Menstrual uterus warming nursing device and intelligent temperature control method thereof

Abstract

The invention relates to the technical field of biomedicine, in particular to a menstrual uterus-warming nursing device and an intelligent temperature control method thereof.In the process of conducting uterus-warming nursing on a user through the uterus-warming nursing device, body surface temperature data and blood flow data of the user within the coverage range of the uterus-warming nursing device at the current set temperature gear are obtained; analyzing the difference between the body surface temperature data and the standard temperature under the current set temperature gear, and determining the temperature achievement degree deviation at each monitoring moment; the change condition of the blood flow data is analyzed, and the thermal therapy effect at each monitoring moment is determined; and based on the change condition of the thermal therapy effect at each monitoring moment and the temperature achievement degree deviation at the current monitoring moment, determining whether to adjust a system target temperature in a temperature adjustment algorithm so as to realize self-adaptive control of the temperature in the uterus warming nursing process. According to the invention, temperature self-adaptive adjustment based on user physiological feedback can be realized.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of biomedical technology, in particular to a period warming care device and a temperature intelligent control method thereof. BACKGROUND

[0002] Among the many methods for relieving dysmenorrhea, warm therapy is a physical treatment method with a long history, significant effect and no side effects. Its mechanism of action is to continuously and stably apply heat to the lower abdomen of a female (i.e. the body surface projection area corresponding to the uterine cavity) through an external heat source. The heat energy causes local capillary vessels to dilate, increases blood flow, effectively relieves the spastic contraction of uterine smooth muscle, and reduces pain.

[0003] In the prior art, the warming device usually adopts a fixed gear mode for temperature adjustment. However, the fixed gear mode only provides limited temperature gears, and cannot adapt to individual differences in heat sensitivity. Its rigid constant temperature control ignores the dynamic perception of heat by the human body. For example, it cannot quickly respond to the need for warmth during the initial warming stage, and long-term constant heating can cause skin adaptation, sweating, and stuffy discomfort, lacking self-adaptive adjustment ability based on physiological feedback. SUMMARY

[0004] In order to solve the problem that the warming device in the prior art adopts a fixed gear mode for temperature adjustment, ignores the dynamic perception of heat by the human body, and lacks self-adaptive adjustment ability, the present application aims to provide a period warming care device and a temperature intelligent control method thereof. The technical solution adopted is as follows: In the first aspect, the present application provides a temperature intelligent control method for a period warming care device, comprising the following steps: In the process of warming care of the user by the warming care device, the body surface temperature data and blood flow data of the user within the coverage range of the warming care device at the current set temperature gear are acquired; The difference between the body surface temperature data and the standard temperature at the current set temperature gear is analyzed to determine the temperature achievement degree deviation at each monitoring time; The change of the blood flow data is analyzed to determine the heat therapy effect at each monitoring time, which is used to reflect the improvement degree of the blood flow of the user; Based on the change of the heat therapy effect at each monitoring time and the temperature achievement degree deviation at the current monitoring time, it is determined whether to adjust the system target temperature in the temperature adjustment algorithm to realize self-adaptive control of the temperature in the warming care process.

[0005] In combination with the first aspect described above, in some possible implementation manners, the difference between the body surface temperature data and the standard temperature at the current set temperature gear is analyzed to determine the temperature achievement degree deviation at each monitoring time, comprising: determining a temperature difference between the standard temperature at the current set temperature level and the temperature value of the body surface temperature data at each monitoring moment; determining a ratio of the temperature difference and a temperature span between the current set temperature level and a target level as a temperature achievement deviation at each monitoring moment, the target level being a highest temperature level lower than the initial temperature value in the body surface temperature data.

[0006] In some possible implementation manners of the first aspect, the change of the blood flow data is analyzed, and the hyperthermia effect at each monitoring moment is determined, including: determining a change trend feature at each monitoring moment based on a change trend of the blood flow within a fixed time length in the past of the blood flow data at each monitoring moment; determining a stable high value feature at each monitoring moment based on a fluctuation degree of the blood flow within a fixed time length in the past of the blood flow data at each monitoring moment and a blood flow distribution level of the blood flow data at each monitoring moment; determining the hyperthermia effect at each monitoring moment based on the change trend feature and the stable high value feature.

[0007] In some possible implementation manners of the first aspect, the change trend feature at each monitoring moment is determined, including: performing linear fitting on the blood flow within a fixed time length in the past of the blood flow data at each monitoring moment to obtain a fitting straight line; determining the change trend feature at each monitoring moment based on a slope of the fitting straight line.

[0008] In some possible implementation manners of the first aspect, the stable high value feature at each monitoring moment is determined, including: determining a mean value of the blood flow data before the start of the uterus warming care as a reference blood flow; determining a growth rate of the blood flow at each monitoring moment compared with the reference blood flow; determining a standard deviation of the blood flow within a fixed time length in the past of the blood flow data at each monitoring moment; determining the stable high value feature at each monitoring moment based on the growth rate and the standard deviation.

