Electro-acupuncture massage bracelet with positioning function

Abstract

The invention belongs to the technical field of intelligent bracelets, and particularly relates to an electroacupuncture massage bracelet with a positioning function. Comprising a bracelet body, a control module, an electric acupuncture massage module and a positioning module, the electric acupuncture massage module is arranged in one side of the bracelet and comprises an electrode plate, a battery and a driving circuit, and acupuncture points are stimulated by releasing low-degree current; the positioning module can accurately capture the three-dimensional motion trail and the acupoint position of the wrist and send data to the mobile phone APP through Bluetooth or Wi-Fi. The positioning module uses a sensor and an intelligent algorithm to identify the accurate shape and the acupoint position of the wrist of the user, it is ensured that the target acupoint can be accurately stimulated in each time of treatment, the treatment effect is improved, and during first-time use, the personalized acupoint distribution diagram of the user is automatically recorded and learned through an automatic calibration process, so that the user experience is improved. During subsequent use, the position of the electrode plate is automatically adjusted, and accurate stimulation is ensured.

Description

Technical Field

[0001] The invention belongs to the technical field of smart bracelets, and in particular relates to an electric acupuncture massage bracelet with a positioning function. Background Art

[0002] In the current health technology field, electrical stimulation bracelets, as a non-invasive treatment method, have been gradually accepted by the market and widely used to relieve muscle pain, promote blood circulation and assist in the treatment of certain neurological diseases. Most of the existing electrical stimulation bracelet products use preset programs to release low-frequency microcurrents to the user's wrist or specific acupoints through the electrodes on the bracelet to simulate the effect of traditional acupuncture. However, these products have several shortcomings in practical applications: traditional electrical stimulation bracelets can only roughly cover the wrist area and cannot accurately align with specific acupoints or treatment points, which affects the treatment effect; they cannot be automatically adjusted according to individual differences of users (such as wrist size, acupoint location differences), resulting in different treatment effects for different people, and users need to manually select or adjust the stimulation mode, which is inconvenient for elderly people who are not familiar with electronic devices or users with poor eyesight; and the matching of current intensity and skin sensitivity is not fully considered, which may cause discomfort or even safety hazards. Therefore, the present invention provides an electric acupuncture massage bracelet with positioning function, which realizes accurate positioning, personalized treatment and intelligent operation, and improves treatment effect and user experience. Summary of the invention

[0003] The invention provides an electric acupuncture massage bracelet with a positioning function, which is used to solve the technical problems of inaccurate positioning, insufficient personalization, complex operation and potential safety hazards of traditional electric acupuncture massage bracelets.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an electroacupuncture massage bracelet with a positioning function, comprising a bracelet body, a control module, an electroacupuncture massage module and a positioning module. The electroacupuncture massage module is built into one side of the bracelet, comprising an electrode sheet, a battery and a driving circuit, and stimulates acupoints by releasing low-level current; the positioning module can accurately capture the three-dimensional motion trajectory and acupoint position of the wrist, and send the data to a mobile phone APP via Bluetooth or Wi-Fi.

[0005] Furthermore, when the bracelet body is used for the first time, the control module automatically records and learns the user's personalized acupoint distribution map through an automatic calibration process, and automatically adjusts the position of the electrode sheet during subsequent use to ensure accurate stimulation.

[0006] Furthermore, the electroacupuncture massage module evaluates the safety status during the treatment process by monitoring the user's skin reaction to the electric current. When the skin resistance changes, the electroacupuncture massage module adjusts the current intensity to avoid damage to the skin.

[0007] Furthermore, the positioning module uses sensors and intelligent algorithms to identify the precise shape and acupuncture point locations of the user's wrist.

[0008] Furthermore, the sensor adopts a gyroscope and an accelerometer, and the intelligent algorithm is an improved Kalbo filter algorithm.

[0009] Furthermore, the improved Kalpo filter undergoes an updating process, uses a state equation to calculate the state of the next time step, and uses new sensor data to update the state value.

[0010] Furthermore, the automatic calibration process is that the user wears the bracelet on the wrist and selects the "Start Calibration" option through the mobile phone APP. The bracelet will then issue a prompt sound to guide the user to perform wrist movements so that the sensor can comprehensively collect wrist shape data. After the data collection is completed, the control module automatically analyzes and processes the wrist shape data, constructs the user's personalized wrist model and acupoint distribution map, and stores it in the bracelet body for subsequent use.

