CN103251406B - Method, device and mobile terminal for detecting water content of skin - Google Patents
Method, device and mobile terminal for detecting water content of skin Download PDFInfo
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- CN103251406B CN103251406B CN201310174869.3A CN201310174869A CN103251406B CN 103251406 B CN103251406 B CN 103251406B CN 201310174869 A CN201310174869 A CN 201310174869A CN 103251406 B CN103251406 B CN 103251406B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 92
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008878 coupling Effects 0.000 claims abstract description 73
- 238000010168 coupling process Methods 0.000 claims abstract description 73
- 238000005859 coupling reaction Methods 0.000 claims abstract description 73
- 238000001514 detection method Methods 0.000 claims description 81
- 238000013499 data model Methods 0.000 claims description 68
- 230000000474 nursing effect Effects 0.000 claims description 26
- 238000011002 quantification Methods 0.000 claims description 16
- 238000013507 mapping Methods 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 10
- 239000004020 conductor Substances 0.000 description 9
- 230000005684 electric field Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000036559 skin health Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a method, a device and a mobile terminal for detecting the water content of skin. The method comprises the following steps that touch control signals of a capacitive touch screen being contacted with the skin are detected; a coupling capacitance value and the contacting area between the skin and the capacitive touch screen are obtained according to the touch control signals; the dielectric constant of the skin is calculated according to the coupling capacitance value and the contacting area; the water content of the skin is calculated according to the dielectric constant; the water content of the skin is displayed, and skin care advice is provided. According to the method, the device and the mobile terminal for detecting the water content of the skin, the water content of the skin is detected through the mobile terminal provided with the capacitive touch screen, the quantity of articles carried by a user is reduced, and the professional and instructional skin care advice can be provided.
Description
Technical field
The present invention relates to communication technical field, specific design moisture of skin detection technique field, particularly relate to a kind of method of detection of skin water content, device and mobile terminal.
Background technology
Moisture content of skin is determined by several factors, comprises internal factor and external factor.Internal factor mainly comprises the biochemical change etc. of age and skin.External factor more complicated, comprises the cosmetics etc. of environment, temperature, humidity, air regime and use.Skin mainly relies on horny layer to keep moisture, and the cuticular moisture content water content of skin, horny layer is the outermost layer of skin.Only have when cuticular water content higher than 10% time, skin is only healthy, therefore moisture content of skin number whether decide skin health, therefore detection of skin water content can evaluating skin health status and suitable nursing is carried out to skin.
There is method and the portable equipment of a lot of detection of skin moisture in prior art, these equipment mainly touch skin by conductive electrode, and the change detecting the signal of telecommunication judges the percentage ratio of moisture.The method that these method and apparatus are commonly used be the capacitance of detection of skin to measure the water content of skin, cardinal principle is according to parallel plate capacitor principle:
Namely parallel plate capacitor C is proportional to relative area S between parallel-plate, is proportional to DIELECTRIC CONSTANT ε, is inversely proportional to relative distance d between parallel-plate.And then the water content of skin is measured according to water and the difference of the dielectric constant of other materials.Under normal circumstances, the dielectric constant of water is 81, and in skin, the dielectric constant of other material is less than 7 mostly, and like this, dielectric constant can change along with the change of skin moisture content.Thus when area S and distance d determines constant, electric capacity C can change along with the change of skin moisture content.Utilize these principles just can measure the water content of skin.
But the deficiency of this mode is the quantity adding user's belongings, testing result too digitized simultaneously, can not provide the skin protection suggestion of the directiveness of specialty to user.
Summary of the invention
In view of this, the invention provides a kind of method of detection of skin water content, device and mobile terminal, solve the technical problem that above background technology part is mentioned.
A method for detection of skin water content, described method comprises:
Detect the touching signals of described contact skin capacitance touch screen;
The contact area of coupling capacitance and described skin and described capacitance touch screen is obtained according to described touching signals;
The dielectric constant of described skin is calculated according to coupling capacitance and contact area;
Moisture content of skin is calculated according to described dielectric constant;
Show described moisture content of skin, and provide skin nursing to advise.
Further, also comprised before the touching signals of the described contact skin capacitance touch screen of described detection:
Set up the data model of coupling capacitance and moisture content of skin.