[0009] In some possible implementation manners of the first aspect, whether to adjust the system target temperature in the temperature adjustment algorithm to achieve adaptive control of the temperature in the uterus warming care process includes: if the hyperthermia effect at the current monitoring moment is greater than or equal to the first hyperthermia effect threshold value and the temperature value of the body surface temperature data at the current monitoring moment is less than the maximum temperature limit value, adjusting the system target temperature to the real-time temperature of the temperature data at the current moment; if the hyperthermia effect at the current monitoring moment is less than the first hyperthermia effect threshold value and greater than or equal to the second hyperthermia effect threshold value, and the temperature value of the body surface temperature data at the current monitoring moment is less than the maximum temperature limit value, keeping the system target temperature unchanged; if the hyperthermia effect at the current monitoring moment is less than the second hyperthermia effect threshold value, and the temperature value of the body surface temperature data at the current monitoring moment is less than the maximum temperature limit value, increasing the system target temperature; if the temperature value of the body surface temperature data at the current monitoring moment is greater than or equal to the maximum temperature limit value, adjusting the system target temperature to the set skin temperature value; based on the system target temperature or the adjusted system target temperature, using a set control method to perform temperature control in the womb care process.

[0010] In combination with the first aspect, in some possible implementation manners, increasing the system target temperature comprises: determining a temperature increase demand at the current monitoring moment based on the change trend of the hyperthermia effect at each monitoring moment and the temperature achievement degree deviation at the current monitoring moment; determining a temperature adjustment amount based on a temperature span between the current temperature gear and the temperature gear above it and the temperature increase demand; determining the sum of the system target temperature and the temperature adjustment amount as an adjustment temperature, and adjusting the system target temperature to the adjustment temperature.

[0011] In combination with the first aspect, in some possible implementation manners, determining the temperature adjustment amount, the method further comprises: determining a candidate temperature adjustment amount based on the temperature span and the temperature increase demand; determining the minimum value of the candidate temperature adjustment amount and a preset adjustment amount temperature limit value, and taking the minimum value as the temperature adjustment amount.

[0012] In combination with the first aspect, in some possible implementation manners, the set control method is a PID control method.

[0013] Secondly, the present invention also provides a menstrual uterine warming care device, including a main body of the menstrual uterine warming care device and a temperature control module. The main body of the menstrual uterine warming care device is provided with a temperature sensor and a blood flow acquisition sensor. The temperature sensor is used to collect body surface temperature data within the coverage area of ​​the menstrual uterine warming care device at the currently set temperature level and send it to the temperature control module during the process of using the menstrual uterine warming care device to provide uterine warming care. The blood flow acquisition sensor is used to collect blood flow data of the user within the coverage area of ​​the menstrual uterine warming care device and send it to the temperature control module during the process of using the menstrual uterine warming care device to provide uterine warming care. The temperature control module includes a memory, a processor, and executable computer program code stored in the memory and executable on the processor. When the processor executes the computer program code, it executes a temperature intelligent control method for the menstrual uterine warming care device according to the first aspect or any possible implementation thereof.

[0014] Thirdly, the present invention also provides a computer program product comprising: computer program code, which, when executed on a computer, causes the computer to perform a temperature intelligent control method for a menstrual uterine warming care device as described in the first aspect or any possible implementation thereof.

[0015] Fourthly, the present invention also provides a computer-readable storage medium storing computer program code, which, when executed on a computer, causes the computer to perform a temperature intelligent control method for a menstrual uterine warming care device according to the first aspect or any possible implementation thereof.

[0016] This invention offers the following advantages: First, during the uterine warming care process using the device, it acquires the user's surface temperature and blood flow data within the device's coverage area at the currently set temperature, providing a data foundation for temperature control. Second, by analyzing the difference between the surface temperature data and the standard temperature at the currently set temperature, it determines the temperature achievement deviation at each monitoring moment, reflecting the potential for temperature increase at each moment. Next, it analyzes changes in blood flow data to determine the thermotherapy effect at each monitoring moment, reflecting the degree of improvement in the user's blood flow. Finally, based on the changes in the thermotherapy effect at each monitoring moment and the temperature achievement deviation at the current monitoring moment, it determines whether to adjust the system target temperature in the temperature adjustment algorithm, thus achieving adaptive temperature control during the uterine warming care process. This invention abandons the single fixed temperature control mode, dynamically adjusting the heating temperature by analyzing physiological feedback data such as the user's temperature and blood flow during the uterine warming care process, significantly improving the adaptive capability and intelligence of temperature control. Attached Figure Description

[0017] To more clearly illustrate the technical solutions and advantages in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a flowchart illustrating the steps of an intelligent temperature control method for a menstrual period warming and care device according to an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a menstrual warming and care device according to an embodiment of the present invention. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the invention will be described in detail below through specific implementation methods and in conjunction with the accompanying drawings.

[0020] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the invention are shown in the drawings, it should be understood that the invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the invention. It should be understood that the accompanying drawings and embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the invention.

[0021] It should be understood that the various steps described in the method embodiments of the present invention may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of the present invention is not limited in this respect.

[0022] The term "comprising" and its variations as used herein are open-ended inclusions, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the description below.

[0023] It should be noted that the concepts of "first" and "second" mentioned in this invention are only used to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0024] Although operations or steps are described in a specific order in the accompanying drawings in the embodiments of the present invention, this should not be construed as requiring these operations or steps to be performed in the specific order or serial order shown, or requiring all of the shown operations or steps to be performed to obtain the desired result. In the embodiments of the present invention, these operations or steps may be performed serially; they may be performed in parallel; or a portion of these operations or steps may be performed.

