一种可见光通信系统的信号处理方法及装置

By setting coded signals and signal processing thresholds in visible light communication systems, the bit error problem in signal overlap areas at the receiver is solved, ensuring the accuracy and reliability of signal decoding.

CN120934627BActive Publication Date: 2026-07-17SHENZHEN LAIFA LIGHTING COMM TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENZHEN LAIFA LIGHTING COMM TECH CO LTD
Filing Date
2024-05-09
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In visible light communication systems, the receiver is prone to bit errors in areas where signals overlap, especially when there is overlap in the signal coverage areas of adjacent lighting devices, where the superposition of light signals leads to decoding errors at the receiver.

Method used

By setting the encoding signal, the maximum superimposed light intensity of the light signals from adjacent lighting devices in the overlapping part is less than the maximum preset light intensity. Signal processing thresholds are set at the transmitter and receiver to ensure that the signal decoding at the receiver is not affected by the superimposed signal.

Benefits of technology

This effectively avoids bit errors caused by optical signal superposition exceeding the level threshold, thus improving the accuracy and reliability of signal processing.

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Abstract

本申请提供了一种可见光通信系统的信号处理方法及装置。可见光通信系统包括服务器、发射机、照明设备和接收端;相邻照明设备的信号覆盖区域存在重叠部分;服务器用于将初始信号发送至发射机;发射机依据初始信号生成编码信号;编码信号对应照明设备的光信号与相邻照明设备的光信号在重叠部分内叠加后的最大叠加光强小于最大预设光强;发射机将编码信号发送至照明设备;照明设备用于依据编码信号生成光信号,并发射光信号;接收端用于接收光信号,并依据光信号生成解码信号。本申请可以避免由于驱动板时钟相差和光信号叠加超过电平门限造成的误码情况。
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