中新网成都8月15日电 (李隽)"作为我国自主建设、独立运行的卫星导航系统，始终以高精度、高可靠的 服务赋能各行各业，北斗规模化应用让水利水电工程的勘察、设计、施工、运维等各个环节都更加精 准、高效、安全。"中国测绘学会理事长宋超智15日在致辞时说。 2024年6月，华能澜沧江水电股份有限公司与中国水利水电第四工程局有限公司共同携手，在澜沧江上 游水电工程中展开北斗规模化应用实践，先后攻克高寒、高海拔、高落差、复杂地形等多项技术难题， 截至目前，已建成了22座北斗连续运行参考站，经过试运行，系统稳定，数据精准。 澜沧江流域作为中国清洁能源开发的重要战略区域，其工程建设全过程都体现了测绘科技与工程实践的 深度融合与创新。 图为启动仪式现场。李隽摄 图为启动仪式现场。李隽摄 当日，北斗规模化应用研讨会暨澜沧江流域上游水电站GNSS连续运行参考站启动仪式在四川省成都市 举行。标志着中国水电行业首个利用北斗卫星导航系统建成的流域规模化应用项目正式投运。 宋超智表示，当前，在全球智能技术发展与产业格局重塑的发展背景下，水利水电行业正加速向智能 化、精准化、高效化方向迈进，这对时空信息服务提出了更高要求，北斗的规模化应用 ...

Core Viewpoint - The Beidou Navigation Industry is a crucial part of China's strategic emerging industries, experiencing rapid development and becoming a symbol of technological innovation and industrial upgrading in the country [1]. Group 1: Development and Achievements - The Beidou Satellite Navigation System is China's independently built and operated global satellite navigation system, with continuous breakthroughs in core technologies and steady progress in satellite networking, enhancing signal accuracy and coverage [1][3]. - By the end of 2020, the Beidou system achieved global coverage and interoperability with other global navigation systems, marking a significant milestone in its development [1]. - The successful launch of the 59th and 60th Beidou satellites on September 19, 2024, marked the completion of the Beidou-3 global satellite navigation system project, entering a new phase in global satellite navigation [1]. Group 2: Technological Advancements - Continuous technological breakthroughs have been the driving force behind Beidou's development, with significant improvements in satellite payloads, atomic clocks, and inter-satellite links, leading to positioning accuracy better than 10 meters and speed measurement accuracy better than 0.2 meters/second [3]. - The increasing domestic production rate of key components, such as Beidou chips, has enhanced the industry's self-control capabilities and improved the overall industrial chain [3]. Group 3: Market Penetration and Applications - As of the first half of 2024, the application scale of Beidou terminal devices (excluding consumer electronics) exceeded 27 million units, with a year-on-year growth of 17.4% and a penetration rate exceeding 50% in key industries [4]. - Beidou has transitioned from a "high-end configuration" to a "standard configuration" in consumer electronics, with over 98% of domestic smartphones supporting Beidou positioning [4]. - Beidou technology is being integrated into various emerging scenarios, such as smart cities and precision agriculture, significantly improving operational efficiency in sectors like fishing and agriculture [4]. Group 4: Policy Support and Industry Growth - The robust development of the Beidou industry is supported by national strategic planning and local policy implementation, with numerous policies issued since 2010 to encourage the development of Beidou navigation [5][8]. - More than 20 provinces and cities have included the Beidou industry in their "14th Five-Year Plan," aiming to establish national-level industrial bases and form trillion-yuan industrial clusters [8]. Group 5: Leading Enterprises - A number of competitive leading enterprises have emerged in the Beidou industry, with some exporting to over 120 countries and regions, particularly in areas related to the Belt and Road Initiative [10]. - Beijing Beidou Star Navigation Technology Co., Ltd. is identified as a leading enterprise in the Beidou navigation industry, focusing on becoming a global leader in intelligent location services and microwave ceramic components [14][17]. Group 6: Future Prospects - The total number of Beidou terminal devices is projected to exceed 1.4 billion units by the end of 2023, indicating a strong market presence [19]. - The core industry output value of Beidou navigation products is expected to exceed 170 billion yuan by 2029, driven by national and local policies promoting its application in various sectors [26].

