CN105982672A - Skin detection method and device - Google Patents
Skin detection method and device Download PDFInfo
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- CN105982672A CN105982672A CN201510095709.9A CN201510095709A CN105982672A CN 105982672 A CN105982672 A CN 105982672A CN 201510095709 A CN201510095709 A CN 201510095709A CN 105982672 A CN105982672 A CN 105982672A
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- value
- impedance
- skin
- time
- gain
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- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 230000003020 moisturizing effect Effects 0.000 claims description 22
- 230000002085 persistent effect Effects 0.000 claims description 16
- 238000005259 measurement Methods 0.000 claims description 13
- 238000002847 impedance measurement Methods 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000002688 persistence Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036559 skin health Effects 0.000 description 1
Abstract
The invention discloses a skin detection method and device. The skin detection method is carried out through the skin detection device, and includes the steps that A, skin impedance is measured after a preset time value, and an impedance measuring signal for indicating a present impedance value is generated; B, an impedance gain is obtained according to the present impedance value and the preset time value, is in positive correlation with the present impedance value, and is in negative correlation with the preset time value; C, an impedance function is generated according to the impedance gain and a time function following a time parameter to show index movement, and regulates positive correlation corresponding relationships between multiple impedance values and multiple time values; D, a time value corresponding to a critical impedance value is obtained according the critical impedance value and the impedance function to serve as a critical time value.
Description
Technical field
The present invention relates to a kind of method and device, particularly relate to one and wiped for detection
The skin detection method of the moistening effect of the skin care products with human body and skin detection device.
Background technology
Having 70% in human body is all moisture, maintains human body human body could be allowed to be good for the water content of skin
Health and radiant, therefore in the maintenance of skin, moisturizing maintenance for the most basic be also most important
Maintenance.There is moisturizing skin care products miscellaneous on the market, but everyone skin quality is different, protects
Moistening effect and persistence that foster product reach also differ, and the most therefore develop for detecting skin
One detection device of water content, when user smears skin care products, can use this detection device to detect
User smears the skin after skin care products, so that it may learn the water content of current skin.
But, though the moisturizing of skin is imitated at present after using this detection device can learn application maintenance product
Really, but but cannot learn the persistent period of moistening effect, to learn the guarantor of application maintenance product
Wet lasting effect, can only regularly use this detection device to measure the water content of skin instantly, cause
The inconvenience used.
Summary of the invention
The first object of the present invention, a skin smears a skin care products to be to provide one to detect
After the skin detection method of a moisturizing persistent period.
Skin detection method of the present invention is performed by a skin detection device, the detection device storage of this skin
Deposit a critical impedance value, and this skin detection method comprise a step (A), a step (B), one
Step (C), and a step (D).
(A) impedance and generation one instruction one that measure a skin after a preset time value hinder at present
The impedance measurement signal of anti-value.
(B) impedance gain is obtained according to this current resistance value and this preset time value, this resistance
Anti-gain and this current resistance value are positive correlation, and are negative correlation with this preset time value.
(C) follow, according to this impedance gain and one, the time function that a time parameter exponentially changes
Produce an impedance function, this multiple resistance value of impedance function specification and the positive of multiple time values
Close corresponding relation.
(D) corresponding to obtain this critical impedance value with this impedance function according to this critical impedance value
This time value, using as a crash time value.
The second object of the present invention, a skin smears a skin care products to be to provide one to detect
After a moisturizing persistent period skin detection device.
Then, this skin detection device comprises a measurement module, and a control module.
This measurement module measures the impedance of a skin after a preset time value, and produces an instruction
The impedance measurement signal of one current resistance value.
This control module stores a critical impedance value, and electrically connects this measurement module to receive this resistance
Anti-measurement signal, and obtain an impedance increasing according to this current resistance value and this preset time value
Benefit, this impedance gain and this current resistance value are positive correlation, and are negative with this preset time value
Close.
