Fat melting method and system capable of keeping consistent energy and storage medium
By constructing a dynamic three-dimensional surface model in real time and correcting laser parameters, the problem of uneven energy distribution in laser projection due to skin movement and geometric changes was solved, achieving energy consistency and safety in the fat melting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHENZHEN QIAOFU INTELLIGENT EQUIPMENT CO LTD
- Filing Date
- 2025-12-31
- Publication Date
- 2026-05-12
AI Technical Summary
In existing fat reduction technologies, laser projection is easily affected by skin movement and changes in body surface geometry, resulting in uneven energy distribution in the fat reduction area, which affects the fat reduction effect and increases the risk of skin burns, failing to meet the needs for precise and safe fat reduction.
The relative motion and point cloud data between the laser projection end and the body surface are collected in real time by an inertial measurement unit and a depth sensing unit. A dynamic three-dimensional surface model is constructed, and laser irradiation parameters, including skin surface curvature, laser incident angle and projection distance, are corrected in real time. The fat melting safety indicators are monitored to ensure energy consistency and safety.
It achieves precise adjustment of laser energy under skin movement and geometric changes, solves the problem of uneven energy, and improves the safety and effectiveness of the fat reduction process.
Smart Images
Figure CN122005076A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of non-invasive human tissue heating / fat reduction technology, belonging to the optical and control technology of medical / home beauty devices, and more specifically, to a fat melting method, system and storage medium that maintains consistent energy. Background Technology
[0002] In existing fat reduction technologies, laser projection is easily affected by skin movement (such as breathing, muscle contraction, and hand shaking) and body surface geometry (such as curvature and distance changes), making it difficult to calibrate projection parameters in real time. This results in uneven energy distribution in the fat reduction area, with localized excessive or insufficient energy, which affects the fat reduction effect and increases the risk of skin burns, failing to meet the needs for precise and safe fat reduction. Summary of the Invention
[0003] The purpose of this invention is to overcome the problem of uneven energy distribution in the melting area caused by motion and geometric interference in existing grease melting technologies, and to provide a grease melting method, system and storage medium that maintains consistent energy.
[0004] The objective of this invention is mainly achieved through the following technical solutions: This invention provides a method for fat melting that maintains consistent energy levels, comprising the following steps: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit, and the point cloud data of the body surface is collected in real time by the depth sensing unit. Based on relative motion data and body surface point cloud data, a dynamic three-dimensional surface model of the human body surface region is constructed. Obtain the first laser irradiation parameters at the first breath moment; Based on the dynamic three-dimensional surface model, the first parameters of the fat-dissolving area at the first breathing moment are obtained. The first parameters include the first skin surface curvature, the first laser incident angle, and the first laser projection distance; wherein, the first laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area. Based on the dynamic three-dimensional surface model, the second parameters of the fat-dissolving area at the second breathing time are obtained. The second parameters include the second skin surface curvature, the second laser incident angle, and the second laser projection distance. The second laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area, and the second breathing time is greater than the first breathing time. The parameter difference is calculated based on the first and second parameters; The power and single irradiation duration of the first laser irradiation parameters are corrected based on the parameter difference to obtain the second laser irradiation parameters; The area to be melted is irradiated using the second laser irradiation parameters.
[0005] Furthermore, the steps for obtaining the first skin surface curvature include: The Delaunay mesh generation algorithm is used to mesh the dynamic 3D surface model. Based on the dynamic three-dimensional surface model, determine the adjacent regions that are adjacent to the melted area; Obtain the coordinates of the three vertices of the melted area as the first coordinate set, and obtain the coordinates of the three vertices of the adjacent area as the second coordinate set; The average side length of the melt region is calculated based on the first coordinate set. The unit normal vector of the melted area is calculated based on the first coordinate set and used as the first normal vector; and the unit normal vector of the adjacent area is obtained based on the second coordinate set and used as the second normal vector. The included angle between the vectors is calculated based on the first normal vector and the second normal vector. The curvature of the first skin surface is calculated based on the vector angle, the average region side length, and the curvature correction coefficient.
[0006] Furthermore, the steps for obtaining the first laser incident angle include: Obtain the vector of the laser projection direction as the projection vector; The first laser incident angle is calculated based on the projection vector and the first normal vector.
[0007] Furthermore, the steps for obtaining the first laser projection distance include: Extract the Z values of the three vertices in the melt region; Calculate the average of the three Z values and use the average as the first laser projection distance.
