一种LED室内定位系统的设计  

Design of an LED indoor positioning system

作　　者：郭闯 孙帆 张莹[1] GUO Chuang;SUN Fan;ZHANG Ying(Electrical Engineering,Weinan Normal University,Weinan 714000,China)

机构地区：[1]渭南师范学院物理与电气工程学院,陕西渭南714000

出　　处：《电子设计工程》2020年第14期185-189,共5页Electronic Design Engineering

基　　金：渭南师范学院大学生创新创业训练计划项目(19XK059)。

摘　　要：本设计以STM32F4为控制核心,设计了一种基于LED可见光的室内定位系统。该系统由发射端和接收端两部分组成,发射端采用频分复用方法通过3个LED发射不同频率的光信号,接收端对信号进行滤波、选频、放大,再经AD转换后,采用3边定位算法确定接收端所处位置,最终将区域和坐标显示在LCD屏上。An indoor positioning system based on LED visible light is designed with STM32F4 as the control core.The system consists of transmitter and receiver,the transmitter uses frequency division multiplexing method to make three LEDs transmit optical signals of different frequencies.After the signal is filtered,selected and amplified by the receiver,and converted by AD,the location of the receiver is determined by trilateral location algorithm,and the region and coordinates will be displayed on the LCD screen.

关 键 词：LED定位 STM32 频分复用 带通滤波器 

分 类 号：TN012[电子电信—物理电子学]