Skin detection system and skin detection equipment

Abstract

The utility model discloses a skin detection system and skin detection equipment, the skin detection system comprises an electrode tip, an electrode switching circuit, a detection module and a controller, the electrode tip is provided with N detection electrodes, the N detection electrodes are used for being in direct contact with the skin, and N is greater than or equal to 2; the detection module is connected with the N detection electrodes through the electrode switching circuit; the controller is connected with the electrode switching circuit and the detection module and used for controlling the detection module and the at least one detection electrode to execute detection operation. According to the skin detection system, the skin attaching condition can be accurately detected, misjudgment detection is reduced, partition control over the electrode tips can be achieved by switching the electrode switching circuit, and the detection precision is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of beauty instruments, in particular to a skin detection system and a skin detection device. Background Art

[0002] At present, skin detection instruments such as beauty instruments on the market usually need to detect that the care head is close to the skin before starting to work during the skin care process. And the electrode heads of most detection devices on the market are usually relatively large, with several detection electrodes distributed thereon, and when using such a device to detect the skin, usually a single-point capacitive touch button method is used to detect whether the care head is attached to the skin.

[0003] In the prior art, due to the relatively large electrode head on the beauty instrument and the various shapes of the human face, when using the instrument, it often occurs that several detection electrodes on the electrode head fail to contact the facial skin. If some detection electrodes are in contact with the skin and some are not, it may cause detection errors due to local contact. And due to problems such as low sensitivity of the touch button, obstruction of the care head housing assembly, weather, and the influence of gel essence, the skin attachment detection often fails, resulting in misjudgment. Summary of the Utility Model

[0004] The utility model aims to at least solve one of the technical problems existing in the prior art. For this reason, an object of the utility model is to propose a skin detection system, which can accurately detect the skin attachment situation, reduce misjudgment detection, and can realize the zoning control of the electrode head through a switching electrode switching circuit, effectively improving the detection accuracy.

[0005] Another embodiment of the utility model also proposes a skin detection device.

[0006] To achieve the above object, the skin detection system proposed in the first aspect embodiment of the utility model includes: an electrode head, on which N detection electrodes are arranged, and the N detection electrodes are used for direct contact with the skin, where N≥2; an electrode switching circuit and a detection module, the detection module is connected to the N detection electrodes through the electrode switching circuit; a controller, the controller is connected to the electrode switching circuit and the detection module, and is used to control the detection module and at least one of the detection electrodes to perform detection operations.

[0007] According to the skin detection system proposed by the embodiments of the present utility model, the detection electrodes on the electrode head can accurately detect skin attachment by directly contacting the skin, reducing misjudgment detection. And by setting an electrode switching circuit connected to N detection electrodes, and controlling the electrode switching circuit to switch different detection electrodes to perform detection operations, the zonal control of the electrode head can be achieved, thereby effectively improving the detection accuracy of the skin detection system. Moreover, by reusing the electrode head for skin detection, the user's care experience is greatly improved without increasing costs.

[0008] In some embodiments of the present utility model, the electrode switching circuit includes: an electrode interface adapted to be connected to the detection module; N switching switches, the first ends of the N switching switches are respectively connected to the N detection electrodes in one-to-one correspondence, the second ends of the N switching switches are connected to the electrode interface, and the control ends of the N switching switches are connected to the controller.

[0009] In some embodiments of the present utility model, when the controller controls at least one of the detection electrodes to perform a detection operation, it is used to control the switching switch corresponding to the detection electrode in direct contact with the skin to close, and control the other switching switches to open.

[0010] In some embodiments of the present utility model, the detection module includes: an impedance detection unit, an impedance detection interface is provided in the impedance detection unit, the impedance detection interface is adapted to be connected to the electrode interface, and the control end of the impedance detection unit is connected to the controller; a skin attachment detection unit, a skin attachment detection interface is provided in the skin attachment detection unit, the skin attachment detection interface is adapted to be connected to the electrode interface, and the control end of the skin attachment detection unit is connected to the controller.

[0011] In some embodiments of the present utility model, when the controller controls the working state of the detection module, it is used to control at least one of the impedance detection unit and the skin attachment detection unit to operate.

[0012] In some embodiments of the present utility model, the impedance detection unit includes: an impedance detection circuit, the control end of the impedance detection circuit is connected to the controller; a protection unit, the protection unit is provided between the impedance detection circuit and the impedance detection interface, and the control end of the protection unit is connected to the controller.

