CN109864702B - Skin detection and maintenance system and method - Google Patents

Abstract

A skin detection and maintenance system and method, the skin detection and maintenance system can provide different kinds of detection light such as white light or UV light, etc., can obtain the original image of the user's skin when using the white light to carry on the skin detection, the original image of the user's skin can further obtain the condition of the user's skin such as skin pore size or speckle depth, etc. through analyzing; if the UV light is used for skin detection, whether the skin of the user has metal residue or skin acne can be known, and a plurality of skin conditions can be obtained by using the skin detection and maintenance system, so that the follow-up beauty consultation is facilitated.

Description

Skin detection and maintenance system and method

Technical Field

The invention relates to the field of skin detection and maintenance, in particular to a skin detection and maintenance system and a skin detection and maintenance method capable of detecting, analyzing and maintaining skin conditions and skin oil-water content of a user.

Background

Under the condition of low economy, the medical beauty market still has a certain growth rate at present, particularly the condition of facial complexion, which shows that beauty is the nature of people, therefore, equipment related to medical science and beauty still has certain development at present.

Currently, commercially available skin beauty inspection instruments have poor resolution on skin reflection images, and most of the skin beauty inspection instruments provide a single kind of skin conditions such as pore size, rough skin or skin moisture content to users and instrument operators, so if a plurality of skin conditions are to be obtained, a plurality of inspection instruments are required to be used simultaneously, which causes troubles in beauty consultation.

Disclosure of Invention

To solve the above-mentioned problems, the main objective of the present invention is to provide a skin detection and maintenance system, which includes a skin detection device and a receiving device, and is characterized in that: the skin detection device is provided with an LED lamp panel, and a plurality of white light LED bulbs and a plurality of UV LED bulbs are arranged on the LED lamp panel to provide detection light required by the implementation of the skin detection device; the first polaroid is arranged on the LED lamp panel and used for filtering reflected light reflected when the detection light is projected to the face of a user to obtain a polarized light signal; the lens module is electrically connected with the LED lamp panel and used for receiving the polarized light signal and converting the polarized light signal into an electric signal; the circuit mainboard receives the electrical signal, converts the electrical signal into a skin original image and sends the skin original image to the receiving device through the wireless transmission module; and the receiving device receives the skin original image and displays the skin original image by utilizing the mobile application program.

In another preferred embodiment of the present invention, a skin detection and maintenance method is provided, which comprises providing a light source to detect the skin detection device by using an LED lamp panel in the skin detection device through a plurality of white light LED bulbs and a plurality of UV LED bulbs in the LED lamp panel; reflected light reflected when the detection light is projected onto the face of a user can be filtered by a first polaroid arranged on the LED lamp panel to obtain a polarized light signal; after obtaining the polarized light signal, the lens module connected with the end of the LED lamp panel is used for receiving the polarized light signal and converting the polarized light signal into an electric signal; and the circuit main board processes the electric signal into a skin original image through the signal processing module after receiving the electric signal and transmits the skin original image to the wireless transmission module, and the wireless transmission module sends the skin original image to the receiving device, wherein the action application program of the receiving device is used for displaying the skin original image.

In summary, the skin detection and maintenance system and method of the present invention utilize the application of the skin detection device, the receiving device and the back-end device, and analyze and compare the original image of the skin of the user and the oil-water analysis frequency, respectively, so that various information related to the skin condition of the user, such as pore size, speckle depth, texture depth, skin roughness, wrinkle depth, water content, oil content, softness, etc., can be obtained, and the skin detection device is further equipped with a UV LED bulb, so that whether the skin of the user has metal residue, pore blockage, cutin accumulation, etc., can be detected and known in real time, and related beauty advice of the user can be provided according to the obtained information through related personnel, such as a beauty therapist, etc., so as to improve the beauty consultation efficiency.

Drawings

FIG. 1 is a block diagram of a skin test care system according to an embodiment of the present invention.

Fig. 2A is an exploded view showing the overall structure of a skin detection device according to an embodiment of the present invention.

FIG. 2B is a partially enlarged exploded view of a skin detection device according to an embodiment of the present invention.

FIG. 2C is an enlarged exploded view of the oil and water detecting unit in the skin detecting device according to an embodiment of the present invention.

FIG. 3A is a system diagram illustrating a skin test device according to one embodiment of the present invention.

FIG. 3B is a diagram illustrating an architecture of an oil/water detecting unit in the skin detecting device according to an embodiment of the present invention.

FIGS. 4A-4E are diagrams illustrating the imaging effect of configuring a polarizer according to an embodiment of the present invention.

FIG. 5A is a charging/discharging circuit diagram illustrating oil and water detection of a user's skin according to an embodiment of the present invention.

Fig. 5B is a schematic diagram illustrating a charging/discharging cycle of a capacitor according to an embodiment of the invention.

FIG. 6A is a flow chart illustrating operation of a skin detection device according to an embodiment of the present invention.

FIG. 6B is a flowchart illustrating an analysis procedure of an original image of a user's skin according to an embodiment of the present invention.

FIG. 6C is a flowchart of an analysis procedure showing the oil-water content of skin according to an embodiment of the present invention.

Fig. 7A is a diagram illustrating an original-to-black comparison of sweat pores in a skin image of a user according to an embodiment of the present invention.

FIG. 7B is a diagram illustrating an original-to-black contrast of a texture of a skin image of a user according to an embodiment of the present invention.

FIG. 7C is a diagram illustrating an original-to-black contrast of a patch of a user's skin image, according to an embodiment of the present invention.

FIG. 7D is a diagram illustrating an original-to-black comparison of wrinkles in a user's skin image according to an embodiment of the present invention.

FIG. 7E is a diagram showing the original and black-and-white UV detection of skin metal fluorescence in accordance with one embodiment of the present invention.

Fig. 7F is a diagram showing the original and black colors of UV detection of pore blockage and keratose stacking, according to an embodiment of the present invention.

FIG. 8 is a flowchart illustrating steps performed by a skin test care system according to an embodiment of the present invention.

Detailed Description

In order to make the skin detection and care system and the method thereof provided by the present invention fully understood by those skilled in the art, the embodiments and examples thereof are provided for illustration. In addition, the following embodiments do not additionally describe the basic principles of the present invention, such as optics, electricity, communication, image processing, etc.; however, the inventive features and embodiments of the skin detection device provided by the present invention are described in the following, for example, the components are connected to each other. In reading the embodiments provided in the present invention, please refer to the drawings and the following description, wherein the shapes and relative sizes of the components in the drawings are only used for assisting understanding of the embodiments, and are not used for limiting the shapes and relative sizes of the components, so as to describe in advance.

