分类： technology

China’s monumental Zhundong-Wannan ±1100 kV ultra-high-voltage direct current (UHVDC) transmission project has achieved a historic energy transmission milestone, delivering over 400 billion kilowatt-hours of electricity since commencing operations in 2019. According to State Grid Xinjiang Electric Power Co., the cumulative transmission volume reached 402.19 billion kWh as of March 27, 2026.

This engineering marvel originates at the Changji Converter Station in Xinjiang Uygur Autonomous Region and traverses an extraordinary 3,293-kilometer route across six provinces and autonomous regions. The infrastructure project passes through Gansu Province, Ningxia Hui Autonomous Region, Shaanxi Province, and Henan Province before concluding in Anhui Province in eastern China.

The transmission system currently maintains three world records for UHV projects: highest voltage level, largest transmission capacity, and longest transmission distance. Since 2021, it has consistently achieved the highest annual transmission volume among all national UHV projects, setting a remarkable national record with an average daily transmission of 169 million kWh.

In 2025 alone, the project transmitted 69.87 billion kWh of electricity, representing nearly 20% of Anhui Province’s total power consumption. This massive energy transfer demonstrates China’s technological leadership in ultra-high-voltage transmission and its commitment to addressing regional energy distribution imbalances by delivering power from energy-rich western regions to high-demand eastern provinces.

Beijing has introduced sweeping new regulations governing unmanned aerial vehicles, establishing a comprehensive framework that will take effect May 1st. The legislation, approved by the Standing Committee of Beijing Municipal People’s Congress, represents a significant step in balancing technological advancement with public security concerns.

The regulatory framework mandates pre-approval for all outdoor drone operations within the capital while creating designated flight zones specifically for research, educational, and industrial testing purposes. According to Xiong Jinghua, deputy director of the Standing Committee’s legal affairs committee, the legislation establishes clear standards for drone operations, sales, transportation, and storage while preserving opportunities for legitimate research and production activities.

Educational institutions receive special consideration under the new rules, with schools and universities permitted to purchase, store, and operate drones through approved channels to support academic instruction, scientific experimentation, and technological development.

Yanqing district has been designated as a primary hub for dedicated flight operations, leveraging its existing low-altitude flight management expertise and smart flight network spanning 168 square kilometers. District Vice Governor Su Lihua emphasized that activities in these zones will commence gradually under rigorous safety protocols.

The regulations impose strict controls on manufacturing and distribution, prohibiting illegal production, assembly, modification, or tampering with drone systems. The sale or transport of drones and core components within Beijing is banned unless the equipment has completed real-name registration and information verification procedures.

Authorities characterize these measures as reflecting Beijing’s dual commitment to ensuring low-altitude safety while fostering orderly innovation in drone technology for industrial, research, and educational applications.

Shanghai’s prestigious Fudan University has unveiled groundbreaking advancements in next-generation space infrastructure through its development of very low Earth orbit (VLEO) satellite technology. The institution announced on Thursday that it has achieved significant breakthroughs in core technologies that could position China as a leader in the emerging space sector.

The university revealed that a prototype satellite is nearing completion, with an engineering model expected by late 2026 or early 2027. This development comes at a crucial time when the United States maintains dominance in satellite infrastructure with over 11,000 satellites in orbit, representing more than 70% of global operations. SpaceX’s Starlink constellation alone accounts for over 10,000 satellites, creating substantial first-mover advantages in the space industry.

VLEO satellites operate at altitudes between 150-300 kilometers, significantly lower than traditional low-earth orbit satellites that function at 350-2,000 kilometers. This proximity to Earth provides exceptional advantages including reduced launch costs (up to 90% savings), minimal radiation exposure, easier deorbiting processes, and substantially less space debris. The technological superiority of VLEO systems includes Earth observation resolution reaching 0.1-0.5 meters—comparable to aerial drone capabilities—and communication speeds more than ten times faster than conventional satellites with signal latency as low as 5 milliseconds, approaching fiber-optic performance levels.

The primary challenge in VLEO deployment has been atmospheric drag at these lower altitudes, which requires continuous propulsion to maintain orbital stability. Fudan University’s breakthrough solution involves innovative air-breathing plasma propulsion technology that captures nitrogen and oxygen from the thin atmosphere to use as propellant. This system achieves perfect thrust-drag balance, enabling indefinite orbital maintenance with a design life exceeding two years.

Professor Zhao Qiang, Party Secretary of the Institute of Modern Physics at Fudan University, emphasized the institution’s commitment to “advancing core technologies and promoting the integration of industry, academia and research to establish VLEO as a strategic advantage for China.”

