Tree structure-based data aggregation method with reliability assurance

Abstract

The invention discloses a tree structure-based data aggregation method with reliability assurance. The aggregation method comprises the following steps: generating a tree creating module, an in-tree data aggregation module and a data detection module, and generating a tree revising module. The aggregation method adopts the tree structure to realize fast aggregation of data in the network, ensure that data can be conveniently found and used in the entire network, reduce the communications of the network in the data aggregation process and prolong the service life of the entire network; and the data detection method and the method of generating tree revise are both adopted and the phenomenons such as the damage and death of node can be monitored and found, thus increasing the accuracy and effectiveness of data transmission in the network and the reliability of the entire network.

Description

technical field [0001] The present invention relates to a method of data collection with reliability guarantee in wireless sensor network, more particularly, refers to a method of data collection with reliability guarantee based on tree structure. Background technique [0002] In a wireless sensor network, due to weak communication capabilities of nodes, limited energy, and interference from the external environment, the dynamic changes of the network are rapid, and phenomena such as link failure and node death occur from time to time. If the changes in the network status are not managed It is easy to cause network performance degradation and data loss in the network, and even cause premature network failure. Therefore, it is necessary to improve the reliability of data collection in wireless sensor networks. At the same time, the limited resources of wireless sensor networks require that the process of collecting status information be fast and effective, not to occupy netw...

AI Technical Summary

Problems solved by technology

Therefore, node failure or transmission failure will cause the aggregation result of the entire subtree to be lost. Unfortunately, node failure and transmission failure often occur in wireless sensor networks

Therefore, in the aggregation strategy based on the spanning tree, a large part of the aggregation results cannot be conveyed to the root node of the tree, resulting in only the data aggregation results of some nodes being obtained during data query, so there will be major problems mistake

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