First, please refer to fig. 1. FIG. 1 is a block diagram of a skin test care system according to an embodiment of the present invention. In fig. 1, the skin examination and care system is composed of a skin examination device 1, a receiving device 2, and a backend device 3, wherein the receiving device 2 and the skin examination device 1 are connected by wireless communication such as bluetooth or WIFI. The skin detection device 1 includes an LED lamp panel 11, a lens module 14, a wireless transmission module 155 and a signal processing module 156, wherein the LED lamp panel 11, the lens module 14, the wireless transmission module 155 and the signal processing module 156 are electrically connected to each other. The receiving device 2 has a preview unit 211 and a function menu 22, and executes the corresponding functions of the preview unit 211 and the function menu 22 through an application (not shown in the figure), in addition, the preview unit 211 further includes a shooting unit 212 and an enlarging unit 213, and a user can use the shooting unit 212 to obtain a skin original image to be detected, and view and watch the skin original image through the enlarging unit 213. In the embodiment, the receiving device 2 may be a mobile communication device, such as a tablet computer, a smart phone, or a wearable device, such as iwatch or samsung Gear. In the preferred embodiment of the present invention, a tablet computer or a smart phone is used as the receiving device 2. In the embodiment, the receiving device 2 and the backend device 3 are connected through wireless communication methods such as WIFI or a network, where examples of the network include a Local Area Network (LAN), a Wide Area Network (WAN), a Virtual Private Network (VPN), a wireless network (e.g., 802.11) and/or a cellular network, such as a third generation mobile communication technology (3rd-generation,3G) and/or Long Term Evolution (LTE), a bluetooth network, a home automation wireless network (z-wave), a group cellular wireless sensing network (ZigBee), other types of networks, or a combination thereof, but are not limited thereto; in addition, the back-end device 3 may be a server or a cloud for storing the original skin image of the user, and the user may also download the original skin image through an application program and view the original skin image by using the preview unit 211, and when the user has a skin condition problem, the user may share data through a doctor or a cosmetic artist and discuss the skin condition problem.

Please continue with fig. 1. In fig. 1, the skin detecting and caring system further includes an oil-water detecting unit 130, wherein the oil-water detecting unit 130 is used for directly contacting with the skin of the user to obtain the oil-water content on the skin of the user and converting the oil-water content into an impedance signal. Then, the oil-water detecting unit 130 transmits the impedance signal to the circuit board 15. Then, the signal processing module 156 is used to process the impedance signal to obtain the oil-water analysis frequency of the skin of the user.

Please refer to fig. 2A, fig. 2B and fig. 3A; wherein FIG. 2A is an exploded view of the present skin sensing device configuration; FIG. 2B is an enlarged, fragmentary, exploded view of the present skin sensing device; fig. 3A is an architecture diagram of the present skin test device. First, as shown in fig. 2A, the skin detection apparatus 1 includes: the LED lamp panel 11 is configured with a plurality of white LED bulbs 111 and a plurality of UV LED bulbs 112 on the LED lamp panel 11, the white LED bulbs 111 and the UV LED bulbs 112 are used for providing a detection light source required by the skin detection device 1 during implementation, and a hollow area 113 is disposed at a central position of the LED lamp panel 11. In one embodiment, the number of the white LED bulbs 111 and the number of the UV LED bulbs 112 are 8. In addition, the white LED bulb 111 and the UV LED bulb 112 are disposed around the hollow region 113 to form concentric circles, wherein the white LED bulb 111 is disposed at the periphery of the concentric circles, and the UV LED bulb 112 is disposed near the middle ring of the concentric circles. According to the above configuration, the white LED bulb 111 is disposed at the periphery of the concentric circles for obtaining the original image of the skin of the user, and the UV LED bulb 112 is disposed near the middle circle of the concentric circles for detecting whether the skin surface of the user has metal residue, pore blocking, and horny layer accumulation, for example, if the metal residue occurs on the skin surface, when the skin of the user is irradiated through the UV LED bulb 112, the light reflected by the skin of the user will show fluorescence, thereby informing the user that the products used on the face, such as cosmetics, care products, or cleaning products, may contain metal components or the user may not completely clean the face, and after the cleaning, some face products remain on the skin of the face, and these remaining face products contain metal components and are irradiated through the UV LED lamp, the resulting reflected light appears as fluorescence. Similarly, when the UV LED bulb 112 illuminates the skin of the user and the light reflected from the skin of the user appears as a red spot, it is an indication that bacteria have grown on the skin and blocked the pores. When the UV LED bulb 112 illuminates the user's skin, the reflected light appears as a white spot, which is indicative of the presence of a build-up of cutin on the user's skin, which may block the pores.

Please continue to refer to fig. 2A. The first polarizer 12 of the present invention is a flat plate, and a plurality of through holes 121 corresponding to the number of the white LED bulbs 111 are disposed at the edge of the first polarizer 12, wherein the number of the through holes 121 on the first polarizer 12 can be adjusted according to the number of the white LED bulbs 111, and the present embodiment is not limited thereto. It is obvious that the through holes 121 of the first polarizer 12 mainly allow the detection light generated by the white LED bulb 111 to pass through and project onto the skin of the user; when the detection light generated by the white LED light bulb 111 irradiates the face of the user, scattering (scattering) of the light source may be caused because the skin on the face of the user is not a flat surface or the skin has grease or water on the surface; therefore, when the scattered light reflected back through the skin passes through the first polarizer 12, the first polarizer 12 filters the reflected scattered light to obtain polarized light signals, so that the resolution of the skin can be improved.

In addition, in order to provide better resolution of the skin, the present invention can be adjusted by the number of the polarizers disposed. In a preferred embodiment of the present invention, in order to further control or adjust the detected light intensity generated by the white LED bulb 111, a second polarizer 13 is further disposed on the skin-near side of the first polarizer 12, as shown in fig. 2B. At the center of the second polarizer 13, through holes 131 are formed to correspond to the hollow area 113 of the LED lamp panel 11, and through holes 132 corresponding to the number of the white LED bulbs 111 are also disposed between the edge of the second polarizer 13 and the through holes 131, and the number of the through holes 132 is changed to shield the detection light generated by the white LED bulbs 111, so as to adjust the brightness of the skin during imaging and improve the resolution. In another preferred embodiment, the number of the through holes 132 is 4, and the brightness generated by the detecting light is increased or decreased along with the number of the through holes 132, so that among the detecting light generated by 8 white LED bulbs 111, 4 detecting light generated by the white LED bulbs 111 can be irradiated onto the skin through the through holes 132, and the other 4 detecting light generated by the white LED bulbs 111 can be irradiated onto the skin only after passing through the second polarizer 13; then, when the detection light generated by the white LED bulb 111 irradiates the skin through the second polarizer 13 and generates the reflection light, the main reflection light passes through the through hole 131 of the second polarizer 13, and then passes through the first polarizer 12 to filter the scattered light, and then the imaging is performed on the lens module 14. It is apparent that the second polarizing plate 13 is provided to control the brightness of the detection light emitted from the white LED bulb 111, and the additional second polarizing plate 13 may be disposed on one side end near the upper cover 19. In the present invention, the material of the first and second polarizing plates 12 and 13 may be a material having directionality of polyvinyl Alcohol (PVA), which is not limited in the present embodiment.

Then, please continue to refer to fig. 2A. The lens module 14 is electrically connected to the LED lamp panel 11 for receiving the polarized light signal. Further, the lens module 14 is composed of a camera unit 141 and a flexible board 142, and the camera unit 141 is sleeved in the hollow area 113 of the LED lamp panel 11, so that the lens module 13 is electrically connected to the LED lamp panel 11, wherein the camera unit 141 includes an Image Sensor (CMOS Image Sensor) formed by CMOS; in addition, the camera unit 141 is soldered on the flexible board 142, the flexible board 142 is used for fixing and connecting the camera unit 141, and the flexible board 142 transmits the electric signal generated by the camera unit 141 to the circuit main board 15. When the camera unit 141 of the lens module 14 receives the polarized light signal, the camera unit 141 can convert the received polarized light signal into an electrical signal by a Complementary Metal Oxide Semiconductor (CMOS), and then transmit the electrical signal to the circuit board 15 through the flexible printed circuit 142 to process the image signal.

