An electrical stimulation massage device, a control method thereof, and a storage medium

Abstract

The present application relates to the field of electric stimulation massage device, and particularly relates to an electric stimulation massage device, a control method thereof and a storage medium. The control method comprises the following steps: a sampling period T of sampling an electric stimulation pulse signal satisfies a first model, the first model is T+t<A; the t is a preset reaction lag time of the electric stimulation massage device, and the A is a preset time required for a user to perceive electric pain. The present application limits the sampling period T, so that the electric stimulation pulse signal of the to-be-massaged part can be controlled and maintained in the time perceived by the human body during the massage process, so as to prevent the parameters of the electric stimulation pulse signal from being abnormal for a long time, and the to-be-massaged part from being subjected to strong electric stimulation.

Description

Technical Field

[0001] The present invention relates to the field of electro - stimulation massage devices, and particularly to an electro - stimulation massage device, its control method and storage medium. Background Art

[0002] Currently, in existing electro - stimulation massage devices, especially for medium - low frequency massage, there is inevitably a certain degree of tingling pain, which is very likely to reduce the user experience. Under the existing product forms and convenient usage methods, it is necessary to avoid tingling pain for users as much as possible to improve the user experience.

[0003] In related technologies, research shows that the human muscle has a sensitivity to tingling pain. When the muscle is continuously stimulated for a certain period of time and the current intensity of the stimulation also exceeds a certain value, the probability of generating tingling pain is high.

[0004] It should be noted that the above description is only to illustrate the inventive concept of the present application, and does not represent that the above - related technologies are prior arts. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an electro - stimulation massage device, its control method and storage medium to solve the problem of tingling pain generated during use, aiming at the above - mentioned defects of the prior art.

[0006] The technical solution adopted by the present invention to solve its technical problem is: providing a control method for an electro - stimulation massage device, the electro - stimulation massage device includes a pair of electrodes arranged in pairs, a pulse modulation circuit connected to the electrodes, and a second detection circuit connected to the pulse modulation circuit. The electrodes are used to attach to the massage part, and the pulse modulation circuit is used to generate an electro - stimulation pulse signal to be output to the massage part through the electrodes. The steps of the control method include:

[0007] Controlling the pulse modulation circuit to generate an electro - stimulation pulse signal;

[0008] Controlling the second detection circuit to periodically sample the electro - stimulation pulse signal to obtain sampling data;

[0009] Periodically obtaining the impedance value between the pair of electrodes according to the sampling data;

[0010] Adjusting the input voltage to the pulse modulation circuit according to the impedance value; wherein,

[0011] The sampling period T for sampling the electro - stimulation pulse signal satisfies the first model, and the first model is T + t < A; the t is the preset reaction lag time of the electro - stimulation massage device, and the A is the preset time required for the user to perceive electric tingling pain.

[0012] In a preferred embodiment, the ratio of the sampling period T to the period T1 of the electrical stimulation pulse signal is S, where S is an integer greater than or equal to 1 and less than or equal to (At) / T1.

[0013] A preferred embodiment is that the step of periodically sampling the electrical stimulation pulse signal includes: during one of the sampling periods T, sampling the electrical stimulation pulse signal multiple times within a preset time period.

[0014] The preferred embodiment is the control method according to claim 3, wherein the sampling period T is equal to S times the period T1 of the electrical stimulation pulse signal, and S is an integer greater than or equal to 2 and less than or equal to (At) / T1; the step of sampling multiple times within a preset time includes: sampling S high voltage averages once to obtain multiple sampling data.

[0015] In a preferred embodiment, the sampling period T is equal to the period T1 of the electrical stimulation pulse signal, and the step of sampling multiple times within a preset time includes: sampling a high level multiple times to obtain multiple sampling data.

[0016] In a preferred embodiment, the step of controlling the second detection circuit to periodically sample the electrical stimulation pulse signal includes:

[0017] After the control pulse modulation circuit generates an electrical stimulation pulse signal, timing is performed;

[0018] Once the timing reaches the start time, the electrical stimulation pulse signal is sampled.

[0019] In a preferred embodiment, t includes the time t1 for obtaining the impedance value between the paired electrodes based on the sampling data and / or the time t2 for adjusting the input voltage to the pulse modulation circuit based on the impedance value.

[0020] In a preferred embodiment, prior to the step of controlling the pulse modulation circuit to generate an electrical stimulation pulse signal, the control method further includes the following steps:

[0021] Get the massage level and / or massage mode;

[0022] The A is determined based on the massage level and / or massage mode.

[0023] A preferred embodiment is that the step of determining A based on the massage level and / or massage mode includes:

[0024] The massage level is determined by the specified intensity level, and A is determined based on the specified intensity level; or,

[0025] The massage mode is determined to its mode type based on the massage mode, and A is determined based on the mode type; or,

[0026] The range to which a massage level belongs is determined based on the massage level, the mode type to which a massage level belongs is determined based on the massage mode, and A is determined based on the range of massage levels and the mode type.

[0027] In a preferred embodiment, the control method further includes the following steps:

[0028] When the sampling period T for periodically sampling the electrical stimulation pulse signal does not satisfy the first model;

[0029] Reduce the input voltage to a safe voltage;

[0030] Alternatively, the frequency of the electrical stimulation pulse signal generation can be adjusted to adjust the sampling period T.

[0031] In a preferred embodiment, the second detection circuit includes a sampling resistor connected in series between the pulse modulation circuit and ground. In the step of acquiring the sampling data, the sampling data is the sampling voltage of the sampling resistor.

[0032] In the step of periodically obtaining the impedance value between the paired electrodes based on the sampling data, the method of obtaining the impedance value between the paired electrodes based on the sampling data is to obtain the impedance value between the paired electrodes based on the sampling voltage, the resistance value of the sampling resistor and the input voltage.

[0033] A preferred embodiment is that the step of periodically obtaining the impedance value between paired electrodes based on the sampled data includes:

[0034] Obtain the input voltage of the pulse modulation circuit;

[0035] The second detection circuit periodically samples the voltage of the sampling resistor to obtain multiple sampling voltages as sampling data.

[0036] The current value of the electrical stimulation pulse signal is obtained based on the sampling voltage and the resistance value of the sampling resistor;

[0037] The impedance value between the paired electrodes can be obtained based on the input voltage and current values; or, the total resistance value can be obtained based on the input voltage and current values, and the impedance value between the paired electrodes can be obtained based on the total resistance value and the resistance value of the sampling resistor; or, an error margin resistance value can be set, the total resistance value can be obtained based on the input voltage and current values, and the impedance value between the paired electrodes can be obtained based on the total resistance value, the error margin resistance value, and the resistance value of the sampling resistor.

[0038] A preferred embodiment is that the electrical stimulation massage device further includes:

[0039] Power supply and control unit;

[0040] A boost unit is connected to a power supply. The boost unit boosts the input voltage of the power supply to a preset voltage and outputs it to the outside through the voltage output terminal of the boost unit.

[0041] A pulse modulation circuit, wherein the power input terminal of the pulse modulation circuit is connected to the voltage output terminal of the boost unit, the first pulse transmission terminal and the second pulse transmission terminal of the pulse modulation circuit are respectively connected to an electrode, and the control terminal of the pulse modulation circuit is connected to the control unit.

[0042] A first detection circuit is connected to the voltage output terminals of both the control unit and the boost unit. The control unit obtains the output voltage of the boost unit through the first detection circuit.

[0043] The control unit obtains the impedance value between the paired electrodes based on the output voltage of the boost unit, the resistance value of the sampling resistor, and the sampling voltage.

[0044] In a preferred embodiment, the boost unit is connected to both the control unit and the power supply, and the boost unit boosts the input voltage of the power supply to a preset voltage under the control of the control unit.

[0045] The step of adjusting the input voltage to the pulse modulation circuit according to the impedance value includes:

[0046] The preset voltage after the boost circuit is boosted is adjusted according to the impedance value, and then used as the input voltage to be output to the pulse modulation circuit.

[0047] A preferred embodiment is characterized in that the boost unit includes a power input terminal connected to the power supply, a boost circuit, an energy storage circuit, a voltage relief circuit, and a voltage output terminal connected to the pulse modulation circuit; the input terminal of the boost circuit is connected to the power input terminal, and the control terminal of the boost circuit is connected to the control unit; the input terminal of the energy storage circuit is connected to the output terminal of the boost circuit, and the output terminal of the energy storage circuit is connected to the voltage output terminal; the control terminal of the voltage relief circuit is connected to the control unit, and the input terminal of the voltage relief circuit is connected to the voltage output terminal.

[0048] The step of adjusting the preset voltage after boosting by the boost circuit according to the impedance value includes:

[0049] The voltage boost circuit and / or the energy storage circuit are controlled to boost voltage and / or reduce voltage based on the preset voltage and the impedance value between the paired electrodes, so as to control the voltage output terminal to output the preset voltage to the pulse modulation circuit.

[0050] A preferred embodiment is that the step of adjusting the input voltage to the pulse modulation circuit based on the impedance value includes:

[0051] Determine the preset voltage based on the impedance value;

[0052] According to the preset voltage, the input voltage to the pulse modulation circuit is adjusted so that the input voltage reaches the preset voltage value.

[0053] A preferred embodiment is that the step of adjusting the input voltage of the pulse modulation circuit according to the impedance value includes: when the impedance value is greater than the first impedance value and less than the second impedance value, obtaining a dynamic voltage according to the impedance value and a preset mapping relationship, using the dynamic voltage as the preset voltage, wherein the dynamic voltage is less than the voltage of the current working level of the electrical stimulation massage device, so that the electrical stimulation massage device is in a dynamic voltage output state.

[0054] A preferred embodiment is that the step of determining the preset voltage based on the impedance value includes: when the impedance value is greater than or equal to the second impedance value, obtaining a safe voltage, and using the safe voltage as the preset voltage, so that the electrical stimulation massage device is in a safe voltage output state.

[0055] A preferred embodiment is that the step of determining the preset voltage based on the impedance value further includes: when the impedance value is less than or equal to the first impedance value, using the voltage of the current working level of the electrical stimulation massage device as the preset voltage, so that the electrical stimulation massage device is in a normal output state.

[0056] A preferred embodiment is that the preset mapping relationship satisfies the following condition: the smaller the difference between the impedance value and the first impedance value, the smaller the difference between the dynamic voltage and the gear voltage.

[0057] In a preferred embodiment, the step of obtaining the dynamic voltage based on the impedance value and a preset mapping relationship further includes:

[0058]

[0059] Among them, V 动态 The dynamic voltage is V, resval is the impedance value, R1 is the first impedance value, and R2 is the second impedance value. 预设 This refers to the safe voltage.

[0060] In a preferred embodiment, the step of determining the preset voltage based on the impedance value further includes:

[0061] When the impedance value is less than or equal to the first impedance value, the voltage of the current working level of the electrical stimulation massage device is used as the preset voltage so that the electrical stimulation massage device is in normal output state.

[0062] A preferred embodiment is that the step of adjusting the input voltage to the pulse generating circuit based on the impedance value includes: determining a target voltage based on the impedance value; obtaining the difference between the impedance value and the previously obtained impedance value; if the difference is greater than or equal to a preset difference threshold, then determining the preset voltage as a safe voltage; adjusting the input voltage to the pulse generating circuit based on the preset voltage, and reducing the output voltage corresponding to the previously detected impedance value to the safe voltage in a decreasing manner within a preset time.

