4.1. Working Positive Pressure Oxygen Respirator: Respirator structure, principles, oxygen supply system, respiratory circulation system, shell accessories; Respirator wearing, pre-operation inspection

4.2. Personal Protective Equipment: Backup oxygen respirator (regulations, replacement in disaster areas, inspection and maintenance), oxygen replenisher (structure, purpose, usage method), self-rescuer (structure, wearing method, purpose), automatic resuscitator (structure, three major functions, usage method, resuscitator preparation), ordinary protective clothing (wearing method, regulatory requirements)

4.3. Detection Instrument Equipment: Oxygen respirator calibrator, optical gas detector calibrator, gas chromatograph, optical gas detector, multi-gas detector, portable gas detector, multi-parameter gas detector, hygrometer

4.4. Fire Rescue Equipment: High-expansion foam generator, medium-expansion foam generator, inert gas generator, inert foam generator

4.5. Flood Rescue Equipment: Submersible pump, drainage pipeline, waterproof and thermal protective clothing

4.6. Roof Collapse Rescue Equipment: Support equipment, breaking and dismantling equipment

4.7. Information and Communication Rescue Equipment: Disaster area telephone, sound-powered telephone, wireless telephone

4.8. Other Rescue Equipment: Oxygen filling pump, CPR training manikin (underground on-site safety check, human isolation protection, injury assessment, technical treatment, casualty transport, first aid, bandaging, moving)

System Functions:

1. User login permission authentication;

2. The system is divided into training mode and assessment mode. In assessment mode, the system can submit user assessment results to the backend management system;

3. Supports user interaction with virtual equipment in the virtual environment via VR controllers;

4. Supports user navigation in the system through controller operation;

Technical Approach:

The system is developed using the Unreal Engine, leveraging PBR materials to realistically present the underground working environment in virtual reality, and employs particle systems to simulate effects such as water spray and dust during operations.