Multi-modal interactive demonstration method and system for stratum contact relation teaching

Abstract

The invention relates to the technical field of geological teaching instruments, in particular to a multi-mode interactive demonstration method and system for stratum contact relation teaching. The method comprises the following steps: acquiring placement data of a stratum demonstration module and sensing data of an intelligent base plate; the data is input into the multi-modal interactive demonstration system, the stratum contact relation type is recognized through the stratum type recognition module, an LED control signal is generated through the visual demonstration module to visualize the contact boundary line, and AR display content is generated through the augmented reality module; and outputting a multi-mode demonstration result through the output module. The system comprises an intelligent base plate, a stratigraphic relation demonstration module library, a processing unit and a display unit. According to the invention, through multi-sensor fusion and multi-modal feedback, the geological evolution process is dynamically visualized, and high-reproducibility interactive teaching of the stratum contact relationship is realized.

Description

Technical Field

[0001] This invention relates to the field of geological teaching instrument technology, specifically to a multimodal interactive demonstration method and system for teaching stratigraphic contact relationships. Background Technology

[0002] Teaching stratigraphic contact relationships is crucial for basic geology education. However, traditional teaching methods face significant challenges. Textbook illustrations, using two-dimensional planes, lack three-dimensional visualization and struggle to represent complex spatial structures. Physical models are bulky and difficult to transport, their limited variety fails to cover diverse geological scenarios, and static displays cannot demonstrate dynamic formation processes. Field trips are constrained by time, location, and safety factors, making it difficult to repeatedly demonstrate specific geological phenomena.

[0003] Stratigraphic contact relationships involve complex spatial structures, formation sequences, and dynamic evolution processes. Integrating geological concepts such as contact, parallel unconformity, and angular unconformity requires students to understand geological evolution processes spanning millions of years. Traditional teaching methods struggle to compress such long-term processes into observable demonstration sequences. Current technologies cannot simultaneously achieve precise spatial structure demonstrations and dynamic process visualizations, leading to difficulties in student comprehension and low teaching efficiency. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a multimodal interactive demonstration method and system for teaching stratigraphic contact relationships, aiming to improve the intuitiveness, interactivity, and repeatability of teaching stratigraphic contact relationships.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] On one hand, embodiments of the present invention provide a multimodal interactive demonstration method for teaching stratigraphic contact relationships, the method comprising the following steps:

[0007] The system acquires placement data of the formation demonstration module and sensing data of the smart substrate; wherein the smart substrate includes a pressure sensor grid, an NFC / RFID reader and an LED light strip matrix, the placement data includes module position data, module sequence data and module identity data, and the sensing data includes pressure distribution data and module identification data;

[0008] The placement data and sensing data are input into the multimodal interactive demonstration system, and the stratigraphic contact relationship type is identified through the stratigraphic type identification module to generate stratigraphic contact relationship identification results.

[0009] The visual demonstration module generates LED control signals based on the recognition results, and controls the LED light strip matrix to display the contact boundary and the stratum boundary.

[0010] The augmented reality module generates AR display content based on the recognition results; the output module outputs the LED control signal and AR display content to realize a multimodal demonstration of the stratigraphic contact relationship.

[0011] Optionally, acquiring the placement data of the formation demonstration module and the sensing data of the smart substrate includes:

[0012] Pressure sensor data is generated by detecting the placement and pressure distribution of the formation demonstration module through a pressure sensor grid.

[0013] The identity information of the formation demonstration module is read using an NFC / RFID reader to generate module identification data.

[0014] The tilt angle data of the base plate is obtained through a tilt adjustment device;

[0015] The pressure sensing data, module identification data, and tilt angle data are integrated into the sensing data.

[0016] Optionally, the step of identifying the type of stratigraphic contact relationship through the stratigraphic type identification module includes:

[0017] The type attribute of the stratigraphic demonstration module is determined based on the module identity data;

[0018] The spatial arrangement characteristics of the stratigraphic demonstration modules are determined based on the module location data and module sequence data.

[0019] Based on the type attributes and spatial arrangement characteristics, the stratigraphic contact relationship type is determined to be conformable contact, parallel unconformity, angular unconformity, or intrusive contact, and the stratigraphic contact relationship identification result is generated.