[0063] The technical solution adopted by the present invention to solve its technical problem is: to provide an electrostimulation massage device, the electrostimulation massage device including a memory and a processor, the memory storing a computer program, and when the computer program is executed by the processor, the processor implements the gear adjustment method.

[0064] The technical solution adopted by the present invention to solve its technical problem is: to provide a computer-readable storage medium on which a computer program is stored, wherein the computer program, when executed by a processor, implements the gear adjustment method.

[0065] The beneficial effect of this invention is that, compared with the prior art, by limiting the sampling period T, this invention ensures that the area to be massaged maintains a controllable electrical stimulation pulse signal during the massage process within the time perceived by the human body, thereby preventing the parameters of the electrical stimulation pulse signal from being abnormal for a long time, which would result in strong electrical stimulation to the area to be massaged. Attached Figure Description

[0066] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0067] Figure 1 This is a circuit diagram of the electrical stimulation massage device of the present invention;

[0068] Figure 2 This is a flowchart illustrating the control method of the electrostimulation massage device of the present invention;

[0069] Figure 3 This is a schematic diagram of the process of the present invention to periodically obtain the impedance value between paired electrodes based on sampling data;

[0070] Figure 4 This is a schematic diagram of the process of periodically sampling electrical stimulation pulse signals according to the present invention;

[0071] Figure 5This is a sampling diagram of multiple sampling of the electrical stimulation pulse signal in this invention. Figure 1 ;

[0072] Figure 6 This is a sampling diagram of multiple sampling of the electrical stimulation pulse signal in this invention. Figure 2 ;

[0073] Figure 7 This is a schematic diagram of the timing sampling process of the present invention;

[0074] Figure 8 This is a flowchart illustrating the control method of the present invention based on massage levels and / or massage modes;

[0075] Figure 9 This is a schematic diagram of the process for adjusting the sampling period T according to the present invention;

[0076] Figure 10 This is a circuit diagram of the pulse modulation circuit of the present invention;

[0077] Figure 11 This is a circuit diagram of the second detection circuit of the present invention;

[0078] Figure 12 This is a schematic diagram of the circuit structure of the first detection circuit of the present invention;

[0079] Figure 13 This is a circuit diagram of the pulse modulation circuit of the present invention;

[0080] Figure 14 This is a circuit diagram of the pulse modulation circuit of the present invention;

[0081] Figure 15 This is a circuit schematic diagram of the boost unit of the present invention;

[0082] Figure 16 This is a circuit diagram of the boost unit of the present invention;

[0083] Figure 17 This is a flowchart illustrating the first embodiment of the control method for the electrostimulation massage device of the present invention;

[0084] Figure 18 This is a flowchart illustrating a second embodiment of the control method for the electrostimulation massage device of the present invention;

[0085] Figure 19 This is a flowchart illustrating the third embodiment of the control method for the electrostimulation massage device of the present invention;

[0086] Figure 20 This is a flowchart illustrating the control method of the electrostimulation massage device of the present invention;

[0087] Figure 21It is a schematic flow diagram of the present invention for monitoring the impedance value between a pair of electrodes;

[0088] Figure 22 It is a schematic flow diagram of the association between the voltage output and the current gear of the present invention Figure 1 ;

[0089] Figure 23 It is a schematic flow diagram of the association between the voltage output and the current gear of the present invention Figure 2 ;

[0090] Figure 24 It is a schematic flow diagram of the present invention for entering the fourth impedance region and the fifth impedance region;

[0091] Figure 25 It is a schematic flow diagram of the present invention for adjusting the gear and non-adjusting the gear. Detailed implementation manners

[0092] Now, in combination with the accompanying drawings, a detailed description of the preferred embodiments of the present invention will be given.

[0093] As Figure 1 and Figure 2 shown, the present invention provides a preferred embodiment of a control method for an electrostimulation massage device.

[0094] A control method for an electrostimulation massage device, the electrostimulation massage device includes a pair of electrodes arranged in pairs, a pulse modulation circuit connected to the electrodes, and a second detection circuit connected to the pulse modulation circuit. The electrodes are used to adhere to the part to be massaged, and the pulse modulation circuit is used to generate an electrostimulation pulse signal to be output to the part to be massaged through the electrodes; the steps of the control method include:

[0095] Step S10, controlling the pulse modulation circuit to generate an electrostimulation pulse signal;

[0096] Step S20, controlling the second detection circuit to sample the electrostimulation pulse signal periodically to obtain sampling data;

[0097] Step S30, periodically obtaining the impedance value between the pair of electrodes according to the sampling data;

[0098] Step S40, adjusting the input voltage to the pulse modulation circuit according to the impedance value; wherein,

[0099] The sampling period T for sampling the electrostimulation pulse signal satisfies the first model, and the first model is T + t < A; t is the preset reaction lag time of the electrostimulation massage device, and A is the preset time required for the user to perceive electric stabbing pain.

[0100] Specifically, regarding the electrostimulation massage device, the input voltage is controlled to adjust the voltage corresponding to the electrical energy input to the pulse modulation circuit. Electrodes are attached to the area to be massaged. The pulse modulation circuit generates an electrical stimulation pulse signal, which is output to the area to be massaged through the electrodes, allowing the area to feel the electrical stimulation and thus creating a massage sensation. Through the above embodiment, the impedance value of the area to be massaged is obtained in real time. Based on the impedance value, the input voltage is adjusted purposefully, thereby regulating the current of the electrical stimulation pulse signal in the pulse modulation circuit. This ensures that the current value of the electrical stimulation pulse signal is controllably maintained during the massage process, preventing the area from being subjected to strong electrical stimulation and achieving a painless massage.

[0101] Regarding steps S10 to S40, the pulse modulation circuit converts the input electrical energy into pulse electrical energy, i.e., electrical stimulation pulse signal, through on / off operation. The voltage value of the electrical stimulation pulse signal is the voltage value of the input voltage, and the current value of the electrical stimulation pulse signal is related to the resistance value through which the current passes. That is, when the electrical stimulation massage device is running normally, external parameters are not considered. The resistance value through which the current passes is related to the state of the area to be massaged and / or the contact state between the electrode and the area to be massaged.

[0102] Each time an electrical stimulation pulse signal is generated, the second detection circuit can periodically collect the electrical stimulation pulse signal to obtain relevant data about the electrical stimulation pulse signal and form sampling data, such as the current and voltage data of the electrical stimulation pulse signal.

[0103] The sampled data is processed according to a preset algorithm. If the sampled data is the current data of an electrical stimulation pulse signal, the impedance value between the paired electrodes is obtained based on the current input voltage value. If the sampling resistor is connected in series, the voltage across the sampling resistor when the electrical stimulation pulse signal flows through it is obtained. Using the known resistance value of the sampling resistor, the current of the electrical stimulation pulse signal flowing through it is calculated. Then, using the current input voltage value, the impedance value between the paired electrodes can be obtained. Based on the impedance value, the input voltage to the pulse modulation circuit is adjusted according to a preset adjustment strategy, thereby adjusting the current value of the electrical stimulation pulse signal to make the user's electrical stimulation sensation stronger or weaker, or to maintain a certain intensity.

[0104] The above sampling and calculation processes all require a certain amount of time. The time A required for the user to perceive the electric sting is preset and can also be obtained from a large number of simulation experiments. When the user continuously feels the impact of a large pulse current within the time required for the user to perceive the electric sting, the massaged area will feel stinging. Therefore, it is necessary to eliminate the negative impact of the abnormal current within the time required for the user to perceive the electric sting.

[0105] Therefore, the "sampling" time is the sampling period T for sampling the electrical stimulation pulse signal, and the "calculation and processing" time is the preset response lag time t of the electrical stimulation massage device. Of course, t is not limited to "calculation and processing", but also includes the lag time under other known or unknown conditions, such as the electrical signal transmission time, the chip's response application, etc. The sum of T and t must be less than A, so that the impedance abnormality can be detected and a response can be made within the time A required for the user to perceive the electrical stimulation, so as to eliminate the negative impact of the current abnormality.

[0106] In other words, this application controls the sampling period T to detect impedance abnormalities within the time A required for the user to perceive electrical stinging, and then reacts to eliminate the negative impact of current abnormalities.

[0107] The value of t can be obtained from a large number of simulation experiments and stored in advance.

[0108] Of course, the sum of T and t should ideally differ significantly from A, because A is set based on the average time required for most people to perceive electrical stimulation. However, considering specific populations, factors such as age, gender, body weight, and muscle strength can have a significant impact. Furthermore, the preset time required for users to perceive electrical stimulation can be preset through at least four methods: first, determined using relevant hospital research data; second, based on the average time for most people; third, allowing users to modify it or providing suggestions for modification; and fourth, continuously optimizing and adjusting A based on machine learning or user feedback, even setting the most suitable A for specific individuals or users.

[0109] In one embodiment, t includes the time t1 for obtaining the impedance value between the paired electrodes based on the sampled data and / or the time t2 for adjusting the input voltage to the pulse modulation circuit based on the impedance value. Preferably, both t1 and t2 should be taken into account, especially t2, which can easily result in a long computation time in complex adjustment strategies. t1, on the other hand, takes into account the final sampling time obtained from different sampling methods and the time for analyzing and processing the sampled data to obtain the impedance value; this is the final t1 time.

[0110] like Figures 4 to 6 As shown, the present invention provides a preferred embodiment in which the ratio of the sampling period T to the period T1 of the electrical stimulation pulse signal is S.

[0111] The ratio of the sampling period T to the period T1 of the electrical stimulation pulse signal is S, where S is an integer greater than or equal to 1 and less than or equal to (At) / T1.

[0112] The ratio S between the sampling period T and the period T1 of the electrical stimulation pulse signal indicates whether the sampling operation and the generation of the electrical stimulation pulse signal can be performed synchronously or asynchronously. If S is 1, it means that the sampling period T is exactly one period of the electrical stimulation pulse signal, and each sampling period T corresponds to the generation period T1 of the previous electrical stimulation pulse signal. However, S must be greater than or equal to 1. If S is less than 1, it means that the sampling period T is less than the period T1 of the electrical stimulation pulse signal, which is unnecessary and cannot fully capture the entire situation of the electrical stimulation pulse signal, but only a partial situation. Ultimately, it is necessary to detect the electrical stimulation pulse signal to determine the impedance value. In addition, the sampling period T cannot be too large. If it is sampled only once in a long time, it is easy to exceed the time A. That is, S is less than or equal to an integer of (At) / T1, where At represents the remaining allowable sampling time. In fact, the sampling period T cannot be greater than the remaining allowable sampling time.

[0113] In one embodiment, the step of periodically sampling the electrical stimulation pulse signal includes:

[0114] Step S211: During one of the sampling periods T, when sampling the electrical stimulation pulse signal, multiple samples are taken within a preset time period;

[0115] Step S212: Obtain sampling data.

[0116] Specifically, to improve sampling accuracy or efficiency, the high level of the electrical stimulation pulse signal needs to be sampled within a sampling period T to enhance data precision or sampling efficiency. Therefore, sampling can be divided into two schemes. Scheme 1: The sampling period T is equal to S times the period T1 of the electrical stimulation pulse signal, where S is an integer greater than or equal to 2 and less than or equal to (At) / T1. The step of sampling multiple times within a preset time includes: sampling each of the S high levels once to obtain multiple sampled data. Scheme 2: The sampling period T is equal to the period T1 of the electrical stimulation pulse signal. The step of sampling multiple times within a preset time includes: sampling a single high level multiple times to obtain multiple sampled data.

