WO2023207317A1 - 测温装置及方法、计算机设备及存储介质 - Google Patents
测温装置及方法、计算机设备及存储介质 Download PDFInfo
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- WO2023207317A1 WO2023207317A1 PCT/CN2023/078952 CN2023078952W WO2023207317A1 WO 2023207317 A1 WO2023207317 A1 WO 2023207317A1 CN 2023078952 W CN2023078952 W CN 2023078952W WO 2023207317 A1 WO2023207317 A1 WO 2023207317A1
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- Prior art keywords
- oscillation circuit
- sensor
- inductor
- temperature
- electrical parameters
- Prior art date
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 50
- 238000000034 method Methods 0.000 title claims abstract description 42
- 230000010355 oscillation Effects 0.000 claims abstract description 191
- 239000003990 capacitor Substances 0.000 claims description 69
- 238000012544 monitoring process Methods 0.000 claims description 26
- 238000004590 computer program Methods 0.000 claims description 18
- 239000003302 ferromagnetic material Substances 0.000 claims description 15
- 230000008859 change Effects 0.000 description 34
- 230000005291 magnetic effect Effects 0.000 description 33
- 230000035699 permeability Effects 0.000 description 23
- 238000010586 diagram Methods 0.000 description 14
- 230000004907 flux Effects 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 239000000443 aerosol Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 230000000875 corresponding effect Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000002596 correlated effect Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000000696 magnetic material Substances 0.000 description 3
- 230000001808 coupling effect Effects 0.000 description 2
- 238000000611 regression analysis Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000008275 solid aerosol Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
- A24F40/53—Monitoring, e.g. fault detection
Definitions
- the present application relates to the field of temperature measurement, and in particular to a temperature measurement device and method, computer equipment and storage medium.
- Heat-not-burn atomization devices are becoming more and more popular among consumers. Heat-not-burn atomization devices bake a solid aerosol matrix at low temperature to generate aerosol for users to inhale, and are controlled by sophisticated electronic chips. The heating temperature is such that the aerosol produced by the heated-not-burn atomizer contains the desired components.
- a temperature measurement device including: a sensor, an oscillation circuit and a controller; the sensor is coupled to the oscillation circuit, the controller obtains the electrical parameters of the oscillation circuit, and calculates the sensor according to the electrical parameters temperature.
- the electrical parameters include current characteristics of the oscillation circuit.
- the electrical parameters include voltage characteristics of the oscillation circuit.
- the controller obtains the electrical parameter through a monitoring point provided on the oscillation circuit.
- the senor is a ferromagnetic material.
- the oscillation circuit includes a first capacitor and a first inductor, the first capacitor is connected in series with the first inductor, and the sensor is coupled with the first inductor.
- the oscillation circuit includes a first capacitor and a first inductor
- the oscillation circuit includes a first capacitor and a first inductor
- the first capacitor is connected in parallel with the first inductor
- the sensor is connected with The first inductive coupling.
- the device further includes a power supply circuit, and the oscillation circuit is connected to the power supply circuit.
- the power supply circuit includes a second capacitor, a first end of the second capacitor is used to receive electric energy and is connected to the oscillation circuit, and a second end of the second capacitor is connected to ground.
- the temperature measurement device further includes a switch tube, a first end of the switch tube is connected to the power supply circuit or ground, and a second end of the switch tube is connected to the oscillation circuit.
- a temperature measurement method includes:
- the temperature of the sensor is calculated based on the electrical parameters, and the sensor is coupled to an oscillation circuit.
- the electrical parameters include current characteristics of the oscillation circuit.
- the electrical parameters include voltage characteristics of the oscillation circuit.
- a computer device includes a memory and a processor.
- a computer program is stored in the memory.
- the processor executes the computer program, it implements the following steps of the temperature measurement method:
- the temperature of a sensor is calculated based on the electrical parameters, and the sensor is coupled to the oscillation circuit.
- the computer program When executed by a processor, it implements the steps of the following temperature measurement method:
- the temperature of a sensor is calculated based on the electrical parameters, and the sensor is coupled to the oscillation circuit.
- Figure 1 is a schematic structural diagram of a temperature measuring device in one embodiment
- Figure 2 is a schematic diagram of the process in which the magnetic permeability of ferromagnetic materials changes with temperature in one embodiment
- Figure 3 is a circuit schematic diagram of an oscillation circuit in an embodiment
- Figure 4 is a schematic diagram of a circuit for monitoring current characteristics in an oscillation circuit in one embodiment
- Figure 5 is a schematic diagram of a circuit for monitoring voltage characteristics in an oscillation circuit in one embodiment
- Figure 6 is a schematic structural diagram of a temperature measuring device in another embodiment
- FIG. 7 is a detailed circuit schematic diagram of the oscillation circuit in one embodiment
- FIG. 8 is a detailed circuit diagram of an oscillation circuit in another embodiment
- FIG. 9 is a detailed circuit schematic diagram of the power supply circuit in one embodiment
- FIG. 10 is a detailed circuit schematic diagram of the temperature measurement device in one embodiment
- Figure 11 is a schematic flow chart of a temperature measurement method in one embodiment
- Figure 12 is an internal structure diagram of a computer device in one embodiment
- Figure 13 is a schematic circuit diagram of a temperature measuring device in another embodiment.
- connection in the following embodiments should be understood as “electrical connection”, “communication connection”, etc. if there is transmission of electrical signals or data between the connected objects.
- the temperature measurement method for heating elements is mainly to install a temperature sensor on the aerosol generating device and connect it to the circuit. This method cannot completely separate the heating element and the circuit, and the circuit is complex and has great consequences. limitations.
- the temperature measurement device and method provided by this application can measure temperature when the sensor and oscillation circuit are separated.
- the circuit is simple and suitable for application scenarios such as temperature measurement of aerosol generating devices or other devices.
- the present application provides a temperature measurement device, including: a sensor 100, an oscillation circuit 200, and a controller 300.
- the sensor 100 is coupled to the oscillation circuit 200.
- the controller 300 obtains the electrical parameters of the oscillation circuit 200 and generates them according to Electrical parameter calculation experience The temperature of the device 100.
- the above temperature measurement device is based on the coupling effect of the sensor and the oscillation circuit. By obtaining the electrical parameters of the oscillation circuit, the state change of the sensor can be obtained, and then the temperature of the sensor can be obtained.
- the temperature measurement can be carried out when the sensor and the oscillation circuit are separated, and the circuit is simple. , easy to implement, and at the same time, due to the non-contact temperature measurement method, the temperature measurement has stronger applicability and fewer restrictions.
- the sensor 100 is coupled with the oscillation circuit 200 .
- Coupled connection that is, the sensor 100 and the oscillation circuit 200 are not directly connected, but when the parameters of one of the sensor 100 and the oscillation circuit 200 change, the parameters of the other will also change accordingly. This is also the reason why the oscillation circuit 200 and the sensor 100 The principle of non-contact temperature measurement.
- the composition of the oscillation circuit 200 is not unique.
- the oscillation circuit 200 needs to include a capacitor and an inductor coil.
- the capacitor and the inductor coil can be connected in series or in parallel. It can be understood that , the connection method between the capacitor and the inductor coil can be selected by those skilled in the art according to actual needs.
