CN104883970A - Skin condition measuring device for smartphone - Google Patents
Skin condition measuring device for smartphone Download PDFInfo
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- CN104883970A CN104883970A CN201380066718.4A CN201380066718A CN104883970A CN 104883970 A CN104883970 A CN 104883970A CN 201380066718 A CN201380066718 A CN 201380066718A CN 104883970 A CN104883970 A CN 104883970A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0077—Devices for viewing the surface of the body, e.g. camera, magnifying lens
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/053—Measuring electrical impedance or conductance of a portion of the body
- A61B5/0531—Measuring skin impedance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/44—Detecting, measuring or recording for evaluating the integumentary system, e.g. skin, hair or nails
- A61B5/441—Skin evaluation, e.g. for skin disorder diagnosis
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
- A61B2562/02—Details of sensors specially adapted for in-vivo measurements
- A61B2562/0209—Special features of electrodes classified in A61B5/24, A61B5/25, A61B5/283, A61B5/291, A61B5/296, A61B5/053
- A61B2562/0215—Silver or silver chloride containing
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Heart & Thoracic Surgery (AREA)
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- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
Disclosed is a skin condition measuring device for a smartphone. The skin state measuring device for a smartphone according to the present invention comprises: a capture means (140) having a camera module (141) for capturing an image and having a light source (142) for shining light to the front of the camera module (141); a MCU (150) for controlling at least one of an oil and water fraction measuring means (110), a body temperature measuring means (120), a pH measuring means (130) and the capture means (140); and a USB hub controller (160) which is connected via USB to a smartphone (10), sends the image captured by the capture means (140) and a skin-condition measurement value obtained from the MCU (150) to the smartphone (10), and transmits a control signal from the smartphone (10) to the MCU (150) or the capture means (140); and the invention also comprises at least one of: the water fraction measuring means (110) which detects a voltage drop occurring on either side of a measurement electrode plate (112) when in contact with the user's skin; the body temperature measuring means (120) which detects the temperature of the measurement point; and the pH measuring means (130) which detects the potential difference that occurs between a comparison electrode (131) and a glass membrane electrode (132) when in contact with the user's skin. According to the present invention, the user can straightforwardly diagnose the condition of their own skin regardless of place and time.
Description
Technical field
The invention belongs to smart mobile phone peripheral equipment technical field.
Background technology
Day by day increase along with to the attention rate of beautifying skin, a lot of user confirms skin condition by skin caretaker room or the number of ways such as massage parlor, department of dermatologry hospital, and uses the management skins such as suitable cosmetics or medicine.
Large change can be there is with season in the skin condition of people, and because of everyone deviation very large, in order to suitable prescription, diagnosis accurately seems particularly important.
In order to diagnose skin condition, the ground such as department of dermatologry hospital or clinic have professional medical equipment, thus can carry out take pore amplification according to wait diagnose shape be.
But because day by day increasing the care of beautifying skin, also when the river rises the boat goes up to the know-how of skin for user, user more and more wishes to understand the state of oneself skin or the state change of skin in detail.
Nonetheless, just to monitoring skin condition, the use variation tendency of cosmetics etc. is grasped and regular visit clinic etc. are very loaded down with trivial details things.
Therefore, being badly in need of one can be carried by user, simply can confirm and diagnose the scheme of the skin condition of oneself.
Summary of the invention
The technical problem solved
The present invention proposes to solve the problem of this prior art, the object of the invention is to, smart mobile phone skin condition determinator is provided, above-mentioned smart mobile phone skin condition determinator is connected with smart mobile phone by USB mode, the water quantities of the multiple area skin such as face, neck, health of human body, oil content (sebum) amount, acidity (pH), skin temperature can be come by using the operation of user of smart mobile phone, and carried out the skin of bust shot relevant position by minimal type photographic head, thus transmit to smart mobile phone.
The method of technical solution problem
In order to realize this object, smart mobile phone skin condition determinator of the present invention comprises: shooting unit 140, have camera module 141 and light source 142, above-mentioned camera module 141 is for taking image, and above-mentioned light source 142 irradiates light to the front of above-mentioned camera module 141;
MCU150, for control profit divide determination unit 110, body temperature measurement unit 120, pH determination unit 130 or shooting unit 140 in more than one; And
Usb hub controller 160, be connected with smart mobile phone 10 by USB mode, the image taken by above-mentioned shooting unit 140 and the skin condition measured value obtained from above-mentioned MCU150 is transmitted to above-mentioned smart mobile phone 10, and transmit the control signal from above-mentioned smart mobile phone 10 to above-mentioned MCU150 or above-mentioned shooting unit 140, above-mentioned smart mobile phone skin condition determinator also comprises profit and divides determination unit 110, one or more in body temperature measurement unit 120 and pH determination unit 130, above-mentioned profit divides determination unit 110 for detecting when contacting the skin of user at the voltage drop that the both sides measuring pole plate 112 produce, above-mentioned body temperature measurement unit 120 is for the temperature in detection assay place, above-mentioned pH determination unit 130 is for detecting when contacting the skin of user in the potential difference relatively produced between electrode 131 and glass-membrane electrode 132,
Along with above-mentioned usb hub controller 160 is electrically connected with smart mobile phone 10, and apply control signal from above-mentioned smart mobile phone 10, above-mentioned light source 142 irradiates light to the front of above-mentioned camera module 141, and above-mentioned camera module 141 takes image,
Above-mentioned MCU150 calculates oil content and the moisture state of the skin of user by the voltage drop value of dividing determination unit 110 to detect from profit, or calculated the pH value of user skin by the potential difference detected from above-mentioned pH determination unit 130, or receive the temperature measuring place from body temperature measurement unit 120.
