Dual-mode multi-sensory thermal detector

Abstract

This invention discloses a dual-mode multi-sensory thermal detector for teaching, belonging to the field of science education instruments. The device includes a main control unit, a dual-channel contact temperature sensing module, a non-contact infrared thermal imaging sensing module, a display module, an audio feedback module, and a mode selection module. The device offers two teaching modes: temperature curve observation and multi-sensory thermal imaging feedback. In thermal imaging mode, the device drives a buzzer to produce graded, audible feedback sounds based on the rate of temperature change; the faster the temperature change, the faster the buzzer frequency, achieving simultaneous multi-sensory perception of heat changes. This invention is particularly suitable for use in elementary school science classrooms, presenting the abstract concept of heat in a visual and auditory way, enhancing the intuitiveness and interest of teaching.

Description

Technical Field

[0001] This invention relates to the field of science education instruments, and more specifically, to a dual-mode multi-sensory heat detector designed specifically for elementary school science classes to explore heat transfer phenomena. Background Technology

[0002] In elementary school science courses, "heat transfer" is a core but abstract and challenging teaching point. Current textbooks commonly use experimental methods such as "applying Vaseline to a metal sheet and observing its melting" or "placing spoons of different materials in hot water and feeling the temperature change." These experiments have the following inherent flaws:

[0003] The phenomena are not intuitive: Students cannot directly observe the dynamic process of heat transfer. They can only infer the heat transfer process through indirect and delayed phenomena, such as applying Vaseline to a metal sheet and inferring the heat transfer process based on the path of Vaseline melting. The cognitive path is long and the understanding is not deep.

[0004] Lack of quantitative data: Experiments rely on subjective feelings and cannot provide accurate data on temperature changes and trends, making it difficult to conduct scientific quantitative analysis and comparison.

[0005] Limited sensory dimensions: Teaching feedback relies mainly on visual input, making it difficult to engage students' multiple sensory channels for collaborative cognition, which is not conducive to stimulating learning interest and deepening memory.

[0006] Although some teaching instruments that incorporate temperature sensors have appeared on the market, they usually only provide digital readings or simple curves, and still cannot visualize the spatial distribution of the heat transfer process or make the rate of change over time audible, thus failing to fundamentally solve the aforementioned teaching dilemmas.

[0007] Multisensory learning theory based on neuroscience indicates that simultaneously inputting information through multiple sensory channels such as vision and hearing can more effectively activate relevant cortical areas of the brain, reduce cognitive load, and promote concept comprehension and long-term memory. Therefore, there is an urgent need for a new type of teaching instrument that can transform the abstract process of heat transfer into an intuitive, concrete, interactive, and multisensory experience to improve teaching effectiveness.

[0008] There is currently no effective solution to the above problems. Summary of the Invention

[0009] This invention provides a dual-mode, multi-sensory heat detector to at least address the technical problems in existing primary school science heat transfer experiments, such as unintuitive phenomena, unquantifiable data, and limited sensory feedback.

[0010] According to one aspect of the present invention, a dual-mode multi-sensory heat detection teaching device is provided. The device includes: a main control unit; a dual-channel contact temperature sensing module connected to the main control unit for contact temperature measurement; a non-contact infrared thermal imaging sensing module connected to the main control unit for acquiring heat distribution data; a display module connected to the main control unit for displaying temperature data, temperature change curves, and heat maps; an audio feedback module connected to the main control unit for generating audible prompts, the module being equipped with an independent switch; a mode selection module connected to the main control unit for receiving mode switching commands from the user; and a power supply module for supplying power to each module; wherein the device has at least two teaching modes that can be switched via the mode selection module.

[0011] Furthermore, the preset temperature-color mapping relationship is a temperature-color mapping gradient table, which defines a continuous color transition from low temperature to high temperature. The main control unit maps the temperature value to the corresponding color value according to the temperature-color mapping gradient table to generate the heat map.