Further, the described data model setting up coupling capacitance and moisture content of skin comprises:
The touching signals of detection of skin hand capacity touch screen, the water content of described skin is known;
The contact area of coupling capacitance and described skin and described capacitance touch screen is obtained according to described touching signals;
The dielectric constant of described skin is calculated according to coupling capacitance and contact area;
Described dielectric constant is carried out quantification and obtains quantized data;
Record the quantized data of dielectric constant corresponding to the water content of described skin;
The sample data that the water content of adding up skin forms with corresponding quantized data;
According to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
Further, describedly calculate moisture content of skin according to described dielectric constant and comprise:
Described dielectric constant is carried out quantification and obtains quantized data;
According to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
Accordingly, the invention allows for a kind of device of detection of skin water content, described device comprises:
Detection module, for detecting the touching signals of described contact skin capacitance touch screen;
Acquisition module, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals;
Dielectric constant computing module, for calculating the dielectric constant of described skin according to coupling capacitance and contact area;
Moisture content of skin computing module, for calculating moisture content of skin according to described dielectric constant;
Display module, for showing moisture content of skin, and provides skin nursing to advise.
Further, described device also comprises:
Data model sets up module, for setting up the data model of coupling capacitance and moisture content of skin.
Further, described data model is set up module and is comprised:
Detecting unit, for the touching signals of detection of skin hand capacity touch screen, the water content of described skin is known;
Acquiring unit, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals;
Computing unit, for calculating the dielectric constant of described skin according to coupling capacitance and contact area;
Quantifying unit, obtains quantized data for described dielectric constant is carried out quantification;
Record cell, for recording the quantized data of dielectric constant corresponding to described moisture content of skin;
Statistic unit, for adding up the sample data that moisture content of skin forms with corresponding quantized data;
Data model sets up unit, and for according to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
Further, described moisture content of skin computing module comprises:
Quantifying unit, obtains quantized data for described dielectric constant is carried out quantification;
Search unit, for according to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
Accordingly, the invention allows for a kind of mobile terminal, described mobile terminal comprises the device of capacitance touch screen and detection of skin water content.
The method of detection of skin water content that the present invention proposes, device and mobile terminal, by having the water content of the mobile terminal detection of skin of capacitance touch screen, decrease the quantity of user's belongings, and can provide the skin protection suggestion of the directiveness of specialty.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method for detection of skin water content in first embodiment of the invention;
Fig. 2 a is the flow chart of the method for detection of skin water content in second embodiment of the invention;
Fig. 2 b is the flow chart setting up the step of the data model of coupling capacitance and moisture content of skin in the method for detection of skin water content in second embodiment of the invention;
Fig. 2 c is the flow chart of the step calculating moisture content of skin in the method for detection of skin water content in second embodiment of the invention according to dielectric constant;
Fig. 3 is the schematic diagram of the device of detection of skin water content in third embodiment of the invention;
Fig. 4 a is the schematic diagram of the device of detection of skin water content in fourth embodiment of the invention;
Fig. 4 b is the schematic diagram setting up data model module in the device of detection of skin water content in fourth embodiment of the invention;
Fig. 4 c is the schematic diagram of moisture content of skin computing module in the device of detection of skin water content in fourth embodiment of the invention;
Fig. 5 is the structural representation of the mobile terminal in fifth embodiment of the invention;
Fig. 6 is the structural representation of the mobile terminal in sixth embodiment of the invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the present invention, but not limitation of the invention.It also should be noted that, for convenience of description, illustrate only part related to the present invention in accompanying drawing but not full content.
Figure 1 illustrates the first embodiment of the present invention.
Fig. 1 is the realization flow 100 of the method for detection of skin water content in first embodiment of the invention, and details are as follows for this realization flow 100:
In a step 101, the touching signals of detection of skin hand capacity touch screen.
In a first embodiment, capacitance touch screen is all coated with long and narrow electrode on touch screen four limit, a low-voltage AC electric field is formed in electric conductor, when contact skin capacitance touch screen, due to human body electric field, a coupling capacitance can be formed between skin and conductor layer, therefore just can touching signals be detected by the change of Detection capacitance value.Here the accurate contact of touching signals can be detected, the approximate location of touching signals only need be detected.That is, during the water content of detection of skin, the position of contact skin touch screen is not fixing, as long as contact skin can detect to capacitance touch screen.
