LiPro: light-based indoor positioning with rotating handheld devices
LiPro: light-based indoor positioning with rotating handheld devices
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DOI：
10.1007/s11276-016-1312-1
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发表时间：
2016-06
影响因子：
3
通讯作者：
Bo Xie;Shimin Gong;Guang Tan
中科院分区：
文献类型：
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作者：
Bo Xie;Shimin Gong;Guang Tan
针对智能手机等手持设备，提出了一种室内定位方法LiPro。基于经验光强模型，我们提出了一种旋转多面定位方法，使接收者能够在条件恶劣的情况下定位自己，否则传统的多边定位是不可能的-例如当接收者可见的LED灯少于三个时。在该方法中，用户以类似于指南针的校准过程的方式，手动执行接收器绕三个正交轴的三次旋转。在这个过程中，接收器不断地收集RSS和磁场强度，然后用它们来求解接收器的位置。LiPro可以与单一光源一起工作，使其比以前的方法更具成本效益，要求更低。我们的实验表明，LiPro在线性部署LED的走廊上的中位误差为0.59m，在办公室中的中位误差为0.45m。此外，LiPro被证明对环境光源的干扰具有很强的抗干扰性。
In this paper, an indoor positioning method, namely LiPro, is proposed for handheld devices such as smartphones. Based on an empirical light intensity model, we propose a rotating multi-face positioning method that enables a receiver to locate itself in ill-conditioned scenarios which would otherwise make the traditional multilateration impossible—for example when less than three LED lamps are visible to the receiver. In this method, the user manually performs three rotations of the receiver around three orthogonal axes, in a manner similar to the calibration process of a compass. During this process, the receiver continuously collects RSS and magnetic field strength, which are then used to solve for the receiver’s position. LiPro can work with a single source of light, making it a more cost-effective and less demanding than previous approaches. Our experiments show that LiPro achieves a median error of 0.59 m in a corridor with linearly deployed LEDs, and 0.45 m in an office. Moreover, LiPro is shown to be robust against interference from ambient light sources.