摘要
基于超声波测距原理,提出了一种高精度室内定位方法,给出了实验系统结构,设计了系统硬件与软件,完成了系统定位实验,分析了产生误差的原因与解决方法。在2 m×2 m定位区域内,布置4个坐标已知的带有射频通信和超声波测距功能的测距节点构成定位基点。根据定位区域内移动节点与定位基点的超声波测距结果,得到移动节点与各定位基点的距离,再将这些距离通过射频通信上传到上位机进行处理、计算,得到移动节点的坐标。实验结果表明:测量定位误差不超过3 cm,动态响应良好。
Based on the principle of ultrasonic ranging,a high-precision indoor positioning method is proposed.The structure of the experimental system is given.The system hardware and software are designed.The system positioning experiment is completed.The causes and solutions of the error are analyzed.In the 2 m×2 m positioning area,four coordinates known ranging nodes with radio frequency communication and ultrasonic ranging nodes are arranged to form a positioning base point.According to the ultrasonic ranging result of the mobile node and the positioning base point in the positioning area,the distance between the mobile node and each positioning base point is obtained,and these distances are then uploaded to the upper computer through radio frequency communication to be processed and calculated,the coordinates of the mobile node are obtained.Experimental results show that the measurement error does not exceed 3 cm and the dynamic response is quite good.
作者
谢地
鲁照权
丁浩峰
尤海龙
陈龙
苏明明
XIE Di;LU Zhaoquan;DING Haofeng;YOU Hailong;CHEN Long;SU Mingming(School of Electrical Engineering and Automation ,Hefei University of Technology, Hefei 230009 ,China)
出处
《传感器与微系统》
CSCD
2019年第10期98-101,共4页
Transducer and Microsystem Technologies
基金
国家级大学生创新项目(201710359008)
合肥工业大学企业委托项目(W2016JSKF0467,W2016JSKF0468)
关键词
射频通信
室内定位
超声波测距
radio frequency communication
indoor positioning
ultrasonic ranging