[0117] Regarding Option 1, please refer to... Figure 5 During the generation of electrical stimulation pulse signals, the high level of each electrical stimulation pulse signal is sampled to obtain a sample data, until the sampling period T is reached.

[0118] Multiple electrical stimulation pulse signals are sampled sequentially to obtain multiple sampling data. The average value of the multiple sampling data is calculated as the new sampling data. The new sampling data is substituted into step S30 of the control method to obtain the impedance value between the paired electrodes. This impedance value is the representative impedance value corresponding to the multiple sampling data, which improves accuracy and improves the buffering of input voltage adjustment to prevent rapid and large-amplitude adjustments from causing a poor user experience, even though they will not cause stinging.

[0119] Alternatively, the impedance value can be calculated from the sampled data after sampling each high level to obtain the impedance values ​​corresponding to multiple electrical stimulation pulse signals, and then the average value can be calculated as the sampled data for the sampling period T.

[0120] Regarding Option 2, please refer to... Figure 6 Compared to Scheme 1, the sampling period T is equal to the period T1 of the electrical stimulation pulse signal. Multiple sampling refers to sampling the high level of an electrical stimulation pulse signal multiple times to obtain multiple sample data reflecting different time points of that high level. While multiple samplings of an electrical stimulation pulse signal can also obtain multiple sample data, these multiple sample data will ultimately form a sample data set paired with the electrical stimulation pulse signal. This is to prevent errors in the second detection circuit or the circuitry of the electrical stimulation massage device, thus ensuring that the final sample data is more accurate and reflects the most realistic signal condition of the current electrical stimulation pulse signal. Similarly, it can be understood that not only will multiple sample data eventually form a sample data set paired with the electrical stimulation pulse signal, but the impedance values ​​of multiple sample data can also be calculated separately, and then the average of these impedance values ​​can be calculated as the sampling data for the sampling period T.

[0121] The more times a sample is taken, the more accurate the sampled data will be.

[0122] like Figure 7 As shown, the present invention provides a preferred embodiment of timing sampling.

[0123] The steps for controlling the second detection circuit to periodically sample the electrical stimulation pulse signal include:

[0124] Step S221: After the control pulse modulation circuit generates an electrical stimulation pulse signal, timing is performed;

[0125] Step S222: When the timing reaches the start time, the electrical stimulation pulse signal is sampled.

[0126] When the control pulse modulation circuit generates an electrical stimulation pulse signal, the ADC sampling timer is started. When the timing reaches the start time, the electrical stimulation pulse signal has been applied to the massage area and the two ends of the sampling resistor. At this time, starting the ADC sampling can accurately and timely acquire the voltage of the sampling resistor.

[0127] like Figure 8 As shown, the present invention provides a preferred embodiment of a control method based on massage levels and / or massage modes.

[0128] Prior to the step of controlling the pulse modulation circuit to generate an electrical stimulation pulse signal, the control method further includes the following steps:

[0129] Step S51: Obtain the massage level and / or massage mode;

[0130] Step S52: Determine A based on the massage intensity and / or massage mode.

[0131] Specifically, different massage levels have different input voltages, which affect A to some extent. For example, it can cause changes in skin condition and parameters of the electrical stimulation pulse signal, thus affecting sampling or data processing. Similarly, massage modes also affect A, as they involve changes in both voltage output and the frequency of the electrical stimulation pulse signal. Therefore, by determining A based on the massage level and / or massage mode, and enabling automatic adjustment of A, the probability of non-painful transmission can be further reduced.

[0132] The steps to determine A based on the massage intensity and / or massage mode include:

[0133] Step S521: Determine the range of massage intensity based on the intensity level, and determine A based on the range of intensity.

[0134] Step S522: Determine the mode type according to the massage mode, and determine A according to the mode type;

[0135] Step S523: Determine the range of massage intensity based on the massage intensity level, determine the mode type based on the massage mode, and determine A based on the range of intensity level and mode type.

[0136] The determination of A can be categorized into three possibilities. First, it can be determined by the massage intensity level. Different massage intensity levels have different preset voltage values, and these different voltage values ​​cause variations in A, thus determining A based on the current intensity level. Second, it can be determined by the massage mode. Massage modes include acupuncture, cupping, scraping, tuina, massage, acupressure, percussion, and slimming massage. Different massage modes have different changes in electrical stimulation pulse signal parameters, such as changes in current, voltage, and frequency, thus determining the mode type and thus A. Third, it can be a combination of the first and second possibilities. Since both the massage intensity level and the massage mode have an impact, both are used to determine A.

[0137] There are at least two ways to determine the third point. The first is to set an A for each massage mode and corresponding massage level, and select the corresponding massage mode and massage level to directly determine A. The second is to set a preset score for each massage mode and a preset score for each massage level, and finally obtain the sum of the scores based on the selection to determine A. Here, A is related to the sum of the scores.

[0138] In one embodiment, steps S521 to S523 are not executed in sequence; one of the steps may be selected depending on the specific circumstances.

[0139] like Figure 9 As shown, the present invention provides a preferred embodiment for adjusting the sampling period T.

[0140] The control method also includes the following steps:

[0141] Step S61: When the sampling period T of the periodic sampling of the electrical stimulation pulse signal does not satisfy the first model;

[0142] Step S62: Reduce the input voltage to a safe voltage;

[0143] Step S63: Adjust the generation frequency of the electrical stimulation pulse signal to adjust the sampling period T.

[0144] Specifically, if A is determined, and the sampling period T obtained by calculation for periodically sampling the electrical stimulation pulse signal does not satisfy the first model—for example, if there is a problem with the sampling period T or the time t, or if the electrical stimulation massage device malfunctions, such as being damaged or having low battery—corresponding measures are needed to prevent the generation of electrical irritation. For example, in step S62, the input voltage is reduced to a safe voltage. Setting a safe voltage value prevents electrical irritation from the source. The safe voltage is information obtained from experiments or relevant research data indicating a voltage that is acceptable to the human body and will not cause irritation. Another example is in step S63, where the generation frequency of the electrical stimulation pulse signal is adjusted to adjust the sampling period T. Increasing the generation frequency of the electrical stimulation pulse signal reduces the sampling period T, thus allowing the sampling period T to satisfy the first model again.

[0145] like Figures 10 to 17 As shown, the present invention provides a preferred embodiment of the control circuit for an electrical stimulation massage device.

[0146] The electrostimulation massage device includes a power supply 100, a control unit 600, a boost unit 200, paired electrodes 301, a pulse modulation circuit 300, a first detection circuit 400, and a second detection circuit 500. The boost unit 200 is connected to both the control unit 600 and the power supply 100. Under the control of the control unit 600, the boost unit 200 boosts the input voltage of the power supply 100 to a preset voltage and outputs it through its voltage output terminal. The electrodes 301 are attached to the area to be massaged. The power input terminal 311 of the pulse modulation circuit 300 is connected to the voltage output terminal of the boost unit 200. The first pulse transmission terminal and the second pulse transmission terminal of the pulse modulation circuit 300 are respectively connected to one of the electrodes 301. 1. Connection: The control terminal of the pulse modulation circuit 300 is connected to the control unit 600. The first detection circuit 400 is connected to the voltage output terminals of the control unit 600 and the boost unit 200 respectively. The control unit 600 obtains the output voltage of the boost unit 200 through the first detection circuit 400. The second detection circuit 500 is connected to the control unit 600. The sampling resistor R101 of the second detection circuit 500 is connected in series between the pulse modulation circuit 300 and the ground terminal. The control unit 600 obtains the sampling voltage of the sampling resistor R101 through the second detection circuit 500. The control unit 600 obtains the impedance value between the paired electrodes 301 based on the output voltage, the resistance value of the sampling resistor R101, and the sampling voltage.

[0147] Specifically, the boost unit 200 is provided with a power input terminal, a voltage output terminal and a control terminal, the pulse modulation circuit 300 is provided with a control terminal, a power input terminal 311, a ground terminal 312, a first pulse transmission terminal and a second pulse transmission terminal, the first detection circuit 400 includes a transmission terminal 420 and a detection terminal 410, the second detection circuit 500 also includes a transmission terminal 520 and a detection terminal 510, and the paired electrodes 301 include a first electrode and a second electrode.

[0148] In one embodiment, reference Figure 11 The boost unit 200 is connected to the power supply 100 through the power input terminal. The power supply 100 supplies power to the boost unit 200. The boost unit 200 is also connected to the power input terminal 311 of the pulse modulation circuit 300 through the voltage output terminal. It boosts the input voltage of the power supply 100 to a preset voltage and transmits it to the pulse modulation circuit 300 as the voltage value of the electrical stimulation pulse signal. The boost unit 200 is also connected to the control unit 600 through the control terminal. Under the control of the control unit 600, it performs a boost operation to boost the input voltage of the power supply 100 to the preset voltage.

[0149] The pulse modulation circuit 300 is first connected to the first electrode and the second electrode through the first pulse transmission terminal and the second pulse transmission terminal, respectively. The pulse modulation circuit 300 is also grounded through the ground terminal 312, forming a current loop, which is equivalent to being connected to the negative terminal of the power supply 100. The control terminal of the pulse modulation circuit 300 is connected to the control unit 600. Under the control of the control unit 600, the electrical energy provided by the boost unit 200 is used to generate a pulse signal, i.e., an electrical stimulation pulse signal. When the first electrode and the second electrode are conducting, the first pulse transmission terminal outputs the electrical stimulation pulse signal through the first electrode, and the second pulse transmission terminal receives the electrical stimulation pulse signal through the second electrode and then outputs it through the ground terminal 312, forming a pulse cycle. At this time, the first electrode and the second electrode are attached to the area to be massaged, realizing electrical conduction between them. The electrical stimulation pulse signal is input to the area to be massaged through the electrode 301, allowing the user to experience electrical stimulation and form a massage sensation.

[0150] In one embodiment, reference Figure 12Both the first detection circuit 400 and the second detection circuit 500 are connected to the control unit 600 through their own transmission terminals. The first detection circuit 400 is connected to the voltage output terminal of the boost unit 200 through its detection terminal, and the second detection circuit 500 is connected in parallel to the sampling resistor R101 through its detection terminal 510. To reduce or even prevent excessive current from the electrical stimulation pulse signal from causing stinging at the massage site, allowing the user to perform the entire electrical stimulation massage process without pain, the control unit 600 first obtains the voltage value at the voltage output terminal of the boost unit 200 through the first detection circuit 400, i.e., the specific voltage value after boosting the input voltage of the power supply 100, thereby determining whether the preset voltage has reached the expected value. The control unit 600 then obtains the sampling voltage on the sampling resistor R101 through the second detection circuit 500. Finally, the control unit 600 obtains the output voltage of the boost unit 200 and the sampling voltage of the sampling resistor R101, and stores the sampling voltage of the sampling resistor R101. The resistance value is obtained by using a preset algorithm based on the output voltage, the resistance value of the sampling resistor R101, and the sampling voltage to determine the impedance value between the paired electrodes 301. This means that the current flowing through the sampling resistor R101 is obtained using the resistance value and the sampling voltage, thus yielding the current value of the electrical stimulation pulse signal of the pulse modulation circuit 300. The voltage value of the electrical stimulation pulse signal of the pulse modulation circuit 300 is obtained using the output voltage. Finally, the total resistance value corresponding to the pulse modulation circuit 300 is obtained based on the current and voltage values ​​of the electrical stimulation pulse signal. The impedance value can be obtained by subtracting the resistance of the sampling resistor R101 from the total resistance value, or by subtracting the resistance of the sampling resistor R101 from the total resistance value and then subtracting a preset error margin. The preset error margin can be the internal resistance generated by the wires or components of the pulse modulation circuit 300, the internal resistance generated by the electrode 301 due to its own material or shape, or the internal resistance generated at other different locations.

