摘要
近年来,地磁作为室内定位基准已经成为热点研究领域。本文深入研究了地磁室内定位技术,并通过大量试验,分析了室内磁性材料及电子设备对磁场的干扰,进一步探究了室内磁场特性,证明了磁场信息作为定位依据的可行性;利用Arduino IDE研发了智能地磁数据采集平台,该平台搭载多种传感器,如HMC5983磁传感器和惯性导航传感器等,采集一定密度的室内地磁数据,利用克里金法对该地磁数据进行差值处理,生成2 cm间隔大小的栅格地磁图,作为室内定位基准图保存在数据库中。
In recent years,as an indoor positioning benchmark,geomagnetism has become a hot research field.This paper deeply studied geomagnetic indoor positioning technology,analyzed the interference of the indoor magnetic materials and electronic equipment to the magnetic field by a large number of experiments,and explored the characteristics of indoor magnetic field to prove the feasibility of magnetic field information as a basis for positioning; developed a data acquisition platform for intelligent geomagnetism using Arduino IDE.The platform is equipped with a variety of sensors,such as the HMC5983 magnetic sensor,inertial navigation sensors and so on.We can use it to collect the geomagnetic data of a certain density,and use the Kriging method to process the difference of geomagnetic data.The final result is the generation of 2 cm interval of the size of the grid geomagnetic map to become the indoor positioning reference map stored in the database.
出处
《测绘通报》
CSCD
北大核心
2017年第2期54-59,共6页
Bulletin of Surveying and Mapping
基金
2011年度校设科研基金(Z11063)
北京市教委2013年度科技发展计划(KM201310016005)
现代城市测绘国家测绘地理信息局重点实验室开放基金(20131201NZ)
关键词
磁场
室内定位
数据采集平台
克里金法
地磁基准图
magnetic field
indoor positioning
data acquisition
Kriging method
geomagnetic reference map
