室内双工短距离实时VLC系统设计及实现
发布时间：2019-03-03 09:51
【摘要】：由于医院、飞机等特殊场合对电磁波比较敏感,传统的无线电通信方式不适合此类场所,本文根据VLC原理,对大气信道进行建模分析的基础上,设计开发了一套室内点对点VLC通信平台。系统采用IM/DD调制方式,通信链接为直射式LOS链接,通过合理设计发射端光源LED的调制驱动电路、接收端探测电路、放大器电路,选用0.5W功率的LED灯珠,在室内白天强背景光干扰及室内灯光干扰状态下,实现了室内0.3m的无失真稳定的信息传输,验证了基于白光LED的可见光通信系统的可实现性;同时采用本系统对室内环境参量进行了实时监测传输,系统传输性能稳定、可靠,验证了基于白光LED可见光通信系统在室内的可实用性。
[Abstract]:Because the hospital, aircraft and other special occasions are sensitive to electromagnetic wave, the traditional radio communication mode is not suitable for this kind of place. Based on the VLC principle, the atmospheric channel is modeled and analyzed in this paper. A set of indoor point-to-point VLC communication platform is designed and developed. The system adopts the IM/DD modulation mode, the communication link is the direct LOS link, through the reasonable design of the transmitter light source LED modulation drive circuit, the receiver detection circuit, the amplifier circuit, selects 0.5W power LED lamp bead, Under the condition of strong background light interference and indoor light interference, the information transmission without distortion and stability of 0.3m is realized, and the realization of visible light communication system based on white light LED is verified. At the same time, the real-time monitoring and transmission of indoor environmental parameters is carried out by this system. The transmission performance of the system is stable and reliable, and the practicability of the visible light communication system based on white light LED in the room is verified.
【作者单位】： 西安工业大学电子信息工程学院;
【基金】：国家自然科学基金项目(61671362&6127136) 陕西省科技厅自然基金项目(2012JQ8008) 陕西省教育厅科技专项(2012JK0545) 西安市科技计划项目(CXY1341(3))
【分类号】：TN929.1
，
本文编号：2433590
[Abstract]:Because the hospital, aircraft and other special occasions are sensitive to electromagnetic wave, the traditional radio communication mode is not suitable for this kind of place. Based on the VLC principle, the atmospheric channel is modeled and analyzed in this paper. A set of indoor point-to-point VLC communication platform is designed and developed. The system adopts the IM/DD modulation mode, the communication link is the direct LOS link, through the reasonable design of the transmitter light source LED modulation drive circuit, the receiver detection circuit, the amplifier circuit, selects 0.5W power LED lamp bead, Under the condition of strong background light interference and indoor light interference, the information transmission without distortion and stability of 0.3m is realized, and the realization of visible light communication system based on white light LED is verified. At the same time, the real-time monitoring and transmission of indoor environmental parameters is carried out by this system. The transmission performance of the system is stable and reliable, and the practicability of the visible light communication system based on white light LED in the room is verified.
【作者单位】： 西安工业大学电子信息工程学院;
【基金】：国家自然科学基金项目(61671362&6127136) 陕西省科技厅自然基金项目(2012JQ8008) 陕西省教育厅科技专项(2012JK0545) 西安市科技计划项目(CXY1341(3))
【分类号】：TN929.1
，
本文编号：2433590
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