[0011] Furthermore, the process of automatically adjusting the position of the electrode sheet is as follows: encoding the acupoint position signal as a positive pulse signal, when the switch is enabled, inputting a positive pulse to drive the electrode sheet to perform fine adjustment to ensure that they can accurately cover the key acupoints on the user's wrist, and outputting the position difference as a negative pulse.

[0012] Furthermore, based on the automatic calibration process, the control module can also provide personalized treatment plans, that is, intelligently generate and start corresponding treatment plans. During the treatment process, it continuously monitors the user's skin resistance changes and treatment effect feedback, and adjusts the current intensity parameters in real time to ensure the safety and effectiveness of the treatment.

[0013] Furthermore, in addition to automatically adjusting the current intensity, the control module is also equipped with an emergency stop function. Once the user feels uncomfortable during treatment or needs to stop the treatment immediately, just long press the "Start / Stop" button to trigger the function.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] (1) The positioning module of the present invention uses sensors and intelligent algorithms to identify the precise shape of the user's wrist and the location of the acupoints, ensuring that each treatment can accurately stimulate the target acupoints and improve the treatment effect.

[0016] (2) The present invention provides customized treatment plans based on individual differences of users. During the treatment process, it continuously monitors the user's skin resistance changes and treatment effect feedback, and adjusts the current intensity parameters in real time to ensure the safety and effectiveness of the treatment, thereby meeting the needs of different users and improving user satisfaction.

[0017] (3) When the present invention is used for the first time, it automatically records and learns the user's personalized acupoint distribution map through an automatic calibration process, and automatically adjusts the position of the electrode sheet during subsequent use to ensure accurate stimulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of the electric acupuncture massage bracelet of the present invention;

[0019] Figure 2 This is the circuit diagram of the electric acupuncture massage module of the present invention. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0021] By the attached Figure 1 As shown, an electroacupuncture massage bracelet with a positioning function includes a bracelet body, a control module, an electroacupuncture massage module and a positioning module. The electroacupuncture massage module is built into one side of the bracelet, and includes an electrode sheet, a battery and a driving circuit, and stimulates acupoints by releasing low-level current; the positioning module can accurately capture the three-dimensional movement trajectory and acupoint position of the wrist, and send the data to a mobile phone APP via Bluetooth or Wi-Fi.

[0022] Positioning module: The wristband has built-in sensors, such as gyroscopes, accelerometers and intelligent algorithms, which can identify the precise shape of the user's wrist and the location of acupuncture points. The sensors and intelligent algorithms are used to identify the precise shape of the user's wrist and the location of acupuncture points. The sensors use gyroscopes and accelerometers, and the intelligent algorithm is an improved Kalbo filter algorithm.

[0023] Gyroscope data: Usually expressed in angular velocity (rad / s), it can be used directly to calculate the rotation angle of the wrist.

[0024] Accelerometer data: usually expressed in acceleration (m / s 2 ) and needs to be converted into the component of gravitational acceleration (g) for gesture recognition.

[0025] The improved Kalpo filter goes through an update process, uses the state equation to calculate the state of the next time step, and uses the new sensor data to update the state value. The specific equation is as follows:

[0026] Equation of state:

[0027] x k =Ax k-1 +Bμk-1 +ω k-1

[0028] x k is the system state vector at the current moment, including the angular velocity W k , acceleration a k And other information.

[0029] A is the state transition matrix, which describes how the system state transfers from the previous moment to the current moment.

[0030] B is the control input matrix, which affects the system state if the system is subject to external control (acceleration input).

[0031] μ k-1 is the control input vector, such as the acceleration reading from an accelerometer (which may not be needed or may be zero in some cases).

[0032] ω k-1 is the process noise vector, which represents the uncertainty in the process of system state change.

[0033] Observation equation:

[0034] z k =Hx k +v k

[0035] Among them, z k It is the observation vector at the current moment, including the acceleration reading of the accelerometer and the angular velocity reading of the gyroscope.

[0036] H is the observation matrix, which describes the transformation relationship from system state to observation value.

[0037] v k is the observation noise vector, which represents the uncertainty in the sensor measurement process.

[0038] Improved Kalman filter process:

[0039] 1. Before performing the prior state estimation at time k, the following information needs to be initialized: That is, the angular velocity and acceleration values ​​at the initial moment.

[0040] 2. The covariance matrices of system noise interference and measurement noise interference are Q and R

[0041] 3. The covariance matrix of the system error at the initial moment is P 0 .

[0042] 4. Starting from time k=1, estimate the angular velocity W(k) and acceleration value a(k) at each moment.