[0151] Furthermore, the control unit 600 acquires the impedance value of the area to be massaged in real time through the above operations, and adjusts the output voltage of the boost unit 200 in a purposeful manner according to the impedance value, thereby adjusting the current of the electrical stimulation pulse signal of the pulse modulation circuit 300, so that the area to be massaged can maintain the current value of the electrical stimulation pulse signal consistently and controllably during the massage process, avoiding strong electrical stimulation to the area to be massaged, and achieving painless massage.

[0152] In one embodiment, the control unit 600 preferably includes a microcontroller unit (MCU) and peripheral circuitry. A microcontroller unit (MCU), also known as a single-chip microcomputer, is a central processing unit (CPU) with its frequency and specifications appropriately reduced. It integrates memory, timer, USB, A / D converter, UART, PLC, DMA, and even LCD driver circuitry onto a single chip, forming a chip-level computer for different application combinations. The MCU's pins are connected to various functional modules, such as the boost unit 200, pulse modulation circuit 300, first detection circuit 400, and second detection circuit 500, to control and detect electrical pulses. Of course, any commercially available MCU can be used, and the performance requirements for the microcontroller are not high.

[0153] In one embodiment, the second detection circuit 500 further includes a first protection resistor R103, a first capacitor C1, and a first Zener diode D1. The control unit 600 is connected between the pulse modulation circuit 300 and the sampling resistor R101 through the first protection resistor R103. The control unit 600 is also connected between the sampling resistor R101 and the ground terminal through the first capacitor C1 and the first Zener diode D1, respectively. The anode of the first Zener diode D1 is grounded. Specifically, the two ends of the sampling resistor R101 are connected to the ground terminal 312 and the ground terminal of the pulse modulation circuit 300, respectively. The electrical energy output from the pulse modulation circuit 300 flows through the sampling resistor R101, and the voltage of the sampling resistor R101 is obtained by the control unit 600. By setting a first protection resistor R103, which is connected to the control unit 600 and the sampling resistor R101, excessive voltage input to the control unit 600 is prevented, and voltage division is performed to effectively protect the control unit 600. By setting a first capacitor C1, the sampling signal is filtered to improve the accuracy of the sampling data. By setting a first Zener diode D1, preferably a Zener diode, voltage regulation is achieved.

[0154] In one embodiment, reference Figure 3 The steps for periodically obtaining the impedance values ​​between paired electrodes based on the sampled data include:

[0155] Step S31: Obtain the output voltage of the pulse generation circuit;

[0156] Step S32: Periodically sample the voltage of the sampling resistor through the first sampling circuit to obtain multiple sampling resistor voltages as sampling data;

[0157] Step S33: Obtain the current value of the electrical stimulation pulse signal based on the voltage of the sampling resistor and the resistance value of the sampling resistor;

[0158] Step S341: Obtain the impedance value between the paired electrodes based on the output voltage and current values;

[0159] Step S342: Obtain the total resistance value based on the output voltage and current values, and obtain the impedance value between the paired electrodes based on the total resistance value and the resistance value of the sampling resistor;

[0160] Step S343: Set the resistance value of the error margin, obtain the total resistance value based on the output voltage and current values, and then obtain the impedance value between the paired electrodes based on the total resistance value, the resistance value of the error margin, and the resistance value of the sampling resistor.

[0161] Specifically, during the normal operation of the pulse generation circuit, the output voltage and the sampling resistor voltage are acquired to obtain the current and voltage values ​​of the electrical stimulation pulse signal. The total resistance of the pulse generation circuit is then obtained based on these two values. If the impedance between the paired electrodes and the massage area is considered, it can be regarded as the total resistance. The impedance between the paired electrodes is obtained based on the output voltage and current values. However, the resistance of the pulse generation circuit is not solely composed of the impedance of the massage area to which the paired electrodes are attached; it should also include the resistance value of the sampling resistor. This is mainly because the sampling resistor in this invention has a relatively large value, and the difference between it and the impedance of the massage area is not very large and cannot be ignored. To improve accuracy and achieve… The total resistance is obtained based on the output voltage and current values. The impedance between the paired electrodes is then obtained based on the total resistance and the resistance of the sampling resistor. A preset error margin exists, which can be the internal resistance generated by the wires or components of the pulse generation circuit, the internal resistance generated by the electrode itself due to its material or shape, or the internal resistance generated at other different locations. The preset error margin can be calculated experimentally or theoretically to further improve accuracy. Therefore, the resistance value of the error margin is set, the total resistance is obtained based on the output voltage and current values, and the impedance between the paired electrodes is obtained based on the total resistance, the error margin, and the resistance of the sampling resistor.

[0162] Furthermore, an algorithmic model is provided for calculating the impedance value between the three electrodes 301.

[0163] Option 1: The control unit 600 stores a first model for calculating the impedance value between electrodes 301. The first model is... R 阻抗 The impedance value between the paired electrodes 301, V 采 R is the sampling voltage. 采 V represents the resistance value of the sampling resistor R101. 输 For the output voltage of the boost unit 200, I调 This is the current output by the pulse modulation circuit 300. First, through V... 采 and R 采 Obtain the current flowing through the sampling resistor R101, which is the current I of the output pulse of the pulse modulation circuit 300. 调 By obtaining the output voltage V of the boost unit 200 输 via V 输 and I 调 The resistance value of the pulse modulation circuit 300 is obtained. The pulse output of the pulse modulation circuit 300 is the electrical stimulation pulse signal, and the resistance value of the pulse modulation circuit 300 is the impedance value of the part to be massaged where the paired electrodes 301 are attached.

[0164] Option 2: The control unit 600 stores a second model for calculating the impedance value between electrodes 301. The second model is... R 阻抗 The impedance value between the paired electrodes 301, V 采 R is the sampling voltage. 采 V represents the resistance value of the sampling resistor R101. 输 For the output voltage of the boost unit 200, I 调 This refers to the current that outputs the pulse from the pulse modulation circuit 300. Compared to Scheme 1, the resistance of the pulse modulation circuit 300 is not solely determined by the impedance of the area to be massaged, where the paired electrodes 301 are attached, but should also include the resistance value R of the sampling resistor R101. 采 The main reason is that the sampling resistor R101 of this invention has a relatively large value, and the difference between it and the impedance value of the part to be massaged is not very large and cannot be ignored. In order to improve accuracy, the sampling resistor R101 of this invention has a relatively large value.

[0165] Option 3: The control unit 600 stores a third model for calculating the impedance value between electrodes 301. The third model is... R 阻抗 The impedance value between the paired electrodes 301, V 采 R is the sampling voltage. 采 V represents the resistance value of the sampling resistor R101. 输 For the output voltage of the boost unit 200, I 调 R is the current of the output pulse of the pulse modulation circuit 300. 余 This is the preset error margin.

[0166] Compared to Scheme 2, a preset error margin is added. The preset error margin can be the internal resistance generated by the wires or components of the pulse modulation circuit 300, the internal resistance generated by the electrode 301 due to its own material or shape, or the internal resistance generated at other different locations. The preset error margin can be calculated experimentally or theoretically to further improve accuracy.

[0167] The second detection circuit 500 also includes a second protection resistor R102, which is connected in series between the pulse modulation circuit 300 and the sampling resistor R1. By setting the second protection resistor R102, the amount of electrical energy flowing into the control unit 600 is reduced, or voltage division is performed to reduce the voltage value input to the control unit 600, thereby protecting the entire second detection circuit 500.

[0168] In one embodiment, reference Figure 13 The first detection circuit 400 includes a first voltage divider resistor R104 and a second voltage divider resistor R105. The first voltage divider resistor R104 is connected to the voltage output terminal of the boost unit 200 and the second voltage divider resistor R105, respectively. The other end of the second voltage divider resistor R105 is grounded. The control unit 600 is connected to the connection node between the first voltage divider resistor R104 and the second voltage divider resistor R105 to obtain the voltage divided by the second voltage divider resistor R105. The control unit 600 obtains the output voltage of the boost unit 200 based on the voltage divided by the second voltage divider resistor R105, the resistance value of the first voltage divider resistor R104, and the resistance value of the second voltage divider resistor R105.

[0169] Specifically, by utilizing the voltage division of the first voltage divider resistor R104 and the second voltage divider resistor R105, the output voltage of the boost unit 200 is obtained through the first voltage divider resistor R104 and the second voltage divider resistor R105. Then, by reducing the value of the second voltage divider resistor R105, the main control unit can directly obtain the voltage of the second voltage divider resistor R105 without the need for additional components for protection or current shunting. The first voltage divider resistor R104 should be much larger than the resistance value of the second voltage divider resistor R105. By reducing the voltage value of the second voltage divider resistor R105, and by knowing the resistance values ​​of the first voltage divider resistor R104 and the second voltage divider resistor R105, the control unit 600 can directly obtain the output voltage of the boost unit 200. The values ​​of the first voltage divider resistor R104 and the second voltage divider resistor R105 need to be selected considering both the range of the output voltage of the boost unit 200 and the voltage limits of the control unit 600. The resistance ratio of the second voltage divider resistor R105 to the first voltage divider resistor R104 is between 1:37 and 1:72. The resistance of the second voltage divider resistor R105 is preferably 10kΩ, and its value can be between 9kΩ and 11kΩ. The resistance of the first voltage divider resistor R104 is preferably 510kΩ, and its value can be between 450kΩ and 570kΩ.

[0170] In one embodiment, the pulse modulation circuit 300 further includes at least one set of control arms, each control arm including a first control switch 321 and a second control switch 324. The control unit 600 is connected to the control terminals of both the first control switch 321 and the second control switch 324 to control the on / off states of the first control switch 321 and the second control switch 324 respectively. The input terminal of the first control switch 321 is connected to the power input terminal 311, and the output terminal of the second control switch 324 is connected to ground. The output terminal of the first control switch 321 is connected to one of the first pulse transmission terminal and the second pulse transmission terminal, and the input terminal of the second control switch 324 is connected to the other of the first pulse transmission terminal and the second pulse transmission terminal.

[0171] Specifically, when the boost circuit has a stable input voltage value, and both electrodes 301 are attached to the area to be massaged, the control unit 600 controls the on / off state of the first control switch 321 and the second control switch 324 to generate a pulse signal, i.e., an electrical stimulation pulse signal. The electrical energy input from the boost circuit passes sequentially through the first control switch 321, the first electrode, the area to be massaged, the second electrode, and the second control switch 324 before being output. It then flows through the sampling resistor R101 of the second detection circuit 500, stimulating the area to be massaged with the pulse current, allowing the area to experience a massage sensation. By adjusting the input voltage, the current passing through the area to be massaged is adjusted to achieve different massage intensities. Combined with different pulse frequencies, different massage techniques are achieved. The control unit 600 is connected to the first control switch 321 via control terminal 331 and to the second control switch 324 via control terminal 334.

