摘要
本文提出了一种基于蓝牙基站的室内定位解决方案。该技术方案中,蓝牙基站由低功耗蓝牙模块组成,在需要定位的室内空间均匀部署一定数量的蓝牙基站,每个蓝牙基站可以创建一个信号区域,并周期性地向外界广播自己独有的与位置信息对应的mac(media access control)地址和RSSI(Received Signal Strength Indication)值。当携带有蓝牙终端设备的用户进入该信号区域,就会接收蓝牙基站广播的RSSI值和mac地址,然后通过基于泰勒级数线性化的最小二乘迭代算法进行精确定位。实验结果表明,该系统定位精度在2.5 m以内,满足绝大多数的室内定位需求。
This paper presents an indoor location solution based on Bluetooth base station.In this scheme,Bluetooth base station is composed of low-power Bluetooth module.A certain number of Bluetooth base stations are evenly deployed in the indoor space where they need to be located.Each Bluetooth base station can create a signal area and periodically broadcast its unique MAC address and RSSI value corresponding to location information to the outside world.When a user with a Bluetooth terminal enters the signal area,he receives the RSSI value and MAC address of the Bluetooth base station broadcasting,and then locates it accurately by the least square iteration algorithm based on Taylor series linearization.The experimental results show that the positioning accuracy of the system is less than 2.5 m,which meets most indoor positioning requirements.
作者
赵帅豪
王坚
ZHAO Shuaihao;WANG Jian(School of Geomatics and Urban Spatial Informatics,Beijing University of Civil Engineering and Architecture,Beijing 102616,China)
出处
《北京测绘》
2020年第2期238-242,共5页
Beijing Surveying and Mapping
基金
国家自然科学基金(41874029)