[0013] In some embodiments of the present utility model, the detection module further includes: an EMS control module, an output current interface is provided in the EMS control module, the output current interface is adapted to be connected to the electrode interface, and the control end of the EMS control module is connected to the controller.

[0014] In some embodiments of the present utility model, when the controller controls the working state of the detection module, it is used to control the EMS control module to output an EMS microcurrent.

[0015] To achieve the above object, an embodiment of the second aspect of the present utility model further provides a skin detection device, including: a device body; the skin detection system according to any one of the above embodiments, and the skin detection system is arranged on the device body.

[0016] According to the skin detection device proposed by the embodiment of the present utility model, by adopting the skin detection system of any one of the above embodiments, the skin attachment condition can be accurately detected, misjudgment detection can be reduced, and thus the detection accuracy of the skin detection device can be effectively improved. Moreover, by reusing the electrode head for skin detection, the user's care experience is greatly improved without increasing the equipment cost.

[0017] In some embodiments of the present utility model, the skin detection device includes a beauty instrument.

[0018] The additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, wherein:

[0020] Figure 1 It is a block diagram of a skin detection system according to an embodiment of the present utility model;

[0021] Figure 2 It is a schematic diagram of a skin detection system according to an embodiment of the present utility model;

[0022] Figure 3 It is a block diagram of a skin detection device according to an embodiment of the present utility model.

[0023] Reference Signs:

[0024] Skin detection device 100;

[0025] Skin detection system 10, device body 20;

[0026] Electrode head 1, electrode switching circuit 2, detection module 3, controller 4;

[0027] Detection electrode 11, electrode interface 21, changeover switch 22, impedance detection unit 31, skin attachment detection unit 32, EMS control module 33;

[0028] The first electrode interface 211, the second electrode interface 212, the impedance detection circuit 311, the protection unit 312, the first impedance detection interface P1, the second impedance detection interface P2, the first skin contact detection interface Q1, the second skin contact detection interface Q2, the first output current interface M1, and the second output current interface M2;

[0029] Detection electrodes a1, a2, a3, a4, a5, a6, a7, a8, switching switches b1, b2, b3, b4, b5, b6, b7, b8. Detailed implementation manners

[0030] The embodiments of the present invention will be described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. The embodiments of the present invention will be described in detail below.

[0031] The electrode heads on existing skin detection instruments such as beauty instruments are relatively large, and there are several detection electrodes distributed thereon. Due to the different shapes of the human face, when using the instrument, it often occurs that some of the detection electrodes on the electrode head fail to contact the facial skin. If some detection electrodes are in contact with the skin while others are not, it may cause detection errors due to local contact. Based on this, the present invention proposes a skin detection system. By adopting a sub-region control method and controlling the detection electrodes on the electrode head, it is possible to make the detection electrodes in the part in contact with the skin work, while other detection electrodes do not work, thereby realizing multi-point detection and refined detection, and improving the accuracy of the detection results. The following will refer to Figure 1 and Figure 2 to describe the skin detection system according to the embodiments of the present invention.

[0032] In some embodiments of the present invention, as Figure 1 shown, it is a block diagram of a skin detection system according to an embodiment of the present invention. Among them, the skin detection system 10 includes an electrode head 1, an electrode switching circuit 2, a detection module 3, and a controller 4.

[0033] Among them, N detection electrodes 11 are arranged on the electrode head 1. The N detection electrodes 11 are used to directly contact the skin, where N≥2. It can be understood that the detection electrodes 11 are the nursing electrodes, usually metal electrodes. When the detection electrodes are in contact with the human skin, they are used to detect the human skin. Since the detection area of a single detection electrode is limited, multiple detection electrodes can be arranged on the electrode head 1 to increase the detection area of the entire electrode head 1. Among them, an existing EMS electrode head can be used as the detection carrier. The value of N can be 2 or 4 or 6 or 8, etc., and no specific limitation is made here. In the embodiment of the present invention, the case where the number of detection electrodes 11 is 8 is taken as an example for illustration.

[0034] In some embodiments, the detection module 3 is connected to the N detection electrodes 11 through the electrode switching circuit 2. Among them, the detection module 3 can be used to output and receive detection signals and / or detection currents, etc. The electrode switching circuit 2 is responsible for switching different detection electrodes 11 on the electrode head 1 to different application circuits to realize the detection function of the human skin. When the electrode switching circuit 2 is turned on, the detection module 3 can energize the detection electrodes 11 and send detection signals to the corresponding detection electrodes 11 to realize the regional detection of the human skin.

