Heat source type identification method and apparatus, device, and storage medium

Abstract

A heat source type identification method and apparatus, a device, and a storage medium. In the process of a capacitive temperature sensor sensing the external temperature, bulk capacitance and bulk resistance of the capacitive temperature sensor are continuously acquired to obtain bulk capacitance and bulk resistance of the capacitive temperature sensor at each acquisition moment; capacitance change information formed by the bulk capacitance at the moments is calculated, and an ion relaxation time of an ionic thermoelectric gel is calculated on the basis of the bulk capacitance and the bulk resistance; and a heat source type is identified on the basis of the capacitance change information and the ion relaxation time. There are correspondences between bulk capacitance as well as bulk resistance and heat source types; the use of a capacitive temperature sensor can acquire a temperature, and can also identify the type of a heat source that causes the temperature.

Description

A heat source type identification method, device, equipment and storage medium Technical Field

[0001] The present invention relates to the field of temperature measurement technology, and in particular to a heat source type identification method, device, equipment and storage medium. Background Art

[0002] Temperature can be measured by a temperature sensor, and corresponding temperature control can be achieved based on the measured temperature. However, the temperature measured by existing technologies is only the magnitude of the temperature, and cannot identify the category of the heat source that generates the temperature. In other words, the existing technology is limited to measuring the temperature magnitude. The categories of heat sources include thermal radiation, thermal convection, and thermal conduction. Thermal radiation is based on the principle of blackbody radiation to exchange heat with an object. Since there is no direct contact, only temperature stimulation can affect the object. For example, the sun is a type of heat source that is thermal radiation. Thermal convection occurs when a fluid interacts with an object, generating temperature and small pressure stimulation. For example, a blower produces hot air to heat an object. The type of heat source is thermal convection. If there is direct contact between the heat source and the object, thereby generating proximity stimulation, pressure stimulation, and temperature stimulation to the object, then the type of heat source is thermal conduction.

[0003] In summary, the existing technology can only measure the temperature but cannot identify the type of heat source that generates the temperature.

[0004] Therefore, the existing technology still needs to be improved and enhanced. Summary of the Invention

[0005] To solve the above technical problems, the present invention provides a heat source type identification method, device, equipment and storage medium, which solves the problem that the existing technology can only measure the temperature but cannot identify the type of heat source that generates the temperature.

[0006] To achieve the above object, the present invention adopts the following technical solutions:

[0007] In a first aspect, the present invention provides a heat source type identification method, apparatus, device, and storage medium, which include:

[0008] In the process of the capacitive temperature sensor sensing the external temperature, collecting the body capacitance and body resistance of the capacitive temperature sensor, and determining capacitance change information of the body capacitance;

[0009] determining an ion relaxation time of the ion gel on the capacitive temperature sensor based on the bulk capacitance and the bulk resistance;

[0010] The type of heat source corresponding to the external temperature is identified based on the capacitance change information and the ion relaxation time.

[0011] In one implementation, determining the capacitance change information of the body capacitance includes:

[0012] Determining information about an increase or decrease in capacitance value of the bulk capacitor over time;

[0013] The positive and negative change directions of the bulk capacitance are determined according to the increase and decrease information of the capacitance value over time, and the positive and negative change directions are used as the capacitance change information.

[0014] In one implementation, determining the ion relaxation time of the ion gel on the capacitive temperature sensor based on the body capacitance and the body resistance includes:

[0015] Multiplying the bulk capacitance by the bulk resistance yields the ion relaxation time.

[0016] In one implementation, identifying the type of heat source corresponding to the external temperature based on the capacitance change information and the ion relaxation time includes:

[0017] Determining the temperature value at each moment corresponding to the external temperature based on the ion relaxation time;

[0018] Determining the temperature stability corresponding to the external temperature based on the temperature values ​​at each moment;

[0019] The type of heat source corresponding to the external temperature is identified based on the temperature stability and the capacitance change information.

