WO2021190150A1 - Wearing detection circuit, neck massage device and wearing detection method - Google Patents

Abstract

Disclosed are a wearing detection circuit (10), a neck massage device and a wearing detection method. The wearing detection circuit (10) comprises: a first input module (1), wherein a first end of the first input module (1) is used for receiving an electrode driving power supply signal; a second input module (2), wherein a first end of the second input module (2) is used for receiving an electrode driving detection signal; and a comparison module (3), wherein a first input end of the comparison module (3) is connected to a second end of the first input module (1), a second input end of the comparison module (3) is connected to a second end of the second input module (2), and the comparison module (3) is used for determining a wearing state according to a comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting a wearing detection signal.

Description

Wearing detection circuit, neck massage device and wearing detection method

Cross-references to related applications

This application requires Future Wearable Technology Co., Ltd. to submit a Chinese patent application number "202010209256.9" and the name "A kind of wearable" on March 23, 2020. The detection circuit and the neck massage device using it have priority to the Chinese patent application number "202020383807.9".

Technical field

The present disclosure relates to the technical field of massage instruments, and in particular to a wearing detection circuit, a neck massage device and a wearing detection method.

Background technique

The neck massager uses pulsed electric frequency to transmit to the deep skin, simulating a variety of artificial massage techniques to achieve the effect of deeply relaxing the cervical spine.

In the related art, for the easy-to-wear neck massager, the electrode assembly of this type of massager has a small contact area with the skin. On the basis of unchanged structure, due to the difference in the neck of different users, the electrode assembly is in contact with or not yet It is prone to false triggering and tingling when contacted.

Summary of the invention

The present disclosure aims to solve at least one of the technical problems existing in the prior art.

To this end, an object of the present disclosure is to provide a wearing detection circuit, which can improve the accuracy of detecting the wearing state of the neck massage device, avoid false triggering when not wearing, and improve user experience.

The second purpose of the present disclosure is to provide a neck massage device.

The third purpose of the present disclosure is to propose a wearing detection method.

In order to solve the above problems, the wearing detection circuit provided by the embodiment of the first aspect of the present disclosure includes a first input module, a first end of the first input module is used to receive an electrode driving power supply signal; The first terminal of the second input module is used to receive the electrode drive detection signal; the comparison module, the first input terminal of the comparison module is connected to the second terminal of the first input module, and the second input terminal of the comparison module Connected to the second end of the second input module, the comparison module is configured to determine the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and output a wearing detection signal.

According to the wearing detection circuit of the embodiment of the present disclosure, the electrode drive power supply signal is received through the first input module, and the electrode drive detection signal is received by the second input module, and then the comparison module compares the electrode drive power supply signal and the electrode drive detection signal, according to the comparison The result determines whether it is not worn or worn, and outputs the wearing detection signal. By comparing the driving power supply signal with the driving detection signal, that is, by comparing the phase difference between the two, it is determined whether the signal of the comparison module is flipped, that is, whether the wearing state is reversed. The conversion can filter out interference, avoid false triggers, improve the accuracy of wearing state detection, ensure the safety of use, and improve user experience.

In some embodiments, the first input module includes: a first resistance unit, a first end of the first resistance unit is used to receive the electrode driving power supply signal; a second resistance unit, the second resistance unit The first end of the second resistance unit is connected to the second end of the first resistance unit, the second end of the second resistance unit is grounded, and the first end of the second resistance unit is connected to the second end of the first resistance unit. There is a first node therebetween, and the first node is connected to the first input terminal of the comparison module. So as to realize the collection of the electrode driving power supply signal.

In some embodiments, the second input module includes: a third resistance unit, the first end of the third resistance unit is used to receive the electrode drive detection signal; the fourth resistance unit, the fourth resistance unit One end is connected to the second end of the third resistance unit, the second end of the fourth resistance unit is grounded, and the first end of the fourth resistance unit is between the second end of the third resistance unit Having a second node, the second node is connected to the second input end of the comparison module; a first capacitor unit, the first end of the first capacitor unit is connected to the first end of the third resistance unit, The second end of the first capacitor unit is grounded. Thus, the collection of the electrode drive detection signal is realized.

In some embodiments, the first resistance unit and the second resistance unit are used to divide the electrode driving power supply signal to obtain a first acquisition signal, and the first node is used to output the The first collection signal; the third resistance unit and the fourth resistance unit are used to divide the electrode drive detection signal to obtain a second collection signal, and the second node is used to output the first 2. Collecting signals; the comparison module is used to determine that it is not worn when the first collected signal is higher than the second collected signal, and output a non-wearing detection signal, or, when the first collected signal is lower than the first collected signal 2. When collecting the signal, it is determined that it is worn, and the worn detection signal is output.

An embodiment of a second aspect of the present disclosure provides a neck massage device, including a body on which a first electrode, a second electrode, an electrode drive circuit, and a controller are provided, wherein the electrode drive circuit and the The first electrode and the second electrode are respectively connected, and the electrode driving circuit includes a power supply terminal and a wearing detection terminal; in the wearing detection circuit of the above embodiment, the wearing detection circuit is connected to the power supply terminal and the wearing detection circuit. The terminal and the controller are respectively connected to obtain the electrode drive power supply signal and the electrode drive detection signal.

According to the neck massage device of the embodiment of the present disclosure, by adopting the wearing detection circuit provided by the above-mentioned embodiment, the accuracy of wearing state detection can be improved, the false trigger phenomenon that occurs when the user is not wearing it can be avoided, and the user experience can be improved.

