Magnetic-sensitive microspur identification and positioning system and method thereof

Abstract

The invention relates to the technical field of building scene models, in particular to a magneto-sensitive microspur recognition and positioning system and method, and the system comprises a plurality of building model modules, each building model module is provided with a magnetic identification member, and the magnetic fields generated by the magnetic identification members are different; the magnetic induction surface layer is used for supporting the building model module; the magnetic sensitive sensing assembly is arranged on the magnetism guiding surface layer and is used for receiving and identifying magnetic field information of each magnetic identification piece; and the encoding module is used for analyzing the position information of each building model module according to the magnetic field information provided by the magnetic sensing assembly, and sending the position information to a real-time rendering and output module in a computer system after superposing a timestamp and user information for comprehensive encoding. The method has the advantages that the ID and the position of the building model module can be recognized in real time, and the consistency of the sand table model and the virtual model is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of building scene models, and in particular to a magnetic - sensitive micro - recognition positioning system and method thereof. Background Art

[0002] A building sand table model is a physical model that displays building plans in three - dimensional form. It is usually used to show the appearance, layout, and surrounding environment of buildings, and can help designers, developers, customers, and decision - makers understand the project more intuitively.

[0003] In the prior art, building sand table models or building models simulated by computer software are usually used to display building design schemes. In actual construction projects, it is often necessary to produce building sand table models and computer - simulated building models synchronously. Building sand table models are usually used for marketing in real - estate sales offices or for exhibition hall explanations to face customers, while computer - simulated building models are produced and displayed on engineering computers to face engineering personnel or customers. In the same project, the two complement each other and make the building project planning more intuitive. However, due to the difficulty in accurately identifying the ID of the module and accurately positioning the precise coordinates of the module within the sand table range at present, when the layout of the building model needs to be changed, the two can only be changed separately, and it is difficult to achieve real - time intercommunication with the virtual scene simulated by the computer system. Therefore, designing a magnetic - sensitive micro - recognition positioning system that can identify the ID of the model module and the sand table coordinates in real - time, accurately, and at low cost is a technical problem that enterprise technicians urgently need to solve. Summary of the Invention

[0004] In view of the above - mentioned deficiencies in the prior art, the present application provides a magnetic - sensitive micro - recognition positioning system and method thereof.

[0005] The above - mentioned invention object of the present application is achieved through the following technical solutions: In a first aspect, the present application provides a magnetic - sensitive micro - recognition positioning system, including: A number of building model modules, each of which is installed with a magnetic identification component, and the magnetic field generated by each magnetic identification component is different; A magnetic - attracting surface layer for supporting the building model modules; A magnetic - sensitive sensing component disposed on the magnetic - attracting surface layer and used for receiving and identifying the magnetic field information of each magnetic identification component; An encoding module that analyzes the position information of each building model module according to the magnetic field information provided by the magnetic - sensitive sensing component, and after comprehensively encoding by superimposing a time stamp and user information, sends it to the real - time rendering and output module in the computer system.

[0006] By adopting the above technical solution, several building model modules are placed on the magnetic induction surface layer according to the building layout to form a building sand table model. The magnetic identification components on each building model module generate different magnetic fields, so that the magnetic fields generated by each identification component are unique to distinguish different building model modules. A magnetic sensor component is arranged on the magnetic induction surface layer to monitor the magnetic field information of each magnetic identification component in real time and determine the specific position of the building model module in the sand table. The coding module receives the magnetic field information provided by the magnetic sensor component, analyzes the unique ID and coordinate position of each building model module, and comprehensively codes the position information with the time stamp, user information, etc. to ensure the integrity and traceability of the data. The computer system receives the data sent by the coding module, updates the building model layout in the virtual scene in real time, and displays the updated building model through the real-time rendering and output module. Among them, through the cooperation of the magnetic identification component and the magnetic sensor component, the ID and position of the building model module can be identified in real time, ensuring the consistency between the sand table model and the virtual model, solving the problem of separation between the two in the traditional technology. Compared with other high-precision positioning technologies, the cost is lower and it is easier to implement. When the building model module moves or is adjusted on the sand table, the system can capture the changes in real time and update the virtual scene, avoiding the cumbersome and errors of manual modification, reducing manual intervention, improving work efficiency, and enabling customers or decision-makers to more intuitively understand the building design plan through the synchronous display of the sand table model and the virtual model, enhancing the communication effect.

