基于射频信号强度与超声波的室内目标定位
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摘要
室内空间越来越庞大、越来越复杂,对于停车场、商场、机场等场所的定位和导引的需求日趋强烈。同时,智能制造、机器人、无人医疗护理等领域也需要计算机能在室内识别特定目标的位置。因此,室内定位是这些技术的关键。以下内容基于射频信号强度与超声波原理,提出了一套较为完整的室内定位方法,并设计构建了实验系统。将定位目标分别处于静止、移动状态下进行了定位实验,获得了实验结果。实验结果表明,基于射频信号强度与超声波测距的室内目标定位方法是可行的,具有较高的应用价值。
Indoor space is becoming more and more large and complex, and the demand for location and guidance of parking lots, shopping malls, airports and other places is increasingly strong. At the same time, intelligent manufacturing, robotics, unmanned medical care and other fields also require computers to identify specific targets in the room. Therefore, indoor positioning is the key to these technologies. Based on the principle of RF signal intensity and ultrasonic wave, a relatively complete indoor positioning method is proposed, and an experimental system is designed and constructed. Localization experiments were carried out under stationary and moving targets respectively, and the experimental results were obtained. The experimental results show that the indoor target location method based on RF signal intensity and ultrasonic ranging is feasible and of high application value.
Indoor space is becoming more and more large and complex, and the demand for location and guidance of parking lots, shopping malls, airports and other places is increasingly strong. At the same time, intelligent manufacturing, robotics, unmanned medical care and other fields also require computers to identify specific targets in the room. Therefore, indoor positioning is the key to these technologies. Based on the principle of RF signal intensity and ultrasonic wave, a relatively complete indoor positioning method is proposed, and an experimental system is designed and constructed. Localization experiments were carried out under stationary and moving targets respectively, and the experimental results were obtained. The experimental results show that the indoor target location method based on RF signal intensity and ultrasonic ranging is feasible and of high application value.
引文
[1]赵海,张宽,朱剑,李大舟.基于TDOA的超声波测距误差分析与改进[J].东北大学学报:自然科学版.2011.32(6):803-805
[2]宁静.采用红外织网的室内定位技术[J].激光与红外,2011,41(7):774-778.
[3]杨狄,唐小妹,李泊渝,等.基于超宽带的室内定位技术研究综述[J].全球定位系统,2015,40(5):34-40.
[4]邓辉舫,马启平,周尚伟.利用无线射频识别技术(RFID)技术进行室内定位[J].计算机应用,2008,28(7):1858-1860.
[5]林盈洪,杨意,郑奋立,等.基于射频及超声信号的室内二维定位系统设计[J].科技资讯,2014(27):2-4.
[6]Shi A, Duan J, Sun X, et al. Impact of multipath effects on theoretical accuracy of TOA-based indoor VLC positioning system[J]. Photonics Research, 2015, 3(6):296.
[7]徐盛良,鲁照权,周永燕,王肖玥峰,丁浩峰.基于超声波测距的室内定位系统[J].机械设计与制造工程,2017,46(11):112-116.
[2]宁静.采用红外织网的室内定位技术[J].激光与红外,2011,41(7):774-778.
[3]杨狄,唐小妹,李泊渝,等.基于超宽带的室内定位技术研究综述[J].全球定位系统,2015,40(5):34-40.
[4]邓辉舫,马启平,周尚伟.利用无线射频识别技术(RFID)技术进行室内定位[J].计算机应用,2008,28(7):1858-1860.
[5]林盈洪,杨意,郑奋立,等.基于射频及超声信号的室内二维定位系统设计[J].科技资讯,2014(27):2-4.
[6]Shi A, Duan J, Sun X, et al. Impact of multipath effects on theoretical accuracy of TOA-based indoor VLC positioning system[J]. Photonics Research, 2015, 3(6):296.
[7]徐盛良,鲁照权,周永燕,王肖玥峰,丁浩峰.基于超声波测距的室内定位系统[J].机械设计与制造工程,2017,46(11):112-116.