First wearable device and wearable action recognition system

Abstract

The utility model provides a first wearable device and a wearable action recognition system, wherein the first wearable device is matched with a second wearable device for use. When the user performs action recognition, the first wearable device and the second wearable device are worn on different side limbs of the user. The second wearable device comprises a second power supply module, an inverter circuit and a contact sending electrode. And the inverter circuit converts the direct current output by the second power supply module into alternating current and applies the alternating current to human tissues of a user through the contact transmitting electrode. The first wearable device comprises a first power supply module; the contact detection electrode is electrically connected with the analog-to-digital conversion circuit, is in direct contact with the skin of the user, and is used for collecting a response voltage signal generated by the human tissue of the user under the alternating current applied by the second wearable device; the analog-to-digital conversion circuit is also electrically connected with the processor and is used for converting the response voltage signal into a digital signal and sending the digital signal to the processor; and the processor is used for identifying user actions according to the digital signals.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent wearable technology, in particular to a first wearable device and a wearable motion recognition system. Background Art

[0002] With the rapid development of smart wearable devices, virtual reality and augmented reality technologies, input methods have also become diverse, such as using the touch screen of the smart wearable device to perform input operations, or using the handle that comes with the smart wearable device and optically tracking hand operations to perform input operations.

[0003] The human body tissue itself has a certain impedance. Generally speaking, the impedance of the human body's limbs is between 120Ω and 700Ω, and the impedance of the torso is between 10Ω and 50Ω. And through relevant research, it is found that the impedance of human tissue may change when a person makes different movements. For example, for the same person, the impedance of human tissue under the action of opening arms is different from that under the action of clapping hands. Based on this, the human action can be identified by detecting the impedance change of the human body, and the command input of the smart device can be realized according to the identified action. At present, some smart wearable devices support the recognition of user actions by detecting the impedance of the human body, but the hardware structure of these existing smart wearable devices is relatively complex and the cost is high, which is not conducive to the promotion of the above functions. Utility Model Content

[0004] The embodiment of the utility model provides a first wearable device and a wearable motion recognition system, which are used to provide a hardware for recognizing user motions.

[0005] The utility model provides a first wearable device, which is used in conjunction with a second wearable device, the first wearable device and the second wearable device are worn on different sides of a user's limbs, and the second wearable device is used to apply an alternating current to the user's human tissue;

[0006] The first wearable device comprises:

[0007] A first power supply module, electrically connected to the analog-to-digital conversion circuit and the processor, and configured to provide power to the analog-to-digital conversion circuit and the processor;

[0008] a contact detection electrode, electrically connected to the analog-to-digital conversion circuit and in direct contact with the user's skin, for collecting a response voltage signal; the response voltage signal is an AC voltage signal generated by the user's human tissue under the AC current applied by the second wearable device;

[0009] The analog-to-digital conversion circuit is also electrically connected to the processor, and is used to convert the response voltage signal collected by the contact detection electrode into a digital signal and send it to the processor;

[0010] The processor is configured to identify a user action based on the digital signal.

[0011] Optionally, the analog-to-digital conversion circuit is a touch chip;

[0012] The first wearable device includes 4 contact detection electrodes;

[0013] The 4 contact detection electrodes are respectively electrically connected to the uniquely corresponding analog input pins on the touch chip.

[0014] As an optional implementation, the first wearable device further includes a housing, and the housing includes a contact portion that directly contacts the user's body tissue during the use of the first wearable device;

[0015] The first contact detection electrode is disposed on the contact portion, and the first contact detection electrode is at least part of the contact detection electrodes of the first wearable device.

[0016] As an optional implementation, the first wearable device further includes a housing and a wearing fastening band;

[0017] The wearing fastening band includes a wearing fastening band body, a fastening buckle, second connection contacts disposed on the wearing fastening band body and corresponding one-to-one to the second contact detection electrodes, and leads embedded in the wearing fastening band body and corresponding one-to-one to the second contact detection electrodes; wherein, the second contact detection electrodes are at least part of the contact detection electrodes of the first wearable device;

[0018] The housing includes a wearing fastening band connection portion and first connection contacts corresponding one-to-one to the second contact detection electrodes; the wearing fastening band connection portion is mechanically connected to the wearing fastening band body; the first connection contacts corresponding to the same second contact detection electrode are electrically connected to the second connection contacts;

[0019] The second contact detection electrode is disposed on the fastening buckle; for any second contact detection electrode, the second contact detection electrode is electrically connected to the second connection contact corresponding to the second contact detection electrode through the corresponding lead.

[0020] Furthermore, as an optional implementation, the wearing fastening band further includes a limit buckle, the wearing fastening band body includes a first connection buckle having a first positioning hole, the wearing fastening band connection portion includes a second connection buckle having a second positioning hole, the first connection buckle and the second connection buckle are inserted into each other, and the limit buckle locks the first connection buckle and the second connection buckle by passing through the first positioning hole and the second positioning hole at the same time, so as to realize the mechanical connection between the wearing fastening band connection portion and the wearing fastening band body.