[0012] Furthermore, the aforementioned sound feedback module is configured to: in thermal imaging mode, drive the buzzer to generate different frequencies of prompt sounds based on the detected temperature change rate; the temperature change rate is positively correlated with the buzzer frequency, and the greater the temperature change rate, the faster the buzzer frequency.

[0013] Furthermore, the aforementioned main control unit has a pre-stored temperature change rate-buzzer parameter mapping table, which includes multiple response levels. Each level corresponds to a temperature change rate range and a buzzer frequency. When the temperature change rate falls into a certain level range, the buzzer is controlled to sound at the frequency corresponding to that level.

[0014] Furthermore, the aforementioned contact temperature sensing module includes two waterproof encapsulated temperature probes, and the aforementioned display module is configured to simultaneously display two temperature-time change curves.

[0015] Furthermore, the aforementioned sound feedback module is a passive buzzer, which is driven to emit sound by the aforementioned main control unit by generating a square wave signal of a specific frequency.

[0016] According to another aspect of the present invention, a heat detection teaching method based on the above-described apparatus is also provided. The method includes the following steps: switching between a temperature curve observation mode and a thermal imaging multi-sensory feedback mode in response to a mode selection command; in the temperature curve observation mode, acquiring dual-channel contact temperature data and displaying the temperature values ​​and change curves in real time; in the thermal imaging multi-sensory feedback mode, acquiring infrared thermal image data and converting it into a temperature distribution array; converting the temperature data into color information according to a preset temperature-color mapping relationship, generating and displaying a dynamic heat map; and calculating the temperature change rate when the sound feedback module is switched on, and driving the sound feedback module to generate corresponding auditory feedback according to a preset response rule.

[0017] The working principle, innovations, and beneficial effects of this invention are as follows:

[0018] The aforementioned main control unit is programmed to execute two sets of core algorithm processes, corresponding to two teaching modes. Furthermore, the main control unit pre-stores the necessary "temperature-color mapping relationship" and "temperature change rate-sound response mapping relationship" to implement the above functions.

[0019] 1. In temperature curve observation mode, the main control unit periodically reads precise data from the dual-channel contact temperature sensing module and plots and updates two independent temperature-time change curves in real time on the display module. This mode focuses on precise, time-based quantitative analysis of the heat transfer process.

[0020] 2. In thermal imaging multi-sensory feedback mode, the main control unit performs the following collaborative processing:

[0021] Visualization Processing: The system reads the two-dimensional temperature distribution array obtained from the non-contact infrared thermal imaging sensor module, converts the temperature values ​​into corresponding color values ​​in real time according to the internally preset temperature-color mapping relationship, and renders a dynamically updated color thermal map on the display module. This makes the invisible heat and its direction and range of transmission in space clearly visible.

[0022] Auralization Processing: The rate of temperature change for the entire system or a region of interest is calculated synchronously across consecutive thermal imaging frames. Based on a pre-defined temperature change rate-sound response mapping relationship, the calculated rate of change is mapped to a specific sound frequency. This mapping relationship follows the core design principle of a positive correlation between the rate of temperature change and the auditory feedback frequency. Its implementation can be based on a pre-defined piecewise linear mapping or a continuous function mapping, thereby transforming the abstract rate of change into an intuitive change in pitch. Those skilled in the art can determine the specific mapping parameters through limited conventional experiments, based on the perceptual abilities of the target student group and the expected temperature change range of the specific teaching experiment.

[0023] Users can switch between the two modes with a single click via the mode selection module. This allows the device to perform both rigorous quantitative data recording and analysis, and to provide intuitive qualitative spatial perception and a rich, multi-sensory immersive experience.

[0024] Based on the same inventive concept, the present invention also provides a heat detection teaching method, the steps of which correspond to the workflow of the device and also rely on the above-mentioned preset mapping relationship to realize the above-mentioned dual-mode multi-sensory teaching function.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. Transforming the abstract into the concrete: Infrared thermal imaging technology visualizes the invisible heat distribution in real time in the form of a color heat map, allowing students to "see" the transfer of heat, which greatly enhances the intuitiveness of teaching.

