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用于乘客货车中UHD视听内容传输的VLC系统的光电子接口:HW设计设计
Carlos Iván Del Valle Morales1, Juan Sebastián Betancourt Perlaza1, Juan Carlos Torres Zafra1
1The Photonic Displays and Applications Group (GDAF), Electronic Technology Department, University Carlos III of Madrid, Calle Butarque 15, Leganés, 28911 Madrid, Spain.
Sensors (Basel, Switzerland)
|September 14, 2024
概括
本研究介绍了可见光通信 (VLC) 系统的硬件设计,可以在车辆中实现超高清视频流. 该系统利用现有的灯具进行数据传输,并以太阳能为可持续性提供动力.
科学领域:
- 光电子和通信系统 光电子和通信系统
- 无线网络的硬件设计
- 可见光通信 (VLC) 技术可见光通信 (VLC) 技术
背景情况:
- 客车中的现有基础设施,如阅读灯,可以重新用于数据传输.
- 可见光通信 (VLC) 提供了一个潜在的解决方案,用于在狭小空间的高速数据传输.
- 在交互式通信系统中,上链和下链通道的整合至关重要.
研究的目的:
- 为VLC系统设计和实施光电子接口的硬件 (HW).
- 通过现有照明,在客车中实现超高清 (UHD) 视频流.
- 开发用于移动通信应用的自动供电系统.
主要方法:
- 设计并实施了一种Light Fidelity (LiFi) 路由器用于下链 (可见光) 和一个USB dongle用于上链 (红外光).
- 使用了针对特定光谱优化的发光二极管 (LED) 和接收器.
- 集成太阳能电池板和电源库,为用户端组件创建一个自给自足的电源.
主要成果:
- 实现了11.66MHz的下链带宽和12.27MHz的上链带宽.
- 通过单输入多输出 (SIMO) 系统证明了成功的UHD视频流.
- 达到了15.2 Mbps (OOK) 和11.25 Mbps (QPSK与OFDM) 的比特速率,其低位错误率 (BER) 为3.3259 × 10−5.
- 在110厘米的距离上保持了10.74dB的最小信号噪声比 (SNRmin).
- 太阳能系统在充电13.4小时后提供了22.3小时的电池寿命.
结论:
- 光电子接口的定制硬件设计使高效的VLC系统能够用于车载通信.
- 该系统能够提供高质量的视频流和交互式数据传输.
- 自动供电,太阳能集成的设计提高了移动VLC解决方案的实用性和可持续性.
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