[0021] Further, as an alternative implementation, the wearing fastening belt body includes a housing connecting portion that matches the shape of the wearing fastening belt connecting portion, and the housing connecting portion is elastic. The wearing fastening belt body mechanically connects to the wearing fastening belt connecting portion by elastically embedding the wearing fastening belt connecting portion through the elasticity of the housing connecting portion.

[0022] Further, as an alternative implementation, the wearing fastening belt body includes a third connecting buckle with a recessed portion; the wearing fastening belt connecting portion includes a connecting groove, a hook-shaped limiting member, and an elastic member. One end of the hook-shaped limiting member in the target direction is a hook-shaped structure, and the hook-shaped structure is snap-fitted with the recessed portion to achieve mechanical connection between the wearing fastening belt body and the wearing fastening belt connecting portion; the pressing end of the hook-shaped limiting member opposite to the hook-shaped structure in the target direction penetrates the first end surface of the connecting groove, and the elastic member is disposed between the second end surface of the connecting groove and the hook-shaped structure for fastening the snap-fitting connection between the hook-shaped structure and the recessed portion when the user does not press the pressing end; wherein the second end surface is opposite to the first end surface.

[0023] Optionally, the first wearable device further includes: a heart rate and blood oxygen detection module, electrically connected to the first power module and the processor respectively, for detecting the user's heart rate and / or blood oxygen saturation.

[0024] Optionally, the first wearable device further includes: a temperature detection module, electrically connected to the first power module and the processor respectively, and in direct contact with the user's skin, for detecting the temperature of the user's skin.

[0025] Optionally, the first power module includes a magnet and a charging circuit;

[0026] The magnet is used for magnetic connection with a charger for use with the first wearable device.

[0027] Optionally, the first wearable device further includes: a communication module, electrically connected to the first power module and the processor respectively; the communication module includes at least one of the following: a cellular mobile network communication module, a Bluetooth communication module, a wireless local area network WLAN communication module, a narrowband Internet of Things NB-IoT communication module, a ZigBee communication module, a LoRa communication module, an infrared communication module, a satellite communication module.

[0028] Optionally, the first wearable device further includes: a satellite positioning module, electrically connected to the first power module and the processor respectively, for determining the geographical location where the first wearable device is located.

[0029] Optionally, the first wearable device further includes: a human-computer interaction module, which is electrically connected to the first power module and the processor respectively; the human-computer interaction module includes at least one of the following: a display screen, a vibration motor, a speaker, and a microphone.

[0030] Based on the same concept, an embodiment of the present invention further provides a wearable motion recognition system, including the first wearable device and the second wearable device as described above; wherein: the first wearable device and the second wearable device are used in cooperation, and the first wearable device and the second wearable device are worn on different side limbs of the user;

[0031] The second wearable device includes a second power module, an inverter circuit, and a contact sending electrode;

[0032] The inverter circuit is electrically connected to the second power module and the contact sending electrode, and is configured to convert the direct current output by the second power module into an alternating current with a preset phase and a preset amplitude and output it to the contact sending electrode;

[0033] The contact sending electrode is in direct contact with the user's skin, and is configured to apply the alternating current output by the inverter circuit to the user's human tissue.

[0034] The beneficial effects of the present invention are as follows:

[0035] The structures of the first wearable device and the wearable motion recognition system provided by the embodiments of the present invention are relatively simple, and the cost of the wearable motion recognition system is relatively low, which is beneficial to the popularization of the motion recognition function of smart wearable devices. Description of the Drawings

[0036] Figure 1 It is a schematic structural diagram of the wearable motion recognition system provided by the embodiment of the present invention;

[0037] Figure 2 It is a schematic diagram of the action of a user's finger clicking on a specified position of a limb;

[0038] Figure 3 It is a schematic structural diagram of the second wearable device provided by the embodiment of the present invention;

[0039] Figure 4 It is a partial schematic structural diagram of the second wearable device provided by the embodiment of the present invention;

[0040] Figure 5 It is one of the schematic structural diagrams of the first wearable device provided by the embodiment of the present invention;

[0041] Figure 6 It is one of the partial schematic structural diagrams of the first wearable device provided by the embodiment of the present invention;

[0042] Figure 7 It is the second partial structural schematic diagram of the first wearable device provided by the embodiment of the present utility model;

[0043] Figure 8 It is the third partial structural schematic diagram of the first wearable device provided by the embodiment of the present utility model;

[0044] Figure 9 It is the fourth partial structural schematic diagram of the first wearable device provided by the embodiment of the present utility model;

[0045] Figure 10 It is the fifth partial structural schematic diagram of the first wearable device provided by the embodiment of the present utility model;

[0046] Figure 11 It is the sixth partial structural schematic diagram of the first wearable device provided by the embodiment of the present utility model;

[0047] Figure 12 It is the second structural schematic diagram of the first wearable device provided by the embodiment of the present utility model. Detailed implementation manners

[0048] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described below with reference to the drawings and embodiments. However, the exemplary embodiments can be implemented in various forms and should not be construed as limited to the embodiments described herein; on the contrary, these embodiments are provided to make the present utility model more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings represent the same or similar structures, so the repeated description thereof will be omitted. The words expressing positions and directions described in the present utility model are illustrative with reference to the drawings, but can be changed according to needs, and all changes are included in the protection scope of the present utility model. The drawings of the present utility model are only used to illustrate the relative positional relationship and do not represent the actual proportion.