[0027] Achieving multi-sensory synergy: The temperature change rate is innovatively mapped into a variable auditory signal, constructing a dual-channel feedback of "visual (thermal map) + auditory (change prompt sound)", which conforms to the cognitive laws of multi-sensory learning and effectively promotes students' deep understanding and memory of the concept of "direction and rate of heat conduction".

[0028] 2. Balancing quantitative and qualitative aspects: Integrating dual-channel high-precision temperature sensing and thermal imaging sensing, a single device can perform both precise quantitative experiments (such as recording temperature change curves) and vivid qualitative observations (such as observing the diffusion of heat in metals). It has a high degree of functional integration and wide applicability in teaching.

[0029] 3. Stimulate interest in exploration: Dynamic images and interactive sound feedback can strongly attract the attention of primary school students, stimulate their curiosity and desire to explore actively, transform passive acceptance into active exploration, and enhance the fun and interactivity of science classes. Attached Figure Description

[0030] The accompanying drawings, which are included to provide a further understanding of the invention and form part of this application, illustrate exemplary embodiments of the invention and, together with their description, serve to explain the invention and do not constitute an undue limitation thereof. In the drawings:

[0031] Figure 1 This is a block diagram of the hardware system composition of the dual-mode multi-sensory heat detection teaching device provided in an embodiment of the present invention;

[0032] Figure 2 This is a three-dimensional schematic diagram of the external structure of the device provided in an embodiment of the present invention;

[0033] Figure 3These are schematic diagrams of user interfaces under two teaching modes provided in the embodiments of the present invention; wherein, (a) is the interface of the temperature curve observation mode, and (b) is the interface of the thermal imaging multi-sensory feedback mode.

[0034] Figure 4 Simplified schematic diagram of system circuit connection;

[0035] Figure 5 This is a flowchart illustrating the working method of a dual-mode multi-sensory thermal detection device. Detailed Implementation

[0036] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Example 1

[0039] According to an embodiment of the present invention, a structural embodiment of a dual-mode multi-sensory heat detection teaching device is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0040] I. Overview of System Hardware Configuration

[0041] Figures 1 to 4 The hardware composition of the dual-mode multi-sensory heat detection teaching device provided in this embodiment of the invention is illustrated. Specifically, Figure 1 The hardware system composition block diagram of the dual-mode multi-sensory heat detection teaching device provided in the embodiments of the present invention is as follows: Figure 1 As shown in the figure, the dual-mode multi-sensory heat detection teaching device provided in this embodiment of the invention mainly consists of a main control unit, a dual-channel contact temperature sensing module, a non-contact infrared thermal imaging sensing module, a display module, an audio feedback module, its independent switch, a mode selection module, and a power supply module. The functions and connections of each module are as follows:

[0042] Main control unit (1): As the core processor of the device, it is responsible for coordinating the work of all modules, executing data acquisition, algorithm calculation (such as temperature-color mapping, rate of change calculation) and control logic, and establishing connections with each sensing module, display module and interactive module through its I / O ports and communication interfaces (such as I2C, SPI) to form a complete measurement and feedback system.

[0043] Dual-channel contact temperature sensing module (2): Used to achieve accurate measurement of contact, single-point temperature. This module contains two independent, waterproof-encapsulated digital temperature sensors.

[0044] Non-contact infrared thermal imaging sensor module (3): used to acquire two-dimensional temperature distribution information of the surface of the object being measured, and its output is a data array containing multiple temperature points.

[0045] Display module (4): used to present a graphical user interface, displaying temperature values, curves and heat maps.

[0046] Sound feedback module (5): It is used to generate audible prompts according to the instructions of the main control unit, and is usually composed of a buzzer and related drive circuits.

[0047] Independent switch for sound feedback module (6): A physical switch that allows users to enable or disable the sound feedback function globally according to the needs of the teaching environment.

