System for skin detection

Abstract

A system (100) for skin detection, comprising: a body (110); a telescopic member (120) which is telescopic with respect to the main body (110) and has a skin contact surface (121), where the telescopic member (120) is in an extended position when the skin contact surface (121) is not applied with pressure and in a retracted position when the skin contact surface (121) is applied with pressure; a pressure sensor (130) for detecting pressure to acquire a pressure data set when the skin contact surface (121) contacts the skin of the user; and skin detection means (140) for acquiring a skin data set when the skin contact surface (121) contacts the skin of the user.

Description

Systems for skin detection Technical Field

[0001] The present application relates to the field of skin detection, and more particularly to a skin detection system. Background Art

[0002] Skin monitoring devices typically use multiple sensors, either independently or in combination, to act on the human skin surface, combined with scientific algorithms to obtain static and dynamic characteristics of the skin. Half of the devices currently available on the market use a single sensor to directly obtain a specific electrical feedback parameter from the skin, and then use algorithms to derive one or more characteristic parameters of the skin. Common sensor methods for obtaining skin parameters generally fall into two categories: contact and non-contact.

[0003] Contact testing, including electrode testing (measuring the capacitance within a certain range of the skin) and capacitance array testing, often suffers from the fact that subjective factors such as the angle of contact between the subject's skin and the device, the force involved, and the degree of skin compression, can significantly impact the test results.

[0004] Non-contact testing, including various optical sensors and macro cameras, is susceptible to the physical conditions of the user's skin surface. For example, in some handheld non-contact tests, while the sensor itself doesn't need to come into contact with the skin, the device itself does. This contact can cause compression and other effects on the skin, affecting the test results.

[0005] Prior art has proposed a method for improving accuracy by calculating the skin parameters of the skin under test based on the electrical parameters detected by the test head when the pressure parameter reaches a preset value. However, this method does not take into account the force application habits of different individuals or whether the force is stable after the pressure parameter reaches the preset value. When a user performs a skin test, the process of the test head contacting the skin typically progresses from a small increase in force to a stable force, finally rapidly decaying. This process varies significantly for different individuals. In existing methods, if the preset value coincides with the user's increasing force, the measured skin parameters are clearly inaccurate. On the other hand, if the pressure applied to the skin under test by the test head fluctuates significantly after the pressure parameter reaches the preset value, the contact between the test head and the skin under test will also vary significantly. Not only will the measured skin parameters be inaccurate, but such variations will also have a significant subjective impact on the measured skin parameters between multiple measurements, making it impossible to objectively present the true changes in skin parameters between measurements and, therefore, unable to accurately determine the dynamic changes in the skin.

[0006] Summary of the Invention

[0007] The purpose of the exemplary embodiments of the present invention is to overcome the above-mentioned and / or other problems in the prior art, and in particular to be able to record the user's force information by using a pressure sensor when the skin detection device detects the user's skin, thereby allowing the skin detection data to be subsequently screened using pressure as a reference.

[0008] According to an exemplary embodiment, a system for skin detection is provided. The system includes: a main body; a telescopic member that is extendable relative to the main body and has a skin contact surface, wherein the telescopic member is in an extended position when no pressure is applied to the skin contact surface and is in a retracted position when pressure is applied to the skin contact surface; a pressure sensor for detecting pressure when the skin contact surface contacts the user's skin to obtain a pressure dataset; and a skin detection device for obtaining a skin dataset when the skin contact surface contacts the user's skin.

[0009] Preferably, the system further comprises a processor configured to process the pressure data set to determine a pressure stabilization period and a pressure representative value thereof.

[0010] Preferably, the processor is configured to determine whether the pressure characterization value is within a preset pressure interval, and when the pressure characterization value is within the preset pressure interval, process multiple sets of skin data corresponding to the pressure stabilization period in the skin data set to obtain skin characteristics.

[0011] Preferably, the preset pressure interval is set in the following manner: using the telescopic component to press the user's skin to obtain a pressure data set; the processor processes the pressure data set to determine the pressure stabilization period of the pressure data set and its pressure characterization value; and the pressure characterization value is increased or decreased by a percentage to set the preset pressure interval.

[0012] Preferably, the preset pressure interval is further set by: using the telescopic component to press the user's skin multiple times to obtain multiple pressure data sets; the processor processes the multiple pressure data sets to determine the pressure stabilization period and pressure characterization value of each pressure data set; and the maximum and minimum values ​​of the pressure characterization values ​​are respectively increased and decreased by a percentage to set the preset pressure interval.