In some embodiments, the neck massage device further includes: a level conversion unit, which is connected to the controller and the electrode drive circuit, respectively, and is used to switch between the controller and the electrode drive circuit. Level signal.

In some embodiments, the electrode driving circuit includes a first switching tube module, a second switching tube module, a third switching tube module, and a fourth switching tube module, wherein the first end of the first switching tube module is connected to The first end of the second switch tube module is connected, the power supply terminal is provided between the first end of the first switch tube module and the first end of the second switch tube module, and the power supply terminal is connected to the power supply The power supply and the wearing detection circuit are connected; the second end of the first switch tube module is connected to the first end of the third switch tube module, and the second end of the first switch tube module is connected to the third There is a third node between the first end of the switch tube module, and the third node is connected to the first electrode; the second end of the second switch tube module and the first end of the fourth switch tube module Connection, there is a fourth node between the second end of the second switch tube module and the fourth switch tube module, and the fourth node is connected to the second electrode; the third node of the third switch tube module The two ends are connected to the second end of the fourth switch tube module, and the wearing detection end is provided between the second end of the third switch tube module and the second end of the fourth switch tube module; The control terminal of the first switching tube module and the control terminal of the fourth switching tube module are connected to the first output terminal of the level conversion unit, and the control terminal of the second switching tube module is connected to the third switching tube. The control terminal of the module is connected to the second output terminal of the level conversion unit. Therefore, it is possible to provide collection terminals for the electrode drive power supply signal and the electrode drive detection signal to realize data collection.

In some embodiments, the first switching tube module includes a first switching tube, a fifth resistance unit, and a sixth resistance unit; the second switching tube module includes a second switching tube, a seventh resistance unit, and an eighth resistance. Unit; wherein, the first end of the first switch tube is connected to the first end of the second switch tube, between the first end of the first switch tube and the first end of the second switch tube The power supply terminal is provided, the control terminal of the first switch tube is connected to the first output terminal of the level conversion unit through the sixth resistance unit, and one end of the fifth resistance unit is connected to the first output terminal. Between the control end of the switch tube and one end of the sixth resistance unit; the control end of the second switch tube is connected to the second output end of the level conversion unit through the eighth resistance unit, and the first The first end of the seven resistance unit is connected to the first end of the second switch tube, and the second end of the seventh resistance unit is connected to the control end of the second switch tube and one end of the eighth resistance unit between.

In some embodiments, the third switching tube module includes a third switching tube, a ninth resistance unit, and a tenth resistance unit; the fourth switching tube module includes a fourth switching tube, an eleventh resistance unit, and a tenth switching tube. Two resistance units; wherein, the first end of the third switch tube is connected to the second end of the first switch tube, and the first end of the third switch tube is connected to the second end of the first switch tube There is the third node therebetween, the first end of the fourth switch tube is connected to the second end of the second switch tube, and the first end of the fourth switch tube is connected to the second end of the second switch tube. There is the fourth node between the second ends, the second end of the third switch tube is connected to the second end of the fourth switch tube, and the second end of the third switch tube is connected to the fourth switch tube. The second end of the switch tube is provided with the wearing detection end; the control end of the third switch tube is connected to the second output end of the level conversion unit through the tenth resistance unit, and the ninth resistance The first end of the unit is connected to the first end of the third switch tube, and the second end of the ninth resistance unit is connected between the control end of the third switch tube and one end of the tenth resistance unit The control end of the fourth switch tube is connected to the first output end of the level conversion unit through the twelfth resistance unit, and the first end of the eleventh resistance unit is connected to the fourth switch tube The first end of the eleventh resistance unit is connected, and the second end of the eleventh resistance unit is connected between the control end of the fourth switch tube and one end of the twelfth resistance unit.

An embodiment of the third aspect of the present disclosure provides a wearing detection method, including obtaining an electrode driving power supply signal and an electrode driving detection signal; comparing the electrode driving power supply signal and the electrode driving detection signal, and according to the electrode driving power supply signal The wearing state is determined by the comparison result with the electrode driving detection signal, and the wearing detection signal is output.

According to the wearing detection method of the embodiment of the present disclosure, the acquired electrode driving power supply signal is compared with the electrode driving detection signal to determine the wearing state according to the comparison result and output the wearing detection signal. Therefore, the output can be output after determining that the user is wearing The corresponding wearing detection signal is used to drive the electrode, so as to prevent the user from accidentally triggering the electrode when not wearing it, and improve the user experience.

In some embodiments, comparing the electrode driving power supply signal and the electrode driving detection signal, and determining the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting the wearing detection signal includes: The electrode driving power supply signal is divided to obtain a first collection signal, and the electrode driving detection signal is divided to obtain a second collection signal; the first collection signal is higher than the second collection signal , It is determined that the neck massage device is not worn, and the unworn detection signal is output; or, if the first collection signal is lower than the second collection signal, it is determined that the neck massage device is worn, and the worn detection signal is output Signal.

According to the neck massage device of the embodiment of the present disclosure, by using the wearing detection circuit provided in the above embodiment, that is, the electrode driving power supply signal and the electrode driving detection signal are compared through the comparison module, when the electrode driving power supply signal and the electrode driving detection signal exist The difference, or, further, when there is a difference between the electrode drive power supply signal and the electrode drive detection signal, and the difference between the two reaches a certain threshold, the signal of the comparison module is reversed, which causes the change of the wearing state, which can filter out interference and avoid The false trigger phenomenon that occurs when the user is not wearing it improves the accuracy of the wearing state detection and improves the user experience.

