测绘导航高精度定位关键技术及应用

人工智能(AI)、卫星导航及室内定位三大技术的快速发展持续推动测绘科技向智能化、学科交叉、信息融合的方向发展。指出了装备虚拟化与数据处理多样化将成为测绘导航的基本形态，拓展了测绘学科的内涵与外延。智能滤波是未来测绘导航定位理论发展的重要方向，AI芯片将成为测绘导航装备的关键部件，从而提高滤波效率与产品的实用性。给出了车载导航模组研制的技术流程，提出了模组原始信息同步采集与延时补偿、自适应定位算法及嵌入式固件时间分片优化等关键技术，研制了覆盖分米、厘米及毫米级定位精度的无缝组网定位、车载导航及变形监测模组，并研发了相应的终端系统，针对相应的应用领域，给出了各自应用的解决方案，以及具体的应用案例。

Key Technology and Application of High Precision Positioning in Surveying and Mapping Navigation

The rapid development of artificial intelligence (AI), Global Navigation Satellite System (GNSS) and indoor positioning technology continues to promote the development of surveying and mapping science and technology to the direction of intelligence, discipline intersection and information fusion. The paper points out that the virtualization of the equipment and the diversification of data processing will become the basic form of surveying and mapping navigation, which expands the connotation and extension of surveying and mapping discipline. Intelligent filtering is an important direction of the development of surveying, mapping, navigation and positioning theory in the future, and the AI chip technology will become the key component of surveying and mapping navigation equipment, which improves filtering efficiency and practicability of products. This paper presents the technical process of vehicle navigation module development. The key technologies of synchronous acquisition and delay compensation of original information of the module, adaptive positioning algorithm and optimization of embedded firmware time slicing are proposed. The modules of seamless netting positioning, vehicle navigation and deformation monitoring with decimeter, centimeter and millimeter level positioning accuracy are developed. The corresponding terminal system is developed, and according to the corresponding application fields, the respective application solutions are put forward, and the specific application cases are given.