[0013] Preferably, the pressure characterization value is within a predetermined threshold range.

[0014] Preferably, when the user presses his skin with the telescopic component, the normal of the skin contact surface is substantially perpendicular to the user's skin.

[0015] Preferably, the skin detection device includes: an electrode sensor, arranged in the skin contact surface and used to detect capacitance data of the user's skin; a capacitive fingerprint detector, arranged in the skin contact surface and used to detect texture data of the user's skin; and an optical sensor, used to detect optical feedback data of the user's skin via a transparent window arranged on the skin contact surface, wherein the capacitance data, the texture data and the optical data are associated via a timestamp to constitute a set of skin data, and the skin data set includes multiple sets of skin data.

[0016] Preferably, the optical sensor includes a light source and a photosensor, wherein the optical sensor is configured such that: the light source emits light to illuminate the user's skin through the transparent window; and the photosensor detects light reflected back from the user's skin through the transparent window to generate the optical feedback data.

[0017] Preferably, the electrode sensor and the optical sensor perform detection in response to the pressure detected by the pressure sensor, and the capacitive fingerprint detector performs detection in response to the pressure detected by the pressure sensor being within a predetermined pressure range.

[0018] Preferably, the skin characteristics include at least one of the following: moisture index, oil index, whiteness index, elasticity index, pore index and fine line index.

[0019] Preferably, the processor is configured to analyze multiple sets of skin data corresponding to different time points over a period of time and determine the dynamic change parameters of the user's skin in combination with environmental parameters, wherein the dynamic change parameters include moisture retention capacity, moisture loss rate, oil production rate or temperature-skin change rate.

[0020] Preferably, the period of time is 6 hours, 12 hours, 1 day, 7 days, 28 days or longer.

[0021] Preferably, the system further comprises a formula module, which determines a formula and dosage of a skin care product suitable for the user's skin according to the skin characteristics.

[0022] Preferably, the system further comprises a plurality of auxiliary pressure sensors, which are evenly distributed around the pressure sensor to detect the pressure at a plurality of points when pressure is applied to the skin contact surface.

[0023] Preferably, the pressure data provided by the pressure sensor and the plurality of auxiliary pressure sensors are analyzed to determine whether the force on the skin contact surface is uniform, and when the force on the skin contact surface is uneven, the system is configured to prompt that re-measurement is required.

[0024] Preferably, the pressure data provided by the pressure sensor and the plurality of auxiliary pressure sensors are analyzed to assist in determining the elasticity index of the user's skin.

[0025] Preferably, the system further comprises a user interface, wherein the user interface is arranged on the main body, or the user interface is provided by an application on a user device communicating with the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention may be better understood by describing exemplary embodiments of the present invention in conjunction with the accompanying drawings, in which:

[0027] FIG1 shows a schematic architecture diagram of a system for skin detection according to an embodiment of the present invention.

[0028] FIG2 shows a flow chart for determining a preset pressure range.

[0029] FIG3 shows an example of setting the preset pressure range.

[0030] FIG4 schematically shows an example of how to use a pressure filter to filter skin detection data. DETAILED DESCRIPTION

[0031] The specific embodiments of the present invention will be described below. It should be noted that in the specific description of these embodiments, in order to provide a concise description, this specification cannot provide a detailed description of all the features of the actual embodiments. It should be understood that in the actual implementation of any embodiment, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and this will also change from one embodiment to another. In addition, it can also be understood that although the efforts made in this development process may be complex and lengthy, for ordinary technicians in the field related to the content disclosed by the present invention, some design, manufacturing or production changes based on the technical content disclosed in this disclosure are just conventional technical means and should not be understood as the content of this disclosure being insufficient.

[0032] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the usual meaning understood by persons of ordinary skill in the technical field to which the invention belongs. The words "first", "second" and similar terms used in the description and claims of the patent application of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "one" or "a" do not indicate a quantity limitation, but rather indicate the existence of at least one. Words such as "include" or "comprising" mean that the elements or objects appearing before "include" or "comprising" cover the elements or objects listed after "include" or "comprising" and their equivalent elements, and do not exclude other elements or objects. Words such as "connected" or "connected" and similar terms are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0033] In this disclosure, a feature may be referred to as being "configured for" or "capable of" performing certain tasks, even if the feature is not currently being operated. For example, "a skin detection device for acquiring a skin data set" is intended to encompass a skin detection device having a component that performs the function during operation, even if the skin detection device is not currently being operated (e.g., not activated).