On the other hand, the one side of smart mobile phone skin condition determinator of the present invention can comprise: shell 170, there is front face 171 and photographic head assembly space portion 172, above-mentioned front face 171 is arranged at the side end of shell 170, and above-mentioned photographic head assembly space portion 172 is formed from side opening in the mediad of above-mentioned front face 171 or depression predetermined length;
Profit divides determination unit 110, and the mode exposed to the front face 171 of above-mentioned shell 170 to measure pole plate 112 is assembled, and when contacting the skin of user, above-mentioned profit divides determination unit 110 to detect the voltage drop produced in the both sides of said determination pole plate 112;
Body temperature measurement unit 120, assembles in the mode exposed to the front face 171 of above-mentioned shell 170, and when contacting the skin of user, above-mentioned body temperature measurement unit 120 detects the body temperature of user; Camera module 141, is installed on above-mentioned photographic head assembly space portion 172, for taking image towards above-mentioned front face 171; Light source 142, is arranged at the side of above-mentioned camera module 141, and irradiates light towards above-mentioned front face 171;
MCU (MCU) 150, is arranged at the inside of above-mentioned shell 170, divides determination unit 110, above-mentioned body temperature measurement unit 120, camera module 141 or light source 142 for controlling above-mentioned profit; And
Usb hub controller 160, there is the socket 161 of the side being exposed to above-mentioned shell 170, for carrying out USB cable connection, by the USB cable be connected with above-mentioned socket 161, be connected with smart mobile phone 10 in USB mode, and transmit the image taken by above-mentioned camera module 141 and the skin condition measured value obtained from above-mentioned MCU150 to above-mentioned smart mobile phone 10, and transmit the control signal of above-mentioned smart mobile phone 10 to above-mentioned MCU150 or above-mentioned camera module 141.
On the other hand, the another aspect of smart mobile phone skin condition determinator of the present invention can comprise: shell 170, in the shape that extend long to direction, side, there is front face 171, back part 172 and photographic head assembly space portion 173, above-mentioned front face 171 is formed at the side end of above-mentioned shell 170, above-mentioned back part 172 is formed at the opposite side end of above-mentioned shell 170, and above-mentioned photographic head assembly space portion 173 is formed in the mode of side opening in the mediad from above-mentioned back part 172 or depression predetermined length;
Profit divides determination unit 110, and the mode being exposed to the front face 171 of above-mentioned shell 170 to measure pole plate 112 is assembled, and when contacting the skin of user, above-mentioned profit divides determination unit 110 to detect the voltage drop produced in the both sides of said determination pole plate 112;
Body temperature measurement unit 120, assembles in the mode of the front face 171 being exposed to above-mentioned shell 170, and when contacting the skin of user, above-mentioned body temperature measurement unit 120 detects the body temperature of user;
PH determination unit 130, length direction along above-mentioned shell 170 is assemblied in the inside of above-mentioned shell 170, be configured to the front face 171 that glass electrode film 133 is exposed to above-mentioned shell 170, when contacting the skin of user, detect in the potential difference relatively produced between electrode 131 and glass-membrane electrode 132;
Camera module 141, is installed on above-mentioned photographic head assembly space portion 173, for taking image towards above-mentioned back part 172;
Light source 142, is arranged at the side of above-mentioned camera module 141, and irradiates light towards above-mentioned back part 172;
MCU150, is arranged at the inside of above-mentioned shell 170, and controls above-mentioned profit and divide determination unit 110, above-mentioned body temperature measurement unit 120, pH determination unit 130, camera module 141 or light source 142; And
Usb hub controller 160, there is the socket 161 of the side being exposed to above-mentioned shell 170, above-mentioned socket 161 is for carrying out USB cable connection, by the USB cable be connected with above-mentioned socket 161, be connected with smart mobile phone 10 by USB mode, and transmit the image taken by above-mentioned camera module 141 and the skin condition measured value obtained from above-mentioned MCU150 to above-mentioned smart mobile phone 10, and transmit the control signal from above-mentioned smart mobile phone 10 to above-mentioned MCU150 or above-mentioned camera module 141.
Invention effect
According to this present invention, even if user does not access the mechanisms such as the clinic with professional equipment, also can measure the water quantities of oneself skin, oil content (sebum) amount, acidity (pH), skin temperature whenever and wherever possible easily, and the skin condition of relevant position can be confirmed in visual mode.
On the other hand, by using usb host function, user simply can arrange application program by means of only being connected to fetch with smart mobile phone, thus controls smart mobile phone skin condition determinator of the present invention.
Especially, by being made into small-sized device, together can carry with smart mobile phone, again can when not by simply diagnosis oneself or other people skin condition when place and the constraint of time.