- the capacitor inside the oscillation circuit 200 is charged. After the capacitor is charged, it is discharged. At this time, the current flowing through the inductor coil is reversed and the inductor coil is charged. When the voltage of the inductor coil reaches the maximum, the capacitor is discharged, the inductor coil begins to discharge, and the capacitor begins to charge. The cycle repeats, the oscillation circuit 200 begins to oscillate, and an alternating current is generated in the oscillation circuit 200.
- Susceptor 100 is typically made of magnetic material.
- the magnetic permeability of the sensor 100 will also change accordingly. That is, the magnetic permeability of the sensor 100 can represent the temperature of the sensor 100 .
- the change in the magnetic permeability of the sensor 100 causes the mutual inductance value between the sensor 100 and the oscillation circuit 200 to change.
- the change in the mutual inductance value causes the equivalent self-inductance of the inductor coil in the oscillation circuit 200.
- the value changes, which in turn causes the electrical parameters in the oscillation circuit 200 to change.
- the controller 300 obtains the electrical parameters of the oscillation circuit 200, and the controller 300 calculates the temperature of the sensor based on the electrical parameters.
- the controller 300 may include an MCU (Micro Control Unit) unit and an A/D sampling unit.
- MCU Micro Control Unit
- A/D sampling unit A/D sampling unit
- the controller 300 can also be implemented using other units with corresponding functions and their peripheral circuits.
- the method by which the controller 300 obtains the electrical parameters of the oscillation circuit 200 is not unique.
- the controller 300 is connected to the oscillation circuit 200 , and the controller 300 obtains electrical parameters by setting monitoring points on the oscillation circuit 200 .
- the controller 300 can also obtain the electrical parameters of the oscillation circuit 200 through wireless means. Those skilled in the art can select a method of obtaining the electrical parameters of the oscillation circuit 200 according to actual conditions.
- the controller 300 implements temperature measurement by monitoring the electrical parameters of the oscillation circuit 200 .
- the selection of electrical parameters is not unique. It can be the voltage characteristics, current characteristics or frequency characteristics of the monitoring point.
- the choice of monitoring points is not unique either. For example, monitoring points can be set at both ends of the inductor coil to obtain the voltage value across the inductor coil, and monitoring points can be set up at both ends of the capacitor to obtain the voltage value across the capacitor. It can be understood that those skilled in the art can also select other electrical parameters and monitoring points, as long as those skilled in the art deem achievable.
- the way the controller 300 implements temperature measurement based on the obtained electrical parameters is also not unique.
- an artificial intelligence algorithm module is provided inside the controller 300 to learn the relationship between the historical electrical parameters of the oscillation circuit 200 and the historical temperature of the sensor 100 to obtain a prediction model.
- the controller 300 inputs the obtained current electrical parameters into the prediction model to obtain the prediction result of the temperature of the sensor 100. In this way, the degree of automation can be greatly improved.
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first end of the first capacitor 210 is connected to the first end of the first inductor 220 .
- the second end of the first capacitor 210 is connected to the first end of the first capacitor 210 .
- the oscillation circuit 200 is connected to the external current I to operate, and the sensor 100 and the oscillation circuit 200 generate mutual inductance.
- the equivalent self-inductance value of the oscillation circuit 200 also changes accordingly, and the corresponding electrical parameters inside the oscillation circuit 200 also change.
- the voltage characteristic is selected as the monitoring value, and monitoring points are respectively set at both ends of the first inductor 220.
- the controller 300 obtains the voltage value at each monitoring point within a period of time, and obtains it through table lookup or regression fitting.
- the temperature of the sensor 100 is selected as the monitoring value, and monitoring points are respectively set at both ends of the first inductor 220.
- the electrical parameters include current characteristics of the oscillator circuit 200 .
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first end of the first capacitor 210 is connected to the first end of the first inductor 220 .
- the second end of the first capacitor 210 is connected to the first end of the first inductor 220 .
- the terminal is connected to the second terminal of the first inductor 220 .
- the oscillation circuit 200 is connected to an external current I to operate, the sensor 100 and the oscillation circuit 200 generate mutual inductance, and an eddy current is generated inside the sensor 100 .
- the magnetic permeability of the sensor 100 changes accordingly, and then the mutual inductance value between the sensor 100 and the oscillation circuit 200 changes. This part of the mutual inductance value is superimposed with the self-inductance value of the oscillation circuit 200, resulting in an oscillation circuit.
- the equivalent self-inductance value of the inductor coil changes within 200. See formula (1),
- L is the equivalent self-inductance value of the oscillation circuit 200
- i L (t) is a function of the change of the current value I flowing through the first inductor 220 with time t
- u L (t) is the voltage across the first inductor 220
- the value U changes as a function of time t. Equation (1) indicates that the equivalent self-inductance value of the oscillation circuit 200 is directly proportional to the voltage on the first inductor 220 in the oscillation circuit 200 at a certain time, and inversely proportional to the rate of change of the current flowing through the first inductor 220 at a certain time.
- the current characteristics of the oscillation circuit 200 are The characteristics may include parameters such as the change rate of the current flowing through the first inductor 220 at each time, the amplitude of the current flowing through the first inductor 220 or the effective value of the current flowing through the first inductor 220 within a period of time.
- the controller 300 sets a monitoring point at one end of the first inductor 220 to obtain the current value I1 flowing through the first inductor 220 in the oscillation circuit 200 within a period of time.
- the current value I1 flowing through the first inductor 220 at each time can be obtained.
- the change rate of the current value I1 of the first inductor 220 .
- the controller 300 obtains the relationship between the change rate of the current value I1 and the temperature data of the sensor 100 by fitting the previously measured change rate of the current value I1 flowing through the first inductor 220 at each time in the multiple sets of oscillator circuits 200 and the temperature data of the sensor 100 . 100% relationship between temperatures, thereby achieving temperature measurement.
- the controller 300 can also obtain the current value I2 flowing through the entire oscillator circuit 200 within a period of time, calculate the current value I1 flowing through the first inductor 220 based on the current value I2, and repeat the aforementioned operations to implement temperature measurement.
- the electrical parameters include voltage characteristics of the oscillator circuit 200 .
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first end of the first capacitor 210 is connected to the first end of the first inductor 220 .
- the second end of the first capacitor 210 is connected to the first end of the first inductor 220 .
- the terminal is connected to the second terminal of the first inductor 220 .
- the oscillation circuit 200 is connected to an external current I to operate, the sensor 100 and the oscillation circuit 200 generate mutual inductance, and an eddy current is generated inside the sensor 100 .
- the magnetic permeability of the sensor 100 changes accordingly, and then the mutual inductance value between the sensor 100 and the oscillation circuit 200 changes.
- the equivalent self-inductance value L of the oscillation circuit 200 is proportional to the voltage on the first inductor 220 in the oscillation circuit 200 at a certain moment, and is proportional to the change rate of the current flowing through the first inductor 220 at a certain moment. Inversely proportional. That is to say, any change in the equivalent self-inductance value L in the oscillation circuit 200 will be reflected in the voltage on the first inductor 220 at a certain moment in the oscillation circuit 200.
- the voltage characteristics of the oscillation circuit 200 may include the voltage characteristics of each moment in the oscillation circuit 200. Parameters include the voltage on the first inductor 220 at a time, the amplitude of the voltage on the first inductor 220 or the effective value of the voltage on the first inductor 220 within a period of time.
