CN203016951U - Human skin moisture content detection device - Google Patents
Human skin moisture content detection device Download PDFInfo
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- CN203016951U CN203016951U CN 201220690768 CN201220690768U CN203016951U CN 203016951 U CN203016951 U CN 203016951U CN 201220690768 CN201220690768 CN 201220690768 CN 201220690768 U CN201220690768 U CN 201220690768U CN 203016951 U CN203016951 U CN 203016951U
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Abstract
The utility model discloses a human skin moisture content detection device which comprises a probe, an analog-digital conversion unit, a signal processing unit and a display unit. The probe comprises at least two sensors and is used for detecting and obtaining a current skin parameter, and the current skin parameter comprises a current skin capacitance and a current skin environmental interference value. The analog-digital conversion unit is used for enabling the current skin capacitance and the current skin environmental interference value which are obtained by the probe to be converted into digital signals. The signal processing unit is used for obtaining a current skin moisture content parameter according to the digital signals which are converted by the analog-digital conversion unit, and the moisture content parameter comprises current skin relative humidity. The display unit is used for displaying the current skin moisture content parameter. The human skin moisture content detection device which is small, exquisite, accurate, simple in structure and low in cost is adopted, and therefore the influence of factors such as temperature and humidity of a detection environment on a detection result can be reduced to the maximum degree.
Description
Technical field
This utility model relates to the human body skin detection field, has especially related to a kind of human body skin moisture checkout gear.
Background technology
Along with the raising of people's living standard, people increase beautiful and healthy requirement thereupon, and skin is an important step that concerns that people are beautiful with healthy.
From skin mechanism aspect, skin moisture content is determined by inside and outside two kinds of factors, keratodermatitis keeps the moisture capacity variation larger, and moisture can from 10% to 60% changes, the composition of aqueous mixtures in topmost or the respiratory that skin is perspired and skin.External factor comprises ambient temperature, humidity, medicine and cosmetics etc., can determine and change the moisture in skin.Skin moisture content can affect the water of skin surface and the formation of oils and fats hybrid films, and this layer protecting film is very important to the aging that prevents skin.Therefore the test skin moisture content of quantification and relatively necessarily the variable quantity after the nursing stage be of great use.
Traditional human body skin moisture detecting method has Bioelectrical impedance analysis and capacitance method.Wherein Bioelectrical impedance analysis (BIA) is a kind of detection method that the body composition measurement comprises body fat and total body water that is usually used in.It is a kind of skin moisture measuring method of 200510011875.2 as the patent No..The ultimate principle of BIA method is the skin that Weak current that a frequency is 50KHz acts on us, a kind of electrical impedance of various compound formation on skin, namely hinder electric current by bodily tissue, and can calculate cuticular water content (moisture) by calculating this electrical impedance.
Yet, many studies show that, the existence larger error of BIA method aspect measurement human body skin moisture, in addition, at present, can accurately detect local skin moisture although adopt the device of capacitance method to compare Bioelectrical impedance analysis, because the deficiencies such as cost height and complex structure are difficult to popularize.
The utility model content
This utility model embodiment technical problem to be solved is, a kind of human body skin moisture content detection device small and exquisite, accurate, simple in structure, with low cost is provided.
In order to solve the problems of the technologies described above, this utility model embodiment provides a kind of human body skin moisture checkout gear, comprising:
Probe, described probe comprises at least two sensors, for detection of obtaining current skin parameters, described current skin parameters comprises current skin capacitance and current skin environment interference value;
AD conversion unit, the current skin capacitance and the described current skin environment interference value that are used for described probe is obtained are converted to digital signal;
Signal processing unit is used for obtaining according to the digital signal of described AD conversion unit conversion the moisture parameter of described current skin, and described moisture parameter comprises the relative humidity of described current skin;
Display unit is for the moisture parameter that shows described current skin.
Further, described probe comprises two sensors, is respectively:
First sensor is for detection of the capacitance of obtaining described current skin;
The second sensor is for detection of the environmental disturbances value of obtaining described current skin.
Further, described sensor is capacitance sensor.
Further, described AD conversion unit is single-chip.