Accompanying drawing explanation
Fig. 1 is the figure of the structure of smart mobile phone skin condition determinator for illustration of one embodiment of the invention.
Fig. 2 is the figure of the structure of smart mobile phone skin condition determinator for illustration of another embodiment of the present invention.
Fig. 3 is the figure illustrating the form that smart mobile phone skin condition determinator of the present invention is connected with smart mobile phone.
Fig. 4 illustrates to use smart mobile phone skin condition determinator of the present invention to measure the figure of skin condition.
Fig. 5 be for illustration of the structural element of smart mobile phone skin condition determinator of the present invention between the block diagram of annexation.
Fig. 6 is the block diagram of the structure of dividing determination unit for illustration of profit.
Fig. 7 is for illustration of measuring the figure trying to achieve the signal intensity in the process of impedance in the voltage drop occurred in electrode.
Fig. 8 is the block diagram of the structure for illustration of pH determination unit.
Fig. 9 is the flow chart of the work process for illustration of smart mobile phone skin condition determinator of the present invention.
Detailed description of the invention
Below, with reference to accompanying drawing, the preferred embodiments of the present invention and accompanying drawing are described in detail.On the other hand, in order to make the present invention definitely, omit the content irrelevant with structure of the present invention, and censure premised on identical structural element by the identical Reference numeral of accompanying drawing and be described.
On the other hand; when " comprising " another structural element in detailed description of the present invention or protection domain middle finger structural element; unless there are record contrary especially, would not limited interpretation for being only made up of said structure key element, but be interpreted as also can comprising other structural elements.
And; be named as in detailed description of the invention or protection domain " ~ unit ", " ~ portion ", " ~ module ", " ~ block " structural element mean unit for the treatment of at least one function or action, these can embody respectively by software or hardware or their combination.
First, shape and the structural element of smart mobile phone skin condition monitoring device 100 of the present invention is simply observed with reference to Fig. 1 and Fig. 2.
The figure of the structure of Fig. 1 smart mobile phone skin condition determinator that to be the figure of the structure of smart mobile phone skin condition determinator for illustration of one embodiment of the invention, Fig. 2 be for illustration of another embodiment of the present invention.
First, the smart mobile phone skin condition determinator 100 of the present invention shown in Fig. 1 has the shell 170 of synthetic resin or metal material.
As shown in Figure 1, preferably, shell 170 is in the drum that extend long to direction, side.
Now, profit divides determination unit 110 and body temperature measurement unit 120 to arrange in the mode of the front face 171 being exposed to the side end of shell 170.
On the other hand, the central part of front face 171 forms opening or forms depression to pressing predetermined length to inward side.
The photographic head assembly space portion 173 in space as the inside being formed at above-mentioned shell 170 is in this way provided with camera module 141 and light source 142.
On the other hand, camera module 141 can use existing capturing element.Such as, 5,000,000 pixel CMOS camera modules etc. can be used.
Now, importantly, as shown in Figure 4, while actually employed, the distance that should be adjusted between the skin of user and camera module 141 is consistent with the focal length of above-mentioned camera module 141.
Further, fully cover veiling glare to prevent the impact being subject to exterior lighting, and use the independent oneself's illumination based on light source 142.
Photographic head assembly space portion 173 blocks the veiling glare from outside.
Moreover, make the distance between front face 171 and camera module 141 consistent with the focal length of above-mentioned camera module 141, thus when the actual use of user, make the skin as the user at reference object position enter into the focal length of camera module 141 exactly.
On the other hand, in the downside of the camera module 141 of the inside of shell 170, be laminated with printed base plate, and be provided with the socket 161 for carrying out USB cable connection at the opposite side end of shell 170.
On the other hand, printed base plate is provided with MCU150 and usb hub controller 160.
Profit divides determination unit 110 to have to be exposed to the mensuration pole plate 112 of the front face 171 of shell 170.
On the other hand, when contacting the skin of user, this profit divides determination unit 110 for detecting the voltage drop produced in the both sides of said determination pole plate 112.
Body temperature measurement unit 120 is exposed to the front face 171 of shell 170 mode with sensor site is arranged.On the other hand, when contacting the skin of user, this body temperature measurement unit 120 detects the body temperature of user.
Camera module 141 is as the unit of the skin for taking user, and above-mentioned camera module 141 is installed on above-mentioned photographic head assembly space portion 173 towards above-mentioned front face 171.
On the other hand, light source 142 is also provided with in the side of above-mentioned camera module 141.
This light source 142 is preferably disposed on the side of above-mentioned camera module 141 in the mode at the shooting angle can not blocking above-mentioned camera module 141, and sufficient illumination during by irradiating light towards above-mentioned front face 171 and ensureing that camera module 141 is taken.
MCU150 is arranged at the inside of above-mentioned shell 170, controls above-mentioned profit and divides determination unit 110, above-mentioned body temperature measurement unit 120, camera module 141 or light source 142.
On the other hand, usb hub controller 160 is electrically connected with USB 161, and by means of the USB cable that above-mentioned socket 161 connects, is connected with smart mobile phone 10 by USB mode.