In a step 102, the contact area of coupling capacitance and skin and capacitance touch screen is obtained according to touching signals.
In a first embodiment, in a step 101 by the change-detection touching signals of Detection capacitance value, and the coupling capacitance between skin and conductor layer is obtained.
In the present embodiment, after touching signals being detected by step 101, write down the approximate location of touching signals at touch screen, the initial data of touching signals is obtained by processor, remove the interference of initial data, remove the pressure spot of the data measuring and calculating touching signals after interference according to initial data, set up the touch area of touching signals, the area calculating this region according to this touch area is the contact area of skin and capacitance touch screen.
In step 103, the dielectric constant of skin is calculated according to coupling capacitance and contact area.
In a first embodiment, the coupling capacitance of touching signals and the contact area of skin and capacitance touch screen is obtained by step 102, the coupling capacitance that skin is formed when touching capacitance touch screen can regard parallel plate capacitor as, and the contact area of skin and touch screen is the area of formed parallel plate capacitor.The capacitance of parallel plate capacitor and the available following formula of the relation of area calculate
Wherein, ε represents dielectric constant, and S represents the relative area between parallel-plate, and k represents dielectric constant, and d represents the relative distance between parallel-plate.For the touching signals of touch screen, capacitance and area are obtained by step 102, and k is constant, are certain for certain capacitance touch screen d, therefore just can be obtained the dielectric constant of described skin by the relational expression of capacitance and area.
At step 104, moisture content of skin is calculated according to dielectric constant.
In a first embodiment, the dielectric constant of described skin is obtained by step 103.Under normal circumstances, the dielectric constant of water is 81, and in skin, the dielectric constant of other material is less than 7 mostly, and like this, dielectric constant can change along with the change of moisture content in skin.Can suppose that the water content of skin is a unknown quantity x, then in skin, the content of other materials is 1-x, and the dielectric constant of other materials is assumed to be 6, then dielectric constant=the 81*x+6*(1-x of skin), the water content x of skin is calculated by this equation.
In step 105, display moisture content of skin, and provide skin nursing to advise.
In a first embodiment, moisture content of skin step 104 obtained carries out numerical monitor on screen, and this step provides skin nursing to advise according to moisture content of skin simultaneously.There is provided skin nursing to advise according to moisture content of skin, specifically, skin nursing can be provided to advise according to the water content of skin by the skin nursing software combining specialty, also can provide corresponding skin nursing suggestion for the water content of skin.
In a preferred implementation of the present embodiment, also comprised before the touching signals of described detection of skin hand capacity touch screen: the data model setting up coupling capacitance and moisture content of skin.The data model setting up coupling capacitance and moisture content of skin specifically comprises: the touching signals of detection of skin hand capacity touch screen, and the water content of described skin is known; The contact area of coupling capacitance and described skin and described capacitance touch screen is obtained according to described touching signals; The dielectric constant of described skin is calculated according to coupling capacitance and contact area; Described dielectric constant is carried out quantification and obtains quantized data; Record the quantized data of dielectric constant corresponding to described moisture content of skin; The sample data that statistics moisture content of skin forms with corresponding quantized data; According to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.Preferably, described according to dielectric constant calculate moisture content of skin specifically comprise: described dielectric constant is carried out quantification and obtains quantized data; According to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
The present embodiment calculates coupling capacitance by contact skin capacitance touch screen, and then obtain the dielectric constant of skin, because in moisture and skin, the dielectric constant of other materials is known, thus the water content of skin can be calculated, and provide skin protection to advise according to the water content of skin.A lot of mobile terminal all adopts capacitance touch screen, just can the water content of detection of skin as long as user carries the mobile terminal adopting capacitance touch screen, can the quantity of adding users belongings, and the skin protection suggestion of the directiveness of specialty can be provided to user.
Fig. 2 a shows the second embodiment of the present invention.
Fig. 2 a is the realization flow 200 of the method for detection of skin water content in second embodiment of the invention, and details are as follows for this realization flow 200:
In step 201, the data model of coupling capacitance and moisture content of skin is set up.