Further, described signal processing unit comprises:
Low-pass filter unit is used for the digital signal of described AD conversion unit conversion is carried out low-pass filtering;
The relative humidity calculation unit is used for the relative humidity with the described current skin of the calculating of the digital signal after described low-pass filtering.
Further, described signal processing unit also comprises:
Memory element, the relative humidity that is used for storing the environmental disturbances value of described current skin capacitance and described current skin and calculates the current skin that obtains through described relative temperature computing unit.
System's electric weight monitoring unit is for the electric weight of monitoring described human body skin moisture checkout gear.
Further, described signal processing unit is analog controller.
Further, described display unit is LCDs.
Further, human body skin moisture checkout gear also comprises data transmission unit, is used for the moisture parameter of described current skin is sent to other terminal.
Further, described data transmission unit comprises:
Wired transmitting element is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wired mode; The wireless transmission unit is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wireless mode.
Implement this utility model embodiment, have following beneficial effect:
In this utility model, the capacitance by adopting two-capacitance sensor mode detection of skin horny layer moisture and the environmental disturbances value of skin are measured the relative humidity of human body skin, the i.e. water quantities of human body skin.Two-capacitance sensor can reduce the factor such as the temperature, humidity of testing environment to greatest extent on the impact of testing result, thereby obtains more accurate result, so that a kind of accurate human body skin moisture content detection device to be provided.
And, adopt the electric capacity digital conversion technique of single-chip that the capacitance that capacitance sensor detects acquisition is converted to digital signal, greatly reduce the complexity of device, so that a kind of small and exquisite, human body skin moisture checkout gear that cost is low, simple in structure to be provided.
This utility model can be fast and is accurately detected the water quantities of human body skin, distinguishes whereby the effect of cosmetics.Aspect medical and beauty treatment, can more accurately know the moisture of human body skin, thereby select better cosmetics, protection skin.
Description of drawings
Fig. 1 is the schematic diagram of a kind of human body skin moisture of this utility model checkout gear the first embodiment;
Fig. 2 is the structural representation of the probe of a kind of human body skin moisture of this utility model checkout gear;
Fig. 3 is the schematic diagram of the signal processing unit of a kind of human body skin moisture of this utility model checkout gear;
Fig. 4 is the another schematic diagram of the signal processing unit of a kind of human body skin moisture of this utility model checkout gear;
Fig. 5 is the schematic diagram of a kind of human body skin moisture of this utility model checkout gear the second embodiment;
Fig. 6 is the schematic diagram of the data transmission unit of a kind of human body skin moisture of this utility model checkout gear.
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, this utility model is described in further detail.
Referring to Fig. 1, this utility model embodiment provides a kind of the first embodiment of human body skin moisture checkout gear 1, comprising:
Concrete, probe 11 detects and obtains current skin capacitance and current skin environment interference value, AD conversion unit 12 is converted to digital signal with current skin capacitance and the described current skin environment interference value that described probe 11 obtains, ask difference after the digital signal of signal processing unit 13 with described AD conversion unit 12 conversions, the difference of gained can obtain human body skin relative humidity content through converting, and last human body skin relative humidity content is shown by display unit 14.Wherein, the differential technique process is as follows:
Skin moisture value+p* environmental disturbances value=current skin capacitance value
P represents relative error, and span is done variation according to specific crowd, and obtaining moisture of skin is worth result to be: current skin capacitance value-p* environmental disturbances value.
This utility model is to adopt the two-capacitance sensor differential mode to come the capacitance of detection of skin horny layer moisture indirectly to measure the relative humidity of human body skin.It adopts the method for the difference input of two capacitance sensors, with the input of two capacitance sensors whiles as the electric capacity digital converter.The capacitance sensor of one of them passage comes the balance environment to the interference of testing result as with reference to input; The capacitance sensor of another passage is used for the cuticular moisture of detection of skin.Digital signal to two electric capacity digital converter passages is asked difference, and the difference of last gained can obtain human body skin relative humidity content through converting.Therefore, two-capacitance sensor can reduce the factor such as the temperature, humidity of testing environment to greatest extent on the impact of testing result, thereby obtains more accurate result.
