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Underwater node location prediction method of underwater sensor network with fixed depth

An underwater sensor, fixed depth technology, applied in location-based services, satellite radio beacon positioning systems, instruments, etc., can solve problems such as wasting energy, reduce energy consumption, and reduce information broadcasting behavior.

Active Publication Date: 2019-03-01
HOHAI UNIV CHANGZHOU
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  • Description
  • Claims
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Problems solved by technology

[0003] The current positioning method for underwater sensor networks is mainly based on multilateral positioning based on ranging. This method needs to frequently broadcast node position information, which wastes energy.

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  • Underwater node location prediction method of underwater sensor network with fixed depth
  • Underwater node location prediction method of underwater sensor network with fixed depth
  • Underwater node location prediction method of underwater sensor network with fixed depth

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Embodiment Construction

[0031] In order to enable those skilled in the art to better understand the technical solutions in the application, the technical solutions in the embodiments of the application are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the application, and Not all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the scope of protection of this application.

[0032] Below in conjunction with accompanying drawing, technical scheme of the present invention has been described in further detail:

[0033] A method for predicting the position of underwater nodes of a fixed-depth underwater sensor network, the specific steps are as follows:

[0034] Step 1: Network model, the mobile sink walks on the water surface, and the underwater nodes are deployed in the underwater three-dimensional environment, includ...

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Abstract

The invention discloses an underwater node location prediction method of an underwater sensor network with fixed depth. The method is suitable for a three-dimensional underwater sensor network with fixed node depth, and comprises the following steps: a mobile sink on the water surface performs positioning through a satellite positioning system to compute water velocity and deviation angle, and theinformation is cyclically broadcasted to a buoy node, the buoy node forwards the information to a water node again; the water node uses a Ekman drift current model to compute the water velocity and deviation angle at the located depth; and the drift displacement is finally obtained to predict the location information. In comparison with the conventional ranging-based underwater positioning method, the location information broadcast behavior of the buoy node can be reduced, and the energy loss is reduced.

Description

technical field [0001] The invention relates to an underwater node position prediction method for a fixed-depth underwater sensor network, which belongs to the field of three-dimensional underwater sensor network node positioning. Background technique [0002] Underwater sensor networks show great application prospects in military surveillance, underwater navigation, disaster prevention, pollution detection, resource extraction, earthquake monitoring, etc. In most applications, network deployment, maintenance, and data collection require the support of geographic location information. Therefore, the research and development of efficient and stable underwater sensor network positioning technology is becoming a focus of attention. [0003] The current positioning method for underwater sensor networks is mainly based on multilateral positioning based on ranging, which requires frequent broadcasting of node position information and wastes energy. Contents of the invention ...

Claims

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Application Information

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IPC IPC(8): H04W4/029H04W64/00G01S19/42
CPCG01S19/42H04W64/006H04W4/029Y02D30/70
Inventor 张杰蔡梦颖钱玉洁
Owner HOHAI UNIV CHANGZHOU
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