[0035] Among them, the controller 4 is connected to the electrode switching circuit 2 and the detection module 3, and is used to control the detection module 3 and at least one detection electrode to perform detection operations.

[0036] It can be understood that when the controller 4 is connected to the motor switching circuit 2, it can control the switching state of the electrode switching circuit 2, and further control the N detection electrodes 11 to perform detection operations. For example, by controlling the conduction state of the electrode switching circuit 2, the detection electrodes in contact with the skin are controlled to work, while other detection electrodes do not work. And when the controller 4 is connected to the detection module 3, it can control the detection module 3 to start or stop working, and can also adjust the intensity of the detection signal output by the detection module 3 and / or the magnitude of the detection current, etc., so as to adjust the output energy of the detection electrodes to different areas of the skin, so as to realize multi-point detection and refined detection, and improve the accuracy of the detection results.

[0037] According to the skin detection system 10 proposed by the embodiment of the present invention, the detection electrodes 11 on the electrode head 1 can accurately detect the skin attachment by directly contacting the skin, reduce misjudgment detection, and by setting the motor switching circuit 2 to be connected to the N detection electrodes 11, and controlling the electrode switching circuit 2 to switch different detection electrodes 11 to perform detection operations, the partition control of the electrode head 1 can be realized, and further the detection accuracy of the skin detection system 10 can be effectively improved. And by reusing the electrode head 1 for skin detection, without increasing the cost, the user's nursing experience is greatly improved.

[0038] In some embodiments of the present utility model, it can be further combined with Figure 2 Understand the skin detection system of the embodiments of the present utility model. FIG. 2 is a schematic diagram of the skin detection system of the following embodiments of the present utility model according to the embodiments of the present utility model.

[0039] Among them, the electrode switching circuit 2 includes an electrode interface 21 and N switching switches 22. The electrode interface 21 is adapted to be connected to the detection module 3. It can be understood that the electrode interface 21 is a circuit interface, and the number thereof can be one or more.

[0040] Furthermore, the first ends of the N switching switches 22 are respectively connected to the N detection electrodes 11 in one-to-one correspondence. The second ends of the N switching switches 22 are connected to the electrode interface 21, and the control ends of the N switching switches 22 are connected to the controller 4. By respectively connecting the first ends of the N switching switches 22 to the N detection electrodes 11 in one-to-one correspondence, when any one or several of the switching switches are turned on, the detection electrodes connected thereto are energized to work, while for the non-conductive switching switches, the detection electrodes connected thereto do not work. Based on this, when the controller 4 controls at least one detection electrode 11 to perform a detection operation, the switching switch corresponding to the detection electrode in direct contact with the skin is controlled to close, and the other switching switches are controlled to open, thereby enabling the control of the detection operation of each detection electrode 11.

[0041] Furthermore, for the electrode switching circuit 2, in addition to including N switching switches 22, it also includes other components. If it is connected to one electrode interface 21, when the controller 4 controls each detection electrode 11 first, control signals and the like will all pass through this electrode interface 21. When there are many signals passing through this electrode interface 21 at the same time, it may cause control delays and other situations. Therefore, the number of electrode interfaces 21 can be set as needed.

[0042] In some embodiments of the present utility model, as Figure 2 shown, taking the number of detection electrodes 11 as 8, the number of switching switches 22 as 8, and the electrode interface 21 including a first electrode interface 211 and a second electrode interface 212 as an example for description.

[0043] Specifically, the N detection electrodes 11 include detection electrodes a1 - detection electrode a8, the switching switches 22 include switching switches b1 - switching switches b8, and the switching switches 22 include switching switches b1 - switching switches b8 and are respectively arranged in one-to-one correspondence with the detection electrodes a1 - detection electrode a8.

[0044] In some embodiments of the present utility model, after the system 10 is powered on, when the user uses the electrode head 1 for care, the controller 4 will switch by controlling the switch 22 in the electrode switching circuit 2 to select the detection electrodes 11 distributed on the electrode head 1, so as to switch the detection electrodes 11 in different regions, achieve multi-point detection and refined detection, and improve the accuracy of the detection results.