[0049] It should be noted that specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below. The subsequent description of the specification is the preferred embodiment for implementing the present application, but the description is for the purpose of explaining the general principles of the present application and is not intended to limit the scope of the present application. The protection scope of the present application shall be subject to that defined by the appended claims. The described embodiments are only a part of the embodiments of the present utility model, not all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model. Among them, in the description of the embodiments of the present application, unless otherwise specified, " / " means "or". For example, A / B may mean A or B; "and / or" in the text is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist simultaneously, and B exists alone. In addition, in the description of the embodiments of the present application, "a plurality of" means two or more than two. The terms "first" and "second" are only used for descriptive purposes and cannot be understood as implying or suggesting relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more than two.

[0050] The following specifically describes the first wearable device and the wearable motion recognition system provided by the embodiments of the present utility model in conjunction with the accompanying drawings.

[0051] In a first aspect, the present application provides a wearable motion recognition system (S1), as Figure 1 and Figure 2 shown, including: a first wearable device (100) and a second wearable device (200). Among them, the first wearable device (100) is used in cooperation with the second wearable device (200). When the user performs motion recognition, the first wearable device (100) and the second wearable device (200) are worn on different side limbs of the user. The wearable devices (including the first wearable device (100) and the second wearable device (200)) can be smart watches, smart bracelets, smart rings, etc. For example, as Figure 2As shown, the first wearable device (100) is a smart watch, and the second wearable device (200) is a smart ring. The user wears the smart watch on the left wrist and wears the smart ring on the right finger (such as the middle finger of the right hand) of the user. Of course, the wearable motion recognition system can also be implemented in other ways. For example, both the first wearable device (100) and the second wearable device (200) are smart watches. In the following text and the accompanying drawings, the first wearable device (100) being a smart watch and the second wearable device (200) being a smart ring will be mainly used as an example for illustration.

[0052] Specifically, as Figure 3 shown, the second wearable device (200) includes: a second power module (210), an inverter circuit (220), and a contact transmitting electrode (230). Among them:

[0053] The second power module (210) is electrically connected to the inverter circuit (220) and is used to provide a direct current to the inverter circuit (220).

[0054] The inverter circuit (220) is electrically connected to the second power module (210) and the contact transmitting electrode (230), and is used to convert the direct current output by the second power module (210) into an alternating current with a preset phase and a preset amplitude and output it to the contact transmitting electrode (230).

[0055] As Figure 4 shown, the contact transmitting electrode (230) is in direct contact with the user's skin and is used to apply the alternating current with the preset phase and the preset amplitude output by the inverter circuit (220) to the user's body tissue.

[0056] Further optionally, the second power module (210) may include a magnet and a charging circuit. The magnet is used to magnetically connect with a charger used in conjunction with the second wearable device (200). The charging circuit of the second wearable device (200) can be a wired charging circuit and / or a wireless charging circuit. If the charging circuit of the first wearable device (200) is a wired charging circuit, then through the magnetic connection of the magnet with the charger, the wired charging circuit of the first wearable device (200) and the charging circuit of the charger are electrically connected in a mechanical contact manner; if the charging circuit of the first wearable device (200) is a wireless charging circuit, then through the magnetic connection of the magnet with the charger, an electromagnetic induction phenomenon occurs between the wireless charging circuit of the first wearable device (200) and the charging circuit of the charger to achieve wireless charging.

[0057] Further optionally, as Figure 4 shown, the second wearable device (200) may further include a structure such as a working status indicator light (240). The working status indicator light (240) is connected to the second power module (210) and is used to light up when the second wearable device (200) is working to indicate the corresponding working status.

[0058] As Figure 5 shown, the first wearable device (100) includes: a first power module (110), a contact detection electrode (120), an analog-to-digital conversion circuit (130), and a processor (140). Among them:

[0059] The first power module (110) is electrically connected to the analog-to-digital conversion circuit (130) and the processor (140), and is used to provide electrical energy for the analog-to-digital conversion circuit (130) and the processor (140).

[0060] The contact detection electrode (120) is electrically connected to the analog-to-digital conversion circuit (130) and is in direct contact with the user's skin, and is used to collect a response voltage signal. When the second wearable device (200) and the first wearable device (100) are worn on different side limbs of the user, due to the certain impedance of the human tissue itself, after the alternating current with the preset phase and the preset amplitude applied by the contact transmission electrode (230) of the second wearable device (200) to the user's human tissue is conducted through the human tissue to the wearing position of the first wearable device (100), the phase and amplitude of the alternating current will change. Then, the contact detection electrode (120) can collect the alternating current applied by the second wearable device (200) to the user's human tissue and conducted by the user's human tissue, and the response voltage signal is the voltage signal of the alternating current conducted to the contact detection electrode (120).

[0061] The analog-to-digital conversion circuit (130) is also electrically connected to the processor (140), and is used to convert the response voltage signal collected by the contact detection electrode (130) into a digital signal and send it to the processor (140).

[0062] The processor (140) is used to identify the user's actions according to the digital signal.

