CN116807730B - Beauty instrument, temperature self-adaptive detection method and device - Google Patents
Beauty instrument, temperature self-adaptive detection method and device Download PDFInfo
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- CN116807730B CN116807730B CN202311071724.0A CN202311071724A CN116807730B CN 116807730 B CN116807730 B CN 116807730B CN 202311071724 A CN202311071724 A CN 202311071724A CN 116807730 B CN116807730 B CN 116807730B
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- 238000001514 detection method Methods 0.000 title claims abstract description 77
- 230000003796 beauty Effects 0.000 title claims abstract description 18
- 239000004020 conductor Substances 0.000 claims description 19
- 230000003044 adaptive effect Effects 0.000 claims description 18
- 238000004590 computer program Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 230000035945 sensitivity Effects 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 206010053615 Thermal burn Diseases 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 239000002537 cosmetic Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000011871 bio-impedance analysis Methods 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002847 impedance measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F7/007—Heating or cooling appliances for medical or therapeutic treatment of the human body characterised by electric heating
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/01—Measuring temperature of body parts ; Diagnostic temperature sensing, e.g. for malignant or inflamed tissue
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0001—Body part
- A61F2007/0052—Body part for treatment of skin or hair
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
- A61F2007/0086—Heating or cooling appliances for medical or therapeutic treatment of the human body with a thermostat
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Vascular Medicine (AREA)
- Physics & Mathematics (AREA)
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- Pathology (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Measuring And Recording Apparatus For Diagnosis (AREA)
Abstract
The application provides a beauty instrument, a temperature self-adaptive detection method and a device, wherein the temperature self-adaptive detection method is applied to a beauty instrument, the beauty instrument comprises an electrode head, a thermistor and an electrode sheet, the thermistor and the electrode sheet are arranged in the electrode head, the thermistor is connected with the electrode sheet, and the temperature self-adaptive detection method comprises the following steps: detecting a first detection temperature by a thermistor; acquiring heat input into skin through the electrode plate, thickness of the electrode plate, heat conductivity coefficient of the electrode plate and area of the electrode plate; determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; and adding the first detection temperature and the compensation temperature to obtain the actual temperature. The actual temperature is closer to the temperature of the surface of the electrode plate, when the temperature of the surface of the electrode plate exceeds the skin safety temperature threshold, the temperature detected by the thermistor also exceeds the skin safety temperature threshold, and scalding caused by insensitive temperature detection of the thermistor can be avoided.
Description
Technical Field
The application relates to the technical field of temperature detection, in particular to a beauty instrument, a temperature self-adaptive detection method and a temperature self-adaptive detection device.
Background
In some beauty instruments for detecting skin temperature through a thermistor, a skin safety temperature threshold is set to prevent scalding, when the skin temperature rises to the skin safety temperature threshold, corresponding measures are taken to avoid the skin temperature from rising continuously, but when the heat output device outputs heat, the output heat is transmitted to the skin on one hand, and is transmitted to the thermistor through the medium on the other hand, when the temperature of the surface of the heat output device is balanced with the temperature of the skin, a period of time is required for the temperature of the surface of the heat output device to reach the equilibrium with the temperature detected by the thermistor, which can lead to the condition that the temperature detected by the thermistor does not exceed the skin safety temperature threshold when the temperature of the contact surface of the heat output device and the skin exceeds the skin safety temperature threshold, and scalding is caused.
Disclosure of Invention
Therefore, the application provides a beauty instrument, a temperature self-adaptive detection method and a temperature self-adaptive detection device, so as to solve the technical problems.
The first aspect of the present application provides a temperature adaptive detection method, applied to a beauty instrument, the beauty instrument includes an electrode tip, a thermistor and an electrode sheet, the thermistor and the electrode sheet are both disposed in the electrode tip, and the thermistor is connected with the electrode sheet, the temperature adaptive detection method includes: detecting a first detection temperature by the thermistor; acquiring heat input to skin through the electrode plate, thickness of the electrode plate, heat conductivity coefficient of the electrode plate and area of the electrode plate; determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; and adding the first detection temperature and the compensation temperature to obtain an actual temperature.