[0020] In one implementation, identifying the type of heat source corresponding to the external temperature based on the temperature stability and the capacitance change information includes:

[0021] When the temperature stability is unstable and the capacitance change information is zero, determining that the heat source type is thermal radiation;

[0022] Alternatively, when the temperature stability is unstable and the capacitance change information is a positive capacitance change, determining that the heat source type is thermal convection;

[0023] Alternatively, when the temperature stability is unstable and the capacitance change information shows alternating negative capacitance change and positive capacitance change, the heat source type is determined to be heat conduction.

[0024] In one implementation, the capacitive temperature sensor is prepared by:

[0025] Using methoxy polyethylene glycol acrylate as a solvent and lithium bispentafluoroethylsulfonyl imide as a solute, stirring and mixing to form a mixture;

[0026] placing the mixture on a first electrode and curing the mixture until the mixture is cured into an ion gel;

[0027] A second electrode is attached to the ion gel to form a capacitive temperature sensor.

[0028] In one implementation, the capacitive temperature sensor is tested by:

[0029] Performing heat transfer between the capacitive temperature sensor and a test heat source of a known heat source type, collecting a test body capacitance and a test body resistance of the capacitive temperature sensor, and determining test capacitance change information of the test body capacitance;

[0030] determining an ion relaxation test time of the ion gel on the capacitive temperature sensor according to the test body capacitance and the test body resistance;

[0031] Determining a heat source test type for the external temperature based on the test capacitance change information and the ion relaxation test time;

[0032] A test result for the capacitive temperature sensor is obtained according to the heat source test type and the known heat source type.

[0033] In a second aspect, an embodiment of the present invention further provides a heat source type identification device, wherein the device includes the following components:

[0034] An information acquisition module, configured to acquire the body capacitance and body resistance of the capacitive temperature sensor during the process of the capacitive temperature sensor sensing the external temperature, and determine capacitance change information of the body capacitance;

[0035] an ion relaxation time calculation module, configured to determine the ion relaxation time of the ion gel on the capacitive temperature sensor based on the body capacitance and the body resistance;

[0036] An identification module is used to identify the type of heat source corresponding to the external temperature based on the capacitance change information and the ion relaxation time.

[0037] In a third aspect, an embodiment of the present invention further provides a terminal device, wherein the terminal device includes a memory, a processor, and a heat source type identification program stored in the memory and runnable on the processor, and when the processor executes the heat source type identification program, the steps of the above-mentioned heat source type identification method are implemented.

[0038] In a fourth aspect, an embodiment of the present invention further provides a computer-readable storage medium, on which a heat source type identification program is stored. When the heat source type identification program is executed by a processor, the steps of the heat source type identification method described above are implemented.

[0039] Beneficial effect: In the process of the capacitive temperature sensor sensing the external temperature, the present invention continuously collects the body capacitance and body resistance of the capacitive temperature sensor to obtain the body capacitance and body resistance of the capacitive temperature sensor at each collection moment. Then the capacitance change information formed by the body capacitance at each moment is calculated, and the ion relaxation time of the ion gel is calculated based on the body capacitance and body resistance. Since the temperatures generated by different types of heat sources will cause different changes in body capacitance and body resistance, and also cause different ion relaxation times, the ion relaxation time can reflect the size of the external temperature sensed by the capacitive temperature sensor, and the size of the external temperature can characterize whether there is a heat source, there is a corresponding relationship between the body capacitance and body resistance and the type of heat source, so the present invention can identify the type of heat source based on the body capacitance and body resistance and the change information of the body capacitance. In summary, the present application can not only collect the temperature size by using the capacitive temperature sensor, but also identify the type of heat source that generates the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is an overall flow chart of the present invention;

[0041] FIG2 is a structural diagram of a capacitive temperature sensor in an embodiment of the present invention;

[0042] FIG3 shows three heat exchange modes of heat radiation, heat convection, and heat conduction in an embodiment of the present invention;

[0043] 4 is a schematic diagram showing the corresponding relationships between heat radiation, heat convection, and heat conduction, and temperature signals and capacitance signals, respectively, according to an embodiment of the present invention;

[0044] FIG5 is a graph showing ion relaxation characteristics of a capacitive temperature sensor according to an embodiment of the present invention;