[0025] Furthermore, it is understood that the data involved in the technical solutions of this invention (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and related provisions. Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains, and all parameters or indicators in the formulas involved in this invention are normalized values ​​that have eliminated the influence of dimensions.

[0026] To address the issue that the aforementioned uterine warming devices use fixed temperature settings for adjustment, neglecting the dynamic perception of heat by the human body and lacking adaptive adjustment capabilities, this invention, in the process of using a uterine warming device to provide uterine warming care, acquires the user's body surface temperature and blood flow data within the coverage area of ​​the device at the currently set temperature setting, analyzes changes in blood flow data, determines the thermotherapy effect at each monitoring moment, and, based on the changes in thermotherapy effect at each monitoring moment, and combined with the difference between the body surface temperature data and the standard temperature at the currently set temperature setting, determines whether to adjust the system target temperature in the temperature adjustment algorithm to achieve adaptive temperature control during the uterine warming care process.

[0027] The following will provide a detailed description of a menstrual warming and care device and its intelligent temperature control method provided by an embodiment of the present invention, with reference to the accompanying drawings.

[0028] Figure 1 This diagram illustrates the basic flow chart of a temperature intelligent control method for a menstrual uterine warming care device according to an embodiment of the present invention. Figure 1 As shown, the method specifically includes the following steps: Step S100: During the process of using the uterine warming care device to perform uterine warming care on the user, acquire the user's body surface temperature data and blood flow data within the coverage area of ​​the uterine warming care device at the currently set temperature level.

[0029] A temperature sensor is installed in the uterine warming care device. The temperature sensor periodically monitors the user's body surface temperature within the heating coverage area of ​​the uterine warming care device at a fixed monitoring frequency (e.g., once every 5 seconds) and transmits the real-time body surface temperature data to the temperature control module.

[0030] Meanwhile, a blood flow sensor is also installed in the uterine warming care device. The blood flow sensor periodically monitors the blood flow of the user in the heating coverage area of ​​the uterine warming care device at the same monitoring frequency as the temperature sensor, and transmits the real-time blood flow data collected to the temperature control module.

[0031] In one possible implementation, the blood flow sensor can be a photoplethysmography (PPG) sensor, which monitors the blood flow data as the AC component amplitude of the PPG signal. The PPG sensor measures changes in subcutaneous capillary blood flow by emitting green light and detecting the reflected light, acquiring the raw PPG signal, filtering it, and then extracting the AC component amplitude data. This AC component amplitude is a reliable, real-time proxy indicator reflecting the pulsatile blood flow in the local skin microcirculation; the AC amplitude increases when blood vessels dilate and blood flow increases, and decreases when blood vessels constrict and blood flow decreases.

[0032] The temperature control module is connected to a temperature sensor and a blood flow sensor to receive and analyze the body surface temperature and blood flow data transmitted by the temperature sensor and blood flow sensor. This allows it to quickly respond to changes in the user's temperature needs and automatically adjust the heating element, thereby achieving temperature regulation during the uterine warming care process.

[0033] Step S200: Analyze the difference between the body surface temperature data and the standard temperature at the currently set temperature level to determine the temperature achievement deviation at each monitoring time.

[0034] During the uterine warming care process using a uterine warming device, the user first selects a temperature setting on the device, which becomes the current temperature setting. This current temperature setting corresponds to a standard temperature. The differences between the user's skin temperature data monitored during the uterine warming care process and the standard temperature at the current temperature setting are analyzed to determine the temperature achievement deviation at each monitoring time. A larger difference between the monitored temperature value and the standard temperature indicates a greater potential for temperature increase at that monitoring time, resulting in a higher temperature achievement deviation; conversely, a smaller difference indicates a smaller potential for temperature increase, resulting in a lower temperature achievement deviation.

[0035] Step S300: Analyze the changes in blood flow data to determine the thermotherapy effect at each monitoring time.

[0036] The effect of thermotherapy is used to reflect the degree of improvement in the user's blood flow.

[0037] During hyperthermia, if the machine follows a preset standard temperature setting, individual differences (such as skin sensitivity and blood circulation status) may lead to deviations in therapeutic effect or the risk of discomfort. Therefore, this embodiment adopts a dynamic temperature optimization strategy: when approaching the standard temperature range, the heating temperature is dynamically adjusted through real-time physiological feedback (such as changes in body surface temperature and blood flow) to ultimately lock in the optimal comfortable therapeutic temperature for the individual user.

[0038] For example, at any monitoring moment during uterine warming therapy using a uterine warming device, the change in the AC component amplitude of the PPG signal can reflect changes in blood flow at the user's baseline blood flow level. Specifically, when the AC component amplitude increases, it indicates that the pulsatility of arterial blood volume with the heartbeat is enhanced, i.e., blood flow is increasing, which usually means that the heat therapy is taking effect; conversely, when the AC component amplitude decreases, it indicates that blood flow is decreasing, and the heat therapy effect may be insufficient.

