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将电力线载波通信网络应用于智能电网中,有效延长通信距离是亟待突破的技术难题。为此,提出一种基于IPv6的低压电力线载波树型路由机制,子网节点通过支持IPv6地址自动分配的分布式地址分配策略来构建载波网络层次转发树模型。中继节点以MAC头中的目的地址进行下一跳路由转发,并结合IPv6适配层中的Mesh头实现多跳路由寻址。在层次转发树中,中继节点只需存储与其子节点数相当的信息项即可实现子网内路由信息的快速生成。搭建了电力载波通信配电网树型拓扑结构测试平台,测试结果表明,该树型路由控制机制能够以较小的时延进行IPv6数据包的多跳转发,并有效延长了电力线载波通信距离。
The power line carrier communication network used in smart grid, effectively extend the communication distance is a technical problem to be solved. Therefore, a IPv6-based low-voltage power line carrier tree routing mechanism is proposed. Subnet nodes construct a carrier-layer hierarchical forwarding tree model by using a distributed address allocation strategy that supports automatic allocation of IPv6 addresses. The relay node forwards the next hop with the destination address in the MAC header and implements multi-hop routing addressing according to the Mesh header in the IPv6 adaptation layer. In the hierarchical forwarding tree, the relay nodes only need to store the information items whose subnodes are equal, so as to realize the rapid generation of the routing information in the subnet. The tree topology test platform of powerline communication distribution network is set up. The test results show that the tree routing control mechanism can transmit multi-hop IPv6 packets with less delay and effectively extend the communication distance of power line carrier .