The additional aspects and advantages of the present disclosure will be partially given in the following description, and some will become obvious from the following description, or be understood through the practice of the present disclosure.

Description of the drawings

The above and/or additional aspects and advantages of the present disclosure will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

FIG. 1 is a schematic diagram of the structure of a false trigger circuit in the prior art;

Fig. 2 is a schematic structural diagram of a wearing detection circuit according to an embodiment of the present disclosure;

3(a)-(b) are waveform diagrams of the false trigger circuit and the false trigger circuit of the embodiment of the present disclosure, respectively;

Fig. 4 is a structural block diagram of a neck massage device according to an embodiment of the present disclosure;

Fig. 5 is a schematic diagram of a level conversion unit according to an embodiment of the present disclosure;

Fig. 6 is a schematic structural diagram of an electrode driving circuit according to an embodiment of the present disclosure;

Fig. 7 is a flowchart of a wearing detection method according to an embodiment of the present disclosure.

Reference signs:

Wearing detection circuit 10; first input module 1; second input module 2; comparison module 3;

Body 20; first electrode 4; second electrode 5; electrode driving circuit 6; controller 7; level conversion unit 8;

The first switch tube module 11; the second switch tube module 12; the third switch tube module 13; the fourth switch tube module 14.

Detailed ways

The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary, and are only used to explain the present disclosure, and cannot be understood as a limitation to the present disclosure.

In the description of the present disclosure, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientation or positional relationship indicated by "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure.

It should be noted that the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of these features. Further, in the description of the present disclosure, unless otherwise specified, "plurality" means two or more.

Fig. 1 shows a wear detection circuit that is easy to be triggered by mistake in the prior art. Fig. 6 is a schematic structural diagram of an electrode drive circuit. Among them, EMS_OUT1 and EMS_OUT2 are electrode plates, which are used to transmit electric pulses for neck massage, and CA The terminal and the CB terminal are ports for connecting the electrode drive circuit to the controller, and are used to receive signals from the controller. EMS_CHECK1 is the output port of the wearing status signal. When not wearing, the port used to send the wearing status signal in the wearing detection circuit, that is, the EMS_CHECK1 terminal in Figure 1 is high; after wearing, the EMS_CHECK1 terminal is low.

However, technicians have found that because the voltage value of the power supply terminal of the electrode drive circuit, that is, the value of VCC_HV1, will change greatly in a very short time, and the frequency of the transistor's turn-on and turn-off is large, interference is likely to occur in the circuit and cause false detection. Specifically, when the user is not wearing it, for the electrode driving circuit terminal, when the CA terminal is closed and the CB terminal is opened, the charge accumulated in the emitter of the first transistor Q1 will move to The wearing detection terminal of the electrode driving circuit is the VB terminal. The voltage difference between VCC_HV1 and VB terminal is not large (due to the voltage drop, the voltage at VCC_HV1 terminal is slightly greater than the voltage at VB terminal), EMS_OUT1 and EMS_OUT2 are not connected, and then after the capacitor C2 in Figure 1 is fully charged, It will trigger the conduction of the fifth transistor Q5 and send out the EMS CHECK1 signal by mistake, leading to misoperation, but in fact, the user is not wearing it at this time, and it will cause undesired conditions such as tingling.

In response to the above problems, the embodiments of the present disclosure propose a wearing detection circuit, which can improve the accuracy of detecting the wearing state of the neck massage device, avoid false triggering when not wearing, and improve user experience.

The following describes a wearing detection circuit according to an embodiment of the first aspect of the present disclosure with reference to FIG. 2.

FIG. 2 is a schematic structural diagram of the wearing detection circuit of the embodiment of the disclosure. As shown in FIG. 2, the wearing detection circuit 10 of the embodiment of the disclosure includes a first input module 1, a second input module 2, and a comparison module 3.

In the embodiment, the wearing detection circuit 10 is used in a neck massage device, and is electrically connected to an electrode driving circuit, so that the electrode driving circuit can drive the electrodes to work according to the output signal of the wearing detection circuit. As shown in Figure 2, the first terminal of the first input module 1 is connected to the power supply terminal of the electrode drive circuit, namely the VCC_HV1 terminal, for receiving the electrode drive power supply signal; the first terminal of the second input module 2 is connected to the electrode drive circuit The wearing detection terminal is connected to the VB terminal to receive the electrode drive detection signal; the first input terminal of the comparison module 3 is connected with the second terminal of the first input module 1, and the second input terminal of the comparison module 3 is connected with the second input The second end of the module 2 is connected for determining the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting the wearing detection signal. Wherein, the electrode drive power supply signal can be understood as whether there is an electrical signal for powering the electrode, and the electrode drive detection signal can be understood as an electrical signal whether the electrode is connected.

Specifically, during operation, the first input module 1 will receive the electrode drive power supply signal provided by the power supply terminal, and transmit it to the comparison module 3 through the first input terminal, and the second input module 2 will receive the electrode provided by the wearing detection terminal. The drive detection signal is sent to the comparison module 3 through the second input terminal, and then the comparison module 3 compares the electrode drive power supply signal with the electrode drive detection signal, and determines the wearing state according to the comparison result, that is, it is judged whether it is in the unworn state or In the worn state, and then output the corresponding wearing detection signal, that is, the circuit of the embodiment of the present disclosure compares the electrode drive power supply signal with the electrode drive detection signal through the comparison module 3. When there is a difference between the electrode drive power supply signal and the electrode drive detection signal Or, when there is a difference between the electrode drive power supply signal and the electrode drive detection signal, and the magnitude of the difference between the two reaches a certain threshold, the signal of the comparison module 3 is reversed, that is, the wearing state is changed. Therefore, the comparison module 3 determines the wearing state according to the comparison result, so that the signal for driving the electrode will be output only when it is in the worn state, and the signal for driving the electrode will not be output in other cases, thereby preventing false triggering when not wearing Behavior, avoid the stinging phenomenon, and ensure the safety of use.

