresponds to a biological information processing method, and is executed by the control unit 200 by controlling each part including the storage unit 260 based on the control program 261 stored in the storage unit 260 .

[0179] In the first embodiment, the correlation between the body motion signal X and the estimated pulse component EA or estimated pulse component EB is calculated in steps S60 and S90 as the correlation coefficient calculation process. In step S260 and step S290 , the point of calculating the correlation coefficient between the estimated bod...

Deformed example 1

[0187] In the above-described embodiment, the body motion signal detection unit is configured to include the acceleration sensor 20, but it is not limited to this configuration, and may include a configuration in which a contact pressure sensor is provided and the detected contact pressure displacement signal is included in the body motion signal. . Specifically, the contact pressure sensor is a sensor that is disposed adjacent to the arm contact surface side of the pulse sensor 10 when the pulse meter 1 is worn on the arm, and measures the displacement amount of physical pressure generated between the pulse sensor 10 and the arm. . The movement of clenching and releasing the hand, the deviation of the arm mounting state of the pulsometer 1 , etc. are mainly detected as the contact pressure displacement signal.

[0188] By performing the extraction process of the estimated pulse component based on the contact pressure displacement signal, it is possible to attenuate body moti...

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PUM

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Abstract

Provided is a biometric information processing device which attenuates body movement noise that changes according to the various movement status of a subject and extracts a pulse wave with less noise. This biometric information processing device comprises multiple filters which have different filter properties and which detect a biosignal that includes a pulse wave component and a body movement noise component, detect a body movement signal that correlates to the body movement noise component and separate the pulse wave component and body movement noise component in the biosignal on the basis of the body movement signal, and the device calculates, for each filter, a coefficient of correlation between the body movement signal and at least one of the pulse wave component and body movement noise component, and on the basis of the coefficient of correlation, determines the pulse wave component separated by any one of the filters as a pulse wave signal. According to this biometric information processing device, the pulse wave component in which a noise component is sufficiently attenuated can be selected from the pulse wave components extracted by the multiple filters.

Description

technical field [0001] The present invention relates to a biological information processing device and a biological information processing method for measuring the pulse rate of a subject. Background technique [0002] Conventionally, a pulsometer is known that is worn on an arm or the like of a test subject and measures the pulse rate during exercise such as walking or running. The pulsometer is equipped with a pulse sensor, and detects a change in the blood flow of the subject to obtain a biological signal. A signal component (pulse component) corresponding to the pulse is extracted from the biological signal, and the pulse rate is obtained. In the biological signal, in addition to the pulse component, there is also a body motion component caused by the body motion of the subject during exercise. Therefore, the pulsometer also has an acceleration sensor for detecting the body motion signal of the subject. The body signal is used to estimate the body motion component and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B5/0245A61B5/11
CPCA61B5/721A61B5/02416A61B5/02438A61B5/681A61B5/6824A61B5/7207A61B5/7225A61B5/7246
Inventor 高桥有亮
Owner SEIKO EPSON CORP