[0063] In a specific implementation process, the processor (140) can compare and match the digital signal representing the response voltage with multiple standard feature values representing different user actions, and determine the action corresponding to the standard feature value closest to the digital signal as the user's current action. The basis for comparison and matching can be the amplitude of the response voltage converted into a digital signal form, the response time of the response voltage converted into a digital signal form, etc. Generally, the different physical quantities of the response voltage corresponding to different user actions will not be exactly the same, so comprehensive comparison can be performed from multiple different physical quantities of the response voltage to avoid misjudgment. Among them, the standard feature value can be set by the user through pre-entry, that is, the user can configure the first wearable device (100) to perform the entry of specified actions, and then the user makes the corresponding specified actions (including but not limited to clapping hands, holding hands, folding arms, finger clicking on a specified position of the limb (such asFigure 2 as shown in etc.), while the second wearable device (200) applies the alternating current with the preset phase and the preset amplitude output by the inverter circuit (220) to the human tissue of the user through the contact transmission electrode (230) through the hardware structure described above. The first wearable device (100) collects the response voltage signal of the alternating current conducted through the human tissue of the user through the contact detection electrode (120) through the hardware structure described above. The analog-to-digital conversion circuit (130) converts the response voltage signal into a corresponding digital signal and sends it to the processor (140). The processor (140) generates the standard eigenvalue corresponding to the specified action according to the digital signal. Among them, the processor (140) can directly determine the standard eigenvalue corresponding to the specified action according to the digital signal corresponding to the first wearable device (100) entering the specified action once, or can determine the standard eigenvalue corresponding to the specified action according to multiple digital signals corresponding to the first wearable device (100) entering the specified action multiple times. For the process that the processor (140) directly determines the standard eigenvalue corresponding to the specified action according to the digital signal corresponding to entering the specified action once, the processor (140) can directly use the digital signal as the standard eigenvalue corresponding to the specified action, or can process the digital signal (including but not limited to digital filtering, numerical approximation, etc.) and then use it as the standard eigenvalue corresponding to the specified action. For the process that the processor (140) determines the standard eigenvalue corresponding to the specified action according to multiple digital signals corresponding to the first wearable device (100) entering the specified action multiple times, the processor (140) can process multiple digital signals (including but not limited to digital filtering, numerical approximation, removing extreme values, averaging, etc.) and then use it as the standard eigenvalue corresponding to the specified action. For example, for the action where the upper limbs of the user do not touch each other, the processor (140) can determine the standard eigenvalue corresponding to the action where the upper limbs do not touch each other according to the digital signals corresponding to the response voltages collected by the first wearable device (100) continuously for one week.

[0064] The structures of the two devices included in the wearable action recognition system provided by the embodiments of the present invention - the first wearable device (100) and the second wearable device (200) are relatively simple, and the cost of the wearable action recognition system is relatively low, which is beneficial to the popularization of the action recognition function of intelligent wearable devices.

[0065] In the specific implementation process, the contact detection electrode (120) of the first wearable device (100) can be set to one or more. The more the number of contact detection electrodes (120), the better the recognition effect of the first wearable device (100) on the actions performed by the user.

[0066] Further optionally, the analog-to-digital conversion circuit (130) is a touch chip. For example, the analog-to-digital conversion circuit (130) can be an XPT2046 type chip, or can be an ADS7843 type chip, or can be an ADS7846 type chip. Correspondingly, the first wearable device (100) can include a plurality (e.g., 4) of contact detection electrodes (120). Then, for the plurality of contact detection electrodes (120) of the first wearable device (100), each contact detection electrode (120) is electrically connected to a uniquely corresponding analog input pin on the touch chip.

[0067] As an alternative implementation, as Figure 6 shown, the analog-to-digital conversion circuit (130) is an XPT2046 type chip. Specifically, the VCC pin, VBAT pin, and IOVDD pin of the XPT2046 type chip are respectively electrically connected to the 2.7V DC voltage output terminal of the first power supply module (110), and the GND pin of the XPT2046 type chip is electrically connected to the ground terminal of the first power supply module (110) ( Figure 6 The electrical connection relationship with the ground terminal of the first power supply module (110) is directly shown by grounding, and will not be specifically described later), and the VCC pin and IOVDD pin of the XPT2046 type chip are also respectively electrically connected to the ground terminal of the first power supply module (110) through at least one voltage stabilizing and filtering capacitor ( Figure 6 It is shown in that the VCC pin of the XPT2046 type chip is electrically connected to the ground terminal of the first power supply module (110) through a parallel combination of a 1μF voltage stabilizing and filtering capacitor and a 0.1μF voltage stabilizing and filtering capacitor, and the IOVDD pin is electrically connected to the ground terminal of the first power supply module (110) through a 0.1μF voltage stabilizing and filtering capacitor). The VREF pin of the XPT2046 type chip is electrically connected to the target DC voltage output terminal of the first power supply module (110). The target DC voltage output terminal is related to the voltage value of the alternating current applied by the second wearable device (200) to the user's human tissue. For example, if the voltage value of the alternating current applied by the second wearable device (200) to the user's human tissue is 2V to 3V, then the VREF pin of the XPT2046 type chip can be electrically connected to the 2.7V DC voltage output terminal of the first power supply module (110). The VREF pin of the XPT2046 type chip is also electrically connected to the ground terminal of the first power supply module (110) through at least one voltage stabilizing and filtering capacitor ( Figure 6It is shown that the VREF pin of the XPT2046 chip is electrically connected to the ground terminal of the first power supply module (110) through a 4.7 μF voltage stabilizing and filtering capacitor. The DCLK pin of the XPT2046 chip is electrically connected to the serial clock signal pin of the processor (140), the CS pin of the XPT2046 chip is electrically connected to the chip select signal pin of the processor (140), the DIN pin of the XPT2046 chip is electrically connected to the serial signal input pin of the processor (140), the BUSY pin of the XPT2046 chip is electrically connected to the conversion status signal pin of the processor (140), the DOUT pin of the XPT2046 chip is electrically connected to the serial signal output pin of the processor (140), and the PENIRQ pin of the XPT2046 chip is electrically connected to the interrupt signal pin of the processor (140). Correspondingly, the first wearable device (100) may include 4 contact detection electrodes (120), and the 4 contact detection electrodes (120) are respectively electrically connected to the XP pin, YP pin, XN pin, and YN pin of the XPT2046 chip. And for any contact detection electrode (120), the contact detection electrode (120) is also electrically connected to the ground terminal of the first power supply module (110) through at least one filtering and voltage stabilizing capacitor.