[0045] FIG6 is a schematic diagram showing the relationship between bulk resistance, bulk capacitance, ion relaxation time, and temperature in an embodiment of the present invention;

[0046] FIG7 is a schematic diagram showing the response of the capacitive temperature sensor according to an embodiment of the present invention to a 0.005° C. temperature change of a heat source;

[0047] FIG8 is a schematic diagram of capacitance response caused by temperature in an embodiment of the present invention;

[0048] FIG9 is a schematic diagram showing changes in ion relaxation time and normalized capacitance of a capacitive temperature sensor under temperature stimulation only in an embodiment of the present invention;

[0049] FIG10 is a schematic diagram showing changes in ion relaxation time and normalized capacitance of a capacitive temperature sensor under pressure stimulation only in an embodiment of the present invention;

[0050] FIG11 is a schematic diagram of the change of forward capacitance in an embodiment of the present invention;

[0051] FIG12 is a schematic diagram of negative capacitance change in an embodiment of the present invention;

[0052] FIG13 is a structural diagram of a heat source type identification device provided by the present invention;

[0053] FIG14 is a block diagram of the internal structure of a terminal device according to an embodiment of the present invention. DETAILED DESCRIPTION

[0054] The following is a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments and the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0055] Research has found that temperature can be measured using a temperature sensor, and corresponding temperature control can be achieved based on the measured temperature. However, the temperature measured by existing technologies is only the magnitude of the temperature and cannot identify the type of heat source that generates the temperature. In other words, existing technologies are limited to measuring the magnitude of the temperature. Heat sources include thermal radiation, thermal convection, and thermal conduction. Thermal radiation is the exchange of heat with an object based on the principle of blackbody radiation. Since there is no direct contact, only temperature stimulation can affect the object. For example, the sun is a type of heat source that is thermal radiation. Thermal convection occurs when a fluid interacts with an object, generating temperature and small pressure stimulation. For example, a blower produces hot air to heat an object. The type of heat source is thermal convection. If there is direct contact between the heat source and the object, thereby generating proximity stimulation, pressure stimulation, and temperature stimulation to the object, then the type of heat source is thermal conduction.

[0056] To address the above-mentioned technical problems, the present invention provides a heat source type identification method, device, equipment, and storage medium, resolving the problem that existing technologies can only measure the temperature magnitude but cannot identify the type of heat source generating the temperature. In a specific implementation, during the process of sensing the external temperature using a capacitive temperature sensor, the capacitive temperature sensor's bulk capacitance and bulk resistance are collected, and capacitance change information of the bulk capacitance is determined. The ion relaxation time of the ion gel on the capacitive temperature sensor is then determined based on the bulk capacitance and bulk resistance. Finally, based on the capacitance change information and the ion relaxation time, the heat source type corresponding to the external temperature is identified.

[0057] For example, a capacitive temperature sensor can be installed on a prosthetic limb to form an electronic skin for sensing external temperature. This capacitive temperature sensor is also known as a multimodal temperature sensor. It collects the electronic skin's body capacitance and body resistance, analyzes the change in capacitance over time, and calculates the ion relaxation time based on the body capacitance and body resistance. The type of heat source providing the temperature is then analyzed based on the ion relaxation time and capacitance change information. The temperature of the prosthetic limb can then be adjusted accordingly to prevent performance degradation or damage due to overheating or overcooling, thereby improving the prosthetic's efficiency and service life.

[0058] The heat source type identification method of this embodiment can be applied to a terminal device, which can be a terminal product with a video playback function, such as a prosthetic controller. In this embodiment, as shown in FIG1 , the heat source type identification method specifically includes the following steps:

[0059] S100, in a process where the capacitive temperature sensor senses an external temperature, collecting a body capacitance and a body resistance of the capacitive temperature sensor, and determining capacitance change information of the body capacitance;

[0060] S200, determining an ion relaxation time of the ion gel on the capacitive temperature sensor according to the body capacitance and the body resistance;

[0061] In one embodiment, the ion gel is an ion thermoelectric gel different from general ion gels.

[0062] S300 : Identifying a heat source type corresponding to the external temperature based on the capacitance change information and the ion relaxation time.

