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 Insights - The visit by the Secretary of the Provincial Party Committee emphasizes the importance of leveraging surveying and geographic information resources to support the modernization practices in Xi'an [1] Group 1: Government Support and Strategic Importance - The Secretary highlighted the role of the Shaanxi Surveying and Geographic Information Bureau as a "national team" in basic surveying, crucial for economic and social development [1] - There is a commitment from the city of Xi'an to support the continuous enhancement of the surveying service capabilities of the bureau to better serve national strategies and integrate into local economic and social development [1] Group 2: Application and Technological Integration - The Secretary called for improved communication and collaboration among city departments to expand the application of surveying and geographic information in various fields such as land planning, urban management, ecological protection, and emergency rescue [1] - The establishment of an integrated regulatory system for the Qinling "space-ground network" was emphasized to enhance monitoring functions related to geological disaster prevention, governance of "five chaos," and forest fire prevention [1]

Core Viewpoint - The article highlights the achievements and dedication of Zheng Sanjun, a senior engineer at the Gansu Provincial Surveying and Mapping Engineering Institute, who has been recognized as a national advanced worker for his contributions to surveying and mapping in challenging environments [2][19]. Group 1: Professional Achievements - Zheng Sanjun has transformed from a surveying apprentice to an industry benchmark through persistent effort and dedication, often carrying heavy surveying equipment to high-altitude observation points [4][19]. - He has led significant projects, including the first national geographic condition survey in Gansu, completing tasks ahead of schedule despite harsh conditions [7][17]. - His work has resulted in over 3,000 surveying markers being surveyed and maintained, emphasizing the importance of these markers in safeguarding national geographic information [4][16]. Group 2: Technical Contributions - Zheng has been instrumental in adopting advanced surveying techniques, such as large-scale sparse control point satellite imagery, which requires high precision in field control points [4][19]. - He has contributed to the first natural resource registration in the Gansu section of the Giant Panda National Park, expanding the spatial dimension of natural resource registration [8][17]. Group 3: Community Engagement - In 2017, Zheng was appointed as the team leader and first secretary of a poverty alleviation initiative in a remote village, successfully reducing the number of impoverished households from 114 to 8 over two years [10][17]. - His efforts in community engagement included personalized assistance measures and fostering relationships with villagers, leading to significant improvements in the village's socio-economic conditions [10][17]. Group 4: Recognition and Legacy - Zheng has received multiple accolades, including "Gansu Provincial Technical Model," "Gansu Provincial Excellent Communist Party Member," and "Gansu Provincial May Day Labor Medal," reflecting his commitment to his profession [17][19]. - His philosophy of using professional skills to protect the environment and pass on craftsmanship is a testament to his dedication to the surveying profession [8][17].