Core Viewpoint - The article discusses the implications of China's BeiDou satellite navigation system, arguing that it is not a weapon but a critical technology that enhances global navigation reliability and precision, and that the U.S. risks national security and economic competitiveness by limiting access to it [1][2][3] Group 1: Technology and Security - The BeiDou system is a competitor to GPS and has raised suspicions among U.S. officials, leading to investigations by the Federal Communications Commission [1] - Limiting access to BeiDou could weaken the resilience of Positioning, Navigation, and Timing (PNT) systems, ultimately harming U.S. national security and commercial operations [1] - Tests indicate that disabling BeiDou could reduce positioning accuracy by 30% to 40%, significantly impacting navigation, logistics, and emergency services [1] Group 2: Economic Impact - Precision positioning is foundational for key industries such as logistics, agriculture, aviation, and automation; excluding foreign satellite navigation systems could lead to increased costs, deployment delays, and reduced competitiveness for U.S. companies [3] - China is likely to continue forming partnerships with countries seeking open and reliable navigation services, which could further enhance its influence in international technology standards [3] - The BeiDou system is viewed as a tool for soft power rather than a weapon, contradicting claims that it could be used as an active warfare tool [3]

Core Viewpoint - The recent statement by U.S. Secretary of State Rubio highlights the limited influence the U.S. has over China's internal affairs, acknowledging the failure of past U.S. interference policies towards China [1][4]. Group 1: U.S.-China Relations - Rubio's comments reflect a recognition of the ineffectiveness of U.S. attempts to influence China's development through various means, including political criticism, trade wars, and cultural interventions [1][3]. - The trade war initiated during Trump's administration serves as a prime example of U.S. failure, as it quickly led to negotiations rather than the intended concessions from China [3][6]. - U.S. technology restrictions aimed at hindering China's tech development have not deterred Chinese companies, which have instead increased their investment in R&D and achieved significant advancements [3][6]. Group 2: Domestic Political Reactions - Rubio's statement has sparked significant backlash within U.S. domestic politics, particularly from Democrats who question his capabilities as Secretary of State [4][6]. - The division between the two major political parties in the U.S. regarding China policy reveals a lack of coherent strategy in addressing China's growing influence [6][9]. Group 3: Economic Context - China's robust domestic market and manufacturing capabilities position it as a critical player in global supply chains, contrasting with the U.S. challenges of industrial hollowing and debt crises [9]. - The U.S. is urged to abandon its confrontational economic policies towards China, as continued opposition may harm its own economic interests [9].

Core Insights - The article highlights the significant advancements and contributions of Liu Jingnan in the field of satellite navigation and positioning systems, particularly the BeiDou system, which is now recognized as one of the most accurate and multifunctional satellite navigation systems globally [4][11]. Industry Overview - The satellite navigation and positioning service industry in China is projected to reach a value of 575.8 billion yuan by 2024, with approximately 288 million smartphones supporting BeiDou positioning capabilities [2]. - The daily call volume for BeiDou positioning services in electronic navigation maps is reported to be as high as 600 billion times, indicating the extensive integration of this technology into daily life [2]. Technological Development - Liu Jingnan's research has focused on solving coordinate transformation issues, which are crucial for the effective application of satellite navigation systems. His work has laid a theoretical foundation for the development of Global Navigation Satellite Systems (GNSS) [6][9]. - The BeiDou system has transitioned from relying on foreign GPS technology to establishing an independent and high-precision navigation system, significantly improving positioning accuracy in various applications, including oil exploration [11][12]. Application and Integration - The BeiDou system is being integrated with emerging technologies such as 5G, big data, and artificial intelligence, which is expected to create new business models and enhance its application across various sectors, including smart driving and smart cities [13]. - The establishment of the BeiDou ground-based enhancement system has enabled centimeter-level positioning services across the country, breaking the foreign monopoly in high-precision satellite positioning [11][12]. Future Outlook - Liu Jingnan emphasizes the need for continuous innovation and talent development in the field of satellite navigation, aiming to expand the application of the BeiDou system into deeper domains such as deep earth, deep sea, and deep space [14].