[0007] In a preferred example of the present application, it can be further configured that: the magnetic sensor component includes several magnetic sensors and a data acquisition module. The several magnetic sensors are arranged in a grid pattern at the bottom of the magnetic induction surface layer to form a magnetic coordinate network. Each magnetic sensor is used to identify the magnetic field information of the magnetic identification component. The data acquisition module is controllably connected to the magnetic sensors and is used to integrate the data sent by the magnetic sensors and send the acquired data to the coding module.

[0008] By adopting the above technical solution, the grid layout of the magnetic sensors forms a magnetic coordinate network. Each magnetic sensor corresponds to a coordinate point in the network. When the building model module is placed on the magnetic induction surface layer, the magnetic identification component at its bottom can activate the nearby magnetic sensors, thereby determining the position of the module. Then, the magnetic field information sent by each magnetic sensor is received and integrated through the data transmission module and sent to the coding module.

[0009] In a preferred example, the present application can be further configured as follows: the magnetic sensor assembly further includes a plurality of magnetic rods, and a part of the magnetic sensors are magnetically connected to and correspond to the plurality of magnetic rods one by one, and another part of the magnetic sensors are arranged staggeredly with the plurality of magnetic rods. The magnetic rods are arranged at the bottom of the magnetic induction layer and are used to transmit the magnetic field emitted by the magnetic identification member to the corresponding magnetic sensors.

[0010] By adopting the above technical solution, by arranging the magnetic rods, the magnetic field emitted by the magnetic identification member can be efficiently transmitted. Connecting some magnetic sensors for use and arranging them staggeredly with other magnetic sensors can reduce the contact distance between adjacent magnetic sensors, so as to improve the accuracy of the magnetic coordinate network, thereby further improving the positioning accuracy.

[0011] In a preferred example, the present application can be further configured as follows: the center distance between adjacent magnetic sensors is less than or equal to 3.5 mm.

[0012] By adopting the above technical solution, the layout of the magnetic sensors with this distance setting can ensure that the accuracy of the formed magnetic coordinate network is sufficient to improve the positioning accuracy of the building model module.

[0013] In a preferred example, the present application can be further configured as follows: the magnetic identification member includes an induction magnet for emitting a magnetic field, and a plurality of identification bins are opened at the bottom of the building model module, and the identification bins are used to fix the induction magnet.

[0014] By adopting the above technical solution, different induction magnets with different magnetic field intensities and directions can be installed at the bottom of each building model module through different identification bins, so as to use the above variables for different permutations and combinations to form a unique identifier for each building model module for distinction.

[0015] In a second aspect, the present application provides a magnetic sensor micro-distance identification and positioning method, including the following steps: S1. Set a magnetic sensor assembly at the bottom of the magnetic induction layer, and install a magnetic identification member at the bottom of each building model module placed on the magnetic induction layer; S2. According to the different magnetic fields emitted by each magnetic identification member, encode and distinguish each magnetic identification member to identify each building model module; S3. Set a model identification database in the computer system, input the identification code of each magnetic identification member into the model identification database, and associate the model identification database with the magnetic sensor assembly and the coding module; S4. The magnetic sensor component receives and identifies the magnetic field information of each magnetic identification component, converts it into coordinate data according to the position of each building model module on the magnetic attracting surface layer, and sends it to the encoding module. The encoding module analyzes the position information of each building model module according to the coordinate data of each magnetic identification component and associates it with the identification code of the corresponding magnetic identification component, and after comprehensively encoding by superimposing the time stamp and user information, it is sent to the real-time rendering and output module in the computer system through the data real-time sending interface.

[0016] By adopting the above technical solution, a magnetic sensor component is installed at the bottom of the magnetic attracting surface layer, and a magnetic identification component is installed at the bottom of each building model module to complete the hardware deployment of the system, ensure the normal operation of the magnetic sensor component and the magnetic identification component, provide basic support for subsequent magnetic field detection and positioning, and each magnetic identification component corresponds to a unique identification code, ensuring that the system can accurately identify each building model module. Then, by setting up a model identification database, it can provide data storage and management functions, facilitate the system to quickly query and match the information of the magnetic identification component, realize data intercommunication between the magnetic sensor component, the encoding module and the computer system, so as to realize the real-time identification and positioning of the building model module. Through the comprehensive encoding of the encoding module, the integrity and traceability of the data are ensured. Finally, through the data real-time sending interface, it is sent to the real-time rendering and output module in the computer system to update the building model layout in the virtual scene.

