基于无人机的空间传感网系统是无人机和空间传感技术相融合的典型应用，综合了空间无人机协同飞行、数据收集、地面传感网组网、数据传输交换的多空间复杂系统，通过3C技术的深度协作与有机融合，可实现地空物理系统与信息系统的实时感知、信息交互和动态控制，具有广阔的发展前景。然而，当前的空间传感网在多源数据收集、传输与安全性方面存在一定不足。为此，本课题拟定首先结合无人机空间传感网大规模、区域化和空间性特点，研究基于FGNETs（Flying and Ground Networkds：FGNETs）的网络体系架构；随后，研究空间传感网系统在从空间物理环境感知获取信息同时，如何对空间物理世界进行反馈控制、研究基于地形和能耗方面的优化覆盖、空地接入网关互联架构、数据控制与处理、通信和数据获取、安全可信等关键问题的基础上，给出基于QoS和信息安全的空间传感网体系架构，优化空间传感网的数据收集。

The spatial sensing network system based on UAV is a typical application of unmanned aerial vehicle and spatial sensing technology. It combines the technologies of cooperative flight of space unmanned aerial vehicle, data collection, networking of the ground sensor network as well as data exchanging. With the help of deep cooperation and organic integration of the technologies about computation, communication and control, it can realize real time perception about ground air physical system and information system, information interaction and information interaction. However, the current spatial sensor network has some shortcomings in the aspects of multi source data collection, transmission and security. To solve this problem, on the basis of the large-scale, regionalized and spatial characteristics of UAV space sensor network, we first formulate a network architecture based on FGNETs (Flying and Ground Networkds). Then, we study how the spatial sensing network system can obtain information from the spatial physical environment, and how to control the space physical world. In addition, research on optimal coverage based on terrain and energy consumption as well as the space access gateway interconnection architecture are also important in this project. Meanwhile, some key scientific problems like data control and processing, communication and data acquisition as well as security and trustworthiness are also the focuses of research. Finally, in order to optimize the data collection of space sensor network, the spatial sensing network architecture based on QoS and information security should be built.