Medicinal cake moxibustion applying device with temperature monitoring function and temperature monitoring method

Abstract

The invention provides a medicine cake separated moxibustion applying device with a temperature monitoring function and a temperature monitoring method.The medicine cake separated moxibustion applying device comprises a heat insulation sleeve assembly, an ultrasonic sensor, an infrared sensor and a display and data processing assembly, a medicine cake covers a target acupuncture point of the body surface of a patient, and the heat insulation sleeve assembly is arranged on the outer side of the medicine cake in a sleeving mode; the medicine cake is located at the bottom of the inner side of the heat insulation sleeve assembly, the ignition end of the moxa stick extends into the heat insulation sleeve assembly and is located over the medicine cake, and the ultrasonic sensor and the infrared sensor are aligned to the skin away from the center point of the medicine cake by a target distance and used for measuring the skin temperature Tskin of the corresponding position; according to the method, the temperature Tunder of the skin of a medicine cake covering part is calculated through Tskin, it is ensured that the moxibustion applying temperature is within a safe range, skin burn caused by too high temperature is avoided, temperature control is accurate, when Tunder exceeds a preset threshold value, a reminding alarm signal is sent out, effective transmission of heat and medicine can be ensured, and the treatment effect and safety can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of traditional Chinese medicine moxibustion, and in particular to a moxibustion device and a temperature monitoring method for real-time monitoring of skin temperature during the moxibustion process. Background Art

[0002] In traditional Chinese medicine, moxibustion with medicated cake is a widely used treatment method. It covers the corresponding acupuncture points with a thin cake made of medicine, and then aims the lit moxa stick at the cake for moxibustion. During the moxibustion, the heat of the moxibustion and the medicinal power of the cake are concentrated on the acupuncture points, and the heat from the burning moxibustion is used to promote the penetration of the medicine into the acupuncture points, thereby achieving the therapeutic effects of warming the meridians and collaterals, removing cold and dampness, promoting qi and blood circulation, and restoring yang and consolidating deficiency. During the moxibustion process with medicated cake, temperature control is crucial.

[0003] First, if the moxibustion temperature is too low, it will directly affect the treatment effect. The efficacy of moxibustion depends on sufficient heat transferred to the patient's body to activate the circulation of qi and blood, enhance the patency of meridians, and promote the relief and recovery of symptoms. Too low a temperature will lead to insufficient heat and fail to fully stimulate the corresponding acupoints, thereby weakening the treatment effect and making it impossible for patients to obtain the expected therapeutic effect; secondly, if the moxibustion temperature is too high, there is a risk of scalding the patient's skin. Too high a moxibustion temperature will cause local skin overheating, which may cause adverse reactions such as skin burns, redness, swelling, and even blistering. In severe cases, it may also cause tissue damage, which not only causes pain to the patient's body, but may also affect the patient's trust and acceptance of traditional Chinese medicine; therefore, temperature monitoring and control during moxibustion is particularly important.

[0004] In order to ensure the safety and efficacy of herbal cake-partitioned moxibustion, accurately obtaining the temperature of the patient's skin during the moxibustion process has become a key link. At present, although traditional temperature measurement methods, such as contact thermometers, can provide certain temperature data, they have limitations, such as interference with the skin, limited measurement accuracy, and inability to monitor temperature changes in real time. There are also some non-contact temperature measurement technologies that have been used in clinical and home health monitoring, such as infrared thermometers, thermal imagers, etc. However, the application of these technologies in herbal cake-partitioned moxibustion still faces some challenges, including how to obtain stable and accurate temperature data in a complex moxibustion environment, direct temperature measurement will have a certain impact on moxibustion, how to indirectly measure the temperature without interfering with moxibustion, how to achieve real-time monitoring and feedback, etc.; therefore, a moxibustion device with an indirect and accurate temperature measurement device and a temperature measurement method are needed to monitor the skin temperature during herbal cake-partitioned moxibustion, so as to improve the therapeutic effect and safety of herbal cake-partitioned moxibustion. Summary of the invention

[0005] The purpose of the present invention is to solve the problems existing in the above-mentioned background technology, and to provide a moxibustion device and a temperature measurement method for measuring skin temperature by combining infrared measurement and ultrasonic measurement, thereby reducing the measurement data error caused by using a single sensor and a single measurement principle.