[0020] Optionally, the step of generating LED control signals based on the recognition result via the visual demonstration module includes:

[0021] When the identification result is integrated contact, a first LED control signal is generated to control the LED light strip matrix to display a continuous green light strip;

[0022] When the identification result is parallel non-integration, a second LED control signal is generated to control the LED light strip matrix to flash red light to the corresponding area of ​​the etched surface and then display a yellow light strip on the upper layer.

[0023] When the identification result is angular incoherence, a third LED control signal is generated to control the LED light strip matrix to display the angular difference between the lower inclined stratum and the upper horizontal stratum;

[0024] When the identification result is an intrusion contact, a fourth LED control signal is generated to control the LED light strip matrix to display an orange-red halo in the contact area between the intruder and the surrounding rock.

[0025] Optionally, the step of generating AR display content based on the recognition result using the augmented reality module includes:

[0026] The geological demonstration module is scanned using a camera to obtain image data of the module;

[0027] Based on the module image data and recognition results, pre-stored stratigraphic evolution animation data is retrieved;

[0028] The stratigraphic evolution animation data is overlaid on the module image data to generate AR display content.

[0029] Optionally, after outputting the LED control signal and AR display content through the output module, the method further includes:

[0030] The audio output device plays the voice explanation data corresponding to the recognition result, and the voice explanation data includes stratigraphic age information and sedimentary environment information.

[0031] The display shows textual descriptions and animated demonstrations of the geological formation process of stratigraphic contact relationships.

[0032] On the other hand, embodiments of the present invention provide a multimodal interactive demonstration system for teaching stratigraphic contact relationships, including:

[0033] The intelligent substrate includes a pressure sensor grid, an NFC / RFID reader, an LED light strip matrix, and a tilt adjustment device, used to detect the placement data of the formation demonstration module and generate sensor data. The formation demonstration module is obtained from the formation relationship demonstration module library.

[0034] The stratigraphic relationship demonstration module library includes a consolidation contact demonstration module, a parallel unconformity demonstration module, an angular unconformity demonstration module, and an intrusion contact demonstration module. Each module contains multiple layered cuboid modules and erosion surface modules, and the modules are connected by magnetic attraction.

[0035] A processing unit, wirelessly connected to the smart substrate, is used to execute the method described in any of the above-mentioned embodiments;

[0036] The display unit is used to display AR display content.

[0037] Optionally, the integrated contact demonstration module includes multiple layered cuboid modules of different colors, a magnetic connection device is provided at the bottom of the module, the contact surface of the module is a flat and smooth surface, and an NFC / RFID tag is provided on the surface of the module.

[0038] Optionally, the angle non-integration demonstration module includes a lower inclined stratum module, a middle erosion surface module, and an upper horizontal stratum module. The dip angle of the lower inclined stratum module is a preset fixed value, and the system is equipped with a transparent stratum angle measuring ruler.

[0039] On the other hand, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in any of the above-mentioned embodiments.

[0040] The beneficial effects of this invention are as follows: This invention discloses a multimodal interactive demonstration method and system for teaching stratigraphic contact relationships. It automatically identifies the placement status of the stratigraphic demonstration module through a pressure sensor grid and an NFC / RFID reader, visualizes stratigraphic contact relationships through an LED light strip matrix and AR technology, and dynamically demonstrates the geological evolution process through multimodal output. This method overcomes the limitations of traditional teaching methods in spatial structure expression and dynamic process demonstration, significantly improves teaching interactivity and student comprehension depth, and achieves highly reproducible laboratory teaching of stratigraphic contact relationships. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a flowchart illustrating a multimodal interactive demonstration method for teaching stratigraphic contact relationships in an embodiment of the present invention.

[0043] Figure 2 This is an overall architecture diagram of the multimodal interactive demonstration system in this embodiment of the invention;

[0044] Figure 3 This is a schematic diagram of the structure of the stratigraphic relationship demonstration module library in an embodiment of the present invention. Detailed Implementation

[0045] The following will provide a clear and complete description of the concept, specific structure, and technical effects of the present invention in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, solution, and effects of the present invention. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0046] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In the following description, when referring to the accompanying drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the embodiments of this invention; they are merely examples of apparatuses and methods consistent with some aspects of the embodiments of this invention as detailed in the appended claims.