[0034] In this application, unless otherwise specified, all embodiments and preferred embodiments mentioned herein can be combined with each other to form a new technical solution. In this application, unless otherwise specified, all technical features and preferred features mentioned herein can be combined with each other to form a new technical solution.

[0035] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0036] The following describes in detail a system for skin detection provided by an embodiment of the present invention with reference to the accompanying drawings.

[0037] FIG1 shows a schematic architecture diagram of a system for skin detection according to an embodiment of the present invention.

[0038] The system 100 for skin detection may include a main body 110, a telescopic component 120, a pressure sensor 130, and a skin detection device 140. The telescopic component 120 is capable of extending and contracting relative to the main body 110 and has a skin contact surface 121. The skin contact surface 121 may be perpendicular to the extension and contraction direction of the telescopic component 120. The telescopic component 120 may be coupled to the main body 110 by means of an elastic element (such as a spring). As an example, as shown in FIG1 , the spring 111 may be provided on a cylinder inside the main body 110, and the telescopic component 120 may have a stopper, which may have a through hole through which the cylinder can pass, and the stopper is configured to abut against the spring 111 so that when the telescopic component 120 is contracted relative to the main body 110, the spring is compressed and the cylinder passes through its through hole. Note that FIG1 only shows an example of a possible structure of a system for skin detection and is not intended to limit the specific structure and connection method of the main body 110 and the telescopic component 120.

[0039] The telescopic member 120 may be in an extended position A relative to the body 110 when no pressure is applied to the skin contact surface 121 and in a retracted position B when pressure is applied to the skin contact surface 121 .

[0040] The pressure sensor 130 can detect pressure when the skin contact surface 121 contacts the user's skin to obtain a pressure data set. For example, as shown in FIG1 , when the telescopic member 120 is in the retracted position B due to pressure on the skin contact surface 121 from the user's skin, the pressure sensor 130 abuts against a support member within the main body 110 to detect the pressure applied, thereby obtaining a pressure data set associated with time. Those skilled in the art will appreciate that the pressure sensor 130 can also be located in other locations and have a variety of arrangements to measure the pressure applied to the skin contact surface 121 of the telescopic member 120, and this application is not intended to limit the specific location and arrangement of the pressure sensor 130.

[0041] Skin detection device 140 can acquire a skin dataset when skin contact surface 121 contacts the user's skin. Skin detection device 140 may include one or more sensors to detect one or more properties of the user's skin. The structure of skin detection device 140 according to an exemplary embodiment of the present application will be described in detail below. Similarly, the present application is not intended to limit the specific structure and arrangement of skin detection device 140, as long as skin detection device 140 is capable of acquiring data regarding skin properties when skin contact surface 121 contacts the user's skin.

[0042] In the above-mentioned architecture of the system 100 for skin detection of the present application, when the skin contact surface 121 is subjected to pressure from the user's skin and the telescopic component 120 is in the retracted position B, the pressure sensor 130 and the skin detection device 140 can work simultaneously to obtain corresponding data, thereby allowing pressure to be used as a sieve to filter the skin detection data in subsequent data processing.

[0043] In some embodiments of the present application, the system 100 may further include a processor (not shown). The processor may communicate indirectly or directly with the pressure sensor 130 and the skin detection device 140 to receive data from the pressure sensor 130 and the skin detection device 140. The processor may be disposed within the main body 110 or the telescopic member 120 to directly obtain data from the pressure sensor 130 and the skin detection device 140, or may be disposed separately from the main body 110 or the telescopic member 120 (e.g., disposed in a remote server that communicates with the pressure sensor 130 and the skin detection device 140) to obtain data from the pressure sensor 130 and the skin detection device 140 via a transceiver.

[0044] The processor can be configured to process the pressure dataset to determine a pressure stabilization period and its pressure representation value. When a user performs a skin test, the process of the handheld device contacting the skin typically involves a gradual increase in force, stabilization, and a rapid decay. The skin testing system 100 of the present application can detect and control the user's test force using a pressure sensor, and then use an algorithm to obtain the stabilization period and its pressure representation value during the user's test process. The pressure representation value can be the average pressure value or other statistical value during the stabilization period.