Referring to Fig. 2, described probe 11 comprises two sensors, is respectively:
The second sensor 112 is for detection of the environmental disturbances value of obtaining described current skin.
Preferably, described sensor is capacitance sensor.
Described AD conversion unit 12 is single-chip.Adopt the electric capacity digital conversion technique of single-chip that capacitance sensor is detected the capacitance that obtains and be converted to digital signal, greatly reduce the complexity of device, so that a kind of small and exquisite, human body skin moisture checkout gear that cost is low, simple in structure to be provided.
Referring to Fig. 3, Fig. 3 has shown signal processing unit 13, comprising:
Low-pass filter unit 131 is used for the digital signal of described AD conversion unit 12 conversions is carried out low-pass filtering;
Relative humidity calculation unit 132 is used for the relative humidity with the described current skin of the calculating of the digital signal after described low-pass filtering.
Referring to Fig. 4, Fig. 4 has shown another signal processing unit 13, and different from described signal processing unit 13 shown in Figure 3 is that described signal processing unit 13 shown in Figure 4 also comprises:
System's electric weight monitoring unit 134 is for the electric weight of monitoring described human body skin moisture checkout gear.
Preferably, described signal processing unit 13 is analog controller.
Better, the function of described low-pass filter unit 131, relative humidity calculation unit 132, memory element 133 and system's electric weight monitoring unit 134 can be designed to one, microprocessor by one realizes, for example the super low-power consumption microcontroller processor A DUC7061 of ADI company.Wherein, low-pass filter unit 131 adopts FIR Windowed filtering device to limit band sampling and analog digital conversion, output to input signal.How many electric weight of system's electric weight monitoring unit 134 present power supplys of hommization ground reminding user has, and avoided the inconvenience that is brought by the electric quantity of power supply deficiency.
Preferably, described display unit 14 is LCDs.
Fig. 5 provides a kind of the second embodiment of human body skin moisture checkout gear 1, with the first embodiment difference of human body skin moisture checkout gear 1 shown in Figure 1 be also to comprise:
Need to prove, that the mode that sends data comprises is wired, wireless, bluetooth etc., but is not limited to this.
Referring to Fig. 6, described data transmission unit 15 comprises:
Wired transmitting element 151 is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wired mode;
Wireless transmission unit 152 is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wireless mode.
The above is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from this utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (10)
1. a human body skin moisture checkout gear, is characterized in that, comprising:
Probe, described probe comprises at least two sensors, for detection of obtaining current skin parameters, described current skin parameters comprises current skin capacitance and current skin environment interference value;
AD conversion unit, the current skin capacitance and the described current skin environment interference value that are used for described probe is obtained are converted to digital signal;
Signal processing unit is used for obtaining according to the digital signal of described AD conversion unit conversion the moisture parameter of described current skin, and described moisture parameter comprises the relative humidity of described current skin;
Display unit is for the moisture parameter that shows described current skin.
2. human body skin moisture checkout gear as claimed in claim 1, is characterized in that, described probe comprises two sensors, is respectively:
First sensor is for detection of the capacitance of obtaining described current skin;
The second sensor is for detection of the environmental disturbances value of obtaining described current skin.
3. human body skin moisture checkout gear as claimed in claim 1 or 2, is characterized in that, described sensor is capacitance sensor.
4. human body skin moisture checkout gear as claimed in claim 1, is characterized in that, described AD conversion unit is single-chip.
5. human body skin moisture checkout gear as claimed in claim 1, is characterized in that, described signal processing unit comprises:
Low-pass filter unit is used for the digital signal of described AD conversion unit conversion is carried out low-pass filtering;
The relative humidity calculation unit is used for the relative humidity with the described current skin of the calculating of the digital signal after described low-pass filtering.
6. human body skin moisture checkout gear as claimed in claim 5, is characterized in that, described signal processing unit also comprises:
Memory element, the relative humidity that is used for storing the environmental disturbances value of described current skin capacitance and described current skin and calculates the current skin that obtains through described relative temperature computing unit;
System's electric weight monitoring unit is for the electric weight of monitoring described human body skin moisture checkout gear.
7. human body skin moisture checkout gear as described in claim 5 or 6, is characterized in that, described signal processing unit is analog controller.