- the controller 300 sets monitoring points at both ends of the first inductor 220 or the first capacitor 210 to obtain the voltage of the first inductor 220 at each moment in the oscillation circuit 200 within a period of time. U1.
- the controller 300 fits the voltage U1 of the first inductor 220 and the temperature data of the sensor 100 at each time in the multiple sets of oscillation circuits 200 measured in the past, and obtains the relationship between the voltage value U1 and the temperature of the sensor 100, thereby Realize temperature measurement.
- the senor 100 is a ferromagnetic material.
- the sensor 100 is made of ferromagnetic material, that is, the sensor 100 is made of ferromagnetic material.
- the magnetic permeability of the ferromagnetic material changes with temperature.
- the temperature of the ferromagnetic material is much lower than the Curie temperature Tc
- the magnetic permeability of the ferromagnetic material is positively correlated with the temperature for temperature measurement; when the temperature of the ferromagnetic material is around the Curie temperature Tc, at this time
- the magnetic permeability of ferromagnetic materials is used to characterize the temperature of ferromagnetic materials. Furthermore, the magnetic permeability of ferromagnetic materials changes greatly with temperature. By using ferromagnetic materials as the sensor 100, the measurement results will be more intuitive. It can be understood that the sensor 100 can also be made of other magnetic materials. The trend of the magnetic permeability of other magnetic materials changing with temperature is not necessarily the same as shown in Figure 2. Those skilled in the art can select the specific type of the sensor 100 according to actual needs.
- the temperature measurement device further includes a power supply circuit 400 , and the oscillation circuit 200 is connected to the power supply circuit 400 .
- the power supply circuit 400 is used to provide voltage to the oscillation circuit 200 so that the oscillation circuit 200 generates alternating current.
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first capacitor 210 and the first inductor 220 are connected in series, and the sensor 100 is coupled with the first inductor 220 .
- the first end of the first capacitor 210 is connected to the first end of the first inductor 220
- the sensor 100 is coupled with the first inductor 220
- the controller 300 can monitor both ends of the first capacitor 210 or the first inductor 220 electrical parameters at both ends.
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first capacitor 210 is connected in parallel with the first inductor 220 , and the sensor 100 is coupled with the first inductor 220 .
- the first terminal of the first capacitor 210 is connected to the first terminal of the first inductor 220
- the second terminal of the first capacitor 210 is connected to the second terminal of the first inductor 220 .
- the controller 300 can monitor whether the first terminal of the first capacitor 210 is connected to the first terminal of the first inductor 220 . Electrical parameters across both ends of the capacitor 210 or the first inductor 220 .
- the power supply circuit 400 further includes a second capacitor 410 , the first end of the second capacitor 410 is connected to the oscillation circuit 200 , and the second end of the second capacitor 410 is connected to ground.
- the power supply circuit 400 includes a second capacitor 410.
- the first end of the second capacitor 410 is connected to the oscillation circuit 200, and the second end of the second capacitor 410 is connected to ground.
- the second capacitor can effectively filter out noise in the power supply circuit. and AC components to avoid self-excitation, stabilize the working state of the power supply circuit, and store electrical energy.
- the temperature measurement device further includes a switch tube 500, the first end of the switch tube 500 is connected to the power supply.
- the circuit 400 may be grounded, and the second end of the switch tube 500 is connected to the oscillation circuit 200 .
- the oscillation circuit 200 includes a first capacitor 210 and a first inductor 220 .
- the first capacitor 210 and the first inductor 220 are connected in parallel, as shown in FIG. 10 , the first end of the switch tube 500 is connected to the ground, and the second end of the switch tube 500 is connected to the oscillation circuit 200 , that is, the first end of the switch tube 500 is connected to the ground.
- a first terminal of a capacitor 210 and a first terminal of a first inductor 220 are connected to the first capacitor 210 and a first terminal of a first inductor 220 .
- the switch tube 500 controls whether the oscillation circuit 200 is connected to the power supply circuit 400 so that the oscillation circuit 200 generates alternating current. Furthermore, the switching tube 500 can also be connected to the controller 300, and the controller 300 controls the closing and opening of the switching tube 500 for precise control.
- a temperature measurement method includes:
- the controller can obtain the electrical parameters of the monitoring point, such as the current value flowing through a certain monitoring point, or the voltage value between certain two monitoring points. It can be understood that those skilled in the art can set monitoring points and select corresponding electrical parameters according to actual conditions, as long as those skilled in the art deem it feasible.
- S200 Calculate the temperature of the sensor according to the electrical parameters, where the sensor is coupled to the oscillation circuit.
- the senor is coupled to the oscillation circuit.
- a changing magnetic flux will be generated.
- the magnetic flux passing through the sensor changes, causing an induced electromotive force to appear in the sensor, and an electric current will be generated inside the sensor. vortex.
- the magnetic flux passing through the oscillation circuit changes, causing an induced electromotive force to appear in the oscillation circuit, that is, mutual inductance occurs between the oscillation circuit and the sensor.
- the magnetic permeability of the sensor changes accordingly. The change in the magnetic permeability of the sensor causes the mutual inductance value between the sensor and the oscillation circuit to change.
- This part of the mutual inductance value in turn leads to the equalization of the inductor coil in the oscillation circuit.
- the effective self-inductance value changes, which in turn causes the electrical parameters in the oscillation circuit to change. That is, the change in sensor temperature will be reflected in the electrical parameters of the oscillation circuit. After measuring the corresponding electrical parameters, it can be obtained by looking up the table or fitting. Receptor temperature.
- a computer device is also provided, and the internal structure diagram of the computer device can be shown in Figure 12.
- the computer device includes a processor, a memory, and a network interface connected through a system bus. Wherein, the processor of the computer device is used to provide computing and control capabilities.
- the memory of the computer device includes non-volatile storage media and internal memory.
- the non-volatile storage medium stores operating systems, computer programs and databases. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media.
- the network interface of the computer device is used to communicate with external terminals through a network connection. When executed by the processor, the computer program implements any of the temperature measurement methods as described above.
- Figure 12 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied.
- Specific computer equipment can May include more or fewer parts than shown, or combine certain parts, or have a different arrangement of parts.
- a computer device including a memory and a processor.
- a computer program is stored in the memory.
- the processor executes the computer program, it implements the steps in the above method embodiments.
- a computer-readable storage medium on which a computer program is stored.
- the computer program is executed by a processor, the steps in the above method embodiments are implemented.
- Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc.
- Volatile memory may include random access memory (RAM) or external cache memory.
- RAM can be in many forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM).
- the temperature measurement method of the heating element is mainly by installing a temperature sensor on the aerosol generating device and connecting it to the circuit. , this method cannot completely separate the heating element and the circuit, and the circuit is complex and has great limitations.
- the temperature measurement device includes: a sensor 100, an oscillation circuit 200, a controller 300, a power supply circuit 400, and a switch tube 500.
- the sensor 100 is coupled to the oscillation circuit 200, and the oscillation circuit 200 is connected to the power supply circuit 400.
- the control The sensor 300 obtains the electrical parameters of the oscillation circuit 200 by setting monitoring points in the oscillation circuit 200, and calculates the temperature of the sensor 100 based on the electrical parameters.
- the power supply circuit 400 supplies voltage to the oscillation circuit 200 .