[0172] In one embodiment, reference Figure 14 The control arm is configured with two sets. The output terminals of the two first control switches (321, 322) are connected to the first pulse transmission terminal and the second pulse transmission terminal, respectively. The input terminals of the two second control switches (323, 324) are connected to the first pulse transmission terminal and the second pulse transmission terminal, respectively. The four control switches form an H-bridge circuit to achieve rapid control of the interactive switching of the two sets of control arms. The control unit 600 is connected to the first control switch 322 through control terminal 332 and to the second control switch 323 through control terminal 333.

[0173] In one embodiment, reference Figure 15The first control switch (321, 322) and the second control switch (323, 324) are both transistors. Taking the H-bridge circuit as an example, removing two of the transistors creates a control arm. This includes a first transistor Q1, a second transistor Q2, a third transistor Q3, and a fourth transistor Q4. The first transistor Q1 and the second transistor Q2 serve as the first control switches (321, 322), and the third transistor Q3 and the fourth transistor Q4 serve as the second control switches (323, 324). The emitters of both the first transistor Q1 and the second transistor Q2 are connected to the input terminal of the boost unit 200, serving as the power input terminal 311 of the pulse modulation circuit 300. The bases of both the first transistor Q1 and the second transistor Q2 are connected to the control unit 600. The control terminal of the control unit 600 is connected. The collectors 301 of the first transistor Q1 and the second transistor Q2 are connected to the two electrodes 301 respectively. The emitters of the third transistor Q3 and the fourth transistor Q4 are connected to the two electrodes 301 respectively. The collectors 301 of the third transistor Q3 and the fourth transistor Q4 are connected to the ground terminal 312 of the pulse modulation circuit 300. The bases of the third transistor Q3 and the fourth transistor Q4 are both connected to the control terminal of the control unit 600. The control unit 600 can control the on / off state of the first transistor Q1, the second transistor Q2, the third transistor Q3 and the fourth transistor Q4 respectively. Preferably, it controls the on / off state of the first transistor Q1 and the fourth transistor Q4 simultaneously, and controls the on / off state of the second transistor Q2 and the third transistor Q3 simultaneously.

[0174] More specifically, the input terminal of the boost unit 200 is connected to the control unit 600 through a pull-up resistor, providing the voltage to drive the transistors to turn on and off. A resistor is connected in series with the base of each transistor to protect the control unit 600 and generate a drive voltage at the base to turn on the transistors. Both the first pulse transmission terminal and the second pulse transmission terminal are grounded through a bidirectional variable resistor diode (D2, D3), achieving bidirectional blocking between the motor and ground, facilitating current return to ground. Specifically, the power input terminal 311 of the pulse modulation circuit 300 is connected to the control unit 600 through resistor R110 and control terminal 331, through resistor R111 and control terminal 332, through resistor R112 and control terminal 333, and through resistor R113 and control terminal 334; and a resistor R106 is connected in series between control terminal 331 and the base of the first transistor Q1, a resistor R107 is connected in series between control terminal 332 and the base of the second transistor Q2, a resistor R108 is connected in series between control terminal 333 and the base of the third transistor Q3, and a resistor R109 is connected in series between control terminal 334 and the base of the fourth transistor Q4.

[0175] In one embodiment, reference Figure 16 and Figure 17The boost unit 200 includes a power input terminal connected to the power supply 100, a boost circuit 210, an energy storage circuit 220, a voltage relief circuit 230, and a voltage output terminal 201 connected to the pulse modulation circuit 300. The input terminal of the boost circuit 210 is connected to the power input terminal, and the control terminal of the boost circuit 210 is connected to the control unit 600. The input terminal of the energy storage circuit 220 is connected to the output terminal of the boost circuit 210, and the output terminal of the energy storage circuit 220 is connected to the voltage output terminal 201. The control terminal of the voltage relief circuit 230 is connected to the control unit 600, and the input terminal of the voltage relief circuit 230 is connected to the voltage output terminal 201. The control unit 600 is used to control the boost circuit 210 and / or the energy storage circuit 220 to boost voltage and / or control the voltage relief circuit 230 to reduce voltage according to a preset voltage and the impedance value between the paired electrodes 301, so as to control the voltage output terminal 201 to output a preset voltage to the pulse modulation circuit 300.

[0176] Specifically, the input terminal of the boost circuit 210 is connected to the power input terminal to obtain the voltage of the power supply 100, and the control terminal of the boost circuit 210 is connected to the control unit 600 to receive control commands and boost the voltage of the power supply 100; the input terminal of the energy storage circuit 220 is connected to the output terminal of the boost circuit 210 to store energy in the boosted voltage, and the output terminal of the energy storage circuit 220 is connected to the voltage output terminal 201 to output a preset voltage to the voltage output terminal 201; the control terminal of the pressure relief circuit 230 is connected to the control unit 600, and the input terminal of the pressure relief circuit 230 is connected to the voltage output terminal 201 to reduce the output voltage of the boost circuit 210 to the voltage output terminal 201 according to the control commands.

[0177] When the impedance between the paired electrodes 301 increases, the control unit 600 controls the pressure relief circuit 230 to reduce the voltage output by the voltage output terminal 201. When the impedance decreases, the control unit 600 controls the boost circuit 210 to boost the voltage output by the power supply 100, so as to dynamically maintain the output power of the voltage output terminal 201 unchanged.

[0178] The boost circuit 210 includes an inductor L and a MOSFET. One end of the inductor L is connected to the input terminal of the boost circuit 210, and the other end is connected to the output terminal of the boost circuit 210. The gate of the MOSFET is connected to the control terminal of the boost circuit 210, the drain of the MOSFET is connected between the inductor L and the output terminal of the boost circuit 210, and the source of the MOSFET is grounded. The MOSFET mainly functions as a current switching switch. After its gate is connected to the control terminal of the boost circuit 210, it can receive control commands from the control unit 600 and turn on or off according to the control commands. When the MOSFET is on, the current in the inductor L flows through the MOSFET to ground, allowing the power supply 100 to charge the inductor L. When the MOSFET is off, the current in the inductor L flows to the energy storage circuit 220 to boost the voltage output by the power supply 100. A capacitor C3 is connected between the power supply 100 and the inductor L and grounded for filtering.

[0179] A resistor R14 is connected in series between the gate of the MOSFET and the control terminal of the boost circuit 210 to protect the control unit 600. A resistor R15 is also connected to the gate of the MOSFET and grounded to ground the control unit 600 under no-load conditions and prevent the MOSFET from turning on.

[0180] The voltage output circuit also includes a diode D4 connected in series between the output terminal of the boost circuit 210 and the input terminal of the energy storage circuit 220; and / or, the energy storage circuit 220 is a capacitor-type energy storage circuit 220. When the MOSFET of the boost circuit 210 is turned off, the current of the circuit PL1 flows through the diode D4 to the energy storage circuit 220, making the voltage output by the energy storage circuit 220 to the voltage output terminal 201 the sum of the voltage output by the inductor L and the energy storage voltage of the energy storage circuit 220, thereby achieving voltage boost.

[0181] The energy storage circuit 220 is a capacitor-type energy storage circuit. It includes a fourth capacitor C4 and a fifth capacitor C5 connected in parallel between the input and output terminals. The other ends of both capacitors C4 and C5 are grounded. The fourth and fifth capacitors are primarily used for energy storage. The voltage output from the energy storage circuit 220 to the voltage output terminal 201 is the sum of the voltage output from the inductor L, the voltage across the fourth capacitor C4, and the voltage across the fifth capacitor C5, thus achieving voltage boosting. The energy storage capacity of the fourth capacitor C4 is greater than that of the fifth capacitor C5.

[0182] The voltage relief circuit 230 includes a first resistor R16, a fifth transistor Q5, a second resistor R17, and a third resistor R18. The first resistor R16 is connected in series between the control terminal of the voltage relief circuit 230 and the base of the fifth transistor Q5, with the emitter of the fifth transistor Q5 grounded. One end of the third resistor R18 is connected between the first resistor R16 and the base of the fifth transistor Q5, and the other end is grounded. The second resistor R17 is connected in series between the input terminal of the voltage relief circuit 230 and the collector of the fifth transistor Q5. Specifically, when the output voltage of the energy storage circuit 220 to the voltage output terminal 201 is higher than the preset voltage, the control unit 600 controls the transistor to conduct, and the voltage relief circuit 230 relieves the voltage of the inductor L and the energy storage circuit 220, so that the output voltage of the energy storage circuit 220 to the voltage output terminal 201 is reduced to the preset voltage, and the preset voltage is output to the pulse modulation circuit 300 through the voltage output terminal 201.

[0183] As shown in the figure, the present invention provides a preferred embodiment of an output strategy for setting the output voltage of paired electrodes.

[0184] refer to Figure 18 The control method for the electrical stimulation massage device includes the following steps:

[0185] S711: Obtain the current impedance value between paired electrodes.

[0186] In a specific implementation scenario, the current impedance value between paired electrodes is acquired either at a preset period or in real time. For example, the impedance value between paired electrodes is acquired multiple times consecutively at a preset period, and the average of the acquired impedance values ​​is used as the current impedance value. Since the human body's reaction time to stinging is between 300ms and 1200ms, to avoid the adjustment of the electrical stimulation device lagging behind the time the human body feels stinging, in this implementation scenario, the period time is set to be less than 300ms, for example, it could be 100ms or 50ms.

[0187] S712: Controls the output voltage supplied to the paired electrodes based on the current impedance value.

[0188] In a specific implementation scenario, the output voltage to the paired electrodes is controlled based on the current impedance value. The current impedance value reflects the wearing status of the wearable device. If the wearable device is in a normal wearing state, the output voltage can be output according to the actual working level set by the user. If the wearable device is in an abnormal wearing state, the output voltage to the electrodes needs to be reduced. Specifically, it can be reduced directly to 0 or another preset lower voltage value, or it can be adjusted in real time according to the current impedance value to avoid reducing the voltage value too much at once, resulting in poor massage effect and the user not feeling electrical stimulation.

[0189] In one implementation scenario, when reducing the output voltage, it is done incrementally to avoid sudden voltage changes that could be unsettling for the user. Specifically, the voltage can be reduced in a step-like manner, decreasing by a certain amount at preset intervals (e.g., 100ms). Each reduction can be equal or unequal (including both increasing and decreasing). Furthermore, the difference between the current impedance value and the previously acquired impedance value is calculated. If the difference is greater than or equal to a preset threshold, it indicates a large difference between the two impedance values, resulting in a large difference in the corresponding output voltage. Therefore, the output voltage corresponding to the previously acquired impedance value is reduced incrementally within a preset time (e.g., 2s) to effectively prevent sudden voltage changes that could cause user discomfort. If the difference is less than the preset threshold, it indicates a small difference between the two impedance values, allowing for direct voltage adjustment and improving adjustment efficiency.

[0190] In this implementation scenario, step S712 includes step S7121. S7121: When the current impedance value is greater than the first impedance value and less than the second impedance value, a dynamic voltage is obtained according to the current impedance value and the preset mapping relationship. The dynamic voltage is used as the output voltage and output to the paired electrodes. The dynamic voltage is less than the voltage of the current working position of the electrical stimulation device, so that the electrical stimulation device is in the dynamic voltage output state.