[0068] The first wearable device (100) further includes a housing (150) and a wearing fastening band (160). If the first wearable device (100) is a device such as a smart watch or a smart bracelet, then the wearing fastening band (160) is a watch band, and the fastening buckle (162) mentioned below is the watch buckle of the watch band.

[0069] Furthermore, as an optional implementation manner, as Figure 7 shown, the housing (150) includes a contact portion (151) that is in direct contact with the user's body tissue during the use of the first wearable device (100). Then, at least part of the contact detection electrodes of the first wearable device (100) (hereinafter referred to as the first contact detection electrodes (121)) are disposed on the contact portion (151). For example, as Figure 7 shown, the first wearable device (100) includes 4 contact detection electrodes (121), and the 4 contact detection electrodes (121) are respectively disposed on the four sides of the contact portion (151).

[0070] As another optional implementation manner, as Figures 8 - 11As shown, the wearing fastening belt (160) includes a wearing fastening belt body (161), a fastening buckle (162), leads (163) embedded in the wearing fastening belt body (161) and corresponding one by one to the second contact detection electrodes (122) (the second contact detection electrodes (122) are at least part of the contact detection electrodes (120) of the first wearable device (100)), and second connection contacts (164) arranged on the wearing fastening belt body (161) and corresponding one by one to the second contact detection electrodes (122). The housing (150) includes a wearing fastening belt connection part (152) and first connection contacts (153) corresponding one by one to the second contact detection electrodes (122). The wearing fastening belt connection part (152) is mechanically connected to the wearing fastening belt body (161), and the first connection contacts (153) corresponding to the same second contact detection electrode (122) are electrically connected to the second connection contacts (164). Then, the second contact detection electrodes (122) are arranged on the fastening buckle (162). For any second contact detection electrode (122), the second contact detection electrode (122) is electrically connected to the second connection contact (164) corresponding to the contact detection electrode (122) through the corresponding lead (163). In a specific implementation process, the wearing fastening belt body (161) can be made of materials such as rubber, silica gel, plastic, cloth, leather, metal, etc. (the wearing fastening belt body (161) made of metal is insulated from the second contact detection electrodes (122), the leads (163), and the second connection contacts (164) by means such as coating with insulating paint).

[0071] Furthermore, the mechanical connection between the wearing fastening belt (160) of the first wearable device (100) and the housing (150) can be achieved in the following ways including but not limited to:

[0072] (1) As Figure 9 shown, the wearing fastening belt (160) further includes a limit buckle (165). The wearing fastening belt body (161) includes a first connection buckle (161B) having a first positioning hole (161A), the wearing fastening belt connection part (152) includes a second connection buckle (152B) having a second positioning hole (152A), the first connection buckle (161B) and the second connection buckle (152B) are inserted into each other, and the limit buckle (165) locks the first connection buckle (161B) and the second connection buckle (152B) by passing through the first positioning hole (161A) and the second positioning hole (152A) at the same time, so as to achieve the mechanical connection between the wearing fastening belt connection part (152) and the wearing fastening belt body (161).

[0073] (2) As Figure 10As shown, the wearing fastening band body (161) includes a housing connection part (161C) that matches the shape of the wearing fastening band connection part (152), and the housing connection part (161C) has elasticity. The wearing fastening band body (161) realizes the mechanical connection between the wearing fastening band connection part (152) and the wearing fastening band body (161) by elastically embedding the wearing fastening band connection part (152) through the housing connection part (161C).

