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Expandable wireless sensor network networking method

A wireless sensor and network technology, applied in network topology, wireless communication, climate sustainability, etc., can solve problems such as inability to achieve network resource optimization, data time extension, and unsuitable large-scale networks.

Active Publication Date: 2018-02-13
王莹莹 +1
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  • Application Information

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Problems solved by technology

In the planar routing protocol, since there is no central management node in the network, the optimization of network resources cannot be realized, and the number of data hops from the source node to the destination node is large, and the data delay is long, so it is not suitable for large-scale networks. The development trend of WSNs is that the scale is getting larger and larger, so the flat routing protocol cannot adapt to the current development trend of WSNs

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Embodiment Construction

[0011] The purpose of the present invention is to reduce the energy consumption problem caused by network reconstruction and provide a scalable wireless sensor network networking method. First of all, in the election process of candidate cluster heads, the remaining energy of nodes in the network is considered, which reduces the probability of low-energy nodes becoming candidate cluster heads; secondly, in the process of election of cluster heads, considering the remaining energy of candidate nodes, Factors such as the number of neighbor nodes of the candidate cluster heads, the value of each node to the candidate cluster heads, etc., not only ensure that the selected cluster heads have high energy, but also ensure that the cluster heads are distributed in areas where nodes are relatively concentrated. The transmission distance of data is reduced to reduce energy consumption, which is beneficial to prolong the life cycle of the network. In addition, when the average energy in ...

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Abstract

The invention aims at reducing the energy consumption resulting from network reconstruction and providing an expandable wireless sensor network networking method. The residual energy of nodes in a network is taken as a selection standard of candidate cluster heads; factors such as the residual energy of candidate nodes, the number of neighbor nodes of the candidate cluster heads and the value degree from each node to the candidate cluster heads are taken into consideration. When the average energy in clusters is greater than certain threshold, re-clustering does not need to be carried out in awhole network range, and the new cluster heads are only selected in the clusters. When new nodes add the network, network access permission values are introduced for judging which clusters the nodesadd. The new network access nodes send data through utilization of reserved time slots without waiting for termination of each cluster period, and the cluster heads do not need to redivide time slots.

Description

technical field [0001] The invention belongs to the technical field of wireless sensor networks, and relates to an expandable wireless sensor network networking method. Background technique [0002] Wireless Sensor Networks (WSNs) integrate sensor technology, wireless communication technology and database processing technology. It is composed of nodes with sensing, computing and communication capabilities. It is a new type of data-centric wireless network. The main function is to collect the information of the monitoring area where the sensor node is located, and transmit it to the base station after certain processing to realize the monitoring of the physical world. Wireless sensor networks have been widely used in various fields such as industry, agriculture, military affairs, environmental monitoring, and medical monitoring. [0003] In WSNs, node energy is limited, and node energy depletion will affect the performance of the entire network. The energy consumption of no...

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Application Information

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IPC IPC(8): H04W40/10H04W40/20H04W40/32H04W84/18
CPCH04W40/10H04W40/20H04W40/32H04W84/18Y02D30/70
Inventor 王莹莹王慧鑫
Owner 王莹莹
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