[0008] Furthermore, the calculated parameter differences include: The difference between the second laser projection distance and the first laser projection distance is calculated as the first difference. The difference between the second laser incident angle and the first laser incident angle is calculated as the second difference. The difference between the curvature of the second skin surface and the curvature of the first skin surface is calculated as the third difference.
[0009] Furthermore, during the fat melting process, the fat melting safety index data is monitored in real time. If any abnormality is detected in the fat melting safety index data, the irradiation is immediately paused and a warning signal is triggered. The safety indicators for fat reduction include one or more of the following: skin surface temperature, the fit between the device and the skin, and the power fluctuation of the laser.
[0010] Furthermore, real-time monitoring of fat reduction safety indicators includes: obtaining skin surface temperature through a temperature sensor; if the skin surface temperature exceeds the preset safe temperature range, irradiation of the corresponding area is immediately suspended and a warning signal is triggered.
[0011] Furthermore, real-time monitoring of fat reduction safety indicators also includes: monitoring the fit between the device and the skin through a pressure sensor; if the pressure is lower than the preset pressure threshold, irradiation will be immediately paused and a warning signal will be triggered.
[0012] Furthermore, real-time monitoring of liposuction safety indicators also includes: collecting laser power fluctuations through a power sensor; if the power fluctuation exceeds the preset power fluctuation range, the laser irradiation is immediately paused and a warning signal is triggered.
[0013] Furthermore, the steps for constructing a dynamic three-dimensional surface model of a human body surface region include: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit. The relative motion data includes the relative linear acceleration between the laser projection end and the body surface, the relative rotational angular velocity between the laser projection end and the body surface, the relative slip between the laser projection end and the body surface, and the relative attitude angle between the laser projection end and the body surface. Real-time acquisition of surface point cloud data is achieved through a depth sensing unit; The relative motion data and the surface point cloud data are fused to form a dynamic three-dimensional surface model.
[0014] Furthermore, the inertial measurement unit includes an accelerometer, a gyroscope, and a magnetometer.
[0015] Furthermore, the depth sensing unit includes one or more of a ToF camera, millimeter-wave radar, and structured light sensor.
[0016] A fat-dissolving system that maintains consistent energy levels, characterized in that it comprises: The data acquisition unit is configured to acquire relative motion data between the laser projection end and the body surface in real time, as well as acquire point cloud data of the body surface in real time. The model building unit is configured to build a dynamic three-dimensional surface model of the human body surface region based on relative motion data and body surface point cloud data. The parameter acquisition unit is configured to acquire the first parameter, the second parameter, and the first laser irradiation parameter; The calculation unit is configured to calculate the parameter difference between the second parameter and the first parameter; The laser control unit is configured to correct the first laser irradiation parameter based on the parameter difference to obtain the second laser irradiation parameter; The laser emitting unit is configured to irradiate the melting area according to the second laser irradiation parameters; The cooling unit is configured to cool the melting area during the melting process.
[0017] Furthermore, the fat-dissolving system also includes: The safety indicator monitoring unit is configured to monitor the safety indicator data of the grease melting operation in real time during the irradiation operation. If any abnormality is detected in the safety indicator data of the grease melting operation, the irradiation will be immediately suspended and an alarm signal will be triggered.
[0018] A storage medium that maintains consistent energy levels, wherein the storage medium stores instructions that, when invoked by a processor, are used to execute any of the above-described fat melting methods.
[0019] In summary, the present invention has the following advantages compared with the prior art: This solution uses a dynamic 3D surface model to capture skin movement and geometric changes in real time. Based on these changes, it accurately corrects laser irradiation parameters, solving the problem of uneven energy caused by movement and geometric interference. At the same time, during the fat reduction process, it monitors fat reduction safety indicators in real time to determine whether the process is safe. If any abnormality occurs, irradiation is immediately paused, thus meeting the safety requirements of the fat reduction process. Attached Figure Description
[0020] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings: Figure 1 This application provides a flowchart of the steps for a fat-dissolving method that maintains consistent energy levels; Figure 2 A flowchart of the steps for obtaining the first skin surface curvature provided in this application; Figure 3 A structural diagram of the liposuction system that maintains consistent energy levels, as provided in this application. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.
