Method and system for fusion of multi-source monitoring data based on heterogeneous clustering wireless sensor network

Abstract

The invention provides a method and a system for the fusion of multi-source monitoring data based on a heterogeneous clustering wireless sensor network. The system comprises a plurality of monitoring nodes, a plurality of cluster head nodes, a plurality of trunk nodes, a gateway node and an upper computer. The method comprises the following steps: after the gateway node switches on the upper computer, a PAN network in conformity with the ZigBee protocol is established; after the cluster head nodes and the trunk nodes are electrified, the cluster head nodes and the trunk nodes search for and join in the PAN network to form a wireless meshed network; the cluster head nodes receive broadcast packets of the monitoring nodes to carry out correlation calculation, and provide the calculation result to the upper computer through the wireless meshed network to carry out clustering processing; and then, the monitoring nodes in the cluster acquire environmental data according to the clustering result and send the data to the cluster head nodes in the cluster, and the cluster head nodes send the acquired environmental data to the upper computer through the wireless meshed network to be subjected to corresponding processing based on different sources of the environmental data. Thus, the heterogeneous clustering wireless sensor network and the wireless meshed network are combined, and the advantages of the both can be fully used for data acquisition.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a method and system for wireless sensor network data fusion based on a heterogeneous clustering model. Background technique [0002] With the rapid development and maturity of sensor technology, low-power wireless communication technology and embedded computing technology, it is possible to produce low-power miniature sensor nodes with sensing, wireless communication and information processing capabilities. These tiny sensor nodes together form a wireless sensor network, through short-distance communication between nodes to cooperatively perceive, collect and process various environmental information (temperature, humidity, etc.) in the coverage area, and gather them to the remote base station (Sink) for processing , to meet the needs of different applications in different sensor networks. The characteristics of random deployment, self-organization, and environmental adapta...

AI Technical Summary

Problems solved by technology

[0004] The information processing mode in the wireless heterogeneous network is currently mainly to perform data fusion processing on the sensory information

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