[0045] In some embodiments of the present application, the processor can be configured to determine whether the pressure characterization value is within a preset pressure interval, and when the pressure characterization value is within the preset pressure interval, multiple sets of skin data corresponding to the pressure stabilization period in the skin data set are processed to obtain skin characteristics. The preset pressure interval can be considered to be a pressure stabilization range that conforms to the user's force habits. In this way, it can be ensured that the skin characteristics are obtained by processing multiple sets of skin data within the pressure stabilization period, rather than based on the skin data obtained in the process of the user's force increasing from small to large, thereby further improving the relativity of the skin data. In contrast, in the prior art, it has never been conceived that the impact of the force habits of different users on the skin detection results needs to be considered. Therefore, the rationality of the detected skin data and the accuracy of the derived skin data cannot be guaranteed, and the comparability between multiple measurements caused by the pressure fluctuations of the test head on the user's skin cannot be ruled out.

[0046] Referring to Figure 2 , the preset pressure interval can be set through steps S210-S230. In step S210, the telescopic member 120 is used to press the user's skin to obtain a pressure data set. In step S220, the processor processes the pressure data set to determine the pressure stabilization period and its pressure-representing value. In step S230, the pressure-representing value is adjusted upward and downward by a percentage to set the preset pressure interval.

[0047] When a user presses their skin using the telescopic member 120, if the pressure characteristic value during the pressure stabilization period is within a preset pressure range, the user can be deemed to have applied pressure appropriately, and the skin data corresponding to the pressure stabilization period is qualified and can therefore be used to analyze the user's skin characteristics. Conversely, if the pressure characteristic value during the pressure stabilization period is outside the preset pressure range, the user can be deemed to have applied pressure improperly, and the skin data acquired from this application is unqualified and cannot be used to analyze the user's skin characteristics. For example, if the user accidentally applies too little or too much force, the skin data acquired from this application can be prevented from being used for analysis. In this way, differences in skin compression can be prevented from significantly affecting the skin detection results. For example, when a user uses the system 100 to perform multiple skin tests over a period of time and then compares multiple skin datasets from that period, the above approach can be advantageous in that it can mitigate or eliminate the impact of differences in skin compression on the multiple detection data, thereby enabling the multiple skin datasets to more objectively reflect the dynamic changes in the user's skin characteristics.

[0048] It is understandable that the detection stabilization period of different people will be significantly different. Even the stabilization period of the same person will be different in different tests. The same user can make the stabilization period closer by gradually controlling their strength habits. Therefore, in a preferred embodiment of the present application, the telescopic component 120 can be used to press the user's skin multiple times to obtain multiple pressure data sets, and then the processor processes the multiple pressure data sets to determine the pressure stabilization period and pressure representation value of each pressure data set. Finally, the maximum and minimum values ​​in the pressure representation value are respectively increased and decreased by a percentage to set the preset pressure range.

[0049] Figure 3 shows an example of a preset pressure range. In this example, the user first tests themselves three times using a "subjectively comfortable stable force" to obtain preliminary data on their force usage habits. The combined range of these three stable mechanical periods is then used as the basis, with a fixed fluctuation ratio, to form the user's test force range. This range can also be adjusted as the user tests more frequently, gradually forming a more accurate algorithm for the user's force usage habits.

[0050] As shown in FIG3 , after the user presses his skin three times using the telescopic component 120, the pressure sensor 130 can be used to obtain a graph of three pressure data sets corresponding to the three pressing processes. The processor can use existing or future algorithms to respectively determine the pressure stabilization period and the pressure characterization value of the three pressure data sets (which can be the pressure average value within the pressure stabilization period), and then set the preset pressure range by floating up and down the maximum value (in this example, the pressure characterization value 2 of the second press) and the minimum value (in this example, the pressure characterization value 3 of the third press) of the three pressure characterization values ​​by a percentage. The percentages of floating up and down can be the same or different, for example, between 0% and 15%.

[0051] In some embodiments of the present application, the pressure characterization value of the pressure stabilization period of the pressure data set used in the process of setting the preset pressure interval can be limited to a predetermined threshold range. The predetermined threshold range can be set based on experience, for example, it can be determined based on the force habits of normal people. If the user uses a force beyond the normal range to press the telescopic component 120, the pressure data can be directly judged as invalid, that is, it is not used to participate in the setting process of the preset pressure interval. In other words, the processor can be configured to process the pressure data set that falls within the predetermined threshold range among multiple pressure data sets to determine its pressure stabilization period and its pressure characterization value, and then determine the preset pressure interval based on the pressure characterization value.