[0191] A first impedance value and a second impedance value are set, with the first impedance value being less than the second impedance value. The first impedance value can be any value between 1000Ω and 2000Ω, and the second impedance value can be any value between 4500Ω and 5500Ω. For example, the first impedance value could be 1500Ω and the second impedance value could be 5000Ω. When the current human body impedance is greater than the first impedance value but less than the second impedance value, it indicates poor electrode contact with the body, resulting in a small contact area. In this case, the output voltage needs to be reduced to avoid stinging. A dynamic voltage is obtained based on the current human body impedance and a preset mapping relationship. This dynamic voltage is then output to the paired electrodes, and it is less than the current output voltage. The output voltage can be the voltage at the current operating level of the electrical stimulation device, or it can be the dynamic voltage adjusted based on the human body impedance previously. The electrical stimulation device is currently in a dynamic voltage output state, and the output voltage to the electrodes changes dynamically. When the current impedance value is high, the output voltage is low because a higher current impedance value indicates poor electrode contact with the body, and reducing the output voltage effectively reduces the occurrence of stinging.

[0192] In one implementation scenario, the adjustment value of the current output voltage can be obtained based on the current human body impedance. The smaller the difference between the current human body impedance and the first impedance value, the larger the adjustment value, and the smaller the difference between the dynamic voltage and the current output voltage.

[0193] In a specific implementation scenario, the dynamic voltage is obtained according to the following formula:

[0194]

[0195] Among them, V 动态 The voltage is dynamic, resval is the current human body impedance, R1 is the first impedance value, and R2 is the second impedance value (V). 预设 For safe voltage, V 挡位 This refers to the voltage at the current operating level.

[0196] The gear voltage is the voltage value corresponding to the working gear based on the adjustment gear value input by the user, or the gear voltage obtained from the real-time working gear of the electrical stimulation device.

[0197] As can be seen from the above description, in this embodiment, when the current impedance value is greater than the first impedance value and less than the second impedance value, it indicates that the electrode is not well attached to the human body. The dynamic voltage is obtained according to the current impedance value and the preset mapping relationship. The dynamic voltage is used as the output voltage to output to the paired electrodes. This can maintain a certain massage effect and massage experience while reducing the output voltage to avoid stinging.

[0198] In one embodiment, reference Figure 19 The control method for the provided electrical stimulation massage device includes the following steps:

[0199] S721: Obtain the current impedance value between paired electrodes.

[0200] In a specific implementation scenario, step S721 is basically the same as step S711 in the control method of the electrostimulation massage device provided by the present invention, and will not be described again here.

[0201] S722: Controls the output voltage supplied to the paired electrodes based on the current impedance value.

[0202] In this implementation scenario, step 722 includes steps S7221, S7222 and S7223.

[0203] S7221: When the current impedance value is greater than the first impedance value and less than the second impedance value, the dynamic voltage is obtained according to the current impedance value and the preset mapping relationship. The dynamic voltage is used as the output voltage to be output to the paired electrodes. The dynamic voltage is less than the voltage of the current working position of the electrical stimulation device, so that the electrical stimulation device is in the dynamic voltage output state.

[0204] In a specific implementation scenario, step S7221 is basically the same as step S7121 in the control method of the electrostimulation massage device provided by the present invention, and will not be described again here.

[0205] S7222: When the current impedance value is greater than or equal to the second impedance value, a safety voltage is obtained and output as the safety voltage to the paired electrodes so that the electrical stimulation device is in a safety voltage output state.

[0206] In a specific implementation scenario, when the current human body impedance is greater than or equal to the second impedance value, it indicates extremely poor electrode contact with the body, a very small contact area, and a high probability of tip discharge. The output voltage needs to be immediately reduced to avoid stinging. A safe voltage is obtained and used as the output voltage to supply the paired electrodes, ensuring the electrical stimulation device operates at a safe voltage output. The safe voltage is any value between 8V and 12V. Due to the low safe voltage, even with a very small contact area between the electrodes and the skin, a large current will not be generated. Therefore, the user will not experience stinging during use.

[0207] S7223: When the current impedance value is less than or equal to the first impedance value, the voltage of the current working position of the electrical stimulation device is used as the output voltage to the paired electrodes so that the electrical stimulation device is in normal output state.

[0208] In a specific implementation scenario, when the current human body impedance is less than or equal to the first impedance value, it indicates that the electrodes are in good contact with the human body. The voltage corresponding to the operating level of the electrostimulation device set by the user is used as the output voltage to the paired electrodes, allowing the user to use the wearable massage device normally.

[0209] As described above, in this embodiment, the output voltage of the paired electrodes is controlled to not exceed the safe voltage based on the current human body impedance. The human body impedance is divided into three areas with different countermeasures. This not only effectively avoids the occurrence of stinging, but also ensures that the user can feel the corresponding electrical stimulation without harming the user. The user will not be unable to feel the electrical stimulation due to improper wearing, which would affect the massage effect.

[0210] In one embodiment, reference Figure 20 The control method for the provided electrical stimulation massage device includes the following steps:

[0211] S731: Determine whether the electrical stimulation massage device is in adjustment mode. If not, proceed to step S732; if yes, proceed to step S735.

[0212] In a specific implementation scenario, an adjustment status parameter is set. When the adjustment status parameter is 0, it indicates that the electrical stimulation massage device is not in adjustment mode; when the adjustment status parameter is 1, it indicates that the electrical stimulation massage device is in adjustment mode. The state of the electrical stimulation massage device can be determined by reading the value of the adjustment status parameter. The initial value of the adjustment status parameter is 0, and it can be subsequently set according to user instructions or the current impedance value. For example, when the current impedance value is greater than a first impedance value, the adjustment status parameter is set to 1; when the current impedance value is less than or equal to the first impedance value, the adjustment status parameter is set to 0.

[0213] S732: Determine whether the current impedance value is less than or equal to the first impedance value. If yes, proceed to step S733; otherwise, proceed to step S734.

[0214] S733: The voltage of the current operating setting of the electrical stimulation device is used as the output voltage to supply the paired electrodes so that the electrical stimulation device is in normal output state.

[0215] In a specific implementation scenario, step S733 is basically the same as step S7223 in the second embodiment of the control method of the electrostimulation massage device provided by the present invention, and will not be described again here.

[0216] S734: Puts the electrical stimulation massage device into adjustment mode.

[0217] S735: Determine whether the current impedance value is greater than or equal to the second impedance value. If yes, proceed to step S736; otherwise, proceed to step S737.

[0218] S736: Obtain a safe voltage and output the safe voltage as the output voltage to the paired electrodes so that the electrical stimulation device is in a safe voltage output state.

[0219] In a specific implementation scenario, step S736 is basically the same as step S7222 in the second embodiment of the control method of the electrostimulation massage device provided by the present invention, and will not be described again here.

[0220] S737: Obtain dynamic voltage based on the current impedance value and the preset mapping relationship, and output the dynamic voltage as the output voltage to the paired electrodes. The dynamic voltage is less than the voltage of the current working position of the electrical stimulation device, so that the electrical stimulation device is in the dynamic voltage output state.

[0221] In a specific implementation scenario, step S737 is basically the same as step S7221 in the second embodiment of the control method of the electrostimulation massage device provided by the present invention, and will not be described again here.

[0222] S738: Determine whether the current impedance value is less than or equal to the first impedance value for a preset number of consecutive times. If so, proceed to step S739.

[0223] S739: Remove the electrical stimulation massage device from the adjustment state.

[0224] In a specific implementation scenario, if the current impedance value is less than or equal to the first impedance value for a preset number of consecutive times (e.g., 3 times), it can be determined that the wearable device is currently in a normal wearing state, does not need to reduce the output voltage, and can be used normally. Therefore, it exits the adjustment state. In this way, when the current impedance value is obtained again, it can be directly judged whether it is less than the first impedance value without comparing it with the second impedance value, which makes the calculation speed faster and improves the processing efficiency.

[0225] S7310:2 controls the output voltage to gradually recover to the voltage level of the current operating setting of the electrical stimulation device within a preset time.

[0226] In a specific implementation scenario, after the electrical stimulation massage device exits the adjustment state, the output voltage needs to be restored to the voltage of the working level set by the user. To avoid sudden changes in output voltage that the user cannot adapt to, in this implementation scenario, the voltage is restored incrementally over a preset time period. For example, it can be increased in a step-like manner, with the output voltage increased by a certain amount every preset time interval (e.g., 100ms). The voltage increase can be equal or unequal each time (including both increasing and decreasing).

[0227] In other implementation scenarios, if the current impedance value is not less than or equal to the first impedance value for a preset number of consecutive times, for example, if the current impedance value is always greater than the first impedance value, or the number of times it is less than the first impedance value is less than the preset number of times, then it will continue to be in the adjustment state.

[0228] As can be seen from the above description, in this embodiment, it is possible to determine whether the electrical stimulation massage device is in an adjustment state, thereby effectively reducing the number of comparisons required. If yes, it is only necessary to compare with the second impedance value; if no, it is only necessary to compare with the first impedance value, which can effectively reduce the comparison time.

[0229] like Figures 21 to 25 As shown, the present invention provides a preferred embodiment of a control method for an electrical stimulation massage device.

[0230] A method for controlling an electrical stimulation massage device, comprising the following steps:

[0231] S8100: When the electrode 301 is in contact with human skin and outputs an electrical stimulation pulse signal, monitor the impedance value between the paired electrodes 301.

[0232] S8220. If the impedance value is in the first impedance value region, when the impedance value is detected to decrease, the voltage output of the counter electrode 301 is reduced.

[0233] S8230: If the impedance value is in the second impedance value region, when the impedance value is detected to increase, the voltage output of the counter electrode 301 is reduced.

[0234] The maximum value in the first impedance region is less than or equal to the minimum value in the second impedance region. The electrical stimulation massage device is a wearable electrical stimulation massager such as a neck massager, waist massager, or leg massager.

[0235] In this embodiment, the electrical stimulation massage device adjusts the voltage corresponding to the output electrical stimulation pulse signal by controlling the input voltage value. The electrode 301 is used to adhere to the human skin of the area to be massaged and outputs an electrical stimulation pulse signal, generating an electrical stimulation effect at the human skin where the electrode 301 is attached, thus forming a massage.

[0236] In step S8100, when the electrode 301 is attached to the human skin and outputs an electrical stimulation pulse signal, the relevant electrical parameters of the electrical stimulation pulse signal are obtained through the relevant detection circuit, including the current value after flowing through the human skin, the voltage value of the electrical stimulation pulse signal, the error value generated by the circuit of the electrical stimulation massage device and / or the resistance value generated by the components and wires, so as to calculate the impedance value generated during the process of the electrode 301 being attached to the human skin, and it is necessary to detect the impedance value between the set electrodes 301 in real time for subsequent related operations.

[0237] Among them, and refer to Figure 22 The step of monitoring the impedance value between the paired electrodes 301 includes:

[0238] S8111: Obtain the current value corresponding to the electrical stimulation pulse signal, and obtain the total impedance value of electrode 301 based on the current value;

[0239] S8112. Use the total impedance value as the impedance value;

[0240] S8113. The total impedance value is obtained by subtracting the internal resistance of the internal components.

