| 基于ZibBee控制的高动态范围LED模拟调光装置设计 |
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| 引用本文： | 蒋晓波,韩凯,沈海平,刘木清.基于ZibBee控制的高动态范围LED模拟调光装置设计[J].照明工程学报,2010,21(6):48-51. |
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| 作者姓名： | 蒋晓波 韩凯 沈海平 刘木清 |
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| 作者单位： | 复旦大学光源与照明工程系,上海200433 |
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| 摘 要： | 针对LED应用于机器视觉辨认等特殊场合,本文提出了一种基于ZibBee控制的高动态范围LED模拟调光装置,提供了一种异于高频PWM的调光方法。设计通过对原有线性电源的改进,增加了可变降压电路,提高了其工作效率,并实现了500∶1的高动态范围模拟调光。电路中同时使用了CC2430芯片实现电流控制和无线遥控的功能,配合着ZigBee无线网关便可实现远程调光控制。
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| 关 键 词： | ZigBee 高动态范围 模拟调光 LED 机器视觉 无线控制 |
Design of High Ratio Analog Dimming Device Based on ZigBee Technology |
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| Jiang Xiaobo,Han Kai,Shen Haiping,Liu Muqing.Design of High Ratio Analog Dimming Device Based on ZigBee Technology[J].China Illuminating Engineering Journal,2010,21(6):48-51. |
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| Authors: | Jiang Xiaobo Han Kai Shen Haiping Liu Muqing |
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| Affiliation: | Jiang Xiaobo Han Kai Shen Haiping Liu Muqing ( Institute for Electric Light Source, Fudan university, Shanghai 200433 ) |
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| Abstract: | This article focuses on LED＇s application in the machine vision area, presents a high analog dimming ratio solution based on ZigBee control, provides a dimming solution different from the high frequency PWM method. By means of adding a dynamic buck circuit, the solution improves the efficiency of former linear LED driver, and realizes a 500： 1 ratio analog dimming. Meanwhile. The solution applies CC2430, a ZigBee chip, to adjust the output current and implement wireless control. With the cooperation of the ZigBee Internet gateway, remote monitoring and control were realized. |
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| Keywords: | ZigBee High Ratio analog dimming LED machine vision wireless control |
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