[0006] The present invention adopts the following technical scheme: a moxibustion device with a temperature monitoring function, comprising a heat-insulating sleeve assembly, an ultrasonic sensor, an infrared sensor, and a display and data processing assembly, the medicine cake covers the target acupuncture points on the patient's body surface, the heat-insulating sleeve assembly is sleeved on the outside of the medicine cake, the medicine cake is at the bottom of the inner side of the heat-insulating sleeve assembly, the ignited end of the moxa stick extends into the heat-insulating sleeve assembly and is directly above the medicine cake, the ultrasonic sensor and the infrared sensor are respectively aimed at the skin at a target distance from the center point of the medicine cake, and are used to measure the skin temperature at the corresponding position;

[0007] The display and data processing component includes a data acquisition module, a data processing module and an alarm module. The data acquisition module is used to collect temperature data monitored by the ultrasonic sensor and the infrared sensor, and transmit the temperature data to the data processing module. The data processing module is used to process the temperature data monitored by the ultrasonic sensor and the infrared sensor to obtain the skin comprehensive temperature T at the target distance from the center of the medicine cake. skin , and through T skin Calculate the skin temperature T of the area covered by the medicine cake under , the alarm module is used in T under When the preset threshold is exceeded, a reminder alarm signal is issued.

[0008] Furthermore, the display and data processing component also includes a power module, a display screen and a setting module. The power module is used to power the moxibustion device, and the display screen displays specific data information, including but not limited to temperature data monitored by ultrasonic sensors and infrared sensors, T skin , T under , preset threshold, reminder alarm signal, the setting module is used to set the preset threshold.

[0009] Furthermore, the thermal insulation sleeve assembly includes an insulation tube and an extension plate, the insulation tube is sleeved on the outside of the medicine cake, the medicine cake is at the bottom of the inner side of the insulation tube, the ignition end of the moxa stick extends into the insulation tube and is directly above the medicine cake, the extension plate is fixedly mounted on the outer side of the insulation tube and extends in a direction perpendicular to the insulation tube, the ultrasonic sensor and the infrared sensor are fixedly mounted on the extension plate, and the ultrasonic sensor and the infrared sensor are respectively aimed at the skin at a target distance from the center point of the medicine cake.

[0010] Furthermore, a support net is fixedly provided on the bottom surface of the heat insulation cylinder.

[0011] Furthermore, the measuring end of the ultrasonic sensor is in contact with the skin at a target distance from the center point of the medicine cake, the measuring end of the infrared sensor is directly above the target distance from the center point of the medicine cake, and the measuring end of the infrared sensor is 3-5 cm away from the skin.

[0012] Furthermore, a plurality of ultrasonic sensors and infrared sensors are respectively provided, and the plurality of ultrasonic sensors and infrared sensors are evenly distributed around a circle, and the ultrasonic sensors and infrared sensors are distributed at intervals.

[0013] Furthermore, a temperature monitoring method of a moxibustion device for moxibustion with medicinal cakes includes:

[0014] Step 1: Sensor layout:

[0015] The ultrasonic sensor and the infrared sensor are respectively aimed at the skin at different positions at the target distance from the center point of the medicine cake to monitor the temperature of the skin at the target distance from the center point of the medicine cake;

[0016] Step 2: Data collection:

[0017] Ultrasonic sensors and infrared sensors are used to collect the skin temperature at different target locations from the center of the medicine cake in real time;

[0018] Step 3: Data processing:

[0019] The temperature data monitored by the ultrasonic sensor and the infrared sensor are processed to obtain the temperature T' measured by the infrared sensor. infrared And the temperature T measured by the ultrasonic sensor ultrasonic The skin comprehensive temperature T at the target distance from the center of the medicine cake is calculated by the following formula skin ;

[0020] T skin =α·T infrared +β·T ultrasonic

[0021] Among them, α and β are weighting coefficients. The minimum mean square error (MSE) is found by the gradient descent method, and then the value of the weighting coefficient corresponding to the minimum mean square error is determined;

