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Skin conductivity measuring method and device and wearable equipment

A skin conductivity and measurement method technology, applied in the field of wearable devices, can solve the problems of high equipment cost, incomplete conductance data range measurement, and the inability of a single ADC chip to completely cover the measurement signal, etc.

Active Publication Date: 2021-09-10
GOERTEK INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large change in the collection voltage range, a single ADC chip cannot completely cover the range of the measurement signal, and there is a problem that the range measurement of some conductance data is not comprehensive
At the same time, if an ADC chip with high measurement accuracy or an ADC chip with a wide measurement range is used to collect voltage changes, the cost of the equipment will be high

Method used

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  • Skin conductivity measuring method and device and wearable equipment
  • Skin conductivity measuring method and device and wearable equipment
  • Skin conductivity measuring method and device and wearable equipment

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Embodiment Construction

[0027] Exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that the present application can be more thoroughly understood, and the scope of the present application can be fully conveyed to those skilled in the art.

[0028] figure 1 A schematic flowchart of a method for measuring skin conductivity according to an embodiment of the present application is shown. Such as figure 1 As shown, the method includes:

[0029] In step S110, the voltage signal Vp at both ends of the skin to be tested is amplified by the first programmable gain amplifier, and the first ADC chip is used to sample the voltage signal Vout output by the fir...

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Abstract

The invention discloses a skin conductivity measuring method and device and wearable equipment. The method comprises the following steps: performing gain value amplification on a voltage signal Vp at two ends of a to-be-detected skin and a conversion voltage of a current signal Ip flowing through two ends of the to-be-detected skin respectively through a programmable gain amplifier, and performing synchronous sampling by using a corresponding ADC chip to obtain a first sampling value and a second sampling value respectively, if the first sampling value or / and the second sampling value are / is not in the preset sampling effective value range of the corresponding ADC chip, enabling the first sampling value and the second sampling value to be in the preset sampling effective value range of the corresponding ADC chip by correspondingly switching the measuring range of the programmable gain amplifier; and calculating the skin conductivity according to the ratio of the sampling value of the current signal Ip to the sampling value of the voltage signal Vp, so the full-scale measurement of the skin conductivity is realized, and the influence of the data acquisition range and precision of the ADC chip is avoided.

Description

technical field [0001] The present application relates to the technical field of wearable devices, in particular to a skin conductivity measurement method, device and wearable device. Background technique [0002] When the sympathetic nervous system of the human body receives external stimuli, it will activate the human sweat gland nerves and induce sweat secretion. By placing electrodes on the surface of the skin through an external device, the conductance of the skin can be calculated, and then the changes in the stimulation of the human body can be determined. At present, there are wearable devices that can observe the human body's stress, anxiety, fear, physical exertion, and changes in attention by measuring the Skin Conductance Level (SCL) and the Skin Conductance Response (SCR). Human physiological indicators when relevant external stimuli. [0003] Due to factors such as human body constitution, the skin conductance of the human body changes greatly. At present, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03M1/12A61B5/0531
CPCH03M1/1205A61B5/0531
Inventor 崔振科姜滨迟小羽
Owner GOERTEK INC
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