In a second embodiment, the data model of coupling capacitance and moisture content of skin is first set up.Fig. 2 b shows in the present embodiment the particular flow sheet setting up data model.As can be seen from Fig. 2 b, the data model setting up coupling capacitance and moisture content of skin specifically comprises following sub-step:
Sub-step 2011, the touching signals of detection of skin hand capacity touch screen, the water content of described skin is known;
Sub-step 2012, obtains the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals;
Sub-step 2013, calculates the dielectric constant of described skin according to coupling capacitance and contact area;
Sub-step 2014, carries out quantification by described dielectric constant and obtains quantized data;
Sub-step 2015, records the quantized data of dielectric constant corresponding to described moisture content of skin;
Sub-step 2016, the sample data that statistics moisture content of skin forms with corresponding quantized data;
Sub-step 2017, according to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
In step 202., the touching signals of detection of skin hand capacity touch screen.
In a second embodiment, capacitance touch screen is all coated with long and narrow electrode on touch screen four limit, a low-voltage AC electric field is formed in electric conductor, when contact skin capacitance touch screen, due to human body electric field, a coupling capacitance can be formed between skin and conductor layer, therefore just can touching signals be detected by the change of Detection capacitance value.Here the accurate contact of touching signals can be detected, the approximate location of touching signals only need be detected.That is, during the water content of detection of skin, the position of contact skin touch screen is not fixing, as long as contact skin can detect to capacitance touch screen.
In step 203, the contact area of coupling capacitance and skin and capacitance touch screen is obtained according to touching signals.
In a second embodiment, in step 202. by the change-detection touching signals of Detection capacitance value, and the coupling capacitance between skin and conductor layer is obtained.
In the present embodiment, after touching signals being detected by step 202, write down the approximate location of touching signals at touch screen, the initial data of touching signals is obtained by processor, remove the interference of initial data, remove the pressure spot of the data measuring and calculating touching signals after interference according to initial data, set up the touch area of touching signals, the area calculating this region according to this touch area is the contact area of skin and capacitance touch screen.
In step 204, the dielectric constant of skin is calculated according to coupling capacitance and contact area.
In a second embodiment, the coupling capacitance of touching signals and the contact area of skin and capacitance touch screen is obtained by step 203, the coupling capacitance that skin is formed when touching capacitance touch screen can regard parallel plate capacitor as, and the contact area of skin and touch screen is the area of formed parallel plate capacitor.The capacitance of parallel plate capacitor and the available following formula of the relation of area calculate
Wherein, ε represents dielectric constant, and S represents the relative area between parallel-plate, and k represents dielectric constant, and d represents the relative distance between parallel-plate.For the touching signals of touch screen, capacitance and area are obtained by step 203, and k is constant, are certain for certain capacitance touch screen d, therefore just can be obtained the dielectric constant of described skin by the relational expression of capacitance and area.
In step 205, moisture content of skin is calculated according to dielectric constant.
In a second embodiment, the dielectric constant of described skin is obtained by step 204.Fig. 2 c shows the flow chart calculating moisture content of skin according to dielectric constant.As can be seen from Fig. 2 c, calculate moisture content of skin according to dielectric constant and specifically comprise following sub-step:
Sub-step 2051, carries out quantification by dielectric constant and obtains quantized data;
Sub-step 2052, according to described quantized data, searches the moisture content of skin corresponding with described quantized data in data model.
In step 206, display moisture content of skin, and provide skin nursing to advise.
In a second embodiment, moisture content of skin step 205 obtained carries out numerical monitor on screen, and this step provides skin nursing to advise according to moisture content of skin simultaneously.There is provided skin nursing to advise according to moisture content of skin, specifically, skin nursing can be provided to advise according to the water content of skin by the skin nursing software combining specialty, also can provide corresponding skin nursing suggestion for the water content of skin.
