Research on node repair mechanisms in wireless sensor networks

Because of the wireless sensor network nodes exist energy supply constraints, deployment environment bad and their own property factors, this paper puts forward a wireless sensor network node repair mechanisms, namely a repair method of calling backup node, and in the case of some parts of the node failure, it can awaken backup node, the backup node selected through improved KNN algorithm, it can be independent, dynamic reconstruction of wireless sensor network, finally it is implemented through OMNet++ simulation platform, the results show that this method can effectively achieve the repair of the node, it improves the wireless sensor network fault tolerance and robustness.