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这项技术要替代GPS:信号强100倍,精度10cm
半导体行业观察· 2025-06-08 01:16
第一个GPS系统于1993年投入使用。几十年来,它已成为世界赖以生存的基础技术之一。GPS卫星发 射的精确定位、导航和授时(PNT)信号,其作用远不止手机上的谷歌地图。它们可以引导海上石油 钻井平台的钻头,为金融交易添加时间戳,并帮助同步世界各地的电网。 公众号记得加星标⭐️,第一时间看推送不会错过。 来源:内容 编译自 mit 科技评论 。 本月晚些时候,一颗不起眼的150公斤重的卫星将搭载SpaceX Transporter 14火箭发射升空。进入轨 道后,它将测试旨在弥补美国全球定位系统(GPS)缺陷的超高精度下一代卫星导航技术。 这颗卫星是名为"脉冲星"(Pulsar)的卫星群的首颗卫星,该卫星群由总部位于加州的Xona Space Systems公司开发。该公司最终计划在低地球轨道上部署一个由258颗卫星组成的卫星群。虽然这些 卫星的运行方式与用于GPS的卫星类似,但它们的轨道距离地球表面约12,000英里,发射的信号更 强、更精确,也更难干扰。 Xona 首席技术官兼联合创始人泰勒·里德 (Tyler Reid) 表示:"正因为距离更短,我们发出的信号将 比 GPS 信号强大约一百倍。这意味着干扰 ...
今日份热点大集合,快进来吃瓜!
Sou Hu Cai Jing· 2025-05-08 01:12
茅台文旅官宣张艺兴为代言人,之前网上传得沸沸扬扬,这下终于尘埃落定!看来茅台真的要发力年轻市场啦~ 政策 & 市场动态:利率、退市,影响几何? Moutai Cultural Tourism officially announced Zhang Yixing as its spokesperson. It had been widely rumored online before, and now it's finally settled! It seems that Moutai is really going all out in the young market~ 宝子们,今天的大新闻一个接一个,从科技圈到娱乐圈,从金融界到消费市场,全是爆点!快来和我一起看看吧 热点回应:年薪、代言,真假几何? Hot Topic Responses: What's the Truth About Salaries and Endorsements? 理想汽车回应网传李想年薪 6.39 亿,原来这 6.39 亿里大部分是股份支付薪酬费用,实际薪资只有 266 万元,这波辟谣速度满分 SpaceX 获许增加星舰发射次数, ...
华测导航(300627) - 300627华测导航投资者关系管理信息20250428
2025-04-27 17:04
Financial Performance - In 2024, the company achieved a revenue of CNY 3,251.01 million, a year-on-year increase of 21.38% [3] - The net profit attributable to shareholders reached CNY 583.40 million, up 29.89% from the previous year [3] - The net profit after deducting non-recurring gains and losses was CNY 503.79 million, reflecting a growth of 35.31% [3] - In Q1 2025, the company reported a revenue of CNY 789.12 million, a 27.91% increase year-on-year [4] - The net profit attributable to shareholders for Q1 2025 was CNY 142.74 million, up 38.50% from the same period last year [5] R&D Investment - In 2024, R&D investment totaled CNY 469.02 million, a 1.49% increase year-on-year, accounting for 14.43% of total revenue [3] - The company has focused on high-precision positioning chips and autonomous driving products, among other strategic projects [3] Product Performance - The company launched several key products, including the RS series measurement systems and the Navigator NX612 autonomous driving system [3] - RTK sales exceeded 100,000 units, while the agricultural autonomous driving system sold over 60,000 units in 2024 [3] - Cumulative deliveries of automotive-grade products surpassed 300,000 units by the end of 2024 [9] Market Segmentation - The resource and public utilities segment generated CNY 1,425.25 million in revenue, a 26.41% increase [3] - The construction and infrastructure segment achieved CNY 1,052.59 million, up 8.97% [3] - The geographic information segment reported CNY 588.50 million, a growth of 38.44% [3] - The robotics and autonomous driving segment earned CNY 184.67 million, increasing by 15.53% [3] Profitability Metrics - The overall gross margin for 2024 was 58.13%, an increase of 1.07% from the previous year [4] - The sales expense ratio was 18.45%, down 0.59%, while the management expense ratio rose to 7.92%, an increase of 0.56% [4] - Operating cash flow net amount reached CNY 659.06 million, a 47.99% increase year-on-year [4] Future Outlook - The company aims for a net profit of CNY 730 million in 2025, targeting a growth of approximately 25% [5] - The three-dimensional intelligent business is expected to continue growing, driven by advancements in technology and market demand [7] - The company plans to maintain high R&D investment to enhance its product offerings and market competitiveness [12]