[0017] In summary, the present application includes at least one of the following beneficial technical effects: 1. By the cooperation of the magnetic identification component and the magnetic sensor component, it is possible to realize the real-time identification of the ID and position of the building model module, ensure the consistency between the sand table model and the virtual model, solve the problem of separation between the two in the traditional technology, and is lower in cost and easier to implement compared with other high-precision positioning technologies. When the building model module moves or is adjusted on the sand table, the system can capture the changes in real time and update the virtual scene, avoiding the cumbersome and error of manual modification, reducing manual intervention, improving work efficiency, and enabling customers or decision-makers to more intuitively understand the building design scheme through the synchronous display of the sand table model and the virtual model, enhancing the communication effect.

[0018] 2. The grid layout of the magnetic sensors forms a magnetic coordinate network, and each magnetic sensor corresponds to a coordinate point in the network. When the building model module is placed on the magnetic attracting surface layer, the magnetic identification component at its bottom can activate the nearby magnetic sensors, thereby determining the position of the module. Then, the magnetic field information sent by each magnetic sensor is received and integrated through the data transmission module and sent to the encoding module.

[0019] 3. By setting up a magnetic attracting rod, the magnetic field emitted by the magnetic identification component can be efficiently transmitted, which is used in connection with some magnetic sensors. When placed alternately with other magnetic sensors, the contact distance between adjacent magnetic sensors can be reduced, so as to improve the accuracy of the magnetic coordinate network, and further improve the positioning accuracy.

[0020] 4. Install a magnetic sensor component at the bottom of the magnetic attracting surface layer, and install a magnetic identification component at the bottom of each building model module to complete the hardware deployment of the system, ensure the normal operation of the magnetic sensor component and the magnetic identification component, provide basic support for subsequent magnetic field detection and positioning, and each magnetic identification component corresponds to a unique identification code, ensuring that the system can accurately identify each building model module. Then, by setting up a model identification database, data storage and management functions can be provided, which is convenient for the system to quickly query and match magnetic identification component information, realize data intercommunication between the magnetic sensor component, the coding module and the computer system, so as to realize the real-time identification and positioning of the building model module. Through the comprehensive coding of the coding module, the integrity and traceability of the data are ensured. Finally, through the data real-time sending interface, it is sent to the real-time rendering and output module in the computer system to update the building model layout in the virtual scene. Description of the Drawings

[0021] Figure 1 is the overall structural schematic diagram of the magnetic sensor micro-distance identification and positioning system in an embodiment of the present application; Figure 2 is the structural schematic diagram of the building model module in an embodiment of the present application; Figure 3 is the process schematic diagram of the magnetic sensor micro-distance identification and positioning method in an embodiment of the present application.

[0022] Reference numerals: 1. Building model module; 2. Magnetic attracting surface layer; 3. Magnetic sensor component; 31. Magnetic sensor; 32. Data acquisition board; 33. Connection lead; 34. Magnetic attracting rod; 4. Magnetic identification component; 5. Identification bin. Detailed Embodiments

[0023] The following makes an explanation of the exemplary embodiments of the present application with reference to the drawings. Various details of the embodiments of the present application are included to facilitate understanding, and they should be considered merely exemplary. Therefore, those of ordinary skill in the art should recognize that various changes and modifications can be made to the embodiments described here without departing from the scope and spirit of the present application. Similarly, for clarity and conciseness, the description of well-known functions and structures is omitted below.

[0024] It should be noted that the terms "first", "second", etc. in the present invention are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure.

[0025] In addition, the term "and / or" herein is merely a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " herein, unless otherwise specified, generally represents an "or" relationship between the associated objects before and after.

[0026] A magnetic-sensitive micro-distance identification and positioning system of the present application will be described below with reference to the accompanying drawings.