[0045] In some other embodiments of the present utility model, the detection module 3 includes an impedance detection unit 31 and a skin contact detection unit 32. Among them, an impedance detection interface is provided in the impedance detection unit 32, and the impedance detection interface is adapted to be connected to the electrode interface 21. The control end of the impedance detection unit 32 is connected to the controller 4; a skin contact detection interface is provided in the skin contact detection unit 32, and the skin contact detection interface is adapted to be connected to the electrode interface 21. The control end of the skin contact detection unit 32 is connected to the controller 4. Specifically, the detection sensors in the prior art are usually arranged inside the device body. Due to the separation of the outer shell, it is easy to be misjudged by the environmental influence during detection. As Figure 2 shown, for the detection module 3 of the embodiment of the present utility model, whether it is impedance detection or skin contact detection, without occupying a separate detection sensor, the original EMS electrode head can be reused as a detection carrier to obtain detection data. Compared with the original traditional detection sensor, the embodiment of the present utility model can directly contact the skin by directly reusing the electrode head 1, realizing barrier-free skin contact, which is beneficial to improving the detection accuracy.

[0046] Furthermore, since the electrode interface 21 is provided with a first electrode interface 211 and a second electrode interface 212, the impedance detection interface of the impedance detection unit 32 can be correspondingly provided with a first impedance detection interface P1 and a second impedance detection interface P2, and the skin contact detection interface of the skin contact detection unit 32 can be provided with a first skin contact detection interface Q1 and a second skin contact detection interface Q2.

[0047] Among them, the impedance detection unit 31 includes an impedance detection circuit 311 and a protection unit 312. The control end of the impedance detection circuit 311 is connected to the controller 4. The impedance detection circuit 312 can detect the impedance of the skin by using a differential amplifier circuit and a sine wave excitation signal, and this impedance can be used to judge the skin contact detection. The protection unit 312 is arranged between the impedance detection circuit 311 and the impedance detection interface, and the control end of the protection unit 312 is connected to the controller 4. Among them, the protection unit 312 can include two protection switches, and the two protection switches are respectively arranged between the impedance detection circuit 311 and the first impedance detection interface P1 and the second impedance detection interface P2. The function of the protection unit 312 is to protect the impedance detection circuit 311. For example, before the controller 4 controls the impedance detection circuit 311 to work, the protection switch is in the off state to prevent the impact on the impedance detection circuit 311 caused by excessive current. Based on this, combined with the function of regional detection in the above embodiment, the impedance detection in the embodiment of the present invention can also be used for regional detection. When the controller 4 controls the impedance detection unit 31 to work, it can adjust the output energy of different regions of the skin in real time.

[0048] A capacitive sensor is arranged in the skin contact detection unit 32 to realize capacitive skin contact detection. Specifically, combined with the function of regional detection in the embodiment of the present invention, while the controller 4 controls the working state of the skin contact detection unit 32, the switching switch for different nursing regions is used to detect the real-time skin contact situation of different regions.

[0049] Further, when the controller 4 controls the working state of the detection module 3, it is used to control at least one of the impedance detection unit 31 and the skin contact detection unit 32 to operate. Specifically, during the process of detecting the skin, the controller 4 can first control the impedance detection unit 31 to perform regional detection on the skin and collect detection data, and then control the skin contact detection unit 32 to detect the skin and collect detection data. Through algorithm control, the detection data collected twice are calculated by algorithms to judge whether the current electrode head 1 is in contact with the skin. By adopting the methods of dual-mode detection and time-sharing detection for double protection, the calculation of skin contact accuracy is ensured, so as to realize intelligent skin care.

[0050] The skin detection system 10 in the embodiment of the present invention can use the original EMS electrode head as a detection carrier. Without occupying a separate detection sensor, it controls the impedance detection unit 31 and the skin contact detection unit 32 to perform time-sharing switching, and combines the regional detection function in the above embodiment to realize multi-point time-sharing detection of the skin, and always maintains refined detection.

[0051] In some embodiments of the present invention, such as Figure 2As shown, the detection module 3 further includes an EMS control module 33. An output current interface is provided in the EMS control module 33. The output current interface is adapted to be connected to the electrode interface 21, and the control end of the EMS control module 33 is connected to the controller 4. Among them, the EMS control module 33 is used to output EMS micro-current to the electrode head 1. When the controller 4 controls the working state of the detection module 3, it is used to control the EMS control module 33 to output EMS micro-current. For example, the controller 4 can control the EMS control module 33 to work or not work, and adjust the magnitude of the EMS micro-current output by the EMS control module 33.

[0052] Further, as Figure 2 shown, since the electrode interface 21 is provided to include a first electrode interface 211 and a second electrode interface 212, the output current interface of the EMS control module 33 can be correspondingly provided to include a first output current interface M1 and a second output current interface M2.