[0039] Since relying solely on changes in blood flow is insufficient to comprehensively assess the efficacy of thermotherapy, it is necessary to quantify the stability of blood flow to accurately identify the true "plateau phase" of efficacy. This plateau occurs when blood flow stabilizes at a higher level that promotes microcirculation, rather than fluctuating continuously or remaining at a low level with no improvement. This mechanism avoids misjudging temporary stability caused by environmental disturbances as optimal efficacy, ensuring that the assessment of thermotherapy efficacy simultaneously meets the dual criteria of "high stability" and "high effectiveness," providing a reliable basis for personalized temperature control.

[0040] Therefore, embodiments of the present invention analyze changes in blood flow data to determine the thermotherapy effect at each monitoring time, so as to reflect the degree of improvement in the user's blood flow and to reflect the individual physiological feedback of the user.

[0041] Step S400: Based on the changing trend of the thermotherapy effect at each monitoring time and the temperature achievement deviation at the current monitoring time, determine whether to adjust the system target temperature in the temperature adjustment algorithm to achieve adaptive temperature control during the uterine warming care process.

[0042] The ideal state pursued by the uterine warming care device is that blood flow continuously improves and eventually enters a stable plateau period at a high level. Therefore, when it is judged that the therapeutic effect has reached its best, the current temperature should be actively maintained to keep it comfortable. When the therapeutic effect is insufficient, the system target temperature in the temperature regulation algorithm needs to be dynamically adjusted in combination with the current temperature position.

[0043] Specifically, during the process of using a uterine warming device to provide uterine warming care, if the user's body surface temperature is still rising and the heat therapy effect is insufficient, the system's target temperature in the temperature regulation algorithm should be dynamically adjusted based on the changing trend of the heat therapy effect at each monitoring time and the temperature achievement deviation at the current monitoring time. This target temperature should be moved closer to the next higher temperature level to respond to the user's stronger heat therapy needs. However, when the heat therapy effect is already close to the ideal state, it means that further heating will not provide the expected therapeutic benefit and will increase the risk of heat injury. At this point, even if the user's body surface temperature is far from the standard temperature at the currently set temperature level, the current dynamic optimal temperature should be immediately locked, and the system should enter maintenance mode to avoid overheating. Therefore, the system abandons a single fixed temperature control mode and instead dynamically adjusts the heating temperature based on real-time monitoring of the user's body surface temperature and blood flow changes. This ensures that local blood flow is always maintained within an ideal range that meets the user's physiological comfort, thus achieving an intelligent shift from constant temperature control to therapeutic maintenance-based control.

[0044] Based on the above technical solution, during the process of using a uterine warming device to provide uterine warming care to users, the device acquires the user's skin temperature and blood flow data within its coverage area at the currently set temperature. By analyzing the difference between the skin temperature data and the standard temperature at the currently set temperature, the temperature achievement deviation at each monitoring moment is determined. Simultaneously, the changes in blood flow data are analyzed to determine the thermotherapy effect at each monitoring moment, reflecting the degree of improvement in the user's individual blood flow. Therefore, based on the changes in the thermotherapy effect at each monitoring moment, and combined with the temperature achievement deviation at the current monitoring moment, it is determined whether to adjust the system target temperature in the temperature adjustment algorithm. This achieves adaptive temperature control during the uterine warming care process, significantly improving the adaptive capability and intelligence of temperature control.

[0045] In one possible implementation, step S200 analyzes the difference between the body surface temperature data and the standard temperature at the currently set temperature level to determine the temperature achievement deviation at each monitoring time, including: Step S201: Determine the temperature difference between the standard temperature and the body surface temperature data at each monitoring time under the current temperature setting.

[0046] In a specific example, for any monitoring time x, calculate the standard temperature at the currently set temperature level. The temperature value of body surface temperature at that monitoring time x The difference Thus, the temperature difference at monitoring time x is obtained. .

[0047] Step S202: Determine the ratio of the temperature difference to the temperature range between the current set temperature level and the target temperature level as the temperature achievement deviation at each monitoring time.

[0048] The target temperature setting refers to the highest temperature setting below the initial temperature value in the body surface temperature data. At this point, the initial temperature value in the body surface temperature data is between the currently set temperature setting and the target temperature setting.

[0049] In a specific example, for any monitoring time x, the temperature difference at monitoring time x is calculated. Temperature range between the current set temperature and the target temperature setting ratio This ratio is taken as the temperature achievement deviation at monitoring time x, and denoted as... When the temperature reaches a certain level of deviation The larger the value, the higher the heating requirement and heating space of the nursing device when the target temperature is the standard temperature of the current temperature setting at the monitoring time x.

[0050] In this way, during the process of using a uterine warming device to provide uterine warming care to users, the deviation in temperature achievement at each monitoring time can be determined.

[0051] Based on the above technical solution, the temperature difference between the standard temperature at the current temperature setting and the body surface temperature data at each monitoring time is calculated to quantify the distance between the temperature value at each monitoring time and the standard temperature at the current temperature setting. This distance reflects the temperature rise space at each monitoring time. The distance is normalized by using the temperature range between the current temperature setting and the target temperature setting as the denominator, thereby obtaining the temperature achievement deviation at each monitoring time. This temperature achievement deviation reflects the degree to which the temperature at the monitoring time approaches the standard temperature at the current temperature setting.

[0052] In one possible implementation, step S300 involves analyzing changes in blood flow data to determine the thermotherapy effect at each monitoring time point, including: Step S301: Based on the blood flow change trend of blood flow data within a historical fixed duration at each monitoring time, determine the change trend characteristics at each monitoring time.

