摘要
以STM32F103为终端设备的核心芯片,通过USART1串口连接惯性测量单元采集行人步行时的加速度和角速度数据,并按照一定格式要求封装数据,通过USART2串口连接至Wi-Fi模块上传数据包至MQTT服务器;基于SSM框架开发定位系统和获取服务器数据的MQTT客户端,并与行人导航算法交互处理数据,输出定位结果的数据包;基于JavaScript和HTML5开发脚本和网页获取数据包并展示导航定位结果;研究并实现PDR算法.该系统上位机、下位机和行人导航算法的研究与开发以及实际运行测试结果表明该系统成本低、应用范围广、研发周期短,能够有效地解决行人导航定位的问题.
Aiming at the problem of indoor and outdoor pedestrian navigation and positioning,a PDR positioning system based on shoe-borne inertial navigation was designed.This design takes STM32F103 as the core chip of the terminal device,collects the acceleration and angular velocity data of pedestrians while walking through the USART1 serial port connected to the inertial measurement unit,encapsulates the data according to certain format requirements,and uploads the data packet to the MQTT server through the USART2 serial port connected to the Wi-Fi module.Based on the SSM framework,the positioning system and the MQTT client were developed to obtain the server data.The data were processed interactively with the pedestrian navigation algorithm,and the data packets of the positioning results were output.Scripts and web pages were developed based on JavaScript and HTML5 to obtain data packets and display navigation and positioning results;PDR algorithm was researched and implemented.The research and development of the system’s upper computer,lower computer and pedestrian navigation algorithm as well as the actual running test results show that the system has the advantages of low cost,wide application range and short development cycle,which can effectively solve the problem of pedestrian navigation and positioning.
作者
薛中浩
崔丽珍
XUE Zhonghao;CUI Lizhen(Information Engineering School,Inner Mongolia University of Science and Technology,Baotou 014010,China)
出处
《内蒙古科技大学学报》
CAS
2022年第1期59-65,共7页
Journal of Inner Mongolia University of Science and Technology
基金
内蒙古自治区自然科学基金资助项目(2020MS06027)
内蒙古自治区科技计划项目基金资助项目(2019GG328).
