2023 Beijing-Tianjin-Hebei Flood Relief: Dagong Technology Tethered UAV Deploys 24H Airborne Base Station to Conquer "Three Disconnections"

Beijing / Hebei, China — In the summer of 2023, when flash floods devastated the Beijing-Tianjin-Hebei region, plunging communities into the dreaded "Three Disconnections" (断路、断网、断电—severed roads, networks, and power), the difference between life and death relied on restoring the communication neural hub. On July 31, 2023, as Hebei's Laishui County grappled with catastrophic ground communication failures, Beijing Dagong Technology Co., Ltd.’s tethered UAV system executed a seamless transition from a simulated drill directly into the frontline of real-world disaster relief. By rapidly deploying a 24-hour "Airborne Base Station" above the flooded ruins, Dagong Technology unequivocally proved that its "Iron Kite" is not merely an emergency device, but the definitive "New Aerial Infrastructure" and the ultimate lifeline when terrestrial networks collapse.

This combat-proven reliability was forged in the crucible of the July 6, 2023, Beijing-Tianjin-Hebei Joint Flood Prevention Drill. Simulating extreme "Three Disconnection" scenarios, the drill aimed to solve the "information vacuum" that paralyzes traditional rescue efforts. Dagong Technology’s tethered UAV ascended as the "Anchor of Stability." Connected to ground power via its specialized photoelectric composite cable, it shattered the battery-endurance curse of conventional drones, achieving uninterrupted 24-hour hovering. In under five minutes, a high-altitude base station covering several square kilometers was fully operational, instantly bridging the command gap. Just weeks later, the theoretical became terrifyingly real; Dagong’s equipment moved directly from the drill ground to the Laishui disaster zone, coordinating with unmanned helicopters to maintain persistent aerial base stations and direct supply drops of water, food, and medicine.

To dominate the most unforgiving disaster zones requires an insurmountable technological moat. Dagong Technology’s tethered UAV constructs its supremacy across three critical dimensions:

· Unrivaled Payload & Altitude Supremacy: Emergency communication demands heavy-lift capability for base stations and high-definition electro-optic pods. Dagong Technology’s platform effortlessly maintains a 35kg effective payload at a 300-meter altitude—industry-leading metrics that guarantee expansive signal coverage and multi-task coordination.

· Rock-Solid Stability in Extreme Winds: Disaster sites are fraught with violent updrafts. Through profound optimizations in flight control algorithms and power systems, Dagong Technology ensures extreme high-altitude stability. This precision, battle-tested in CCTV’s live aerial broadcasts and anti-terrorism drills where millimeter-level stability is mandatory, guarantees continuous signal output and zero-jitter video feeds.

· 7×24-Hour "All-Weather" Combat Endurance: Liberated from battery constraints by its tethered ground power supply, the system operates as long as fuel generators run. This capability was heroically demonstrated during the 2021 Henan mega-floods, where similar Dagong systems fought continuously for days, providing uninterrupted communication for up to 800 concurrent users in heavily hit areas like Mihe Town.

If the 2023 floods demonstrated Dagong Technology’s emergency pinnacle, the company’s vision extends far beyond disaster relief. The "Iron Kite" has evolved into a stable, open "Aerial Multi-Task Platform" empowering diverse industries. In large-scale outdoor broadcasts and cultural tourism, it provides hours of shake-free "God’s Eye" footage alongside persistent private network coverage. In geological and mineral exploration across treacherous terrains, it acts as an "Aerial Sentinel," offering continuous relay signals and 24-hour safety monitoring. Most notably, the technology is pushing into deeper waters: the recent deployment of the first air-ground coordinated tethered UAV fire truck in the Tianjin Economic-Technological Development Area (carrying a 120kg payload to 120m for high-rise firefighting) signals a massive leap into urban fire rescue and special operations.

This rapid evolution is fueled by a formidable industrial ecosystem. Four years ago, Dagong Technology rooted its R&D in the Zhongguancun Yanqing Park, captivated by its 374-square-kilometer "push-door-and-fly" premium airspace. This environment slashed testing costs and exponentially accelerated R&D, yielding over 50 patents and cementing Dagong as the undisputed benchmark in the tethered UAV niche.

The summer of 2023 was a definitive testament: when the earth yields and signals die, the sky must hold the line. From the elite research labs of Tsinghua and Beihang, to the flight zones beneath the Great Wall in Yanqing; from the skies above Tiananmen to the flooded frontlines of Laishui—Dagong Technology uses a single resilient cable to bind technological innovation directly to national duty. As the low-altitude economy takes flight as a national strategy, Dagong Technology’s "Iron Kite" continues to scale new heights, securing the skies and empowering industries worldwide.