First the present embodiment by setting up the data model of coupling capacitance and moisture content of skin, contact skin capacitance touch screen calculates coupling capacitance, and then obtain dielectric constant and the quantized data thereof of skin, by searching the water content that the moisture content of skin corresponding with described quantized data obtains skin to be measured in described data model, and skin protection is provided to advise according to the water content of skin.A lot of mobile terminal all adopts capacitance touch screen, just can the water content of detection of skin as long as user carries the mobile terminal adopting capacitance touch screen, can the quantity of adding users belongings, and the skin protection suggestion of the directiveness of specialty can be provided to user.
Fig. 3 shows the third embodiment of the present invention.
Fig. 3 is the structural representation of the device of a kind of detection of skin water content of third embodiment of the invention.As shown in Figure 3, the device 300 of the detection of skin water content described in the present embodiment comprises: detection module 301, acquisition module 302, dielectric constant computing module 303, moisture content of skin computing module 304, display module 305.
Wherein, detection module 301, for detecting the touching signals of described contact skin capacitance touch screen.Capacitance touch screen is all coated with long and narrow electrode on touch screen four limit, a low-voltage AC electric field is formed in electric conductor, when contact skin capacitance touch screen, due to human body electric field, a coupling capacitance can be formed between skin and conductor layer, therefore just can touching signals be detected by the change of Detection capacitance value.Here the accurate contact of touching signals can be detected, the approximate location of touching signals only need be detected.That is, during the water content of detection of skin, the position of contact skin touch screen is not fixing, as long as contact skin can detect to capacitance touch screen.
Acquisition module 302, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals.Touching signals is detected by detection module 301, obtain the coupling capacitance between skin and conductor layer, and write down the approximate location of touching signals at touch screen, the initial data of touching signals is obtained by processor, remove the interference of initial data, remove the pressure spot of the data measuring and calculating touching signals after interference according to initial data, set up the touch area of touching signals, the area calculating this region according to this touch area is the contact area of skin and capacitance touch screen.
Dielectric constant computing module 303, for calculating the dielectric constant of described skin according to coupling capacitance and contact area.The coupling capacitance of touching signals and the contact area of skin and capacitance touch screen is obtained by acquisition module 302, the coupling capacitance that skin is formed when touching capacitance touch screen can regard parallel plate capacitor as, and the contact area of skin and touch screen is the area of formed parallel plate capacitor.The capacitance of parallel plate capacitor and the available following formula of the relation of area calculate
Wherein, ε represents dielectric constant, and S represents the relative area between parallel-plate, and k represents dielectric constant, and d represents the relative distance between parallel-plate.For the touching signals of touch screen, capacitance and area are obtained by acquisition module 302, and k is constant, is certain for certain capacitance touch screen d, therefore just can be obtained the dielectric constant of described skin by the relational expression of capacitance and area.
Moisture content of skin computing module 304, for calculating moisture content of skin according to described dielectric constant.The dielectric constant of described skin is obtained by dielectric constant computing module 303.Under normal circumstances, the dielectric constant of water is 81, and in skin, the dielectric constant of other material is less than 7 mostly, and like this, dielectric constant can change along with the change of moisture content in skin.Can suppose that the water content of skin is a unknown quantity x, then in skin, the content of other materials is 1-x, and the dielectric constant of other materials is assumed to be 6, then dielectric constant=the 81*x+6*(1-x of skin), the water content x of skin is calculated by this equation.
Display module 305, for showing moisture content of skin, and provides skin nursing to advise.The moisture content of skin obtained by moisture content of skin computing module 304 carries out numerical monitor on screen, provides skin nursing to advise according to moisture content of skin simultaneously.There is provided skin nursing to advise according to moisture content of skin, specifically, skin nursing can be provided to advise according to the water content of skin by the skin nursing software combining specialty, also can provide corresponding skin nursing suggestion for the water content of skin.
