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Wireless sensor data highly efficient collecting method based on clustering

A wireless sensor, high-efficiency acquisition technology, applied in wireless communication, advanced technology, electrical components, etc., can solve the problem of large protocol overhead, achieve the effect of fast data transmission, enhanced flexibility, and reduced time slice overhead

Inactive Publication Date: 2012-05-30
ZHEJIANG UNIV
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  • Claims
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AI Technical Summary

Problems solved by technology

The disadvantage of this type of algorithm is that cluster heads and clusters must be selected in each round, so the protocol overhead in the establishment phase is relatively large
For the continuous, fast and real-time data acquisition system, the above clustering routing algorithm has certain defects

Method used

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  • Wireless sensor data highly efficient collecting method based on clustering
  • Wireless sensor data highly efficient collecting method based on clustering
  • Wireless sensor data highly efficient collecting method based on clustering

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Embodiment Construction

[0026] The invention utilizes the advantage of low energy consumption of the cluster routing, and designs an efficient data collection method on the basis of the cluster routing. Among them, the cluster head nodes are fixed, with strong data processing capability and continuous energy supply. In the case of fixed cluster head nodes, the time slice occupied by cluster head selection is reduced. At the same time, each cluster in the network is relatively stable, and whether to join or leave a certain cluster is decided by the nodes in the cluster. According to the above strategies, continuous, fast and real-time data transmission becomes possible.

[0027] 1. The method for efficiently collecting wireless sensory data of the present invention includes the following mechanisms: a time slot allocation mechanism, a clock cycle adjustment mechanism, and a refresh mechanism. These mechanisms will be described separately below.

[0028] Before discussing the above mechanism, first in...

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Abstract

The invention discloses a wireless sensor data highly efficient collecting method based on clustering; the cluster-head node is fixed, and has strong data processing capacity and continual energy supply. The Sink node and cluster-head node send the beacon signal periodically; and the beacon signal is a framework forming the whole wireless sensor network. The cluster-head node and the sensor node carry out a series of operations according to the corresponding beacon signal, wherein a clock period adjustment mechanism is the key support technology in the algorithm; and the nodes in network adopt the data transmission way of active synchronization to carry out low-power consumption high-speed data communications, thereby reducing the communications jamming among each node, and guaranteeing the stability, reliability and instantaneity of data transmission. The invention is suitable for the application occasion needing fast, continuous and real-time data collection.

Description

technical field [0001] The invention relates to the technical field of wireless sensors, in particular to a method for efficiently collecting wireless sensor data based on clustering. Background technique [0002] In recent years, with the rapid development of technologies such as sensors, embedded computing, micro-electromechanical systems (MEMS), networks and wireless communications, and distributed information processing, a new mode of information acquisition and processing has emerged, that is, data acquisition, Functions such as wireless communication, information processing and collaborative work, a network composed of a large number of miniature wireless sensor nodes with such functions - Wireless Sensor Networks (WSN). The network is characterized by limited hardware resources, limited power capacity, no center, self-organization, multi-hop routing, dynamic topology, large number of nodes and dense distribution. WSN is a data-centric network, how to transmit effecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W56/00H04W84/18
CPCY02D30/70
Inventor 潘新春金文光周冬鑫
Owner ZHEJIANG UNIV
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