The second aspect of the application provides a temperature self-adaptive detection device, which comprises a detection module, an acquisition module, a determination module and an addition module; the detection module detects a first detection temperature through a thermistor; the acquisition module is used for acquiring the heat input into the skin through the electrode plate, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; the determining module is used for determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; the adding module is used for adding the first detection temperature and the compensation temperature to obtain an actual temperature.
The third aspect of the application provides a beauty instrument, which comprises a processor, an electrode head, a thermistor and an electrode plate, wherein the thermistor and the electrode plate are arranged in the electrode head, and the thermistor is connected with the electrode plate; the processor is used for detecting a first detection temperature through the thermistor and acquiring heat input into skin through the electrode plate, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; and determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate, and adding the first detection temperature and the compensation temperature to obtain an actual temperature.
A fourth aspect of the present application provides a computer readable storage medium having a computer program stored therein for executing the aforementioned temperature adaptive detection method after being called by a processor.
According to the application, the compensation temperature is determined at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate, and the first detection temperature detected by the thermistor is added with the compensation temperature to obtain the actual temperature, so that the actual temperature can be closer to the surface temperature of the electrode plate, and when the surface temperature of the electrode plate exceeds the skin safety temperature threshold, the condition that the temperature detected by the thermistor exceeds the skin safety temperature threshold occurs, thereby avoiding scalding accidents caused by insufficient sensitivity of the temperature detection of the thermistor.
Drawings
In order to more clearly illustrate the technical solutions of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electrode tip of a cosmetic apparatus according to some embodiments of the present application;
FIG. 2 is a schematic cross-sectional view of FIG. 1 taken along the direction A-A;
FIG. 3 is a flow chart of a temperature adaptive detection method according to some embodiments of the present application;
FIG. 4 is a schematic diagram of a circuit for detecting a first temperature according to some embodiments of the present application;
fig. 5 is a block diagram of a temperature adaptive detection device according to some embodiments of the present application.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without any inventive effort, are intended to be within the scope of the application.
In the description of the present application, unless explicitly stated and limited otherwise, the term "coupled" is to be interpreted broadly, as for example, whether fixedly coupled, detachably coupled, or integrally coupled; can be directly connected, can also be indirectly connected through an intermediate medium, and can also be the communication between the two elements; may be a communication connection; may be an electrical connection. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1 to 3, fig. 1 is a schematic structural diagram of an electrode tip of a cosmetic apparatus according to some embodiments of the present application; FIG. 2 is a schematic cross-sectional view of FIG. 1 taken along the direction A-A; fig. 3 is a flowchart of a temperature adaptive detection method according to some embodiments of the present application.
As shown in fig. 1 and 2, the temperature adaptive detection method is applied to a beauty instrument 100, the beauty instrument 100 includes an electrode tip 10, a thermistor 20 and an electrode sheet 30, the thermistor 20 and the electrode sheet 30 are both disposed in the electrode tip 10, and the thermistor 20 is connected with the electrode sheet 30. The electrode tip 10 comprises a housing 11, a plurality of through holes 12 are formed in the housing 11, and the electrode plates 30 are embedded in the through holes 12.
Wherein the electrode sheet 30 refers to a sheet-shaped region of the electrode column 40 for contact with skin, at least part of the electrode column 40 is a hollow column in which the thermistor 20 is disposed.
In some embodiments, the thermal conductive material 50 may be filled between the electrode sheet 30 and the thermistor 20 to enhance the thermal conductive effect between the electrode sheet 30 and the thermistor 20, because the thermal conductive effect between the thermistor 20 and the electrode sheet 30 is poor due to the incomplete bonding between the electrode sheet 30 and the thermistor 20, wherein the thermal conductive material 50 may be any electrically insulating thermal conductive material, including but not limited to silica gel, etc.
