基于超声波辅助测距的可见光室内定位系统  

Visible light indoor positioning system based on ultrasonic aided ranging

作　　者：李成勇 王泽芳[2] 

机构地区：[1]重庆工程学院电子与物联网学院,重庆400056 [2]重庆青年职业技术学院信息工程系,重庆400712

出　　处：《光通信技术》2018年第1期53-55,共3页Optical Communication Technology

基　　金：重庆教委科学技术研究项目(604162762KJ201)资助

摘　　要：发信模块LED之间的互相干扰与收信模块的延时同步等问题严重影响了可见光室内定位系统的精准性,选用超声波传感器为感应器件,设计了一种可见光室内定位系统。该方法先通过光信号完成同步,超声波模块辅助测距,再利用已设定的光定位TDOA算法测出传感器的位置坐标。经过误差分析和多次调试,传感器能正确区分其所处区域和坐标,并将误差控制在要求范围内,性能良好。The mutual interference between LED transmitting module and receiving module delay synchro- nization problems seriously affect the visible light indoor positioning precision of the system, this paper se- lects the ultrasonic sensor for sensing device, designs a visible light indoor positioning method. The method uses the optical signal to complete the synchronization, ultrasonic module auxiliary ranging, and uses the con- figured light location TDOA algorithm to measure the position coordinates of the sensor. Atter error analysis and multiple debugging, the sensor can correctly distinguish the region and coordinates of its location, and control the error in the request scope, the performance is good.

关 键 词：室内定位 TDOA定位算法 三边定位法 

分 类 号：TN29[电子电信—物理电子学]