Usb hub controller 160 applies the control signal transmitted by smart mobile phone 10 to above-mentioned MCU150 or above-mentioned camera module 141, on the contrary, transmit by above-mentioned camera module 141 to above-mentioned smart mobile phone 10 to the skin condition measured value of taking image and obtain from above-mentioned MCU150.
As shown in Figure 3, user utilizes independent USB cable to connect smart mobile phone 10 and socket 161.That is, usual used smart mobile phone 10 cable is utilized to connect smart mobile phone skin condition determinator 100 of the present invention and smart mobile phone 10.
Like this, under the state connecting smart mobile phone skin condition determinator 100 of the present invention and smart mobile phone 10, the vertical application of smart mobile phone 10 can be implemented to control smart mobile phone skin condition determinator 100.
Fig. 4 illustrates to use smart mobile phone skin condition determinator 10 of the present invention to measure the figure of the skin condition of oneself.
As shown in Figure 4, a user hands holds smart mobile phone 10, hold smart mobile phone skin condition determinator 10 of the present invention with another, and the front surface 171 of above-mentioned smart mobile phone skin condition determinator 100 is contacted with skin site to be determined.
Further, smart mobile phone skin condition determinator 100 of the present invention is driven by operative intelligence mobile phone 10.
Thus, as aftermentioned, the skin that smart mobile phone skin condition determinator 100 of the present invention amplifies user is taken, while distribution, body temperature that the profit measuring the skin of user divides.
That is, by one-off, not only can measure oily moisture state and the body temperature of skin, and skin histology can be amplified take.
Because profit divides determination unit 110 and body temperature measurement unit 120 to be exposed to directly and the front face 171 of the contact skin of user, therefore, profit can be measured by means of only one-off and divide and body temperature.
On the other hand, along with front face 171 contacts with the skin of user, carry out the veiling glare of covering outer by photographic head assembly space portion 173.
In this state, apply control signal along with from smart mobile phone 10 to smart mobile phone skin condition determinator 100, light source 142 forward face 171 irradiates light, and camera module 141 takes the skin of user.
Captured image, image and the profit measured divides and body temperature value is transmitted to smart mobile phone 10 by USB cable.
On the other hand, smart mobile phone 10 is to the information collected by server (not shown) transmission, and processed by predetermined mode, thus, user not only can be allowed to grasp at a glance, and the change of the skin condition of user can be provided, for improving the information such as the method for skin condition.
Another embodiment of the present invention shown in Fig. 2 is different from the smart mobile phone skin condition determinator 100 shown in Fig. 1, also has pH determination unit 130.
As aftermentioned, pH determination unit 130 is provided with electrode at two ends, and not only in longitudinally long shape, and due to volume relatively large, thus, when configuring to identical direction with camera module 141, the size of product becomes large, and is difficult to the shooting angle of fully guaranteeing camera module 141.
Due to this reason, in another embodiment shown in Fig. 2, be configured with camera module 141 in the opposite direction.
On the other hand, pH determination unit 130 is installed on the inside of shell 170 to the length direction of above-mentioned shell 170, and makes glass electrode film 133 be exposed to the front face 171 of above-mentioned shell 170.
As shown in Figure 4, if the skin of user contacts with glass electrode film 133, then as aftermentioned, pH determination unit 130 detects in the potential difference relatively produced between electrode 131 and glass-membrane electrode 132.
As shown in Figure 2, profit divides the mensuration pole plate 112 of determination unit 110 and body temperature measurement unit 120 also to assemble in the mode exposed to the front face 171 of above-mentioned shell 170.
On the contrary, as shown in Figure 2, photographic head assembly space portion 173 from be formed at shell 170 opposite side end back part 172 mediad in side opening or depression predetermined length mode formed.
Camera module 141 is installed on above-mentioned photographic head assembly space portion 173 towards above-mentioned back part 172, and light source 142 is also installed on above-mentioned photographic head assembly space portion 173 to the side of above-mentioned camera module 141.
MCU150 is arranged at the printed base plate of the inside being located at above-mentioned shell 170, and controls above-mentioned profit and divide determination unit 110, above-mentioned body temperature measurement unit 120, pH determination unit 130, camera module 141 or light source 142.
According to this another embodiment of the present invention, as shown in Figure 4, user can while carry smart mobile phone skin condition determinator 100, while make the front face 171 of shell 170 contact with skin measure skin condition, on the contrary, the back part 172 of shell 170 can be made to contact with skin and to take enlarged photograph.
Below, with reference to Fig. 5 to Fig. 8, each structural element of the smart mobile phone skin condition determinator 100 of the present invention with this shape is observed in detail.
Fig. 5 be for illustration of the structural element of smart mobile phone skin condition determinator of the present invention between the block diagram of annexation.
On the other hand, Fig. 6 is the block diagram of the structure of dividing determination unit for illustration of profit, and Fig. 7 is for illustration of measuring the figure trying to achieve the signal intensity in the process of impedance in the voltage drop occurred in electrode.
Further, Fig. 8 is the block diagram of the structure for illustration of pH determination unit.
The structural element of smart mobile phone skin condition determinator 100 of the present invention functionally, can graphically be roughly divided into inducing function, shoot function, signal processing function and information transfer capability.