When the beauty apparatus 100 outputs an electric current to the skin through the electrode sheet 30, the skin generates heat as a bio-resistor, and further conducts heat to the surface of the electrode sheet 30, and further conducts heat to the electrode tip 10, the heat conductive material 50 and the thermistor 20. Thus, there is a delay in the conduction of heat from the surface of the electrode sheet 30 to the thermistor 20, which may result in the thermistor 20 not being able to timely detect the temperature of the surface of the electrode sheet 30.
As shown in fig. 3, in some embodiments, the temperature adaptive detection method includes:
s101: the first detected temperature is detected by the thermistor 20.
S102: the heat input to the skin through the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30 are obtained.
S103: the compensation temperature is determined based on at least the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30.
S104: and adding the first detection temperature and the compensation temperature to obtain an actual temperature.
According to the application, the compensation temperature is determined at least according to the heat input to the skin by the electrode plate 30, the thickness of the electrode plate 30, the heat conductivity coefficient of the electrode plate 30 and the area of the electrode plate 30, and the first detection temperature detected by the thermistor 20 is added with the compensation temperature to obtain the actual temperature, so that the actual temperature can be closer to the surface temperature of the electrode plate 30, and when the surface temperature of the electrode plate 30 exceeds the skin safety temperature threshold, the condition that the temperature detected by the thermistor 20 exceeds the skin safety temperature threshold occurs, thereby avoiding the occurrence of scalding accidents caused by insufficient sensitivity of the temperature detection of the thermistor 20.
It should be noted that the temperature adaptive detection method is not limited to the sequence of the steps in fig. 1, and may be increased or decreased or sequentially adjusted according to actual needs, which is not limited herein.
Referring to fig. 4, fig. 4 is a schematic diagram of a circuit structure for detecting a first detection temperature according to some embodiments of the application.
As shown in fig. 4, the detection of the first detection temperature by the thermistor 20 in step S101 may refer to that, in the circuit in which the thermistor 20 and the resistor 21 with a fixed resistance are connected in series between a voltage terminal VCC and the ground GND, the voltage terminal VCC outputs a fixed voltage, and since the resistance of the thermistor 20 changes with the change of temperature, the voltage across the thermistor 20 also changes with the change of the resistance of the thermistor 20, the current in the circuit in which the thermistor 20 and the resistor 21 with a fixed resistance are connected in series may be obtained by detecting the connection node between the thermistor 20 and the resistor with a fixed resistance, that is, the voltage across the thermistor 20 and the current, and then the resistance of the thermistor 20 may be calculated. For example, if the fixed voltage is V1, the fixed resistance is R1, and the detected voltage at the remote end of the thermistor 20 is V2, the current i= (V1-V2)/R1 in the circuit in which the thermistor 20 is connected in series with the resistor of the fixed resistance can be calculated, and then the resistance r2=v2×r1/(V1-V2) of the thermistor 20 can be calculated. Wherein the thermistor 20 generally has a temperature characteristic coefficient, and then the first detected temperature can be determined based on the resistance value of the thermistor 20 and the temperature characteristic coefficient (describing a rate of change of the resistance value of the thermistor 20 under a temperature change).
That is, in some embodiments, the step S101 may include: acquiring the current voltage of the remote end of the thermistor 20; the current resistance of the thermistor 20 is calculated according to the voltage of the remote end of the thermistor 20, the fixed resistance and the fixed voltage, and the current first detection temperature is determined according to the resistance of the thermistor 20 and the temperature characteristic coefficient.
Specifically, the first detection temperature T may be calculated according To the formula rt=ro×exp { b× (1/T-1/To) }, where Rt is a resistance value at the first detection temperature T, ro is a resistance value at a reference temperature To (e.g., 25 ℃) and B is a temperature characteristic coefficient.