[0022] According to one embodiment of the present invention, such as Figure 1 As shown, a fat-dissolving method that maintains consistent energy levels includes the following steps: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit, and the point cloud data of the body surface is collected in real time by the depth sensing unit. Based on relative motion data and body surface point cloud data, a dynamic three-dimensional surface model of the human body surface region is constructed. Obtain the first laser irradiation parameters at the first breath moment; Based on the dynamic three-dimensional surface model, the first parameters of the fat-dissolving area at the first breathing moment are obtained. The first parameters include the first skin surface curvature, the first laser incident angle, and the first laser projection distance; wherein, the first laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area. Based on the dynamic three-dimensional surface model, the second parameters of the fat-dissolving area at the second breathing time are obtained. The second parameters include the second skin surface curvature, the second laser incident angle, and the second laser projection distance. The second laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area, and the second breathing time is greater than the first breathing time. The parameter difference is calculated based on the first and second parameters; The power and single irradiation duration of the first laser irradiation parameters are corrected based on the parameter difference to obtain the second laser irradiation parameters; The area to be melted is irradiated using the second laser irradiation parameters.
[0023] In this embodiment, a depth sensing unit collects point cloud data of the body surface area to be treated, while an inertial measurement unit (IMU) simultaneously records the relative motion data between the laser projection end and the body surface. The collected point cloud data is first processed by filtering, hole filling, and normal estimation. Then, combined with the relative motion data collected by the IMU, it is filtered using an extended Kalman filter algorithm and updated in real time to form a dynamic three-dimensional surface model that changes with skin movement. This model is updated every 50ms to adapt to the dynamic changes in the body surface caused by respiratory movements. Before irradiation, initial laser irradiation parameters need to be set in the device. The preset power range of the initial laser irradiation parameters is 28~30W, and the preset range of the single irradiation duration is 180ms~200ms. These initial laser irradiation parameters are determined based on a large number of previous phantom experiments and are suitable for most people with normal and / or sensitive skin.
[0024] Subsequently, the first irradiation parameters at the first breath moment are collected, and the first parameters at the first breath moment are obtained based on the dynamic three-dimensional surface model. The second parameters at the second breath moment are also obtained based on the dynamic three-dimensional surface model. Then, the parameter difference between the second and first parameters is calculated. Based on this parameter difference, the power and single irradiation duration of the first laser irradiation parameters are adjusted to obtain the second laser irradiation parameters. At this point, the second laser irradiation parameters are adapted to the current body surface morphology and can form a uniformly projected energy surface in the fat-dissolving area of the current body shape. This method can accurately correct laser irradiation parameters based on skin movement and geometric changes, solving the problem of energy unevenness caused by movement and geometric interference.
[0025] In one possible implementation, such as Figure 2 As shown, the steps for obtaining the curvature of the first skin surface include: The Delaunay mesh generation algorithm is used to mesh the dynamic 3D surface model. Based on the dynamic three-dimensional surface model, determine the adjacent regions that are adjacent to the melted area; Obtain the coordinates of the three vertices of the melted area as the first coordinate set, and obtain the coordinates of the three vertices of the adjacent area as the second coordinate set; The average side length of the melt region is calculated based on the first coordinate set. The unit normal vector of the melted area is calculated based on the first coordinate set and used as the first normal vector; and the unit normal vector of the adjacent area is obtained based on the second coordinate set and used as the second normal vector. The included angle between the vectors is calculated based on the first normal vector and the second normal vector. The curvature of the first skin surface is calculated based on the vector angle, the average region side length, and the curvature correction coefficient.
[0026] In this embodiment, the Delaunay mesh generation algorithm is used to divide the dynamic 3D surface model. The side length of the mesh unit is set within the range of 2-3 mm. This size range ensures the accuracy of curvature calculation while avoiding calculation delays caused by an excessive number of meshes. When determining adjacent regions, the boundary of the melt region is used as a reference, and the region within the mesh unit range outside the boundary is selected as the adjacent region, ensuring a direct geometric relationship between the adjacent region and the melt region. In this embodiment, the formula for calculating the vector angle is: In the formula, The angle between the vectors, The first normal vector, The second normal vector; the formula for calculating the curvature of the first skin surface is: In the formula, p is the curvature of the first skin surface, and k is the curvature correction coefficient. ∈(0,1], where L is the average side length of the region. It should be noted that the calculation steps for the curvature of the second skin surface are the same as those for the first skin surface, and will not be repeated here.
