Method for collecting virtual cluster of underwater sensor network high time resolution data

A high time resolution, underwater sensor technology, applied in the field of virtual cluster collection, can solve the problems of slow propagation speed and small communication distance of underwater acoustic signals

Inactive Publication Date: 2009-01-28
WUHAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] 2) Underwater acoustic (UWA) channels travel slower than radio channels
Therefore, the communication distance of the underwater acoustic signal is relatively small

Method used

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  • Method for collecting virtual cluster of underwater sensor network high time resolution data
  • Method for collecting virtual cluster of underwater sensor network high time resolution data
  • Method for collecting virtual cluster of underwater sensor network high time resolution data

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Embodiment Construction

[0052] The method for collecting virtual clusters of monitoring data of underwater sensor network with high time resolution of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0053] The application background of wireless sensor network is described as follows:

[0054] Monitoring area size (length × width): 2000 meters × 2000 meters;

[0055] The number of wireless sensor network nodes: 50; the distance between nodes is not more than 250 meters; the communication rate of nodes is 1200bps; the amount of data generated by each sensor node in a data collection cycle is 50bytes.

[0056] The specific implementation steps are as follows:

[0057] Step 1: Deploy 50 sensor nodes (i.e., nodes 1 to 50) in the area to be monitored in advance. These nodes can determine their own geographical location according to GPS signals or other wireless sensor network positioning algorithms, and place The node positio...

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Abstract

The invention discloses a method for collecting high time resolution data simulated clusters of an underwater sensor. Firstly, a network node distribution model is set up, based on which, the network is divided into a plurality of subregions according to space, and a subregion data collection time consuming model is setup, and the time necessary for all subregions to collect data is estimated; the network is more reasonably divided into a plurality of subreions, thereby achieving the balance between the division of the subregions and the collection time consumption. One executor node is distributed for each subregion after optimized combination, and the distribution position is determined so as to collect data more efficiently. When the executors reach the designation, node routes in the subregions are set up so as to construct simulated clusters. The executor nodes are used as cluster heads, in such a small-sized network, the simulated clusters collect monitoring data of other fixed nodes at a high speed, thereby realizing the collection of the high time resolution monitoring data of a wireless sensor network; after the data are collected, the simulated clusters are dismissed, and the network is switched back to the original field monitoring state.

Description

technical field [0001] The invention relates to a virtual cluster collection method for high time resolution data of an underwater sensor network, and belongs to the new technology field of wireless sensor and actuator networks. Background technique [0002] The ocean covers 71% of the Earth's surface, but it is poorly understood and developed relative to land. In view of the increasingly prominent contradiction between the shortage of global food, resources and energy supply and the rapid growth of population, it is an inevitable trend of historical development to develop and utilize the abundant resources in the ocean. Improve marine environmental monitoring, forecasting and forecasting capabilities in general, safeguard marine rights and interests, develop marine economy, protect marine environment, warn marine disasters, and promote sustainable development of marine and coastal economies and societies occupy a very important strategic position in national development . ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B13/02H04L12/28G01S5/02G01S1/02
Inventor 李德识陈健孙涛周密王锦程
Owner WUHAN UNIV
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