Profit divides determination unit 110, body temperature measurement unit 120, pH determination unit 130 to be equivalent to sensor, and camera module 141 and light source 142 perform shoot function.
Further, MCU150 executive signal processing capacity, usb hub controller 160 performs information transfer capability.
On the other hand, the power supply needed for smart mobile phone skin condition determinator 100 can use the power supply of smart mobile phone 10.
Sensor is observed in turn.
First, when contacting the skin of user, profit divides determination unit 110 to detect the voltage drop produced in the both sides measuring pole plate 112.
As aftermentioned, this profit divides determination unit 110 to measure oil content state and the moisture state of skin by the Resistance Analysis of organism.
As shown in Figure 6, profit divides determination unit 110 to comprise: harmonic oscillator 111, for generation of harmonic wave; A pair mensuration pole plate 112 in opposite directions, is connected with the harmonic wave generation terminal of above-mentioned harmonic oscillator 111, and carries out ground connection via the first fixed resistance 113; And amplifier element 114, the voltage drop that the two side ends being amplified in said determination pole plate 112 occurs and the voltage drop value produced in the front and back of the first fixed resistance.
Along with MCU150 specifies occurrence frequency to harmonic oscillator 111, harmonic oscillator 111 produces harmonic wave.On the other hand, the harmonic wave generation terminal of harmonic oscillator 111 is connected with mensuration pole plate 112, carries out ground connection afterwards via the first fixed resistance 113.
Measuring pole plate 112 can be the metal material that conductivity is high, preferably, can use gold-plated copper coin.
Along with the skin of user contacts with mensuration pole plate 112, result from the corresponding voltage drop of the impedance Z of determination object at the both sides pole plate of said determination pole plate 112.
Also voltage drop is there is in the both sides of the first fixed resistance 113.
Amplifier element 114 is inputted to the A/D converter of MCU150 by the difference value of amplifying this voltage.
What will obtain in amplifier outlet waveform is the amplitude of signal, and therefore, the power supply of amplifier element 114 is+5V and GND, and amplification degree can consider that the maximum entrance potential of the A/D of MCU150 is set as 1.
On the other hand, calculate impedance from by measuring the voltage drop value that obtains of pole plate 112, and as follows for the mathematical expression of the characteristic of the moisture content and oil content of trying to achieve skin:
|Z|＝(|Uz|/|UR|)*R1
θ(ω)＝arccos((|U|2-|θ(ω)|2-|Ur|2)/(2*|Ur|*|Uz|))
Wherein, Z means the local impedance of the skin histology measured in pole plate 112, the Transfer function in the frequency domain that θ (ω) is Z.
On the other hand, Uz means the voltage characteristic in source data side pole plate, and Ur means reference resistance side voltage characteristic.
As shown in Figure 7, the waveform based on the voltage characteristic Uz applied in the mensuration pole plate 112 of harmonic wave and the voltage characteristic Ur in the first fixed resistance 113 end can be confirmed.
If utilize above-mentioned function to try to achieve θ (ω), then that tries to achieve moisture and oil content based on this by biologic resistance and moisture/oil content index mapping table comprises characteristic.
This process is performed at MCU150, particularly, MCU150 measures the value corresponding with the voltage of two signals via signal conversing circuits, thus tries to achieve the absolute value of local impedance | Z|, and after trying to achieve θ (ω), this is applicable to the correspondence table shown in table 1.
Table 1 is for representing the correspondence table comprising characteristic of impedance and moisture and oil content.
MCU150 prestores the correspondence table as table 1, and substitutes into calculated value in this, thus judge the moisture of skin and oil content comprise characteristic.
Table 1
[table 1]
| Impedance | Moisture | Oil content |
| >＝1.29MΩ | -5 | -4 |
| 550kΩ～1.28MΩ | -4 | -4 |
| 330～550KΩ | -3 | -4 |
| 230～320KΩ | -2 | -2 |
| 155～220KΩ | -1 | 0 |
| 91～154KΩ | 0 | 1 |
| 46～89KΩ | 0 | 1 |
| 22～45KΩ | 1 | 5 |
| 7.3～21KΩ | 2 | 5 |
| 3.1～7.2KΩ | 3 | 5 |
| 1.9～3.0KΩ | 4 | 4 |
| 1.4～1.8KΩ | 5 | 3 |
| <＝1.3KΩ | 5 | 2 |
On the other hand, body temperature measurement unit 120, as the unit of the temperature for detection assay place, can use the existing temperature sensor of DS18B20 and so on.
Body temperature measurement unit 120 provides measured temperature value to MCU150.
Such as, when the existing temperature sensor of DS18B20 and so on, in 750ms, temperature value is converted to 12bit numeral to export.
On the other hand, when contacting the skin of user, pH determination unit 130 detects in the potential difference relatively produced between electrode 131 and glass-membrane electrode 132.
As shown in Figure 2, pH determination unit 130 in longitudinally long shape, and is filled with electrolyte in the inside of pH determination unit 130.
On the other hand, as shown in Figure 8, pH determination unit 130 is provided with silver-silver chloride (AgCl/Ag) normal electrode 131 at a side, and another side of above-mentioned normal electrode 131 is provided with silver-silver chloride (AgCl/Ag) glass electrode 132.