[0063] In one embodiment, the capacitive temperature sensor in step S100 has a structure as shown in FIG2 , including two electrodes and an ion gel located between the two electrodes. As shown in FIG2 , the two electrodes and the ion gel form a sandwich structure.

[0064] In one embodiment, the capacitive temperature sensor preparation process in step S100 is as follows: using methoxy polyethylene glycol acrylate as a solvent and lithium bis(pentafluoroethylsulfonyl)imide as a solute, stirring and mixing to form a mixture; placing the mixture on a first electrode and curing the mixture until the mixture solidifies into an ion gel; and attaching a second electrode to the ion gel to form a capacitive temperature sensor.

[0065] In this example, methoxy polyethylene glycol acrylate (MPEG-DA) was used as the monomer solvent, and lithium bis(pentafluoroethylsulfonylimide) (Li-PFSI) was used as the electrolyte salt solute. After mixing, the two were mixed to a Li-PFSI concentration of 0.1 mol / L and thoroughly stirred. After the mixture was evenly stirred, it was dripped onto an electrode and placed in a UV curing machine for 30 minutes. After curing into an ion gel, it was bonded to another electrode to form a capacitive multimodal temperature sensor, effectively forming a capacitive temperature sensor.

[0066] In another embodiment, the capacitive temperature sensor prepared in the above embodiment is tested, including the following specific steps S001 to S004:

[0067] S001 , performing heat transfer between a test heat source of a known heat source type and the capacitive temperature sensor, collecting a test body capacitance and a test body resistance of the capacitive temperature sensor, and determining test capacitance change information of the test body capacitance.

[0068] The capacitive temperature sensor in this embodiment is located on the prosthesis, and the test heat sources are the sun, air gun, and finger. The heat source type corresponding to the sun is thermal radiation, the heat source type corresponding to the air gun is thermal convection, and the heat source type corresponding to the finger contacting the prosthesis is thermal conduction. The heat transfer mechanism of thermal radiation, thermal convection, and thermal conduction is shown in Figure 3. Since the heat generated by the heat source of the thermal convection type will form a pressure stimulus on the capacitive temperature sensor, causing the capacitive temperature sensor to deform, and then causing its capacitance to change; the heat source of the thermal conduction type will change the charge distribution on the surface of the capacitive temperature sensor electrode when approaching the capacitive temperature sensor, and then cause its capacitance to change. Therefore, the heat exchange between the heat source and the capacitive temperature sensor will cause the latter's capacitance to change.

[0069] Heat is transferred to the prosthesis using one of the three heat sources, the test body capacitance and test body resistance of the capacitive temperature sensor are collected, and information on changes in the test body capacitance over time is calculated.

[0070] S002 : Determine an ion relaxation test time of the ion gel on the capacitive temperature sensor according to the test body capacitance and the test body resistance.

[0071] S003: Determine the heat source test type of the external temperature according to the test capacitance change information and the ion relaxation test time.

[0072] S004: Obtain a test result for the capacitive temperature sensor according to the heat source test type and the known heat source type.

[0073] If the known heat source type is convection and the heat source test type is conduction, the capacitive temperature sensor will fail the test. Conversely, if the heat source test type calculated using the capacitive temperature sensor's bulk capacitance and bulk resistance is convection, that is, the heat source test type and known heat source type are the same, then the capacitive temperature sensor will pass.

[0074] In one embodiment, determining the capacitance change information of the body capacitance in step S100 includes the following specific steps S101 and S102:

[0075] S101, determining information on increase and decrease of the capacitance value of the bulk capacitor over time.

[0076] S102 : Determine a positive or negative change direction of the body capacitance according to the information of increase or decrease of the capacitance value over time, and use the positive or negative change direction as the capacitance change information.

[0077] In this embodiment, the increase or decrease in the capacitance value of the capacitive sensor is calculated to identify the type of heat source transferring heat to the capacitive sensor. The principle employed is shown in FIG4 . As can be seen from FIG4 , heat radiation only responds to temperature, meaning only the temperature changes, without a capacitance response. Convection and conduction, on the other hand, respond to both temperature and capacitance.