[0241] In step S8111, the current value corresponding to the electrical stimulation pulse signal is obtained by connecting a sampling resistor in series after the signal flows through the human skin. That is, the real-time current flowing through the sampling resistor is calculated by detecting the real-time voltage of the sampling resistor. Since the voltage value of the electrical stimulation pulse signal, i.e., the voltage output of electrode 301, is known, the total impedance value of electrode 301 is obtained based on the current value and the voltage output. There are two ways to judge the impedance value between the paired electrodes 301 using the total impedance value. The first is step S8112, where the total impedance value is used as the impedance value. The second is step S8113, where the total impedance value is used as the impedance value after deducting the internal resistance value of the internal components. The internal resistance value of the internal components refers to the resistance value of the sampling resistor, but it can also be the resistance value of other components or wires, or it can be a preset resistance value obtained theoretically.

[0242] In steps S8220 and S8230, there is a judgment step, namely step S8210, between steps S8100 and S8220. In step S8210, based on the impedance value monitored in step S8100, a judgment is made to determine whether the impedance value is within the first impedance value region and the second impedance value region. If the impedance value is within the first impedance value region, proceed to step S8220; if the impedance value is within the second impedance value region, proceed to step S8230. The first and second impedance value regions are preset to reflect that the impedance value is in a region prone to causing stinging. The output voltage of electrode 301 needs to be modified according to the impedance value change, thereby adjusting the current of the output electrical stimulation pulse signal of the pulse modulation circuit 100, so that the human skin is not subjected to strong electrical stimulation during massage, achieving a painless massage.

[0243] Furthermore, when the impedance value is in the first impedance value region, the impedance value is continuously detected, and when the impedance value decreases, the voltage output of electrode 301 is also reduced. Similarly, when the impedance value is in the second impedance value region, the impedance value is continuously detected, and when the impedance value increases, the voltage output of electrode 301 is also reduced.

[0244] If the impedance value is in the first impedance value range, it indicates that the skin and electrode 301 are in good contact. If the output voltage remains unchanged, and the impedance changes abruptly due to sweating or other reasons, the massage intensity will also change abruptly, easily becoming suddenly weak or suddenly strong. The current passing through the skin tissue exceeds the tolerance limit, resulting in discomfort such as muscle spasms. Therefore, in this case, when the impedance value is further reduced, the output voltage needs to be reduced so that the user can experience pulse therapy under a safe and comfortable electrical stimulation pulse signal voltage.

[0245] If the impedance value is in the second impedance value range, it indicates that the skin and electrode 301 are not in good contact, or the skin is dry. The higher the impedance value, the worse the contact of electrode 301. In this range, while ensuring the massage intensity, it is also necessary to pay attention to the output voltage not being too high, which may cause local skin stinging. Therefore, in this case, if the impedance value increases further, the output voltage needs to be reduced to prevent stinging.

[0246] In this way, intelligent control and adjustment of the massage device can be achieved through the above controls.

[0247] In one embodiment, the maximum value of the first impedance region is less than or equal to the minimum value of the second impedance region. Firstly, the first and second impedance regions precisely address two areas where the fit changes slowly; they can be adjacent areas, in which case the maximum value of the first impedance region equals the minimum value of the second impedance region. Secondly, there should be a safety zone between the two areas, allowing the user to enjoy massage techniques at different voltage levels within this safety zone; therefore, the maximum value of the first impedance region is less than the minimum value of the second impedance region.

[0248] like Figure 23 and Figure 24 As shown, the present invention provides a preferred embodiment of the association between voltage output and current gear.

[0249] The control method also includes the following steps:

[0250] S8221. When the impedance value is in the first impedance value region, the voltage output of electrode 301 is less than the voltage output corresponding to the current gear.

[0251] S8231. When the impedance value is in the second impedance value region, the voltage output of electrode 301 is less than the voltage output corresponding to the current gear.

[0252] In this embodiment, the impedance value is within a safe value or range and can be output according to the voltage of the current setting. The massage setting is a preset voltage setting to meet the different needs of different users for massage intensity. Since the first impedance value region and the second impedance value region deal with two regions where the fit changes slowly, directly using the voltage output of the current setting as described above can easily have adverse effects. Therefore, when the impedance value is in the first impedance value region and the second impedance value region, the voltage output of electrode 301 needs to be less than the voltage output corresponding to the current setting.

[0253] In one embodiment, a third impedance value region is also provided. If the impedance value is within the third impedance value region, the electrode 301 outputs the voltage corresponding to the current setting. The third impedance value region is located between the first impedance value region and the second impedance value region. The third impedance value region can be considered a safe region. When the impedance value is detected to be within the third impedance value region, it indicates that the skin and electrode 301 are in normal contact. At this time, no voltage adjustment is required; it is only necessary to meet the voltage of the user's desired setting. The voltage of the electrical stimulation pulse signal is in a stable phase, and there will be no sudden change in current, or the current being too small to be effective, or too large to cause stinging.

[0254] Furthermore, in the third resistance zone, the impedance value will gradually change depending on the user's wearing habits or skin condition. For example, after prolonged wear, the impedance value will gradually decrease, slowly approaching or even entering the first resistance zone; conversely, improper or non-standard wearing will cause it to approach or even enter the second resistance zone. Therefore, the specific control methods are as follows:

[0255] S8241. When the impedance value is detected to change from the first resistance value region or the second resistance value region to the third resistance value region, the voltage output of the counter electrode 301 is controlled to gradually recover to the voltage output corresponding to the current position.

[0256] S8242. When the impedance value is detected to change from the third resistance value region to the first resistance value region or the second resistance value region, the voltage output of the counter electrode 301 is controlled by performing a voltage reduction process according to the voltage output corresponding to the current gear position.

[0257] Firstly, the first and second impedance value regions precisely address two areas where the fit changes slowly. Before entering the first and second impedance value regions, the device should be in the third impedance value region. Due to the continuous change in impedance value, it will gradually enter the first or second impedance value region over time or depending on the user's wearing condition. In the third impedance value region, the output voltage is determined by the current setting, ensuring that the user can experience the massage techniques offered by different settings. Therefore, when the impedance value changes from the first or second impedance value region to the third impedance value region, the voltage output of electrode 301 gradually returns to the voltage output corresponding to the current setting, reverting to determining the output voltage based on the current setting. To ensure a stable massage intensity and maintain the user's preferred massage intensity, the massage intensity should not be adjusted drastically. Therefore, when the impedance value changes from the third impedance value region to the first or second impedance value region, the current setting is first obtained, and the voltage is adjusted based on the output voltage of the current setting.

[0258] In one embodiment, if the impedance value is within a first impedance value region, when an increase in impedance value is detected, the voltage output to electrode 301 is increased. Throughout the entire first impedance value region, the voltage output to electrode 301 changes as the impedance value changes, specifically as follows:

[0259] If the impedance value is within the first impedance value region, the voltage output of electrode 301 conforms to the formula.

[0260] Where, a1+b1=V12; V11 is the voltage output value of electrode 301 when the impedance value is in the first impedance value region; V12 is the voltage value of the current gear; a1 is the safe voltage value; R1 is the impedance value when it is in the first impedance value region; X21 is the minimum value of the third impedance value region; k1 is the adjustment coefficient.

[0261] This formula indicates that the voltage output of electrode 301 is first set to a safe voltage value to ensure that electrode 301 can still output voltage even under extreme conditions, avoiding sound output when there is no output, which would reduce the user experience. At the same time, the voltage output of electrode 301 will change positively with the change of impedance value. The specific change depends on three points: First, the current impedance value and the minimum value of the third impedance value region form a decreasing coefficient, which is the change trend compared with the normal wearing state during the wearing process. Second, an adjustment coefficient is set. Depending on the different materials, sizes, and shapes of electrode 301, and even due to the different pressure levels caused by the type of massager, there will be different optimal change trends. Based on a recognized standard electrostimulation massage device, the adjustment coefficient k1 is set to 1. Other electrostimulation massage devices adjust the adjustment coefficient k1 according to comparative tests or user feedback to alleviate or aggravate the change trend. Third, an adjustable voltage value is set, where a1 + b1 = V12, that is, the two limits of the adjustment range are the safe voltage value a1 and the maximum output value V12, which is the voltage of the current level. The safe voltage value a1 is 8V-16V.

[0262] In one embodiment, if the impedance value is within the second impedance value region, when a decrease in impedance value is detected, the voltage output to electrode 301 is increased. Throughout the entire second impedance value region, the voltage output to electrode 301 also changes as the impedance value changes, specifically as follows:

[0263] If the impedance value is in the second impedance value region, the voltage output of electrode 301 conforms to the formula.

[0264] Where, a2+b2=V22; V21 is the voltage value of the output electrical stimulation pulse signal when the impedance value is in the second impedance value region; V22 is the voltage value of the current gear; a2 is the safe voltage value; R2 is the impedance value when it is in the second impedance value region; X22 is the maximum value of the third impedance value region; k2 is the adjustment coefficient.

[0265] The principle of the above formula is similar to that of the formula for the first impedance value region. It also sets a safe voltage value, and the voltage output of electrode 301 changes in the opposite direction as the impedance value changes. The specific change depends on three points. The principles of b2 and k2 are the same as before, the main difference being that it is a reverse adjustment. That is, the maximum value of the third impedance value region and the current impedance value form a decreasing coefficient, representing the trend of change during wearing compared to the normal wearing state. The safe voltage value a2 is 8V-16V.

[0266] like Figure 24 and Figure 25 As shown, the present invention provides preferred embodiments of a fourth impedance value region and a fifth impedance value region.

[0267] The steps of the control method include:

[0268] S8300: When the impedance value is lower than the lowest impedance value in the first impedance value region, it enters the fourth impedance value region; at this time, according to the current gear position and the preset correspondence, the voltage output of the counter electrode 301 is determined to be the corresponding fixed voltage value.

[0269] S8400 When the impedance value is higher than the highest impedance value in the second impedance value region, it enters the fifth impedance value region; at this time, the voltage output of the counter electrode 301 is determined to be a preset safe voltage value.

[0270] In step S8300 of this embodiment, the impedance value is in the fourth impedance value region, indicating that the skin fit is very good. If the output voltage is not limited at this time, the human body will be subjected to a large current, which may easily cause discomfort. In this state, the electrical stimulation massage device will output a lower value corresponding to the current level to ensure the user's comfortable experience. The aforementioned lower value should be obtained through preset settings. Different levels and the voltage output of electrode 301 are associated with corresponding data. Based on the current level and the preset correspondence, the voltage output of electrode 301 is determined to be the corresponding fixed voltage value.

[0271] Another adjustment method is also provided, which sets the voltage level to an adjustable level and a non-adjustable level. The specific steps are as follows:

[0272] S8311. Obtain the current voltage level. When the voltage level is the adjustment level, adjust the first fixed voltage value of the electrical stimulation pulse signal according to the current voltage level.

[0273] S8312. When the voltage setting is a non-adjustable setting, adjust the voltage value of the electrical stimulation pulse signal to the second fixed voltage value.

[0274] Each adjustment level corresponds to a first fixed voltage value, and the value of the first fixed voltage value is lower than the voltage value of the voltage level.

[0275] Specifically, since the voltage values ​​corresponding to low voltage adjustment levels have little impact on the human body, some low voltage adjustment levels can be used without voltage adjustment, directly outputting the current voltage level, i.e., the second fixed voltage value, as a non-adjustable level. However, some high voltage adjustment levels, when the impedance value is very low, can easily cause stinging or uncomfortable massage. Therefore, these high voltage adjustment levels must be adjusted to a relatively small range as adjustment levels.

