Research On Low-power Consumption Based-on Data Fusion In WSN

The WSN is self-organized into a network composed of tens of thousands of sensor nodes, Utilizing the limited resource transmits datum to observer, Characteristics of wireless sensor network (WSN) are low-cost, multi-hop routing, Small volume, no infrastructure and wireless communications. Because of the unique advantages of wireless sensor,The WSN has got rapid development and broad prospects for development in various fields.Adjacent nodes in wireless sensor network have space and time correlation, it produces large amounts of redundant datum, if these datum are transmitted to the user directly, the user not only cannot get effective datum but also the WSN is a waste of limited energy in datum transmission badly, in order to solve the problem,datum fusion technology arises at the historic moment, it could make fusion technology to the datum in the network, for improving the datum accuracy, decreasing datum transmission in the network, reducing power consumption and prolonging the service life of the network, but so far there is no datum fusion technology to adapt to all of the application environment, because of the characteristic of the wireless sensor network the research of wireless sensor network must start with a specific application environment as the carrier,this text is based on the forest fire prevention as the specific application environment, makes energy saving problem in the process of study of wireless sensor network with a low power consumption, energy balance for target and combining with relevant central datum fusion algorithm and clustering routing protocol, Innovation points are follows:(1) to reduce power consumption, load balancing strategy;(2) supports a wide range of the scene, main work is as follows:(1)we research datum fusion technology of wireless sensor network, and analysis center datum fusion algorithm in detail and its deficiency. This paper discusses the feasibility of center data fusion algorithm based on clustering routing protocol.(2)we analysis routing protocol of wireless sensor network, and focus on comparing and analyzing routing protocol based on flooding and routing protocol based on the clustering for integrating the advantages and disadvantages of both algorithms. (3) In the environment of forest fire prevention, we combine fully the advantages of clustering routing protocol to improve data fusion algorithm and put forward center of the data fusion algorithm based on the clustering for further reducing power consumption, load balancing strategy, prolongs the network’s time.