[0047] It is understood that the terms “first,” “second,” etc., used in this invention may be used herein to describe various concepts, but unless specifically stated otherwise, these concepts are not limited by these terms. These terms are used only to distinguish one concept from another. For example, first information may also be referred to as second information without departing from the scope of embodiments of the invention, and similarly, second information may also be referred to as first information. Depending on the context, the words “if,” “when,” or “in response to determination” as used herein may be interpreted as “when…” or “when…” or “in response to determination.”

[0048] The terms “at least one,” “multiple,” “each,” “any,” etc., used in this invention, “at least one” includes one, two, or more than two; “multiple” includes two or more than two; “each” refers to each of the corresponding multiple; and “any” refers to any one of the multiple.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing embodiments of the invention only and is not intended to limit the invention.

[0050] Advances in geological teaching instruments within related technologies aim to combine physical models with digital technology to overcome existing limitations. Traditional geological models typically employ static structures, failing to provide demonstrations of dynamic geological processes. While some models integrate simple lighting indicators, they lack precise perception and automatic recognition of module placement. Although augmented reality technology has been introduced into the teaching field, it usually relies on manual selection or QR code recognition, failing to achieve automatic registration and real-time interaction with physical models. Furthermore, existing technologies often struggle to simultaneously achieve accurate spatial structure display and dynamic process visualization, leading to difficulties in student comprehension.

[0051] Inspired by these observations, this invention proposes a multimodal interactive demonstration method and system for teaching stratigraphic contact relationships. It aims to achieve automatic identification and multimodal demonstration of stratigraphic contact relationships by introducing pressure sensing networks, NFC / RFID automatic identification, and LED matrix visualization technology. The system can automatically detect module configurations and generate corresponding visual and augmented reality feedback. The key contributions of the proposed multimodal interactive demonstration system are as follows:

[0052] To achieve automatic identification of formation configuration, we propose an intelligent substrate that uses a pressure sensor grid and NFC / RFID reader to sense the placement, order, and identity information of the formation demonstration module in real time.

[0053] To visualize contact relationships, we introduced an LED light strip matrix that displays different colors, flashing modes, and halo effects according to the type of contact relationship, intuitively representing the contact boundary and the formation boundary.

[0054] To enhance the interactivity of teaching, we designed an AR scanning system that uses a camera recognition module to automatically trigger an overlay display of an animation of the stratigraphic evolution process.

[0055] refer to Figure 1 ,like Figure 1 The image shows a multimodal interactive demonstration method for teaching stratigraphic contact relationships provided by an embodiment of the present invention. The method includes the following steps:

[0056] S100, acquire placement data of the formation demonstration module and sensing data of the smart substrate; wherein, the smart substrate includes a pressure sensor grid, an NFC / RFID reader and an LED light strip matrix, the placement data includes module position data, module sequence data and module identity data, and the sensing data includes pressure distribution data and module identification data;

[0057] S200, the placement data and sensing data are input into the multimodal interactive demonstration system, and the stratigraphic contact relationship type is identified through the stratigraphic type identification module to generate the stratigraphic contact relationship identification result;

[0058] S300, through the visual demonstration module, generates LED control signals based on the recognition results, and controls the LED light strip matrix to display the contact boundary and the stratum boundary;

[0059] S400 generates AR display content based on the recognition results through the augmented reality module; and outputs the LED control signal and AR display content through the output module to realize multimodal demonstration of the stratigraphic contact relationship.

[0060] In the embodiments provided by this invention, a pressure sensor grid can accurately detect the placement position and pressure distribution of the formation demonstration module, an NFC / RFID reader can automatically identify the module's identity information, and an LED light strip matrix can visualize the contact boundary. This multimodal interactive demonstration system can automatically identify the module configuration and generate corresponding visual feedback and AR content, significantly improving the intuitiveness and interactivity of teaching, and avoiding the static limitations of traditional models and the non-repeatability of field practice.

[0061] In some embodiments, S100, acquiring the placement data of the formation demonstration module and the sensing data of the smart substrate includes:

[0062] S110 uses a pressure sensor grid to detect the placement and pressure distribution of the formation demonstration module and generates pressure sensing data.

