1. Precisely locate equipment area-wide, greatly reduce search time, and improve flight support efficiency: Combining Bluetooth, RFID, and solar GPS positioning technologies, the system covers both indoor warehouse and outdoor apron scenarios — replacing manual item-by-item counting and blanket searches. Managers can view real-time dolly and trailer locations on a visual map and quickly reassign idle equipment — reducing cargo transfer waiting time and avoiding flight ground delays caused by missing equipment. <><>2. Automatically recognize ULD loading status and activate ground equipment assets: The system automatically recognizes whether a dolly is carrying a ULD, distinguishing empty from loaded equipment, and accurately counts usage frequency and idle duration. It automatically alerts on long-dwelling, abnormally offline, or suspected-lost non-powered equipment — eliminating equipment mixing, random parking, and asset loss — improving overall dolly / trailer turnaround utilization and reducing new equipment procurement. <><>3. Automatically sense whether a loaded ULD is empty or built up: Weight sensors automatically capture ULD loading status, reducing manual apron operations and enabling automatic ULD status acquisition. <><>4. Reduce yard management labor costs and ease frontline workload: Moves away from the traditional model of dedicated staff doing fixed-point counts and manual ledger registration; equipment movement, parking, and usage data are retained automatically without repeated manual records. This reduces staffing for yard inspection and counting posts, lowers rostering and daily management costs, and lets new staff quickly master equipment dispatch control.