[0022] Based on the finite element heat conduction analysis process, the skin temperature T of the lower surface of the medicine cake can be obtained. under The skin temperature at the target distance from the center of the medicine cake, that is, the skin temperature T skin The function model between:

[0023] T skin =0.17675T under +28.88707

[0024] According to this model, the skin temperature T at the target distance from the center of the medicine cake can be skin Estimate the skin temperature T on the lower surface of the medicine cake under , the skin temperature T of the lower surface of the medicine cake under Real-time monitoring;

[0025] Step 4: Temperature monitoring and early warning:

[0026] When the skin temperature under the medicine cake is T under When the preset threshold is exceeded, the alarm module sends out a reminder alarm signal.

[0027] Furthermore, an ultrasonic coupling agent is applied to the skin directly below the ultrasonic detector so that the measuring end of the ultrasonic sensor is in close contact with the skin, the measuring end of the infrared sensor is directly above the target distance from the center point of the medicine cake, and the measuring end of the infrared sensor is 3-5 cm away from the skin.

[0028] Furthermore, the ultrasonic sensor and the infrared sensor are provided in plurality, and the plurality of ultrasonic sensors and the infrared sensors are evenly distributed in a circle, and the ultrasonic sensors and the infrared sensors are distributed at intervals; wherein T′ infrared is the average value of temperature data measured by multiple infrared sensors, T′ ultrasonic It is the average value of temperature data measured by multiple ultrasonic sensors.

[0029] The moxibustion device separated by medicine cake in the present invention is implemented by enclosing the medicine cake in a heat-insulating tube, wherein the heat-insulating tube is used to block the heat radiation generated when the moxa stick burns, so as to prevent the heat radiation from heating the skin under the sensor and thus affecting the temperature measurement, so that the heat radiation generated when the moxa stick burns can only pass through the medicine cake and be transmitted to the skin covered by the medicine cake and the surrounding skin in turn; the temperature of the skin at a target distance from the center point of the medicine cake is monitored by a composite temperature measurement method combining infrared temperature measurement with ultrasonic temperature measurement, so as to calculate the skin temperature of the part covered by the medicine cake, and can monitor the temperature of the skin of the part covered by the medicine cake in real time and accurately during the moxibustion process, ensure that the moxibustion temperature is within a safe range, avoid skin burns caused by excessive temperature, accurately control the temperature, ensure the effective transmission of heat and medicine, improve the treatment effect and safety, improve the measurement accuracy, and provide technical support for the modernization of traditional Chinese medicine therapies. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Attached Figure 1 It is a schematic cross-sectional view of the overall structure of the moxibustion device using medicated cakes for moxibustion in the present invention.

[0031] Attached Figure 2 It is a schematic diagram of the temperature measurement principle of the moxibustion device for moxibustion with medicinal cake in the present invention.

[0032] Attached Figure 3 It is a schematic diagram of heat transfer simulation during the moxibustion process of the medicine cake moxibustion in the present invention.

[0033] Attached Figure 4 This is a diagram of the heat transfer simulation results of the moxibustion process of the medicine cake moxibustion in the present invention.

[0034] Attached Figure 5 It is a scatter point fitting diagram of the skin temperature at a target distance from the center of the medicine cake and the skin temperature on the lower surface of the medicine cake in the heat transfer simulation of the moxibustion process of the middle-septum medicine cake of the present invention.

[0035] The reference numerals are described as follows: moxa stick 1, thermal insulation sleeve assembly 2, thermal insulation tube 2.1, extension plate 2.2, medicine cake 3, ultrasonic sensor 4, infrared sensor 5, human skin 6, display and data processing assembly 7. DETAILED DESCRIPTION

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work. The invention content is further described below in conjunction with the drawings:

[0037] Example 1

[0038] Refer to the instruction manual Figure 1 A moxibustion device with a temperature monitoring function includes a heat-insulating sleeve component 2, an ultrasonic sensor 4, an infrared sensor 5, and a display and data processing component 7. The medicine cake 3 covers the target acupuncture point on the patient's body surface skin 6.

