Interactive teaching system for civil air defense engineering based on dynamic visualization and multi-modal control method

Abstract

The application discloses a kind of interactive teaching system and multi-modal control method of civil air defense engineering based on dynamic visualization, it is related to civil air defense engineering teaching and intelligent control field.System is based on the equal proportion civil air defense shelter unit physical model, fusion BIM visualization technology and PLC control logic, through big screen visual interface realizes "physical + digital" synchronous interaction.Core technical scheme includes: constructing "hardware control + software visualization" double closed loop system, realizes the one-key switching and dynamic demonstration of three ventilation modes such as clean, filter poison, isolation;Through 3D printing copy precision parts, restore civil air defense engineering protection, anti-chemical, air intake and exhaust and other core function structures.The application can intuitively display civil air defense engineering working principle and equipment linkage logic, provide interactive, operable physical demonstration platform for civil air defense teaching training, improve teaching efficiency and operation cognition.

Description

Technical Field

[0001] This invention belongs to the technical field of teaching equipment for civil defense engineering, and in particular relates to a teaching model system for civil defense engineering that integrates dynamic demonstration, real-time interaction and functional simulation, and is suitable for scenarios such as popular science education and professional training. Background Technology

[0002] Current teaching methods for civil defense engineering rely heavily on explanations of drawings, static model displays, or purely theoretical instruction, which has the following shortcomings: Insufficient intuitiveness: It is difficult to clearly present the internal layout of the project, the linkage between equipment, and the protection principles; Lack of interactivity: Learners are unable to participate in equipment operation or function demonstrations, and do not have a deep understanding of the operation process and maintenance points; Systemic weaknesses: It is unable to dynamically demonstrate complex processes such as ventilation mode switching and peacetime / wartime function switching, resulting in poor teaching continuity.

[0003] Therefore, there is an urgent need for an integrated teaching model that can achieve intuitive cognition, dynamic demonstration, and interactive practice, in order to overcome the limitations of existing teaching methods. Summary of the Invention

[0004] Technical problems to be solved This invention aims to provide a teaching model and interactive demonstration system for civil defense engineering, achieving the following objectives: It intuitively demonstrates the floor plan, functional zoning, and equipment composition of civil defense projects; dynamically simulates core functions such as ventilation mode switching, overpressure exhaust, and personnel evacuation; supports manual and remote interactive operation to enhance the practicality of teaching; and combines digital technology (BIM model) with physical demonstrations to enhance the systematic nature of teaching.

[0005] Technical solution The technical solution of this invention includes model structure design, functional implementation modules, and core control technology, as detailed below: The model's structural design is based on personnel shelter engineering, including personnel shelter units. The layout meets the following requirements: complete elements, covering functional components such as protection, chemical protection, air intake and exhaust systems, decontamination facilities, ventilation control, and entrance / exit call systems; clear zoning, clearly dividing clean areas from contaminated areas, entrances from the main body, and equipment areas from personnel shelter areas; and detailed reproduction, including key structures such as air intake shafts, dust filter chambers, filter absorber chambers, anti-toxic passages, and sealed passages, which are made using proportional replication (material processing or 3D printing) technology.

[0006] Core functional modules Equipment control module: Fans, airtight valves, and airtight doors support electric control (remote touchscreen) and manual operation (handwheel, knob), with operation feel and precision close to actual engineering; Ventilation conversion module: The control box enables one-button switching between three modes: "clean (green light), filtration (yellow light), and isolation (red light)," simultaneously triggering corresponding lights and prompts; Airflow visualization module: Food-grade glycerin is atomized to produce blue (clean) and red (contaminated) smoke, combined with transparent acrylic ducts and LED flowing light effects to intuitively display the airflow path; Overpressure exhaust module: Blue smoke simulates an overpressure exhaust path (clean area → airtight valve → exhaust valve → outdoors), equipped with a digital pressure gauge for real-time monitoring and support for overpressure value adjustment; Evacuation demonstration module: In-ground LED arrow lights, automatic opening and closing of airtight doors, and audible and visual alarms (evacuation command broadcast) simulate emergency evacuation scenarios.

[0007] Digital and interactive technologies The system builds BIM models that support loading on web pages and mobile devices, allowing users to view project details via touch or keyboard and mouse. It integrates PLC control technology to enable equipment linkage and function simulation. The system employs a full-process dynamic demonstration and voice narration, covering processes such as project construction, ventilation conversion, and peacetime-wartime conversion (switching between blast-resistant partition walls and retaining walls).

[0008] Beneficial effects Enhanced intuitiveness: By visualizing flue gas, transparent ducts, and dynamic lighting, abstract protection principles are transformed into a perceptible dynamic process; Enhanced interactivity: Supports both manual and remote operation, enabling learners to shift from "passive observation" to "active hands-on practice," deepening their understanding of operational procedures; Strengthened systematic approach: Combining BIM models with physical demonstrations, it covers the entire teaching process from layout awareness to equipment maintenance; Wide applicability: It can be used for general public science education, training of participants, and other scenarios, balancing professionalism and accessibility.

[0009] Figure descriptions: Figure 1: System structure diagram; Figure 2: Control system block diagram; Figure 3: Ventilation mode switching flowchart; Figure 4: Trial production physical picture.

Claims

1. An interactive teaching system for civil defense engineering based on dynamic visualization, characterized in that, include: The model structure is based on civil defense engineering, replicating functional components such as protection, chemical protection, and ventilation systems, and dividing the area into functional zones such as clean zone and contaminated zone, and entrance and main body. The core functional modules include an equipment control module, a ventilation conversion module, an airflow visualization module, an overpressure exhaust module, and an evacuation demonstration module, which are used to realize equipment operation simulation, ventilation mode conversion, airflow path display, overpressure exhaust simulation, and evacuation scenario demonstration. The control module integrates a PLC controller to receive manual or remote control commands and drive the core functional modules to perform corresponding operations. The digital interaction module, including the BIM model, supports loading and operation on terminal devices, and is used to display engineering details and synchronize the status of the physical model. A multimodal control method for civil defense engineering based on dynamic visualization, characterized by the following steps: Initialize the teaching system, load the BIM model of the civil defense project, and start the core functional modules of the physical model; Receive control commands, including manual operation commands or remote control commands; According to the control command, the drive equipment control module, ventilation conversion module, airflow visualization module, overpressure exhaust module or evacuation demonstration module execute the corresponding functions, wherein: the ventilation conversion module switches between cleaning, filtration and isolation modes and triggers lights and prompts; the airflow visualization module displays the airflow path through colored smoke and LED flowing lights. Synchronously update the BIM model to ensure that the digital model and the physical model are in the same state.

2. The system according to claim 1, characterized in that, The model structure is replicated using proportional technology, with key structures manufactured through 3D printing, and includes details such as air intake shafts, dust filter chambers, and filter absorber chambers. The system according to claim 1, characterized in that, The ventilation conversion module supports one-click switching between three modes: "cleaning (green light), filtration (yellow light), and isolation (red light)," and simultaneously triggers the corresponding lights and prompts. The system according to claim 1, characterized in that, The airflow visualization module uses food-grade glycerin to atomize blue and red smoke, and combines transparent acrylic ducts with LED flowing light effects to display the airflow path. The method according to claim 2, characterized in that, The remote control commands are sent via a touchscreen terminal, and the response delay is less than 0.5 seconds within 10 meters.

Images