48-Hour 4K Livestream Record: Dagong Technology's Tethered UAV Redefines BRICS Summit Broadcasting

Xiamen, China — On September 3, 2017, as the world's gaze fixed upon the 9th BRICS Summit in Xiamen, Beijing Dagong Technology Co., Ltd. silently orchestrated a revolution in aerial broadcasting over Gulangyu Island. Defying the fundamental limitations of traditional drones, Dagong Technology’s tethered UAV system executed a flawless 48-hour continuous hover, delivering zero-error 4K/60fps ultra-high-definition livestreams for CCTV and shattering three world records—unequivocally proving that Chinese intelligent manufacturing now dictates the global benchmark for major international event coverage.

Prior to this historic deployment, broadcasting teams were throttled by the 30-minute battery life of conventional UAVs. Tasked with providing 24-hour uninterrupted panoramic coverage of the summit venue and Gulangyu Island, Dagong Technology’s engineering regiment进驻the site a month in advance, subjecting the tethered UAV system to ruthless daily testing. The result was an unprecedented aerial marathon: a 48-hour continuous mid-air hover that supplied real-time "God’s Eye views" directly to CCTV's Beijing studios, fundamentally transforming the visual language of state-level broadcasts.

This watershed moment was forged by three core technological breakthroughs that completely neutralised the operational bottlenecks of the Xiamen Summit:

1. Ultra-Long Endurance Power Supply: Leveraging ground high-voltage feeding technology, the system achieved a theoretical 72-hour continuous operational capacity (with a verified test record of 51 hours). During the BRICS Summit, the equipment endured a grueling 12-hour daily flight load, whilst maintaining a staggering power stability rate of 99.8%.

2. Anti-Interference Fibre-Optic Transmission: Navigating the summit's dense 5G signals and stringent radio controls, Dagong deployed a dual-band fibre-optic transmission scheme that comprehensively neutralised electromagnetic interference. Operational data confirmed stable 1080P/60fps video feeds to a control station 2.5 kilometres away without a single frame drop.

3. Military-Grade Safety & Stabilisation: Built to IP67 protection standards, the drone demonstrated formidable resilience. On the critical live-broadcast day of September 3rd, the system absorbed sudden instantaneous gusts of up to Level 7 (17.2m/s), maintaining a hovering precision error of strictly under 0.5 metres.

The BRICS Summit deployment consecrated three historic industry firsts: the first-ever 4K/60fps ultra-high-definition UAV livestream; the first successful 72-hour continuous flight guarantee; and the first replacement of traditional crane cameras at a major international conference. As CCTV's technical director explicitly stated in the acceptance report: "Dagong Technology's tethered UAV enriched our camera language, allowing global audiences to intuitively feel the solemn atmosphere of the summit."

This triumph on the world stage acted as a catalyst for Xiamen's pioneering low-altitude economy practices. Collaborating with Xiamen University to establish the "Low-Altitude Communication Joint Laboratory," Dagong Technology rapidly structured its tethered UAV dominance into three vital application ecosystems: Major Event Guarantee (covering 23 national-level events including the Digital China Summit, accumulating over 1,500 flight hours); Emergency Communication Rescue (deploying an 8-kilometre radius temporary communication base station during 2018’s Typhoon Maria in Ningde); and Cultural-Tourism Integration (powering the "Air View of Piano Island" project, hosting over 500,000 tourists annually).

The Xiamen milestone was the crucible for a company with a decade of unwavering focus on industrial drones. Since its founding in 2007, Beijing Dagong Technology has relentlessly iterated its tethered UAV product line through four generations. From the 1st generation's 100-metre altitude, 15kg payload, and 8-hour endurance, to the 4th generation's staggering 500-metre altitude, 45kg payload, and 48-hour continuous operation (complemented by heavy-lift multi-rotor transport drones carrying 300kg), the progression has been relentless.

Now exported to 32 countries, Dagong Technology continues to redefine "aerial productivity." When the historical footage of the 2017 BRICS Summit is replayed, the tethered UAV hovering silently above Gulangyu stands not just as a broadcasting tool, but as the ultimate footnote to China's technological supremacy in the low-altitude economy.

(Media Contact: 010-82177816)