This control module is followed a time parameter further according to this impedance gain and one and is exponentially changed
Time function produce an impedance function, this multiple resistance value of impedance function specification with multiple time
Between value positive correlation corresponding relation.
This control module further according to this critical impedance value and this impedance function to obtain this critical resistance
This time value that anti-value is corresponding, using as a crash time value.
The beneficial effects of the present invention is: by finding this resistance of this skin smearing this skin care products
Anti-function, calculates this crash time value further according to this impedance function and this critical impedance value, enters
And computing obtains this moisturizing persistent period, so that it may learn that this skin care products wipes the moisturizing on this skin
Persistence.
Accompanying drawing explanation
Fig. 1 is a block chart, and an embodiment of skin of the present invention detection device is described；
Fig. 2 is a flow chart, and the skin detection method that this embodiment is implemented is described；And
Fig. 3 is a curve chart, illustrates that multiple time values of an impedance function of this embodiment are divided
The other relation with multiple resistance values.
Detailed description of the invention
Refering to Fig. 1 and Fig. 2, an embodiment of skin of the present invention detection device, it is adaptable to make
After user smears a skin care products, detect this skin care products on a skin of user, maintain moisturizing
One moisturizing persistent period, and this skin detection device comprise measurement module 1, control module
2, a display module 3, and a communication module 4.
This measurement module 1 is for measuring a resistance value of this skin.
Smearing this skin of this skin care products, the humidity of this skin can change over increasingly
Low, measured this resistance value of this skin by this measurement module 1, this resistance value the most in time and
Becoming increasing, each resistance value corresponds to a respective rh value, and described impedance
Value and described rh value are the corresponding relation of index negative correlation, such as when this phase of this skin
When being 35% to humidity, corresponding this resistance value about 500k Ω；When this of this skin is the wettest
When degree is 45%, corresponding this resistance value about 200k Ω.Therefore, from observing this resistance value
Change, so that it may speculate the change of this rh value of this skin, when this resistance value becomes larger
Time, this rh value can taper into.
This control module 2 stores a critical impedance value and electrically connects this measurement module 1.In this reality
Executing in example, this critical impedance value is set as that this skin of multiple user smears this skin care products respectively
One average impedance values of latter 8th hour, therefore, when this resistance value of this skin is that this is critical
During resistance value, the water content of this skin is the lowest.It is noted that the setting of this critical impedance value
Determine not to be limited with this average impedance values of eight hour, the aqueous of this skin arbitrary can be set to
Measure this extremely low resistance value.
This display module 3 electrically connects this control module 2, is used for showing this moisturizing persistent period.
This communication module 4 electrically connects this control module 2, for by the letter of this moisturizing persistent period
Breath transfer-out, in the present embodiment, this communication module 4 is a bluetooth module, then can will be somebody's turn to do
The information of moisturizing persistent period sends other electronic installations to.
This skin detection device implements a skin detection method, and the step of this skin detection method is such as
Lower described.
Step A: utilize this measurement module 1 to measure the impedance of this skin after a preset time value,
And produce the impedance measurement signal of an instruction one current resistance value.This preset time value be relevant to from
This skin smears this skin care products to the time difference using this measurement module 1 to measure this skin, and is somebody's turn to do
Skin smears the time point of this skin care products and is set to a time zero.In the present embodiment, this is preset
Time value is five minutes.
Step B: utilize this control module 2 to receive this impedance measurement signal, and current according to this
Resistance value and this preset time value obtain an impedance gain, this impedance gain and this current impedance
Value is positive correlation, and is negative correlation with this preset time value.The following institute of formula of this impedance gain
Show.
Wherein, Gain is this impedance gain, ΩtnFor this current resistance value, Ω0It it is an initial resistance
Anti-value, i.e. this skin smear this skin care products this average impedance values instantly, tnFor this Preset Time
Value, μ is a curvedness parameters, additionally, this starting impedance value, this curvedness parameters can be with this measurements
The change of frequency when module 1 measures this skin and change, in the present embodiment, this frequency
For 1000Hz, this starting impedance value is 265.12k Ω, and this curvedness parameters is 1.45.