[0078] The calculation process of the ion relaxation time ι in step S200 is as follows: the ion relaxation time ι is equal to the bulk capacitance C multiplied by the bulk resistance R. That is, ι=RC.

[0079] Figure 5 shows the Bode plots of the ion gel at different temperatures. From Figure 5, it can be seen that the only factor affecting the ion relaxation time ι is temperature, and the ion relaxation time ι is not affected by pressure, where pressure comes from the pressure stimulation generated by direct contact between the heat source corresponding to heat conduction and the object.

[0080] The straight line in Figure 5 (A) was obtained by measuring the impedance of a capacitive temperature sensor. This impedance is obtained by connecting the sensor's upper and lower electrodes to the fixture of a precision impedance analyzer. The diagonal line was also obtained by measuring the parameters of the capacitive temperature sensor. The frequency at the intersection of the diagonal line and the straight line is the ion relaxation frequency, and the reciprocal of the ion relaxation frequency is the ion relaxation time. The straight line and diagonal line in Figure 5 (B) were drawn in the same manner.

[0081] In one embodiment, step S300 includes the following specific steps S301, S302, and S303:

[0082] S301, based on the ion relaxation time ι, determine the temperature value T at each moment corresponding to the external temperature. ln(ι)=4752.53 / T+26.90931

[0083] The value range of T in the formula is between -20℃ and 180℃, that is, only when the external temperature T is within the above range can the specific value of T be calculated using this formula.

[0084] Since ι=RC, ln(ι)=4752.53 / T+26.90931 can be rewritten as the following formula: ln(RC)=4752.53 / T+26.90931

[0085] The reason why the temperature value T can be calculated using the bulk capacitance C and bulk resistance R is that changes in the temperature value T will cause changes in the bulk capacitance C, bulk resistance R, and ln(ι). In other words, there is a corresponding relationship between C, R, and ln(ι) and the temperature value T. This corresponding relationship can be shown in Figure 6, where Figure 6A shows the bulk resistance R at different temperatures T; Figure 6B shows the bulk capacitance C at different temperatures; and Figure 6C shows the ion relaxation time ι at different temperatures.

[0086] Figure 7 shows the response of the ion relaxation time ι when the temperature changes by 0.005°C.

[0087] The ion relaxation time ι has been calculated in step S200, that is, ι is known, and the temperature value T can be obtained by substituting ι into the above formula.

[0088] S302: Determine the temperature stability corresponding to the external temperature according to the temperature values ​​at each moment.

[0089] If the temperature value T changes greatly over time, it means that the temperature is not stable, otherwise it means that the temperature is stable. If the temperature of an object is stable, it means that there is no heat source to transfer heat to the object.

[0090] S303: When the temperature stability is unstable and the capacitance change information is zero, determine that the heat source type is thermal radiation.

[0091] As shown in A of Figure 8 , A represents ln(ι) and capacitance C generated by thermal radiation. When ln(ι), which represents the temperature, changes, ln(ι) will respond. Conversely, the change in external temperature can be inferred based on the response of ln(ι).

[0092] As shown in FIG9 , thermal radiation only causes a response of ln(ι) without causing a normalized capacitance ΔC / C0, where ΔC is the capacitance change of the capacitive temperature sensor and C0 is the original capacitance of the capacitive temperature sensor.

[0093] As shown in Figure 10, when the capacitive temperature sensor receives only external pressure stimulation, its normalized capacitance changes accordingly, while the ion relaxation time remains unchanged. Conversely, when only the normalized capacitance of the capacitive temperature sensor changes while the ion relaxation time remains unchanged, it can be determined that the pressure stimulation received by the capacitive temperature sensor is from a non-thermal source, rather than from a thermal source.

[0094] When the temperature stability is unstable and the capacitance change information is a positive capacitance change, it is determined that the heat source type is heat convection.

[0095] As shown in Figure 8B, the temperature-sensitive ion relaxation time and pressure-sensitive forward capacitance of the multimodal temperature sensor (capacitive temperature sensor) change, indicating that the heat source is convection. ΔC / C0 in Figure 8B is always greater than zero, indicating a positive capacitance change. Although ΔC / C0 in Figure 8B is less than zero, this is due to oscilloscope disturbances. The positive change in ΔC / C0 is shown in Figure 11.

