At dawn over the Hubei section of the Yangtze River in Wuhan, a drone lifts off automatically from its nest on a riverside barge as morning mist blankets the water, cruising along a preset route to transmit real-time high-definition imagery of bridge zones, shoals, and navigation markers. Meanwhile, the "Waterway Vision" command platform onshore receives the aerial data simultaneously, allowing staff to conduct a complete "cloud-based inspection" of the entire waterway without leaving their desks.
Drones have now become the "aerial vanguards" safeguarding the golden waterway for the Yangtze River Waterway Administration. Entering the 15th Five-Year Plan period, the administration is accelerating smart transportation development by promoting the full-scale adoption of drone patrols across its jurisdiction. It has pioneered a new air-water three-dimensional intelligent inspection model, achieving breakthroughs in waterway maintenance efficiency, cost reduction, and risk mitigation, injecting strong momentum into the construction of a smart Yangtze River waterway.
Comprehensive Network: A Fully Established 3D Inspection System
The Yangtze River Waterway Administration has made drone application a core pillar of modern waterway governance, coordinating the integrated deployment of equipment, pilots, and drone nests, and completing the leap from local pilots to full-scale application across the entire mainline. Currently, 14 waterway units under the administration are equipped with over 170 drones of various types, 34 standardized drone nests have been built and put into operation, and more than 50 certified professional pilots have been trained, including 36 beyond-visual-line-of-sight operators, ensuring professional flight teams cover all key navigational segments across the upper, middle, and lower reaches of the Yangtze River.
During the flood season, the Nantong section of the Yangtze sees rapid currents and heavy vessel traffic under bridges, leaving little room for navigation aid vessels to maneuver. As early as August last year, the Nantong Waterway Office introduced drones to unlock new perspectives for waterway inspections, using them to quickly reach areas that traditional methods could not access in time and transmit high-definition imagery and data in real time. These drones conduct comprehensive, high-precision monitoring of vessel traffic, navigation aid status, and surrounding water environments, enabling waterway management authorities to grasp conditions at the earliest opportunity and promptly identify and address potential issues.
This year, the administration has continued to expand its equipment arsenal, with plans to cover 72 grassroots waterway offices by year-end. By integrating drones, video surveillance, remote telemetry terminals for navigation aids, and waterway maintenance vessels, the administration has established a "four-in-one" air-water inspection system that thoroughly covers blind spots of traditional vessel patrols, including bridge navigational waters, shoal evolution areas, and geological hazard sites. In the first half of the year, cumulative drone patrol hours across the mainline exceeded 1,582 hours, with each drone flying an average of 2.2 hours per month across six sorties. Overall inspection efficiency has improved by more than 50% compared to traditional vessel patrols, achieving leapfrog gains in data collection coverage and emergency response speed.
Multi-Scenario Integration: A Qualitative Shift in Maintenance Models
The administration has fully leveraged the advantages of drone mobility and contactless operations, innovatively implementing a standardized workflow of "drone-first patrol, vessel follow-up verification and disposal." This covers navigation aid fault checks, waterway facility damage assessments, construction site oversight, and emergency incident surveys, enabling "minute-level" on-site evidence collection and verification for all types of navigational hazards.
Technological innovation continues to unlock new "drone-plus" application scenarios. The administration has pioneered "drone plus flexible robotic arm" technology for automatic navigation light replacement, completing remote, fully automated lamp changes in just 15 minutes—three times faster than manual operations near water. Companion drone-mounted high-pressure water jets perform contactless cleaning of navigation aids, significantly reducing safety risks for workers near water or at heights. Additionally, drones equipped with LiDAR sensors conduct shoreline surveys and 3D waterway modeling, achieving centimeter-level accuracy to provide a precise digital foundation for shoal evolution analysis and waterway regulation projects.
In emergency rescue, drones have been integrated into the administration's full-domain emergency response system. In the event of incidents such as vessel collisions with navigation aids, vessel groundings, or riverbank geological failures, drones can immediately ascend for close-range reconnaissance, transmitting real-time imagery to support command and dispatch, thereby streamlining the entire chain of hazard detection, assessment, and response.
Dual Drivers: Strengthening the Foundation for Standardized and Smart Operations
To ensure safe, compliant, and efficient drone operations, the administration is pursuing a dual-track approach of standard-setting and digital empowerment. Under the guidance of the Water Transport Bureau of the Ministry of Transport, and led by the administration's technical experts, the "Technical Guidelines for Low-Altitude Drone Waterway Inspection (Trial)" have been compiled, alongside the refinement of over 30 supporting systems covering flight safety management, equipment maintenance, and record archiving. This establishes a full-process standardization framework, including per-drone equipment files, complete flight log retention, and operational review optimization.
The digital management hub, the "Waterway Vision" platform, has also been completed and deployed. It centrally collects, stores, and manages drone inspection imagery and waterway operational outputs, achieving unified oversight of all patrol data across the network and providing real-time digital support for precision maintenance and scientific scheduling. To date, waterway units in Shanghai, Yibin, and Chongqing have successfully obtained full-domain, long-term flight permits, creating replicable models for airspace operations and raising the overall standard of compliant flight practices across the network.
Currently, the Yangtze River mainline traverses multiple controlled and no-fly zones, where routine flight filing procedures are cumbersome, and there is no fast-track approval channel for cross-jurisdictional or emergency flights. The incomplete airspace coordination mechanism remains the primary constraint on large-scale, routine drone deployment. The administration will focus on clearing compliant flight channels, replicating the proven experience of long-term airspace permits in the three pilot regions, establishing multi-party long-term coordination mechanisms, fully implementing annual flight whitelists and simplified batch filing models, and creating dedicated green channels for emergency rescue flights to minimize the burden of grassroots flight application processes and guarantee immediate takeoff for routine inspections and emergency response.
Upgrades to equipment and digital platforms are advancing in parallel. The administration will actively seek policy support to incorporate drone equipment, intelligent management platforms, AI-powered recognition and warning systems, and multi-source data integration projects into the mid-to-long-term plan for smart waterway construction, closing the gap in R&D investment for intelligent applications. It will continue to push for full coverage of drone points at the grassroots level, gradually achieving spatial awareness coverage of key navigational segments, and improving mechanisms for cross-unit data sharing and unified industry technical standards. By fostering new quality productive forces in low-altitude intelligent inspection, it aims to support the digital and intelligent upgrade of the Yangtze River waterway and build a high-quality, modern version 2.0 of the "smooth, safe, optimal, smart, and beautiful" waterway.
Looking ahead, the administration will continue to deepen the intelligent application of low-altitude drones, expand innovative operational scenarios, enhance airspace coordination support, and iteratively upgrade smart management platforms. Through technological advancement, it will steadily reduce waterway maintenance costs, eliminate safety risks for frontline workers, and improve mainline navigational support capabilities, propelling the high-quality development of Yangtze River shipping.