照明和可见光通信系统的亮度控制方法

2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07) Pub Date : 2007-03-04 DOI:10.1109/ICWMC.2007.26

H. Sugiyama, S. Haruyama, M. Nakagawa

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引用次数: 88

摘要

我们开发了照明和可见光通信系统的两种亮度控制方法。一种方法是脉宽调制(PWM)，另一种方法是改变调制深度。利用这些方法，我们可以同时实现调光即亮度控制和无线通信。我们讨论了PWM频率、LED亮度和通信性能之间的关系。结果表明，采用PWM控制可以实现亮度从0%到87.5%的控制，且当PWM频率足够高时，数据传输是可行的。当改变调制深度时，亮度可在0% ~ 100%范围内控制，通信性能优于PWM。

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Brightness Control Methods for Illumination and Visible-Light Communication Systems

We have developed two brightness control methods for illumination and visible-light communication systems. One method is pulse width modulation (PWM), the other is changing modulation depth. Using these proposed methods, we can achieve both dimmer i.e. brightness control and wireless communication at the same time. We discussed the relationship between PWM frequency, LED brightness, and communication performance. The results show that we can control brightness from 0% to 87.5% when we use PWM and data transmission possible when PWM frequency is high enough. Brightness can be controlled from 0% to 100% and communication performance is better than that of PWM when we change modulation depth.

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2007 Third International Conference on Wireless and Mobile Communications (ICWMC'07)

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