[0043] 5. Prediction update (Predict):

[0044]

[0045] in, is the prior state estimate at time k, is the a priori estimated covariance at time k.

[0046] 6. Kalman Gain:

[0047]

[0048] Among them, K k is the Kalman gain at time k.

[0049] 7. Status update (Update):

[0050]

[0051] in, is the posterior state estimate (also called the optimal estimate) at time k.

[0052] 8. Update Covariance:

[0053]

[0054] Among them, P k is the posterior estimated covariance at time k.

[0055] 9. Iteration: Update the and P k As the next iteration and P k-1 .

[0056] Control module: When the bracelet is used for the first time, it automatically records and learns the user's personalized acupoint distribution map through an automatic calibration process, and automatically adjusts the position of the electrode sheet during subsequent use to ensure accurate stimulation.

[0057] The automatic calibration process is that the user wears the bracelet on the wrist and selects the "Start Calibration" option through the mobile phone APP. The bracelet will then issue a prompt sound to guide the user to perform wrist movements so that the sensor can fully collect wrist shape data. After the data collection is completed, the control module automatically analyzes and processes the wrist shape data, constructs the user's personalized wrist model and acupoint distribution map, and stores it in the bracelet body for subsequent use.

[0058] In one embodiment of the present invention, the sensor comprehensively collects wrist morphology data, including: obtaining an image sensor in the sensor; using the image sensor to collect a color image of the wrist; and extracting features from the color image using the following formula to obtain extracted features:

[0059]

[0060] I 1 =I 1 (x 1 ,y 1 ,z 1 )

[0061]

[0062] Among them, I 3 represents the extracted features, I 1 (x 1 ,y 1 ,z 1 ) represents the color image I 2 The corresponding Depth image, (x 1 ,y 1 ,z 1 ) represents the three-dimensional coordinates corresponding to the Depth image, (x′, y′) represents the two-dimensional coordinates corresponding to the Depth image, D represents the depth value, and f x represents the partial derivative of focal length in the horizontal direction, fy represents the partial derivative of focal length in the vertical direction, ResNet represents residual neural network, CBMA represents convolutional attention mechanism, and PointNet represents point cloud processing network;

[0063] The following formula is used to identify the pose key points in the extracted features:

[0064] I 4 =FPS(SIFT(I 3 ))

[0065] Among them, I 4 represents the key points of pose, I 3 Indicates feature extraction, SIFT indicates image feature matching algorithm, and FPS indicates point cloud sampling algorithm;

[0066] According to the posture key points, the wrist surface of the wrist is fitted using the following formula:

[0067] Ax+By+Cz+D=0

[0068]

[0069] z=ax+by+c

[0070] Wherein, z=ax+by+c represents the wrist surface, (x, y, z) represents the independent variable of the three-dimensional coordinates of the pose key point, i represents the sequence number of the three-dimensional coordinates of the pose key point, (x i ,y i ,z) represents the three-dimensional coordinates of the pose key points, n represents the number of three-dimensional coordinates of the pose key points, a, b, c, A, B, C, D represent constant parameters;

[0071] The wrist surface is used as wrist shape data.

[0072] In one embodiment of the present invention, the adjusting the position of the electrode sheet includes: obtaining the current acupoint distribution in the acupoint distribution map; obtaining the standard acupoint distribution of the electrode sheet; and calculating the position adjustment accuracy of the electrode sheet according to the current acupoint distribution and the standard acupoint distribution using the following formula:

[0073] E θl (X k ,Y k ,Z k )=(x k ,y k ,z k )

[0074]

[0075] Among them, α represents the position adjustment accuracy, E θl Indicates the operation of rotating the electrode sheet at an angle of θ and moving it in the direction of l, (X k ,Y k ,Z k ) represents the standard acupoint distribution of the kth acupoint, (x k ,y k ,z k ) represents the current acupoint distribution of the kth acupoint, E θl (X k ,Y k ,Z k ) indicates that after the electrode sheet is rotated by an angle of θ and moved in the direction of l (X k ,Y k ,Z k ) changes, E θl (X k′ ,Y k′ ,Z k′ ) indicates that after the electrode sheet is rotated by an angle of θ and moved in the direction of l (X k′ ,Y k′ ,Z k′ ) after the change, (X k′ ,Y k′ ,Z k′) represents the standard acupoint distribution except (X k ,Y k ,Z k ) any acupuncture point outside, (x k′ ,y k′ ,z k′ ) means that the current acupoint distribution is divided by (x k ,y k ,z k ) outside any acupoint position, N means it meets E θl (X k′ ,Y k′ ,Z k′ )-(x k′ ,y k′ ,z k′ )=0 number of acupoints, M means it meets E θl (X k′ ,Y k′ ,Z k′ )-(x k′ ,y k′ ,z k′ )≠0 number of acupoints;

[0076] When the position adjustment accuracy is the maximum accuracy, the electrode sheet is adjusted using the rotation angle and the moving direction corresponding to the position adjustment accuracy to complete the process of adjusting the position of the electrode sheet.

