郭庆华利用设备采集数据。程凯 摄 人物小传 郭庆华，男，出生于广东汕头，北京大学博雅特聘教授，北京大学遥感与地理信息系统研究所所长，主 要研究遥感和地理信息系统方法及其在生态与环境科学中的应用。 中国到底有多少棵树？ 在一张地图上，呈现出深浅各异的绿色，可以明显地看到，南部和东北部会更绿……这是我国第一 张"树密度地图"，它测算出960多万平方公里土地上的树木覆盖情况——截至2020年，我国约有1426亿 棵树，平均树密度约为每公顷689棵，相当于人均拥有约100棵树。这张"树密度地图"今年4月由北京大 学郭庆华团队联合中国科学院等科研机构发布。 制作"树密度地图"、探索"树有多高"，10余年的努力与坚持，北京大学遥感与地理信息系统研究所所长 郭庆华带领团队，取得一个个突破性成果。 通过扫描森林，用AI算法"看片子"、"数"树，最后用卫星遥感"拼"出全国的森林全景图 这张"树密度地图"，直观呈现出我国树木分布的具体情况—— 从地理区域看，西南地区树最多，约360亿棵；东北、东南和西南地区的树木数量和密度，显著高于北 方和西北地区； 从流域看，长江流域以约496亿棵树的绝对优势位居首位。 制作"树密度地图"，郭 ...

Core Viewpoint - Hesai Technology (HSAI.US) saw a rise of over 3%, closing at $23.06, following the opening of the 2025 World Robot Conference (WRC) in Beijing on August 8, where the company showcased its new lidar products [1] Group 1: Product Launch - Hesai Technology presented its new lidar products, including the mini hemispherical 3D lidar JT series designed specifically for robots and the next-generation solid-state lidar FTX [1] - The JT series is based on Hesai's fourth-generation self-developed chip architecture, claiming to provide a 360° x 189° hemispherical field of view, compact design for discreet installation, and supports 256-line resolution [1] - Since its launch less than five months ago, the JT series has delivered 100,000 units, suitable for service robots, cleaning robots, and other applications [1]

FTX激光雷达测距可达30米（10%反射率），点频49.2万点每秒，体积较上一代减少66%，外露视窗仅 47x29mm，旨在赋能各类智能机器人感知能力。 此外，现场还展示了禾赛与合作伙伴Vbot维他动力和星动纪元联合演示应用：Vbot智能伴随机器人实现 自主路径规划和人群避障；星动纪元人形服务机器人星动Q5具备44高自由度和3D激光雷达融合视觉导 航，适应展厅、家庭等多场景。据高工机器人产业研究所数据，禾赛科技在2025年上半年中国机器人领 域3D激光雷达出货量排名第一。（罗宁） 责任编辑：刘万里 SF014 8月8日，2025世界机器人大会（简称"WRC"）在北京盛大开幕。禾赛科技展示了其激光雷达新品，包 括专为机器人设计的迷你型超半球3D激光雷达JT系列和新一代纯固态激光雷达FTX。 据介绍，JT系列基于禾赛第四代自研芯片架构，宣称提供360°x 189°超半球视野，外形小巧便于隐蔽安 装，支持256线分辨率，发布不足5个月已交付10万台，适用于服务机器人、清扫机器人等场景。 ...

Core Viewpoint - Shenzhen Ledong Robot Co., Ltd. is planning to pursue an IPO in Hong Kong, focusing on both its core business of LiDAR technology and its expansion into the lawn mowing robot sector [1][4]. Group 1: Company Overview - Ledong Robot is currently the leading company in the dToF LiDAR market, with over 720,000 units shipped last year [2][4]. - The company has achieved a compound annual growth rate (CAGR) of 41.4%, with total revenue increasing from 233 million yuan in 2022 to 467.3 million yuan in 2024 [2]. - Despite revenue growth, the company reported net losses of 73.1 million yuan in 2022, 68.5 million yuan in 2023, and 56.5 million yuan in 2024 [2]. Group 2: Product and Technology - Ledong Robot's LiDAR products include various types such as dToF, triangulation LiDAR, solid-state linear LiDAR, single-point LiDAR, 3D structured light sensors, ultrasonic sensors, and four-eye matrix vision sensors [2]. - The dToF LiDAR technology has achieved a 40% reduction in size and a 25% decrease in power consumption, meeting the design needs for lightweight and low-power robots [2]. Group 3: Market Position and Strategy - The company serves seven out of the top ten global household service robot companies and five out of the top five commercial service robot companies [2]. - Ledong Robot is positioning itself as the first provider of consumer-grade MINI dToF LiDAR, focusing on applications in household, commercial, and industrial robots [4]. - The company is also entering the lawn mowing robot market, with revenue from this segment increasing from 63,000 yuan in 2023 to 2.327 million yuan in 2024, accounting for 5% of total revenue [5]. Group 4: Industry Trends - The global lawn mowing robot market is expected to exceed $1.5 billion in 2024 and reach $3.9 billion by 2029, with a CAGR of 21% [6]. - Other LiDAR companies, such as Suteng Juchuang, are also entering the lawn mowing robot sector, indicating a competitive landscape [6].

Core Viewpoint - The article discusses the rapid rise of Chasing, a company in the lawn mowing robot industry, which has achieved significant sales milestones and is seen as a strong contender to disrupt the market despite skepticism from industry peers [2][4][8]. Group 1: Sales and Market Position - Chasing's lawn mowing robot sales reached over 100,000 units by the end of February 2023, including 20,000 sales orders and 80,000 units taken by distributors [3]. - The company is projected to surpass 150,000 units soon and aims for 200,000 units [4]. - Industry insiders believe Chasing has the potential to become one of the top three players in the lawn mowing robot market by 2025 [7][8]. Group 2: Technology and Innovation - Chasing is the first company to implement laser radar technology in lawn mowing robots, diverging from the mainstream "RTK + vision" approach [9][10]. - The decision to adopt laser radar was made quickly after observing a new product launch from a competitor, allowing Chasing to secure a market position [14][15]. - The laser radar technology is expected to provide higher precision and easier deployment compared to RTK solutions, which are more susceptible to interference [16]. Group 3: Cost Reduction Strategies - The article highlights a "price war" in the laser radar market, with the expectation that costs will decrease significantly as production scales up [18][20]. - Chasing's experience in mass production and established supply chains allows it to leverage cost advantages that new entrants may struggle to achieve [21][22]. - The company has developed a comprehensive capability from product design to market delivery, which is crucial in the competitive landscape of lawn mowing robots [22]. Group 4: Channel Strategy - The article emphasizes the importance of distribution channels, noting that most new entrants focus on product development without recognizing the significance of securing channels [26][32]. - Chasing has successfully negotiated partnerships with several major retailers in Europe, which is critical for market penetration [34][35]. - The company is actively expanding its channel strategy, aiming to differentiate its offerings in various retail environments [36][38]. Group 5: Industry Outlook - The lawn mowing robot market is still in its early stages, with companies like Chasing, Songling, and Ninebot actively developing solutions to address market challenges [41][42]. - As the industry evolves, the competition is expected to intensify, with established players likely to maintain visibility while new entrants vie for market share [42].