[0039] Refer to the instruction manual Figure 1 The insulation sleeve assembly 2 includes an insulation tube 2.1 and an extension plate 2.2. The insulation tube 2.1 is mounted on the outside of the medicine cake 3. The medicine cake 3 is at the bottom of the inner side of the insulation tube 2.1. The insulation tube 2.1 is made of insulation materials that can block heat flow transfer, such as glass fiber, asbestos, rock wool, silicate, aerogel felt, vacuum plate, etc.; the ignition end of the moxa stick 1 extends into the insulation tube 2.1 and is directly above the medicine cake 3. The insulation tube 2.1 is used to block the heat radiation generated by the burning of the moxa stick 1 from heating the skin 6 outside the insulation tube 2.1, thereby greatly reducing the influence of heat radiation on the temperature measurement of the skin 6 around the medicine cake 3, so that the heat radiation generated by the burning of the moxa stick 1 can only be transmitted through the medicine cake 3 to the skin covered by the medicine cake and the surrounding skin in turn.

[0040] The extension plate 2.2 is fixedly mounted on the outer surface of the heat-insulating tube 2.1, is circular, and extends in a direction perpendicular to the heat-insulating tube 2.1. Three ultrasonic sensors 4 and three infrared sensors 5 are fixedly mounted on the extension plate 2.2, and are evenly distributed around the circumference. The ultrasonic sensors 4 and the infrared sensors 5 are spaced apart from each other. The ultrasonic sensors 4 and the infrared sensors 5 are respectively aimed at the skin at a target distance (e.g., 12 mm) from the center point of the medicine cake 3 to measure the skin temperature at the corresponding position.

[0041] The measuring end of the ultrasonic sensor 4 is in contact with the skin at a target distance from the center point of the medicine cake 3, and the measuring end of the infrared sensor 5 is directly above the target distance (for example, 12 mm) from the center point of the medicine cake 3, and the measuring end of the infrared sensor 5 is 3 cm away from the skin.

[0042] When the temperature of the lower surface of the medicine cake 3 is too high, it is necessary to transfer the medicine cake 3 and the insulation sleeve assembly 2. In order to facilitate the transfer of the medicine cake 3 when transferring the insulation sleeve assembly 2, a support net is fixed on the bottom surface of the insulation cylinder 2.1. The support net is made of metal or plastic materials such as stainless steel and copper, and the medicine cake 3 is supported on the support net.

[0043] Refer to the instruction manual Figure 2 The display and data processing component 3 includes a data acquisition module, a data processing module, an alarm module, a power module, a display screen and a setting module. The data acquisition module is used to collect the temperature data monitored by the ultrasonic sensor 4 and the infrared sensor 5, and transmit the above temperature data to the data processing module. The data processing module is used to process the temperature data monitored by the ultrasonic sensor 4 and the infrared sensor 5 to obtain the skin comprehensive temperature T at the target distance (for example, 12 mm) from the center point of the medicine cake 3. skin , and through T skin Calculate the skin temperature T of the area covered by the medicine cake 3 under , the alarm module is used in T under When the preset threshold is exceeded, a reminder alarm signal is issued, and the reminder alarm signal includes a ring alarm, an audible and visual alarm, etc. The power module is used to power the moxibustion device, and the display screen displays specific data information, including but not limited to the temperature data monitored by the ultrasonic sensor 4 and the infrared sensor 5, T skin , T under , preset threshold, reminder alarm signal, the setting module is used to set the preset threshold (the preset threshold is between 45-60 degrees), and the preset threshold can be adjusted and set according to the tolerance level of different patients.