Step C: utilize this control module 2 to follow a time parameter according to this impedance gain and one
The time function exponentially changed produces an impedance function, this multiple impedance of impedance function specification
Value and the positive correlation corresponding relation of multiple time values, if being converted into multiple respectively by described time value
Time logarithm with 10 as the truth of a matter, described time logarithm and the exponentially positive correlation of described resistance value
Relation, as it is shown on figure 3, the formula of this impedance function is as follows, therefore, from this impedance
Function just can learn this time value that arbitrary resistance value is corresponding.
Wherein,For this time function, t is this time value, ΩEstimationFor this resistance
Anti-value.
Step D: utilize this control module 2 according to this critical impedance value and this impedance function with
To this time value that this critical impedance value is corresponding, using as a crash time value, namely basis
This impedance function just can get this critical impedance value institute when the water content of this skin is the lowest
Corresponding this crash time value, this crash time value is relevant to from this time zero to this skin
This resistance value is to time difference during this critical impedance value.
Step E: utilize this control module 2 that this crash time value is deducted this preset time value,
To obtain a moisturizing persistent period.Need to remark additionally, this moisturizing persistent period also definable
For this crash time value is deducted this time zero, the most unrestricted at this.
Step F: utilize this control module 2 to produce a prediction knot being loaded with this moisturizing persistent period
Really signal, and send this signal that predicts the outcome to this display module 3 and/or this communication module 4,
When this display module 3 receive this predict the outcome signal time, and show this moisturizing persistent period, when
This communication module 4 receive this predict the outcome signal time, and by the information of this moisturizing persistent period to
Outer transmission.
Therefore, user is after smearing this skin care products of arbitrary brand, after this preset time value,
The impedance using this skin detection device to measure this skin produces this current resistance value, and this skin is examined
Survey device is worth to belong to this skin according to this current resistance value and this Preset Time and smears this guarantor
This impedance gain of the product of supporting, and then obtain this impedance function.To be remarked additionally, this is pre-
If time value is the biggest, this impedance gain obtained can be the most accurate, it is contemplated that convenience and accuracy
Between balance carry out sets itself, in this and indefinite.
In sum, above-described embodiment is according to impedance and formula (1), (2) being measured this skin
Computing obtains this moisturizing persistent period, and compared to this detection device existing, user more can learn
Smear the persistence of moisturizing after this skin care products, the most more convenient select oneself skin care products applicable, institute
So that the purpose of the present invention really can be reached.
Claims (10)
1. a skin detection method, it is characterised in that: performed by a skin detection device,
This skin detection device stores a critical impedance value, and this skin detection method comprises:
(A) after a preset time value, measure the impedance of a skin and produce an instruction one current impedance
The impedance measurement signal of value；
(B) obtaining an impedance gain according to this current resistance value and this preset time value, this impedance increases
Benefit and this current resistance value are positive correlation, and are negative correlation with this preset time value；
(C) follow, according to this impedance gain and one, the time function that a time parameter exponentially changes
Produce an impedance function, this multiple resistance value of impedance function specification and the positive of multiple time values
Close corresponding relation；And
(D) according to this critical impedance value and this impedance function with obtain this critical impedance value corresponding should
Time value, using as a crash time value.
Skin detection method the most according to claim 1, it is characterised in that: also wrap
Contain:
(E) this crash time value is deducted this preset time value, to obtain a moisturizing persistent period, its
In, this preset time value be relevant to from this skin smear a skin care products to measure this skin time
Between poor, this crash time value is relevant to smear this skin care products to this resistance of this skin from this skin
Anti-value is to time difference during this critical impedance value.
Skin detection method the most according to claim 2, it is characterised in that: also wrap
Contain:
(F) this moisturizing persistent period is shown, and by the information transfer-out of this moisturizing persistent period.