[0074] (3) As Figure 11 As shown, the wearing fastening band body (161) includes a third connection buckle (161E) having a recessed part (161D). The wearing fastening band connection part (152) includes a connection groove (152C), a hook-shaped limiting member (152D), and an elastic member (152E). One end of the hook-shaped limiting member (152D) in the target direction is a hook-shaped structure, and the hook-shaped structure is engaged with the recessed part (161D) to realize the mechanical connection between the wearing fastening band body (161) and the wearing fastening band connection part (152). The pressing end of the hook-shaped limiting member (152D) opposite to the hook-shaped structure in the target direction penetrates the first end face (M1) of the connection groove (152C), and the elastic member (152E) is arranged between the second end face (M2) (the second end face (M2) is opposite to the first end face (M1)) of the connection groove (152C) and the hook-shaped structure, and is used to fasten the engagement connection between the hook-shaped structure and the recessed part (161D) when the user does not press the pressing end. In a specific implementation process, the elastic member (152E) can be components such as a spring or a rubber pad.

[0075] In a specific implementation process, the above two setting implementation manners of the contact detection electrodes (120) can be implemented separately. For example, all the contact detection electrodes (120) of the first wearable device (100) are the first contact detection electrodes (121), or all the contact detection electrodes (120) of the first wearable device (100) are the second contact detection electrodes (122); the above two implementation manners can also be combined. For example, the contact detection electrodes (120) of the first wearable device are divided into two parts, one part of the contact detection electrodes (120) is the first contact detection electrode (121), and the other part of the contact detection electrodes (120) is the second contact detection electrode (122). The embodiments of the present invention do not make too many limitations here.

[0076] In this way, by arranging the contact detection electrodes (120) at different positions of the first wearable device (100), the response voltage signal can be better collected, which is beneficial to the processor (140) to recognize the user's actions.

[0077] Further optionally, the processor (140) can be selected according to the performance requirements of the functions realized by the first wearable device (100).

[0078] Further optionally, the first power module (110) includes: a magnet and a charging circuit. The magnet is used for magnetic connection with a charger for use with the first wearable device (100). The charging circuit of the first wearable device (100) can be a wired charging circuit and / or a wireless charging circuit. If the charging circuit of the first wearable device (100) is a wired charging circuit, then through the magnetic connection between the magnet and the charger, the wired charging circuit of the first wearable device (100) forms an electrical connection with the charging circuit of the charger in a mechanical contact manner; if the charging circuit of the first wearable device (100) is a wireless charging circuit, then through the magnetic connection between the magnet and the charger, an electromagnetic induction phenomenon occurs between the wireless charging circuit of the first wearable device (100) and the charging circuit of the charger to achieve wireless charging.

[0079] Even further optionally, as Figure 5 shown, the first wearable device (100) further includes: a heart rate and blood oxygen detection module (171), electrically connected to the first power module (110) and the processor (140) respectively, for detecting the user's heart rate and / or blood oxygen saturation. In a specific implementation process, the heart rate and blood oxygen detection module (171) can include a light-emitting device and a photoelectric sensor. The light-emitting device can be a red light-emitting diode (LED) or a green LED. The light-emitting device of the heart rate and blood oxygen detection module (171) emits light to irradiate the user's skin, and the photoelectric sensor collects the light emitted by the light-emitting device and reflected by the user's skin and converts it into an electrical signal to be provided to the processor (140). The processor (140) analyzes the electrical signal provided by the heart rate and blood oxygen detection module (171) to obtain the user's heart rate and / or blood oxygen saturation.

[0080] Even further optionally, as Figure 5 shown, the first wearable device (100) further includes: a temperature detection module (172), electrically connected to the first power module (110) and the processor (140) respectively, and in direct contact with the user's skin, for detecting the temperature of the user's skin. The temperature detection module (172) can convert the temperature of the user's skin into an electrical signal and send it to the processor (140). In a specific implementation process, the temperature detection module (172) can be a DS18B20 type temperature sensor.

[0081] Even further optionally, as Figure 5As shown, the first wearable device (100) further includes: a communication module (181). The communication module (181) is electrically connected to the first power module (110) and the processor (140) respectively, and is used for communicating with other devices. The communication module (181) may include at least one of the following: a cellular mobile network communication module, a Bluetooth communication module, a Wireless Local Area Network (WLAN) communication module, a Narrow Band Internet of Things (NB-IoT) communication module, a Zigbee communication module, a Long Range Radio (LoRa) communication module, an infrared communication module, and a satellite communication module.

[0082] Further optionally, as Figure 5 As shown, the first wearable device (100) further includes: a satellite positioning module (182). The satellite positioning module (182) is electrically connected to the first power module (110) and the processor (140) respectively, and is used for determining the geographical location where the first wearable device is located. In a specific implementation process, the satellite positioning module (182) may use satellite positioning technologies such as the Global Positioning System (GPS), Beidou, Galileo, and Global Navigation Satellite System (Glonass) for geographical location positioning.

[0083] Further optionally, as Figure 5 As shown, the first wearable device (100) further includes: a human-computer interaction module (190). The human-computer interaction module (190) is electrically connected to the first power module (110) and the processor (140) respectively. The human-computer interaction module (190) may include at least one of the following: a display screen, a vibration motor, a speaker, and a microphone. In a specific implementation process, the display screen may be a Liquid Crystal Display (LCD) or an Organic Light-Emitting Diode (OLED) screen, and no further limitation is made here.

