基于红外同步的室内超声定位系统的设计  

Design of indoor ultrasonic positioning system based on infrared synchronization

作　　者：张强[1] 高颂[1] 

机构地区：[1]南京师范大学物理科学与技术学院,南京210023

出　　处：《国外电子测量技术》2017年第10期86-91,共6页Foreign Electronic Measurement Technology

摘　　要：提出了一种室内定位方案,利用红外作为发射超声信号的同步计时信号、FPGA内部多路计数模块同步对超声计数,并将采样得到的多路数据通过SPI总线分别上传至主控芯片STM32,并对数据进一步处理,最后由定位算法得到目标点的位置。主要实现的功能是FPGA多路信号采集、FPGA与SPI通信的设计以及定位算法的设计,精度可以达到cm级,在实际应用中具有较高的参考价值。In this paper ,an indoor positioning scheme is proposed ：using infrared as the synchron-ization timing signal of the ultrasonic signal ,the internal multi-channel counting module of the FPGA synchronizes the ultrasonic count and up-loads the sampled data to the master chip STM 32 through the SPI bus .The data is further processed ,and finally the po-sition of the target point is obtained by the positioning algorithm .The main function are FPGA multi-channel signal ac-quisition ,FPGA and SPI communication design and positioning algorithm design ,w hich has a high reference value in practical application .

关 键 词：红外信号 超声计数 定位算法 

分 类 号：TH711[机械工程—测试计量技术及仪器]