[0048] Mode selection module (7): A user interaction interface (such as a button) used to send mode switching instructions to the main control unit.

[0049] Power module (8): Provides a stable DC operating voltage for the entire system.

[0050] II. Detailed Explanation of System Working Principles and Workflow

[0051] After the device is powered on and initialized, the main control unit (1) enters the standby state, and its core workflow is as follows: Figure 5 As shown.

[0052] 1. Working principle of temperature curve observation mode (mode 1)

[0053] When the device switches to this mode, the display module (4) displays as shown below. Figure 3The user interface shown in (a) mainly includes the following functional areas:

[0054] ① Mode Identifier Area: Displays the current working mode, such as "Temperature Curve Observation Mode".

[0055] ② Real-time temperature display area: Dynamically displays the current temperature values ​​T1 and T2 collected by the dual probes.

[0056] ③ Temperature coordinate axis: A rectangular coordinate system that forms the temperature-time curve.

[0057] ④ Temperature curve A: The real-time change trajectory plotted based on the measurement data from probe 1.

[0058] ⑤ Temperature curve B: The real-time change trajectory plotted based on the measurement data from probe 2.

[0059] Data acquisition: The main control unit (1) periodically (e.g., several times per second) reads the real-time temperature values ​​(T_A, T_B) of the two probes (probe A, probe B) from the dual-channel contact temperature sensing module (2).

[0060] Data shows that the temperature readings are updated in real time in the "Real-time Temperature Display Area" of the interface.

[0061] Curve drawing: The main control unit (1) stores the temperature data read each time and the corresponding timestamp as data points, and dynamically draws and updates two curves ("temperature curve A" and "temperature curve B") in the "temperature coordinate axis" area with time as the horizontal axis and temperature as the vertical axis.

[0062] Teaching effectiveness: In this model, students can clearly see the precise trajectory and numerical relationship of temperature changes over time at two measurement points, much like observing an electrocardiogram. For example, in the experiment of "mixing hot and cold water," they can intuitively see the entire process of the hot water temperature curve continuously decreasing and the cold water temperature curve continuously increasing, eventually converging towards an equilibrium line, thus achieving quantitative empirical evidence of the heat transfer process.

[0063] 2. Working principle of thermal imaging multi-sensory feedback mode (second mode)

[0064] When the device switches to this mode, the display module (4) displays as shown below. Figure 3 (b) shows the user interface.

[0065] This interface mainly includes the following functional areas:

[0066] ⑥ Highest temperature display area: Dynamically displays the highest temperature value calculated from infrared thermal image data.

[0067] ⑦ Heatmap display area: The core area of ​​the interface, used to render and display dynamic color heatmaps.

[0068] ⑧ High-temperature area diagram: In the heat map, high-temperature areas are indicated by a high-density dot matrix of warm colors (such as red).

[0069] ⑨ Low temperature region illustration: In the heat map, low temperature regions are indicated by a low-density dot matrix of cool colors (such as blue).

[0070] This mode executes two parallel processing logics simultaneously: visualization and audibility.

[0071] (1) Heat visualization process

[0072] Temperature distribution data acquisition: The main control unit (1) periodically reads a frame of two-dimensional temperature distribution array data from the non-contact infrared thermal imaging sensor module (3). The array consists of M×N (e.g., 32×24) discrete temperature points, which comprehensively characterize the temperature field of the surface of the object being measured.

[0073] Temperature-Color Mapping Relationship: To transform intangible temperature data into intuitive visual images, the main control unit (1) has a pre-stored "temperature-color mapping relationship table". This table defines a continuous color transition from low temperature to high temperature. Its core design principle is to construct a continuous color space that smoothly transitions from cool tones (green series) to warm tones (red series) by precisely controlling the numerical changes of red (R) and green (G) components, thereby visually forming a clear sense of heat gradient. This mapping relationship can be defined based on the temperature measurement range of a specific teaching scenario. For example, for a typical teaching range of 25°C to 100°C, a specific and feasible mapping representation is as follows:

