论“互联网+”天基信息服务

论“互联网+”天基信息服务 The “Internet Plus” space-based information services 李德仁 LI Deren 1 2 first-author   武汉大学测绘遥感信息工程国家重点实验室     武汉大学测绘遥感信息工程国家重点实验室   State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, Wuhan University   地球空间信息技术协同创新中心     地球空间信息技术协同创新中心   Collaborative Innovation Center of Geospatial Technology Collaborative Innovation Center of Geospatial Technology "互联网+"代表了一种新的社会形态,为改革、创新、发展提供广阔的网络平台。随着互联网与传统产业的不断融合,"互联网+"正深刻改造、影响多个传统行业。"互联网+"给卫星对地观测与导航创造了大众化、普及化、智能化和实时化天基信息服务的有力条件。无处不在的地球空间信息大数据具有体量大、速度快、模态多样和真伪难辨的特性,形成了"数据海量、信息缺失、知识难觅"的局面。要实现地球空间全天时、全天候、全地域服务于每个人的目标,根本上解决现有地球空间信息服务系统覆盖能力有限、响应速度慢、体系协同能力弱的问题,满足大数据时代对地球空间信息"4R"服务要求,需要构建与地面网络深度耦合的"互联网+"天基信息服务体系。结合中国空天信息技术发展情况,介绍了"互联网+"天基信息服务体系建设的实施思路,分别对实现"互联网+"天基信息服务3个不同级别的特点进行了重点阐述。面向"互联网+"天基信息服务系统的要求,对地球空间信息学的重点支撑技术和系统发展前景进行了展望。 "Internet Plus" represents a new form of society that provides vast platforms of reform, innovation, and development. With the gradually deepening integration of the Internet and traditional industries, the "Internet Plus" has prompted profound transformation and has generated obvious influence on many traditional industries, such as manufacturing, agriculture, finance, education, and logistics. In the big data era, the instrumental acquisition of geo-information expands from professional air-space-ground sensors, such as satellites, airplanes,and UAVs, to billions of non-dedicated sensors connected to the Internet of things. Ubiquitous geospatial data sensors with communication,navigation, positioning, photo/video imaging, and broadband data transmission functions are in development. Furthermore, millions of video cameras in cities can continuously provide images with PB and EB data size. These ubiquitous sensors can greatly enhance the data acquisition ability of geomatics. The application of geomatics is becoming increasingly pervasive, expanding from expert users to global public users. However, given the volume, velocity, variety, and veracity of data, effectively extracting useful information from big data is difficult,thus resulting in situations of "massive data, missing information, and unavailable knowledge".The ultimate goal of geo-spatial information services is to deliver the right data, information, or knowledge to the right person in the right place at the right time. To provide global all-time, all-weather services to everyone, we should overcome the defects of existing geospatial information service systems, such as limitations of coverage area, slow response, and weaknesses of systematic interoperability.Therefore, we propose an "Internet Plus" space-based information service coupled with ground networks. In line with the principles of "one satellite with multiple functions, multi-satellite networking, and multiple network cooperation", a proposal for an integrated space-based information service system is presented. This space-based network with remote sensing, navigation, and communication functions can be seamlessly integrated with existing ground Internet and mobile networks. With the support of spatial-temporal big data, cloud computing,and intelligent terminals for space-based information services, all sectors of the national economy, industries, and the vast majority of public users will be provided with rapid, accurate, and intelligent positioning, navigation, timing, remote sensing, and communication services in real time. Considering the development condition of aerospace and information technologies, we describe a trilogy of an "Internet Plus"space-based information service system construction: web GIS in the primary stage, sensor web GIS in the intermediate stage, and smart sensor web GIS in the advanced stage. The key characteristics of the three stages are emphasized. Finally, the development prospects of the"Internet Plus" space-based information service system and its key technologies are discussed. “互联网+” 天基信息服务 空间信息网络 对地观测脑EOB（Earth Observation Brain） Internet Plus space-based information service space information network earth observation brain P209 国家自然科学基金项目（编号:91438203,41501383）;中央高校基本科研业务费专项资金项目（编号:2042016kf0163）~~ 2021-06-09 5 20