Method and device for fusing data of wireless sensor network
A wireless sensor and data fusion technology, applied in network topology, wireless communication, advanced technology, etc., can solve the problems of wasting sensor node transmission bandwidth and energy consumption, and achieve the effect of reducing the number of times of reporting redundant data and reducing energy consumption
Active Publication Date: 2013-04-10
江苏感知恒安科技有限公司
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Problems solved by technology
Usually, nodes report redundant data, which has no gain for the final fusion result, but it can waste the precious transmission bandwidth and energy consumption of sensor nodes
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[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0041] A wireless sensor network is an intelligent dedicated network in which a large number of sensor nodes with specific functions transmit information to each other through self-organized wireless communication and cooperate to complete specific functions. Aiming at the existing MAX-MIN fusion technology in wireless sensor networks, a data fusion method and device for wireless sensor networks is proposed to reduce the energy consumption of nodes ...
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Provided is a method and device for fusing data of a wireless sensor network. The wireless sensor network adopts a clustering hierarchical structure. Suppose that n sensor nodes are arranged in a cluster, at a first stage in one scheduling cycle, m sensor nodes in the cluster report data to cluster head sensor nodes sequentially, and the cluster head sensor nodes generate temporary MAX-MIN fusion data results; at a second stage in the scheduling cycle, the cluster head sensor nodes broadcast the temporary MAX-MIN fusion data results to the remaining (n-m) sensor nodes; the remaining (n-m) sensor nodes judge whether data to be uploaded of the remaining sensor nodes is redundant data respectively; at a third stage in the scheduling cycle, in the remaining (n-m) sensor nodes, when the data of the remaining sensor nodes is not redundant data, data is reported to the cluster head sensor nodes; and when the data of the remaining sensor nodes is redundant data, the sensor nodes are in a sleep mode. Energy consumption of nodes in the network is reduced.
Description
technical field [0001] The present invention relates to the technical field of wireless sensor networks, and more specifically, to a data fusion method and device for wireless sensor networks. Background technique [0002] Different from traditional wireless communication networks, wireless sensor networks are data-centric perception networks. Environmental monitoring and data collection are typical applications and operations of wireless sensor networks. As we all know, due to the limited energy and communication capabilities of sensor nodes, it is difficult for the network to support the transmission of all the data collected by all nodes to the base station for processing. [0003] In fact, due to the correlation and redundancy among the data collected by different sensor nodes, it is not necessary to transmit all the data collected by all nodes to the base station. Data fusion technology is an effective means to eliminate or reduce data redundancy and improve the effic...
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Login to View More IPC IPC(8): H04W40/10H04W40/24H04W84/18
CPCY02D30/70
Inventor 邓瀚林黄河清沈杰刘海涛
Owner 江苏感知恒安科技有限公司