Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for positioning nodes of underwater sensor network

A technology of underwater sensors and sensor nodes, applied in network topology, electrical components, wireless communication, etc., can solve problems such as inability to locate, reduce positioning accuracy, and fail to meet actual application requirements

Active Publication Date: 2014-01-22
SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
View PDF3 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The coplanarity of the anchor nodes causes a large positioning error or some methods cannot be positioned, which cannot meet the actual application requirements;
[0005] 2. The system needs to deploy a large number of super nodes with high energy consumption, resulting in excessive communication overhead and shortening the network life cycle
[0006] 3. The three-dimensional positioning is transformed into two-dimensional positioning through mapping, and the easy-to-measure depth information is not fully utilized, which reduces the positioning accuracy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for positioning nodes of underwater sensor network
  • Method for positioning nodes of underwater sensor network
  • Method for positioning nodes of underwater sensor network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] The present invention will be further described below in conjunction with the drawings and embodiments.

[0035] 1. The establishment of spatial rectangular coordinate system

[0036] Select the center of the water surface in the area to be positioned to establish a spatial rectangular coordinate system. Such as figure 1 As shown, the principle diagram for establishing a spatial rectangular coordinate system is given. Assuming that the underwater positioning area is a regular cube (M*N*H), where M, N, and H are the length, width, and height of the cube respectively, then The water surface of the positioning area is a regular rectangular area (M*N), A, B, C, and D are the vertices of the rectangle. Choose one of the nodes A as the origin. The X axis is parallel to one side AB of the rectangle, and the Y axis is parallel to the rectangle. On the other side BC, the horizontal plane is the XOY plane to establish a spatial rectangular coordinate system, where the z-axis represen...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for positioning nodes of an underwater sensor network. The method comprise the following steps: a) establishing a space rectangular coordinate system; b) establishing a moving anchor node which moves along an isometric helical line; c) broadcasting anchor node coordinate information; d) receiving the coordinate information; e) judging whether the positions are determined; f) judging whether four pieces of coordinate information are received; g) judging whether the four anchor node coordinates are collinear; h) calculating the positions. According to the method for positioning the nodes of the underwater sensor network, a sensor node can determine the coordinate of self according to the four received collinear anchor node coordinates, so that the difficulty in deploying anchor nodes of the underwater sensor network is solved, and the network deployment cost is lowered at the same time; as position information of four non-collinear anchor nodes is adopted for positioning, the method complexity is reduced, and the method is easy to realize; according to characteristics of underwater deployment of the nodes, the search space of a particle group is limited, and the positioning method efficiency is improved.

Description

Technical field [0001] The present invention relates to a node positioning method of an underwater sensor network, and more specifically, to a water in which an anchor node makes a spiral motion on the water surface and the sensor node performs position calculation according to the received coordinates of four non-collinear anchor nodes. The node location method of lower sensor network. Background technique [0002] In recent years, with the rise of the marine economy and the increasing attention of various countries to maritime rights and interests, underwater sensor networks have made rapid progress. Now it has been widely used in marine observation, resource exploration and development, disaster forecasting, pollution detection, military exploration and many other civilian applications. And the military field. Node location technology is one of the key technologies of underwater sensor networks. In most applications, it is necessary to quickly and effectively locate the loca...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H04W64/00H04W84/18
Inventor 魏诺舒明雷孔祥龙周书旺刘瑞霞杨明陈长芳张重庆杨媛媛许继勇马继鹏唐梅玉
Owner SHANDONG COMP SCI CENTNAT SUPERCOMP CENT IN JINAN
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products