[0053] Among them, the trend characteristics reflect the changing trend of blood flow data at each monitoring time.

[0054] The AC component of the PPG signal corresponds to the change in blood volume caused by the pulse. The amplitude of the AC component can reflect the pulsatile blood flow of local blood vessels. During dysmenorrhea, blood flow to the uterine region decreases. When heat therapy takes effect, vasodilation and blood flow increase, and the amplitude of the AC component of the PPG signal usually increases. By quantifying the trend of blood flow changes over a fixed historical period at each monitoring time, the characteristic trend at each monitoring time can be determined.

[0055] In one possible implementation, a linear fit is performed on the blood flow data over a fixed historical time period at each monitoring moment to obtain a fitted straight line. This fitted straight line reflects the trend of blood flow change at each monitoring moment. Based on the slope of the fitted straight line, the characteristic trend of change at each monitoring moment is determined.

[0056] Specifically, to quantify the dynamic changes in the direction and rate of local blood flow during hyperthermia, it is necessary to establish a feature that objectively reflects the trend of blood flow changes. This involves monitoring any given time point... Linear fitting was performed on the AC component amplitude data over the past 30 seconds, and the slope of the fitted line was used to determine the value at the monitoring time. Trend characteristics This is used to reflect the overall direction of change in blood flow. When A positive value, and the larger the value, the more it reflects vasodilation and increased blood flow, indicating a greater improvement in blood flow level relative to the initial heating stage; when... When the value is positive and the smaller or even negative, it reflects a weakening or even declining trend in blood flow, indicating a weakening of the therapeutic effect of heat therapy.

[0057] It should be understood that, since the uterine warming heating process involves a gradual temperature change, each monitoring moment refers to the moment after the uterine warming care device begins to take effect (e.g., 1 minute) after the uterine warming care for the user has started.

[0058] Based on the slope of the fitted straight line, the slope at that monitoring time is determined using the following formula. Trend characteristics : In the formula: Represents the S-shaped growth function; To adjust parameters (such as setting) =10); The standard slope value is determined by statistically analyzing the slope of blood flow data during the warming period of a large number of users, and is used for... Standardize the process.

[0059] In the above formula, when the trend of change is characterized When the value is greater than 0, it indicates that the blood flow is increasing but has not yet reached saturation, even if the trend characteristics are... The value of the trend factor is very small. The value of is also relatively large, with its maximum value being 1; conversely, when the trend characteristics are... When the value is less than 0, even if the trend characteristics are... The absolute value of the trend factor is very small. The value of is also relatively small, with its minimum value being 0.

[0060] Step S302: Based on the fluctuation of blood flow data within a fixed historical time period at each monitoring time, and the blood flow distribution level at each monitoring time, determine the stable high value characteristics at each monitoring time.

[0061] Among them, the stable high value characteristic reflects the stability and relative level of blood flow data at each monitoring time.

[0062] When the hyperthermia effect is optimal, blood flow should stabilize at an ideal high level, rather than fluctuating continuously. Therefore, the degree of fluctuation in blood flow data over a fixed historical period at each monitoring time, as well as the blood flow distribution level at each monitoring time, are analyzed to determine the stable high-value characteristics at each monitoring time. When the fluctuation of blood flow data over a fixed historical period at the monitoring time is small, and the distribution level is relatively high compared to the start of heating, the larger the stable high-value characteristic value at the corresponding monitoring time, reflecting a better current hyperthermia effect.

[0063] In one possible implementation, firstly, the average blood flow data of the user before the start of the uterine warming treatment is obtained as the baseline blood flow. Due to individual differences, after the user puts on the uterine warming device but before the treatment begins, blood flow data is acquired via a blood flow sensor as the initial baseline data. Specifically, in the initial state before the uterine warming device heats up, PPG signals are continuously collected for thirty seconds, and the average value of its AC component amplitude is calculated. This average value is used as the user's baseline AC component amplitude, i.e., the baseline blood flow, and is recorded as follows: .

[0064] Secondly, the growth rate of blood flow at each monitoring time point relative to the baseline blood flow was determined as an unstable indicator. Specifically, the growth rate of blood flow at any monitoring time point was calculated. AC component amplitude amplitude of the reference AC component The difference Calculate the difference. amplitude of the reference AC component The ratio, and use this ratio as the monitoring time. The increase in blood flow rate compared to the baseline blood flow rate is denoted as . .

[0065] Next, the standard deviation of blood flow data over a fixed historical time period at each monitoring time is determined. Specifically, the standard deviation of blood flow at any monitoring time is calculated. The standard deviation of the AC component amplitude data over the past 30 seconds, denoted as . .

[0066] Finally, based on the growth rate and standard deviation, the characteristics of stable high values ​​at each monitoring time were determined. Specifically, based on any monitoring time... growth rate with standard deviation The monitoring time is calculated using the following formula. Stable high value characteristics : in: This represents the hyperbolic tangent function, whose range is (0,1) when the input is greater than 0. The target growth rate (e.g., set to 0.3, meaning an expected increase of 30%). To adjust parameters (such as setting) =0.50); As the baseline value for the instability index, which is not 0, PPG signals were continuously collected for 30 seconds in the initial state before the uterine warming device was heated, and the standard deviation of its AC component amplitude was calculated as... .

