中国航天部门正在推进太空算力建设。中科宇航力箭一号运载火箭成功将9颗卫星送入轨道，其中包括具备星载AI智算能力的卫星1。三体计算星座于2025年首批12颗卫星升空，实现全轨互联，在轨算力达5POPS1。这些卫星单星算力最高达744TOPS，已部署20个AI模型1。
通过将数据处理能力从地面转移到太空，在轨AI的应用效率得到显著提升。西光贰号03星搭载3个AI气象模型，将观测预警流程从90分钟压缩至分钟级1。三体星座成功发现西北某地火情，展示了在轨AI的实际应用价值1。当前卫星数据中只有不到1/10能传回地面，其余大量浪费1，而在轨处理能力的提升有望改变这一状况。
国家层面的政策支持为太空互联网发展提供了新动力。《国家航天局推进商业航天高质量安全发展行动计划(2025—2027年)》提出支持民营企业参与1。虽然可靠性、成本、调度等挑战仍待解决，但这些进展表明太空互联网正在从设想逐步走向现实。
China's space sector has taken a significant step toward establishing orbital computing capabilities by deploying satellites equipped with artificial intelligence processing power. A rocket operated by China Space Launch Corporation successfully placed nine satellites into orbit, including units designed to perform AI computation in space1. This initiative aims to shift data processing operations from ground stations to orbital platforms, fundamentally transforming how satellite observations are analyzed and utilized.
The Three-Body Computing Constellation represents a cornerstone of this effort, with its first batch of twelve satellites scheduled to enter orbit in 20251. These satellites will achieve full inter-satellite connectivity and deliver combined computational capacity of 5 POPS (petaFLOPS operations per second)1. Individual satellites already in operation have demonstrated maximum processing capabilities of 744 TOPS (teraFLOPS), with twenty AI models already deployed on them1. The Xiguang 2-03 satellite exemplifies practical applications of this technology, incorporating three AI-driven weather forecasting models that compress observation and warning processes from ninety minutes down to minute-level response times1.
The strategic advantage of orbital AI processing is underscored by current operational constraints: less than one-tenth of satellite-collected data successfully transmits back to Earth, with the remainder being discarded1. The Three-Body Constellation has already demonstrated tangible value by successfully detecting a fire in northwestern China, showcasing how in-orbit AI analysis can enable rapid emergency response1. To accelerate this sector's development, China's National Space Administration has issued an action plan for 2025 through 2027 that commits to supporting private enterprises' participation in commercial space ventures1.
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