[0044] The method of using the moxibustion device separated by the medicine cake described in this embodiment is as follows: first, place the medicine cake 3 into the heat-insulating tube 2.1 and support it on the supporting net, cover the heat-insulating tube 2.1 and the medicine cake 3 on the target acupuncture points on the patient's body surface skin 6, adjust the positions of the infrared sensor 5 and the ultrasonic sensor 4 (make the measuring end of the ultrasonic sensor 4 fit the skin at a target distance (for example, 12 mm) from the center point of the medicine cake 3, the measuring end of the infrared sensor 5 is directly above the target distance (for example, 12 mm) from the center point of the medicine cake 3, and the measuring end of the infrared sensor 5 is 3 cm away from the skin), light the moxa stick 1, and clamp it with auxiliary devices such as a bracket, so that the ignited end of the moxa stick 1 extends into the heat-insulating tube 2.1 and is directly above the medicine cake 3 (or use an moxa tower, place the moxa tower directly on the medicine cake 3, and light the top of the moxa tower), turn on the power of the device, and then start the moxibustion operation;

[0045] When the skin temperature monitored by the infrared sensor 5 and the ultrasonic sensor 4 exceeds the preset threshold, the alarm module sends out a reminder alarm signal, prompting the moxibustion personnel to adjust the distance between the moxa stick 1 and the human skin, or adjust the distance between the insulation sleeve assembly 2 and the human skin 6, or temporarily stop the moxibustion operation to lower the temperature of the skin 6 and prevent burns to the patient's skin.

[0046] Example 2

[0047] Based on Example 1, a temperature monitoring method for a moxibustion device with a medicinal cake moxibustion comprises:

[0048] Step 1: Sensor layout:

[0049] Three infrared sensors 5 and three ultrasonic sensors 4 are evenly arranged around the insulation sleeve assembly 2 in the circumferential direction, and the ultrasonic sensors 4 and the infrared sensors 5 are spaced apart. The ultrasonic sensors 4 and the infrared sensors 5 are respectively aimed at the skin 12 mm away from the center point of the medicine cake 3, wherein an ultrasonic coupling agent is applied on the skin 6 just below the ultrasonic detector 4 to make the ultrasonic sensor 4 close to the skin 6, the measuring end of the infrared sensor 5 is just above the skin 6, and the measuring end of the infrared sensor 5 is 3 cm away from the skin. In order to avoid the error caused by measuring the temperature by a single temperature measurement method, the infrared sensor 5 and the ultrasonic sensor 4 are used to monitor the skin temperature at six positions 12 mm away from the center point of the medicine cake 3 in real time.

[0050] Step 2: Data collection:

[0051] The infrared sensor 5 uses the thermal effect of infrared radiation to measure the absorbed infrared radiation through the thermoelectric effect, pyroelectric effect and thermistor, and indirectly measures the skin temperature data of the corresponding position of the radiated infrared light; the ultrasonic sensor 4 is lightly pressed on the skin 6 to emit an ultrasonic pulse, which passes through the skin 6 and propagates in the skin 6, and attenuates during the propagation process, and is reflected at the junction of the skin and the fat layer. After receiving the reflected signal, the ultrasonic sensor 4 can measure the skin temperature data of the corresponding position; the ultrasonic sensor 4 and the infrared sensor 5 collect the skin temperature of six different positions 12 mm away from the center point of the medicine cake 3 in real time;

[0052] Among them: Infrared temperature calculation:

[0053]

[0054] Among them, T infrared is the temperature measured by infrared, E is the emissivity of the object (here refers to the emissivity of human skin, which is 0.95 or 0.98), σ is the Stefan-Boltzmann constant, V output is the sensor output voltage, and R is the resistance.

[0055] Ultrasonic temperature calculation:

[0056] a. Filter the acquired ultrasonic data corresponding to the tth second:

[0057]

[0058] Among them, F t (i, j, n) is the nth frame of the original ultrasound image within the tth second.

[0059] b. Use Gaussian filtering to smooth the image. Use the specified template to scan each pixel in the image. Use the weighted average of the grayscale value of the pixel itself and the neighborhood calculated by the template as the substitute grayscale value of the pixel. The expression for two-dimensional Gaussian filtering is as follows:

[0060]

[0061] Among them, σ is used to describe the degree of discreteness of data distribution.

[0062] c. Perform subtraction processing on the ultrasonic image. The specific calculation formula of the subtraction image F′(i, j) is as follows:

[0063]

[0064] Where, F(i, j) is the ultrasound image during measurement, It is the ultrasonic image corresponding to the biological tissue at the reference temperature T0.