[0067] In the above formula, when At that time, the increase factor The value of is approximately equal to 0, when Greater than At that time, the increase factor A larger value indicates that the blood flow has reached a relatively high level; at the same time, when Smaller, close to the instability index benchmark At that time, stability factor A larger value indicates that the thermotherapy response is stable and continuous vasodilation, meaning that blood flow data fluctuates within a narrow range and maintains a high level. This signifies that blood flow has entered a stable state, corresponding to a stable high-value characteristic. The larger the value, the better.

[0068] Step S303: Based on the changing trend characteristics and stable high value characteristics, determine the thermotherapy effect at each monitoring time.

[0069] The fundamental purpose of thermotherapy is to promote local blood circulation and relieve symptoms such as cold uterus and dysmenorrhea. A significant increase in blood flow indicates successful vasodilation and the effectiveness of the heat therapy. A healthy thermotherapy response is characterized by stable and continuous vasodilation. The greater the increase in blood flow and the smaller the fluctuations in blood flow, the more stable the blood flow changes, and the more reliable and effective the treatment. Therefore, when using a uterine warming device to provide uterine warming care, the thermotherapy effect at each monitoring time is determined by comprehensively considering the changing trends and stable high-value characteristics at various monitoring points.

[0070] In one possible implementation, the calculation is performed at any monitoring time. Trend characteristics and stable high value characteristics product and the product As of the monitoring time The heat therapy effect, and recorded as .

[0071] Based on the above technical solution, the trend of blood flow changes in blood flow data over a fixed historical period at each monitoring time is quantified to determine the trend characteristics of the trend values ​​at each monitoring time. At the same time, the degree of fluctuation of blood flow data over a fixed historical period at each monitoring time, as well as the level of blood flow distribution at each monitoring time, are quantified to determine the stable high-value characteristics of the stability characteristics at each monitoring time. Finally, based on the trend characteristics and stable high-value characteristics, the thermotherapy effect at each monitoring time is determined.

[0072] In one possible implementation, step S400, determining whether to adjust the system target temperature in the temperature regulation algorithm to achieve adaptive temperature control during uterine warming care, includes: Case 1: If the hyperthermia effect at the current monitoring time is greater than or equal to the first hyperthermia effect threshold, and the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature will be adjusted to the real-time temperature of the temperature data at the current time.

[0073] A first thermotherapy effect threshold is preset, which refers to a physiologically effective indicator. Blood flow data from multiple historical users during uterine warming treatments using the device are statistically analyzed. Based on this data, the thermotherapy effect at each monitoring moment during the uterine warming treatment for each historical user is determined. These thermotherapy effects are then curve-fitted, and all curves are averaged into a smooth curve. The position where the smooth curve first dips is determined, and the thermotherapy effect at that position is used as the first thermotherapy effect threshold, such as a value of 0.75.

[0074] If the thermotherapy effect at the current monitoring moment is greater than or equal to 0.75, and the body surface temperature at the current monitoring moment is less than the maximum temperature limit (the maximum temperature limit refers to the safe heating temperature, such as 42 ℃), indicating that the current dynamic optimal temperature has been reached, then the system target temperature will be adjusted to the real-time temperature of the temperature data at the current moment. The system target temperature refers to the command target temperature for controlling the heating temperature of the uterine warming device. The initial value of this command target temperature is the standard temperature at the user-set temperature level.

[0075] Scenario 2: If the thermotherapy effect at the current monitoring time is less than the first thermotherapy effect threshold but greater than or equal to the second thermotherapy effect threshold, and the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature will remain unchanged.

[0076] A second thermotherapy effect threshold is preset, which refers to the lowest clinically effective indicator. Blood flow data from multiple historical users during uterine warming care using the device are statistically analyzed. Based on this data, the thermotherapy effect at each monitoring moment during the uterine warming care process for each historical user is determined. These thermotherapy effects are then curve-fitted, and all curves are averaged into a smooth curve. The thermotherapy effect corresponding to the first 15% increase in blood flow on this smooth curve is determined, and this effect is used as the second thermotherapy effect threshold, such as a value of 0.30.

[0077] If the thermotherapy effect at the current monitoring time is less than 0.75 and greater than or equal to 0.30, and the body surface temperature at the current monitoring time is less than the maximum temperature limit of 42 ℃, it indicates that vasodilation is currently in progress. Maintaining the current heating power will allow the trend to converge naturally, and the system target temperature will remain unchanged.

[0078] Scenario 3: If the heat therapy effect at the current monitoring time is less than the second heat therapy effect threshold, and the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature will be increased.

[0079] The goal of hyperthermia is to increase local blood flow. If the hyperthermia effect is less than 0.30 at the current monitoring time and the body surface temperature is less than the maximum temperature limit of 42 ℃ at the current monitoring time, it means that the current hyperthermia effect cannot meet the requirements and the system target temperature needs to be increased to raise the temperature.

[0080] Scenario 4: If the body surface temperature data at the current monitoring time is greater than or equal to the maximum temperature limit, then the system target temperature will be adjusted to the set skin temperature value.