In the embodiment, for the comparison module 3 to determine the wearing state according to the comparison result of the electrode drive power supply signal and the electrode drive detection signal, the magnitude of the two signals can be compared to determine whether the user is wearing it, specifically, when the electrode drive power supply signal is high When the electrode drive detection signal is determined to be not worn, that is, the electrode is not connected, the unweared detection signal is output, and the electrode is not driven to work, or when the electrode drive power supply signal is lower than the electrode drive detection signal, it is determined to be worn, that is, the electrode is connected, Then output the worn detection signal to drive the electrode to work.

According to the wearing detection circuit 10 of the embodiment of the present disclosure, the electrode driving power supply signal is received through the first input module 1, and the electrode driving detection signal is received by the second input module 2, and the comparison module 3 performs the electrode driving power supply signal and the electrode driving detection signal. Compare to determine whether it is not worn or worn according to the comparison result, and output a worn detection signal. By comparing the electrode drive power supply signal with the electrode drive detection signal, that is, by comparing the magnitude of the difference between the two, the signal of the comparison module 3 is determined Whether to flip or not, that is, whether to switch the wearing state, so as to filter out interference, avoid false triggers, improve the accuracy of wearing state detection, ensure the safety of use, and improve user experience.

In an embodiment, as shown in FIG. 2, the first input module 1 may include a first resistance unit R1 and a second resistance unit R2. Wherein, the first end of the first resistance unit R1 is used to receive the electrode drive power supply signal; the first end of the second resistance unit R2 is connected to the second end of the first resistance unit R1, and the second end of the second resistance unit R2 is grounded Or connect the negative electrode of the battery, there is a first node p between the first end of the second resistance unit R2 and the second end of the first resistance unit R1, and the first node p is connected to the first input end of the comparison module 3 to realize the pairing Collection of electrode drive power supply signal.

In some embodiments, the resistance value range of the first resistance unit R1 is greater than the human body resistance value, and the voltage value range at the first node p is U1<3.3V. Based on this range, the resistance value of the second resistance unit R2 The value can be set according to actual conditions, and there is no limitation on this. The resistance of the second resistance unit R2 determines the voltage at the first node p. The greater the resistance of the second resistance unit R2, the greater the resistance of the first node p The higher the voltage at, therefore, the second resistance unit R2 can function as a voltage divider, further reducing the possibility of component breakdown, and can function as a voltage control to control the voltage at the first node p .

In an embodiment, as shown in FIG. 2, the second input module 2 may include a third resistance unit R3, a fourth resistance unit R4, and a first capacitance unit C1. Wherein, the first end of the third resistance unit R3 is used to receive the electrode drive detection signal; the first end of the fourth resistance unit R4 is connected to the second end of the third resistance unit R3, and the second end of the fourth resistance unit R4 is grounded Or connect the negative electrode of the battery, there is a second node q between the first end of the fourth resistance unit R4 and the second end of the third resistance unit R3, and the second node q is connected to the second input end of the comparison module 3; a first capacitor The first end of the unit C1 is connected to the first end of the third resistance unit R3, and the second end of the first capacitance unit C1 is grounded, so as to realize the collection of the electrode drive detection signal.

In some embodiments, the third resistance unit R3 can be set according to actual conditions, which is not limited, and the voltage value range U2 at the second node q is less than 3.3V. Based on this range, the fourth resistance unit R4 The resistance value can be set according to the actual situation, and there is no limitation on this. The resistance value of the fourth resistance unit R4 determines the voltage at the second node q. The greater the resistance value of the fourth resistance unit R4, the second node The higher the voltage at q, therefore, the fourth resistance unit R4 can function as a voltage divider, further reducing the possibility of component breakdown, and can function as a voltage control to control the voltage at the second node q Voltage. And the first capacitor unit C1 can have a filtering effect, avoid interference, and improve the accuracy of the detection signal.

In an embodiment, the first resistance unit R1 and the second resistance unit R2 are used to divide the electrode driving power supply signal to obtain the first collection signal, and the first node p is used to output the first collection signal; the third resistor The unit R3 and the fourth resistance unit R4 are used to divide the electrode drive detection signal to obtain the second collection signal, and the second node q is used to output the second collection signal. Further, the comparison module 3 is configured to determine that it is not worn when the first acquisition signal is higher than the second acquisition signal, and output a non-wearing detection signal, or, when the first acquisition signal is lower than the second acquisition signal, determine that it is worn and output it. Wear detection signal.

For example, the comparison module 3 may include an integrated amplifier, as shown in FIG. 2, where the voltage at the first node p can be understood as the first acquisition signal, and the voltage at the second node q can be understood as the second acquisition signal. The module 3 compares the voltage levels at the two nodes to determine the wearing state, and outputs a wearing detection signal. Specifically, the same direction input end of the integrated amplifier is respectively connected to one end of the first resistance unit R1 and one end of the second resistance unit R2, and the reverse input end of the integrated amplifier is respectively connected to one end of the third resistance unit R3 and one end of the fourth resistance unit R4 to The pressure drop ratio is controlled to realize a significant difference in pressure difference between the first node p and the second node q. Therefore, the wearing detection circuit of the embodiment of the present disclosure is set so that when it is in the unworn state, that is, the electrode is not connected, at this time Vp>Vq, the EMS CHECK1 outputs a high level, and no pulse signal is output at the electrode; if it is in the worn state, That is, the electrodes are connected, and at this time Vp<Vq, the EMS CHECK1 low-level output signal. Thus, the comparison module 3 compares the first collected signal with the second collected signal, that is, compares the voltage at the first node p and the second node q, and determines whether it is in the wearing state according to the comparison result, so as to avoid not being worn False trigger phenomenon at the time.