Please refer to fig. 2A and fig. 2B. The connector 151 is electrically connected to the flexible board 142 of the lens module 14 and the circuit board 15; in addition, a light source control switch 152, a camera control switch 153, a power switch 154, a wireless transmission module 155 and a signal processing module 156 are also arranged on the circuit main board 15; it is obvious that the light source control switch 152, the camera control switch 153 and the power switch 154 are connected to the circuit on the circuit board 15, wherein the power switch 154 can be connected to the lithium battery 17 disposed on the other side of the circuit board 15 through the connector 151. The light source control switch 152 is connected to the UV LED bulb 112; the camera control switch 153 is connected to the lens module 14. In addition, the wireless transmission module 155 and the signal processing module 156 are disposed in the circuit board 15 and connected to each other.

Please refer to fig. 2A and fig. 2B. The charging board 16 is electrically connected to the lithium battery 17, and the charging board 16 can perform a charging operation, so that the charging operation can store power in the lithium battery 17 for providing the power required by the skin detection device 1 in use, wherein the lithium battery 17 is disposed on the circuit board 15 and provides the power required by the skin detection device 1 in use.

Please refer to fig. 2A and fig. 2B. The lower cover 18 has a receiving space 181 capable of loading the LED lamp panel 11, the lens module 14, the circuit board 15, the charging board 16, and the lithium battery 17. The upper cover 19 is connected or fastened with the lower cover 18, and an upper cover decoration ring 191 and a plurality of keys 192 are additionally arranged on the upper cover 19, wherein the keys 192 are respectively contacted with or electrically connected with the light source control switch 152, the camera control switch 153 and the power switch 154, so that an operator can start the skin detection device 1 to detect the skin of a user, and can select required detection light according to different purposes when the skin detection device 1 is implemented, and the camera control switch 153 is used for starting the camera module 14 to obtain an original image of the skin of the user. The LED lampshade 20 is arranged at the front ends of the upper cover 19 and the lower cover 18 and is used for assisting the upper cover 19 and the lower cover 18 to be jointed, meanwhile, the jointed LED lampshade 20 can form a circular opening 21 at the open end, and the circular opening 21 can contact the skin of a user; in the preferred embodiment, the LED lampshade 20 is further provided with a fixing unit 201 to make the connection between the LED lampshade 20 and the lower cover 18 and the upper cover 19 more stable. In this embodiment, the fixing unit 201 can be a protrusion that can be easily combined with the groove in the upper cover 19, so that the assembly of the LED lamp cover 20 with the lower cover 18 and the upper cover 19 is more convenient, accurate and stable.

Finally, referring to the content of fig. 2A, the skin detection device is further configured with a tail cover portion 120, the tail cover portion 120 is configured at the rear ends of the upper cover 19 and the lower cover 18, the tail cover portion 120 includes a tail cover decoration ring 1201, a tail cover 1202 and a tail cover soft plug 1203, the tail cover soft plug 1203 is configured on the tail cover 1202, the tail cover 1202 is connected with the tail cover decoration ring 1201, and the tail cover portion 120 is used for fixing the combination between the upper cover 19 and the lower cover 18 in the skin detection device 1, so that the skin detection device 1 is more firm when in use.

Next, please refer to fig. 3A, which is a system architecture diagram of the skin detecting device of the present invention. First, as shown in fig. 3A, the skin detection device 1 is composed of an LED lamp panel 11, a first polarizer 12, a lens module 14 and a circuit board 15, wherein a connector 151 is electrically connected to the circuit board 15 and the flexible board 142 on the lens module 14; in addition, a light source control switch 152, a camera control switch 153, a power switch 154, a wireless transmission module 155 and a signal processing module 156 are arranged on the first surface of the circuit main board 15; it is obvious that the light source control switch 152, the camera control switch 153 and the power switch 154 are electrically connected to the circuit board 15, and when the power switch 154 is turned on by a user, the white LED bulb 111 and the lens module 14 on the LED lamp panel 11 are turned on, so that when the user covers the circular opening 21 of the LED lampshade 20 of the skin detection device 1 on the skin, the lens module 14 can obtain the image of the skin by the light source provided by the white LED bulb 111. The light source control switch 152 is connected with the UV LED bulb 112 and is used for switching the white light LED bulb 111 into the UV LED bulb 112; for example, if the user determines whether there is metal left on the skin surface by using the facial product, the light source control switch 152 may be activated, and at this time, the circuit switches the power to the UV LED bulb 112, so that the UV LED bulb 112 irradiates the skin, thereby knowing whether the metal left on the skin of the user and the pore block are present. The camera control switch 153 is electrically connected to the lens module 14 for determining whether to take a picture of the skin seen by the skin detection device 1; if it is determined to perform the photographing, the photographing control switch 153 is pressed, and the skin detection apparatus 1 finishes the photographing of the skin area currently seen by the lens module 14. In addition, since the wireless transmission module 155 and the signal processing module 156 disposed on the circuit board 15 are connected to each other, when the user presses the camera control switch 153 to complete the shooting of the skin area seen by the lens module 14, the signal processing module 156 can convert the electrical signal from the lens module 14 into the original image signal of the skin of the user; then, the original image signal of the skin of the user is further transmitted to the wireless transmission module 155, and the wireless transmission module 155 transmits the original image of the skin of the user to the receiving device 2; finally, the application program installed in the receiving device 2 processes the original image of the skin of the user.

Please continue with fig. 3A. According to the above description, in a preferred embodiment, the receiving device 2 can be a tablet computer or a smart phone, and the image transmission can be performed in a wireless communication manner such as bluetooth or WIFI, wherein the light source control switch 152 enables an operator to switch between the white LED bulb 111 and the UV LED112 bulb, so that the operator can use appropriate detection light according to the purpose of use during the implementation of the skin detection device 1, the power switch 154 is used to control the start-up of the skin detection device 1, and the camera control switch 153 is used to control the shooting of the lens module 14, so that the operator can shoot the skin of the user to obtain the original image of the skin of the user.

Here, further explaining the imaging efficacy when the skin test device 1 is provided with a polarizer in the present invention. First, if the skin inspection device 1 is not equipped with any polarizer, the 8 white LED lamps 111 directly illuminate the skin of the user, for example, the user's face, and reflected light is generated on the skin of the user, because the reflected light generated from the user's face is not filtered, and directly enters the lens module 14 for imaging, which causes the original image of the skin of the user obtained by the lens module 14 to appear in a state of over-white background and poor image resolution, and the imaging result is as shown in fig. 4A, the standard deviation of three primary colors is too small (for example, the red Std Dev value is only 2.373, the green Std Dev value is only 2.776, and the blue Std Dev value is only 9.168), so that the color and noise distribution of the three primary colors are not uniform, and the gray scale value is too large to cause the brightness to be over-bright, which causes the resolution of the original image of the skin of the user to be poor and the real condition of the skin of the user cannot be presented, and subsequent analysis of the skin condition of the user is not easy. However, in the embodiment of the skin detection apparatus 1 of the present invention, the above-mentioned problems of the user's skin original image showing too white background and poor image resolution can be solved.