In some embodiments, the determining the compensation temperature based at least on the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30 includes:
the compensation temperature is determined according to Δt=q×l/(λ×s), where Δt is the compensation temperature, Q is the heat of the input skin, L is the thickness of the electrode sheet 30, λ is the thermal conductivity of the electrode sheet 30, and S is the area of the electrode sheet 30.
Wherein, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30 may be stored in the memory in advance, and the thickness of the electrode sheet 30 refers to the thickness from the skin facing side of the electrode sheet 30 to the thermistor 20 facing side of the electrode sheet 30. The thermal conductivity of the electrode sheet 30 is determined based on the material of the electrode sheet 30, and the material of the electrode sheet 30 may be, but is not limited to, copper, aluminum, steel, silicon, carbon material, and the like.
In other embodiments, a heat conductive material 50 is further filled between the thermistor 20 and the electrode sheet 30; the determining the compensation temperature according to at least the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30 includes:
the compensation temperature is determined according to the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the thermal conductive material 50, and the area of the electrode sheet 30.
Taking both the electrode sheet 30 and the heat conductive material 50 into consideration, the sum of the compensation temperature and the first detected temperature detected by the thermistor 20 can be made closer to the actual temperature of the surface of the electrode sheet 30.
In other embodiments, the determining the compensation temperature according to the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the thermal conductive material 50, and the area of the electrode sheet 30 includes:
the compensation temperature is determined according to Δt=q× (l1+l2)/{ (k1×λ1+k2×λ2) ×s } where Δt is the compensation temperature, Q is the heat of the input skin, L1 is the thickness of the electrode sheet 30, L2 is the thickness of the heat conductive material 50, λ1 is the heat conductivity of the electrode sheet 30, λ2 is the heat conductivity of the heat conductive material 50, k1 is a first constant, k2 is a second constant, and S is the area of the electrode sheet 30.
Wherein the thickness of the electrode sheet 30, the thickness of the heat conductive material 50, the heat conductivity coefficient of the electrode sheet 30, the heat conductivity coefficient of the heat conductive material 50, the first constant, the second constant, and the area of the electrode sheet 30 may be stored in the memory in advance, and k1 and k2 may be determined based on the thickness and material characteristics of the electrode sheet 30 and the thickness and material characteristics of the heat conductive material 50, k1+k2=1, and when the thickness of the electrode sheet 30 is thicker, k1 is larger; when the thickness of the heat conductive material 50 is thicker, k2 is larger.
In some embodiments, the capturing of heat input to the skin through the electrode sheet 30 includes:
acquiring the output power of the electrode sheet 30, the output time of the electrode sheet 30 and the loss factor of the electrode sheet 30 output to the skin;
the heat input to the skin through the electrode sheet 30 is calculated according to the output power of the electrode sheet 30, the output time of the electrode sheet 30 and the loss factor of the electrode sheet 30 output to the skin.
In some embodiments, the calculating the heat input to the skin through the electrode pad 30 according to the output power of the electrode pad 30, the output time of the electrode pad 30, and the loss factor of the electrode pad 30 output to the skin includes:
calculating to obtain Q according to Q=theta×P×t; wherein Q is the heat input to the skin by the electrode sheet 30, P is the output power of the electrode sheet 30, θ is the loss factor of the electrode sheet 30 output to the skin, and t is the output time of the electrode sheet 30.
In some embodiments, the temperature adaptive detection method further comprises:
determining a loss factor of the electrode sheet 30 output to the skin based on the skin impedance, the conductivity of the skin care product, the specific heat capacity of the skin care product, the contact area of the electrode sheet 30 with the skin, and the spacing between the electrode sheets 30; wherein, the electrode plate 30 is a plurality of.