[0084] Then correspondingly, after the processor (140) recognizes that the user makes a specified action, it can trigger an instruction corresponding to the specified action. For example, when the processor (140) recognizes that the user makes a clapping action, it triggers a music playing instruction to control the speaker to play music.

[0085] In a second aspect, based on the same concept, the present invention also provides a wearable action recognition system (S2), as Figure 1 andFigure 2 As shown, it includes: a first wearable device (100) and a second wearable device (200). Among them, the first wearable device (100) is used in cooperation with the second wearable device (200). When the user performs action recognition, the first wearable device (100) and the second wearable device (200) are worn on different side limbs of the user. The wearable devices (including the first wearable device (100) and the second wearable device (200)) can be smart watches, smart bracelets, smart rings, etc. For example, as Figure 2 shown, the first wearable device (100) is a smart watch and the second wearable device (200) is a smart ring. The smart watch is worn on the user's left wrist and the smart ring is worn on the user's right finger (such as the middle finger of the right hand). Of course, the wearable action recognition system can also be implemented in other ways. For example, both the first wearable device (100) and the second wearable device (200) are smart watches. In the following text and figures, the first wearable device (100) being a smart watch and the second wearable device (200) being a smart ring will be mainly used as an example for illustration.

[0086] The hardware structure and working principle of the second wearable device (200) in the wearable action recognition system (S2) provided in the second aspect are exactly the same as those of the second wearable device (200) in the wearable action recognition system (S1) provided in the first aspect. Therefore, the second wearable device (200) in the wearable action recognition system (S2) can be implemented with reference to the corresponding content of the wearable action recognition system (S1), and will not be elaborated here.

[0087] As Figure 12 shown, compared with the first wearable device (100) of the wearable action recognition system (S1), the first wearable device (100) of the wearable action recognition system (S2) is different in that the analog-to-digital conversion circuit is cancelled, and the contact detection electrode (120) is directly electrically connected to the processor (140). Correspondingly, the contact detection electrode (120) of the first wearable device (100) of the wearable action recognition system (S2) is electrically connected to the processor (140) and is in direct contact with the user's skin, and is used to collect the response voltage signal and send it to the processor (140). The processor (140) has an analog-to-digital conversion function, and can convert the response voltage signal collected by the contact detection electrode (120) into a digital signal and recognize the user's action according to the digital signal. The specific principle of the processor (140) recognizing the user's action according to the digital signal is basically the same as the content described in the first aspect, and can be implemented with reference to the previous content, and will not be elaborated here.

[0088] Compared with the first wearable device (100) of the wearable action recognition system (S2), except for the above-mentioned changes in the hardware structure, the remaining hardware structure of the first wearable device (100) of the wearable action recognition system (S2) is exactly the same as that of the first wearable device (100) of the wearable action recognition system (S1) (including but not limited to Figures 7 - 11 the shown structure, heart rate and blood oxygen detection module (171), temperature detection module (172), communication module (181), satellite positioning module (182), human-computer interaction module (190)). Therefore, the implementation of the remaining hardware structure can refer to the corresponding content in the first aspect and will not be elaborated here.

[0089] In the third aspect, based on the same concept, the embodiment of the present invention further provides a second wearable device. The specific hardware structure and working principle of the second wearable device are exactly the same as those of the second wearable device (200) involved in the first aspect and the second aspect. Therefore, it can be implemented by referring to the content described above and will not be elaborated here.

[0090] In the fourth aspect, based on the same concept, the embodiment of the present invention further provides a first wearable device. The specific hardware structure and working principle of the first wearable device are exactly the same as those of the first wearable device (100) involved in the first aspect. Therefore, it can be implemented by referring to the corresponding content in the first aspect and will not be elaborated here.

[0091] In the fifth aspect, based on the same concept, the embodiment of the present invention further provides a first wearable device. The specific hardware structure and working principle of the first wearable device are exactly the same as those of the first wearable device (100) involved in the second aspect. Therefore, it can be implemented by referring to the corresponding content in the second aspect and will not be elaborated here.

[0092] The structure of the first wearable device and the wearable action recognition system provided by the embodiment of the present invention is relatively simple, and the cost of the wearable action recognition system is relatively low, which is beneficial to the promotion of the action recognition function of intelligent wearable devices.

[0093] Obviously, those skilled in the art can make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these changes and modifications.

Claims

1. A first wearable device, characterized in that: The first wearable device is used in conjunction with the second wearable device, the first wearable device and the second wearable device are worn on different sides of a user's limbs, and the second wearable device is used to apply an alternating current to the user's human tissue; The first wearable device comprises: A first power supply module, electrically connected to the analog-to-digital conversion circuit and the processor, and configured to provide power to the analog-to-digital conversion circuit and the processor; a contact detection electrode, electrically connected to the analog-to-digital conversion circuit and in direct contact with the user's skin, for collecting a response voltage signal; the response voltage signal is an AC voltage signal generated by the user's human tissue under the AC current applied by the second wearable device; The analog-to-digital conversion circuit is also electrically connected to the processor, and is used to convert the response voltage signal collected by the contact detection electrode into a digital signal and send it to the processor; The processor is used to identify the user action according to the digital signal; The heart rate and blood oxygen detection module is electrically connected to the first power module and the processor respectively, and is used to detect the user's heart rate and / or blood oxygen saturation.

