摘要
地图匹配技术是组合导航系统中的一项关键技术。高精度的地图匹配技术依赖于高精度的地图数据以及高复杂度的地图匹配算法,时间和空间数据量越来越大,与嵌入式Linux系统的有限资源已经不匹配,因此在已有的嵌入式系统中实现地图匹配技术具有实际应用价值。提出一种针对嵌入式系统的地图匹配技术实现方法,利用Linux操作系统的实时性和嵌入式数据库SQLite的微小性,实现了200ms内完成基于曲线匹配的地图匹配算法,匹配精度达到10m以内,显著提高了惯性导航的定位精度,满足组合导航系统对地图匹配技术的精度要求。
Map-Matching(MM)technology is a key technology in integrated navigation system.High-precision MM technology relies on high-precision map data and high-complex Map-Matching(MM)algorithm,needs more time and space,and do not match to limited resource in embedded Linux systems.Therefore,implementing MM technology in existing embedded systems has practical application value.This paper put forward an implementation method of MM technology for embedded system.Utilize the real-time characteristic of Linux OS and the tininess of embedded database SQLite,it can accomplish the MM algorithm based on Curve Matching in 200ms.The accuracy can up to 10m.It significantly improved the position accuracy of inertial navigation.
出处
《工业控制计算机》
2021年第1期42-43,共2页
Industrial Control Computer