[0027] As Figure 1 and Figure 2As shown in the figure, the magnetic-sensitive micro recognition and positioning system includes several building model modules 1, a magnetic induction layer 2, a magnetic-sensitive sensing component 3, and a coding module. Each building model module 1 is installed with a magnetic identification component 4, and the magnetic field generated by each magnetic identification component 4 is different. The magnetic induction layer 2 is used to support the building model modules 1. The magnetic-sensitive sensing component 3 is arranged on the magnetic induction layer 2 and is used to receive and identify the magnetic field information of each magnetic identification component 4. The coding module analyzes the position information of each building model module 1 according to the magnetic field information provided by the magnetic-sensitive sensing component 3, and after comprehensively coding by superimposing the time stamp and user information, it is sent to the real-time rendering and output module in the computer system. Among them, several building model modules 1 are placed on the magnetic induction layer 2 according to the building layout to form a building sand table model. The magnetic identification components 4 on each building model module 1 generate different magnetic fields, so that the magnetic field generated by each identification component is unique to distinguish different building model modules 1. And a magnetic-sensitive sensing component 3 is arranged on the magnetic induction layer 2 to monitor the magnetic field information of each magnetic identification component 4 in real time to determine the specific position of the building model module 1 in the sand table. The coding module receives the magnetic field information provided by the magnetic-sensitive sensing component 3, analyzes the unique ID and coordinate position of each building model module 1, and comprehensively codes the position information with the time stamp, user information, etc. to ensure the integrity and traceability of the data. The computer system receives the data sent by the coding module, updates the building model layout in the virtual scene in real time, and displays the updated building model through the real-time rendering and output module. Among them, through the cooperation of the magnetic identification component 4 and the magnetic-sensitive sensing component 3, the ID and position of the building model module 1 can be recognized in real time, ensuring the consistency between the sand table model and the virtual model, solving the problem of their separation in the traditional technology. Compared with other high-precision positioning technologies, the cost is lower and it is easier to implement. When the building model module 1 moves or is adjusted on the sand table, the system can capture the changes in real time and update the virtual scene, avoiding the cumbersome and error of manual modification, reducing manual intervention, improving work efficiency, and enabling customers or decision-makers to more intuitively understand the building design plan through the synchronous display of the sand table model and the virtual model, enhancing the communication effect.

[0028] It should be noted that the function of the coding module can be realized by existing conventional software efficient algorithms and hardware, which is common knowledge for those skilled in the art and will not be elaborated here.

[0029] Specifically, the magnetic sensing component 3 includes a plurality of magnetic sensors 31 and a data acquisition module. The plurality of magnetic sensors 31 are arranged in a grid shape at the bottom of the magnetic surface layer 2 to form a magnetic coordinate network. Each magnetic sensor 31 is used to identify the magnetic field information of the magnetic identification piece 4. The data acquisition module is controlled to be connected to the magnetic sensor 31 and is used to integrate the data sent by the magnetic sensor 31, and send the collected data to the encoding module. The magnetic sensor 31 can detect the magnetic field brought by the magnet at the bottom of the model module, identify its magnetic field strength, the properties of the magnetic pole, and the grid layout of the magnetic sensor 31 to form a magnetic coordinate network. Each magnetic sensor 31 corresponds to a coordinate point in the network. When the building model module 1 is placed on the magnetic surface layer 2, the magnetic identification piece 4 at its bottom can activate the nearby magnetic sensor 31, thereby determining the position of the module. Then, the magnetic field information sent by each magnetic sensor 31 is received and integrated through the data transmission module, and sent to the encoding module to complete the real-time identification and positioning of the building model module 1.

[0030] It should be noted that the magnetic sensor 31 can adopt conventional models on the market according to the required accuracy and the size of the magnetic surface layer 2, so that the building model module 1 on the magnetic surface layer 2 can adapt to the coordinate grid formed by the layout of several magnetic sensors 31. The data acquisition module can be implemented in a wired (such as I2C, SPI bus) or wireless (such as Wi-Fi, Bluetooth) manner. When using wired working conditions, the data acquisition module may include a data acquisition board 32 and a connecting lead 33. The magnetic sensor 31 is connected to the data acquisition board 32 through the connecting lead 33 to complete the data transmission between the magnetic sensor 31 and the data acquisition board 32. The data acquisition board 32 can select an electronic device for data acquisition such as a PCB board.