In a preferred implementation of the present embodiment, also comprise: data model sets up module.Described data model sets up module, for setting up the data model of coupling capacitance and moisture content of skin.Described data model is set up module and is comprised: detecting unit, and for the touching signals of detection of skin hand capacity touch screen, the water content of described skin is known; Acquiring unit, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals; Computing unit, for calculating the dielectric constant of described skin according to coupling capacitance and contact area; Quantifying unit, obtains quantized data for described dielectric constant is carried out quantification; Record cell, for recording the quantized data of dielectric constant corresponding to described moisture content of skin; Statistic unit, for adding up the sample data that moisture content of skin forms with corresponding quantized data; Data model sets up unit, and for according to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.Preferably, described moisture content of skin computing module 304 comprises: quantifying unit, obtains quantized data for described dielectric constant is carried out quantification; Search unit, for according to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
The present embodiment detects the touching signals of contact skin capacitance touch screen by detection module 301, the coupling capacitance of described touching signals and the contact area of skin and touch screen is obtained by acquisition module 302, and then calculate the dielectric constant of skin, because in moisture and skin, the dielectric constant of other materials is known, thus the water content of skin can be calculated, and skin protection is provided to advise according to the water content of skin.A lot of mobile terminal all adopts capacitance touch screen, just can the water content of detection of skin as long as user carries the mobile terminal adopting capacitance touch screen, can the quantity of adding users belongings, and the skin protection suggestion of the directiveness of specialty can be provided to user.
Fig. 4 a shows the fourth embodiment of the present invention.
Fig. 4 a is the structural representation of the device of a kind of detection of skin water content of fourth embodiment of the invention.As shown in fig. 4 a, the device 400 of the detection of skin water content described in the present embodiment comprises: data model sets up module 401, detection module 402, acquisition module 403, dielectric constant computing module 404, moisture content of skin computing module 405, display module 406.
Wherein, data model sets up module 401, for setting up the data model of coupling capacitance and moisture content of skin.Fig. 4 b shows the structural representation that data model sets up the submodule that module 401 comprises.As can be seen from Fig. 4 b, data model is set up module 401 and is comprised: detecting unit 4011, and for the touching signals of detection of skin hand capacity touch screen, the water content of described skin is known; Acquiring unit 4012, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals; Computing unit 4013, for calculating the dielectric constant of described skin according to coupling capacitance and contact area; Quantifying unit 4014, obtains quantized data for described dielectric constant is carried out quantification; Record cell 4015, for recording the quantized data of dielectric constant corresponding to described moisture content of skin; Statistic unit 4016, for adding up the sample data that moisture content of skin forms with corresponding quantized data; Data model sets up unit 4017, and for according to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
Detection module 402, for detecting the touching signals of described contact skin capacitance touch screen.Specific implementation, with the realization of the detection module in the 3rd embodiment, repeats no more here.
Acquisition module 403, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals.Specific implementation, with the realization of the acquisition module in the 3rd embodiment, repeats no more here.
Dielectric constant computing module 404, for calculating the dielectric constant of described skin according to coupling capacitance and contact area.Specific implementation, with the realization of the first computing module in the 3rd embodiment, repeats no more here.
Moisture content of skin computing module 405, for calculating moisture content of skin according to described dielectric constant.The dielectric constant of described skin has been calculated by the first computing module 404.Fig. 4 c shows the structural representation of the submodule that the second computing module 405 specifically comprises.As can be seen from Fig. 4 c, the second computing module 405 specifically comprises: quantifying unit 4051, obtains quantized data for described dielectric constant is carried out quantification; Search unit 4052, for according to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data, described data model represents the mapping table of quantized data and moisture content of skin.
Display module 406, for showing moisture content of skin, and provides skin nursing to advise.Specific implementation, with the realization of the display module in the 3rd embodiment, repeats no more here.
The present embodiment sets up by data model the data model that module 401 sets up coupling capacitance and moisture content of skin, detection module 402 detects the touching signals of contact skin capacitance touch screen, the coupling capacitance of described touching signals and the contact area of skin and touch screen is obtained by acquisition module 403, and then obtain dielectric constant and the quantized data thereof of skin, by searching the water content that the moisture content of skin corresponding with described quantized data obtains skin to be measured in described data model, and skin protection is provided to advise according to the water content of skin.A lot of mobile terminal all adopts capacitance touch screen, just can the water content of detection of skin as long as user carries the mobile terminal adopting capacitance touch screen, can the quantity of adding users belongings, and the skin protection suggestion of the directiveness of specialty can be provided to user.
Fig. 5 shows the fifth embodiment of the present invention.
