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Periodical quick positioning method of underwater communication network based on centralized topology structure

A technology of topology structure and positioning method, applied in the directions of positioning, measuring devices, instruments, etc., can solve the problems of difficult to meet the requirements of rapid positioning, high propagation delay and node processing time, etc., to meet the requirements of periodic rapid positioning and accurate positioning. Effect

Inactive Publication Date: 2015-02-11
INST OF ACOUSTICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The purpose of the present invention is to overcome the defect that the positioning method of the underwater communication network in the prior art requires high propagation delay and node processing time, and is difficult to meet the requirements of fast positioning, thereby providing a periodic fast positioning method

Method used

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  • Periodical quick positioning method of underwater communication network based on centralized topology structure
  • Periodical quick positioning method of underwater communication network based on centralized topology structure
  • Periodical quick positioning method of underwater communication network based on centralized topology structure

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Embodiment Construction

[0033] The positioning method of the present invention is applied to an underwater communication network based on a centralized topology. For ease of understanding, before the positioning method of the present invention is described in detail, the underwater communication network based on a centralized topology is first described. .

[0034] The underwater communication network based on the centralized topology has the following characteristics: the network scale is small, and the nodes have mobility, that is, the relative position of each node in the network is constantly changing; Nodes communicate with the central node.

[0035] The positioning method of the present invention will be described below in conjunction with the accompanying drawings and specific embodiments.

[0036] In one embodiment, the underwater communication network based on a centralized topology has three nodes, respectively represented as node 0, node 1 and node 2; node 1 is a central node, and node 0 ...

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Abstract

The invention relates to a periodical quick positioning method of an underwater communication network based on a centralized topology structure. The periodical quick positioning method comprises the following steps of setting an uniform positioning standard interval time; enabling a common node to send a positioning signal at the initial point of one interval time; after a center node receives the positioning signal, recording the receiving time, and calculating the distance between the center node and each common node according to the time and the initial point of the latest interval time; after one common node receives the positioning signal of other common nodes, recording the receiving time of the positioning signal, and calculating the delay and distance between the common nodes according to the time and the initial point of the latest interval time; enabling one common node to send the message carrying the distance information between the common node and other common nodes to the center node; after the center node receives the message, extracting the distance information between the common nodes; according to the distance between the center node and the common nodes and the distance between the common nodes, calculating the distance between the nodes.

Description

technical field [0001] The invention relates to the field of underwater acoustic network, in particular, the invention relates to a periodic fast positioning method of an underwater communication network based on a centralized topological structure. Background technique [0002] With the rapid development of modern information technology, the three-dimensional information network covering the ground, air, space, and water has formed a huge communication network, organically linking the politics, economy, culture, and military of various countries, and bringing global economic benefits to the world. The exchange and development of resources, the development and utilization of resources, military reconnaissance and defense have brought huge benefits. With the continuous development and research of oceans around the world, underwater acoustic communication network has become a current research hotspot. [0003] Due to the needs of research and development of marine resources, ...

Claims

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Application Information

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IPC IPC(8): H04B13/02G01S5/18
Inventor 刘磊李宇张扬帆张春华黄海宁
Owner INST OF ACOUSTICS CHINESE ACAD OF SCI
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