China Petroleum Harbin Petrochemical Company’s full-time fire brigade procured one set of the Tianshu-10 Tethered UAV System. The system is mainly used for routine patrol inspection in the petrochemical plant area, on-site reconnaissance for emergency rescue, and visual command and dispatch. Built around a self-organizing mesh quadrotor UAV, a dual-sensor gimbal camera, and a tethered power supply system, the solution enables long-endurance hovering, full-area communication connectivity, and high-definition reconnaissance, providing integrated air-ground technical support for fire safety and emergency response in petrochemical plant areas.