[0077] The standard acupoint distribution refers to the correct version of the acupoint distribution corresponding to the current angle and position of the electrode sheet.

[0078] Based on the automatic calibration process, the control module can also provide personalized treatment plans, that is, intelligently generate and start corresponding treatment plans. During the treatment process, it continuously monitors the user's skin resistance changes and treatment effect feedback, and adjusts the current intensity parameters in real time to ensure the safety and effectiveness of the treatment.

[0079] In addition to automatically adjusting the current intensity, the control module is also equipped with an emergency stop function. Once the user feels uncomfortable during treatment or needs to stop treatment immediately, just long press the "Start / Stop" button to trigger the function.

[0080] Electroacupuncture massage module: Assess safety during treatment by monitoring the user's skin response to electric current. When skin resistance changes, the electroacupuncture massage module adjusts the current intensity to avoid damage to the skin.

[0081] In one embodiment of the present invention, the electric acupuncture massage module adjusts the current intensity, including: obtaining the current skin resistance and the current current intensity corresponding to the current skin resistance; constructing the planned current intensity of the current current intensity in a preset future time period, and analyzing the planned skin resistance of the current skin resistance in the preset future time period according to the planned current intensity using the following formula:

[0082] f t =σ(W f [h t-1 ,X t ]+b f )

[0083] i t =σ(W i [h t-1 ,X t ]+b i )

[0084]

[0085]

[0086] O t =W o [h t-1 ,X t ]+b o

[0087] h t =O t tanh(C t )

[0088] Among them, h t represents the planned skin resistance, W i represents the output i of the input gate t The weight matrix, W c express The weight matrix, b i 、b c represents the bias, f t represents the output of the forget gate at time t, W f represents the weight matrix of the forget gate, b f represents the bias of the forget gate, C t represents the neuron memory of the current layer, h t-1 Indicates the output at the previous moment, X t Indicates the current current intensity at the current moment, W o represents the weight matrix of the output gate, b o represents the bias of the output gate, represents new memory information, σ represents the activation function, C t-1represents the neuron memory of the previous moment, O t Represents the output result of the output gate;

[0089] When the planned skin resistance is less than the preset abnormal skin resistance, the current current intensity is adjusted to the planned current intensity.

[0090] The planned current intensity refers to a current intensity that is set to be different from the current current intensity.

[0091] like Figure 2 As shown in the figure, the process of automatically adjusting the position of the electrode sheet is as follows: the acupoint position signal is encoded and used as a positive pulse signal through I / OP1.2. When the switch is enabled, a positive pulse is input to drive the electrode sheet to make fine adjustments to ensure that they can accurately cover the key acupoints on the user's wrist. The position difference is output as a negative pulse.

[0092] The operation process of the electric acupuncture massage bracelet of the present invention is as follows:

[0093] (1) Preparation stage:

[0094] Make sure the electroacupuncture massage bracelet is worn correctly on your wrist.

[0095] Make sure the user's health data (such as age, gender, height, weight, pain location and degree, etc.) has been entered and saved in the bracelet through the bracelet's accompanying APP or previous usage records.

[0096] Users can select a preset treatment plan template or allow the bracelet to automatically select the best plan based on historical data and current status.

[0097] (2) Initiation of treatment:

[0098] The user checks the wristband body and confirms that the interface is simple, with only the "Start / Stop" button and status indicator light displayed.

[0099] Press the "Start / Stop" button on the bracelet, and the bracelet will respond immediately and start the treatment program.

[0100] (3) Automatic detection and adjustment of control module:

[0101] The built-in sensors in the bracelet start working to detect the user's wrist shape and acupoint location.

[0102] Based on the test results, the bracelet automatically adjusts the position of the electrodes to ensure accurate coverage of key acupoints.

[0103] At the same time, the bracelet intelligently generates and sets the initial treatment parameters (such as stimulation intensity, frequency, waveform, etc.) based on the user's health data or the selected treatment plan template.

