【摘要】 以往输电线路状态监测数据跨层传输方法,很少考虑传输过程中传输路径的拥塞现象,不能确保跨层传输输电线路状态监测数据的及时性和可靠性。为此,提出基于多协议标记的输电线路状态监测数据跨层传输方法。多协议标记交换网络模型由标签交换路由器和标签边缘路由器组成,通过CMA设备组网实现两个路由器间相互通信,通信过程中在智能电网输电线路中划分两个路由器后,通过输电线路状态监测数据传输方向构建标签交换路径,通过定义数据类型确定传输输电线路状态监测数据的优先级顺序,根据优先级顺序跨层传输输电线路状态监测数据,避免传输路径拥塞,实现负载均衡。经过实验检测发现,采用该方法后,输电线路两条链路上的数据流量几乎相同,数据流量大约为1.5 Mb/s,且传输精度最高可达到99.5%,即该方法能实现输电线路状态监测数据的负载平衡,且能保障数据传输的可靠性。更多还原

【Abstract】 As the traditional cross-layer transmission method of transmission line condition monitoring data can not ensure the timeliness and reliability of cross-layer transmission line condition monitoring data,a multi-protocol label based cross-layer transmission method of transmission line condition monitoring data is proposed. The multi-protocol label switched network model is composed of label switching router and label edge router to realize the communication between two routers by means of CMA equipment networking. In the process of communication,two routers are divided in a smart grid transmission line,and then the label switching path is constructed according to transmission direction of transmission line state monitoring data. The priority order of transmitting the transmission line condition monitoring data is determined by defining data types,and the across-layer transmission of the transmission line condition monitoring data is implemented according to the priority order to avoid transmission path congestion and achieve load balancing. The experimental results show that after adopting this method,the data flow on the two links of the transmission line is almost the same,and the data flow is approximately 1.5 Mb/s,and the transmission accuracy can reach 99.5%. That is,this method can realize load balancing of transmission line condition monitoring data and ensure the reliability of data transmission.更多还原