[0074] Temperature range (°C) Color component R (red) Color component G (green) Rendering color description (visual intent) 25.0~30.0 0 255 Dark green (representing the starting point of low temperature) 30.0~35.0 32 255 yellow-green 35.0~40.0 64 255 light yellow-green ... ... ... ...(continuously changing intervals in the middle) 65.0~70.0 255 127 Red-orange ... ... ... ...(continuously changing intervals in the middle) 90.0~95.0 255 8 Darker red 95.0~100.0 255 0 Pure red (represents the upper limit of high temperature)

[0075] Note: The table above is an example. In actual implementation, the main control unit (1) can generate the precise color corresponding to any temperature value by calculation or a denser lookup table based on the linear or nonlinear relationship between the R and G components and temperature. For temperatures below the lowest range or above the highest range, they can be mapped to fixed cool colors (such as dark blue) or warm colors (such as white), respectively.

[0076] Real-time rendering of the heat map: For each data point T(x,y) in the acquired temperature array, the main control unit (1) performs a query or calculation: Based on the value of T(x,y) and the pre-stored mapping relationship, it determines the corresponding color value Color(R,G). Subsequently, the main control unit (1) drives the display module (4) to map each temperature data point onto a color block composed of one or more pixels in the "heat map display area" of the screen, and fills it with a determined color, thereby converting the entire temperature data array into a color image reflecting the temperature level and spatial distribution in real time. This image is the dynamic heat map. High temperature areas are displayed as red / orange, low temperature areas are displayed as green, and the intermediate transition colors are smoothly connected, making the direction, range and intensity gradient of heat transfer clear at a glance.

[0077] Visualized teaching effect: Through the precise color mapping and real-time rendering described above, this device transforms abstract temperature field data into visual information that aligns with human intuition. Students can directly "see" the distribution of heat on objects: the heat source appears in a striking warm color, and as the heat diffuses, the warm-colored area gradually extends towards the surrounding cool-colored area. This process transforms the invisible concept of "heat conduction" into an intuitive, dynamic, and traceable visual phenomenon, completely changing the traditional teaching model that relies on indirect inference.

[0078] (2) The process of making the rate of change audible

[0079] Change rate calculation: The main control unit (1) acquires continuous temperature distribution array data at a fixed sampling period (e.g., synchronized with the frame rate of the infrared thermal imaging sensor module (3), typically 1 second). To achieve an intuitive and efficient quantitative characterization of the dynamic intensity of heat transfer, the system extracts a key parameter in each frame of data: the highest temperature value in the current frame. This value reflects the most active hot spot area on the surface of the object being measured. The specific calculation of the change rate is achieved through the inter-frame difference method: The main control unit (1) records the highest temperature value T_max_prev of the previous frame and compares it with the highest temperature value T_max_curr of the current frame, calculating the absolute difference ΔT=|T_max_curr-T_max_prev| between the two. Since the data acquisition period is fixed at T seconds (e.g., 1 second in the previous example), this temperature difference ΔT essentially represents the rate of temperature change in T units of time (unit: ℃ / T), which can be directly used as a rate parameter to characterize the speed of heat transfer. This method can directly capture the most significant temperature change signal of the object being measured, with high calculation efficiency and obvious feedback perception.

[0080] Sound mapping relationship and query: The main control unit (1) has a "temperature change rate - sound response mapping table" pre-stored inside. This mapping table is designed based on the principles of pedagogy and auditory perception. Its core is to divide the numerical range of the temperature change rate ΔT into several continuous or discrete intervals and map each interval to a set of specific sound synthesis parameters. These parameters include at least the fundamental frequency of the buzzer (unit: Hz) and can be extended to include the duration of a single prompt tone, repetition interval, etc., to enrich the layers of auditory feedback. For example, a basic mapping design can be shown in Table 1, following the principle that "the higher the change rate, the higher the mapped buzzer frequency, and the more rapid the prompt tone rhythm may be":