[0096] When the temperature stability is unstable and the capacitance change information shows alternating negative capacitance changes and positive capacitance changes, it is determined that the heat source type is heat conduction.

[0097] As shown in C in Figure 8, the multimodal temperature sensor's temperature-sensitive ion relaxation time, proximity-sensitive negative capacitance, and pressure-sensitive positive capacitance change, indicating that the heat source is heat conduction. The ΔC / C0 on C in Figure 8 can be greater than or less than zero. A value less than zero corresponds to a negative capacitance change, while a value greater than zero corresponds to a positive capacitance change. The negative change in ΔC / C0 is shown in Figure 12.

[0098] In summary, the multimodal thermal sensing signal model based on heat source signal differences proposed in the present invention can accurately distinguish and identify heat sources under the three heat transfer modes of thermal radiation, thermal convection and thermal conduction, and can be used to design temperature sensors.

[0099] The multimodal temperature sensor prepared by the present invention has a good linear response to temperature stimulation, and has not only an ultra-wide working range but also ultra-high precision.

[0100] The multimodal temperature sensor prepared by the present invention can decouple the temperature signal and the pressure signal by utilizing the temperature-sensitive ion relaxation time τ and the pressure-sensitive normalized capacitance ΔC / C0. Combined with the proximity sensing capability of the capacitive sensor itself, it realizes multi-dimensional perception of the heat source signal.

[0101] The multimodal sensor fabricated by this invention demonstrated different response signals under different heat sources in heat source testing experiments, enabling heat source identification. Thermal radiation responds only to temperature; thermal convection responds to temperature and produces a positive capacitance change due to pressure stimulation; and thermal conduction responds to temperature, with a negative capacitance change due to proximity stimulation and a positive capacitance change due to pressure stimulation.

[0102] This embodiment also provides a heat source type identification device, as shown in FIG13 , which includes the following components:

[0103] The information acquisition module 01 is used to acquire the body capacitance and body resistance of the capacitive temperature sensor during the process of the capacitive temperature sensor sensing the external temperature, and determine the capacitance change information of the body capacitance;

[0104] an ion relaxation time calculation module 02, configured to determine the ion relaxation time of the ion gel on the capacitive temperature sensor based on the body capacitance and the body resistance;

[0105] The identification module 03 is configured to identify the type of heat source corresponding to the external temperature based on the capacitance change information and the ion relaxation time.

[0106] Based on the above embodiments, the present invention also provides a terminal device, whose principle block diagram can be shown in Figure 14. The terminal device includes a processor, a memory, a network interface, and a display screen connected via a system bus. Among them, the processor of the terminal device is used to provide computing and control capabilities. The memory of the terminal device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system and a computer program. The internal memory provides an environment for the operation of the operating system and computer program in the non-volatile storage medium. The network interface of the terminal device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, a heat source type identification method is implemented. The display screen of the terminal device can be a liquid crystal display or an electronic ink display.

[0107] Those skilled in the art will understand that the principle block diagram shown in Figure 14 is only a block diagram of a partial structure related to the solution of the present invention, and does not constitute a limitation on the terminal device to which the solution of the present invention is applied. The specific terminal device may include more or fewer components than shown in the figure, or combine certain components, or have a different component arrangement.

[0108] In one embodiment, a terminal device is provided. The terminal device includes a memory, a processor, and a heat source type identification program stored in the memory and executable on the processor. When the processor executes the heat source type identification program, the following operating instructions are implemented:

[0109] In the process of the capacitive temperature sensor sensing the external temperature, collecting the body capacitance and body resistance of the capacitive temperature sensor, and determining capacitance change information of the body capacitance;

[0110] determining an ion relaxation time of the ion gel on the capacitive temperature sensor based on the bulk capacitance and the bulk resistance;

[0111] The type of heat source corresponding to the external temperature is identified based on the capacitance change information and the ion relaxation time.