- the power supply circuit 400 includes a second capacitor 410 , and the oscillation circuit 200 includes a first capacitor 210 , a first inductor 220 and a diode 230 .
- the first capacitor 210 and the first inductor 220 are connected in series
- the oscillation circuit 200 further includes a diode 230
- the switch tube 500 is also used to connect to the controller 300 .
- the first end of the first inductor 220 and the cathode of the diode 230 are connected to the second end of the switch tube 500 , and the first end of the switch tube 500 is connected to the power supply circuit 400 .
- the second end of the first inductor 220 is connected to the first end of the first capacitor 210 , and the second end of the first capacitor 210 and the anode of the diode 230 are both grounded.
- the first end of the second capacitor 410 is used to receive electric energy and is connected to the oscillation circuit 200 through the switch tube 500 , specifically connected to the first end of the first inductor 220 in the oscillation circuit 200 and the cathode of the diode 230 .
- the second terminal of the second capacitor 410 is connected to ground.
- the oscillation circuit 200 is connected to the power supply circuit 400.
- the switch tube 500 When turned on, the first capacitor 210 and the first inductor 220 are charged at the same time. After the first capacitor 210 and the first inductor 220 are charged, the switching tube 500 is turned off. At this time, the first capacitor 210 starts to discharge after being charged, and the current flowing through the first inductor 220 is reversed. When the first capacitor 210 is completely discharged, The first inductor 220 starts to discharge, the first capacitor 210 starts to charge, and the cycle repeats. During the cycle, the oscillation circuit 200 starts to oscillate, and an alternating current is generated in the oscillation circuit 200 .
- the sensor 100 is a ferromagnetic material.
- L is the self-inductance value in the oscillation circuit 200
- ⁇ 0 is the relative magnetic permeability of the air
- n is the number of coil turns of the first inductor 220
- l is the coil length of the first inductor 220
- S is the first inductor. 220 coil cross-sectional area.
- the parameters ⁇ 0, n, l, and S are all known. Therefore, based on equation (2), the self-inductance value in the oscillation circuit 200 at this time can be obtained.
- Equation (3) can obtain the mutual inductance coefficient between the oscillation circuit 200 and the sensor 100,
- M is the mutual inductance coefficient between the oscillation circuit 200 and the sensor 100
- k is a constant
- L is the self- inductance value of the oscillation circuit 200
- L is the self-inductance value of the sensor 100.
- the mutual inductance coefficient M between the oscillation circuit 200 and the sensor 100 is related to the self-inductance value L of the oscillation circuit 200 and the self-inductance value L of the sensor 100 . Since the relative magnetic permeability ⁇ 0 of the air, the coil cross-sectional area S of the first inductor 220 , the number of coil turns n of the first inductor 220 , and the coil length l of the first inductor 220 are known, the self-determination of the initial oscillation circuit 200 The inductance value L is naturally determined, so when the magnetic permeability of the sensor 100 changes and the self-inductance value L of the sensor 100 changes, the mutual inductance coefficient M between the oscillation circuit 200 and the sensor 100 will change accordingly, resulting in The equivalent self-inductance value L of the oscillation circuit 200 will change.
- the equivalent self-inductance value in the oscillation circuit 200 is L. From formula (1), it can be seen that the equivalent self-inductance value L of the oscillation circuit 200 is proportional to the voltage on the first inductor 220 in the oscillation circuit 200 at a certain moment, and is proportional to the change rate of the current flowing through the first inductor 220 at a certain moment. Inversely proportional. That is, any change in the equivalent self-inductance value L in the oscillation circuit 200 will be reflected in the voltage characteristics and current characteristics of the oscillation circuit 200 .
- the voltage characteristics or current characteristics of the oscillation circuit 200 are obtained, and the temperature of the sensor 100 is obtained through table lookup or linear fitting. Furthermore, compared with using parameters such as the frequency characteristics of the oscillation circuit 200, the above temperature measurement device and method use the voltage characteristics or current characteristics of the oscillation circuit 200 to characterize the magnetic permeability of the sensor 100, and further characterize the temperature of the sensor 100. No need The monitoring speed and monitoring accuracy are very fast, and the flexibility of monitoring the voltage characteristics or current characteristics of the oscillation circuit 200 is high. For example, the peak value of a single cycle of voltage or current can be used to reflect the temperature, or the change in the effective value of the voltage or current can be used to indirectly reflect the temperature, which can reduce the performance requirements for the controller 300 to a certain extent.
- the temperature measuring device After entering a stable working state, the temperature measuring device obtains the equivalent self-inductance value L of the oscillation circuit 200 by obtaining the voltage characteristics of the oscillation circuit 200 or the current characteristics of the oscillation circuit 200, and then obtains the equivalent self-inductance value L through the equivalent self-inductance value L According to the mutual inductance coefficient M, the self-inductance value L of the sensor 100 can be obtained, and then the magnetic permeability of the sensor 100 and the temperature of the sensor 100 can be obtained.
- the temperature measurement device includes: a sensor, an oscillation circuit and a controller.
- the sensor is coupled to the oscillation circuit.
- the controller obtains the electrical parameters of the oscillation circuit and calculates the temperature of the sensor based on the electrical parameters.
- the above temperature measurement device and method are based on the coupling effect of the sensor and the oscillation circuit. By obtaining the electrical parameters of the oscillation circuit, the state change of the sensor can be obtained, and then the temperature of the sensor can be obtained.
- the temperature can be measured when the sensor and the oscillation circuit are separated, and The circuit is simple and easy to implement. At the same time, due to the non-contact temperature measurement method, the temperature measurement is more applicable and has fewer restrictions.