[0063] S120 reads the identity information of the formation demonstration module through an NFC / RFID reader and generates module identification data;

[0064] S130, obtains the tilt angle data of the base plate through the tilt adjustment device;

[0065] S140, the pressure sensing data, module identification data and tilt angle data are integrated into the sensing data.

[0066] In this embodiment, through the fusion of multiple sensors including a pressure sensor grid, an NFC / RFID reader, and a tilt adjustment device, the system can comprehensively acquire the spatial state information of the formation demonstration module, providing an accurate data foundation for subsequent formation contact relationship identification.

[0067] In some embodiments, S200, identifying the type of stratigraphic contact relationship through the stratigraphic type identification module includes:

[0068] S210, determine the type attribute of the stratum demonstration module based on the module identity data;

[0069] S220, determine the spatial arrangement characteristics of the stratigraphic demonstration module based on the module location data and module sequence data;

[0070] S230, based on the type attributes and spatial arrangement characteristics, determine the type of stratigraphic contact relationship as conformable contact, parallel unconformity, angular unconformity, or intrusive contact, and generate the stratigraphic contact relationship identification result.

[0071] In this embodiment, through comprehensive analysis of module identity data, location data, and sequence data, the stratigraphic type identification module can accurately determine the type of stratigraphic contact relationship currently being demonstrated, providing a basis for generating targeted demonstration content.

[0072] In some embodiments, in S300, the step of generating an LED control signal by the visual demonstration module based on the recognition result includes:

[0073] When the identification result is integrated contact, a first LED control signal is generated to control the LED light strip matrix to display a continuous green light strip;

[0074] When the identification result is parallel non-integration, a second LED control signal is generated to control the LED light strip matrix to flash red light to the corresponding area of ​​the etched surface and then display a yellow light strip on the upper layer.

[0075] When the identification result is angular incoherence, a third LED control signal is generated to control the LED light strip matrix to display the angular difference between the lower inclined stratum and the upper horizontal stratum;

[0076] When the identification result is an intrusion contact, a fourth LED control signal is generated to control the LED light strip matrix to display an orange-red halo in the contact area between the intruder and the surrounding rock.

[0077] In this embodiment, the visual demonstration module generates differentiated LED control signals based on the type of formation contact relationship. It uses visual elements such as color, flashing, and halo to intuitively represent the characteristics of different contact relationships, such as the continuity of integrated contact, the discontinuity of unintegrated contact, and the thermal effect of intrusive contact, which significantly enhances the intuitiveness of the teaching demonstration.

[0078] In some embodiments, S400, the step of generating AR display content by the augmented reality module based on the recognition result includes:

[0079] S410 uses a camera to scan the geological demonstration module and acquire image data of the module;

[0080] S420, based on the module image data and recognition results, call the pre-stored stratigraphic evolution animation data;

[0081] S430, the stratigraphic evolution animation data is overlaid on the module image data to generate the AR display content.

[0082] In this embodiment, the augmented reality module compresses a geological evolution process spanning millions of years into an observable dynamic sequence through real-time scanning and animation overlay, enabling students to intuitively understand the formation timeline and dynamic evolution process of stratigraphic contact relationships.

[0083] In some embodiments, after outputting the LED control signal and AR display content through the output module in S400, the method further includes:

[0084] The audio output device plays the voice explanation data corresponding to the recognition result, and the voice explanation data includes stratigraphic age information and sedimentary environment information.

[0085] The display shows textual descriptions and animated demonstrations of the geological formation process of stratigraphic contact relationships.

[0086] In this embodiment, the system provides a learning experience that combines visual, auditory, and tactile senses through multimodal output of audio and text display, which conforms to cognitive laws and reinforces key teaching points.

[0087] refer to Figure 2 On the other hand, embodiments of the present invention provide a multimodal interactive demonstration system for teaching stratigraphic contact relationships, comprising:

[0088] The intelligent substrate includes a pressure sensor grid, an NFC / RFID reader, an LED light strip matrix, and a tilt adjustment device, used to detect the placement data of the formation demonstration module and generate sensor data. The formation demonstration module is obtained from the formation relationship demonstration module library.

