摘要
针对国内目前低压电力线抄表系统中采用的窄带载波集中器及人工中继路由方式,提出了基于电力线宽带载波的集中器设计方案及自动中继路由算法。宽带载波集中器硬件是以S3C2440为核心,采用电力线宽带载波技术与采集器通信、通用分组无线服务(GPRS)技术与管理中心通信;软件是基于嵌入式Linux操作系统设计,采用多路I/O复用技术以及嵌入式数据库技术实现对用户电量的接收、转发及存储。同时依据低压电力线的特点,采用具有中继约束条件的自动中继路由算法实现用户电量的抄收。运行经验和实践表明:宽带载波集中器具有传输速率快、可靠性高、实时性强和运行费用低等优点;具有中继约束条件的自动中继路由算法能有效缩短自动中继的时间,提高抄表效率。
The design scheme of concentrator based on electric line broadband carrier and its automatic relay routing algorithm are proposed. The concentrator takes S3C2440 chip as its core,adopting the electric line broadband cartier technology to communicate with the collector and the GPRS technology to communicate with the management center. Its software is based on the embedded Linux operating system,adopting the multi-channel I/O multiplexing technology and the embedded database technology to realize the receiving,transmitting and storage of user data. For low-voltage electric line,the automatic relay routing algorithm with relay constrains is employed for meter reading. The operating experience indicates that,the concentrator based on electric line broadband carrier has fast transmission speed,high reliability; excellent real-time performance and low operating cost, and the automatic relay routing algorithm with relay constrains improves the meter reading efficiency.
出处
《电力自动化设备》
EI
CSCD
北大核心
2011年第9期115-120,共6页
Electric Power Automation Equipment
基金
北京航空航天大学青年教师创新基金资助项目(911901340)~~