[0065] d. Perform wavelet transform on the subtracted image. The continuous wavelet transform of the signal f(t) is defined as:

[0066]

[0067] Where a, b∈R, and a>0, a is the scale factor after discretization; b is the translation factor after discretization; is a single basic wavelet.

[0068] e. Calculate the gray-level co-occurrence matrix H(i, j) of the reconstructed image after wavelet transformation and extract the mixed entropy:

[0069]

[0070] Among them, L is the grayscale level of the grayscale image, L g is the grayscale level of the gradient image, and the expression of the normalized grayscale gradient co-occurrence matrix H′(i, j) is:

[0071]

[0072] Among them, H(i, j) is defined as the number of elements with gray value i and gradient value j.

[0073] f. Fit a linear model based on the data of mixing entropy and corresponding temperature:

[0074] H=0.08332T+0.63395

[0075] Among them, H is the mixing entropy, T is the temperature at the measurement point, and the linear correlation coefficient of the fitting model reaches 0.9891.

[0076] g. After processing the ultrasonic data obtained from each measurement to obtain the mixing entropy H, substitute it into the model obtained in step f to calculate the temperature T at the measurement point ultrasonic .

[0077] Step 3: Data processing:

[0078] a. Take the average value of the data measured by the three infrared sensors 5 and the three ultrasonic sensors 4, and obtain the average temperature T measured by the infrared sensors. infrared , the temperature measured by the ultrasonic sensor T′ ultrasonic .

[0079] b. Calculate skin temperature:

[0080] T skin =α·T′ infrared +β·T′ ultrasonic

[0081] Among them, Tskin The comprehensive temperature of the skin at a distance of 12 mm from the center point of the medicine cake 3 measured by this system, α and β are weighting coefficients. The experiment adopts the above two measurement ideas, uses two sensors to measure the temperature of the blackbody radiation source, and uses the gradient descent method to find the minimum mean square error (MSE), and then determines the value of the weighting coefficient corresponding to the minimum mean square error.

[0082] c. Calculation of skin temperature under the medicine cake:

[0083] The article "Uncertainty analysis and optimization for mild moxibustion" proposes a method for uncertainty analysis and optimization of mild moxibustion, which involves the thermal radiation simulation process of mild moxibustion in COMSOL. This embodiment uses the moxa stick, human tissue material parameters and geometric parameters in the simulation model, and adds a medicine cake 3 with a diameter of 1.5 cm and a thickness of 0.5 cm between the moxa stick 1 and the human skin 6. The finite element analysis of the heat conduction process from the medicine cake 3 to the skin is performed, as shown in FIG. Figure 3 As shown;

[0084] The temperature of the moxa stick burning point during the combustion process can be approximated to a constant value. The moxa stick burning point is set to generate heat radiation only on the upper surface of the medicine cake, and the medicine cake conducts heat to human tissue or human skin. Under this physical field condition, the study found that the functional relationship between the lower surface temperature of the medicine cake and the skin temperature around the medicine cake is a function of the medicine cake thermal conductivity and thermal radiation coefficient. Different values ​​do not affect the experimental results. The thermodynamic parameters of the medicine cake are consistent with the parameters of human skin, and the thermodynamic coefficients of the moxa stick and human tissue are consistent with the coefficients in the above model.

[0085] The simulation results are as follows Figure 4 As shown in the figure, by analyzing different data points on the skin surface and at the center of the medicine cake, it can be seen that the closer to the medicine cake, the more obvious the temperature change, and the easier it is for the sensor to capture the temperature change. Considering the existing conditions, the minimum size of the ultrasonic sensor probe can be 2mm in diameter, and the sensor data sampling point is 12mm away from the center of the medicine cake;