[0081] Table 1. Example of Temperature Change Rate-Sound Response Mapping

[0082] Range of rate of change ΔT (representing °C / T) Auditory feedback description Mapping beep frequency (Hz) 0.5 ≤ ΔT < 1.5 Slow changes, low-frequency hum 800 1.5 ≤ ΔT < 3.0 Medium variation, mid-frequency sound 1500 3.0 ≤ ΔT < 5.0 Rapid changes, high-frequency whistling 2800 ΔT ≥ 5.0 Dramatic changes, extremely high frequency continuous ringing 4000

[0083] The main control unit (1) queries this mapping table based on the calculated real-time change rate ΔT, determines its interval, and obtains the corresponding sound synthesis parameters.

[0084] Auditory feedback generation and synchronization: The main control unit (1) drives the sound feedback module (5) to generate corresponding prompts based on the parameters obtained from the query. To ensure that the auditory feedback and the visual heat map are strictly corresponding in time, the system uses a unified timestamp or frame sequence identifier for synchronization. When the main control unit (1) processes the Nth frame data and generates the heat map, it triggers the sound feedback based on the rate of change ΔT calculated from the Nth frame and the N-1th frame data. This allows students to see the spatial distribution of heat on the screen (Nth frame heat map) and hear the sound reflecting the speed of heat change at this moment (based on the rate calculated from the Nth frame and the previous frame) from the buzzer at the same observation time, realizing cross-sensory information alignment and reinforcement. If the independent switch (6) of the sound feedback module is in the off state, this auditory feedback process is disabled.

[0085] (3) Multi-sensory collaborative teaching effect

[0086] In the second mode, students receive two types of sensory information simultaneously:

[0087] Visual channel: Observe the color thermal map that dynamically spreads or contracts on the screen to intuitively understand the spatial process of "heat being transferred from high temperature to low temperature".

[0088] Auditory pathway: Listen to the buzzing sound that changes as the experiment progresses. For example, when a metal sheet is heated at a single point with an alcohol lamp, a high-pitched and rapid buzzing sound will be heard; after the heat source is removed, as the temperature change slows down, the buzzing sound will also decrease in pitch and become more even. This allows students to directly "hear" the rhythm of heat transfer.

[0089] This dual-channel synchronous stimulation of "what you see is what you hear" greatly enhances students' embodied cognition of abstract thermal concepts and effectively solves the pain points of traditional experimental phenomena being lagging behind and having a single perception.

[0090] III. Examples of Experimental Teaching Applications

[0091] The following two typical experiments illustrate how this device can be applied in practical teaching:

[0092] Experiment 1: Investigating Heat Conduction in Metals (Using Mode 2)

[0093] The teacher set the device to "thermal imaging multi-sensory feedback mode".

[0094] The students used an alcohol lamp to heat one end of a metal sheet.

[0095] All students looked at the heat map on the display module, where they could clearly see the red area representing high temperature starting from the heating point and gradually spreading to the other end of the metal sheet and the surrounding area.

[0096] Students simultaneously heard that the buzzer emitted a high-frequency, rapid sound in the early stages of heating; as heating continued, the rate of temperature change tended to stabilize, and the sound frequency may have remained at a high but stable level; when the heat source was removed, the sound frequency gradually decreased.

[0097] The teacher guides students to connect the synchronous changes in vision and hearing, and to summarize the conclusion that "heat is transferred from places with high temperature to places with low temperature, and the transfer rate is fastest in the initial stage."

[0098] Experiment 2: Investigating the thermal equilibrium when hot and cold water are mixed (using mode 1)

[0099] The teacher set the device to "temperature curve observation mode".

[0100] Insert the two temperature probes into a small beaker containing hot water and an outer container of cold water, respectively.

[0101] Students simultaneously see two real-time changing curves and precise temperature values ​​on the display module: the hot water temperature curve continues to decrease, while the cold water temperature curve continues to increase.