It should be noted that FIG. 2 above only shows an example of the circuit structure of the wearing detection circuit 10, and other modified circuit structures based on this circuit structure are also within the protection scope of the embodiments of the present disclosure.

The following is a further example of the wearing detection circuit 10 of the embodiment of the present disclosure according to FIG. 3, as shown in FIG. 3, where (a) in FIG. 3 is a waveform diagram generated by the circuit shown in FIG. (B) in 3 is the waveform diagram generated by the wearing detection circuit of the embodiment of the present disclosure. Through the comparison of the two waveform diagrams, it can be seen that when the circuit shown in FIG. 1 of the prior art is used, there is drag in the low-level part of the waveform. Tail phenomenon, that is, when the signal is not worn, the EMS CHECK1 signal is mistakenly sent out due to signal delay, and a false trigger occurs; when the circuit of the embodiment of the present disclosure is used, the detection signal is a rectangular wave, and it is detected that it is not worn, that is, the low level Output, high-level output when wearing is detected, no signal tailing phenomenon will occur, that is, no false triggering phenomenon will occur. That is, the wearing detection circuit 10 of the embodiment of the present disclosure can achieve the effects of adjusting distortion, preventing signal errors from occurring, and improving the accuracy and stability of signal detection.

Therefore, according to the wearing detection circuit 10 of the embodiment of the present disclosure, the electrode driving power supply signal and the electrode driving detection signal are compared through the comparison module 3 to determine whether the user is wearing it, and when the wearing is determined, the worn detection signal is output, or When it is determined that it is not worn, it outputs a non-wearing detection signal, that is, the electrodes are driven only in the worn state, so that false triggering when not being worn can be avoided, safety in use can be ensured, and user experience can be improved.

An embodiment of the second aspect of the present disclosure provides a neck massage device. As shown in FIG. 4, the neck massage device of the embodiment of the present disclosure includes a body 20 and the wearing detection circuit 10 provided in the above-mentioned embodiment.

In an embodiment, the body 20 is provided with a first electrode 4, a second electrode 5, an electrode driving circuit 6 and a controller 7, wherein the electrode driving circuit 6 is connected to the first electrode 4 and the second electrode 5 respectively, and the electrode The driving circuit 6 includes a power supply terminal and a wearing detection terminal; and the wearing detection circuit 10 is respectively connected to the power supply terminal and the wearing detection terminal to obtain an electrode driving power supply signal and an electrode driving detection signal.

In an embodiment, when the neck massage device of the embodiment of the present disclosure is not worn, the voltage at the power supply terminal is greater than the voltage at the wearing detection terminal, and the wearing detection circuit 10 distinguishes the voltages at the two ends to determine whether the user is wearing it. Specifically, when the first electrode 4 and the second electrode 5 are not connected, that is, they are in an unworn state. At this time, the electrode driving power supply signal detected by the wearing detection circuit 10 is greater than the electrode driving detection signal, that is, the voltage of the power supply terminal is greater than the voltage of the wearing detection terminal. And output the unwearing detection signal to the controller 7, and the controller 7 will control the electrode driving circuit to not work, that is, it will not drive the first electrode 4 and the second electrode 5 to operate; and when the first electrode 4 and the second electrode 5 are connected At this time, it is in the worn state. At this time, the electrode driving power supply signal detected by the wearing detection circuit 10 is less than the electrode driving detection signal, that is, the voltage of the power supply terminal is lower than the wearing detection terminal voltage, and the worn detection signal is output to the controller 7, and the controller 7 Then, the electrode driving circuit is controlled to work, that is, the first electrode 4 and the second electrode 5 are driven to operate, so as to achieve the effect of neck massage.

According to the neck massage device of the embodiment of the present disclosure, by adopting the wearing detection circuit 10 provided by the above-mentioned embodiment, the first electrode 4 and the second electrode 5 can be driven to work after the user is determined to be wearing it, thereby avoiding the occurrence of unwearing The false trigger phenomenon improves the accuracy of wearing state detection and improves user experience.

In the embodiment, as shown in FIG. 4, the neck massage device of the embodiment of the present disclosure further includes a level conversion unit 8, which is connected to the controller 7 and the electrode drive circuit 6 respectively, and is used to switch the controller 7 and the electrode drive circuit. Level signal between 6. Specifically, FIG. 5 is a schematic structural diagram of a level conversion unit according to an embodiment of the present disclosure. As shown in FIG. 5, the first output terminal CA and the second output terminal CB of the level conversion unit 8 are respectively connected to the electrode driving circuit The two pins of 6 are connected, and the EMSA end and the EMSB end of the level conversion unit 8 are connected to the two pins of the controller 7 respectively.

The electrode driving circuit 6 of the neck massage device according to the embodiment of the present disclosure will be further described below with reference to FIG. 6. In one embodiment, the electrode driving circuit 6 includes a first switching tube module 11, a second switching tube module 12, a third switching tube module 13, and a fourth switching tube module 14. Among them, the VCC_HV1 terminal shown in Figure 6 is the power supply terminal; the EMS OUT1 shown in Figure 6 is the connection terminal with the first electrode 4, that is, the third node; the EMS OUT2 shown in Figure 6 is the connection with the second electrode 5 The connecting end is the fourth node; the VB end shown in Figure 6 is the wearing detection end.