First, in an embodiment of the present invention showing an imaging effect, when the second polarizer 13 is disposed on the side of the LED lamp panel 11 close to the skin, only 4 (i.e. half of the original) of the detection lights generated by the 8 white LED bulbs 111 can be irradiated onto the skin through the through hole 132, and then when the reflected lights pass through the second polarizer 13, the main reflected lights pass through the through hole 131, and part of the scattered lights generated after being reflected by the skin can be filtered by the second polarizer 13, so that the intensity of the light source entering the lens module 14 is reduced, and thus the resolution of the original image of the skin of the user at this time can be increased, as shown in fig. 4B, although the standard deviation of the three primary colors is improved (for example, the red Std Dev value is 4.830, the green Std Dev value is 7.768, and the blue Std Dev value is 12.018), however, the color and noise ratio of the three primary colors are still not uniform, and the gray scale value is still too large and the brightness is too bright, so that the resolution of the original image of the skin of the user is still not good, the real situation of the skin of the user cannot be presented, and the subsequent analysis of the skin condition of the user is not easy to perform.

Then, to solve the problem of poor resolution of the original image of the skin of the user (i.e. the background of the image is still too white) caused by too bright gray scale value, the invention provides another preferred embodiment, in the skin inspection apparatus 1, a first polarizer 12 is disposed on the side of the LED lamp panel 11 close to the skin, so that the detection light generated by the white LED lamp 111 can be irradiated onto the skin through a plurality of through holes 121 around the first polarizer 12, and then, when all the reflected light passes through the first polarizer 12, the scattered light therein is filtered by the first polarizer 12 before being imaged by the lens module 14, and the imaging result is as shown in fig. 4C, in which the standard deviation of the three primary colors approaches a median value (for example, the stdddev value of red is 9.019, the stdddev value of green is 11.014, and the stdddev value of blue is 11.208), wherein the color and the ratio distribution of blue and green in the three primary colors are relatively uniform, but the color and noise ratio distribution of red is less uniform; it is obvious that the problem of excessive gray scale is improved, and at this time, the skin detection apparatus 1 can obtain the original skin image that meets the real skin condition of the user, and can perform the subsequent analysis of the skin condition of the user. However, the background of the image is still too white in the image.

Next, in order to further improve the situation that the background of the original image of the skin of the user is too white, another preferred embodiment of the present invention is to arrange the first polarizer 12 and the second polarizer 13 in the skin inspection device 1, and the arrangement positions of the first polarizer 12 and the second polarizer 13 are shown in fig. 2B. Firstly, the second polarizer 13 is disposed on the side of the LED lamp panel 11 close to the skin or close to the LED lampshade 19, the first polarizer 12 is disposed between the second polarizer 13 and the LED lamp panel 11, and the first polarizer 12 and the second polarizer 13 are disposed in an overlapping manner; in a preferred embodiment, when the polarization rotation angle between the first polarizer 12 and the second polarizer 13 is configured to be 0 degree or 180 degrees, i.e. the molecular arrangement of the constituent materials of the two polarizers is horizontal, at this time, the light reflected from the skin passes through the through hole 131 of the second polarizer 13, and then passes through the first polarizer 12, the first polarizer 12 can filter out the scattered light reflected by the skin, so that the scattered light entering the lens module 14 is filtered out, and then the lens module 14 performs imaging, the imaging result is shown in fig. 4D, and the standard deviation of the three primary colors is more approximate to a median value (for example, the red Std Dev value is 11.184, the green Std Dev value is 12.717, and the blue Std Dev value is 12.413), so that the color distribution in the three primary colors is more uniform; it is obvious that although the noise of the three primary colors in fig. 4D is still larger, the problem of too large gray scale value is improved, and the skin detection apparatus 1 can obtain the original skin image corresponding to the real skin condition of the user, and can perform the subsequent analysis of the skin condition of the user.

According to the above paragraph, in a preferred embodiment, when the polarization rotation angle between the first polarizer 12 and the second polarizer 13 is configured to be 90 degrees orthogonal (orthogonal), that is, the molecular arrangement of the constituent materials of the two polarizers is vertical, at this time, after the light reflected from the skin mainly passes through the through hole 131 of the second polarizer 13, the light passes through the first polarizer 12, the first polarizer 12 can filter out the scattered light reflected by the skin, so that the scattered light entering the lens module 14 is filtered out, and then the imaging is performed on the lens module 14, the imaging result is as shown in fig. 4E, wherein the standard deviation of the three primary colors is close to the median (for example, the Std Dev value of red is 8.694, the Std Dev value of green is 9.048, and the Std Dev value of blue is 9.088), so that the color distribution of blue and green among the three primary colors is relatively uniform, and the color and noise ratio distribution of red is much more uniform than that of FIG. 4D; it is obvious that the problem of excessive gray scale has been improved, and at this time, the skin detection apparatus 1 can obtain the original skin image that meets the real skin condition of the user, and can perform the subsequent analysis of the skin condition of the user.

According to the present invention, it can be seen from the imaging effect of the original image of the skin of the user obtained by configuring the polarizer in the skin inspection apparatus 1, when the first polarizer 12 is configured in the skin inspection apparatus 1, the problem of the excessive gray scale value can be improved, so that the original image of the skin of the user obtained by the skin inspection apparatus 1 can be used for analyzing the skin condition of the user at the time, and particularly, after the first polarizer 12 and the second polarizer 13 are configured in combination, the original image of the skin of the user obtained by the skin inspection apparatus 1 can be used for analyzing the skin condition of the user at the time no matter whether the rotation angle of the first polarizer 12 and the second polarizer 13 is 0 degree or 180 degrees or 90 degrees orthogonal (orthogonal). At this time, the summary of the imaging effect of the configured polarizer is summarized in table 1. Table 1 is as follows:

TABLE 1

The skin detection device 1 of the present invention can provide two different types of detection light, namely white light and UV light, so that two types of information related to the skin condition of the user can be obtained; one type of information is to analyze the original image of the skin of the user by a related analysis program, and based on the original image, the original image of the skin of the user is processed by an application program in the receiving device 2, so as to further obtain a plurality of analysis results related to the skin condition of the user, which can be provided to the user and the operator, so as to evaluate the skin condition of the user, such as spots, textures, pores and/or wrinkles; another type of information is to examine whether or not metallic residues of cosmetics appear on the skin of the user, and if metallic residues appear on the skin, such as mercury metal, the skin of the user will fluoresce after being irradiated with UV light, thereby informing the user whether or not the cosmetics used by the user contain metallic components. In addition, acne and cutin of pores on the skin can be shown under UV light irradiation.