[0112] Those skilled in the art will appreciate that all or part of the processes in the above-described embodiments can be implemented by instructing the relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage medium. When executed, the computer program can include the processes of the above-described embodiments. Among them, any reference to memory, storage, database or other media used in the embodiments provided by the present invention can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM) or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct RAM bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM).

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for identifying heat source types, characterized in that: include: In the process of the capacitive temperature sensor sensing the external temperature, collecting the body capacitance and body resistance of the capacitive temperature sensor, and determining capacitance change information of the body capacitance; determining an ion relaxation time of the ion gel on the capacitive temperature sensor based on the bulk capacitance and the bulk resistance; The type of heat source corresponding to the external temperature is identified based on the capacitance change information and the ion relaxation time.

2. The heat source type identification method according to claim 1, characterized in that: The determining capacitance change information of the body capacitance includes: Determining information about an increase or decrease in capacitance value of the bulk capacitor over time; The positive and negative change directions of the bulk capacitance are determined according to the increase and decrease information of the capacitance value over time, and the positive and negative change directions are used as the capacitance change information.

3. The heat source type identification method according to claim 1, characterized in that: The determining, based on the volume capacitance and the volume resistance, the ion relaxation time of the ion gel on the capacitive temperature sensor includes: Multiplying the bulk capacitance by the bulk resistance yields the ion relaxation time.

4. The heat source type identification method according to claim 1, wherein: The identifying the type of heat source corresponding to the external temperature based on the capacitance change information and the ion relaxation time includes: Determining the temperature value at each moment corresponding to the external temperature based on the ion relaxation time; Determining the temperature stability corresponding to the external temperature based on the temperature values at each moment; The type of heat source corresponding to the external temperature is identified based on the temperature stability and the capacitance change information.

5. The heat source type identification method according to claim 4, characterized in that: The identifying the type of heat source corresponding to the external temperature based on the temperature stability and the capacitance change information includes: When the temperature stability is unstable and the capacitance change information is zero, determining that the heat source type is thermal radiation; Alternatively, when the temperature stability is unstable and the capacitance change information is a positive capacitance change, determining that the heat source type is thermal convection; Alternatively, when the temperature stability is unstable and the capacitance change information shows alternating negative capacitance change and positive capacitance change, the heat source type is determined to be heat conduction.

6. The heat source type identification method according to claim 1, characterized in that: The preparation method of the capacitive temperature sensor includes: Using methoxy polyethylene glycol acrylate as a solvent and lithium bispentafluoroethylsulfonyl imide as a solute, stirring and mixing to form a mixture; placing the mixture on a first electrode and curing the mixture until the mixture is cured into an ion gel; A second electrode is attached to the ion gel to form a capacitive temperature sensor.

7. The heat source type identification method according to claim 1, wherein: The capacitive temperature sensor test method includes: performing heat transfer between the capacitive temperature sensor and a test heat source of a known heat source type, collecting a test body capacitance and a test body resistance of the capacitive temperature sensor, and determining test capacitance change information of the test body capacitance; determining an ion relaxation test time of the ion gel on the capacitive temperature sensor according to the test body capacitance and the test body resistance; Determining a heat source test type for the external temperature based on the test capacitance change information and the ion relaxation test time; A test result for the capacitive temperature sensor is obtained according to the heat source test type and the known heat source type.

8. A heat source type identification device, characterized in that: The device comprises the following components: An information acquisition module, configured to acquire the body capacitance and body resistance of the capacitive temperature sensor during the process of the capacitive temperature sensor sensing the external temperature, and determine capacitance change information of the body capacitance; an ion relaxation time calculation module, configured to determine the ion relaxation time of the ion gel on the capacitive temperature sensor based on the body capacitance and the body resistance; An identification module is used to identify the type of heat source corresponding to the external temperature based on the capacitance change information and the ion relaxation time.

9. A terminal device, characterized in that: The terminal device includes a memory, a processor, and a heat source type identification program stored in the memory and executable on the processor. When the processor executes the heat source type identification program, the steps of the heat source type identification method according to any one of claims 1 to 7 are implemented.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a heat source type identification program, and when the heat source type identification program is executed by the processor, the steps of the heat source type identification method according to any one of claims 1 to 7 are implemented.

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