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
一种测温装置及方法、计算机设备及存储介质，测温装置包括：感受器(100)、振荡电路(200)以及控制器(300)，感受器(100)与振荡电路(200)耦合连接，控制器(300)获取振荡电路(200)的电参数，并根据电参数计算感受器(100)的温度。
Description
相关申请
本申请要求于2022年4月28日提交中国专利局的申请号为2022104620046、名称为“测温装置及方法”的中国专利申请的优先权，所述专利的全部内容通过引用结合在本申请中。
本申请涉及温度测量领域，特别是涉及一种测温装置及方法、计算机设备及存储介质。
目前，加热不燃烧型雾化装置越来越受到消费者的欢迎，加热不燃烧型雾化装置是通过低温烘烤固态气溶胶基质以产生气溶胶供用户抽吸，并通过精密的电子芯片控制加热温度，使得加热不燃烧型雾化装置产生的气溶胶中包含预期的成分。
因此在加热不燃烧型雾化装置中，如何感知发热元件的温度显得尤为重要。
发明内容
一种测温装置，包括：感受器、振荡电路以及控制器；所述感受器与所述振荡电路耦合连接，所述控制器获取所述振荡电路的电参数，并根据所述电参数计算所述感受器的温度。
在其中一个实施例中，所述电参数包括所述振荡电路的电流特征。
在其中一个实施例中，所述电参数包括所述振荡电路的电压特征。
在其中一个实施例中，所述控制器通过设置在所述振荡电路上的监测点获取所述电参数。
在其中一个实施例中，所述感受器为铁磁性材料。
在其中一个实施例中，所述振荡电路包括第一电容以及第一电感，所述第一电容与所述第一电感串联，所述感受器与所述第一电感耦合。
在其中一个实施例中，所述振荡电路包括第一电容以及第一电感，所述振荡电路包括第一电容以及第一电感，所述第一电容与所述第一电感并联，所述感受器与所述第一电感耦合。
在其中一个实施例中，所述装置还包括供电电路，所述振荡电路连接所述供电电路。
在其中一个实施例中，所述供电电路包括第二电容，所述第二电容的第一端用于接入电能，并连接所述振荡电路，所述第二电容的第二端接地。
在其中一个实施例中，所述测温装置还包括开关管，所述开关管的第一端连接所述供电电路或者接地，所述开关管的第二端连接所述振荡电路。
一种测温方法，所述方法包括：
获取振荡电路的电参数；
根据所述电参数计算所述感受器的温度，感受器与振荡电路耦合连接。
在其中一个实施例中，所述电参数包括所述振荡电路的电流特征。
在其中一个实施例中，所述电参数包括所述振荡电路的电压特征。
一种计算机设备，包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时，实现如下测温方法的步骤：
获取振荡电路的电参数；以及
根据所述电参数计算感受器的温度，所述感受器与所述振荡电路耦合连接。
一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如下测温方法的步骤：
获取振荡电路的电参数；以及
根据所述电参数计算感受器的温度，所述感受器与所述振荡电路耦合连接。
本申请的一个或多个实施例的细节在下面的附图和描述中提出。本申请的其他特征、目的和优点将从说明书、附图以及权利要求书变得明显。
为了更清楚地说明本申请实施例或传统技术中的技术方案，下面将对实施例或传统技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据公开的附图获得其他的附图。
图1为一个实施例中测温装置的结构示意图；
图2为一个实施例中铁磁性材料磁导率随温度变化的过程示意图；
图3为一个实施例中振荡电路的电路示意图；
图4为一个实施例中监测振荡电路中电流特征的电路示意图；
图5为一个实施例中监测振荡电路中电压特征的电路示意图；
图6为另一个实施例中测温装置的结构示意图；
图7为一个实施例中振荡电路的细化电路示意图；
图8为另一个实施例中振荡电路的细化电路示意图；
图9为一个实施例中供电电路的细化电路示意图；
图10为一个实施例中测温装置的细化电路示意图；
图11为一个实施例中测温方法的流程示意图；
图12为一个实施例中计算机设备的内部结构图；
图13为另一个实施例中测温装置的电路示意图。
为了便于理解本申请，下面将参照相关附图对本申请进行更全面的描述。附图中给出了本申请的实施例。但是，本申请可以以许多不同的形式来实现，并不限于本文所描述的实施例。相反地，提供这些实施例的目的是使本申请的公开内容更加透彻全面。
除非另有定义，本文所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同。本文中在本申请的说明书中所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请。
可以理解，本申请所使用的术语“第一”、“第二”等可在本文中用于描述各种元件，但这些元件不受这些术语限制。这些术语仅用于将第一个元件与另一个元件区分。
需要说明的是，当一个元件被认为是“连接”另一个元件时，它可以是直接连接到另一个元件，或者通过居中元件连接另一个元件。此外，以下实施例中的“连接”，如果被连接的对象之间具有电信号或数据的传递，则应理解为“电连接”、“通信连接”等。
在此使用时，单数形式的“一”、“一个”和“所述/该”也可以包括复数形式，除非上下文清楚指出另外的方式。还应当理解的是，术语“包括/包含”或“具有”等指定所陈述的特征、整体、步骤、操作、组件、部分或它们的组合的存在，但是不排除存在或添加一个或更多个其他特征、整体、步骤、操作、组件、部分或它们的组合的可能性。
传统技术中，针对发热元件的测温方式主要是通过在气溶胶生成装置上加装温度传感器并连线到电路上，这种方式无法将发热元件和电路完全分离，且电路复杂，具有很大的局限性。
本申请提供的测温装置及方法能够在感受器和振荡电路分离的情况下进行测温，电路简单，适用于气溶胶生成装置或其他器件的温度测量等应用场景中。在一个实施例中，本申请提供一种测温装置，包括：感受器100、振荡电路200以及控制器300，感受器100与振荡电路200耦合连接，控制器300获取振荡电路200的电参数，并根据电参数计算感受
器100的温度。上述测温装置基于感受器与振荡电路的耦合效应，通过获取振荡电路的电参数可以得到感受器的状态变化，进而得到感受器的温度，能够在感受器和振荡电路分离的情况下进行测温，且电路简单，易于实现，同时，由于采用非接触式的测温方式，测温的适用性更强、限制条件更少。
在本实施例中，感受器100与振荡电路200耦合连接。耦合连接，也即感受器100与振荡电路200不直接连接，但感受器100和振荡电路200其中之一的参数发生变化时，另一个的参数也将发生相应的变化，这也是振荡电路200与感受器100之间实现非接触式测温的原理。本申请中，振荡电路200的组成并不唯一，通常来说，振荡电路200需包括电容以及电感线圈，电容与电感线圈之间可以采用串联的连接方式，也可以采用并联的连接方式，可以理解，电容以及电感线圈之间的连接方式可由本领域技术人员根据实际需要选择。进一步，由于振荡电路200内部存在电容以及电感线圈，振荡电路200在接入外部电流时，振荡电路200内部的电容进行充电。电容充电完毕后进行放电，此时流经电感线圈的电流反向，电感线圈进行充电。当电感线圈的电压达到最大时，电容放电完毕，电感线圈开始放电，电容开始充电，循环往复，振荡电路200开始振荡，振荡电路200内产生交变电流。
当振荡电路200内的电流发生变化时，将产生变化的磁通量，此时穿过感受器100的磁通量发生变化，导致感受器100中将出现感应电动势，感受器100内部产生电涡流。当感受器100中的电涡流发生变化时，穿过振荡电路200的磁通量发生变化，进而使得振荡电路200中出现感应电动势，也即振荡电路200与感受器100产生互感。
感受器100通常由磁性材料制成。当感受器100温度变化时，感受器100的磁导率也会随之变化，也即感受器100的磁导率可以表征感受器100的温度。进一步，因振荡电路200与感受器100产生互感，感受器100的磁导率变化使得感受器100与振荡电路200之间的互感值发生变化，互感值的变化导致振荡电路200内电感线圈的等效自感值发生变化，进而导致振荡电路200内的电参数发生变化。