The university also announced plans for a joint research initiative focusing on civilian applications of VLEO technology in the Lancang-Mekong region. Associate Professor Yang Yang revealed that the project may eventually deploy five additional satellites, forming a six-satellite constellation capable of revisiting the same ground location within one hour, significantly enhancing regional economic development and public welfare applications.

Concurrently, Fudan University celebrated the successful 18-month operation of its “Fudan No. 1 Lancang-Mekong Future Satellite,” which has produced remarkable scientific achievements including China’s first domestic “front view” image of the sun using Mg II k spectra. This breakthrough enables high-resolution extreme ultraviolet spectral observations better than 0.1 nanometer, contributing significantly to solar activity research and space weather forecasting capabilities. The research has already been integrated into Fudan University’s space weather prediction models, demonstrating promising results in ionospheric space weather forecasting.

At a prominent Beijing forum held this week, scientific leaders unveiled a groundbreaking list of the top ten frontier questions poised to shape the future trajectory of global Positioning, Navigation, and Timing (PNT) systems. This strategic initiative marks a significant effort to direct international research and development toward the most critical challenges in navigation technology.

The identified questions emphasize the deepening convergence between traditional satellite navigation and cutting-edge innovations including artificial intelligence, quantum sensing technologies, and advanced communication systems. These interdisciplinary intersections highlight the evolving nature of PNT as a field that increasingly blends electronic science, information technology, and computational advancements.

Forum organizers structured the questions around three pivotal thematic areas: spatiotemporal intelligence, quantum technology applications, and next-generation information communication infrastructure. These theoretical foundations connect directly to practical implementation scenarios such as autonomous vehicle navigation, embodied artificial intelligence systems, unmanned aerial and terrestrial platforms, intelligent transportation networks, deep-space exploration missions, and the rapidly expanding commercial aerospace sector.

PNT has emerged as a critically important interdisciplinary domain that synthesizes expertise from multiple technological spheres. Its advancement carries profound implications beyond technical circles, affecting national security frameworks, economic development patterns, and technological sovereignty. The reliability of PNT infrastructure underpins modern societal functions from financial transaction timestamping to emergency response coordination while simultaneously representing a strategic national capability.

The journal Satellite Navigation spearheaded this unprecedented effort to identify and publish these strategic questions, representing China’s growing commitment to establishing scientific leadership in fundamental technologies. This initiative has generated substantial interest within the global research community, potentially setting international collaboration agendas for coming decades as nations increasingly recognize PNT capabilities as essential infrastructure.

Shenyang, the capital of Liaoning province, has officially deployed a fleet of twelve S6 autonomous sweeping vehicles, marking the operational launch of China’s pioneering fully integrated autonomous sanitation initiative. This groundbreaking project represents the world’s first large-scale implementation of mass-produced L4-level autonomous cleaning technology in municipal maintenance.

The advanced vehicles, which assembled at the Industrial Museum of China on Monday, have commenced operations throughout Tiexi district’s primary thoroughfares. These robotic cleaners are integrated with Clean Pro Group’s sophisticated intelligent inspection and autonomous operation platform, enabling them to conduct comprehensive cleaning assignments while simultaneously performing quality assessment functions.

Technologically, the S6 units employ a sophisticated multi-sensor fusion system incorporating LiDAR, high-definition vision technology, and millimeter-wave radar to achieve complete 360-degree environmental perception without blind spots. This sensory capability allows the vehicles to autonomously navigate urban environments, dynamically plan optimal cleaning routes, detect and avoid pedestrians and obstacles, and perform precision edge-cleaning operations without human intervention.

The deployment signifies a major advancement in smart city infrastructure and represents China’s most ambitious implementation of autonomous technology in municipal services to date. This initiative positions Shenyang at the forefront of urban innovation, potentially establishing a new global benchmark for automated urban maintenance systems.

China has marked another milestone in its ambitious space program with the successful orbital deployment of the Shiyan 33 experimental satellite. The mission commenced on March 27, 2026, when a Long March 2C carrier rocket lifted off precisely at 12:11 pm from the Jiuquan Satellite Launch Center, situated within China’s northwestern Gobi Desert region.

Operated by the China Aerospace Science and Technology Corp (CASC), the state-owned aerospace and defense contractor, the launch vehicle featured an advanced upper stage propulsion system that efficiently delivered the research satellite to its predetermined orbit. The technical specifications of the Long March 2C reveal a substantial launch vehicle measuring 43 meters in length with a 3.35-meter diameter, capable of lifting 242.5 metric tons at launch. This medium-lift rocket primarily serves to deploy payloads to both low-Earth and sun-synchronous orbits.