Fig. 5 is the structural representation of a kind of mobile terminal of fifth embodiment of the invention.As shown in Figure 5, the mobile terminal 500 described in the present embodiment comprises: the device 502 of capacitance touch screen 501 and detection of skin water content.Wherein, the device 502 of detection of skin water content comprises: detection module 5021, for detecting the touching signals of described contact skin capacitance touch screen; Acquisition module 5022, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals; Dielectric constant computing module 5023, for calculating the dielectric constant of described skin according to coupling capacitance and contact area; Moisture content of skin computing module 5024, for calculating moisture content of skin according to described dielectric constant; Display module 5025, for showing moisture content of skin, and provides skin nursing to advise.
Modules in the device 502 of the detection of skin water content in the 5th embodiment is functionally identical with each corresponding module of the device 300 of detection of skin water content according to a third embodiment of the present invention, does not repeat them here.
The present embodiment, by the water content of the mobile terminal detection of skin containing capacitance touch screen, decreases the quantity of user's belongings, and can provide the skin protection suggestion of the directiveness of specialty to user.
Fig. 6 shows the sixth embodiment of the present invention.
Fig. 6 is the structural representation of a kind of mobile terminal of sixth embodiment of the invention.As shown in Figure 6, the mobile terminal 600 described in the present embodiment comprises: the device 602 of capacitance touch screen 601 and detection of skin water content.Wherein, the device 602 of detection of skin water content comprises: data model sets up module 6021, for setting up the data model of coupling capacitance and moisture content of skin; Detection module 6022, for detecting the touching signals of described contact skin capacitance touch screen; Acquisition module 6023, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals; Dielectric constant computing module 6024, for calculating the dielectric constant of described skin according to coupling capacitance and contact area; Moisture content of skin computing module 6025, for calculating moisture content of skin according to described dielectric constant; Display module 6026, for showing moisture content of skin, and provides skin nursing to advise.
Modules in the device 602 of detection of skin water content is in the sixth embodiment functionally identical with each corresponding module of the device 400 of detection of skin water content according to a fourth embodiment of the present invention, does not repeat them here.
The present embodiment is by the water content of the mobile terminal detection of skin containing capacitance touch screen, relative to the 5th embodiment, the present embodiment is by setting up the data model of coupling capacitance and moisture content of skin, obtain the coupling capacitance of contact skin touch screen, calculate dielectric constant and the quantized data thereof of skin, water content corresponding to described quantized data can be found in described data model.Decrease the quantity of user's belongings, and the skin protection suggestion of the directiveness of specialty can be provided to user.
Note, above are only preferred embodiment of the present invention and institute's application technology principle.Skilled person in the art will appreciate that and the invention is not restricted to specific embodiment described here, various obvious change can be carried out for a person skilled in the art, readjust and substitute and can not protection scope of the present invention be departed from.Therefore, although be described in further detail invention has been by above embodiment, the present invention is not limited only to above embodiment, when not departing from the present invention's design, can also comprise other Equivalent embodiments more, and scope of the present invention is determined by appended right.
Claims (7)
1. a method for detection of skin water content, is characterized in that, described method comprises:
Set up the data model of coupling capacitance and moisture content of skin;
Detect the touching signals of described contact skin capacitance touch screen;
The contact area of coupling capacitance and described skin and described capacitance touch screen is obtained according to described touching signals;
The dielectric constant of described skin is calculated according to coupling capacitance and contact area;
Moisture content of skin is calculated according to described dielectric constant and described data model;
Show described moisture content of skin, and provide skin nursing to advise.
2. the method for detection of skin water content according to claim 1, is characterized in that, the described data model setting up coupling capacitance and moisture content of skin comprises:
The touching signals of detection of skin hand capacity touch screen, the water content of described skin is known;
The contact area of coupling capacitance and described skin and described capacitance touch screen is obtained according to described touching signals;
The dielectric constant of described skin is calculated according to coupling capacitance and contact area;
Described dielectric constant is carried out quantification and obtains quantized data;
Record the quantized data of dielectric constant corresponding to the water content of described skin;
The sample data that statistics moisture content of skin forms with corresponding quantized data;
According to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
3. the method for detection of skin water content according to claim 1, is characterized in that, describedly calculates moisture content of skin according to described dielectric constant and described data model and comprises:
Described dielectric constant is carried out quantification and obtains quantized data;
According to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
4. a device for detection of skin water content, is characterized in that, described device comprises:
Data model sets up module, for setting up the data model of coupling capacitance and moisture content of skin;
Detection module, for detecting the touching signals of described contact skin capacitance touch screen;
Acquisition module, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals;
Dielectric constant computing module, for calculating the dielectric constant of described skin according to coupling capacitance and contact area;
Moisture content of skin computing module, for calculating moisture content of skin according to described dielectric constant and described data model;
Display module, for showing described moisture content of skin, and provides skin nursing to advise.