控制器300获取振荡电路200的电参数，控制器300根据电参数计算感受器的温度。本实施例中，控制器300可以包括MCU(Micro Control Unit)单元以及A/D采样单元。当然控制器300也可采用具有相应功能的其他单元及其外围电路来实现。
控制器300获取振荡电路200的电参数的方法并不唯一。在本实施例中，如图1所示，控制器300连接振荡电路200，进而控制器300通过在振荡电路200上设置监测点的方式获取电参数。可以理解，控制器300也可通过无线方式获取振荡电路200的电参数。本领域技术人员可以根据实际情况选择获取振荡电路200的电参数的方式。
控制器300通过监测振荡电路200的电参数实现测温。电参数的选择也并不唯一，可以是监测点的电压特征、电流特征或者频率特征。监测点的选择也并不唯一。示例性的，可以在电感线圈的两端设置监测点获取电感线圈两端的电压值，也可在电容的两端设置监测点获取电容两端的电压值。可以理解，本领域技术人员还可选择其他电参数以及监测点，只要本领域技术人员认为可以实现。
控制器300根据获取到的电参数实现测温的方式也不唯一。例如，控制器300内部设置人工智能算法模块对振荡电路200的历史电参数和感受器100的历史温度之间的关系进行学习，得到预测模型。后续测温过程中，控制器300将获取到的当前电参数输入该预测模型得到感受器100的温度的预测结果，通过这种方式可以极大提高自动化程度。
示例性的，如图3所示，振荡电路200包括第一电容210以及第一电感220，第一电容210的第一端连接第一电感220的第一端，第一电容210的第二端连接第一电感220的第二端。振荡电路200接入外部电流I进行工作，感受器100与振荡电路200产生互感。当感受器100的温度变化后，感受器100的磁导率相应发生变化，振荡电路200的等效自感值也相应发生变化，则振荡电路200内部相应的电参数也会发生变化。在本实施例中，选取电压特征作为监测值，在第一电感220两端分别设置监测点，控制器300获取一段时间内各监测点上的电压值，通过查表或者回归拟合的方式得到感受器100的温度。
在其中一个实施例中，电参数包括振荡电路200的电流特征。
本实施例中，如图4所示，振荡电路200包括第一电容210以及第一电感220，第一电容210的第一端连接第一电感220的第一端，第一电容210的第二端连接第一电感220的第二端。振荡电路200接入外部电流I进行工作，感受器100与振荡电路200产生互感，感受器100内部产生电涡流。当感受器100的温度变化后，感受器100的磁导率相应发生变化，进而感受器100与振荡电路200之间的互感值发生变化，这部分互感值与振荡电路200的自感值叠加，导致振荡电路200内电感线圈的等效自感值发生变化。参见式(1)，
其中，L为振荡电路200的等效自感值，iL(t)是流经第一电感220的电流值I随时间t变化的函数，uL(t)是第一电感220两端的电压值U随时间t变化的函数。式(1)表示，振荡电路200的等效自感值与振荡电路200内第一电感220上某时刻的电压成正比，与某时刻流经第一电感220的电流的变化率成反比。也即，振荡电路200中等效自感值L的任何变化都将反映在各时刻流经第一电感220的电流的变化率上，故振荡电路200的电流特
征可以包括各时刻流经第一电感220的电流的变化率、流经第一电感220的电流的幅值或者一段时间内的流经第一电感220的电流的有效值等参数。通过测量多组振荡电路200的电流特征与感受器100的温度数据，运用回归分析等手段可得到振荡电路200的电流特征与感受器100的温度之间的关系。
示例性的，如图4所示，控制器300在第一电感220的一端设置监测点，从而获取振荡电路200中一段时间内流经第一电感220的电流值I1，可以得到各时刻流经第一电感220的电流值I1的变化率。控制器300通过对以往测量的多组振荡电路200中各时刻流经第一电感220的电流值I1的变化率与感受器100的温度数据进行拟合，得到所述电流值I1的变化率与感受器100的温度之间的关系，从而实现测温。控制器300也可以获取一段时间内流经整个振荡电路200的电流值I2，由电流值I2计算出流经第一电感220的电流值I1，并重复前述操作，实现测温。
在其中一个实施例中，电参数包括振荡电路200的电压特征。
本实施例中，如图5所示，振荡电路200包括第一电容210以及第一电感220，第一电容210的第一端连接第一电感220的第一端，第一电容210的第二端连接第一电感220的第二端。振荡电路200接入外部电流I进行工作，感受器100与振荡电路200产生互感，感受器100内部产生电涡流。当感受器100的温度变化后，感受器100的磁导率相应发生变化，进而感受器100与振荡电路200之间的互感值发生变化，互感值的变化与振荡电路200的自感值叠加，导致振荡电路200内电感线圈的等效自感值发生变化。又由式(1)可得，振荡电路200的等效自感值L与振荡电路200内第一电感220上某时刻的电压成正比，与某时刻流经第一电感220的电流的变化率成反比。也即，振荡电路200中等效自感值L的任何变化都将反映在振荡电路200内各时刻第一电感220上某时刻的电压上，故振荡电路200的电压特征可以包括振荡电路200内各时刻第一电感220上的电压、第一电感220上电压的幅值或者一段时间内的第一电感220上电压的有效值等参数。通过测量多组振荡电路200的电压特征与感受器100的温度数据，运用回归分析等手段可得到振荡电路200的电压特征与感受器100的温度之间的关系。
示例性的，如图5所示，控制器300在第一电感220的两端或者第一电容210的两端设置监测点，从而获取振荡电路200中一段时间内各时刻第一电感220的电压U1。控制器300对通过以往测量的多组振荡电路200中各时刻第一电感220的电压U1与感受器100的温度数据进行拟合，得到所述电压值U1与感受器100的温度之间的关系，从而实现测温。
在其中一个实施例中，感受器100为铁磁性材料。
本实施例中，感受器100为铁磁性材料，也即感受器100由铁磁性材料制成，如图2所示，铁磁性材料的磁导率随温度变化而变化。当铁磁性材料的温度远低于居里温度Tc时，可利用铁磁性材料的磁导率与温度正相关的特性进行测温；当铁磁性材料的温度在居里温度Tc周围时，此时居里温度Tc附近存在两个区域，一个是温度与磁导率成正相关的区域，另一个是温度跟磁导率成负相关的区域，可利用不同区域的不同特性进行测温。也即用铁磁性材料的磁导率表征铁磁性材料的温度。进一步，铁磁性材料的磁导率随温度变化较大，通过采用铁磁性材料作为感受器100，会使得测量的结果更为直观。可以理解，感受器100也可由其他磁性材料制成，其他磁性材料的磁导率随温度变化的趋势并不一定与图2所示相同，本领域技术人员可以根据实际需要选取感受器100的具体种类。
在其中一个实施例中，如图6所示，测温装置还包括供电电路400，振荡电路200连接供电电路400。
供电电路400用于向振荡电路200提供电压，以便振荡电路200产生交变电流。
在其中一个实施例中，如图7所示，振荡电路200包括第一电容210以及第一电感220，第一电容210与第一电感220串联，感受器100与第一电感220耦合。在本实施例中，第一电容210的第一端连接第一电感220的第一端，感受器100与第一电感220耦合，控制器300可以监测在第一电容210两端或者第一电感220两端的电参数。
在其中一个实施例中，如图8所示，振荡电路200包括第一电容210以及第一电感220，第一电容210与第一电感220并联，感受器100与第一电感220耦合。在本实施例中，第一电容210的第一端连接第一电感220的第一端，第一电容210的第二端连接第一电感220的第二端，控制器300可以监测在第一电容210两端或者第一电感220两端的电参数。
可以理解，振荡电路200中等效自感值的任何变化都将反映在电压特征与电流特征上，因此，振荡电路200中第一电容210以及第一电感220之间的连接方式并不唯一，本领域技术人员认为可以实现即可。
在其中一个实施例中，如图9所示，供电电路400还包括第二电容410，第二电容410的第一端连接振荡电路200，第二电容410的第二端接地。
本实施例中，供电电路400包括第二电容410，第二电容410的第一端连接振荡电路200，第二电容410的第二端接地，第二电容能够有效滤除供电电路中的杂波和交流成分，避免产生自激，稳定供电电路的工作状态，储存电能。
在其中一个实施例中，测温装置还包括开关管500，开关管500的第一端连接供电电