Skin detection method the most according to claim 1, it is characterised in that: this flesh
The humidity time to time change of skin, and each resistance value corresponds to a respective rh value,
Described resistance value and described rh value are negative correlation.
Skin detection method the most according to claim 1, it is characterised in that: in step
Suddenly, in (B), the formula of this impedance gain is
Wherein, Gain is this impedance gain, ΩtnFor this current resistance value, Ω0Be one initiate
Resistance value, tnFor this preset time value, μ is a curvedness parameters.
Skin detection method the most according to claim 5, it is characterised in that: in step
Suddenly, in (C), the formula of this impedance function is
Wherein,For this time function, t is this time value, ΩEstimationFor this impedance
Value.
7. a skin detection device, it is characterised in that: comprise:
One measurement module, measures the impedance of a skin after a preset time value and produces a finger
Show the impedance measurement signal of a current resistance value；And
One control module, stores a critical impedance value, and electrically connects this measurement module to receive
This impedance measurement signal, and obtain a resistance according to this current resistance value and this preset time value
Anti-gain, this impedance gain and this current resistance value are positive correlation, and with this preset time value
For negative correlation, it is finger that this control module follows a time parameter further according to this impedance gain and one
The time function of number change produces an impedance function, this multiple resistance value of impedance function specification
With the positive correlation corresponding relation of multiple time values, this control module is further according to this critical impedance value
This time value corresponding to obtain this critical impedance value with this impedance function, using critical as one
Time value.
Skin the most according to claim 7 detection device, it is characterised in that: this control
This crash time value is deducted this preset time value by molding block again, with obtain a moisturizing continue time
Between, wherein, this preset time value is relevant to smear a skin care products to measuring this flesh from this skin
The time difference of skin, this crash time value is relevant to smear this skin care products to this skin from this skin
This resistance value to time difference during this critical impedance value.
Skin the most according to claim 8 detection device, it is characterised in that: also wrap
Containing a display module electrically connecting this control module, this control module produces one and is loaded with this moisturizing
The signal that predicts the outcome of persistent period, and send this signal that predicts the outcome to this display module,
This display module receives this signal that predicts the outcome, and shows this moisturizing persistent period.
Skin the most according to claim 8 detection device, it is characterised in that: also wrap
Containing a communication module electrically connecting this control module, this control module produces one and is loaded with this moisturizing
The signal that predicts the outcome of persistent period, and send this signal that predicts the outcome to this communication module,
This communication module receives this signal that predicts the outcome, and by outside for the information of this moisturizing persistent period
Transmit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095709.9A CN105982672B (en) | 2015-03-04 | 2015-03-04 | Skin detection method and skin detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510095709.9A CN105982672B (en) | 2015-03-04 | 2015-03-04 | Skin detection method and skin detection device |
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| Publication Number | Publication Date |
|---|---|
| CN105982672A true CN105982672A (en) | 2016-10-05 |
| CN105982672B CN105982672B (en) | 2021-07-06 |
Family
ID=57038316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510095709.9A Active CN105982672B (en) | 2015-03-04 | 2015-03-04 | Skin detection method and skin detection device |
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| Country | Link |
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| CN (1) | CN105982672B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106580322A (en) * | 2016-12-15 | 2017-04-26 | 芯海科技（深圳）股份有限公司 | Human body impedance measuring method with high repeatability |
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| US20020052697A1 (en) * | 2000-10-27 | 2002-05-02 | Tanita Corporation | Method and apparatus for deriving body fat area |
| US20050203435A1 (en) * | 2004-03-15 | 2005-09-15 | Tanita Corporation | Skin condition estimating apparatus |
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| CN105982672B (en) | 2021-07-06 |
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Effective date of registration: 20180911 Address after: Taiwan County, Changhua, China Applicant after: Lin Fangyi Address before: Tainan City, Taiwan, China Applicant before: Kuanshi Industry Co., Ltd. |
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