[0027] In one possible implementation, the steps for obtaining the first laser incident angle include: Obtain the vector of the laser projection direction as the projection vector; The first laser incident angle is calculated based on the projection vector and the first normal vector.
[0028] In this embodiment, the formula for calculating the first laser incident angle is: In the formula, The first laser incident angle, Let be the projection vector. It should be noted that the calculation steps for the second laser incident angle are the same as those for the first laser incident angle, and will not be repeated here.
[0029] In one possible implementation, the step of obtaining the first laser projection distance includes: Extract the Z values of the three vertices in the melt region; Calculate the average of the three Z values and use the average as the first laser projection distance.
[0030] In this embodiment, the formula for calculating the first laser projection distance is: ,in, , and These represent the Z values of the three vertices of the melting region. It should be noted that the calculation steps for the second laser projection distance are the same as those for the first laser projection distance, and will not be repeated here.
[0031] In one possible implementation, the calculated parameter differences include: The difference between the second laser projection distance and the first laser projection distance is calculated as the first difference. The difference between the second laser incident angle and the first laser incident angle is calculated as the second difference. The difference between the curvature of the second skin surface and the curvature of the first skin surface is calculated as the third difference.
[0032] In this embodiment, the correction of the first laser irradiation parameters based on the above-mentioned parameter difference includes: Based on the preset parameter differences, determine the combination range to which the first difference, second difference, and third difference belong, and determine the adjustment ratio of the power and single irradiation duration of the first laser irradiation parameters based on the combination range.
[0033] Among them, when the first difference is ≥2mm, the second difference is ≥2°, and the third difference is ≥2m -1 At that time, the preset range of the power increase ratio is 25%~67%, and the preset range of the single irradiation duration increase ratio is 40%~150%.
[0034] When the first difference is ≤-2mm, the second difference is ≤-2°, and the third difference is ≤-2m -1 At that time, the preset range for the power reduction ratio is 20%~33%, and the preset range for the reduction ratio of single irradiation duration is 30%~50%.
[0035] When the first difference is ≥2mm, the second difference is ≥2°, and the third difference is ≤-2m -1 At that time, the preset range of the power increase ratio is 10%~25%, and the preset range of the single irradiation duration increase ratio is 15%~50%.
[0036] When the first difference is ≥2mm, the second difference is ≤-2°, and the third difference is ≥2m -1At that time, the preset range of the power increase ratio is 5%~20%, and the preset range of the single irradiation duration increase ratio is 10%~40%.
[0037] When the first difference is ≤-2mm, the second difference is ≤-2°, and the third difference is ≥2m -1 At that time, the preset range for the power reduction ratio is 5% to 20%, and the preset range for the reduction ratio of single irradiation duration is 10% to 35%.
[0038] When the first difference is ≤-2mm, the second difference is ≥2°, and the third difference is ≤-2m -1 At that time, the preset range for the power reduction ratio is 0%~15%, and the preset range for the reduction ratio of single irradiation duration is 0%~30%.
[0039] In this embodiment, the power adjustment range and the single irradiation time adjustment range are both determined based on extensive prior phantom experiments, ensuring that the corrected irradiation parameters can accurately adapt to the irradiation scenario after dynamic changes in the body surface. Specifically, this includes: When the first difference is ≥2mm, the second difference is ≥2°, and the third difference is ≥2m -1 When the body surface is raised and the fat melting area is more prominent, the laser energy attenuation and dispersion effect are significant. Therefore, the power increase ratio is preset to 25%~67%, and the single irradiation duration increase ratio is preset to 40%~150%. The preset range of both is suitable for extreme dynamic scenarios where the body surface is raised significantly and the protrusion is obvious.
[0040] When the first difference is ≤-2mm, the second difference is ≤-2°, and the third difference is ≤-2m -1 At this time, the preset reduction ratio of power and single irradiation duration is suitable for scenarios where the body surface sinks significantly.
[0041] When the first difference is ≥2mm, the second difference is ≥2°, and the third difference is ≤-2m -1 At this time, the preset increase ratio of power and single irradiation duration is suitable for scenarios with a large lifting amplitude but obvious flattening.
[0042] When the first difference is ≥2mm, the second difference is ≤-2°, and the third difference is ≥2m -1 At this time, the preset increase ratio of power and single irradiation duration is suitable for scenarios where the protrusion is obvious but the incident angle decreases significantly.