Wherein, as shown in FIG. 6, the first end of the first switch tube module 11 is connected to the first end of the second switch tube module 12, and the first end of the first switch tube module 11 is connected to the first end of the second switch tube module 12. There is a power supply terminal between one end, the power supply terminal is connected to the power supply and the wearing detection circuit 10; the second end of the first switch tube module 11 is connected to the first end of the third switch tube module 13, and the first switch tube module 11 There is a third node between the second end and the first end of the third switch tube module 13, and the third node is connected to the first electrode 4; the second end of the second switch tube module 12 and the fourth switch tube module 14 One end is connected, there is a fourth node between the second end of the second switch tube module 12 and the first end of the fourth switch tube module 14, and the fourth node is connected to the second electrode 5; The two ends are connected to the second end of the fourth switch tube module 14, and there is a wearing detection end between the second end of the third switch tube module 13 and the second end of the fourth switch tube module 14; The control terminal and the control terminal of the fourth switch tube module 14 are connected to the first output terminal CA of the level conversion unit 8, and the control terminal of the second switch tube module 12 and the control terminal of the third switch tube module 13 are connected to the level conversion The second output terminal CB of the unit 8. Therefore, the electrode driving power supply signal and the electrode driving detection signal can be provided to the wearing detection circuit 10 through the power supply terminal and the wearing detection terminal according to the connection state and power supply state of the electrodes, so as to realize data collection.

In the embodiment, as shown in FIG. 6, the first switching tube module 11 includes a first switching tube Q1, a fifth resistance unit R5, and a sixth resistance unit R6, and the second switching tube module 12 includes a second switching tube Q2 and a second switching tube. Seven resistance unit R7 and eighth resistance unit R8. Wherein, each resistance unit may include a single resistor, or may be composed of multiple resistors connected in series or in parallel or in series and parallel, for example, a single resistor is taken as an example in FIG. 6.

The first end of the first switching tube Q1 is connected to the first end of the second switching tube Q2, and there is a power supply terminal between the first end of the first switching tube Q1 and the first end of the second switching tube Q2. The control terminal of Q1 is connected to the first output terminal CA of the level conversion unit 8 through the sixth resistance unit R6, and one end of the fifth resistance unit R5 is connected between the control terminal of the first switch tube Q1 and one end of the sixth resistance unit R6. Between; the control end of the second switch tube Q2 is connected to the second output terminal CB of the level conversion unit 8 through the eighth resistance unit R8, and the first end of the seventh resistance unit R7 is connected to the first end of the second switch tube Q2 , The second end of the seventh resistance unit R7 is connected between the control end of the second switch tube Q2 and one end of the eighth resistance unit R8.

In the embodiment, as shown in FIG. 6, the third switching tube module 13 includes a third switching tube Q3, a ninth resistance unit R9, and a tenth resistance unit R10, and the fourth switching tube module 14 includes a fourth switching tube Q4, a Eleventh resistance unit R11 and twelfth resistance unit R12. Wherein, the first end of the third switch tube Q3 is connected to the second end of the first switch tube Q1, and there is a third node between the first end of the third switch tube Q3 and the second end of the first switch tube Q1. The first end of the four switching tube Q4 is connected to the second end of the second switching tube Q2, there is a fourth node between the first terminal of the fourth switching tube Q4 and the second terminal of the second switching tube Q2, and the third switching tube The second end of Q3 is connected to the second end of the fourth switching tube Q4, and there is a wearing detection terminal between the second end of the third switching tube Q3 and the second end of the fourth switching tube Q4; the control of the third switching tube Q3 The terminal is connected to the second output terminal CB of the level conversion unit 8 through the tenth resistor unit R10, the first terminal of the ninth resistor unit R9 is connected to the first terminal of the third switch tube Q3, and the second terminal of the ninth resistor unit R9 The terminal is connected between the control terminal of the third switch tube Q3 and one end of the tenth resistance unit R10; the control terminal of the fourth switch tube Q4 is connected to the first output terminal CA of the level conversion unit 8 through the twelfth resistance unit R12 , The first end of the eleventh resistance unit R11 is connected to the first end of the fourth switch tube Q4, and the second end of the eleventh resistance unit R11 is connected to the control end of the fourth switch tube Q4 and the twelfth resistance unit R12 Between one end.

The above FIG. 6 only shows an example of the circuit structure of the electrode driving circuit 6, and other modified circuit structures based on this circuit structure are also within the protection scope of the embodiments of the present disclosure.

Therefore, according to the neck massage device of the embodiment of the present disclosure, the wearing detection circuit 10 and the electrode driving circuit 6 provided by the above embodiment cooperate with each other. As shown in FIG. 6, when the device is not worn, that is, when the first output terminal CA When the terminal is closed and the second output terminal CB is disconnected, as the second output terminal CB is opened, the charge of the first terminal of the first switching tube Q1, such as the emitter of the transistor Q1 in FIG. 6, will move to the wearing detection terminal. That is, the VB terminal. At this time, because the first electrode 4 and the second electrode 5 are not connected, the wearing detection circuit 10 shown in FIG. 2 will still detect that the electrode driving power supply signal is higher than the electrode driving detection signal, and will not be turned on The circuit sends out the EMS CHECK1 signal by mistake, leading to misoperation, thereby avoiding the false trigger phenomenon when not wearing, improving the accuracy of wearing state detection, ensuring the safety of use, and improving the user experience.