In order to make the skin detection device provided by the present invention have the function of obtaining the oil-water content of the skin of the user, the skin detection device of the present invention may further be configured with an oil-water detection unit 130. For an embodiment of the oil-water detecting unit 130, please refer to fig. 2C and fig. 3B; wherein FIG. 2C is an enlarged exploded view of the oil-water detecting unit; fig. 3B is a structural diagram of the oil-water detecting unit in the skin detecting device. First, as shown in fig. 2C, the oil/water detecting unit 130 is disposed at the front end (i.e., the end contacting the skin, the opposite side of the tail cover portion 120) of the skin detecting device 1, and is connected to the LED lamp housing 19. As shown in fig. 2C, the oil-water detecting unit 130 includes an oil-water detecting needle 1301, a front cover 1302, a front cover decoration ring 1303 and a dust cover 1304; the front cover 1302 is provided with a receiving hole 1305, the oil-water detecting needle 1301 can be fixed in the front cover 1302 by the receiving hole 1305, and the oil-water detecting needle 1301 is connected with a receiver 1306 arranged on the front cover decoration ring 1303; in addition, the adaptor 1306 is configured with a connection circuit board (not shown) for connecting with the connector 151 on the circuit board 15, so that the oil-water probe 1301 contacts the skin of the user, and the oil-water content on the skin of the user is converted into an impedance signal, which is transmitted to the circuit board 15. Then, the signal processing module 156 disposed in the circuit board 15 processes the skin oil-water impedance signal of the user to obtain the skin oil-water analysis frequency of the user; then, the wireless transmission module 155 transmits the skin oil-water analysis frequency of the user to the receiving device 2, as shown in fig. 3B. Then, the application program arranged in the receiving device 2 compares the skin oil-water analysis frequency of the user to obtain an analysis result, and finally, the receiving device 2 presents the analysis result to the user and the operator; for example on a display of the receiving apparatus 2. In the preferred embodiment, the number of the oil-water detecting needles 1301 is two, and the activation of the oil-water detecting needles 1301 is also controlled by the power switch 154. In addition, the dust cover 1304 may be selectively disposed on the front cover 1302 to protect the lens module 14 and the oil-water detecting unit 130 in the skin detecting device 1, and also to isolate dust, so as to reduce the influence of dust on the lens module 14 and the oil-water detecting unit 130 in the skin detecting device 1.

To clearly disclose the technical content of obtaining the oil-water analysis frequency of the skin of the user by the oil-water detecting needle 1301, please refer to the following embodiments, and refer to fig. 5A and 5B together when reading the embodiments, wherein fig. 5A is a charging and discharging circuit diagram of the oil-water detection of the skin of the user, and fig. 5B is a charging and discharging cycle diagram of the capacitor C. First, as shown in fig. 5A, a pair of parallel sense resistors (Ra, Rb) connected to an oil and water probe 1301 for sensing a resistance value when a user's skin contains oil and moisture and a capacitor C connected to the sense resistors (Ra, Rb) are disposed on a connection circuit board in the receptacle 1306, thereby forming a charge and discharge circuit. When an operator operates the skin sensing device 1, a pair of sensing resistors (Ra, Rb) respectively sense the resistance value generated when the skin of the user contains grease and moisture, and a charging and discharging circuit is formed by the capacitor C and the sensing resistors (Ra, Rb); where Vcc represents an external power source, such as a lithium battery 17. When the operator determines the resistance value of the sense resistor (Ra, Rb) using the oil/water detection unit 130 of the skin sensing device 1, Vcc charges the capacitor C according to the resistance value of the sense resistor (Ra, Rb).

Next, the operation procedure of fig. 5A is explained. When the voltage Vc of the capacitor C does not reach 1/3 of the external power supply, the output voltage of the pin 3 is defined as a high signal (HI); when the voltage Vc of the capacitor C reaches 2/3 of the external power supply, the output voltage of the pin 3 is defined as LOW (LOW), thereby causing the capacitor C to discharge through the resistor Rb at the pin 4; in the present embodiment, a flip-flop (not shown) is disposed in the pin 3 for outputting a high signal (HI) or a LOW signal (LOW) according to the output voltage. When the oil-water probe 1301 detects moisture and grease on the skin of a user, the capacitor C is continuously charged and discharged, and a charge and discharge cycle of the capacitor C is obtained, as shown in fig. 5B, in addition, the pin 2 is additionally connected with a control capacitor C 'to reduce the interference of external noise on the charge and discharge circuit, the capacitance value of the control capacitor C' is about 0.1uF, the pin 1 is in a grounded state, and the pin 1 is connected to the negative electrode of an external power supply. Referring to FIG. 5B, the vertical axis Vcc represents the voltage of an externally supplied power source, such as that provided by the lithium battery 17; in addition, since the voltage of the external power supply is a stable voltage, the charging and discharging cycle of the capacitor C is a regular cycle, as shown in the lower graph of fig. 5B, T1 represents the time required for charging the capacitor C, T2 represents the time required for discharging the capacitor C, and the horizontal axis T represents the charging and discharging cycle time of the capacitor C. When the capacitor C discharges, a user skin oil-water impedance signal is generated and transmitted to the signal processing module 156 in the circuit board 15 for processing, wherein the relationship between the sensing resistors Ra and Rb and the charging/discharging period value of the capacitor C is as follows:

t1 ═ 0.693 ═ (ra + rb) × C; t2 ═ 0.693 ═ C, and T1+ T2 ═ 1/F

Where Ra represents a resistance value of the sense resistor Ra when sensing the user skin oil and moisture, Rb represents a resistance value of the sense resistor Rb when sensing the user skin oil and moisture, C represents a capacitance value of the capacitor C, and F represents a charging/discharging frequency of the capacitor C. After the signal processing module 156 on the circuit board 15 can obtain the charging and discharging frequency F of the capacitor C according to the above-mentioned relation, the charging and discharging frequency F of the capacitor C is defined as the skin oil-water analysis frequency of the user, the wireless transmission module 155 sends the skin oil-water analysis frequency of the user to the receiving device 2, and the application program installed in the receiving device 2 performs the analysis frequency comparison, and the basis of the frequency comparison is shown in table 2:

TABLE 2

Oil water analysis frequency	5K～30KHZ	31K～80KHZ	81K～120KHZ
				Oil water number	0～40	44～52	53～65
Moisture content of skin of user	Low water content	Is moderate	High water content
				Oil content	High oiliness	Is moderate	Low oil content
Softness	Partial dryness	Is moderate	Is soft

Table 2 is a comparison table of the oil-water analysis frequency and the oil-water value of the skin of the user, the oil-water analysis frequency and the set oil-water value in table 2 are compared to obtain the water content and the oil content of the skin of the user, and the softness of the skin of the user can be further estimated according to the water content and the oil content of the skin of the user, and in a preferred embodiment, the frequency range used for the oil-water analysis of the skin of the user is 5KHz to 120 KHz. However, the present invention is not limited to this frequency range of 5KHz to 120 KHz.

The present embodiment further provides a method for obtaining a skin condition of a user by using the skin detection device provided by the present invention, as shown in fig. 6A, wherein fig. 6A is a flowchart of an operation of the skin detection device. First, in step S1, the operator starts the skin detection device 1, for example, after the user presses the power switch 154, the power needed by the white LED bulb 111, the lens module 14 and the circuit board 15 is supplied and started; next, in step S2, after completing the on-line test of the skin test apparatus 1 and the receiving apparatus 2 and completing the wireless communication connection, the operator confirms that the wireless transmission module 155 of the skin test apparatus 1 and the application program configured in the receiving apparatus 2 are on-line. In a preferred embodiment, the application can be a mobile application (mobile application) within the mobile device. Then, in step S3, the operator aligns the circular opening 21 of the skin detection device 1 with the skin of the user (for example, the skin of the face) to perform skin detection, at this time, the light source of the white LED light 111 enables the camera unit 141 on the lens module 14 to capture the skin image of the user and obtain the polarized light signal, the polarized light signal can be further transmitted to the signal processing module 156 to be processed into the original skin image of the user, the original skin image of the user is transmitted to the receiving device 2 by the wireless transmission module 155, and the display (not shown in the figure) on the receiving device 2 displays the skin of the user; next, in step S4, the operator selects to analyze the skin condition of the user. In this step, after the user sees his skin through the display on the receiving device 2 and decides to perform skin analysis, the operator can press the camera control switch 153 to take a picture, the skin detection device 1 can obtain the original image of the skin of the user, then the application program of the receiving device 2 performs the analysis of the original image of the skin of the user to obtain the analysis result, finally, the receiving device 2 can present the analysis result to the user, so the user can know the skin condition according to the implementation method, and in a preferred embodiment, the analysis result can be presented to the user in the form of an analysis index.

