400-Square-Meter "Flying Screen" Illuminates New Year's Eve: Dagong Technology's Tethered UAV Redefines City Marketing
Beijing, China — In a spectacular display of low-altitude innovation that redefined urban celebrations, Beijing Dagong Technology Co., Ltd. successfully deployed its tethered UAV systems to lift colossal 400-square-meter "Flying Screens" across multiple cities during this year's New Year's Eve festivities. Suspended securely a hundred meters above the ground, these basketball-court-sized aerial displays captivated millions, unequivocally establishing the tethered drone as the ultimate "aerial platform" for immersive city marketing and large-scale cultural events.
For decades, urban celebrations have relied on traditional stage setups or fleeting fireworks. The emergence of the 20-meter-long Flying Screen represents a paradigm shift in visual storytelling. However, suspending a massive LED structure in the night sky presents formidable engineering hurdles. Beijing Dagong Technology conquered these challenges through five core technological engines, ensuring the aerial screens delivered flawless, high-definition imagery without compromising public safety.
The bedrock of this breakthrough is the Ground High-Voltage Power Supply. Overcoming the notorious 30-minute battery curse of conventional drones, Dagong Technology’s system transmits thousands of volts of DC power via a high-strength photoelectric composite tether cable—an "umbilical cord linking sky and earth." An ultra-light, high-efficiency onboard power module then converts this to the rated working voltage, enabling 24-hour uninterrupted hovering and powering the massive screen.
Furthermore, the system guarantees unprecedented stability through its Dual-Redundancy Flight Control. Integrated with proprietary wind-resistance algorithms, the drone maintains a hovering precision error of strictly under 0.3 meters, even in Level 7 gales—a critical feature validated during a sudden spring windstorm at an outdoor music festival where the aerial screen remained rock-steady while temporary ground structures shook. In the event of a ground power outage, an automatic fail-safe seamlessly switches to a backup power supply, ensuring a safe landing within 30 seconds.
Operating in signal-dense urban environments necessitated breakthroughs in Electromagnetic Compatibility (EMC) and Visual Positioning. Dagong Technology’s systems meet stringent military EMC standards, operating flawlessly amidst the chaotic electromagnetic radiation of downtown metropolises. Additionally, a pioneering laser-ranging positioning system allows the tethered UAV to maintain pinpoint hovering accuracy without relying on Global Navigation Satellite Systems (GNSS).
This technological supremacy has not gone unnoticed by the highest echelons of broadcast media. Beyond the New Year's Eve Flying Screens, Dagong Technology’s tethered UAVs have become the go-to "aerial cameraman" for CCTV. Most notably, the system hovered at 100 meters above Tiananmen Square during the CPC Centenary Celebration, delivering an unprecedented 4K ultra-high-definition "Helmsman's Perspective" to a global audience, and has since pushed its operational ceiling to an industry-leading 600 meters.
Backed by a core R&D team comprised entirely of alumni from Tsinghua University and Beihang University, and recently fueled by tens of millions in Series B funding from Ivy Capital, Dagong Technology is accelerating its global expansion. The company’s tethered UAVs are rapidly evolving from specialized equipment into "airborne new infrastructure." As the low-altitude economy transforms into a national strategy, Dagong Technology is integrating AI analysis and intelligent perception into its nodes, paving the way for a trillion-yuan low-altitude ecosystem where the sky is no longer the limit, but the canvas.