The embodiment of the third aspect of the present disclosure provides a wearing detection method. As shown in FIG. 7, the wearing detection method of the embodiment of the present disclosure includes steps S1-S2.

Step S1, obtaining an electrode drive power supply signal and an electrode drive detection signal.

In the embodiment, the wearing detection circuit provided in the above embodiment is connected to the power supply terminal and the wearing detection terminal of the electrode driving circuit respectively to obtain the electrode driving power supply signal and the electrode driving detection signal.

Step S2, comparing the electrode driving power supply signal and the electrode driving detection signal, and determining the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting the wearing detection signal.

In the embodiment, the comparison module in the wearing detection circuit provided in the above embodiment compares the acquired electrode drive power supply signal and the electrode drive detection signal, and determines the wearing state according to the comparison result of the electrode drive power supply signal and the electrode drive detection signal. , And output the wearing detection signal to the controller, that is, the wearing detection method of the embodiment of the present disclosure compares the driving power supply signal with the driving detection signal through the comparison module, when there is a difference between the electrode driving power supply signal and the electrode driving detection signal, or, When there is a difference between the electrode drive power supply signal and the electrode drive detection signal, and the magnitude of the difference between the two reaches a certain threshold, the signal of the comparison module is reversed, that is, the wearing state is changed. Therefore, the comparison module determines the wearing state according to the comparison result, so that the signal for driving the electrode will be output only when it is in the worn state, and the signal for driving the electrode will not be output in other cases, thereby preventing false triggering behavior when not wearing , To avoid stinging phenomenon, to ensure the safety of use.

Specifically, when the electrode driving power supply signal is higher than the electrode driving detection signal, it is determined that the neck massage device is not worn, and the unwearing detection signal is output; or, when the electrode driving power supply signal is lower than the electrode driving detection signal, it is determined that the device is worn The neck massage device outputs a worn detection signal, and then the controller controls the driving state of the electrode according to the detection signal, so as to avoid false triggering of the electrode when it is not worn.

According to the wearing detection method of the embodiment of the present disclosure, the acquired electrode driving power supply signal is compared with the electrode driving detection signal to determine the wearing state according to the comparison result and output the wearing detection signal. Therefore, after determining whether the user is wearing, By outputting the corresponding wearing detection signal, it can prevent the user from being triggered by mistake when not wearing it, improve the accuracy of detecting the wearing state of the neck massage device, and improve the user experience.

In an embodiment, comparing the electrode driving power supply signal and the electrode driving detection signal, and determining the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting the wearing detection signal may include dividing the electrode driving power supply signal. Voltage to obtain the first acquisition signal, and to divide the electrode drive detection signal to obtain the second acquisition signal, so as to facilitate the control of the voltage of the acquisition signal through the way of voltage division, and avoid potential electricity hazards caused by excessive voltage. The comparison module judges the collected signal, and when the first collected signal is higher than the second collected signal, it is determined that the neck massage device is not worn and the unworn detection signal is output; or, when the first collected signal is lower than the second collected signal, It is determined that the neck massage device has been worn, and the worn detection signal is output. Thereby, the accuracy of detecting the wearing state of the neck massage device is improved, the user is prevented from being triggered by mistake when not wearing it, and the user experience is improved.

In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "exemplary embodiments", "examples", "specific examples", or "some examples" etc. means to incorporate the implementation The specific features, structures, materials or characteristics described by the examples or examples are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the above-mentioned terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

Although the embodiments of the present disclosure have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and modifications can be made to these embodiments without departing from the principle and purpose of the present disclosure. The scope of the present disclosure is defined by the claims and their equivalents.

Claims (11)

1. A wearing detection circuit for a neck massage device, characterized in that it comprises:

   A first input module, the first end of the first input module is used to receive an electrode driving power supply signal;

   A second input module, the first end of the second input module is used to receive electrode drive detection signals;

   A comparison module, the first input terminal of the comparison module is connected with the second terminal of the first input module, the second input terminal of the comparison module is connected with the second terminal of the second input module, the comparison The module is used for determining the wearing state according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and outputting the wearing detection signal.
2. The wearing detection circuit according to claim 1, wherein the first input module comprises:

   A first resistance unit, the first end of the first resistance unit is used to receive the electrode driving power supply signal;

   A second resistance unit, the first end of the second resistance unit is connected to the second end of the first resistance unit, the second end of the second resistance unit is grounded, and the first end of the second resistance unit is grounded. There is a first node between the first resistance unit and the second end of the first resistance unit, and the first node is connected to the first input end of the comparison module.
3. The wearing detection circuit according to claim 1 or 2, wherein the second input module comprises:

   A third resistance unit, the first end of the third resistance unit is used to receive an electrode drive detection signal;

   A fourth resistance unit, the first end of the fourth resistance unit is connected to the second end of the third resistance unit, the second end of the fourth resistance unit is grounded, and the first end of the fourth resistance unit is grounded. There is a second node between the second end of the third resistance unit, and the second node is connected to the second input end of the comparison module;

   In the first capacitor unit, the first end of the first capacitor unit is connected to the first end of the third resistance unit, and the second end of the first capacitor unit is grounded.
4. The wearing detection circuit according to any one of claims 1-3, wherein:

   The first resistance unit and the second resistance unit are used to divide the electrode driving power supply signal to obtain a first collection signal, and the first node is used to output the first collection signal;

   The third resistance unit and the fourth resistance unit are used to divide the electrode drive detection signal to obtain a second collection signal, and the second node is used to output the second collection signal;

