基于成像通信的高精度可见光室内定位方法

High Precision Visible Light Indoor Positioning Based on Image Communication

提出了一种基于可见光发光二极管(LED)与摄像头成像通信的室内精确定位方法,旨在实现高精度、低成本、应用范围广泛、不易受干扰的室内定位。该方法利用摄像头接收加载在LED光上的身份识别信息(ID)获得LED的绝对位置信息,进一步从摄像头拍摄的图像中获取摄像头与LED的相对位置信息,结合接收端上的姿态传感器(电子罗盘)数据,便可计算得到摄像头的精确位置,实现定位功能。采用该方法进行了高精度室内定位实验测试,测试结果表明,该方法的定位精度可以达到厘米量级,且可以仅通过软件就将接收端布设在目前大多数智能终端上。

A high-precision indoor positioning method based on LED and image communication is proposed, which can achieve high-precision and small-disturbance indoor positioning with low cost and wide applications. The camera is used to receive the identity information added on the LED light for the absolute position of the LED. And then, the absolute position of the camera can be calculated combined with data of the attitude sensor on the receiver. Results of the test experiment based on the method show that the positioning accuracy can be achieved within centimeter scale, and the receiver can be placed on most intelligent terminals just by software.