The conductivity and the specific heat capacity of various skin care products can be pre-stored in a memory, and the conductivity and the specific heat capacity of the current skin care products needed to be used for calculating the loss factors are determined based on the types of the skin care products selected by a user; detection of the contact area of the electrode pad 30 with the skin can be determined by providing a plurality of distance sensors in the electrode pad 10; the spacing between electrode pads 30 may be stored in memory after measurement; the skin impedance may be determined by impedance measurement (outputting a multi-frequency current to the skin and measuring the current and voltage through the skin to calculate the impedance value of the skin), bioelectrical impedance analysis (calculating the skin impedance by applying a weak current to the skin and measuring the resistance and reactance through body tissue), and the like.
In some embodiments, the temperature adaptive detection method further comprises:
the electrode tip 10 is placed in at least one constant temperature environment, and a second detected temperature of the thermistor 20 detected in each constant temperature environment is obtained.
And judging whether the difference between the second detection temperature and the temperature of the corresponding constant temperature environment is smaller than a preset temperature difference or not.
And when the difference between the second detected temperature and the temperature of the corresponding constant temperature environment is smaller than the preset temperature difference, acquiring a plurality of resistance values of the thermistor 20 in the corresponding constant temperature environment.
A calibration resistance value is determined based on the plurality of resistance values.
A calibration temperature characteristic coefficient of the thermistor 20 at least one temperature is determined for detection of the first detected temperature based on the temperature of the corresponding constant temperature environment and the calibration resistance value.
By calibrating the thermistor 20, the accuracy of the detection of the thermistor 20 is improved.
In some of these embodiments, the determining a calibration resistance value based on the plurality of resistance values includes:
removing the maximum resistance value and the minimum resistance value in the plurality of resistance values;
and determining the average value of the residual resistance values as the calibration resistance value.
Because random errors may exist in the measurement process, the influence caused by the random errors can be reduced by removing the maximum resistance value and the minimum resistance value in the plurality of resistance values, meanwhile, the resistance values of the thermistor 20 at different temperatures usually show a nonlinear relationship, so that a wider resistance range needs to be considered in the calibration process, different resistance values in a target range can be better covered by removing the maximum resistance value and the minimum resistance value, and the calibration applicability and accuracy are improved.
In some embodiments, the temperature adaptive detection method further comprises:
judging whether the actual temperature is equal to or greater than a preset skin safety temperature;
when the actual temperature is equal to or greater than a preset skin safety temperature, the output of the prompt message is controlled, or the output power of the electrode plate 30 is controlled to be reduced.
Thereby avoiding scalding accidents caused by the fact that the actual temperature is equal to or higher than the preset skin safety temperature.
The prompt information can be output through modes such as voice prompt, display screen display and vibration. Specifically, a voice prompt or a display screen can be used for displaying that the current temperature is too high.
Referring to fig. 5, fig. 5 is a block diagram illustrating a temperature adaptive detection apparatus according to some embodiments of the present application.
As shown in fig. 5, in some embodiments, the temperature adaptive detection apparatus 200 includes a detection module 201, an acquisition module 202, a determination module 203, and an addition module 204; the detection module 201 detects a first detection temperature through the thermistor 20; the acquisition module 202 is used for acquiring heat input to the skin through the electrode sheet 30, the thickness of the electrode sheet 30, the heat conductivity coefficient of the electrode sheet 30 and the area of the electrode sheet 30; the determining module 203 is configured to determine a compensation temperature according to at least the heat input to the skin by the electrode sheet 30, the thickness of the electrode sheet 30, the thermal conductivity of the electrode sheet 30, and the area of the electrode sheet 30; the adding module 204 is configured to add the first detected temperature and the compensated temperature to obtain an actual temperature.
In the present application, the determining module 203 determines the compensation temperature at least according to the heat input to the skin by the electrode pad 30, the thickness of the electrode pad 30, the thermal conductivity of the electrode pad 30, and the area of the electrode pad 30, which are obtained by the obtaining module 202, and the adding module 204 adds the first detection temperature detected by the detecting module 201 through the thermistor 20 to the compensation temperature to obtain the actual temperature, so that the actual temperature may be closer to the surface temperature of the electrode pad 30, and when the surface temperature of the electrode pad 30 exceeds the skin safety temperature threshold, the temperature detected by the thermistor 20 also exceeds the skin safety temperature threshold, thereby avoiding the scald accident caused by insufficient sensitivity of the temperature detection of the thermistor 20.