[0104] (4) Electroacupuncture and massage treatment process:

[0105] The treatment procedure officially begins and the bracelet starts to output electrical stimulation signals.

[0106] During the treatment, the bracelet continuously monitors changes in the user's skin resistance, which is an important indicator of treatment effectiveness and user comfort.

[0107] Based on the monitoring results, parameters such as current intensity are adjusted in real time to ensure that the treatment process is both safe and effective.

[0108] The status indicator light will display the current treatment status, such as normal treatment, adjustment parameters, etc.

[0109] (5) Feedback and Adjustment:

[0110] If the user feels uncomfortable during treatment or needs to adjust treatment parameters, although the bracelet is designed for one-touch operation, it is generally not recommended to modify the settings directly during treatment to avoid affecting the treatment effect. The user can make fine adjustments through the APP or bracelet settings after the treatment.

[0111] (6) Stopping treatment:

[0112] When the user needs to stop the treatment, just press the "Start / Stop" button on the bracelet again. The bracelet immediately stops outputting electrical stimulation signals and returns to standby mode.

[0113] The present invention can not only achieve precise positioning, personalized treatment and intelligent operation, thereby improving the treatment effect and user experience; it can also ensure the safety and effectiveness of the treatment process to protect the health and safety of the user.

[0114] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.

Claims

1. An electric acupuncture massage bracelet with positioning function, characterized in that: It includes a bracelet body, a control module, an electroacupuncture massage module and a positioning module. The electroacupuncture massage module is built into one side of the bracelet, contains electrodes, batteries and a driving circuit, and stimulates acupoints by releasing low-level current; the positioning module can accurately capture the three-dimensional movement trajectory and acupoint location of the wrist, and send the data to the mobile phone APP via Bluetooth or Wi-Fi.

2. The electric acupuncture massage bracelet with positioning function according to claim 1, characterized in that: When the bracelet body is used for the first time, the control module automatically records and learns the user's personalized acupoint distribution map through an automatic calibration process, and automatically adjusts the position of the electrode sheet during subsequent use to ensure accurate stimulation.

3. The electric acupuncture massage bracelet with positioning function according to claim 1, characterized in that: The electroacupuncture massage module evaluates the safety status during treatment by monitoring the user's skin's response to electric current. When the skin resistance changes, the electroacupuncture massage module adjusts the current intensity to avoid damage to the skin.

4. The electric acupuncture massage bracelet with positioning function according to claim 1, characterized in that: The positioning module uses sensors and intelligent algorithms to identify the exact shape and acupuncture point locations of the user's wrist.

5. The electric acupuncture massage bracelet with positioning function according to claim 4, characterized in that: The sensor adopts a gyroscope and an accelerometer, and the intelligent algorithm is an improved Kalbo filter algorithm.

6. The electric acupuncture massage bracelet with positioning function according to claim 5, characterized in that: The improved Kalpo filter undergoes an updating process, uses a state equation to calculate the state of the next time step, and uses new sensor data to update the state value.

7. The electric acupuncture massage bracelet with positioning function according to claim 2, characterized in that: The automatic calibration process is that the user wears the bracelet on the wrist and selects the "Start Calibration" option through the mobile phone APP. The bracelet will then issue a prompt sound to guide the user to perform wrist movements so that the sensor can fully collect wrist shape data. After the data collection is completed, the control module automatically analyzes and processes the wrist shape data, constructs the user's personalized wrist model and acupoint distribution map, and stores it in the bracelet body for subsequent use.

8. The electric acupuncture massage bracelet with positioning function according to claim 2, characterized in that: The process of automatically adjusting the position of the electrode sheet is as follows: encoding the acupoint position signal as a positive pulse signal, when the switch is enabled, inputting a positive pulse, driving the electrode sheet to make fine adjustments to ensure that they can accurately cover the key acupoints on the user's wrist, and outputting the position difference as a negative pulse.

9. The electric acupuncture massage bracelet with positioning function according to claim 7, characterized in that: Based on the automatic calibration process, the control module can also provide personalized treatment plans, that is, intelligently generate and start corresponding treatment plans. During the treatment process, it continuously monitors the user's skin resistance changes and treatment effect feedback, and adjusts the current intensity parameters in real time to ensure the safety and effectiveness of the treatment.

10. The electric acupuncture massage bracelet with positioning function according to claim 1, characterized in that: In addition to automatically adjusting the current intensity, the control module is also equipped with an emergency stop function. Once the user feels uncomfortable during treatment or needs to stop treatment immediately, just long press the "Start / Stop" button to trigger the function.

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