[0276] Furthermore, the first fixed voltage value corresponding to each adjustment level needs to be preset. After entering the fourth impedance value region, the voltage output by electrode 301 is directly adjusted to the corresponding first fixed voltage value. The adjustment process can be carried out slowly so that the user will not feel a sudden drop in voltage. Among them, the voltage range of 8V-16V can be considered as a non-adjustable level, and the maximum value of the first fixed voltage value corresponding to the adjustable level should also be within the range of 8V-16V.

[0277] In step S8400 of this embodiment, the impedance value is in the fifth impedance value region, which means that the fit of electrode 301 and the dryness of the skin are starting to deteriorate. At this time, it is no longer suitable to perform pulse output. When the voltage is too high, the current will flow through the skin that is only in contact with a small amount, resulting in a stinging experience. In this state, it is recommended that electrode 301 output a safe rated low voltage to ensure that the user will not experience stinging.

[0278] Preferably, the safe rated low voltage can be selected when the voltage value of the output voltage of electrode 301 is at its lowest in the second impedance value region. In this case, the voltage value output to electrode 301 is determined to be a preset safe voltage value, that is, the preset safe voltage value can be a2. Of course, another preset safe voltage value can also be selected, which is less than a2. The preset safe voltage value is 8V-16V.

[0279] The present invention also provides an electrostimulation massage device, which includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the processor implements the aforementioned gear adjustment method.

[0280] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the gear adjustment method described above.

[0281] The above description is merely the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. All equivalent changes or modifications made in accordance with the claims of the present invention are covered by the present invention.

Claims

1. A control method for an electrical stimulation massage device, characterized in that, The electric stimulation massage device includes a pair of electrodes, a pulse modulation circuit connected to the electrodes, and a second detection circuit connected to the pulse modulation circuit. The electrodes are used to attach to the massage area to be massaged. The pulse modulation circuit is used to generate an electric stimulation pulse signal and output it to the massage area to be massaged through the electrodes; The steps of the control method include: Controlling the pulse modulation circuit to generate an electric stimulation pulse signal; Controlling the second detection circuit to periodically sample the electric stimulation pulse signal to obtain sampling data; Periodically obtaining the impedance value between the pair of electrodes according to the sampling data; Adjusting the input voltage to the pulse modulation circuit according to the impedance value to detect impedance abnormality within the time A required for the user to perceive electric tingling and make a response; where The sampling period T for sampling the electric stimulation pulse signal satisfies the first model, and the first model is T + t < A; the t is the preset reaction lag time of the electric stimulation massage device, and the A is the preset time required for the user to perceive electric tingling.

2. The control method according to claim 1, characterized in that, The ratio of the sampling period T to the period T1 of the electric stimulation pulse signal is S, and S is an integer greater than or equal to 1 and less than or equal to (A - t) / T1.

3. The control method according to claim 1, characterized in that, The step of periodically sampling the electric stimulation pulse signal includes: during one sampling period T, when sampling the electric stimulation pulse signal, sampling multiple times within a preset time.

4. The control method according to claim 3, characterized in that, The sampling period T is equal to S times the period T1 of the electric stimulation pulse signal, and S is an integer greater than or equal to 2 and less than or equal to (A - t) / T1; The step of sampling multiple times within a preset time includes: sampling each of the S high levels once to obtain multiple sampling data.

5. The control method according to claim 3, characterized in that, The sampling period T is equal to the period T1 of the electric stimulation pulse signal, and the step of sampling multiple times within a preset time includes: sampling one high level multiple times to obtain multiple sampling data.

6. The control method according to any one of claims 1 to 5, characterized in that, The step of controlling the second detection circuit to periodically sample the electric stimulation pulse signal includes: After controlling the pulse modulation circuit to generate an electric stimulation pulse signal, timing is performed; When the timing time reaches the start time, the electric stimulation pulse signal is sampled.

7. The control method according to any one of claims 1 to 5, characterized in that: The t includes the time t1 for obtaining the impedance value between the pair of electrodes according to the sampling data and / or the time t2 for adjusting the input voltage to the pulse modulation circuit according to the impedance value.

8. The control method according to claim 1, characterized in that, Before the step of controlling the pulse modulation circuit to generate an electric stimulation pulse signal, the steps of the control method further include: Obtaining the massage level and / or massage mode; Determining the A according to the massage level and / or massage mode; 9. The control method according to claim 8, characterized in that, The step of determining the A according to the massage level and / or massage mode includes: Determining the gear range to which it belongs according to the massage level, and determining the A according to the gear range; or, Determining the mode type to which it belongs according to the massage mode, and determining the A according to the mode type; or, Determining the gear range to which it belongs according to the massage level, determining the mode type to which it belongs according to the massage mode, and determining the A according to the gear range and the mode type.

10. The control method according to claim 1, characterized in that, The steps of the control method further include: When the sampling period T for periodically sampling the electrical stimulation pulse signal does not satisfy the first model; Reduce the input voltage to a safe voltage; Alternatively, the frequency of the electrical stimulation pulse signal generation can be adjusted to adjust the sampling period T.

11. The control method according to claim 1, characterized in that, The second detection circuit includes a sampling resistor connected in series between the pulse modulation circuit and ground. In the step of acquiring the sampling data, the sampling data is the sampling voltage of the sampling resistor. In the step of periodically obtaining the impedance value between the paired electrodes based on the sampling data, the method of obtaining the impedance value between the paired electrodes based on the sampling data is to obtain the impedance value between the paired electrodes based on the sampling voltage, the resistance value of the sampling resistor and the input voltage.

12. The control method according to claim 11, characterized in that, The step of periodically obtaining the impedance value between paired electrodes based on the sampled data includes: Obtain the input voltage of the pulse modulation circuit; The second detection circuit periodically samples the voltage of the sampling resistor to obtain multiple sampling voltages as sampling data. The current value of the electrical stimulation pulse signal is obtained based on the sampling voltage and the resistance value of the sampling resistor; The impedance value between the paired electrodes can be obtained based on the input voltage and current values; or, the total resistance value can be obtained based on the input voltage and current values, and the impedance value between the paired electrodes can be obtained based on the total resistance value and the resistance value of the sampling resistor; or, an error margin resistance value can be set, the total resistance value can be obtained based on the input voltage and current values, and the impedance value between the paired electrodes can be obtained based on the total resistance value, the error margin resistance value, and the resistance value of the sampling resistor.

13. The control method according to claim 11, characterized in that, The electrical stimulation massage device also includes: Power supply and control unit; A boost unit is connected to a power supply. The boost unit boosts the input voltage of the power supply to a preset voltage and outputs it to the outside through the voltage output terminal of the boost unit. A pulse modulation circuit, wherein the power input terminal of the pulse modulation circuit is connected to the voltage output terminal of the boost unit, the first pulse transmission terminal and the second pulse transmission terminal of the pulse modulation circuit are respectively connected to an electrode, and the control terminal of the pulse modulation circuit is connected to the control unit. A first detection circuit is connected to the voltage output terminals of both the control unit and the boost unit. The control unit obtains the output voltage of the boost unit through the first detection circuit. The control unit obtains the impedance value between the paired electrodes based on the output voltage of the boost unit, the resistance value of the sampling resistor, and the sampling voltage.

14. The control method according to claim 13, characterized in that, The boost unit is connected to the control unit and the power supply respectively. Under the control of the control unit, the boost unit boosts the input voltage of the power supply to a preset voltage. The step of adjusting the input voltage to the pulse modulation circuit according to the impedance value includes: The preset voltage after boosting by the boost unit is adjusted according to the impedance value, so as to be output to the pulse modulation circuit as the input voltage.

15. The control method according to claim 14, characterized in that, The boost unit includes a power input terminal connected to the power supply, a boost circuit, an energy storage circuit, a voltage relief circuit, and a voltage output terminal connected to the pulse modulation circuit. The input terminal of the boost circuit is connected to the power input terminal, and the control terminal of the boost circuit is connected to the control unit. The input terminal of the energy storage circuit is connected to the output terminal of the boost circuit, and the output terminal of the energy storage circuit is connected to the voltage output terminal. The control terminal of the voltage relief circuit is connected to the control unit, and the input terminal of the voltage relief circuit is connected to the voltage output terminal. The step of adjusting the preset voltage after boosting by the boost unit according to the impedance value includes: The voltage boost circuit and / or the energy storage circuit are controlled to boost voltage and / or reduce voltage based on the preset voltage and the impedance value between the paired electrodes, so as to control the voltage output terminal to output the preset voltage to the pulse modulation circuit.

16. The control method according to claim 1, characterized in that, The step of adjusting the input voltage to the pulse modulation circuit according to the impedance value includes: Determine the preset voltage based on the impedance value; According to the preset voltage, the input voltage to the pulse modulation circuit is adjusted so that the input voltage reaches the preset voltage value.

17. The control method according to claim 16, characterized in that, The step of determining the preset voltage based on the impedance value includes: setting a first impedance value and a second impedance value, wherein the first impedance value and the second impedance value are used to characterize the contact state of the electrode, and the first impedance value is less than the second impedance value; when the impedance value is greater than the first impedance value and less than the second impedance value, obtaining a dynamic voltage according to the impedance value and a preset mapping relationship, and using the dynamic voltage as the preset voltage, wherein the dynamic voltage is less than the voltage of the current working level of the electrostimulation massage device, so that the electrostimulation massage device is in a dynamic voltage output state.

18. The control method according to claim 17, characterized in that, The step of determining the preset voltage based on the impedance value includes: when the impedance value is greater than or equal to the second impedance value, obtaining a safe voltage, and using the safe voltage as the preset voltage so that the electrical stimulation massage device is in a safe voltage output state.

19. The control method according to claim 17, characterized in that, The step of determining the preset voltage based on the impedance value further includes: when the impedance value is less than or equal to the first impedance value, using the voltage of the current working level of the electrical stimulation massage device as the preset voltage, so that the electrical stimulation massage device is in a normal output state.

20. The control method according to claim 17, characterized in that, The preset mapping relationship satisfies the following condition: the smaller the difference between the impedance value and the first impedance value, the smaller the difference between the dynamic voltage and the gear voltage.

21. The control method according to claim 20, characterized in that, The step of obtaining dynamic voltage based on impedance value and preset mapping relationship also includes: in, The dynamic voltage, Let R1 be the first impedance value and R2 be the second impedance value. This is a safe voltage.

22. The control method according to claim 13, characterized in that, The step of adjusting the input voltage to the pulse modulation circuit based on the impedance value includes: determining a target voltage based on the impedance value; obtaining the difference between the impedance value and the previously obtained impedance value; if the difference is greater than or equal to a preset difference threshold, then determining the preset voltage as a safe voltage; adjusting the input voltage to the pulse modulation circuit based on the preset voltage, and reducing the output voltage corresponding to the previously detected impedance value to the safe voltage in a decreasing manner within a preset time.

23. An electrostimulation massage device, characterized in that, The electrostimulation massage device includes a memory and a processor. The memory stores a computer program, which, when executed by the processor, causes the processor to implement the control method as described in any one of claims 1 to 22.

24. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the control method as described in any one of claims 1 to 22.

Images