[0081] When the body surface temperature data at the current monitoring time is greater than or equal to the maximum temperature limit, the temperature control at this time still has a positive error. Therefore, the target temperature must be reversed to quickly reduce the heating power. Thus, when the body surface temperature data at the current monitoring time is greater than or equal to the maximum temperature limit, the system target temperature is adjusted to the set skin temperature value, such as 37℃.

[0082] For the four scenarios mentioned above, a set control method is used to control the temperature during the uterine warming care process, based on the system target temperature or the adjusted system target temperature. Specifically, the uterine warming care device uses a PID control method to control the temperature during the uterine warming care process. The system target temperature or the adjusted system target temperature is used as the command target temperature for PID control in the PID controller. Based on this command target temperature, the PID controller precisely adjusts the heating power so that the real-time temperature smoothly approaches and stabilizes at the command target temperature, thereby achieving temperature control of the uterine warming care device.

[0083] In one possible implementation, increasing the target system temperature includes: First, based on the changing trends of the hyperthermia effect at each monitoring time point and the temperature achievement deviation at the current monitoring time point, the heating demand at the current monitoring time point is determined. The temperature achievement deviation at the current monitoring time point reflects the physical space and urgency of heating; a larger value indicates that the current temperature is further from the target, and from a temperature perspective, the motivation for heating is stronger. Simultaneously, based on the changing trends of the hyperthermia effect at each monitoring time point, the magnitude of the change in the hyperthermia effect at the current monitoring time point is determined. A larger magnitude of change reflects a more obvious trend in the hyperthermia effect, indicating a higher demand for heating. Specifically, the average slope of the change in the hyperthermia effect at the current monitoring time point and its preceding predetermined number of monitoring times (e.g., 5) is determined, and this average value is used as the average slope. The product of this average slope and the temperature achievement deviation at the current monitoring time point is calculated, and then... A normalization function (such as maximum normalization) normalizes the product to the range (0,1) and uses the obtained normalized value as the temperature rise requirement at the current monitoring moment. The greater the temperature rise requirement, the greater the dynamic control of the temperature, and the more necessary it is to dynamically adjust the temperature in cases of insufficient therapeutic effect based on the temperature rise requirement.

[0084] Secondly, based on the temperature range between the current set temperature level and its previous level, and the heating demand, the temperature adjustment amount is determined. This involves calculating the product of the temperature range between the current set temperature level and its previous level, and the heating demand at the current monitoring moment, and using this product as the candidate temperature adjustment amount. The minimum value between this candidate temperature adjustment amount and the preset adjustment amount temperature limit (the maximum temperature adjustment amount, such as 2℃, used to constrain the temperature adjustment amount to prevent overly aggressive temperature control) is then determined, and this minimum value is used as the temperature adjustment amount.

[0085] Finally, the sum of the system target temperature and the temperature adjustment amount is determined as the adjustment temperature, and the system target temperature is adjusted to this adjustment temperature.

[0086] Based on the above technical solution, by comprehensively considering the changing trends of the thermotherapy effect at each monitoring time and the temperature achievement deviation at the current monitoring time, the heating requirement at the current monitoring time is determined, and based on the heating requirement, the system target temperature is adaptively adjusted, thereby promoting the blood flow level to achieve the best therapeutic effect.

[0087] Based on the same inventive concept, embodiments of the present invention also provide a menstrual period warming and care device, such as... Figure 2 As shown, the device includes a menstrual uterine warming care device body and a temperature control module. The menstrual uterine warming care device body refers to an existing care device without a temperature sensor and a blood flow sensor. The temperature control module is used to control the heating process of the menstrual uterine warming care device body. The menstrual uterine warming care device body is equipped with a temperature sensor and a blood flow sensor. The temperature sensor collects body surface temperature data within the coverage area of ​​the warming care device at the currently set temperature level and sends it to the temperature control module. The blood flow sensor collects blood flow data within the coverage area of ​​the warming care device and sends it to the temperature control module. The temperature control module includes a memory, a processor, and computer program code stored in the memory and running on the processor. When the processor executes the computer program code, the system can perform any of the aforementioned intelligent temperature control methods for the menstrual uterine warming care device.

[0088] In this embodiment of the invention, the temperature control module can be divided into functional modules according to the above method example. For example, each module can be assigned to a separate functional module, or two or more functions can be integrated into one processing module. The integrated module can be implemented in hardware. It should be noted that the module division in this embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0089] Based on the same inventive concept, embodiments of the present invention also provide a computer program product, which includes: computer program code, which, when run on a computer, causes the computer to execute any of the aforementioned intelligent temperature control methods for menstrual warming care devices.

[0090] Based on the same inventive concept, embodiments of the present invention also provide a computer-readable storage medium storing computer program code, which, when executed on a computer, causes the computer to perform any of the aforementioned intelligent temperature control methods for menstrual warming care devices.

[0091] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention, and should all be included within the protection scope of the present invention.

Claims

1. A method for intelligent temperature control of a menstrual period warming and care device, characterized in that, Includes the following steps: During the process of using a uterine warming device to provide uterine warming care to users, the body surface temperature data and blood flow data of users within the coverage area of ​​the uterine warming device are obtained at the current temperature setting. Analyze the difference between the body surface temperature data and the standard temperature at the currently set temperature level to determine the temperature achievement deviation at each monitoring time. Analyze the changes in the blood flow data to determine the thermotherapy effect at each monitoring time. The thermotherapy effect is used to reflect the degree of improvement in the user's blood flow. Based on the changes in the thermotherapy effect at each monitoring time and the temperature achievement deviation at the current monitoring time, it is determined whether to adjust the system target temperature in the temperature adjustment algorithm to achieve adaptive temperature control during the uterine warming care process.

