提供安全可靠的低轨卫星互联网服务（创新故事）

Core Viewpoint - The development of the Qianfan satellite constellation aims to provide global high-speed, real-time, secure, and reliable low-Earth orbit satellite internet services, effectively moving the internet into space [1][5]. Group 1: Technological Innovations - The Qianfan satellite project requires a high number of satellites, with a target of 324 satellites to be launched within one to two years, and potentially doubling that number for full commercial realization [1]. - The project has adopted a "one rocket, 18 satellites" launch model to reduce costs and increase the number of satellites deployed, marking a new path for large-scale satellite manufacturing and launching [1][5]. - Innovations include a flat-panel integrated structure for satellites, the use of a rotating separation technology for stacked launches, and the implementation of krypton gas propulsion to significantly lower costs [1][2]. Group 2: Challenges and Iterative Development - The transition from traditional satellite structures to a flat design required extensive redesign and testing, including simulations to ensure safe and efficient satellite separation during launches [2]. - The project faces challenges in aligning user needs with application scenarios, necessitating collaborative innovation and feedback loops between enterprises and the project team [2][4]. - A strategy of "developing one generation, pre-researching one generation, and planning one generation" is employed to ensure continuous iteration and improvement of satellite designs based on real-world feedback [2][4]. Group 3: Application and Future Vision - The Qianfan satellite constellation is actively testing and demonstrating applications, aiming to provide seamless communication in remote areas, such as high-definition calls on ships in the Pacific and real-time interactions in rural areas [3][5]. - The project is positioned as a significant step towards achieving a global, high-speed, and reliable low-Earth orbit satellite internet, contributing to national strategic security and autonomy in the space internet domain [5]. - The vision of "universal connectivity" is being accelerated as the project progresses, with the potential to transform communication in previously underserved regions [5].