Core Points - The article highlights the significance of the Chinese vertical datum point located in Qingdao, which serves as the national reference for elevation measurements, established in 1957 and maintained by dedicated personnel over the decades [1][4][10] Group 1: Importance of the Vertical Datum Point - The vertical datum point, established on Mount Guanshan in Qingdao, is crucial for unifying elevation measurements across China, allowing for consistent mapping and engineering projects [3][4] - The height of the vertical datum point is precisely measured at 72.260 meters, which is used as the baseline for all elevation calculations in the country [2][4] Group 2: Historical Context and Development - Prior to the establishment of the unified vertical datum point, multiple reference points existed, leading to inconsistencies in elevation data across regions, sometimes differing by 50 to 60 meters [3][4] - The selection of Qingdao as the location for the vertical datum point was based on its geographical advantages, including stable geological conditions and a long history of tidal observations dating back to 1898 [3][4] Group 3: Maintenance and Management - The management of the vertical datum point has been entrusted to the Qingdao Surveying and Mapping Research Institute since 1963, with dedicated personnel ensuring its upkeep and protection [4][5] - The current caretakers utilize modern technology, including geographic information systems and big data, to enhance the management and protection of the vertical datum point [7] Group 4: Contribution to National Development - The vertical datum point has facilitated the development of a comprehensive elevation network across China, supporting various sectors including infrastructure, transportation, and urban planning [8][9] - The surveying team is actively involved in providing comprehensive surveying services for urban projects, including the Qingdao urban rail transit system, ensuring safety and efficiency in construction [9]

2小时顶升一层，2天完成钢筋绑扎，48小时完成梁、楼板钢筋绑扎，6天就能盖好一层楼……在济南国 际贸易产业园（以下简称"济南国贸园"）建设现场，技术人员向科技日报记者展示了这背后的技术支 撑：机器人正担当建设大任。 "济南国贸园建造过程中，实施六大类59小项智能建造技术，实现了从设计、生产、施工到运维的全链 条数字化管理。"济南国贸园项目负责人刘少锋向记者介绍，在设计阶段，项目组采用BIM（建筑信息 模型）技术，以3D模型为数据源，完成施工图设计的全过程任务。这就好比用3D打印机设计一个建筑 虚拟版本，从图纸到施工"一个模型全程用到底"，避免了"图纸打架"造成的返工。"此外，我们通过数 字模拟化，把建筑像'乐高积木'一样拆分预制、现场拼装，大大提高了标准化设计水平和现场拼装效 率。"刘汇东说。 数字化平台及智能设备不仅提升了建设效率，也保证了安全。在济南国贸园建设过程中，团队以智慧工 地平台为核心，融合多种数智化技术，便于管理人员对现场施工进度、质量等及时进行纠偏，在确保安 全质量的同时，提升整体管理效能。此外，团队还应用卸料平台超载报警、碳排放双控监测、智能机 电、AI安全识别等智能设备，深度链接各个环节， ...

5月9日，莱赛激光（股票代码：871263）2024年度业绩说明会在全景网顺利举行。公司董事长兼总经理 陆建红、董事兼副总经理、财务总监孙小兰、董事会秘书冯锦侠等高管团队与投资者进行了深入交流， 就公司业绩表现、技术研发、市场布局及未来发展方向等问题作出详细回应。尽管2024年受行业周期影 响，公司业绩面临一定压力，但管理层展现出积极应对的态度，强调将通过技术创新、产品升级和市场 拓展等多方面举措推动业务发展，并积极布局低空经济、人工智能等新兴领域，为公司未来增长奠定基 础。 2024年，受全球宏观经济波动及房地产行业调整影响，莱赛激光净利润同比有所下降。孙小兰在回应投 资者提问时表示，利润下滑主要源于收入规模收缩、毛利减少以及费用端压力。不过，公司已制定针对 性改善计划。 在国内市场，公司将持续优化产品结构，开发适销对路的新品，例如已获得终端客户认可的地坪智能测 量机器人系统等，并调整经销商网络以巩固市场份额。在国际市场，公司加速自主品牌"莱赛激光"的全 球化布局，在稳固欧美市场的同时，积极拓展亚洲、非洲等新兴区域，精准对接客户需求。 关于投资者关心的股价表现，冯锦侠提醒投资者理性看待市场波动，强调公司将通 ...

Group 1: Company Overview and Financial Performance - The company focuses on high-precision navigation and positioning technology, developing a complete technology chain from hardware to algorithms and industry solutions [2][3] - In 2024, the company achieved a revenue of ¥1,219,549,535.51, a year-on-year increase of approximately 2.80%, while the net profit attributable to shareholders was -¥12,449,794.70, reflecting a 97.08% increase compared to the previous year [3] - In Q1 2025, the company reported a revenue of ¥151,988,324.18, marking a year-on-year growth of about 30.60% [3] Group 2: Smart Driving and Automotive Products - The company provides smart driving-related hardware and software products, achieving approximately 40% growth in its smart driving business in 2024 [4] - Over 60 models from various automotive manufacturers have successfully integrated the company's products, including high-precision positioning antennas and inertial measurement units (IMU) [4][5] - The company collaborates with partners like Baidu Apollo and China Mobile to develop advanced smart driving solutions [5] Group 3: Overseas Business and Tariff Impact - The company's overseas sales primarily consist of high-precision positioning terminals and optical products, with no sales in the U.S. market [6] - The company is minimally affected by U.S. tariffs as it imports very few materials from the U.S. and has domestic alternatives available [6][10] Group 4: Monitoring and Disaster Prevention - The company has developed universal disaster monitoring equipment, successfully deployed in over 20 provinces for geological disaster monitoring [6] - The equipment has been recognized by the Natural Resources Ministry for its effectiveness in harsh environments [6] Group 5: Low-altitude Economy and Marine Applications - The company utilizes drones and laser radar for surveying and emergency rescue, providing comprehensive solutions for various applications [7] - In marine applications, the company offers advanced detection equipment and has established a comprehensive monitoring system integrating various technologies [8][9] Group 6: Import Dependency and Future Development - In 2024, imported components accounted for about 10% of total procurement, with most having domestic alternatives [10] - The company is exploring further development in measurement robots and high-precision positioning technologies for various industries, including smart driving and robotics [11]