[0053] Furthermore, when the skin detection system 10 proposed in the embodiment of the present invention controls the electrode switching circuit 2 and the detection module 3 to perform detection operations to achieve multi-point and time-sharing detection of the skin, it can further synchronize the detected data and the information such as whether the electrode head 1 is attached to the skin calculated to a small program, and display the nursing process on the fuselage to show it to the user, so as to improve the intelligence of skin care products.

[0054] Based on the above, the skin detection system 10 of the embodiment of the present invention automatically identifies the skin attachment situation of the electrode head 1 by using a hardware circuit and a software algorithm. By designing the electrode switching circuit 2, different detection electrodes 11 on the electrode head 1 can be switched to different application circuits to achieve zonal detection of the human skin. The hardware circuit adopts a dual-module detection mode, and is switched in time-sharing by controlling the impedance detection unit 31 and the skin attachment situation detection unit 32. Combining with the zonal detection function of the above embodiment, multi-point and time-sharing detection of the skin is realized, and refined detection is always maintained to improve the detection accuracy.

[0055] In some embodiments of the present invention, a skin detection device is further proposed. As Figure 3 shown, it is a block diagram of a skin detection device according to an embodiment of the present invention. Among them, the skin detection device 100 includes a device body 20 and the skin detection system 10 of any embodiment. The skin detection system 10 is provided on the device body 20. Among them, the skin detection device 10 includes a beauty instrument.

[0056] The skin detection device 100 according to the embodiments of the present utility model can accurately detect the skin attachment condition by adopting the skin detection system 10 of any one of the above embodiments, reduce misjudgment detection, and thus effectively improve the detection accuracy of the skin detection device 100. Moreover, by using the reusable electrode head 1 for skin detection, the user's care experience is greatly improved without increasing the equipment cost.

[0057] Other components and operations of the skin detection device 100 according to the embodiments of the present utility model are known to those of ordinary skill in the art and will not be described in detail here.

[0058] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example.

[0059] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the claims and their equivalents.

Claims

1. A skin detection system, characterized in that: include: An electrode head, wherein N detection electrodes are arranged on the electrode head, and the N detection electrodes are used to directly contact the skin, wherein N ≥ 2; An electrode switching circuit and a detection module, wherein the detection module is connected to the N detection electrodes through the electrode switching circuit; A controller, the controller being connected to the electrode switching circuit and the detection module, and being used to control the detection module and at least one of the detection electrodes to perform a detection operation; The electrode switching circuit comprises: An electrode interface, wherein the electrode interface is suitable for connecting with the detection module; N switching switches, wherein the first ends of the N switching switches are connected to the N detection electrodes in a one-to-one correspondence, the second ends of the N switching switches are connected to the electrode interface, and the control ends of the N switching switches are connected to the controller; When the controller controls at least one of the detection electrodes to perform a detection operation, the controller is used to control the switch corresponding to the detection electrode in direct contact with the skin to be closed, and control the other switch to be opened; The detection module comprises: An impedance detection unit, wherein the impedance detection unit is provided with an impedance detection interface, the impedance detection interface is suitable for connecting with the electrode interface, and a control end of the impedance detection unit is connected with the controller; A skin contact detection unit is provided with a skin contact detection interface, the skin contact detection interface is suitable for connecting with the electrode interface, and the control end of the skin contact detection unit is connected with the controller.

2. The skin detection system according to claim 1, characterized in that: When the controller controls the working state of the detection module, it is used to control the operation of at least one of the impedance detection unit and the skin-attaching detection unit.

3. The skin detection system according to claim 1, characterized in that: The impedance detection unit comprises: An impedance detection circuit, wherein a control end of the impedance detection circuit is connected to the controller; A protection unit is provided between the impedance detection circuit and the impedance detection interface, and a control end of the protection unit is connected to the controller.

4. The skin detection system according to claim 1, characterized in that: The detection module also includes: An EMS control module is provided with an output current interface, the output current interface is suitable for connecting with the electrode interface, and the control end of the EMS control module is connected with the controller.

5. The skin detection system according to claim 4, characterized in that: When the controller controls the working state of the detection module, it is used to control the EMS control module to output EMS microcurrent.

6. A skin detection device, characterized in that: include: Equipment body; The skin detection system according to any one of claims 1 to 5, wherein the skin detection system is arranged on the device body.

7. The skin detection device according to claim 6, characterized in that: The skin detection device includes a beauty instrument.

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