路400或者接地，开关管500的第二端连接振荡电路200。示例性的，振荡电路200包括第一电容210以及第一电感220。当第一电容210以及第一电感220之间采用并联的连接方式时，如图10所示，开关管500的第一端接地，开关管500的第二端连接振荡电路200，即，连接第一电容210的第一端以及第一电感220的第一端。开关管500控制振荡电路200是否接入供电电路400，以便振荡电路200产生交变电流。进一步，开关管500还可连接控制器300，控制器300控制开关管500的闭合与断开，进行精准调控。
一种测温方法，如图11所示，该测温方法包括：
S100：获取振荡电路的电参数。
本实施例中，可通过在振荡电路上设置监测点，控制器获取监测点的电参数，比如流经某个监测点的电流值，或者某两个监测点之间的电压值。可以理解，本领域技术人员可根据实际情况设置监测点并选择相应的电参数，只要本领域技术人员认为可以实现。
S200：根据电参数计算感受器的温度，其中，感受器与振荡电路耦合连接。
本实施例中，感受器与振荡电路耦合连接，当振荡电路内的电流发生变化时，将产生变化的磁通量，此时穿过感受器的磁通量发生变化，导致感受器中将出现感应电动势，感受器内部产生电涡流。当感受器中的电涡流发生变化时，穿过振荡电路的磁通量发生变化，进而使得振荡电路中出现感应电动势，也即振荡电路与感受器产生互感。进一步，当感受器温度发生变化时，感受器的磁导率随之变化，感受器的磁导率变化使得感受器与振荡电路之间的互感值发生变化，这部分互感值进而导致振荡电路内电感线圈的等效自感值发生变化，进而导致振荡电路内的电参数发生变化，即感受器温度的变化将会反映在振荡电路的电参数上，测量相应的电参数后通过查表或者拟合的方式可得到感受器的温度。
关于测温方法的具体限定可以参见上文中对测温装置的限定，在此不再赘述。
在一个实施例中，还提供了一种计算机设备，该计算机设备内部结构图可以如图12所示。该计算机设备包括通过系统总线连接的处理器、存储器、网络接口。其中，该计算机设备的处理器用于提供计算和控制能力。该计算机设备的存储器包括非易失性存储介质、内存储器。该非易失性存储介质存储有操作系统、计算机程序和数据库。该内存储器为非易失性存储介质中的操作系统和计算机程序的运行提供环境。该计算机设备的网络接口用于与外部的终端通过网络连接通信。该计算机程序被处理器执行时以实现如前所述任一种测温方法。
本领域技术人员可以理解，图12中示出的结构，仅仅是与本申请方案相关的部分结构的框图，并不构成对本申请方案所应用于其上的计算机设备的限定，具体的计算机设备可以包括比图中所示更多或更少的部件，或者组合某些部件，或者具有不同的部件布置。
在一个实施例中，提供了一种计算机设备，包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时实现上述各方法实施例中的步骤。
在一个实施例中，提供了一种计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行时实现上述各方法实施例中的步骤。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成的，计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其他介质的任何引用，均可包括非易失性和易失性存储器中的至少一种。非易失性存储器可包括只读存储器(Read-OnlyMemory，ROM)、磁带、软盘、闪存或光存储器等。易失性存储器可包括随机存取存储器(Random Access Memory，RAM)或外部高速缓冲存储器。作为说明而非局限，RAM可以是多种形式，比如静态随机存取存储器(Static Random Access Memory，SRAM)或动态随机存取存储器(Dynamic Random Access Memory，DRAM)等。
为了便于更好地理解上述测温装置以及方法，下面结合一个具体的实施例进行详细解释说明。
在加热不燃烧型雾化装置中，十分重要的一点是感知发热元件的温度，然而传统技术中针对发热元件的测温方式主要是通过在气溶胶生成装置加装温度传感器并连线到电路上，这种方式无法将发热元件和电路完全分离，且电路复杂，具有很大的局限性。
基于此，本申请提供的测温装置，包括：感受器100、振荡电路200、控制器300、供电电路400以及开关管500，感受器100与振荡电路200耦合连接，振荡电路200连接供电电路400，控制器300通过在振荡电路200设置监测点的方式获取振荡电路200的电参数，并根据电参数计算感受器100的温度。
供电电路400向振荡电路200提供电压。供电电路400包括第二电容410，振荡电路200包括第一电容210、第一电感220以及二极管230。如图13所示，本一个示例性的实施例中，第一电容210与第一电感220采用串联方式连接，振荡电路200还包括二极管230，开关管500还用于连接控制器300。第一电感220的第一端、二极管230的阴极连接开关管500的第二端，开关管500的第一端连接供电电路400。第一电感220的第二端连接第一电容210的第一端，第一电容210的第二端与二极管230的阳极均接地。第二电容410的第一端用于接入电能，并通过开关管500连接振荡电路200，具体连接振荡电路200中第一电感220的第一端以及二极管230的阴级。第二电容410的第二端接地。
控制器300控制开关管500闭合时，振荡电路200接入供电电路400，当开关管500
导通时，第一电容210以及第一电感220同时充电。第一电容210以及第一电感220充电完成后断开开关管500，此时第一电容210充电完毕后开始放电，流经第一电感220的电流反向，当第一电容210放电完毕时，第一电感220开始放电，第一电容210开始充电，循环往复。在循环往复过程中，振荡电路200开始振荡，振荡电路200内产生交变电流。而感受器100为铁磁性材料，当振荡电路200内的电流发生变化时，将产生变化的磁通量，此时穿过感受器100的磁通量发生变化，导致感受器100中将出现感应电动势，感受器100内部产生电涡流。当感受器100中的电涡流发生变化时，此时穿过振荡电路200的磁通量发生变化，进而使得振荡电路200中出现感应电动势，也即振荡电路200与感受器100产生互感。
如图2所示，当感受器100的温度发生变化，感受器100的磁导率随之发生变化。进一步，由式(2)可得到震荡电路200中的自感值，
L自＝μ0n2lS (2)
L自＝μ0n2lS (2)
其中，L自是振荡电路200中的自感值，μ0为空气的相对磁导率，n是第一电感220的线圈匝数，l是第一电感220的线圈长度，S是第一电感220的线圈截面积。参数μ0、n、l、S均已知，因此，基于式(2)可以得到此时振荡电路200中的自感值。
振荡电路200与感受器100产生互感，这部分互感会叠加在振荡电路200的自感上，在感受器100的磁导率发生变化的情况下，振荡电路200与感受器100产生的互感会发生变化，由式(3)可得振荡电路200与感受器100之间的互感系数，
其中，M为振荡电路200与感受器100之间的互感系数，k为常数，L自为振荡电路200的自感值，L感为感受器100的自感值。
也即振荡电路200与感受器100之间的互感系数M与振荡电路200的自感值L自以及感受器100的自感值L感有关。由于空气的相对磁导率μ0、第一电感220的线圈截面积S、第一电感220的线圈匝数n、第一电感220的线圈长度l是已知的，则初始振荡电路200的自感值L自是确定的，故当感受器100的磁导率发生变化时，感受器100的自感值L感发生变化时，振荡电路200与感受器100之间的互感系数M会相应变化，从而导致振荡电路200的等效自感值L会发生变化。
进一步，振荡电路200与感受器100之间的互感系数M发生变化，此时振荡电路200中的等效自感值为L。又由式(1)可得，振荡电路200的等效自感值L与振荡电路200内第一电感220上某时刻的电压成正比，与某时刻流经第一电感220的电流的变化率成反比。也即，振荡电路200中等效自感值L的任何变化都将反映在振荡电路200的电压特征以及电流特征上。获取振荡电路200的电压特征或者电流特征，通过查表或者线性拟合的方式得到感受器100的温度。进一步，相较于使用振荡电路200的频率特征等参数，上述测温装置及方法使用振荡电路200的电压特征或者电流特征来表征感受器100的磁导率，并进而表征感受器100的温度，不需要很快的监测速度以及监测精度，并且监测振荡电路200的电压特征或电流特征的灵活性较高。例如，可以使用电压或者电流的单周期的峰值高低反映温度，也可以使用电压或者电流的有效值变化来间接反映温度，可以在一定程度上降低对控制器300的性能要求。
