China on Friday launched its first satellite dedicated specifically to the energy engineering sector, marking a significant step in utilizing space technology for infrastructure monitoring.
The Tianyi-50 satellite, also known as Dianjian-1, was among the five payloads on the Lijian-1 Y13 carrier rocket, which blasted off from the Dongfeng commercial space innovation pilot zone in northwest China at 12:33 p.m. (Beijing Time).
The Dianjian-1 satellite is China's first remote sensing satellite for the energy infrastructure industry, weighing approximately 300 kilograms.
Equipped with an advanced flat-panel phased array radar system, it boasts a scanning swath of up to 200 kilometers and possesses all-weather, all-time, cloud-penetrating observation capabilities. As China's first radar remote sensing satellite specifically dedicated to serving energy engineering, it can be widely used for monitoring the construction of major projects in the sector.
Unlike traditional optical satellites, the biggest technological breakthrough of Dianjian-1 lies in its high-precision deformation monitoring capability. It can capture and monitor ground deformations or cracks down to the millimeter level, which is as thin as a hair.
After entering orbit, the satellite will primarily provide full life-cycle safety assurance for major national hydropower, water conservancy, transportation, and new energy infrastructure projects. It can also identify potential large-scale geological disasters, and provide precise data support for preventative maintenance of these projects, while accumulating big data on spatiotemporal deformation, according to experts.
"The orbit of Dianjian-1 is specifically designed to serve the construction of major infrastructure projects in western China, such as hydropower, highways, and railways. It orbits the Earth every 90 minutes and regularly visits our major western projects at 11:00 every day, which is the time when our synthetic aperture radar (SAR) has the best penetration and reflectivity," said Shan Shihan, satellite technology research and development engineer of Dianjian-1.
China launches first satellite dedicated for monitoring energy engineering infrastructure
More than 20 students from Ivy League universities in the United States visited China's Southwest Jiaotong University in on Tuesday, where they got a first-hand look at a fast-moving technological innovation that could power future transportation.
The students paid a visit to a special demonstration lab in Chengdu, the capital of southwest China's Sichuan Province, where they explored the world’s first high-temperature superconducting magnetic levitation prototype and test line, taking part in some fun hands-on experiments and even enjoying a brief trial ride.
Experts say the system could exceed speeds of 600 kilometers per hour, helping to further narrow the gap between high-speed rail and air travel.
The students' visit came as part of a week-long language and cultural exchange program, giving the young participants the chance to experience daily life in Chengdu while learning more about China.
The exchange event comes at a momentous time for China-U.S. relations, with U.S. President Donald Trump on Friday wrapping up a three-day state visit to China at the invitation of Chinese President Xi Jinping, which marked the first such trip by a U.S. president in nine years.
The students taking part in the Chengdu activity said exchanges like the one they have embarked on can help deepen trust and expand cooperation between the U.S. and China.
"The positive signals I am hoping to see is that right now I see China and the United States as two powerful and very important countries in this world. But they also both have a lot of potential, and I think that if they work together, they can make some tremendous change across the world," said Alex Davenport, a student from Mount Holyoke College.
"America and China are two of the largest superpowers in the world right now, and I think politically and culturally it’s really great to communicate with one another," said Caroline Ewald, a student at the University of Pittsburgh.
Others are hoping that Trump's landmark visit will also help improve ties.
"That's probably the biggest thing I am look for is try to cool down the trade stuff that's going on in the U.S.," said McKenna Lundy, a student from the University of Michigan.
China is seen as a world leader in maglev technology. Last December, the country's Hubei East Lake Laboratory announced a groundbreaking achievement, with its test line accelerating a 1.1-tonne model train to an astonishing 800 kilometers per hour in just 5.3 seconds -- a milestone in electromagnetic propulsion research.
The technology is also proving its worth at more manageable speeds, with a restaurant in the southern Chinese tech hub of Shenzhen going viral earlier this year after it used magnetic levitation to serve food, with plates seen floating along tracks to arrive smoothly in front of each diner.
US students get taste of high-speed technology with visit to top maglev lab in Sichuan