Core Points - The article highlights the advancements in China's surveying technology over the past 50 years, particularly in measuring the height of Mount Everest, showcasing a significant evolution from traditional methods to modern techniques [1][3][12] - It emphasizes the importance of technological innovation in achieving more accurate measurements, with the precision improving from ±0.35 meters in 1975 to ±0.05 meters in 2020 [8][10][12] Group 1: Historical Milestones - In 1975, China conducted its first independent measurement of Mount Everest, achieving a height of 8848.13 meters, which was recognized internationally [3][4][22] - The 2005 measurement utilized modern techniques such as GPS and snow depth radar, marking a significant historical breakthrough by providing the first accurate measurement of the Everest rock surface [5][23] - The 2020 measurement incorporated advanced technologies, including aerial gravity measurement and the Beidou satellite system, significantly enhancing the accuracy of the height measurement [6][24] Group 2: Technological Advancements - The transition from traditional optical measurement methods to satellite-based positioning systems in the 1990s marked a pivotal shift in surveying technology [4][23] - The 2020 measurement collected over 1.44 billion data points, far exceeding the data collected in previous measurements, showcasing advancements in data processing and technology [6][24] - The integration of artificial intelligence, big data, and cloud computing into surveying practices is expected to revolutionize the field, leading to smarter and more efficient measurement techniques [16][19] Group 3: Future Directions - The article discusses the ongoing transformation towards intelligent surveying technologies, with a goal to complete the transition from digital to intelligent surveying by 2035 [19] - Emphasis is placed on the need for continuous innovation to address key technological challenges and enhance the capabilities of surveying equipment [18][19] - The future of surveying in China is projected to focus on building a comprehensive spatial-temporal system that integrates various technologies for improved data acquisition and processing [19][20]

Core Viewpoint - The article commemorates the 50th anniversary of China's first independent measurement of Mount Everest's height, highlighting the significance of accurate height measurement for international standards and environmental monitoring [1][3]. Measurement Process - The precise determination of Mount Everest's height aims to resolve the inconsistencies in international height data, providing essential information for glacier monitoring and ecological studies [3]. - The 2020 measurement utilized a global elevation benchmark agreed upon by China and Nepal, incorporating gravity measurements and advanced satellite data to create a high-precision gravity field model of the Everest region [3][5]. - The measurement involved a team of climbers establishing a benchmark at the summit, with simultaneous triangulation and intersection measurements conducted from six reference points at the mountain's base [4]. Technology and Equipment - The climbers employed Beidou satellite navigation signals for accurate positioning and used ice and snow radar to measure the thickness of the snow layer at the summit [5]. - The measurement process required human presence due to the extreme conditions at the summit, which rendered helicopters and drones ineffective for stable operation [8][11]. Climatic Conditions - The measurements have historically been conducted in May, as this month offers a brief window of relatively stable weather conditions, avoiding the harsh winds and precipitation typical of other months [12][13]. - The peak's summit area is limited in size, making helicopter landings impractical, and the measurement equipment necessitates direct human operation to ensure accuracy [11][14].