5. the device of detection of skin water content according to claim 4, is characterized in that, described data model is set up module and comprised:
Detecting unit, for the touching signals of detection of skin hand capacity touch screen, the water content of described skin is known;
Acquiring unit, for obtaining the contact area of coupling capacitance and described skin and described capacitance touch screen according to described touching signals;
Computing unit, for calculating the dielectric constant of described skin according to coupling capacitance and contact area;
Quantifying unit, obtains quantized data for described dielectric constant is carried out quantification;
Record cell, for recording the quantized data of dielectric constant corresponding to described moisture content of skin;
Statistic unit, for adding up the sample data that moisture content of skin forms with corresponding quantized data;
Data model sets up unit, and for according to described sample data, set up the data model that described moisture content of skin forms with corresponding described quantized data, wherein, described data model represents the mapping table of quantized data and moisture content of skin.
6. the device of detection of skin water content according to claim 4, is characterized in that, described moisture content of skin computing module comprises:
Quantifying unit, obtains quantized data for described dielectric constant is carried out quantification;
Search unit, for according to described quantized data, in described data model, search the moisture content of skin corresponding with described quantized data.
7. a mobile terminal, described mobile terminal comprises capacitance touch screen, it is characterized in that, described mobile terminal comprises the device of the detection of skin water content according to any one of claim 4-6.
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| CN103622694B (en) * | 2013-12-03 | 2016-08-17 | 中国科学院深圳先进技术研究院 | Skin moisture detector |
| CN104799857A (en) * | 2014-01-27 | 2015-07-29 | 杭州雪肌科技有限公司 | Method for detecting comprehensive skin data |
| CN105893721A (en) * | 2014-05-13 | 2016-08-24 | 陈威宇 | Adaptive skin care information prompt system and adaptive skin care prompt method |
| CN106250670A (en) * | 2016-07-14 | 2016-12-21 | 深圳可思美科技有限公司 | Beauty treatment scheme method for customizing and device |
| CN109381164B (en) * | 2018-09-11 | 2022-02-08 | 北京小米移动软件有限公司 | Skin humidity detection method and device |
| CN109793498B (en) * | 2018-12-26 | 2020-10-27 | 华为终端有限公司 | Skin detection method and electronic equipment |
| KR20210018702A (en) | 2019-08-09 | 2021-02-18 | 삼성디스플레이 주식회사 | Sensor unit having force sensor, display device including the same, and method for measuring moisture of the same |
| CN112505111A (en) * | 2020-11-13 | 2021-03-16 | 东莞华贝电子科技有限公司 | Air humidity detection device, fingerprint unlocking equipment and detection method |
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| CN1795813A (en) * | 2004-12-28 | 2006-07-05 | 中田泰尊 | Skin analysis system, scalp hair analysis system |
| CN201001730Y (en) * | 2007-01-19 | 2008-01-09 | 廖植生 | Skin moisture test pen |
| CN102065750A (en) * | 2008-06-19 | 2011-05-18 | 罗伯特·博世有限公司 | Device for determining and/or monitoring the moisture content of the skin |
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| JP5646939B2 (en) * | 2010-09-29 | 2014-12-24 | テルモ株式会社 | Moisture meter |
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| CN1795813A (en) * | 2004-12-28 | 2006-07-05 | 中田泰尊 | Skin analysis system, scalp hair analysis system |
| CN201001730Y (en) * | 2007-01-19 | 2008-01-09 | 廖植生 | Skin moisture test pen |
| CN102065750A (en) * | 2008-06-19 | 2011-05-18 | 罗伯特·博世有限公司 | Device for determining and/or monitoring the moisture content of the skin |
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