In order to enable the skin detection apparatus provided by the present invention to provide an analysis result related to the skin condition of the user, and the analysis result is presented in the form of an analysis index, so that the user and the operator can know the skin condition of the user, and an implementation manner of an analysis procedure of the skin condition of the user is provided, please refer to fig. 6B and fig. 7A to fig. 7F. Fig. 6B is a flowchart of an analysis procedure of a user skin original image, and fig. 7A to 7F are schematic diagrams illustrating comparison of the user skin image obtained by the analysis procedure of fig. 6B, wherein fig. 7A is a comparison diagram of original pores and black and white of the user skin image; FIG. 7B is a graph of a comparison of original and black-and-white texture of a user's skin image; FIG. 7C is a comparison of original and black and white of a spot of an image of a user's skin; FIG. 7D is a comparison of original and black-and-white of wrinkles in an image of a user's skin; FIG. 7E is a diagram showing original and black-and-white UV detection of skin metal fluorescence; fig. 7F is a schematic of UV detection of pore blockage and keratose stacking in raw and black and white. In addition, fig. 7A to 7F include the black-and-white contrast image (the lower diagrams of fig. 7A to 7D) of the user skin image (the upper diagrams of fig. 7A to 7D, which are the original skin image) and the user skin image obtained after the analysis procedure of fig. 6B, and the black area in the black-and-white contrast image is the area obtained after the skin spots, textures, pores or wrinkles are intensively compared; white is the area of normal skin.

First, in step S41, after the receiving device 2 receives the original image of the skin of the user sent by the wireless transmission module 155, the application program installed in the receiving device 2 performs image preprocessing, such as image size clipping and image background noise removal, to obtain the image of the skin of the user, which is beneficial to the subsequent analysis steps. Then, as shown in the analyzing step S42, the contrast of the skin image of the user is enhanced by image color enhanced contrast, such as enhancing the spots, textures, pores or wrinkles in the skin image to be compared with the general skin, and a user enhanced contrast skin image is obtained, wherein the enhanced contrast skin image is the original skin image. Then, as shown in the analyzing step S43, the image application program classifies the user-enhanced contrast skin image according to different analysis objectives, wherein the analysis objectives include skin defects and skin textures, and in one embodiment, the skin defects include spots and pores; the skin texture includes wrinkles, texture, etc., and is classified according to the wrinkle and texture, and then the subsequent analysis is performed; then, as shown in the analyzing step S44, the image of the user enhanced contrast skin is post-processed to obtain a black-and-white contrast image, as shown in fig. 7A to 7F, the post-processing includes image edge detection and image color layering analysis, wherein the algorithm for realizing the image edge detection may be canny algorithm; the algorithm for realizing the image color layering analysis can be a Fuzzy C means algorithm and the like, the embodiment does not limit the algorithm, the application program can further carry out percentage statistics on black areas in the black-white contrast image, and presents the counted percentages to the user and operator in the form of an analysis index, presented by the receiving means 2, for example when the application program analyses the size of the skin pores of the user at the moment, if the statistical percentage of the black area in the comparison graph obtained after the analysis procedure is 20%, the receiving device 2 will present the analysis result of the pore analysis index 20 to the user and the operator, and the skin detection device 1 can also obtain various information related to the skin condition of the user, such as pore size, speckle depth, wrinkle depth, etc., by the analysis procedure, and provide the user with the following beauty advice based on the information. It is clear that, as shown in the upper diagram of fig. 7A, the skin detection apparatus provided by the present invention can accurately analyze the original image of the size and the position of the sweat pores on the skin of the user, and the size and the position of the sweat pores on the skin of the user can be seen more clearly from the black-and-white contrast diagram of the lower diagram of fig. 7A. Next, as shown in the upper diagram of fig. 7B, the skin detection device provided by the present invention can accurately analyze the original image of the size and position of the skin texture on the skin of the user, and the size and position of the skin texture on the skin of the user can be seen more clearly from the black-and-white contrast diagram of the lower diagram of fig. 7B. Furthermore, as shown in the upper diagram of fig. 7C, the skin detection device provided by the present invention can accurately analyze the original image of the size and the position of the spot on the skin of the user, and the size and the position of the spot on the skin of the user can be seen more clearly from the black-and-white contrast diagram of the lower diagram of fig. 7C. Finally, as shown in fig. 7D, the skin detecting device provided by the present invention can accurately analyze the original image of the size and position of the wrinkles on the skin of the user, and the size and position of the wrinkles on the skin of the user can be seen more clearly from the black-and-white contrast image of the lower diagram of fig. 7D. In addition, as shown in FIG. 7E, the skin detecting device provided by the present invention can reflect the metal fluorescence reaction on the skin under the irradiation of the specific wavelength of violet light, so that it can be used to detect whether the metal component is contained on the skin surface of the user. And, as shown in fig. 7F, the skin test device provided by the present invention can clearly show acne and propagating bacteria in skin capillary pores in different colors under the irradiation of violet light of specific wavelength, and thus can be used for testing the cleanliness of skin capillary pores.

In order to enable the skin detection device provided by the present invention to obtain the oil-water content of the skin of the user, further obtain the softness of the skin of the user, and provide an implementation manner of an analysis program for the oil-water content of the skin of the user, please refer to fig. 6C while reading the following implementation manner; fig. 6C is a flow chart of an analysis procedure of skin oil-water content, first, an oil-water detecting needle 1301 disposed in the skin detection device 1 obtains a skin oil-water impedance signal of a user, then the skin oil-water impedance signal of the user is transmitted to the circuit board 15 to be processed into a skin oil-water analysis frequency of the user, and the skin oil-water analysis frequency is transmitted to the receiving device 2 by the wireless transmission module 155 for comparison, in a preferred embodiment, the skin oil-water analysis frequency of the user is in a range of 5KHz to 120KHz, then, as shown in an analysis step S45, an application program disposed in the receiving device 2 compares the skin oil-water analysis frequency of the user, and obtains a corresponding skin water content and a corresponding oil-water content of the user, and further analyzes the skin softness by the skin oil-water content, in a preferred embodiment, if the received skin oil-water analysis frequency of the user is 8KHz, the application program compares the skin oil-water value of the user to 25, judges that the skin water content of the user is 25 percent, classifies the skin oil content as high oiliness and judges that the skin softness of the user is high oiliness; if the received oil-water analysis frequency of the skin of the user is 120KHz, the application program compares that the oil-water value of the skin of the user is 65 at the moment, and thereby the water content of the skin of the user is determined to be 65%, the oil content of the skin is classified as low-oiliness, and the skin softness of the user is determined to be low-oiliness at the moment; finally, as shown in step S46, the receiving device 2 presents the analysis result of the oil-water content and the skin softness to the user and the operator, and provides the user with the following beauty advice based on the analysis result and the skin softness.

