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相关概念视频

Confocal Fluorescence Microscopy01:16

Confocal Fluorescence Microscopy

Confocal microscopy is an advanced microscopic technique. The prime advantage of the confocal microscope over other microscopy techniques is its ability to block the out-of-focus light from the illuminated samples using pinholes. It is widely used with fluorescence optics to obtain high-resolution, sharp contrast images. Unlike optical microscopes, confocal microscopes use a focused beam of light laser to scan the entire sample surface at different z-planes. These microscopes are, therefore,...

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相关实验视频

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High-resolution Fiber-optic Microendoscopy for in situ Cellular Imaging
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设计和实施用于室内应用的混合光学摄像机通信系统.

Huy Nguyen1, Nam Tuan Le2, Duy Tuan Anh Le1

  • 1Department of Electronics Engineering, Kookmin University, Seoul 02707, Republic of Korea.

Sensors (Basel, Switzerland)
|January 11, 2024
PubMed
概括

这项研究引入了一种用于光学摄像机通信 (OCC) 的新型混合调制,使用一个LED传输两个摄像机捕获的两个数据流. 这种具有成本效益的方法可以提高室内无线通信的性能.

关键词:
物联网应用物联网应用物联网应用.混合OCC波形是指一个混合OCC波形.光学摄像机通信 (OCC) 是指光学摄像机通信.

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科学领域:

  • 有光无线通信的无线通信.
  • 可见光通信可见光通信

背景情况:

  • 无线射频 (RF) 技术面临着一些局限性.
  • 光学相机通信 (OCC) 提供了一个具有独特优势的替代方案.

研究的目的:

  • 为光学摄像头通信 (OCC) 开发一个具有成本效益的混合调制方案.
  • 从单个发光二极管 (LED) 发射器实现双流数据传输.
  • 为了确保与随时可用的相机设备的兼容性.

主要方法:

  • 混合调制集成了高频和低频信号.
  • 高频信号使用滚动快门直角频率分割复杂化.
  • 低频信号在时间域中使用M-ary频率转移键.
  • 数据通过两个摄像头接收:一个高分辨率的智能摄像头和一个低分辨率的智能手机摄像头.

主要成果:

  • 从单个LED成功传输了两个数据流,降低了设备成本.
  • 在10米的距离上实现了高性能通信.
  • 与标准智能手机和USB摄像头的兼容性得到证明.

结论:

  • 拟议的混合调制方案是室内OCC的可行和具有成本效益的解决方案.
  • 这项技术为基于射频的通信系统提供了一个有希望的替代方案.
  • 通过对各种应用的参数控制,系统的性能是可适应的.