摘要
结合低压电力线信道理论分析模型,文章提出了固定通信距离下的最差参数逼近测试方法,对实际电力线配电网访问域信道在低速率信号传输时的特性进行了实证研究。提出了数据包错误率、时延和通信裕度等评价指标并进行了现场测试。实测数据说明了采用确认方式、施加合适的传输电平可实现低速率数据的可靠传输,并且具有较大的电力线信道通信裕度。另外,测试工作还验证了同一信号在电力线信道的两个方向上传输时的表现是不同的。
Combining with the low voltage power line channel theoretical analysis model, a test method under fixed communication distance was proposed based on worst parameter approximation,and empirical study was conducted for the characteristics of actual power line power distribution network accessibility domain channel during low- bitrate signal transmission. Parameters were selected and utilized in field tests,such as packets error rate,delay and communication margin areas etc. The results show that,low rates and reliable transmission of data can be realized,greater power line communication channel margin can be obtained,with appropriate method and level of transmission. In addition,the tests also verified that,performance of the same signal was different during the transmission in two direction of power line channel.
出处
《煤炭工程》
北大核心
2014年第11期140-143,共4页
Coal Engineering
基金
北京市2013年度科技计划面上项目"基于LONWORKS技术的矿井环境监测系统研制"(KM201310853005)
北京工业职业技术学院2012年科研课题"一种智能家居家电远程控制方法研究及实践"(BGZYKY2012102)
关键词
传输特性
低压电网
LON
Talk协议
transmission characteristics
low-voltage power network
Lon Talk Protocol