综上，当进入稳定工作状态后，测温装置通过获取振荡电路200的电压特征或者振荡电路200的电流特征进而得到振荡电路200的等效自感值L，再通过等效自感值L得到互感系数M，根据互感系数M可以得到感受器100的自感值L自，进而得到感受器100的磁导率以及感受器100的温度。
上述测温装置及方法中，测温装置包括：感受器、振荡电路以及控制器，感受器与振荡电路耦合连接，控制器获取振荡电路的电参数，并根据电参数计算感受器的温度。上述测温装置及方法基于感受器与振荡电路的耦合效应，通过获取振荡电路的电参数可以得到感受器的状态变化，进而得到感受器的温度，能够在感受器和振荡电路分离的情况下进行测温，且电路简单，易于实现。同时，由于采用非接触式的测温方式，测温的适用性更强、限制条件更少。
在本说明书的描述中，参考术语“一个实施例”、“其他实施例”、“理想实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特征包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性描述不一定指的是相同的实施例或示例。
以上实施例的各技术特征可以进行任意的组合，为使描述简洁，未对上述实施例中的各个技术特征所有可能的组合都进行描述，然而，只要这些技术特征的组合不存在矛盾，都应当认为是本说明书记载的范围。
以上实施例仅表达了本申请的几种实施方式，其描述较为具体和详细，但并不能因此
而理解为对申请专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干变形和改进，这些都属于本申请的保护范围。因此，本申请专利的保护范围应以所附权利要求为准。
Claims (15)
- 一种测温装置，包括：感受器、振荡电路以及控制器；所述感受器与所述振荡电路耦合连接，所述控制器获取所述振荡电路的电参数，并根据所述电参数计算所述感受器的温度。
- 根据权利要求1所述的测温装置，其中，所述电参数包括所述振荡电路的电流特征。
- 根据权利要求1所述的测温装置，其中，所述电参数包括所述振荡电路的电压特征。
- 根据权利要求2或3所述的测温装置，其中，所述振荡电路上设置有监测点，所述控制器通过所述监测点获取所述电参数。
- 根据权利要求1所述的测温装置，其中，所述感受器为铁磁性材料。
- 根据权利要求1所述的测温装置，其中，所述振荡电路包括第一电容以及第一电感，所述第一电容与所述第一电感串联，所述感受器与所述第一电感耦合。
- 根据权利要求1所述的测温装置，其中，所述振荡电路包括第一电容以及第一电感，所述第一电容与所述第一电感并联，所述感受器与所述第一电感耦合。
- 根据权利要求1所述的测温装置，其中，所述装置还包括供电电路，所述振荡电路连接所述供电电路。
- 根据权利要求8所述的测温装置，其中，所述供电电路包括第二电容，所述第二电容的第一端用于接入电能，并连接所述振荡电路，所述第二电容的第二端接地。
- 根据权利要求8所述的测温装置，其中，还包括开关管，所述开关管的第一端连接所述供电电路或者接地，所述开关管的第二端连接所述振荡电路。
- 一种测温方法，所述方法包括：获取振荡电路的电参数；根据所述电参数计算感受器的温度，所述感受器与所述振荡电路耦合连接。
- 根据权利要求11所述的测温方法，其中，所述电参数包括所述振荡电路的电流特征。
- 根据权利要求11所述的测温方法，其中，所述电参数包括所述振荡电路的电压特征。
- 一种计算机设备，包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时，实现如下测温方法的步骤：获取振荡电路的电参数；以及根据所述电参数计算感受器的温度，所述感受器与所述振荡电路耦合连接。
- 一种计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时实现如下测温方法的步骤：获取振荡电路的电参数；以及根据所述电参数计算感受器的温度，所述感受器与所述振荡电路耦合连接。
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| CN111150114A (zh) * | 2020-01-09 | 2020-05-15 | 惠州市沛格斯科技有限公司 | 测温电路、电子烟具以及测温方法 |
| CN111537099A (zh) * | 2020-04-24 | 2020-08-14 | 云南中烟工业有限责任公司 | 涡流加热及温度检测二合一装置及温度检测方法 |
| WO2021083344A1 (zh) * | 2019-10-31 | 2021-05-06 | 深圳市合元科技有限公司 | 气雾生成装置及控制方法 |
| CN113826954A (zh) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | 一种非接触式的温度检测电路及电子烟 |
| CN114766740A (zh) * | 2022-04-28 | 2022-07-22 | 深圳麦时科技有限公司 | 测温装置及方法 |
| CN116046191A (zh) * | 2023-02-16 | 2023-05-02 | 思摩尔国际控股有限公司 | 一种测温装置、测温方法和气溶胶生成设备 |
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2022
- 2022-04-28 CN CN202210462004.6A patent/CN114766740A/zh active Pending
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- 2023-03-01 WO PCT/CN2023/078952 patent/WO2023207317A1/zh unknown
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| US20200022412A1 (en) * | 2017-03-31 | 2020-01-23 | British American Tobaco (Investments) Limited | Temperature determination |
| CN107764427A (zh) * | 2017-10-19 | 2018-03-06 | 张雁 | 一种非接触式金属温度测量装置 |
| CN110626187A (zh) * | 2019-10-21 | 2019-12-31 | 中兴新能源汽车有限责任公司 | 一种金属异物检测装置、检测方法及无线充电系统 |
| WO2021083344A1 (zh) * | 2019-10-31 | 2021-05-06 | 深圳市合元科技有限公司 | 气雾生成装置及控制方法 |
| CN111150114A (zh) * | 2020-01-09 | 2020-05-15 | 惠州市沛格斯科技有限公司 | 测温电路、电子烟具以及测温方法 |
| CN111537099A (zh) * | 2020-04-24 | 2020-08-14 | 云南中烟工业有限责任公司 | 涡流加热及温度检测二合一装置及温度检测方法 |
| CN113826954A (zh) * | 2020-06-23 | 2021-12-24 | 比亚迪股份有限公司 | 一种非接触式的温度检测电路及电子烟 |
| CN114766740A (zh) * | 2022-04-28 | 2022-07-22 | 深圳麦时科技有限公司 | 测温装置及方法 |
| CN116046191A (zh) * | 2023-02-16 | 2023-05-02 | 思摩尔国际控股有限公司 | 一种测温装置、测温方法和气溶胶生成设备 |
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