[0052] In some embodiments of the present application, when a user presses their skin with telescopic member 120, the normal of skin contact surface 121 is substantially perpendicular to the user's skin. In actual use, the user can adjust skin contact surface 121 as perpendicularly as possible to the skin surface, and apply force evenly along the normal direction of the contact surface, so that the skin feels noticeable pressure without discomfort. This allows for a more reasonable determination of the preset pressure range, allowing subsequent use of a pressure filter to filter out test results indicating unreasonable force application.

[0053] In some embodiments of the present application, the skin detection device 140 may include an electrode sensor 141 , a capacitive fingerprint detector 142 , and an optical sensor 143 , as shown in FIG1 .

[0054] Electrode sensor 141 can be disposed within skin contact surface 121 and used to detect capacitance data from the user's skin. Capacitance data is closely related to the moisture content of the user's skin. Generally speaking, the wetter the skin, the higher the capacitance value, and vice versa. Therefore, existing or future algorithms can be used to process the capacitance data from the user's skin to determine the moisture index of the user's skin.

[0055] Capacitive fingerprint sensor 142 can be disposed within skin contact surface 121 and used to detect texture data of the user's skin. Texture data can characterize the elasticity, pores, and / or fine lines of the user's skin. Therefore, existing or future algorithms can be used to process the user's skin texture data to obtain an elasticity index, pore index, and / or fine line index for the user's skin.

[0056] The optical sensor 143 can detect optical feedback data of the user's skin via a transparent window 144 provided on the skin contact surface 121. The capacitive data, texture data, and optical data can be correlated via a timestamp to form a set of skin data. In this way, the skin data set can include multiple sets of skin data.

[0057] The optical sensor 143 may include a photosensor that, upon being stimulated by light, can instantly provide feedback on the intensity of the received light. The optical sensor 143 may include a cavity with only one windowed surface, with the photosensor and light source (e.g., a white light emitter) placed at the bottom and the window at the top. When the windowed surface is in contact with the skin, the cavity is closed. At this time, the white light emitter is turned on to illuminate the cavity with a fixed output. The brightness of the cavity is affected by the skin color (grayscale), which feeds back different signals to the photosensor, thereby determining the whiteness of the skin contact surface. In other words, the optical sensor 143 can be configured such that: the light source emits light to illuminate the user's skin through the transparent window 144, and the photosensor then detects the light reflected from the user's skin through the transparent window 144 to generate optical feedback data. Subsequently, an existing or future algorithm can be used to process the optical feedback data of the user's skin to obtain the whiteness index of the user's skin.

[0058] In some embodiments of the present application, the oil index of the user's skin can be further evaluated based on at least one of the moisture index, whiteness index, elasticity index, pore index and fine line index using an existing or future algorithm.

[0059] In some embodiments of the present application, the electrode sensor 141 and the optical sensor 143 may start detection in response to the pressure sensor 130 detecting pressure, and the capacitive fingerprint detector 142 may perform detection in response to the pressure detected by the pressure sensor being within a predetermined pressure range.

[0060] See Figure 4, which schematically illustrates an example of how to use a pressure screen to screen skin detection data. In Figure 4, data acquired over time by the capacitive fingerprint detector 142, the electrode sensor 141, and the pressure sensor 130 are shown respectively. In this example, the sampling frequency of the electrode sensor is approximately 660 Hz, the sampling frequency of the optical sensor is approximately 660 Hz (for the sake of simplicity, the chart of optical feedback data is not shown in Figure 4), and the sampling frequency of the capacitive fingerprint detector is approximately 5 Hz. The electrode sensor 141 and the optical sensor 143 are tested and screened synchronously with the pressure sensor 130, and the capacitive fingerprint detector 142 is started when the pressure value of the pressure sensor 130 reaches a qualified mechanical range. The capacitance data, texture data, and optical data at the same time constitute a set of skin data, and the skin data set may include multiple sets of skin data at different times.

[0061] As described above, the processor can process the pressure dataset to determine a pressure stabilization period and its pressure-characterizing value. In this example, because the pressure-characterizing value is within the preset pressure range, the detection is valid. Therefore, the processor can process multiple sets of skin data corresponding to the pressure stabilization period in the skin dataset to obtain skin characteristics.

[0062] In some embodiments of the present application, the processor may be further configured to analyze multiple sets of skin data corresponding to different time points over a period of time and combine the data with environmental parameters to determine a dynamic change parameter of the user's skin. The dynamic change parameter may include water retention capacity, water loss rate, oil production rate, or temperature-skin change rate.