[0089] The stratigraphic relationship demonstration module library includes a consolidation contact demonstration module, a parallel unconformity demonstration module, an angular unconformity demonstration module, and an intrusion contact demonstration module. Each module contains multiple layered cuboid modules and erosion surface modules, and the modules are connected by magnetic attraction.

[0090] A processing unit, wirelessly connected to the smart substrate, is used to execute the method described in any of the above-mentioned embodiments;

[0091] The display unit is used to display AR display content.

[0092] In the embodiments provided by the present invention, the multimodal interactive demonstration system achieves automatic module identification through multi-sensor fusion of an intelligent substrate, provides diverse teaching components through a stratigraphic relationship demonstration module library, realizes data processing and demonstration control through a processing unit, and presents augmented reality content through a display unit, thus forming a complete interactive teaching solution.

[0093] refer to Figure 3 In some embodiments, the stratigraphic demonstration module is obtained from a stratigraphic relationship demonstration module library, which includes a consolidation contact demonstration module, a parallel unconformity demonstration module, an angular unconformity demonstration module, and an intrusion contact demonstration module. Each module contains multiple layered cuboid modules and erosion surface modules, and the modules are connected by magnetic attraction.

[0094] In this embodiment, the modular design makes each demonstration module independent and expandable, which facilitates teaching combination and maintenance upgrades, and can cover a variety of typical geological scenarios.

[0095] In some embodiments, the integrated contact demonstration module includes multiple layered cuboid modules of different colors, a magnetic connection device is provided at the bottom of the module, the contact surface of the module is a flat and smooth surface, and an NFC / RFID tag is provided on the surface of the module.

[0096] In this embodiment, the integrated contact demonstration module ensures complete parallel fit through bottom magnetic connection. The flat and smooth contact surface represents continuous deposition, and different colors distinguish different strata, thus realizing the physical expression of integrated contact.

[0097] In some embodiments, the angle non-integration demonstration module includes a lower inclined stratum module, a middle erosion surface module, and an upper horizontal stratum module. The dip angle of the lower inclined stratum module is a preset fixed value, and the system is equipped with a transparent stratum angle measuring ruler.

[0098] In this embodiment, the angular non-conformity demonstration module visually demonstrates the spatial structure of angular non-conformity by comparing an inclined stratum module with a horizontal stratum module at a preset tilt angle. The accompanying angle measuring ruler supports students in conducting actual measurements, enhancing their practical skills.

[0099] On the other hand, embodiments of the present invention also provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the method described in any of the above-mentioned embodiments.

[0100] In this embodiment, a computer-readable storage medium stores a program that implements a multimodal interactive demonstration method, enabling the method to be executed on a general-purpose computing device, thereby improving the portability and application scope of the technology.

[0101] Those skilled in the art will understand that all or some of the steps and systems disclosed above can be implemented as software, firmware, hardware, or suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which may include computer storage media and communication media.

[0102] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network.

[0103] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0104] This invention also provides a computer program product, including a computer program or computer instructions, which are stored in a memory. A processor of a computer device reads the computer program or computer instructions from the memory and executes the computer program or computer instructions, causing the computer device to perform the above-described method.

[0105] It is understood that the content of the above method embodiments is applicable to the embodiments of this program product. The specific functions implemented by the embodiments of this program product are the same as those of the above method embodiments, and the beneficial effects achieved are also the same as those achieved by the above method embodiments.

[0106] Memory, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory may optionally include memory remotely located relative to the processor, and these remote memories can be connected to the processor via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0107] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

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

Claims

1. A multi-modal interactive demonstration method for teaching about stratigraphic contact relationships, the method comprising: The method comprises the following steps: S100, obtaining placement data of the stratum demonstration module and sensing data of the intelligent base plate; wherein the intelligent base plate comprises a pressure sensor grid, an NFC / RFID reader and an LED light strip matrix, the placement data comprises module position data, module sequence data and module identity data, and the sensing data comprises pressure distribution data and module identification data; S200, inputting the placement data and the sensing data into a multi-modal interactive demonstration system, identifying a stratum contact relationship type through a stratum type identification module, and generating a stratum contact relationship identification result; S300, generating an LED control signal according to the identification result through a visual demonstration module, and controlling the LED light strip matrix to display a contact boundary and a stratum boundary; S400, generating AR display content according to the identification result through an augmented reality module, and outputting the LED control signal and the AR display content through an output module to realize multi-modal demonstration of the stratum contact relationship.