As can be seen from the foregoing embodiments, the analysis program disclosed in the present invention has the function of analyzing the original image of the skin of the user and the oil-water analysis frequency of the skin of the user obtained by the skin detection device, and can obtain various information of the skin condition of the user, such as pore size, speckle depth, wrinkle depth, water content, oil content, and softness, in another embodiment, the application program may be installed in the skin detection device 1, and the wireless transmission module 155 transmits the result of the analysis of the application program to the receiving device 2, and then the receiving device 2 displays the analysis result.

In view of the above, the operation of the skin detection device 1 of the present invention is illustrated with reference to fig. 1, fig. 3A and fig. 3B. The user selects the white LED bulb 111 or the UV LED bulb 112 of the LED lamp panel 11 in the skin detection device 1 as a light source to irradiate the skin, and uses the lens module 14 or the photographing unit 212 to perform a photographing function, and obtains a skin original image after being processed by the signal processing module 156, and the skin original image is transmitted to the receiving device 2 through the wireless transmission module 155 in a wireless communication manner such as bluetooth or WIFI; thereafter, the user views the original image of the skin by using the preview unit 211 of the application program in the receiving apparatus 2, and the user can view the condition of each piece of skin of the user through the enlarging unit 213. When the suspected skin is detected and analyzed, the skin condition analysis is performed by using an application program, wherein the skin condition analysis comprises the pore size, the texture size, the spot size, the wrinkle size, the skin roughness, the metal fluorescence reaction and the cleanliness of capillary pores of the skin, and the analysis result of the skin condition can be obtained after the analysis, and can be displayed on the receiving device 2 and be viewed by a user. Of course, the analysis result of the skin information can also be transmitted to the backend device 3 for access.

In another preferred embodiment, when the user contacts the skin of the user by using the oil/water detecting unit 130 in the skin detecting device 1, the oil/water content on the skin of the user is converted into an impedance signal and transmitted to the circuit board 15. Then, the signal processing module 156 disposed in the circuit board 15 processes the skin oil-water impedance signal of the user to obtain a skin oil-water analysis frequency of the user, the skin oil-water analysis frequency is transmitted to the receiving device 2 through the wireless transmission module 155 in a bluetooth or WIFI manner, and the application program in the receiving device 2 analyzes the skin oil-water analysis frequency to obtain an analysis result of the skin water content and the skin oil content. The analysis results of the skin condition, the skin moisture content and the skin oil content include pore size, spot depth, wrinkle depth, skin texture, skin roughness, moisture content, oil content and softness, and the analysis results of the skin condition, the skin moisture content and the skin oil content can be transmitted to the back-end device 3 for access by a wired or wireless method, and the user can download the analysis results accessed from the back-end device 3 to a display device (not shown in the figure) on the receiving device 2 to view the analysis results of the skin condition, the skin moisture content and the skin oil content.

In another preferred embodiment, when the user uses the application program in the receiving device 2 to view the analysis results of the skin condition, the skin moisture content and the skin oil content, and each analysis result displays the result of the skin detection and the comment, for example, when the user uses the application program in the receiving device to view the skin moisture content, the result of the skin detection presented by the application program may be low moisture content, moderate moisture content or high moisture content, and if the skin moisture content of the user is low, the comment of the skin detection may present the comment that the user needs to moisturize.

In another preferred embodiment, the application program further comprises a menu 22, and the menu 22 further comprises a beauty-care encyclopedia, an online shopping mall, a company web page, personal data and online consultation; the user can inquire basic introduction information of skin related to pore size, spot depth, wrinkle depth, skin texture, skin roughness, metal fluorescence reaction, water content, oil content and softness through a small beauty encyclopedia, and can also check information such as skin maintenance modes and the like through the receiving device 2 in time; in addition, the user can also purchase cosmetics such as lotion, milky lotion, sun cream or sun block emulsion to maintain the skin by connecting the receiving device 2 to an online shopping mall; in addition, the user can set personal data part, including personal basic data setting, personal skin detection time notification, or management of the analysis result of the skin information obtained during each detection for arrangement, and the user can also connect to the company web page through the receiving device 2 to inquire or view whether a new skin care instrument is available for purchase; in addition, the user acquires the analysis result of the skin information and uploads the result to the back-end device 3, and when the user has a skin state problem, the user can share data with a doctor or a cosmetologist through online consultation and discuss the analysis result of the skin information.

The present embodiment further provides a flowchart of steps of implementing the skin detection and maintenance system according to the present invention, please refer to fig. 8 in combination with fig. 1, fig. 3A and fig. 3B. First, in step S01, the user connects the skin detection device 1 with the receiving device 2 by using wireless communication methods such as bluetooth or WIFI, and when the user sets the skin detection device 1 on the skin surface of the user but does not perform skin detection or moves on the skin surface, the image of the skin can be transmitted to the receiving device 2 through the lens module 14 via the wireless transmission module 155, and the user can synchronously view the image of the skin of the user by using the preview unit 211 of the application program in the receiving device 2.

Then, in steps S02 and S03, the skin detection device 1 is used to perform the skin detection, for example, the lens module 14 or the camera unit 212 of the skin detection device 1 is used to perform a camera function, and the signal processing module 156 is used to process the skin raw image, or the oil/water detection unit 130 of the skin detection device 1 is used to contact the skin of the user, so as to obtain the oil/water analysis frequency of the skin of the user, and the wireless transmission module 155 is used to transmit the skin raw image or the skin oil/water analysis frequency to the receiving device 2 in a wireless communication manner such as bluetooth or WIFI.

Next, in steps S03 to S05, the user views the original skin image by using the preview unit 211 of the application program in the receiving device 2, so as to view the condition of each piece of skin, and when the user encounters the skin that is suspected to be detected and analyzed, the user performs the skin condition analysis by using the application program, and after the analysis, the analysis result of the skin condition can be obtained, and in addition, the application program can also perform the comparison between the skin moisture content and the skin oil content of the skin oil-water analysis frequency, so as to obtain the analysis result of the skin moisture content and the skin oil content, so that the user views the analysis result of the skin condition, the skin moisture content and the skin oil content by using the application program in the receiving device 2; if the user wants to continue to detect the skin condition of different parts or the user considers that the original image of the skin is not clear, the steps S02-S05 can be repeated to detect the skin again.

Then, in step S06, the user views the analysis results of the skin condition, the skin moisture content and the skin oil content through the application program in the receiving device 2, and each analysis result displays the result and comment of the skin detection so that the user can know the current skin condition, and the user can query the basic skin introduction information about the pore size, the spot depth, the wrinkle depth, the skin texture, the skin roughness, the moisture content, the oil content and the softness through the function menu 22 of the application program in the receiving device 2.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention; while the foregoing description is directed to embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims (3)