This launch represents the 19th space mission conducted by China in 2026 alone and constitutes the 635th overall flight of the Long March rocket series since its inception. The continuous development and deployment of the Long March fleet underscore China’s growing capabilities in space technology and satellite deployment, reinforcing the nation’s position as a major player in the global space industry.

The Shiyan series of satellites typically serve experimental purposes, testing new technologies and systems in space environments. While specific details regarding Shiyan 33’s mission objectives remain undisclosed, such satellites commonly contribute to advancements in Earth observation, communications technology, or scientific research capabilities.

A series of landmark legal decisions this week has intensified global scrutiny on social media platforms’ impact on youth mental health. In consecutive rulings, Los Angeles and New Mexico juries found Meta and YouTube legally responsible for harms inflicted on children through their services, marking a significant validation of long-standing concerns about digital platform dangers.

Despite these judicial victories, child safety advocates emphasize that without comprehensive federal legislation, meaningful change remains elusive. The current regulatory vacuum in the United States contrasts sharply with aggressive measures being implemented worldwide to protect young digital citizens.

Australia has emerged as a pioneering force, establishing the first nationwide prohibition barring children under 16 from social media platforms. The legislation imposes severe penalties—up to AU$50 million ($34 million)—for non-compliant companies, though questions persist about implementation methods and potential impacts on privacy rights.

Brazil has enacted groundbreaking legislation requiring minors under 16 to link social accounts to parental supervision and banning addictive design features including infinite scroll and autoplay videos. The South American nation now mandates robust age verification systems surpassing simple self-declaration.

Indonesia is poised to become Southeast Asia’s first nation to restrict social media access for under-16 users, targeting ‘high-risk’ platforms including TikTok, YouTube, and Facebook. The phased implementation begins March 28, 2024.

European nations are advancing similar protections. France has approved legislation banning social media for under-15s and prohibiting mobile phones in high schools, while Spain plans to restrict access for those under 16. Denmark is pursuing comparable measures, and the UK is considering teenage social media bans as part of enhanced child protection frameworks.

Malaysia has introduced licensing requirements for major platforms, compelling them to implement age verification and content safety measures as part of broader digital oversight strengthening.

These international developments highlight a growing consensus that platform self-regulation is insufficient to address the complex challenges of protecting children in digital environments. As nations increasingly adopt legislative solutions, pressure mounts on US lawmakers to advance the stalled Kids Online Safety Act, which gained Senate approval but has since languished without full congressional adoption.

China’s ambitious Shiziyang Bridge project has reached a critical construction milestone with the completion of its twin 342-meter main towers, marking significant advancement in the infrastructure development of the Guangdong-Hong Kong-Macao Greater Bay Area. This engineering marvel forms the centerpiece of the 35-kilometer Shiziyang Link, strategically connecting Guangzhou’s Nansha district with Dongguan’s Shatian and Humen townships across the Pearl River estuary.

The bridge represents a paradigm shift in suspension bridge technology, incorporating groundbreaking innovations that address complex challenges including dense waterways and limited cross-river passage resources. Its revolutionary design features a double-deck configuration accommodating 16 traffic lanes and a record-setting 2,180-meter main span that clears the river in a single leap.

Engineering breakthroughs extend to the tower construction, where developers implemented a novel steel plate-concrete composite structure that reduces wall thickness by 50% and decreases concrete usage by 43% compared to conventional designs. This innovation alone reduces carbon dioxide emissions by approximately 53,000 tons while significantly enhancing structural stability under the immense pressure of over 200,000 metric tons.

The project has pioneered large-scale application of C80 high-strength concrete, capable of withstanding 8,000 tons of pressure per square meter. Construction teams overcame substantial technical challenges, including managing hydration heat effects during massive pours exceeding 300 cubic meters. Through extensive research, engineers developed an advanced air-cooled aggregate system and intelligent pouring platform featuring automated temperature measurement, flow adjustment, and precision vibration positioning.

According to project officials, the Shiziyang Bridge is poised to establish five world records for double-deck suspension bridges upon completion, spanning main span length, lane capacity, tower height, anchor diameter, and main cable dimensions. The project has generated comprehensive technological standards for ultra-long-span suspension bridges, significantly advancing China’s capabilities in mega-infrastructure development.

With tower construction completed, the project now advances to the superstructure phase, with cable saddle installation and catwalk construction preparations underway. Project planners anticipate implementing the pilot cable crossing operation during the latter half of this year.