[0043] When the first difference is ≤-2mm, the second difference is ≤-2°, and the third difference is ≥2m -1 At this time, the preset reduction ratio of power and single irradiation duration is suitable for scenarios where the sinking is large and the protrusion is still obvious.
[0044] When the first difference is ≤-2mm, the second difference is ≥2°, and the third difference is ≤-2m -1 At this time, the preset reduction ratio of power and single irradiation duration is suitable for scenarios with a large sinking amplitude and a significant increase in incident angle.
[0045] It should be noted that the specific power ranges and single irradiation duration ranges mentioned above are merely preferred embodiments of the present invention under specific experimental conditions and are not intended to limit the scope of protection of the present invention. In practical applications, those skilled in the art can adjust the above parameters according to laser wavelength, tissue thermal properties, and individual differences, without departing from the logical framework of the present invention.
[0046] In one possible implementation, during the degreasing process, the degreasing safety index data is monitored in real time. If an abnormality is detected in the degreasing safety index data, the irradiation is immediately paused and a warning signal is triggered. The safety indicators for fat reduction include one or more of the following: skin surface temperature, the fit between the device and the skin, and the power fluctuation of the laser.
[0047] In one possible implementation, real-time monitoring of liposuction safety indicators includes: acquiring skin surface temperature via a temperature sensor; if the skin surface temperature exceeds a preset safe temperature range, immediately pausing irradiation of the corresponding area and triggering a warning signal.
[0048] In this embodiment, the preset safe temperature range is 35℃-40℃, where 35℃ is the initial monitoring baseline and 40℃ is the absolute safety threshold. When the detected skin surface temperature exceeds 40℃, the system will pause irradiation of that area within 100ms to avoid skin burns from high temperatures. Simultaneously, an intermittent beeping sound will be emitted via a buzzer. Once the skin surface temperature drops below 37℃, the operation will be manually restarted. It should be noted that the above preset values are typical configurations for this embodiment and can be adjusted within a safe range in actual applications, and are not intended to limit the invention.
[0049] In one possible implementation, real-time monitoring of fat reduction safety indicators also includes: monitoring the fit between the device and the skin using a pressure sensor; if the pressure is lower than a preset pressure threshold, irradiation is immediately paused and a warning signal is triggered.
[0050] In this embodiment, the preset pressure threshold is 5N. When the pressure sensor detects a pressure below 5N, it indicates that the device has shifted or is not fully in contact with the target area. In this case, the laser may deviate from its irradiation range due to optical path misalignment, or even mistakenly irradiate non-melting areas. The system will immediately pause irradiation and emit an intermittent beeping sound. Once the pressure sensor detects a pressure value above 5N, the operation will be manually restarted. It should be noted that the above-mentioned preset values are typical configurations for this embodiment and can be adjusted within a safe range in actual applications. This does not limit the invention.
[0051] In one possible implementation, real-time monitoring of grease melting safety indicators also includes: collecting laser power fluctuations through a power sensor; if the power fluctuations exceed a preset power fluctuation range, immediately pausing laser irradiation and triggering a warning signal.
[0052] In this embodiment, if the laser power fluctuation is greater than ±8%, the system will immediately pause irradiation and trigger an alarm. It should be noted that the preset values described above are typical configurations for this embodiment; adjustments can be made within a safe range in actual applications, and this does not limit the invention.
[0053] In one possible implementation, the steps for constructing a dynamic three-dimensional surface model of a human body surface region include: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit. The relative motion data includes the relative linear acceleration between the laser projection end and the body surface, the relative rotational angular velocity between the laser projection end and the body surface, the relative slip between the laser projection end and the body surface, and the relative attitude angle between the laser projection end and the body surface. Real-time acquisition of surface point cloud data is achieved through a depth sensing unit; The relative motion data and the surface point cloud data are fused to form a dynamic three-dimensional surface model.
[0054] In this embodiment, the inertial measurement unit preferably integrates a sensor module with an accelerometer, gyroscope, and magnetometer, with a sampling frequency set to 100Hz to ensure real-time capture of motion data such as relative linear acceleration, relative rotational angular velocity, relative slip, and relative attitude angle between the laser projection end and the body surface. The depth sensing unit preferably uses a ToF camera with a resolution of 640×480, with a working distance range of 0.3~1.5m, and is equipped with a 77GHz millimeter-wave radar for tracking assistance. The body surface point cloud data collected by the ToF camera is denoised by bilateral filtering and filled with holes by Poisson reconstruction. Then, it is time-registered and feature-fused with the relative motion data output by the inertial measurement unit through Kalman filtering to finally construct a dynamic three-dimensional surface model.