Further, also with another side of above-mentioned normal electrode 131, that is, be adjacent to be provided with glass electrode film 133 with glass electrode 132.
On the other hand, pH determination unit 130 also has Hyblid Buffer Amplifier end 134 and level conversion end 135.
When the skin of user contacts with above-mentioned glass electrode film 133, Hyblid Buffer Amplifier end 134 is amplified in the potential difference produced between above-mentioned normal electrode 131 and glass electrode 132.
Further, the output voltage of above-mentioned Hyblid Buffer Amplifier end 134 is converted to the A/D converter input voltage range of MCU150 by level conversion end 135.
Relatively electrode 131 and glass electrode 132 can all use Ag/AgCI electrode.
If the skin of user contacts with glass electrode film 133, then relatively producing potential difference between electrode 131 and glass electrode 132.
The internal resistance of glass electrode film 133 is generally 106 ~ 109 Ω.
Due to this reason, the operational amplifier utilized in Hyblid Buffer Amplifier end 134 need ensure high access resistance, low entry electric current, and by protection, cover amplifier entrance leakage minimized.
Hyblid Buffer Amplifier end 134 and level conversion end 135 to amplify from having the voltage (-hundreds of mV ~ hundreds of mV) exported in the glass electrode 132 of high internal resistance and level conversion is the A/D converter input range (OV ~ 2.4V) of MCU150.
When measuring pH, the time reaching parastate is the several seconds more than, and therefore, the frequency band of amplifying return circuit is 1Hz.
On the other hand, input value to be converted to binary value by A/D converter and to utilize the pH interpolation based on 2 that binary value is converted to pH value by MCU150.
Now, can produce error between the pH measured and actual pH by pH interpolation, therefore, MCU150 improves accuracy rate by the amendment carried out based on ambient temperature.
Following table 2 is the temperature-compensating correspondence table representing the potential difference of electrode and the corresponding relation of pH value in T=25 DEG C.
Above-mentioned MCU150 prestores this correspondence table, and in correspondence table, be suitable for the signal received from level conversion end 135, thus judges the pH value corresponding with potential difference, and performs temperature-compensating.
Table 2
[table 2]
| Potential difference (mV) | Specified pH | Potential difference (mV) | Specified pH |
| 414.12 | 0.00 | -414.12 | 14.00 |
| 354.96 | l.00 | -354.96 | 13.00 |
| 295.80 | 2.00 | -295.80 | 12.00 |
| 236.64 | 3.00 | -236.64 | 11.00 |
| 177.48 | 4.00 | -177.48 | 10.00 |
| 118.32 | 5.00 | -118.32 | 9.00 |
| 59.16 | 6.00 | -59.16 | 8.00 |
| 0.00 | 7.00 | 0.00 | 7.00 |
By having pH determination unit 130 and the MCU150 of this structure, OpH to 12pH can be detected at the temperature of 20 DEG C to 40 DEG C.
On the other hand, referring to Fig. 9, the work process of smart mobile phone skin condition determinator of the present invention is observed.
Fig. 9 is the flow chart of the work process for illustration of smart mobile phone skin condition determinator of the present invention.
Shown in Fig. 9, first, if user utilizes USB cable to make after smart mobile phone skin condition determinator 100 of the present invention is connected with smart mobile phone 10 in mode as shown in Figure 3, opening power thus drive, then smart mobile phone skin condition determinator 100 starts to initialize.
Whether, in initialization procedure, smart mobile phone skin condition determinator 100 detects each set sensor and the state of photographic head, thus detect normal.
That is, the state that profit divides determination unit 110, body temperature measurement unit 120, pH determination unit 130 and shooting unit 140 is detected.
Now, in improper situation, will mistake be produced, and execute exception process.
On the contrary, when all sensors, photographic head all normally work, smart mobile phone skin condition determinator 100 waits for the control signal of smart mobile phone 10.
If user, while hold smart mobile phone skin condition determinator 100 of the present invention, applies control signal with the state of operation smart mobile phone 10 contacting skin,
Then smart mobile phone skin condition determinator 100 controls light source 142 to irradiate light, and controls camera module 141 and take.
Further, by oily moisture state, body temperature and pH that profit divides determination unit 110, body temperature measurement unit 120, pH determination unit 130 to measure skin respectively.
For judging oily moisture state, and the processing procedure of trying to achieve the MCU150 of pH is as shown in above-mentioned.
If shooting and measuring terminates, then smart mobile phone skin condition determinator 100 transmit the oily moisture state of the skin measured, body temperature and pH to smart mobile phone 10, also have captured by image, image.
On the other hand, smart mobile phone skin condition assay method of the present invention as above can embody with computer-readable code, thus can include in computer-readable recording medium.
Now, computer readable recording medium storing program for performing can comprise the medium of all kinds storing the data that can be read by computer system, as an example, can enumerate DVD-ROM, CD-ROM, hard disk, USB storage, flash memory etc.
On the other hand, the expression of including in recording medium not only comprises batch and includes in recording medium, and with the situation of packaged configuration circulation, and comprises and being provided by network with packet form, and includes the situation in recording medium.
