Multi-rotor UAVs flew slowly at 30 m altitude, using HD gimbals to scan old-town alleys frame-by-frame and stream footage to the command vehicle, detecting two crowd conflicts and guiding traffic via onboard loudspeaker to avert stampede risks.
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Air-Ground Traffic Management — Congestion Relief
UAVs flew along lanes measuring traffic density and average speed; on detecting congestion they pushed live footage to the signal-control center, which retimed lights, opened emergency lanes, and dispatched motorcycle police to reroute vehicles, easing congestion.
UAVs patrolled predefined routes, auto-identifying vehicles parked outside bays with drivers absent, capturing HD photo evidence and pushing it to the enforcement platform to generate citations and SMS notices to owners.
Air-Ground Traffic Management — Emergency Medicine Delivery
When an elderly visitor suffered angina and the ambulance could not reach him through the crowd, a logistics UAV carried emergency medicine and dropped it precisely on-site, buying critical treatment time.
Ningbo Expressway Pilot Inspection — AI Phone-Call & Seatbelt Detection
Gimbal cameras shot 4K 30fps continuously; the AI model performed edge detection on phone shapes and shoulder seatbelt lines, triggering alerts when an object stayed at the ear for 1.5 s or seatbelt absence probability exceeded 85%.
Ningbo Expressway Pilot Inspection — Aerial Congestion Coordination
Air-police UAVs used 30x zoom gimbals to monitor five lanes, measuring queue length and average speed; they located a rear-end collision as the cause and guided following vehicles away via loudspeaker, sending GPS and screenshots to motorcycle police for a 3-minute response.
Ningbo Expressway Pilot Inspection — Air-Ground Real-Time Interception & Warning
The command platform integrated UAV video, Amap traffic and motorcycle-police positioning into a dynamic duty map; on detecting violations it auto-routed the nearest officer with photo, GPS and intercept point, cutting average response time by 40%. For breakdowns or crashes, the UAV hovered to warn following drivers and guided tow trucks into the optimal lane to prevent secondary incidents.