2. The first wearable device according to claim 1, characterized in that: The analog-to-digital conversion circuit is a touch chip; The first wearable device includes four contact detection electrodes; The four contact detection electrodes are electrically connected to the unique analog input pins on the touch chip.

3. The first wearable device according to claim 1 or 2, characterized in that: The first wearable device further includes a housing, wherein the housing includes a contact portion that is in direct contact with a user's body tissue during use of the first wearable device; The first contact detection electrode is disposed on the contact portion, wherein the first contact detection electrode is at least a portion of the contact detection electrode of the first wearable device.

4. The first wearable device according to claim 1 or 2, characterized in that: The first wearable device also includes a housing and a wearing fastening belt; The wearing fastening belt comprises a wearing fastening belt body, a fastening buckle, a second connection contact point arranged on the wearing fastening belt body and corresponding to the second contact detection electrode one by one, and a lead wire embedded in the wearing fastening belt body and corresponding to the second contact detection electrode one by one; wherein the second contact detection electrode is at least part of the contact detection electrode of the first wearable device; The housing comprises a wearing fastening belt connection portion and first connection contacts corresponding to the second contact detection electrodes one by one; the wearing fastening belt connection portion is mechanically connected to the wearing fastening belt body; the first connection contacts corresponding to the same second contact detection electrode are electrically connected to the second connection contacts; The second contact detection electrode is arranged on the fastening buckle; for any second contact detection electrode, the second contact detection electrode is electrically connected to the second connection contact corresponding to the second contact detection electrode through the corresponding lead wire.

5. The first wearable device according to claim 4, characterized in that: The wearing fastening belt further includes a limiting buckle, the wearing fastening belt body includes a first connecting buckle with a first positioning hole, the wearing fastening belt connecting portion includes a second connecting buckle with a second positioning hole, the first connecting buckle and the second connecting buckle are plugged into each other, and the limiting buckle simultaneously passes through the first positioning hole and the second positioning hole to lock the first connecting buckle and the second connecting buckle, so as to achieve mechanical connection between the wearing fastening belt connecting portion and the wearing fastening belt body; Alternatively, the wearing fastening belt body includes a shell connecting portion that matches the shape of the wearing fastening belt connecting portion, and the shell connecting portion is elastic, and the wearing fastening belt body is inlaid with the wearing fastening belt connecting portion through the elasticity of the shell connecting portion, so that the wearing fastening belt body and the wearing fastening belt connecting portion are mechanically connected; Alternatively, the wearing fastening belt body includes a third connecting buckle with a recessed portion; the wearing fastening belt connecting portion includes a connecting groove, a hook-shaped limiting piece, and an elastic piece, wherein one end of the hook-shaped limiting piece in the target direction is a hook-shaped structure, and the hook-shaped structure is snap-connected with the recessed portion to achieve mechanical connection between the wearing fastening belt body and the wearing fastening belt connecting portion; the pressing end of the hook-shaped limiting piece opposite to the hook-shaped structure in the target direction passes through the first end face of the connecting groove, and the elastic piece is arranged between the second end face of the connecting groove and the hook-shaped structure, and is used to tighten the snap-connection between the hook-shaped structure and the recessed portion when the user does not press the pressing end; wherein the second end face is opposite to the first end face.

6. The first wearable device according to claim 1, characterized in that: The first wearable device further includes: The temperature detection module is electrically connected to the first power module and the processor respectively, and is in direct contact with the user's skin, and is used to detect the temperature of the user's skin.

7. The first wearable device according to claim 1, characterized in that: The first power module includes a magnet and a charging circuit; The magnet is used for magnetic connection with a charger used in conjunction with the first wearable device.

8. The first wearable device according to claim 1, characterized in that: The first wearable device further includes at least one of the following: A communication module, electrically connected to the first power module and the processor respectively; the communication module includes at least one of the following: a cellular mobile network communication module, a Bluetooth communication module, a wireless local area network WLAN communication module, a narrowband Internet of Things NB-IoT communication module, a Zigbee communication module, a LoRa communication module, an infrared communication module, and a satellite communication module; The satellite positioning module is electrically connected to the first power module and the processor respectively, and is used to determine the geographical location of the first wearable device.

9. The first wearable device according to claim 1, characterized in that: The first wearable device further includes a human-computer interaction module, and the human-computer interaction module is electrically connected to the first power module and the processor respectively; The human-computer interaction module includes at least one of the following: a display screen, a vibration motor, a speaker, and a microphone.

10. A wearable motion recognition system, characterized in that: The device comprises a first wearable device and a second wearable device as described in any one of claims 1 to 9; wherein: the first wearable device is used in conjunction with the second wearable device, and the first wearable device and the second wearable device are worn on different sides of a user's limbs; The second wearable device includes a second power module, an inverter circuit and a contact sending electrode; The inverter circuit is electrically connected to the second power module and the contact transmitting electrode, and is used to convert the direct current output by the second power module into an alternating current with a preset phase and preset amplitude and output it to the contact transmitting electrode; The contact transmitting electrode is in direct contact with the user's skin and is used to apply the alternating current output by the inverter circuit to the user's body tissue.

Images