Redundancy method of IPv6 router suitable for tree type wireless sensor network

Abstract

The invention discloses a redundancy method of an IPv6 router suitable for a tree type wireless sensor network, and belongs to the technical field of the wireless sensor network. Based on 6LoWPAN and the tree type routing technology of the wireless sensor network, an IPv6 neighbor discovery protocol is modified according to the 6LoWPAN series protocol standard. The router establishes a self redundancy router from a neighboring router by combining the characteristic of dense deployment of nodes of the industrial wireless sensor network, and when the router does not work, the redundancy router acts on behalf the router transparently to carry out data routing forwarding work. Meanwhile, when the router out of operation recovers a normal working state, the redundancy router automatically stops the proxy work. The redundancy method of the IPv6 router suitable for the tree type wireless sensor network can effectively solve the problem that descendant nodes can not communicate due to failure of the router in the tree type network, thereby realizing the IPv6 wireless sensor network routing technology simultaneously meeting the requirements for reliability, real time performance and small expenditure of industrial application, and improving the overall reliable communication capacity of the network.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and in particular relates to an IPv6 router redundancy method suitable for tree-type wireless sensor networks. Background technique [0002] With the rapid development of wireless technology, wireless sensor network (WSN) has become one of the cutting-edge high-tech fields that have attracted international attention. Its capabilities are widely used in industrial automation, environmental monitoring, smart home and medical systems. As a next-generation Internet technology, IPv6 can be introduced into wireless sensor networks, so that a large number of sensor nodes can have their own globally unique IPv6 addresses, realize end-to-end communication with Internet hosts using pure IP, and extend Internet applications to wireless sensor networks. Sense net. The application of IPv6 to wireless sensor networks is an inevitable trend in the development of the Internet of Things, and it...

AI Technical Summary

Problems solved by technology

However, tree routing also has its own limitations. Its path selection is single and fixed and has no redundancy capability. Failure of router nodes will cause descendant nodes to be unable to communicate with other nodes, which greatly reduces the reliability of the network, especially not suitable for network Industrial wireless environment with high reliability and security requirements

The industrial environment generally has the characteristics of high risk, low bandwidth, complex environment, and susceptibility to interference, and is prone to node failure or restart

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