8. human body skin moisture checkout gear as claimed in claim 1, is characterized in that, described display unit is LCDs.
9. human body skin moisture checkout gear as claimed in claim 1, is characterized in that, also comprises data transmission unit, is used for the moisture parameter of described current skin is sent to other terminal.
10. human body skin moisture checkout gear as claimed in claim 9, is characterized in that, described data transmission unit comprises: wired transmitting element is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wired mode; The wireless transmission unit is used for that described signal processing unit is calculated the data that obtain and is sent to other terminal by wireless mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690768 CN203016951U (en) | 2012-12-13 | 2012-12-13 | Human skin moisture content detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220690768 CN203016951U (en) | 2012-12-13 | 2012-12-13 | Human skin moisture content detection device |
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| CN203016951U true CN203016951U (en) | 2013-06-26 |
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| CN 201220690768 Expired - Fee Related CN203016951U (en) | 2012-12-13 | 2012-12-13 | Human skin moisture content detection device |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622694A (en) * | 2013-12-03 | 2014-03-12 | 中国科学院深圳先进技术研究院 | Skin moisture detector |
| CN104783763A (en) * | 2015-04-23 | 2015-07-22 | 天津中医药大学 | Probe used for detecting human skin temperature, humidity and resistance |
| CN104799856A (en) * | 2014-01-27 | 2015-07-29 | 杭州雪肌科技有限公司 | Tester for testing skin data |
| WO2016179872A1 (en) * | 2015-05-12 | 2016-11-17 | 深圳市和宏实业股份有限公司 | Tester for skin moisture and chemical components on fruit and vegetable surfaces |
| CN106152924A (en) * | 2016-07-02 | 2016-11-23 | 南京河海南自水电自动化有限公司 | The measurement apparatus of a kind of condenser type tensile-line instrument and measuring method |
| WO2017216717A1 (en) * | 2016-06-13 | 2017-12-21 | Topfeelpack Co. Ltd | A device and cosmetic bottle cap for intelligent detection of skin's water and oil contents |
| CN107705281A (en) * | 2016-08-09 | 2018-02-16 | 上海图檬信息科技有限公司 | Temperature sensing method for skin detection |
| CN109118260A (en) * | 2017-06-23 | 2019-01-01 | 杭州美界科技有限公司 | A kind of beauty recommender system based on Customer Information acquisition |
| CN111556726A (en) * | 2017-12-27 | 2020-08-18 | 皇家飞利浦有限公司 | Determining moisture or lipid levels of skin |
-
2012
- 2012-12-13 CN CN 201220690768 patent/CN203016951U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103622694A (en) * | 2013-12-03 | 2014-03-12 | 中国科学院深圳先进技术研究院 | Skin moisture detector |
| CN104799856A (en) * | 2014-01-27 | 2015-07-29 | 杭州雪肌科技有限公司 | Tester for testing skin data |
| CN104783763A (en) * | 2015-04-23 | 2015-07-22 | 天津中医药大学 | Probe used for detecting human skin temperature, humidity and resistance |
| WO2016179872A1 (en) * | 2015-05-12 | 2016-11-17 | 深圳市和宏实业股份有限公司 | Tester for skin moisture and chemical components on fruit and vegetable surfaces |
| WO2017216717A1 (en) * | 2016-06-13 | 2017-12-21 | Topfeelpack Co. Ltd | A device and cosmetic bottle cap for intelligent detection of skin's water and oil contents |
| CN106152924A (en) * | 2016-07-02 | 2016-11-23 | 南京河海南自水电自动化有限公司 | The measurement apparatus of a kind of condenser type tensile-line instrument and measuring method |
| CN107705281A (en) * | 2016-08-09 | 2018-02-16 | 上海图檬信息科技有限公司 | Temperature sensing method for skin detection |
| CN109118260A (en) * | 2017-06-23 | 2019-01-01 | 杭州美界科技有限公司 | A kind of beauty recommender system based on Customer Information acquisition |
| CN111556726A (en) * | 2017-12-27 | 2020-08-18 | 皇家飞利浦有限公司 | Determining moisture or lipid levels of skin |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20131213 |