Group 1 - The Beidou satellite navigation system has established a dominant position in the Chinese market, with an economic impact growth of over 7% in 2024, generating a total economic output of 575.8 billion RMB, a year-on-year increase of 7.39% [1] - Beidou is compatible with 288 million smartphones in China, primarily produced by domestic brands like Huawei and Xiaomi, with over 1 trillion positioning uses daily [1] - Navigation applications such as Baidu Maps and Amap utilize the Beidou system, achieving a total daily mileage of 4 billion kilometers [1] Group 2 - The development of the Beidou system has spurred investments in related hardware and services, including chips, algorithms, data processing, terminal devices, and ground infrastructure [2] - Beidou is expanding its global coverage, enhancing positioning accuracy in major Asian countries, including Southeast Asia and nations involved in China's Belt and Road Initiative [2] - The operator of the Beidou system plans to replace the existing satellite constellation with advanced new satellites by 2035, which will support real-time positioning accurate to within centimeters [2]

Group 1 - The core viewpoint of the articles highlights the rapid growth and transformation of China's commercial space industry, particularly in satellite manufacturing and deployment, with a focus on unlocking the value of satellite data [1][3][4] - China currently has approximately 100 registered satellite constellations, primarily commercial, with large-scale plans like the Qianfan constellation aiming to deploy over 10,000 satellites [1][3] - The industry is transitioning from traditional labor-intensive production to flexible, intelligent manufacturing processes, significantly increasing production capacity [3] Group 2 - The report from CCID Research indicates that the commercial satellite manufacturing sector in China is entering a mass production phase, with companies like Geshihangtian and Yanhai Aerospace ramping up their production capabilities [3][4] - By 2025, it is projected that China will have the second-largest number of satellites in orbit globally, with the satellite manufacturing market value expected to reach between 368.8 billion to 463.7 billion yuan by 2030 [3][4] - The application of satellite data is expanding across various fields, including communication, navigation, and remote sensing, with a notable shift towards international collaboration and service provision [4][5] Group 3 - Industry experts point out that the current usage of satellite data by clients is only a small fraction of the total available data, indicating a need for better alignment between supply and demand in the commercial space sector [5] - There is a call for the establishment of multi-dimensional market trading platforms and enhanced policy support to facilitate the practical application of satellite technologies [5]

Core Viewpoint - The development of the BeiDou satellite navigation system in Qinghai has made significant progress over the past decade, advancing in three main areas: network construction, application, and popularization [3][16]. Group 1: BeiDou Network Construction - In 2015, the Qinghai Provincial Institute of Basic Surveying and Mapping established a research team to address the urgent need for spatial benchmarks in various sectors, leading to the construction of a BeiDou navigation system [5][6]. - By July 2021, the team completed the establishment of 116 BeiDou satellite navigation positioning reference stations across economically developed areas and major counties in Qinghai, laying the foundation for future applications [6][7]. - The modern surveying benchmark service system in Qinghai has been built around a core of "BeiDou reference station network + digital elevation benchmark model + high-grade gravity network," achieving multiple technological milestones and awards [6][7][8]. Group 2: BeiDou Applications - The BeiDou high-precision benchmark service platform has provided over 2 million spatial benchmark services to 312 enterprises and institutions, replacing traditional control networks and enhancing efficiency [7][10]. - In various applications, such as road construction in Guoluo Prefecture, the integration of BeiDou technology with drones has improved surveying efficiency by over 60% and reduced labor costs by 50% [10][11]. - The BeiDou system has also enhanced meteorological monitoring capabilities in Haidong City, allowing for rapid updates and accurate tracking of weather conditions, thus improving disaster prevention and water resource management [11][12]. Group 3: BeiDou Popularization - The establishment of the Qinghai BeiDou Scientific Popularization Base has facilitated over 80 educational activities, reaching more than 10,000 students and promoting awareness of the BeiDou system [14][19]. - The base aims to cultivate innovation and scientific spirit among students, particularly in remote and ethnic areas, by providing hands-on experiences with BeiDou technology [14][15]. - In 2024, Qinghai's BeiDou team participated in the "15th BeiDou Cup" national youth aerospace technology competition, achieving notable success with multiple awards [14][15].