1. A skin detection and maintenance system comprises a skin detection device and a receiving device, and is characterized in that:

the skin detection device is provided with an LED lamp panel, a plurality of white light LED bulbs and a plurality of UV LED bulbs are arranged on the LED lamp panel to provide detection light required by the skin detection device during implementation, a hollow area is arranged at the center of the LED lamp panel, the plurality of white light LED bulbs and the plurality of UV LED bulbs are arranged in a mode of surrounding the hollow area and forming concentric circles, the plurality of white light LED bulbs are arranged on the periphery of the concentric circles, and the UV LED bulbs are arranged on the middle ring of the concentric circles;

the first polarizer is arranged on the LED lamp panel and used for filtering reflected light reflected when the detection light is projected to the face of a user, and a plurality of first through holes corresponding to the white LED bulbs are arranged at the edge of the first polarizer and used for enabling the detection light generated by the white LED bulbs to pass through the plurality of first through holes of the first polarizer and be projected to the skin of the user;

a second polarizer disposed on a side of the first polarizer close to the skin of the user, such that the first polarizer and the second polarizer are disposed in an overlapping manner, a through hole is disposed at a center of the second polarizer and corresponds to the hollow region of the LED lamp panel, and a plurality of second through holes corresponding to the white LED bulbs are also disposed between an edge of the second polarizer and the through hole at the center of the second polarizer, wherein the number of the second through holes is changed to shield the detection light generated by the white LED bulbs, and the reflected light passes through the through hole at the center of the second polarizer, and then the scattered light is filtered by the first polarizer to obtain an polarized light signal;

the lens module is electrically connected with the LED lamp panel and consists of a camera unit and a soft board, and the camera unit receives the polarized light signal through a complementary metal oxide semiconductor arranged in the camera unit and converts the polarized light signal into an electric signal;

a connector is arranged at one end of the circuit mainboard and is electrically connected with the soft board on the lens module, so that the circuit mainboard receives the electrical signal, a light source control switch, a camera control switch, a power switch, a wireless transmission module and a signal processing module are arranged on the circuit mainboard, the signal processing module of the circuit mainboard converts the electrical signal into a skin original image, and the skin original image is sent to the receiving device through the wireless transmission module;

the lower cover is provided with an accommodating space for loading the LED lamp panel, the lens module and the circuit main board;

the upper cover is connected with the lower cover, and a plurality of keys are arranged on the upper cover and are respectively connected with the light source control switch, the photographing control switch and the power switch;

the LED lampshade is arranged at the front ends of the upper cover and the lower cover;

the oil-water detection unit is connected with the LED lamp shade and comprises an oil-water detection needle head and an adaptor, a connecting circuit board is arranged in the adaptor, a charging and discharging circuit formed by an induction resistor is arranged on the connecting circuit board in the adaptor, the induction resistor is connected with the oil-water detection needle head and used for sensing the resistance value when the skin of the user contains grease and moisture, and the charging and discharging circuit generates a skin oil-water impedance signal; the connecting circuit board in the adaptor is connected with the connector on the circuit main board to transmit the obtained skin oil-water impedance signal to the circuit main board, and then the skin oil-water impedance signal is processed by the signal processing module to obtain skin oil-water analysis frequency;

the receiving device receives the skin original image and the skin oil-water analysis frequency, displays the skin original image by using a mobile application program, and analyzes skin conditions, skin water content and skin oil content according to the skin original image and the skin oil-water analysis frequency; the mobile application program utilizes a comparison table of the skin oil-water numerical value of the user to compare with the skin oil-water analysis frequency to obtain the skin water content and the skin grease content, and further estimates the skin softness according to the skin water content and the skin grease content; and

a backend device in wireless communication connection with the receiving device to receive and store the skin condition, the skin moisture content, the skin oil content, and the skin softness analyzed by the mobile application; the skin condition analyzed included pore size on skin, skin texture size, spot size and spot depth on skin, wrinkle size and wrinkle depth on skin, skin roughness, metallofluorescence response on skin and keratose stacking.

2. The skin test maintenance system of claim 1, wherein the mobile application further comprises a menu and a preview unit.

3. A method of skin test maintenance, comprising:

providing detection light required by the skin detection device when the skin detection device is implemented by using an LED lamp panel in the skin detection device through a plurality of white light LED bulbs and a plurality of UV LED bulbs in the LED lamp panel, wherein a hollow area is arranged at the central position of the LED lamp panel, the plurality of white light LED bulbs and the plurality of UV LED bulbs are arranged in a mode of surrounding the hollow area and forming concentric circles, the plurality of white light LED bulbs are arranged on the periphery of the concentric circles, and the UV LED bulbs are arranged on the middle ring of the concentric circles;

the detection light generated by the white light LED bulb can be shielded and filtered by a first polaroid and a second polaroid which are arranged on the LED lamp panel when the detection light is projected onto the face of a user, a plurality of first through holes corresponding to the white light LED bulb are arranged at the edge of the first polaroid, the detection light generated by the white light LED bulb can be projected onto the skin of the user through the first through holes of the first polaroid, the second polaroid is arranged at one side, close to the skin of the user, of the first polaroid, so that the first polaroid and the second polaroid are arranged in an overlapping mode, a through hole is arranged at the center of the second polaroid and corresponds to the hollow area of the LED lamp panel, and a plurality of through holes corresponding to the white light LED lamp panel are also arranged between the edge of the second polaroid and the through hole at the center of the second polaroid The second through holes of the bulb are arranged in a number which is changed so as to be used for shielding the detection light generated by the white light LED bulb, the reflected light passes through the through holes at the central position of the second polarizer, and then scattered light is filtered by the first polarizer so as to obtain a polarized light signal;

after obtaining the polarized light signal, a lens module connected with one end of the LED lamp panel is used for receiving the polarized light signal, the lens module consists of a camera unit and a soft board, and the camera unit receives the polarized light signal through a complementary metal oxide semiconductor arranged in the camera unit and converts the polarized light signal into an electric signal;

a circuit main board in the skin detection device is configured with a light source control switch, a photographic control switch, a power switch, a wireless transmission module and a signal processing module, one end of the circuit main board is provided with a connector which is electrically connected with the soft board on the lens module, so that the circuit main board receives the electric signal, processes the electric signal into an original skin image through the signal processing module and transmits the original skin image to the wireless transmission module, and the wireless transmission module sends the original skin image to a receiving device;

the skin detection device is aligned with the openings of the LED lamp covers arranged at the front ends of the upper cover and the lower cover to be arranged on the skin of the user, so that the oil-water detection unit connected with the LED lamp covers is contacted with the skin of the user to detect the water content and the oil content of the skin; the oil-water detection unit comprises an oil-water detection needle head and an adaptor, a connecting circuit board is arranged in the adaptor, a charging and discharging circuit formed by an induction resistor is arranged on the connecting circuit board in the adaptor, the induction resistor is connected with the oil-water detection needle head and used for sensing the resistance value when the skin of a user contains oil and water, and the charging and discharging circuit generates a skin oil-water impedance signal; the connecting circuit board in the adaptor is connected with the connector on the circuit main board to transmit the obtained skin oil-water impedance signal to the circuit main board, and then the skin oil-water impedance signal is processed by the signal processing module to obtain skin oil-water analysis frequency;

receiving the skin original image and the skin oil-water analysis frequency by using the receiving device, displaying the skin original image by using a mobile application program, and analyzing skin conditions, skin water content and skin oil-water content according to the skin original image and the skin oil-water analysis frequency; the mobile application program utilizes a comparison table of the skin oil-water numerical value of the user to compare with the skin oil-water analysis frequency to obtain the skin water content and the skin grease content, and further estimates the skin softness according to the skin water content and the skin grease content; and

utilizing a back-end device in wireless communication with the receiving device for receiving and storing the skin condition, the skin moisture content, the skin lipid content, and the skin softness analyzed by the mobile application; the skin condition analyzed included pore size on skin, skin texture size, spot size and spot depth on skin, wrinkle size and wrinkle depth on skin, skin roughness, metallofluorescence response on skin and keratose stacking.

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