[0055] In one possible implementation, the inertial measurement unit includes an accelerometer, a gyroscope, and a magnetometer.
[0056] In one possible implementation, the depth sensing unit includes one or more of a ToF camera, a millimeter-wave radar, and a structured light sensor.
[0057] Secondly, such as Figure 3 As shown, this application also provides a fat-dissolving system that maintains consistent energy for implementing the above-mentioned fat-dissolving method, characterized in that it comprises: The data acquisition unit is configured to acquire relative motion data between the laser projection end and the body surface in real time, as well as acquire point cloud data of the body surface in real time. The model building unit is configured to build a dynamic three-dimensional surface model of the human body surface region based on relative motion data and body surface point cloud data. The parameter acquisition unit is configured to acquire the first parameter, the second parameter, and the first laser irradiation parameter; The calculation unit is configured to calculate the parameter difference between the second parameter and the first parameter; The laser control unit is configured to correct the first laser irradiation parameter based on the parameter difference to obtain the second laser irradiation parameter; The laser emitting unit is configured to irradiate the melting area according to the second laser irradiation parameters; The cooling unit is configured to cool the melting area during the melting process.
[0058] In this embodiment, the cooling unit uses a TEC thermoelectric cooler or a liquid cooler with a transparent cooling window. The contact area between the cooling window and the skin is matched with the laser projection area to ensure that the cooling range covers the entire fat melting area. The start-up and stop of the cooling unit are synchronized with the laser irradiation unit.
[0059] In one possible implementation, the grease-dissolving system also includes: The safety indicator monitoring unit is configured to monitor the safety indicator data of the grease melting operation in real time during the irradiation operation. If any abnormality is detected in the safety indicator data of the grease melting operation, the irradiation will be immediately suspended and an alarm signal will be triggered.
[0060] Thirdly, this application also provides a storage medium that maintains consistent energy levels, wherein the storage medium stores instructions that, when invoked by a processor, are used to execute the melting method described in any of the above-mentioned methods.
[0061] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.
Claims
1. A method for fat melting that maintains consistent energy levels, characterized in that, Includes the following steps: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit, and the point cloud data of the body surface is collected in real time by the depth sensing unit. Based on the relative motion data and body surface point cloud data, a dynamic three-dimensional surface model of the human body surface region is constructed. Obtain the first laser irradiation parameters at the first breath moment; Based on the dynamic three-dimensional surface model, the first parameters of the fat-dissolving area at the first breathing moment are obtained. The first parameters include the first skin surface curvature, the first laser incident angle, and the first laser projection distance; wherein, the first laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area. Based on the dynamic three-dimensional surface model, the second parameters of the fat-dissolving area at the second breathing time are obtained. The second parameters include the second skin surface curvature, the second laser incident angle, and the second laser projection distance. The second laser projection distance is the vertical distance from the laser projection end to the fat-dissolving area, and the second breathing time is greater than the first breathing time. The parameter difference is calculated based on the first parameter and the second parameter; The power and single irradiation duration of the first laser irradiation parameters are corrected based on the parameter difference to obtain the second laser irradiation parameters; The area to be melted is irradiated using the second laser irradiation parameters.
2. The fat-dissolving method for maintaining consistent energy levels according to claim 1, characterized in that, The steps to obtain the first skin surface curvature include: The Delaunay mesh generation algorithm is used to mesh the dynamic three-dimensional surface model. Based on the dynamic three-dimensional surface model, determine the adjacent regions that are adjacent to the melted area; Obtain the coordinates of three vertices of the melted area as a first coordinate set, and obtain the coordinates of three vertices of the adjacent area as a second coordinate set; The average side length of the melt-in-oil region is calculated based on the first coordinate set. The unit normal vector of the melted region is calculated based on the first coordinate set as the first normal vector, and the unit normal vector of the adjacent region is obtained based on the second coordinate set as the second normal vector; The included angle between the vectors is calculated based on the first normal vector and the second normal vector. The curvature of the first skin surface is calculated based on the vector angle, the average region side length, and the curvature correction coefficient.
3. The fat-dissolving method for maintaining consistent energy levels according to claim 2, characterized in that, The steps to obtain the first laser incident angle include: Obtain the vector of the laser projection direction as the projection vector; The first laser incident angle is calculated based on the projection vector and the first normal vector.