[0031] Furthermore, the magnetic sensing assembly 3 also includes a plurality of magnetic rods 34, wherein a portion of the magnetic sensors 31 are magnetically connected to the plurality of magnetic rods 34 and correspond one to one, and another portion of the magnetic sensors 31 are alternately placed with the plurality of magnetic rods 34, and the magnetic rods 34 are arranged at the bottom of the magnetic surface layer 2 and are used to transmit the magnetic field emitted by the magnetic identification member 4 to the corresponding magnetic sensors 31. By setting the magnetic rods 34, the magnetic field emitted by the magnetic identification member 4 can be efficiently transmitted, and by connecting a portion of the magnetic sensors 31 for use, and by alternately placing them with other magnetic sensors 31, the contact spacing between adjacent magnetic sensors 31 can be reduced, so as to improve the accuracy of the magnetic coordinate network, thereby further improving the positioning accuracy.

[0032] Furthermore, the center spacing between adjacent magnetic sensors 31 is less than or equal to 3.5 mm. By adopting the layout of the magnetic sensors 31 with this spacing setting, it can be ensured that the accuracy of the formed magnetic coordinate network is sufficient to improve the positioning accuracy of the building model module 1.

[0033] In addition, the magnetic identification component 4 includes an induction magnet for emitting a magnetic field. A plurality of identification bins 5 are provided at the bottom of the building model module 1, and the identification bins 5 are used to fix the induction magnets. Among them, different induction magnets with different magnetic field intensities and directions can be installed at the bottom of each building model module 1 through different identification bins 5, so as to use the above variables for different permutations and combinations to form a unique identifier for each building model module 1 for distinction. In addition, no induction magnet may be placed in the identification bin 5, so that the magnetic field intensity in the identification bin 5 is identified as zero and participates in the permutation and combination of the above variables.

[0034] Referring Figures 1 to 3 , the present invention provides a magnetic-sensitive micro-distance identification and positioning method, including the following steps: S1. A magnetic-sensitive sensing component 3 is provided at the bottom of the magnetic induction surface layer 2, and a magnetic identification component 4 is installed at the bottom of each building model module 1 placed on the magnetic induction surface layer 2; S2. According to the different magnetic fields emitted by each magnetic identification component 4, each magnetic identification component 4 is encoded and distinguished to identify each building model module 1; S3. A model identification database is set up in the computer system, the identification codes of each magnetic identification component 4 are entered into the model identification database, and the model identification database is associated with the magnetic-sensitive sensing component 3 and the coding module; S4. The magnetic-sensitive sensing component 3 receives and identifies the magnetic field information of each magnetic identification component 4, converts it into coordinate data according to the position of each building model module 1 on the magnetic induction surface layer 2, and sends it to the coding module. The coding module associates the coordinate data of each magnetic identification component 4 with the identification code of the corresponding magnetic identification component 4, analyzes the position information of each building model module 1, and after comprehensively encoding by superimposing the time stamp and user information, it is sent to the real-time rendering and output module in the computer system through the data real-time sending interface.

[0035] Among them, the magnetic-sensitive sensing component 3 is installed at the bottom of the magnetic induction surface layer 2, and the magnetic identification component 4 is installed at the bottom of each building model module 1 to complete the hardware deployment of the system, ensure the normal operation of the magnetic-sensitive sensing component 3 and the magnetic identification component 4, provide basic support for subsequent magnetic field detection and positioning, and each magnetic identification component 4 corresponds to a unique identification code, ensuring that the system can accurately identify each building model module 1. Then, by setting up the model identification database, data storage and management functions can be provided, facilitating the system to quickly query and match the information of the magnetic identification component 4, realizing data intercommunication between the magnetic-sensitive sensing component 3, the coding module and the computer system, thereby realizing the real-time identification and positioning of the building model module 1. Through the comprehensive coding of the coding module, the integrity and traceability of the data are ensured. Finally, through the data real-time sending interface, it is sent to the real-time rendering and output module in the computer system to update the building model layout in the virtual scene.

[0036] It should be noted that the real-time rendering and output module is the core component in the computer system responsible for processing, rendering, and displaying virtual scenes. It receives data from the encoding module (including the position information, identification code, timestamp, user information, etc. of the building model module 1), and updates the virtual scene in real time. Finally, it outputs to the user through a display device. For example, it can be common engines such as Unity and Unreal Engine. In this embodiment, using Unreal Engine is more suitable for building working conditions. The real-time data sending interface can adopt methods such as Wi-Fi, Bluetooth, or wired connection, and send the data to the real-time rendering and output module in real time for real-time synchronization in the virtual space to achieve the digital twin of the building decoration sand table. That is, when the user moves the model module in the sand table, the corresponding 3D module in the virtual space also moves synchronously.