[0086] The article "Analysis of Temperature-Time Curve of Ginger Moxibustion" proposes an analysis of the relationship between the temperature of the lower surface of ginger slices and time in ginger moxibustion, and points out that when the skin surface temperature is between 44 and 51°C, within a certain exposure time, with each 1°C increase in temperature, the degree of damage to tissue cells will double. When the temperature is 51°C, the skin will be quickly damaged. In traditional ginger moxibustion, the lower surface temperature of the ginger slice exceeds 51°C for 4.5 minutes, which will cause great damage to the skin. 51°C is taken as the threshold value of the lower surface temperature of the medicine cake in this embodiment. The lower surface temperature of the medicine cake and the skin temperature data at 12mm from the center of the medicine cake during the thermal radiation of the moxa stick are analyzed. The skin temperature data at 12mm from the center of the medicine cake corresponding to the lower surface temperature of the medicine cake between 41 and 51 are taken for research. A scatter plot is made and data fitting is performed using Origin, as shown in the following figure. Figure 5 As shown, the function model between the lower surface temperature of the medicine cake and the skin temperature around the medicine cake can be obtained. When the lower surface temperature of the medicine cake reaches 51°C, it can be determined that it will cause damage to human skin.

[0087] Based on the above finite element heat conduction analysis process, the lower surface temperature T of the medicine cake can be obtained. under The skin temperature at 12 mm from the center of the medicine cake, that is, the skin temperature T skin The function model between:

[0088] T skin =0.17675T under +28.88707

[0089] According to this model, the temperature of the lower surface of the medicine cake can be inferred from the temperature of the skin around the medicine cake. under , the lower surface temperature of the medicine cake is T under Monitor in real time.

[0090] Step 4: Temperature monitoring and early warning:

[0091] When the skin temperature under the medicine cake is T under When the temperature exceeds the preset threshold of 51°C, the alarm module sends out a warning alarm signal.

[0092] Obviously, it is possible to modify and / or add components to the above-mentioned herbal cake-separated moxibustion device and the corresponding method without departing from the field and scope of the present invention.

[0093] It is also clear that although the present invention has described the herbal cake-partitioned moxibustion device in detail, those skilled in the art will certainly be able to obtain many other equivalent forms of herbal cake-partitioned moxibustion devices and corresponding methods, which have the characteristics as described in the claims and are therefore within the scope of the protection field defined thereby.

Claims

1. A moxibustion device with a temperature monitoring function, characterized in that: The invention comprises a heat-insulating sleeve assembly (2), an ultrasonic sensor (4), an infrared sensor (5) and a display and data processing assembly (7); the medicine cake (3) covers the target acupuncture point on the patient's body surface; the heat-insulating sleeve assembly (2) is sleeved on the outside of the medicine cake (3); the medicine cake (3) is located at the bottom of the inner side of the heat-insulating sleeve assembly (2); the ignited end of the moxa stick (1) extends into the heat-insulating sleeve assembly (2) and is located directly above the medicine cake (3); the ultrasonic sensor (4) and the infrared sensor (5) are respectively aimed at the skin at a target distance from the center point of the medicine cake (3) to measure the skin temperature at the corresponding position; The display and data processing component (3) comprises a data acquisition module, a data processing module and an alarm module. The data acquisition module is used to acquire temperature data monitored by the ultrasonic sensor (4) and the infrared sensor (5), and transmit the temperature data to the data processing module. The data processing module is used to process the temperature data monitored by the ultrasonic sensor (4) and the infrared sensor (5) to obtain the skin comprehensive temperature T at the target distance from the center point of the medicine cake (3). skin , and through T skin Calculate the skin temperature T of the area covered by the medicine cake (3) under , the alarm module is used in T under When the preset threshold is exceeded, a warning alarm signal is issued.

2. The moxibustion device with medicinal cake separation according to claim 1, characterized in that: The heat-insulating sleeve assembly (2) comprises a heat-insulating sleeve (2.1) and an extension plate (2.2); the heat-insulating sleeve (2.1) is sleeved on the outside of the medicine cake (3); the medicine cake (3) is located at the bottom of the inner side of the heat-insulating sleeve (2.1); the ignited end of the moxa stick (1) extends into the heat-insulating sleeve (2.1) and is located directly above the medicine cake (3); the extension plate (2.2) is fixedly mounted on the outer side of the heat-insulating sleeve (2.1) and extends in a direction perpendicular to the heat-insulating sleeve (2.1); the ultrasonic sensor (4) and the infrared sensor (5) are fixedly mounted on the extension plate (2.2); the ultrasonic sensor (4) and the infrared sensor (5) are respectively aligned with the skin at a target distance from the center point of the medicine cake (3).