4. The fat-dissolving method for maintaining consistent energy levels according to claim 2, characterized in that, The steps to obtain the first laser projection distance include: Extract the Z values of the three vertices in the melt region; Calculate the average of the three Z values and use the average as the first laser projection distance.
5. The fat-melting method for maintaining consistent energy levels according to claim 1, characterized in that, The calculated parameter differences include: The difference between the second laser projection distance and the first laser projection distance is calculated as the first difference; The difference between the second laser incident angle and the first laser incident angle is calculated as the second difference. The difference between the second skin surface curvature and the first skin surface curvature is calculated as the third difference.
6. The fat-melting method for maintaining consistent energy levels according to claim 1, characterized in that, During the degreasing process, the degreasing safety index data is monitored in real time. If any abnormality is detected in the degreasing safety index data, the irradiation is immediately paused and a warning signal is triggered. The fat melting safety index data includes one or more of the following: skin surface temperature, the fit between the device and the skin, and the power fluctuation of the laser.
7. The fat-melting method for maintaining consistent energy levels according to claim 6, characterized in that, Real-time monitoring of fat reduction safety indicators includes: obtaining skin surface temperature through a temperature sensor; if the skin surface temperature exceeds the preset safe temperature range, irradiation of the corresponding area will be immediately suspended and a warning signal will be triggered.
8. The fat-melting method for maintaining consistent energy levels according to claim 6, characterized in that, Real-time monitoring of fat reduction safety indicators also includes: monitoring the fit between the device and the skin through pressure sensors; if the pressure is lower than the preset pressure threshold, irradiation will be immediately paused and a warning signal will be triggered.
9. A fat-melting method for maintaining consistent energy levels according to claim 6, characterized in that, Real-time monitoring of liposuction safety indicators also includes: collecting laser power fluctuations through a power sensor; if the power fluctuation exceeds the preset power fluctuation range, the laser irradiation will be immediately paused and a warning signal will be triggered.
10. The fat-dissolving method for maintaining consistent energy levels according to claim 1, characterized in that, The steps for constructing a dynamic three-dimensional surface model of a human body surface region include: The relative motion data between the laser projection end and the body surface is collected in real time by the inertial measurement unit. The relative motion data includes the relative linear acceleration between the laser projection end and the body surface, the relative rotational angular velocity between the laser projection end and the body surface, the relative slip between the laser projection end and the body surface, and the relative attitude angle between the laser projection end and the body surface. Real-time acquisition of surface point cloud data is achieved through a depth sensing unit; The relative motion data and the surface point cloud data are fused to form a dynamic three-dimensional surface model.
11. The fat-melting method for maintaining consistent energy levels according to claim 10, characterized in that, The inertial measurement unit includes an accelerometer, a gyroscope, and a magnetometer.
12. The fat-melting method for maintaining consistent energy levels according to claim 10, characterized in that, The depth sensing unit includes one or more of a ToF camera, a millimeter-wave radar, and a structured light sensor.
13. A fat-dissolving system that maintains consistent energy levels, characterized in that, include: The data acquisition unit is configured to acquire relative motion data between the laser projection end and the body surface in real time, as well as acquire point cloud data of the body surface in real time. The model building unit is configured to build a dynamic three-dimensional surface model of the human body surface region based on relative motion data and body surface point cloud data. The parameter acquisition unit is configured to acquire the first parameter, the second parameter, and the first laser irradiation parameter; The calculation unit is configured to calculate the parameter difference between the second parameter and the first parameter; The laser control unit is configured to correct the first laser irradiation parameter based on the parameter difference to obtain the second laser irradiation parameter; The laser emitting unit is configured to irradiate the melting area according to the second laser irradiation parameters; The cooling unit is configured to cool the melting area during the melting process.
14. A fat-dissolving system that maintains consistent energy levels according to claim 13, characterized in that, The fat melting system also includes: The safety indicator monitoring unit is configured to monitor the safety indicator data of the grease melting operation in real time during the irradiation operation. If any abnormality is detected in the safety indicator data of the grease melting operation, the irradiation will be immediately suspended and an alarm signal will be triggered.
15. A storage medium that maintains consistent energy, characterized in that, The storage medium stores instructions that, when invoked by a processor, are used to execute the grease-melting method according to any one of claims 1 to 12.