基于“双耳效应”和反射锥的超声波定位系统  

Ultrasound Positioning System Based on Binaural Effect and Reflecting Cone

作　　者：邵明启 郭嵘 郑明[3] SHAO Mingqi;GUO Rong;ZHENG Ming(School of Automation Science and Electrical Engineering,Beihang University,Beijing 100191,China;School of Instrumentation Science and Optoelectronic Engineering,Beihang University,Beijing 100191,China;School of Physics,Beihang University,Beijing 100191,China)

机构地区：[1]北京航空航天大学自动化科学与电气工程学院,北京100191 [2]北京航空航天大学仪器科学与光电工程学院,北京100191 [3]北京航空航天大学物理学院,北京100191

出　　处：《实验室研究与探索》2020年第10期93-96,共4页Research and Exploration In Laboratory

摘　　要：设计了一套基于反射锥装置的模拟人耳的超声波室内定位系统。在二维工作方式中,该系统利用“双耳效应”原理进行工作,通过模拟人耳转动寻找声源,计算出极角和极径,得到二维坐标;在三维工作方式中,通过接收装置不断转动模拟尽可能多的基站,进而利用Chan算法解得三维坐标。该系统仅使用3个超声波接收装置即可完成二维、三维的定位,与其他超声波定位系统相比,占用体积小。实验测试表明,该系统定位精度高,所需基站数目少,能满足大多数室内定位场景的需求,在室内定位领域具有较高参考价值。In order to avoid the shortcoming,ultrasonic indoor positioning system based on reflecting cone device is designed.In the case of 2-dimension,the system uses binaural effect to search sound source by simulating the rotation of human ears,and obtains coordinates by measuring polar angle and radius.In 3-dimension,through rotating receiving device continuously,the system simulates as many base stations as possible,and then uses Chan algorithm to get three-dimensional coordinates.The system uses only three ultrasonic receivers to complete 2-and 3-dimensional positioning,smaller than other ultrasonic positioning systems.Actual experiments show that the system has high positioning accuracy and needs fewer base stations,which can meet the requirements of most indoor positioning scenarios and has high reference value for indoor positioning field.

关 键 词：超声波定位 双耳效应 反射锥 CHAN算法 

分 类 号：TB559[理学—物理]