On the other hand, although employ the expression of " smart mobile phone " in foregoing, as long as but can be carried by user, be connected with server in the mode not by space constraint, and be connected with smart mobile phone skin condition determinator of the present invention by usb communication mode, be just not limited to the hardware being called as " smart mobile phone ".
That is, should be interpreted as, except carrying the mobile phone of IOS or Android operation system OS, also comprise the concept of panel computer (Tablet), personal digital assistant (PDA, Personal Data Assistant) etc.
Although the present invention is illustrated with reference to accompanying drawing and embodiment as above, this is only illustration, as long as general technical staff of the technical field of the invention, just can understand and can implement various deformation and other equivalent embodiments accordingly.Therefore, protection scope of the present invention should be determined by the technological thought of appending claims, should not be limited to embodiment as above.
Utilizability in industry
The present invention is applicable to smart mobile phone peripheral equipment technical field.
Claims (7)
1. a smart mobile phone skin condition determinator, wherein, comprising:
Shooting unit (140), there is camera module (141) and light source (142), above-mentioned camera module (141) is for taking image, and above-mentioned light source (142) irradiates light to the front of above-mentioned camera module (141);
MCU (150), for controlling more than one that profit divides in determination unit (110), body temperature measurement unit (120), pH determination unit (130) or shooting unit (140); And
Usb hub controller (160), be connected with smart mobile phone (10) by USB mode, and transmit the image taken by above-mentioned shooting unit (140) and the skin condition measured value obtained from above-mentioned MCU (150) to above-mentioned smart mobile phone (10), and transmit the control signal from above-mentioned smart mobile phone (10) to above-mentioned MCU (150) or above-mentioned shooting unit (140)
Above-mentioned smart mobile phone skin condition determinator also comprises profit and divides determination unit (110), one or more in body temperature measurement unit (120) and pH determination unit (130), above-mentioned profit divides determination unit (110) for detecting when contacting the skin of user at the voltage drop that the both sides measuring pole plate (112) produce, above-mentioned body temperature measurement unit (120) is for the temperature in detection assay place, above-mentioned pH determination unit (130) is for detecting when contacting the skin of user in the potential difference relatively produced between electrode (131) and glass-membrane electrode (132),
Above-mentioned usb hub controller (160) is electrically connected with smart mobile phone (10), along with the control signal applied from above-mentioned smart mobile phone (10), above-mentioned light source (142) irradiates light to the front of above-mentioned camera module (141), above-mentioned camera module (141) then takes image, oil content and the moisture state of above-mentioned MCU (150) by being divided the determination unit voltage drop value that (110) are detected to calculate the skin of user by profit, or the pH value of the skin of user is calculated by the potential difference detected by above-mentioned pH determination unit (130), or the temperature in the mensuration place provided by body temperature measurement unit (120) is provided.
2. smart mobile phone skin condition determinator according to claim 1, wherein, above-mentioned profit divides determination unit (110) to comprise:
Harmonic oscillator (111), for generation of harmonic wave;
A pair mensuration pole plate (112) in opposite directions, is connected with the harmonic wave generation terminal of above-mentioned harmonic oscillator (111), and carries out ground connection via the first fixed resistance (113); And
Amplifier element (114), the voltage drop that the two side ends being amplified in said determination pole plate (112) produces and the voltage drop value produced in the front and back of the first fixed resistance, and export to MCU (150).
3. smart mobile phone skin condition determinator according to claim 2, wherein,
Above-mentioned MCU (150) calculates local impedance by the value inputted from above-mentioned amplifier element (114) is substituted into mathematical expression 1, and the intrinsic correspondence table of the profit calculated local impedance being applicable to store judges moisture content and the oil content characteristic of the skin of user
[mathematical expression 1 :]
|Z|＝(|Uz|/|UR|)*R1
θ(ω)＝arccos((|U|2-|Uz|2-|UR|2)/(2*|UR|*|Uz|))
Wherein, Z is for measuring the local impedance of the skin histology in pole plate (112), the Transfer function in the frequency domain that θ (ω) is Z, Uz is the voltage characteristic measuring pole plate (112), and Ur is the voltage characteristic of the first fixed resistance (123).
4. smart mobile phone skin condition determinator according to claim 1, wherein,
The inside of above-mentioned pH determination unit (130) is filled with electrolyte,
And above-mentioned pH determination unit (130) comprising:
Silver-silver chloride (AgCl/Ag) normal electrode (131), is arranged at a side of above-mentioned pH determination unit (130);
Silver-silver chloride (AgCl/Ag) glass electrode (132), is arranged at another side of above-mentioned normal electrode (131);
Glass electrode film (133), to be arranged at another side of above-mentioned normal electrode (131) with above-mentioned glass electrode (132) mode spaced apart by a predetermined distance;
Hyblid Buffer Amplifier end (134), when the skin of user contacts with above-mentioned glass electrode film (133), above-mentioned Hyblid Buffer Amplifier end (134) is amplified in the potential difference produced between above-mentioned normal electrode (131) and glass electrode (132); And
Level conversion end (135), is converted to the input voltage range of the second A/D converter (136) by the output voltage from above-mentioned Hyblid Buffer Amplifier end (134), and exports to MCU (150).