[0063] In some embodiments of the present application, the system may further include a formulation module. The formulation module can determine the skin care product formula and dosage suitable for the user's skin based on the skin characteristics. In this way, the system 100 can use the qualified sensor data (i.e., the pressure characterization value is within the preset pressure range and corresponds to the pressure stability period) to obtain the original parameter value through the algorithm, and then convert it into an index representing the skin characteristics through the algorithm. Based on this, the corresponding skin care product formula and dosage are calculated for the user.

[0064] As an example, skin detection can match the user's daily skin care time, such as (1) when getting up in the morning without any washing and skin care actions (washing the face and skin care actions after the detection), and (2) after washing the skin every night (sleeping after using skin care products after the detection). These two tests are an operation closed loop, which can effectively detect the changes in skin properties under the influence of minimal external factors. With daily detection and skin care, the pressure sensor 130 algorithm can first be optimized to obtain a mechanical stable period interval (i.e., a preset pressure interval) that better matches the user's own usage habits, so that the user's subjective influence during the detection process is smaller. At the same time, dynamic data comparisons for the same user will be obtained: (1) changes in skin parameters from the user's sleep to getting up in the morning, a period with relatively small objective influence and stability; (2) changes in skin parameters at the same time point every day (and the objective conditions of the skin at this time point are relatively stable and consistent). The above two dynamic data comparisons not only reflect the dynamic parameters of the skin, but also feedback the actual efficacy of the skin care products for the user. The user's skin care product formula is further optimized through the data changes in each cycle (generally 28 days).

[0065] In some embodiments of the present application, the system 100 may further include a plurality of auxiliary pressure sensors 150. The plurality of auxiliary pressure sensors 150 may be evenly distributed around the pressure sensor 130 to detect pressure at multiple points when pressure is applied to the skin contact surface 121. As an example, as shown in FIG1 , the auxiliary pressure sensor 150 may be arranged below the spring 111. Note that FIG1 only shows one possible arrangement of the auxiliary pressure sensor 150. Those skilled in the art will appreciate that the auxiliary pressure sensor 150 may also be provided at other locations and have a variety of arrangements to measure the pressure exerted on the skin contact surface 121 of the telescopic component 120 at multiple points. The present application is not intended to limit the specific location and arrangement of the auxiliary pressure sensor 150.

[0066] The auxiliary pressure sensor 150 can operate simultaneously with the pressure sensor 130. When the user pushes the telescopic component 120 against the facial skin, the auxiliary pressure sensors 150 will simultaneously provide their respective sensed pressure data. The system 100 will compare the corresponding data sets, obtain the pressure difference, and compare it with the data from the pressure sensor 130. If the pressure difference exceeds a certain threshold, it can be determined that the user's force is uneven and a retest is required. This method can effectively prevent the user from accidentally tilting the telescopic component 120 during the test.

[0067] In some embodiments of the present application, the pressure data provided by the pressure sensor 130 and the multiple auxiliary pressure sensors 150 can also be analyzed to assist in determining the elasticity index of the user's skin. The final travel of the pressure sensor 130 after receiving pressure from the user is fixed. This travel, combined with the measured pressure differences between the user's stable periods and the pressure differences between the auxiliary pressure sensors 150, can assist in analyzing and calculating the skin elasticity index.

[0068] In some embodiments of the present application, system 100 may also include a user interface for displaying information to the user. For example, the user interface may be located on main body 110; alternatively, the user interface may be provided by an application on a user device (e.g., a smartphone) that communicates with system 100. The displayed information may include at least one of the following: moisture index, oil content index, whiteness index, elasticity index, pore index, fine line index, moisture retention capacity, moisture loss rate, oil production rate, temperature-skin change rate, and a retest prompt.

[0069] One or more of the techniques and / or embodiments described above may be implemented in hardware and / or software or include hardware and / or software, for example, as modules or devices executed on one or more electronic devices. Of course, the modules or devices described herein illustrate various functions and are not intended to limit the structure and function of any embodiment. Rather, the functions of each module or device may be divided and performed differently by more or fewer modules or devices according to various design considerations.