As mentioned above, the thermistor 20 and a resistor 21 with a fixed resistance are connected in series between a voltage end VCC and the ground GND, the voltage end VCC outputs a fixed voltage, and since the resistance of the thermistor 20 changes with the change of temperature, the voltage at two ends of the thermistor 20 also changes with the change of the resistance of the thermistor 20, the detection module 201 may be connected to the remote end of the thermistor 20, and by detecting the connection node between the thermistor 20 and the resistor with a fixed resistance, that is, the voltage at the remote end of the thermistor 20, the current in the circuit of the thermistor 20 and the resistor 21 with a fixed resistance connected in series can be obtained, and then the resistance of the thermistor 20 can be calculated according to the voltage at two ends of the thermistor 20 and the current. For example, if the fixed voltage is V1, the fixed resistance is R1, and the detected voltage at the remote end of the thermistor 20 is V2, the current i= (V1-V2)/R1 in the circuit in which the thermistor 20 is connected in series with the resistor of the fixed resistance can be calculated, and then the resistance r2=v2×r1/(V1-V2) of the thermistor 20 can be calculated. Wherein the thermistor 20 generally has a temperature characteristic coefficient, and then the first detected temperature can be determined based on the resistance value of the thermistor 20 and the temperature characteristic coefficient (describing a rate of change of the resistance value of the thermistor 20 under a temperature change).
The detection module 201, the acquisition module 202, the determination module 203, and the addition module 204 may be software program modules that are solidified in a processor (such as the processor 60 in fig. 2), or may be hardware units in the processor.
As shown in fig. 2, in some embodiments, the beauty apparatus 100 includes a processor 60, an electrode tip 10, a thermistor 20, and an electrode pad 30, wherein the thermistor 20 and the electrode pad 30 are both disposed in the electrode tip 10, and the thermistor 20 is connected to the electrode pad 30; the processor 60 is connected to the thermistor 20. The processor 60 is configured to detect a first detected temperature by the thermistor 20 and acquire heat input to the skin through the electrode sheet 30, a thickness of the electrode sheet 30, a thermal conductivity of the electrode sheet 30, and an area of the electrode sheet 30; and determining a compensation temperature at least according to the heat input by the electrode sheet 30 to the skin, the thickness of the electrode sheet 30, the heat conductivity coefficient of the electrode sheet 30 and the area of the electrode sheet 30, and adding the first detection temperature and the compensation temperature to obtain an actual temperature.
In the present application, the processor 60 determines the compensation temperature at least according to the heat input to the skin by the electrode pad 30, the thickness of the electrode pad 30, the thermal conductivity of the electrode pad 30, and the area of the electrode pad 30, and adds the first detected temperature detected by the thermistor 20 to the compensation temperature to obtain the actual temperature, so that the actual temperature may be closer to the surface temperature of the electrode pad 30, and when the surface temperature of the electrode pad 30 exceeds the skin safety temperature threshold, the temperature detected by the thermistor 20 also exceeds the skin safety temperature threshold, thereby avoiding the occurrence of a scald accident caused by insufficient sensitivity of the temperature detection of the thermistor 20.
Some embodiments of the present application further provide a computer readable storage medium, where a computer program is stored in the computer readable storage medium, where the computer program is used to execute the temperature adaptive detection method provided in any one of the foregoing embodiments after the processor invokes the computer program.
Those of ordinary skill in the art will appreciate that all or a portion of the steps in the various methods of the above embodiments may be implemented by a program that instructs associated hardware, and the program may be stored in a computer readable memory, which may include: flash disk, read-only memory, random access memory, magnetic or optical disk, etc.