2. The method of claim 1, wherein, In S100, the obtaining of the placement data of the stratum demonstration module and the sensing data of the intelligent base plate comprises: detecting the placement position and the pressure distribution of the stratum demonstration module through the pressure sensor grid to generate pressure sensing data; reading the identity information of the stratum demonstration module through the NFC / RFID reader to generate module identification data; obtaining base plate inclination angle data through an inclination adjustment device; integrating the pressure sensing data, the module identification data and the inclination angle data into the sensing data.

3. The method of claim 1, wherein, In S200, the identifying of the stratum contact relationship type through the stratum type identification module comprises: determining the type attribute of the stratum demonstration module according to the module identity data; determining the spatial arrangement feature of the stratum demonstration module according to the module position data and the module sequence data; judging the stratum contact relationship type to be integrated contact, parallel unconformity, angular unconformity or intrusive contact according to the type attribute and the spatial arrangement feature, and generating the stratum contact relationship identification result.

4. The method of claim 1, wherein, In S300, the generating of the LED control signal according to the identification result through the visual demonstration module comprises: when the identification result is integrated contact, generating a first LED control signal to control the LED light strip matrix to display a continuous green light strip; when the identification result is parallel unconformity, generating a second LED control signal to control the LED light strip matrix to flash red light on the corresponding area of the denudation surface and then display a yellow light strip on the upper layer; when the identification result is angular unconformity, generating a third LED control signal to control the LED light strip matrix to display the angle difference between the inclined stratum of the lower layer and the horizontal stratum of the upper layer; when the identification result is intrusive contact, generating a fourth LED control signal to control the LED light strip matrix to display an orange-red light halo in the contact area between the intrusive body and the surrounding rock.

5. The method of claim 1, wherein, In S400, the generating of the AR display content according to the identification result through the augmented reality module comprises: scanning the stratum demonstration module through a camera to obtain module image data; calling pre-stored stratum evolution animation data according to the module image data and the identification result; Superimpose the stratum evolution animation data on the module image data to generate AR display content.

6. The method of claim 1, wherein, In S400, after the LED control signal and the AR display content are output by the output module, the method further includes: Playing voice explanation data corresponding to the recognition result through an audio output device, the voice explanation data including stratum age information and sedimentary environment information; Displaying a text description and an animation demonstration of a geological formation process of stratum contact relations through a display.

7. A multi-modal interactive demonstration system for teaching about stratigraphic contact relationships, comprising: The method includes: An intelligent base plate including a pressure sensor grid, an NFC / RFID reader, an LED light strip matrix, and a tilt adjustment device, for detecting placement data of a stratum demonstration module and generating sensor data, the stratum demonstration module being obtained from a stratum relation demonstration module library; A stratum relation demonstration module library including a conformable contact demonstration module, a parallel unconformity demonstration module, an angular unconformity demonstration module, and an intrusive contact demonstration module, each module including a plurality of layered cuboid modules and denudation surface modules, the modules being connected through magnetic attraction; A processing unit wirelessly connected to the intelligent base plate, for executing the method of any one of claims 1 to 6; A display unit for displaying AR display content.

8. The system of claim 7, wherein, The conformable contact demonstration module includes a plurality of layered cuboid modules of different colors, the bottom of each module being provided with a magnetic connection device, the contact surface of each module being a flat and smooth surface, and each module being provided with an NFC / RFID tag on the surface.

9. The system of claim 7, wherein, The angular unconformity demonstration module includes a lower inclined stratum module, a middle denudation surface module, and an upper horizontal stratum module, the inclination angle of the lower inclined stratum module being a preset fixed value, and the system being provided with a transparent stratum angle measuring scale.

10. A computer-readable storage medium storing a computer program, the computer program comprising instructions that, when executed by a computer, cause the computer to perform the method of any one of claims 1 to 9. The computer program, when executed by a processor, implements the method of any one of claims 1 to 6. The computer program, when executed by a processor, implements the method of any one of claims 1 to 6.

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