5. smart mobile phone skin condition determinator according to claim 4, wherein, above-mentioned MCU (150), by the signal received from above-mentioned level conversion end (135) being applicable to the temperature-compensating correspondence table stored, judges the pH value corresponding with potential difference.
6. a smart mobile phone skin condition determinator, wherein, comprising:
Shell (170), there is front face (171) and photographic head assembly space portion (172), above-mentioned front face (171) is formed at the side end of shell (170), and above-mentioned photographic head assembly space portion (172) is formed with side opening in the mediad from above-mentioned front face (171) or in the mode of predetermined length depression;
Profit divides determination unit (110), the mode being exposed to the front face (171) of above-mentioned shell (170) to measure pole plate (112) is assembled, when contacting the skin of user, above-mentioned profit divides determination unit (110) to detect the voltage drop produced in the both sides of said determination pole plate (112);
Body temperature measurement unit (120), assembles in the mode of the front face (171) being exposed to above-mentioned shell (170), and when contacting the skin of user, above-mentioned body temperature measurement unit (120) detects the body temperature of user;
Camera module (141), is assemblied in above-mentioned photographic head assembly space portion (172), for taking image towards above-mentioned front face (171);
Light source (142), is arranged at the side of above-mentioned camera module (141), and irradiates light towards above-mentioned front face (171);
MCU (150), being arranged at the inside of above-mentioned shell (170), dividing determination unit (110), above-mentioned body temperature measurement unit (120), camera module (141) or light source (142) for controlling above-mentioned profit;
Usb hub controller (160), there is the socket (161) of the side being exposed to above-mentioned shell (170), for being connected with USB, by the USB cable be connected with above-mentioned socket (161), be connected with smart mobile phone (10) by USB mode, and transmit the image taken by above-mentioned camera module (141) and the skin condition measured value obtained from above-mentioned MCU (150) to above-mentioned smart mobile phone (10), and transmit the control signal from above-mentioned smart mobile phone (10) to above-mentioned MCU (150) or above-mentioned camera module (141).
7. a smart mobile phone skin condition determinator, wherein, comprising:
Shell (170), in the shape that extend long to direction, side, there is front face (171), back part (172) and photographic head assembly space portion (173), above-mentioned front face (171) is formed at the side end of above-mentioned shell (170), above-mentioned back part (172) is formed at the opposite side end of above-mentioned shell (170), and above-mentioned photographic head assembly space portion (173) is formed with side opening in the mediad from above-mentioned back part (172) or in the mode of predetermined length depression;
Profit divides determination unit (110), the mode being exposed to the front face (171) of above-mentioned shell (170) to measure pole plate (112) is assembled, when contacting the skin of user, above-mentioned profit divides determination unit (110) to detect the voltage drop produced in the both sides of said determination pole plate (112);
Body temperature measurement unit (120), assembles in the mode of the front face (171) being exposed to above-mentioned shell (170), and when contacting the skin of user, above-mentioned body temperature measurement unit (120) detects the body temperature of user;
PH determination unit (130), length direction along above-mentioned shell (170) is assemblied in the inside of above-mentioned shell (170), and be configured to the front face (171) that glass electrode film (133) is exposed to above-mentioned shell (170), when contacting the skin of user, detect in the potential difference relatively produced between electrode (131) and glass-membrane electrode (132);
Camera module (141), is assemblied in above-mentioned photographic head assembly space portion (173), for taking image towards above-mentioned back part (172);
Light source (142), is arranged at the side of above-mentioned camera module (141), and irradiates light towards above-mentioned back part (172);
MCU (150), be arranged at the inside of above-mentioned shell (170), and control above-mentioned profit and divide determination unit (110), above-mentioned body temperature measurement unit (120), pH determination unit (130), camera module (141) or light source (142);
Usb hub controller (160), there is the socket (161) of the side being exposed to above-mentioned shell (170), above-mentioned socket (161) is for being connected with USB cable, and the USB cable by being connected with above-mentioned socket (161), be connected with smart mobile phone (10) by USB mode, and transmit the image taken by above-mentioned camera module (141) and the skin condition measured value obtained from above-mentioned MCU (150) to above-mentioned smart mobile phone (10), and transmit the control signal from above-mentioned smart mobile phone (10) to above-mentioned MCU (150) or above-mentioned camera module (141).
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| KR10-2012-0150947 | 2012-12-21 | ||
| KR1020120150947A KR101274303B1 (en) | 2012-12-21 | 2012-12-21 | Skin condition inpection device for smartphone |
| PCT/KR2013/009516 WO2014098363A1 (en) | 2012-12-21 | 2013-10-24 | Skin condition measuring device for smartphone |
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| CN104883970A true CN104883970A (en) | 2015-09-02 |
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| CN201380066718.4A Pending CN104883970A (en) | 2012-12-21 | 2013-10-24 | Skin condition measuring device for smartphone |
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| KR (1) | KR101274303B1 (en) |
| CN (1) | CN104883970A (en) |
| WO (1) | WO2014098363A1 (en) |
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| Publication number | Publication date |
|---|---|
| KR101274303B1 (en) | 2013-06-13 |
| WO2014098363A1 (en) | 2014-06-26 |
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