Novel Precision Augmentation and Integration of Low-Cost GNSS and MEMS Intertial Sensors for IoT Mobile

随着物联网设备数量的不断增长（预计到2020年将达到500亿），下一代物联网服务和应用的发展必须包括更精确的定位信息和更高的可用性。这种能力对于无人机（UAV）在密闭环境中的定位和导航、智能交通系统中自动驾驶汽车的连接、移动地图智能手机的地理参考至关重要。目前的精密系统是基于高级全球导航卫星系统（GNSS）和惯性导航系统（INS）。然而，由于空间和成本的限制，对于大多数配备低成本GNSS和惯性传感器的物联网移动设备来说，这些设备体积大，价格太贵。该项目是由台湾科学技术部（MOST）与两国的学术和工业合作伙伴共同提交的国际合作计划。它旨在开发一种新的集成GNSS/INS系统，利用低成本GNSS和MEMS惯性传感器为物联网移动设备实现高可用性精确定位。将开发一种新的GNSS增强系统架构，以促进对精确增强信号中断不敏感的精确定位。结合用于GNSS和惯性传感器的新的相互辅助和误差缓解方法，可以在不利环境中获得高可用性连续导航解决方案。该系统可以作为嵌入式解决方案应用于从智能手机、平板电脑、无人机到新兴无人驾驶汽车的各种物联网移动设备。

With the growing number of IoT devices (50 billion expected by 2020), the development of next-generation IoT services and applications must include more precise positioning information and higher availability. Such capabilities are crucial for positioning and navigation of Unmanned Aerial Vehicles (UAV) in confined environments, connecting self-driving cars in intelligent transportation systems, and geo-referencing of smartphones for mobile mapping. Current precise systems are based on high-grade global navigation satellite systems (GNSS) and inertial navigation systems (INS). However, these are large in size and too expensive for most IoT mobile devices that are equipped with low-cost GNSS and inertial sensors due to space and cost constraints. This project is a joint submission under the international collaborations program with the Ministry of Science and Technology (MOST) of Taiwan with academic and industrial collaborators in both countries. It aims at developing a new integrated GNSS/INS system to enable high availability precise positioning using low-cost GNSS and MEMS inertial sensors for IoT mobile devices. A novel GNSS augmentation system architecture will be developed to facilitate precise positioning insensitive to precision augmentation signal outages. Combined with new inter-aiding and error mitigation methodologies for GNSS and inertial sensors, high availability continuous navigation solutions become obtainable in adverse environments. Such a system can be applied as an embedded solution for a wide range of IoT mobile devices from smartphones, tablets, and UAVs, to emerging driverless cars.