2. The intelligent temperature control method for a menstrual period warming and care device according to claim 1, characterized in that, Analyze the difference between the body surface temperature data and the standard temperature at the currently set temperature level to determine the temperature achievement deviation at each monitoring time, including: Determine the temperature difference between the standard temperature at the current temperature setting and the temperature value of the body surface temperature data at each monitoring time. The ratio of the temperature difference to the temperature range between the current set temperature level and the target temperature level is determined as the temperature achievement deviation at each monitoring time. The target temperature level refers to the highest temperature level that is lower than the initial temperature value in the body surface temperature data.

3. The intelligent temperature control method for a menstrual period warming and care device according to claim 1, characterized in that, Analyze the changes in the blood flow data to determine the thermotherapy effect at each monitoring time point, including: Based on the blood flow data, the blood flow variation trend within a historical fixed duration at each monitoring time is determined to have the variation trend characteristics at each monitoring time. Based on the fluctuation of blood flow data within a fixed historical time period at each monitoring moment, and the blood flow distribution level of blood flow data at each monitoring moment, the stable high value characteristics at each monitoring moment are determined. Based on the changing trend characteristics and the stable high value characteristics, the thermotherapy effect at each monitoring time is determined.

4. The intelligent temperature control method for a menstrual period warming and care device according to claim 3, characterized in that, Determine the trend characteristics at each monitoring time point, including: The blood flow data at each monitoring time is fitted with a straight line within a historical fixed duration to obtain a fitted straight line. Based on the slope of the fitted straight line, the changing trend characteristics at each monitoring time are determined.

5. The intelligent temperature control method for a menstrual period warming and care device according to claim 3, characterized in that, The characteristics of stable high values ​​at each monitoring time point were identified, including: The average blood flow data of the user before the start of uterine warming care was determined as the baseline blood flow. Determine the growth rate of the blood flow data at each monitoring time relative to the baseline blood flow; Determine the standard deviation of the blood flow data over a fixed historical time period at each monitoring moment; Based on the growth rate and the standard deviation, stable high-value characteristics at each monitoring time are determined.

6. The intelligent temperature control method for a menstrual period warming and care device according to claim 1, characterized in that, Determine whether to adjust the system target temperature in the temperature regulation algorithm to achieve adaptive temperature control during uterine warming care, including: If the heat therapy effect at the current monitoring time is greater than or equal to the first heat therapy effect threshold, and the temperature value of the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature is adjusted to the real-time temperature of the temperature data at the current time. If the heat therapy effect at the current monitoring time is less than the first heat therapy effect threshold and greater than or equal to the second heat therapy effect threshold, and the temperature value of the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature remains unchanged. If the heat therapy effect at the current monitoring time is less than the second heat therapy effect threshold, and the temperature value of the body surface temperature data at the current monitoring time is less than the maximum temperature limit, then the system target temperature is increased. If the temperature value of the body surface temperature data at the current monitoring time is greater than or equal to the maximum temperature limit, the system target temperature will be adjusted to the set skin temperature value. Temperature control during uterine warming care is performed based on the system target temperature or the adjusted system target temperature using a set control method.

7. The intelligent temperature control method for a menstrual period warming and care device according to claim 6, characterized in that, Increase the system target temperature, including: Based on the changing trend of the hyperthermia effect at each monitoring time and the temperature achievement deviation at the current monitoring time, the heating requirement at the current monitoring time is determined. Based on the temperature range between the current temperature setting and its previous temperature setting, and the heating requirement, determine the temperature adjustment amount; The sum of the system target temperature and the temperature adjustment amount is determined as the adjustment temperature, and the system target temperature is adjusted to the adjustment temperature.

8. The intelligent temperature control method for a menstrual period warming and care device according to claim 7, characterized in that, The method for determining the temperature adjustment amount further includes: Based on the temperature range of the gear and the heating requirement, determine the selectable temperature adjustment amount; The minimum value between the candidate temperature adjustment amount and the preset adjustment amount temperature limit is determined, and the minimum value is used as the temperature adjustment amount.

9. The intelligent temperature control method for a menstrual period warming and care device as described in claim 7, characterized in that, The control method described is the PID control method.

10. A menstrual period warming and care device, characterized in that, The device includes a menstrual uterine warming care device body and a temperature control module. The menstrual uterine warming care device body is equipped with a temperature sensor and a blood flow acquisition sensor. The temperature sensor is used to collect surface temperature data of the user within the coverage area of ​​the menstrual uterine warming care device at the currently set temperature level and send it to the temperature control module. The blood flow acquisition sensor is used to collect blood flow data of the user within the coverage area of ​​the menstrual uterine warming care device and send it to the temperature control module. The temperature control module includes a memory, a processor, and executable computer program code stored in the memory and executable on the processor. When the processor executes the computer program code, it performs a temperature intelligent control method for a menstrual uterine warming care device as described in any one of claims 1 to 9.

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