During a large-scale natural disaster emergency drill, the biplane expansion box was deployed as a mobile command center. Each box is pre-installed with communication systems, power systems and office equipment, which can accommodate multiple groups of command personnel working at the same time after deployment.

The unique double-wing expansion structure makes full use of limited space, and commanders can simultaneously analyze information, dispatch command and on-site communication. The cabinet is made of high-strength weatherproof materials, soundproofing materials and non-slip floors to ensure a safe, quiet and comfortable command environment.

After the exercise, the on-site commander commented: "This mobile command center has greatly improved the rescue efficiency, faster information transmission, and more flexible personnel deployment, which completely exceeded expectations." "This box can also be used for temporary office in emergencies, epidemic prevention and control sites or temporary medical points in disaster areas, and has multi-scenario applicability.