摘要
对多条街广告灯箱之间的通信电路进行了设计,分析了电力线载波技术和双音多频(DTMF)技术,详细论述了DTMF的工作方式及其通信电路的设计.
Communication circuit about multi-street advertisement lamp-boxes is discussed. It has analyzed to power line carrier technology and DTMF technology. And working way and communication circuit design of DTMF are illuminated in detail.
出处
《阜阳师范学院学报(自然科学版)》
2008年第4期65-67,共3页
Journal of Fuyang Normal University(Natural Science)
基金
吉林省信息产业讲师专项发展资金
关键词
电力线载波
DTMF
通信电路
power line carrier
DTMF
communication circuit