An article, method and system for detecting heartbeat or electrode contact

An electrode contact and electrode technology, applied in the direction of the electrode, can solve the problem of not considering the effect and achieve the effect of reducing body motion interference

Active Publication Date: 2016-06-29
杨章民
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method of setting electrodes does not take into account the effect of friction between the electrodes and the cloth or the human body, and it is not a three-dimensional design, so it can only use a tight-fitting design, otherwise as long as the user moves around, the electrodes will be in contact with relative movement of the skin

Method used

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  • An article, method and system for detecting heartbeat or electrode contact
  • An article, method and system for detecting heartbeat or electrode contact
  • An article, method and system for detecting heartbeat or electrode contact

Examples

Experimental program
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Effect test

no. 1 Embodiment

[0134] The daywear referred to in the present invention means clothes worn for daytime activities. As shown in Fig. 1(a), Fig. 1(a) is a schematic diagram of the structure of electrodes, control box and transmission line and the positional relationship of the equipotential line of the ECG signal in the preferred embodiment of the sunclothes. The framework of the present invention is to arrange two electrodes 40 respectively on the left and right underarms of the Japanese clothing. Among them, the electrode 40 of the left armpit is set in the region of the highest potential (+1.4); but in order to avoid respiratory interference and avoid the position where the female user just wears underwear, the other electrode 40 is not set at the lowest potential (+1.4). -1), but in the right axillary position where the potential is -0.3. In addition to the above two electrodes, the present invention can optionally add a third electrode as an electrode for negative feedback current input t...

no. 2 Embodiment

[0218] The second embodiment estimates human motion from noise

[0219] When the body moves, the relative displacement between the electrode and the skin will inevitably occur, and the ions in the body will also move accordingly. At this time, the ECG signal will be interfered and contain quite a lot of noise. Conversely, noise is an indicator of body movement. This embodiment proposes five methods for estimating human motion from noise.

[0220] The first method: Estimate human motion from the number of times noise is misjudged as R wave

[0221] In this embodiment, when it is necessary to analyze the noise to estimate the human body movement, if the noise is not suppressed by the filtering firmware, many noises will be misjudged as R waves. Because the interval of noise is much shorter than the interval of normal heartbeat, and under normal circumstances, it is impossible for ordinary people to jump from 72 heartbeats under normal activities (R wave interval is 0.833 secon...

no. 3 Embodiment

[0233] Embodiment 3. Capacitively coupled electrodes

[0234] The electrodes mentioned above are not like the physiological electrodes commonly used in hospitals, which have gels containing water and potassium chloride to increase conductivity, so they are called dry electrodes.

[0235] When the temperature and humidity are very low or the user's own skin is very dry, the conductance between the dry electrode and the skin will become very low, which is not conducive to the acquisition of ECG signals, leaving only capacitance. In this case, a capacitively coupled electrode and circuit can be used, that is, there is no direct current conductance between the electrode and the skin, but the electrocardiographic signal is transmitted by capacitive coupling. However, for physiological monitoring clothing, because it must bear the force of washing, the insulating layer on the capacitive coupling electrode may be damaged due to washing, so that it is no longer a perfect capacitance b...

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PUM

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Abstract

Disclosed are an object, method, and system for detecting heartbeat or whether or not electrodes are in proper contact. The system is multiple textile electrodes that are arranged on a textile product, where an isopotential surface map of an electrocardiogram (ECG) is used, and where interference caused by movements of a human body is considered, and is arranged as a structure of separated electrodes. The system is capable of detecting heartbeat on the basis of the positions and areas of the electrodes, and of the arrangement of conductive cables, and is capable of selecting, according to changes in the state of the environment, dry cell powered- or capacitively coupled-electrodes to acquire an electrocardiography signal. The system is capable of detecting whether or not the electrodes are in proper contact with the human body by measuring noise, surface resistance, and muscular resistance, and is capable of inferring the posture and movements of the human body on the basis of the ECG signal and noise.

Description

technical field [0001] The present invention relates to an article, method and system for detecting heartbeat or electrode contact, in particular to a fabric worn on the body that can capture electrocardiographic signals, electromyographic signals or electroencephalographic signals , Articles, methods and systems for simultaneously detecting gestures, behavioral patterns, or mental states. Background technique [0002] Whether it is a sick person in a hospital bed or a healthy person going about their daily activities, professional or amateur athletes, and those in high-risk jobs such as firefighters, all need continuous, untethered, and untethered Physiological monitoring that interferes with normal activities, in order to know their physiological status so that appropriate measures can be taken if necessary. For example, first aid is given to patients with myocardial infarction. It is one of the common solutions to realize the physiological monitoring function on the fab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61N1/04
Inventor 杨章民
Owner 杨章民
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