基于白光LED光源的地下停车场语音服务系统  

Voice service system of underground parking based on white LED light source

作　　者：汪广业 高英明[1] 王金鹏[1] 陈艾琳[1] 李萍[1] 邹念育[1] WANG ~ Guangye GAO Yingming WANG Jinpeng CHEN Ailin LI Ping ZOU Nianyu(Research Institute of Photonics, Dalian Polytechnic University, Dalian 116034, China)

机构地区：[1]大连工业大学光子学研究所,辽宁大连116034

出　　处：《大连工业大学学报》2016年第5期378-382,共5页Journal of Dalian Polytechnic University

基　　金：辽宁省教育科学"十三五"规划立项课题(JG16DB037);大连市科技计划项目(2015A11GX017;2014A11GX052;2014A11GX050)

摘　　要：针对地下停车场易造成车辆违停、摩擦、车位浪费等问题,给出了一种基于白光LED可见光通信技术的语音服务系统方案。根据光源特性设计了驱动电路和前置放大电路,并以51单片机控制器和ADAU1361音频编解码器为核心部件,组建了基于白光LED光源的语音通信实验系统。将地下停车场整体模型划分为多个空间单元,在空间单元内分别对照度均匀度和光功率分布进行了仿真测试,结果达到了照明和通信的基本要求。结果表明,使用功率为3 W的白光LED光源,有效通信距离可达3.4m,终端利用音频播放器可将语音信息清晰还原,信号传输波形无失真,实现了空间语音信号的单向通信,验证了系统方案的可行性。A voice service system based on visible light communication（VLC）was proposed to resolve illegal parking,scratch and parking space waste in underground parking.Light source driver and amplifier were designed according to its characteristics,and VLC system was constructed with 51micro-controller and ADAU1361 audio decoder.The whole model of the underground parking lot was divided into a number of spatial units,where the simulation tests of illuminance uniformity and optical power were carried out.The results showed that effective communication distance could reach to3.4m when power consumption was 3W,indicating that voice was restored clearly without distortion and one-way voice communication based on VLC was realized and feasibility.

关 键 词：地下停车场 语音服务 可见光通信 白光LED 

分 类 号：TN929.1[电子电信—通信与信息系统]