The foregoing is a description of embodiments of the present application, and it should be noted that, for those skilled in the art, modifications and variations can be made without departing from the principles of the embodiments of the present application, and such modifications and variations are also considered to be within the scope of the present application.
Claims (9)
1. A computer readable storage medium, wherein a computer program is stored in the computer readable storage medium, the computer program is used for executing a temperature self-adaptive detection method after being called by a processor, the temperature self-adaptive detection method is applied to a beauty instrument, the beauty instrument comprises an electrode head, a thermistor and an electrode plate, the thermistor and the electrode plate are both arranged in the electrode head, and the thermistor is connected with the electrode plate, and the temperature self-adaptive detection method is characterized by comprising the following steps:
detecting a first detection temperature by the thermistor;
acquiring heat input to skin through the electrode plate, thickness of the electrode plate, heat conductivity coefficient of the electrode plate and area of the electrode plate;
determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate;
adding the first detection temperature and the compensation temperature to obtain an actual temperature;
the method for determining the compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate comprises the following steps:
determining a compensation temperature according to Δt=q×l/(λ×s), wherein Δt is the compensation temperature, Q is the heat of the input skin, L is the thickness of the electrode sheet, λ is the thermal conductivity of the electrode sheet, and S is the area of the electrode sheet;
the acquiring of the heat input to the skin through the electrode sheet comprises:
acquiring the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin;
and calculating according to the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin to obtain the heat input into the skin through the electrode plate.
2. The computer readable storage medium of claim 1, wherein a thermally conductive material is further filled between the thermistor and the electrode pads; the method for determining the compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate comprises the following steps:
and determining the compensation temperature according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the heat conducting material and the area of the electrode plate.
3. The computer readable storage medium of claim 2, wherein the determining the compensation temperature based on the heat input to the skin by the electrode sheet, the thickness of the electrode sheet, the thermal conductivity of the thermally conductive material, and the area of the electrode sheet comprises:
determining a compensation temperature according to Δt=q× (l1+l2)/{ (k1×λ1+k2×λ2) ×s } where Δt is the compensation temperature, Q is the heat of the input skin, L1 is the thickness of the electrode sheet, L2 is the thickness of the heat conductive material, λ1 is the heat conductivity of the electrode sheet, λ2 is the heat conductivity of the heat conductive material, k1 is a first constant, k2 is a second constant, and S is the area of the electrode sheet.
4. The computer-readable storage medium of claim 1, wherein the temperature adaptive detection method further comprises:
determining a loss factor of the electrode sheet output to the skin based on skin impedance, conductivity of the skin care product, specific heat capacity of the skin care product, contact area of the electrode sheet and the skin, and a distance between the electrode sheets; wherein, the electrode slice is a plurality of.
5. The computer-readable storage medium of claim 1, wherein the temperature adaptive detection method further comprises:
placing the electrode head in at least one constant temperature environment, and obtaining a second detection temperature detected by the thermistor in each constant temperature environment;
judging whether the difference between the second detected temperature and the temperature of the corresponding constant temperature environment is smaller than a preset temperature difference value or not;
when the difference between the second detected temperature and the temperature of the corresponding constant temperature environment is smaller than the preset temperature difference, a plurality of resistance values of the thermistor in the corresponding constant temperature environment are obtained;
determining a calibration resistance value based on the plurality of resistance values;
and determining a calibration temperature characteristic coefficient of the thermistor at least one temperature based on the temperature of the corresponding constant-temperature environment and the calibration resistance value for detecting the first detection temperature.
6. The computer readable storage medium of claim 5, wherein the determining a calibration resistance value based on the plurality of resistance values comprises:
removing the maximum resistance value and the minimum resistance value in the plurality of resistance values;
and determining the average value of the residual resistance values as the calibration resistance value.
7. The computer-readable storage medium of claim 1, wherein the temperature adaptive detection method further comprises:
judging whether the actual temperature is equal to or greater than a preset skin safety temperature;
and when the actual temperature is equal to or greater than the preset skin safety temperature, controlling to output prompt information or controlling to reduce the output power of the electrode plate.