   The comparison module is configured to determine that it is not worn when the first collected signal is higher than the second collected signal, and output a non-wearing detection signal, or, when the first collected signal is lower than the second collected signal When it is confirmed that it has been worn, the worn detection signal is output.
5. A neck massage device, characterized in that it comprises:

   The main body is provided with a first electrode, a second electrode, an electrode driving circuit and a controller, wherein the electrode driving circuit is connected to the first electrode and the second electrode respectively, and the electrode driving circuit Including the power supply terminal and the wearing detection terminal;

   The wearing detection circuit according to any one of claims 1 to 4, wherein the wearing detection circuit is respectively connected to the power supply terminal, the wearing detection terminal and the controller to obtain an electrode drive power supply signal and an electrode drive detection signal .
6. The neck massage device according to claim 5, wherein the neck massage device further comprises:

   The level conversion unit is respectively connected with the controller and the electrode drive circuit, and is used for converting the level signal between the controller and the electrode drive circuit.
7. The neck massage device according to claim 5 or 6, wherein the electrode driving circuit comprises a first switch tube module, a second switch tube module, a third switch tube module, and a fourth switch tube module, wherein:

   The first end of the first switch tube module is connected to the first end of the second switch tube module, and the first end of the first switch tube module is between the first end of the second switch tube module Having the power supply terminal, which is connected to the power supply and the wearing detection circuit;

   The second end of the first switch tube module is connected to the first end of the third switch tube module, and the second end of the first switch tube module is between the first end of the third switch tube module Having a third node, and the third node is connected to the first electrode;

   The second end of the second switch tube module is connected to the first end of the fourth switch tube module, and the second end of the second switch tube module is between the first end of the fourth switch tube module Having a fourth node, and the fourth node is connected to the second electrode;

   The second end of the third switch tube module is connected to the second end of the fourth switch tube module, between the second end of the third switch tube module and the second end of the fourth switch tube module Having the wearing detection terminal;

   The control terminal of the first switch tube module and the control terminal of the fourth switch tube module are connected to the first output terminal of the level conversion unit, and the control terminal of the second switch tube module is connected to the third output terminal of the level conversion unit. The control end of the switch tube module is connected to the second output end of the level conversion unit.
8. The neck massage device according to any one of claims 5-7, wherein:

   The first switch tube module includes a first switch tube, a fifth resistance unit, and a sixth resistance unit;

   The second switch tube module includes a second switch tube, a seventh resistance unit, and an eighth resistance unit;

   Wherein, the first end of the first switch tube is connected to the first end of the second switch tube, and the first end of the first switch tube is connected to the first end of the second switch tube. The power supply terminal, the control terminal of the first switch tube is connected to the first output terminal of the level conversion unit through the sixth resistance unit, and one end of the fifth resistance unit is connected to the first switch tube Between the control end of and one end of the sixth resistance unit;

   The control terminal of the second switch tube is connected to the second output terminal of the level conversion unit through the eighth resistance unit, and the first terminal of the seventh resistance unit is connected to the first terminal of the second switch tube. The second end of the seventh resistance unit is connected between the control end of the second switch tube and one end of the eighth resistance unit.
9. The neck massage device according to any one of claims 5-8, wherein:

   The third switch tube module includes a third switch tube, a ninth resistance unit, and a tenth resistance unit;

   The fourth switch tube module includes a fourth switch tube, an eleventh resistance unit, and a twelfth resistance unit;

   Wherein, the first end of the third switch tube is connected to the second end of the first switch tube, and the first end of the third switch tube is connected to the second end of the first switch tube. In the third node, the first end of the fourth switch tube is connected to the second end of the second switch tube, and the first end of the fourth switch tube is between the first end of the fourth switch tube and the second end of the second switch tube. There is the fourth node therebetween, the second end of the third switch tube is connected to the second end of the fourth switch tube, and the second end of the third switch tube is connected to the second end of the fourth switch tube. There is the wearing detection end between the two ends;

   The control terminal of the third switch tube is connected to the second output terminal of the level conversion unit through the tenth resistance unit, and the first terminal of the ninth resistance unit is connected to the first terminal of the third switch tube. Terminal connection, the second terminal of the ninth resistance unit is connected between the control terminal of the third switch tube and one end of the tenth resistance unit;

   The control terminal of the fourth switch tube is connected to the first output terminal of the level conversion unit through the twelfth resistance unit, and the first terminal of the eleventh resistance unit is connected to the first output terminal of the fourth switch tube. The first end is connected, and the second end of the eleventh resistance unit is connected between the control end of the fourth switch tube and one end of the twelfth resistance unit.
10. A wearing detection method for a neck massage device, characterized in that it comprises:

    Obtain the electrode drive power supply signal and the electrode drive detection signal;

    The electrode driving power supply signal and the electrode driving detection signal are compared, and the wearing state is determined according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal, and the wearing detection signal is output.
11. The wearing detection method according to claim 10, wherein the electrode driving power supply signal and the electrode driving detection signal are compared, and the wearing detection signal is determined according to the comparison result of the electrode driving power supply signal and the electrode driving detection signal. Status, output wearing detection signal, including:

    Voltage-dividing the electrode drive power supply signal to obtain a first collection signal, and voltage-dividing the electrode drive detection signal to obtain a second collection signal;

    If the first collection signal is higher than the second collection signal, it is determined that the neck massage device is not worn, and a non-wearing detection signal is output;

    Alternatively, if the first collection signal is lower than the second collection signal, it is determined that the neck massage device has been worn, and a worn detection signal is output.