[0070] The techniques described herein may be implemented in hardware, software, firmware, or any combination thereof, unless specifically described as being implemented in a particular manner. Any features described as modules or components may also be implemented together in an integrated logic device, or separately as discrete but interoperable logic devices. If implemented in software, the technology may be implemented at least in part by a non-transient processor-readable storage medium comprising instructions that, when executed, perform one or more of the above methods. The non-transient processor-readable data storage medium may form part of a computer program product that may include packaging material. The program code may be implemented in a high-level procedural programming language or an object-oriented programming language to communicate with a processing system. If desired, the program code may also be implemented in assembly language or machine language. In fact, the mechanisms described herein are not limited to the scope of any particular programming language. In any case, the language may be a compiled language or an interpreted language.

[0071] One or more aspects of at least some embodiments may be implemented by representative instructions stored on a machine-readable medium that represent various logic within a processor, which when read by a machine causes the machine to fabricate logic for performing the techniques described herein.

[0072] Such machine-readable storage media may include, but are not limited to, a non-transitory tangible arrangement of articles manufactured or formed by a machine or apparatus, including storage media such as: a hard disk; any other type of disk, including a floppy disk, an optical disk, a compact disk read-only memory (CD-ROM), a compact disk rewritable (CD-RW), and a magneto-optical disk; semiconductor devices such as read-only memory (ROM), random access memory (RAM) such as dynamic random access memory (DRAM) and static random access memory (SRAM), erasable programmable read-only memory (EPROM), flash memory, electrically erasable programmable read-only memory (EEPROM); phase change memory (PCM); a magnetic or optical card; or any other type of medium suitable for storing electronic instructions.

[0073] Instructions may be further sent or received via a communication network using a transmission medium via a network interface device utilizing any one of a number of transmission protocols (e.g., Frame Relay, Internet Protocol (IP), Transmission Control Protocol (TCP), User Datagram Protocol (UDP), Hypertext Transfer Protocol (HTTP), etc.).

[0074] Example communication networks may include a local area network (LAN), a wide area network (WAN), a packet data network (e.g., the Internet), a mobile telephone network (e.g., a cellular network), a plain old telephone (POTS) network, and a wireless data network (e.g., a wireless network called The Institute of Electrical and Electronics Engineers (IEEE) 802.11 series of standards, known as ), IEEE 802.16 series of standards, IEEE 802.15.4 series of standards, peer-to-peer (P2P) networks, etc. In an example, the network interface device may include one or more physical jacks (e.g., Ethernet, coaxial, or telephone jacks) or one or more antennas for connecting to the communication network. In an example, the network interface device may include multiple antennas for wireless communication using at least one of single-input multiple-output (SIMO), multiple-input multiple-output (MIMO), or multiple-input single-output (MISO) technologies.

[0075] The term "transmission medium" shall be taken to include any intangible medium that can store, encode, or carry instructions for execution by a machine and includes digital or analog communications signals or other intangible medium used to facilitate communication of such software.

[0076] Thus far, the system for skin detection according to the present application has been described. The system of the present application is characterized in that: when the telescopic component is in a retracted position due to pressure from the user's skin, the pressure sensor and the skin detection device can operate simultaneously to obtain corresponding data. This allows the pressure to be used as a sieve to filter the skin detection data in subsequent data processing, thereby minimizing or eliminating the influence of subjective physical conditions (primarily reflected in mechanics) when the detection device is used.

[0077] Compared with the prior art, the beneficial technical effects provided by the present application may be: (1) "Pressure screen": by using a mechanical sensor, a "pressure screen" is formed only for the subject himself, reducing the test data differences that may be caused by the user's personal force habits, making the test results more accurate; (2) Dynamic parameters of "comparison with oneself": by comparing the numbers obtained by the user's own tests at different time points, combined with some objective conditions, the dynamic parameters of the test object are formed, and more real and effective feedback is given to the subject's skin condition, dynamic skin parameters such as: "water retention capacity", "water loss rate", "oil production rate", "temperature-skin change rate", etc.; (3) "Quantitative efficacy feedback": by combining skin care formulas, a quantitative efficacy model based on the user's own skin data and skin care products is formed, forming a spiral upward system between "testing-formula", thereby more effectively optimizing the formula, and also allowing users to personally feel the intuitive efficacy of skin care products.

[0078] Some exemplary embodiments have been described above. However, it should be understood that various modifications may be made to the exemplary embodiments described above without departing from the spirit and scope of the present invention. For example, if the described techniques are performed in a different order and / or if the components of the described systems, architectures, devices, or circuits are combined in different ways and / or replaced or supplemented with other components or their equivalents, suitable results may be achieved. Accordingly, these modified alternative embodiments also fall within the scope of protection of the claims.