8. A temperature-adaptive detection device, comprising:
the detection module is used for detecting a first detection temperature through the thermistor;
the acquisition module is used for acquiring the heat input to the skin through the electrode plate, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate, wherein the acquisition of the heat input to the skin through the electrode plate comprises the following steps: acquiring the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin; calculating according to the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin to obtain the heat input into the skin through the electrode plate;
the determining module is used for determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; wherein, the determining the compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity of the electrode plate and the area of the electrode plate comprises: determining a compensation temperature according to Δt=q×l/(λ×s), wherein Δt is the compensation temperature, Q is the heat of the input skin, L is the thickness of the electrode sheet, λ is the thermal conductivity of the electrode sheet, and S is the area of the electrode sheet;
and the adding module is used for adding the first detection temperature and the compensation temperature to obtain an actual temperature.
9. The beauty instrument is characterized by comprising a processor, an electrode head, a thermistor and an electrode plate, wherein the thermistor and the electrode plate are arranged in the electrode head, and the thermistor is connected with the electrode plate;
the processor is used for detecting a first detection temperature through the thermistor and acquiring heat input into skin through the electrode plate, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate; determining a compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity coefficient of the electrode plate and the area of the electrode plate, and adding the first detection temperature and the compensation temperature to obtain an actual temperature; wherein, the determining the compensation temperature at least according to the heat input by the electrode plate to the skin, the thickness of the electrode plate, the heat conductivity of the electrode plate and the area of the electrode plate comprises: determining a compensation temperature according to Δt=q×l/(λ×s), wherein Δt is the compensation temperature, Q is the heat of the input skin, L is the thickness of the electrode sheet, λ is the thermal conductivity of the electrode sheet, and S is the area of the electrode sheet; wherein the acquiring of the heat input to the skin through the electrode sheet comprises: acquiring the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin; and calculating the heat input into the skin through the electrode plate according to the output power of the electrode plate, the output time of the electrode plate and the loss factor of the electrode plate output to the skin.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN213665698U (en) * | 2020-11-04 | 2021-07-13 | 深圳德技创新实业有限公司 | Radio frequency physiotherapy equipment |
| CN114659674A (en) * | 2022-03-16 | 2022-06-24 | 歌尔股份有限公司 | Temperature measurement function calibration method, system and device, charging base and medium |
| CN219375889U (en) * | 2022-09-16 | 2023-07-21 | 西安拾玖岁信息科技有限公司 | Temperature detection device and radio frequency beauty equipment |
| CN219440440U (en) * | 2023-03-09 | 2023-08-01 | 深圳市宗匠科技有限公司 | Electrode tip and radio frequency instrument |
| CN116531658A (en) * | 2023-07-07 | 2023-08-04 | 深圳半岛医疗有限公司 | Electrode slice energy control method, device, equipment and medium |
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| EP2720612B1 (en) * | 2011-06-16 | 2019-02-06 | Abbott Diabetes Care, Inc. | Temperature-compensated analyte monitoring devices, systems, and methods thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN213665698U (en) * | 2020-11-04 | 2021-07-13 | 深圳德技创新实业有限公司 | Radio frequency physiotherapy equipment |
| CN114659674A (en) * | 2022-03-16 | 2022-06-24 | 歌尔股份有限公司 | Temperature measurement function calibration method, system and device, charging base and medium |
| CN219375889U (en) * | 2022-09-16 | 2023-07-21 | 西安拾玖岁信息科技有限公司 | Temperature detection device and radio frequency beauty equipment |
| CN219440440U (en) * | 2023-03-09 | 2023-08-01 | 深圳市宗匠科技有限公司 | Electrode tip and radio frequency instrument |
| CN116531658A (en) * | 2023-07-07 | 2023-08-04 | 深圳半岛医疗有限公司 | Electrode slice energy control method, device, equipment and medium |
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