3. The moxibustion device with medicinal cake separation according to claim 2, characterized in that: A support net is fixedly arranged on the bottom surface of the heat-insulating cylinder (2.1).

4. The moxibustion device with medicinal cake separation according to claim 1, characterized in that: The measuring end of the ultrasonic sensor (4) is in contact with the skin at a target distance from the center point of the medicine cake (3), the measuring end of the infrared sensor (5) is located directly above the target distance from the center point of the medicine cake (3), and the measuring end of the infrared sensor (5) is 3-5 cm away from the skin.

5. The moxibustion device with medicinal cake separation according to claim 1, characterized in that: A plurality of ultrasonic sensors (4) and infrared sensors (5) are respectively provided, and the plurality of ultrasonic sensors (4) and infrared sensors (5) are evenly distributed in a circle, and the ultrasonic sensors (4) and infrared sensors (5) are distributed at intervals.

6. The moxibustion device with medicinal cake separation according to claim 1, characterized in that: The display and data processing component (3) further comprises a power module, a display screen and a setting module. The power module is used to supply power to the moxibustion device. The display screen displays specific data information, including but not limited to temperature data monitored by the ultrasonic sensor (4) and the infrared sensor (5), T skin , T under , preset threshold, reminder alarm signal, the setting module is used to set the preset threshold.

7. A temperature monitoring method for a moxibustion device with a herbal cake moxibustion according to any one of claims 1 to 6, comprising: Step 1: Sensor layout: The ultrasonic sensor (4) and the infrared sensor (5) are respectively aimed at the skin at different positions at the target distance from the center point of the medicine cake (3) to monitor the temperature of the skin at the target distance from the center point of the medicine cake (3); Step 2: Data collection: The temperature of the skin at different target positions at a distance from the center point of the medicine cake (3) is collected in real time by using an ultrasonic sensor (4) and an infrared sensor (5); Step 3: Data processing: The temperature data monitored by the ultrasonic sensor (4) and the infrared sensor (5) are processed to obtain the temperature T′ measured by the infrared sensor. infrared And the temperature T' measured by the ultrasonic sensor ultrasonic The skin comprehensive temperature T at the target distance from the center point of the medicine cake (3) is calculated by the following formula skin ; T skin =α·T′ infrared +β·T′ ultrasonic Among them, α and β are weighting coefficients. The minimum mean square error (MSE) is found by the gradient descent method, and then the value of the weighting coefficient corresponding to the minimum mean square error is determined; Based on the finite element heat conduction analysis process, the skin temperature T of the lower surface of the medicine cake can be obtained. under The skin temperature at the target distance from the center of the medicine cake, that is, the skin temperature T skin The function model between: T skin =0.17675T under +28.88707 According to this model, the skin temperature T at the target distance from the center of the medicine cake can be skin Estimate the skin temperature T on the lower surface of the medicine cake under , the skin temperature T of the lower surface of the medicine cake under Real-time monitoring; Step 4: Temperature monitoring and early warning: When the skin temperature under the medicine cake is T under When the preset threshold is exceeded, the alarm module sends out a reminder alarm signal.

8. The temperature monitoring method according to claim 7, characterized in that: An ultrasonic coupling agent is applied to the skin directly below the ultrasonic detector (4), so that the measuring end of the ultrasonic sensor (4) is in close contact with the skin, the measuring end of the infrared sensor (5) is directly above the target distance from the center point of the medicine cake (3), and the measuring end of the infrared sensor (5) is 3-5 cm away from the skin.

9. The temperature monitoring method according to claim 7, characterized in that: The ultrasonic sensor (4) and the infrared sensor (5) are respectively provided in plurality, and the plurality of ultrasonic sensors (4) and the infrared sensors (5) are evenly distributed in a circle, and the ultrasonic sensors (4) and the infrared sensors (5) are distributed at intervals; wherein T′ infrared is the average value of the temperature data measured by multiple infrared sensors (5), T′ ultrasonic It is the average value of temperature data measured by multiple ultrasonic sensors (4).

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