Claims

1. A system for skin detection, comprising: main body; a telescopic member that is telescopic relative to the body and has a skin contacting surface, wherein the telescopic member is in an extended position when no pressure is applied to the skin contacting surface and is in a retracted position when pressure is applied to the skin contacting surface; a pressure sensor, the pressure sensor being used to detect the pressure when the skin contact surface contacts the user's skin to obtain a pressure data set; as well as A skin detection device is used to obtain a skin data set when the skin contact surface contacts the user's skin.

2. The system according to claim 1, characterized in that The system also includes a processor configured to process the pressure data set to determine a pressure stabilization period and a pressure representative value thereof.

3. The system according to claim 2, characterized in that The processor is configured to determine whether the pressure characterization value is within a preset pressure interval, and when the pressure characterization value is within the preset pressure interval, process multiple groups of skin data corresponding to the pressure stabilization period in the skin data set to obtain skin characteristics.

4. The system according to claim 3, characterized in that The preset pressure range is set in the following manner: Using the telescopic component to press the user's skin to obtain a pressure data set; Processing the pressure data set by the processor to determine a pressure stabilization period of the pressure data set and a pressure representation value thereof; and The preset pressure range is set by respectively increasing or decreasing the pressure characterization value by a percentage.

5. The system according to claim 4, characterized in that The preset pressure range is further set in the following manner: Using the telescopic component to press the user's skin multiple times to obtain multiple pressure data sets; Processing the plurality of pressure data sets by the processor to determine a pressure stabilization period and a pressure representation value of each pressure data set; and The preset pressure range is set by respectively increasing and decreasing the maximum value and the minimum value of the pressure characterization value by a percentage.

6. The system according to claim 4 or 5, characterized in that The pressure characterization value is within a predetermined threshold range.

7. The system according to claim 4 or 5, characterized in that When the user presses his skin with the retractable component, the normal of the skin contact surface is substantially perpendicular to the user's skin.

8. The system according to claim 3, characterized in that The skin detection device comprises: an electrode sensor disposed within the skin contact surface and configured to detect capacitance data of the user's skin; a capacitive fingerprint sensor disposed within the skin contact surface and configured to detect texture data of the user's skin; and an optical sensor for detecting optical feedback data of the user's skin via a transparent window disposed on the skin contact surface, The capacitance data, the texture data and the optical data are associated via a time stamp to form a set of skin data, and the skin data set includes a plurality of sets of skin data.

9. The system according to claim 8, characterized in that The optical sensor comprises a light source and a light-sensitive element, wherein the optical sensor is configured to: The light source emits light to illuminate the user's skin through the transparent window; and The light reflected from the user's skin through the transparent window is detected by the photosensitive element to generate the optical feedback data.

10. The system according to claim 8, characterized in that The electrode sensor and the optical sensor perform detection in response to the pressure sensor detecting the pressure, and the capacitive fingerprint detector performs detection in response to the pressure detected by the pressure sensor being within a predetermined pressure range.

11. The system according to claim 8, characterized in that The skin properties include at least one of the following: a moisture index, an oil index, a whiteness index, an elasticity index, a pore index, and a fine line index.

12. The system according to claim 3, characterized in that The processor is configured to analyze multiple sets of skin data corresponding to different time points over a period of time and determine the dynamic change parameters of the user's skin in combination with environmental parameters, wherein the dynamic change parameters include moisture retention capacity, moisture loss rate, oil production rate or temperature-skin change rate.

13. The system of claim 12, wherein: The period of time is 6 hours, 12 hours, 1 day, 7 days, 28 days or longer.

14. The system of claim 3, wherein: The system further comprises a formula module, which determines a formula and a dosage of a skin care product suitable for the user's skin according to the skin characteristics.

15. The system of claim 1, wherein: The system also includes a plurality of auxiliary pressure sensors evenly distributed around the pressure sensor to detect pressure at multiple points when pressure is applied to the skin contacting surface.

16. The system of claim 15, wherein: The pressure data provided by the pressure sensor and the plurality of auxiliary pressure sensors are analyzed to determine whether the force on the skin contact surface is uniform, and when the force on the skin contact surface is uneven, the system is configured to prompt the need for re-measurement.

17. The system of claim 16, wherein: The pressure data provided by the pressure sensor and the plurality of auxiliary pressure sensors are analyzed to assist in determining the elasticity index of the user's skin.

18. The system of claim 1, wherein: The system further includes a user interface, which is disposed on the main body or provided by an application on a user device in communication with the system.

Images