[0102] After a period of time, the two curves gradually approach each other and eventually reach equilibrium near the same temperature value, forming a plateau.

[0103] Based on continuous quantitative data, students irrefutably concluded that "heat is transferred from hot water to cold water until the two are at the same temperature."

[0104] This invention, through ingenious hardware integration and software algorithm design, creatively combines infrared thermal imaging visualization technology with auditory feedback technology based on the rate of change, constructing a dual-mode, multi-sensory scientific inquiry tool. It not only makes invisible heat "visible" and "audible," but also supports a comprehensive scientific inquiry process from sensory understanding to rational analysis through the free switching between quantitative and qualitative modes, significantly enhancing the effectiveness and engagement of elementary school science teaching on "heat transfer."

[0105] The sequence numbers of the above embodiments of the present invention are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0106] In the above embodiments of the present invention, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0107] In the several embodiments provided in this application, it should be understood that the disclosed technical content can be implemented in other ways. The device embodiments described above are merely illustrative; for example, the division of units can be a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the displayed or discussed mutual coupling, direct coupling, or communication connection may be through some interfaces; the indirect coupling or communication connection between units or modules may be electrical or other forms.

[0108] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0109] Furthermore, the functional units in the various embodiments of the present invention can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0110] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, read-only memory (ROM), random access memory (RAM), portable hard drives, magnetic disks, or optical disks.

[0111] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dual-mode multi-sensory thermal detector, characterized in that, include: Main control unit; A dual-channel contact temperature sensing module is connected to the main control unit and is used for contact temperature measurement. A non-contact infrared thermal imaging sensor module is connected to the main control unit and is used to acquire thermal distribution data; The display module, connected to the main control unit, is used to display temperature data, temperature change curves, and heat maps; A sound feedback module, connected to the main control unit, is used to generate audible prompts. This module is equipped with an independent switch. The mode selection module, connected to the main control unit, is used to receive the user's mode switching command; The power module supplies power to all modules; The device has at least two teaching modes that can be switched via the mode selection module.

2. The apparatus according to claim 1, characterized in that, The preset temperature-color mapping relationship is a temperature-color mapping gradient table, which defines a continuous color transition from low temperature to high temperature. The main control unit maps temperature values ​​to corresponding color values ​​according to the temperature-color mapping gradient table to generate the heat map.

3. The apparatus according to claim 1, characterized in that, The sound feedback module is configured to: in thermal imaging mode, drive the buzzer to produce different frequencies of prompt sounds based on the detected temperature change rate. The temperature change rate is positively correlated with the buzzer frequency; the greater the temperature change rate, the higher the buzzer frequency.

4. The apparatus according to claim 2, characterized in that, The main control unit has a pre-stored temperature change rate-buzzer parameter mapping table, which includes multiple response levels. Each level corresponds to a temperature change rate range and a buzzer frequency. When the temperature change rate falls into a certain level range, the main control unit drives the buzzer to sound at the frequency corresponding to that level.

5. The apparatus according to claim 1, characterized in that, The contact temperature sensing module includes two waterproof encapsulated temperature probes, and the display module is configured to simultaneously display two temperature-time change curves.

6. The apparatus according to claim 1, characterized in that, The sound feedback module is a passive buzzer, and the main control unit drives it to emit sound by generating a square wave signal of a specific frequency.

7. The heat detection teaching method of the device according to any one of claims 1-6, characterized in that, Includes the following steps: In response to mode selection commands, it switches between temperature profile observation mode and thermal imaging multi-sensory feedback mode; In the temperature curve observation mode, dual-channel contact temperature data is collected, and the temperature values ​​and change curves are displayed in real time. In the thermal imaging multi-sensory feedback mode, infrared thermal image data is acquired and converted into a temperature distribution array; according to the preset temperature-color mapping relationship, the temperature data is converted into color information to generate and display a dynamic heat map; When the sound feedback module is turned on, the temperature change rate can be calculated, and the sound feedback module can be driven to generate corresponding auditory feedback according to the preset response rules.

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