Research on the Wireless sensor Network Data Fusion Technology

Abstract

Wireless sensor network ( WSN ) is a kind of energy constrained network, by using data fusion technology, the elimination of redundant data, can save energy, prolong the network life purpose. Data fusion in wireless sensor network can realize different protocol layers, Based on the introduction of wireless sensor network and data fusion related knowledge, prove that the arithmetic mean method is effective, and use OPNET software tool for network simulation, finally, analysis results and conclude, verify effects of the arithmetic average fusion algorithm for wireless sensor network. Key words-WSN; Data fusion; Average method; OPNET I. OVERVIEW Wireless sensor network is increasingly paid attention extensively, but its energy Limited is the development, has become a hot research issue. In order to improve the energy utilization rate, many scholars of the data fusion technology of wireless sensor networks with effective combination, the transmission of data and node energy consumption than less energy consumption is corresponding to the data processing, data fusion is used to increase the wireless sensor network data processing to reduce network data transmission, in order to reduce the energy consumption of the whole network, to extend its life cycle. II. WIRELESS SENSOR NETWORK STRUCTURE Sensor nodes of wireless sensor network, from the network topology structure, according to the size of the nodes of wireless sensor networks structure is divided into the plane structure and hierarchical structure of two. When the network of small scale, less nodes, using a planar structure, such as a number of small household sensor network; and when the network is larger, the number of nodes is various, must use the hierarchical structure.