[0037] In addition, it should also be noted that when the user moves the module in the sand table multiple times and wants to go back to the position before the movement, that is, to withdraw this movement, this is difficult to achieve in a physical sand table. After the system of the present invention is installed, since each model state data carries a timestamp and user information, it is possible to go back to the user model state at the previous time point in the virtual space, having the function of tracing the user's actions.

[0038] The above specific implementation manners do not constitute a limitation to the protection scope of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of this application shall be included within the protection scope of this application.

Claims

1. A magnetic sensitive macro distance identification and positioning system, characterized in that: include: A plurality of building model modules (1), each of the building model modules (1) being equipped with a magnetic identification piece (4), and each of the magnetic identification pieces (4) generating a different magnetic field; A magnetic surface layer (2) for supporting the building model module (1); A magnetically sensitive sensor component (3), which is arranged on the magnetic attracting surface layer (2) and is used to receive and identify the magnetic field information of each magnetic identification element (4); The encoding module analyzes the position information of each building model module (1) according to the magnetic field information provided by the magnetic sensitive sensor component (3), and after superimposing the timestamp and user information for comprehensive encoding, sends it to the real-time rendering and output module in the computer system.

2. A magnetic sensitive macro distance identification and positioning system as claimed in claim 1, characterized in that: The magnetic sensing assembly (3) comprises a plurality of magnetic sensors (31) and a data acquisition module. The plurality of magnetic sensors (31) are arranged in a grid shape at the bottom of the magnetic attraction surface layer (2) to form a magnetic coordinate network. Each of the magnetic sensors (31) is used to identify the magnetic field information of the magnetic identification element (4). The data acquisition module is connected to the magnetic sensor (31) and is used to integrate the data sent by the magnetic sensor (31), and send the collected data to the encoding module.

3. A magnetic sensitive macro distance identification and positioning system as claimed in claim 2, characterized in that: The magnetic sensing assembly (3) further comprises a plurality of magnetic attraction rods (34), wherein a portion of the magnetic sensors (31) are magnetically connected to the plurality of magnetic attraction rods (34) and correspond one to one, and another portion of the magnetic sensors (31) are alternately arranged with the plurality of magnetic attraction rods (34), and the magnetic attraction rods (34) are arranged at the bottom of the magnetic attraction surface layer (2) and are used to transmit the magnetic field emitted by the magnetic identification element (4) to the corresponding magnetic sensors (31).

4. A magnetic sensitive macro distance identification and positioning system as claimed in claim 1, characterized in that: The center distance between adjacent magnetic sensors (31) is less than or equal to 3.5 mm.

5. A magnetic sensitive macro distance identification and positioning system as claimed in claim 1, characterized in that: The magnetic identification element (4) comprises an induction magnet, which is used to emit a magnetic field. A plurality of identification positions (5) are provided at the bottom of the building model module (1), and the identification positions (5) are used to fix the induction magnet.

6. A magnetic sensitive macro distance identification and positioning method, implemented based on the magnetic sensitive macro distance identification and positioning system according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1, a magnetic sensitive sensor assembly (3) is arranged at the bottom of the magnetic attracting surface layer (2), and a magnetic identification piece (4) is installed at the bottom of each building model module (1) placed on the magnetic attracting surface layer (2); S2, encoding and distinguishing each magnetic identification element (4) according to the difference in magnetic field emitted by each magnetic identification element (4), so as to identify each building model module (1); S3, setting up a model identification database in the computer system, entering the identification code of each magnetic identification element (4) into the model identification database, and associating the model identification database with the magnetic sensitive sensor component (3) and the encoding module; S4, the magnetic sensitive sensor component (3) receives and identifies the magnetic field information of each magnetic identification element (4), and converts it into coordinate data according to the position of each building model module (1) on the magnetic surface layer (2), and sends it to the encoding module. The encoding module analyzes the position information of each building model module (1) according to the coordinate data of each magnetic identification element (4) and associates it with the identification code of the corresponding magnetic identification element (4), and after superimposing the timestamp and user information for comprehensive encoding, sends it to the real-time rendering and output module in the computer system through the real-time data transmission interface.

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