通过战略性LED布局最大限度地减少定位错误:基于ANN的VLP中的圆形布局优越性
Applied optics
|September 22, 2025
概括
这项研究发现,发光二极管 (LED) 的圆形排列在可见光定位系统中提供了最高的准确性. 这种配置尽量减少室内导航应用程序的定位错误.
科学领域:
- 室内定位系统 室内定位系统
- 在导航中的人工智能.
- 有光无线通信的无线通信.
背景情况:
- 可见光定位 (VLP) 系统为室内定位提供了一个有希望的替代方案.
- 发光二极管 (LED) 的几何布局显著影响VLP系统的性能.
- 优化LED配置对于实现高定位精度至关重要.
研究的目的:
- 评估不同LED配置对基于指纹的人工神经网络 (ANN) 可见光定位系统准确度的影响.
- 为了确定LED的最佳几何布局,在定义的室内环境中最大限度地提高定位准确性.
主要方法:
- 为VLP开发基于指纹的ANN模型.
- 在5米×5米×3米的室内空间内模拟四种不同的LED配置 (方形,矩形,三角形,圆形).
- 使用沿着圆形轨迹移动的接收器分析定位精度,评估错误分布和大小.
主要成果:
- 圆形LED配置实现了最低的平均定位误差 (9.87厘米).
- 方形和矩形配置显示中等误差 (分别为15.29厘米和12.45厘米).
- 三角形配置呈现出最高的平均定位误差 (52.50厘米).
结论:
- 圆形LED排列在可见光定位精度方面明显优于其他配置.
- 一致的信号强度梯度和最大化的视线连接有助于圆形配置的卓越性能.
- 几何排列是优化VLP系统准确性的关键因素,独立于LED数量或信号处理技术.
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