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UWSNS node location method based on node movement prediction

A node positioning and node technology, applied in the field of underwater wireless sensor network positioning, can solve the problems of UWSNs node positioning delay increase, positioning accuracy decrease, network energy consumption increase, etc., to achieve long network life cycle and node energy consumption The effect of low and high node positioning accuracy

Active Publication Date: 2022-05-31
SHENYANG LIGONG UNIV
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Problems solved by technology

Due to the particularity of the underwater environment and the complexity of the underwater acoustic channel, the positioning delay of UWSNs nodes will increase, the positioning accuracy will decrease, and the network energy consumption will increase. Therefore, it is very important to design an energy-saving and accurate positioning algorithm.

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  • UWSNS node location method based on node movement prediction
  • UWSNS node location method based on node movement prediction
  • UWSNS node location method based on node movement prediction

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Embodiment Construction

[0094] Specific embodiments of the present invention will be further described in detail below.

[0095] Such as Figure 1 to Figure 5 As shown, the UWSNs node positioning method based on node movement prediction of the present invention, first, according to the standard documents related to the ocean current movement model and related research, adopts the relevant parameters of the ocean current model and related theories to establish the ocean tide model; then analyze and compare the existing The relevant algorithm for underwater positioning in underwater wireless sensor network, adopts node movement prediction algorithm according to the mobility of underwater sensor nodes; The position coordinates of the sensor nodes are obtained, thus providing the data basis for the movement prediction algorithm. Finally, according to the above node movement prediction algorithm and node movement model, the positioning algorithm of UWSNs nodes is completed.

[0096] It includes the foll...

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Abstract

The invention discloses a UWSNs node positioning method based on node movement prediction. Aiming at the mobility problem of underwater sensor nodes, the movement model of underwater nodes is studied, and a node movement prediction algorithm is adopted to solve the problem of node mobility while saving energy. Reduce network energy consumption and prolong the life cycle of the network. The accuracy of the node movement model depends on the accuracy of the node position, so in the positioning algorithm, the ranging strategy is firstly proposed, that is, to improve the positioning accuracy and further reduce the energy consumption of the node, and then estimate the position of the sensor node, aiming at accurate The gray wolf algorithm is used for optimal calculation of secondary nodes with low degrees, which reduces the positioning error of nodes. Compared with traditional mobile prediction algorithms, this algorithm has improved network energy consumption and sensor node positioning accuracy, and effectively solves the problem of short underwater network life cycle.

Description

technical field [0001] The invention relates to an underwater wireless sensor network positioning technology. Background technique [0002] In recent years, the research of Underwater Wireless Sensor Networks (UWSNs for short) has been highly valued at home and abroad. Underwater positioning is one of the necessary links. Whether it is in the military field or in the application of marine engineering technology, it needs the support of positioning technology; and applications such as network topology discovery, routing protocol optimization, and underwater navigation all require underwater positioning. Positioning technology can only be carried out smoothly as an auxiliary means. Due to the particularity of the underwater environment and the complexity of the underwater acoustic channel, the positioning delay of UWSNs nodes will increase, the positioning accuracy will decrease, and the network energy consumption will increase. Therefore, it is very important to design an en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W16/20H04W16/22H04W64/00G01S5/12H04W84/18
CPCH04W16/20H04W16/225H04W64/003H04W64/006H04W84/18G01S5/12Y02D30/70
Inventor 张文波冯永新谭小波王天琪
Owner SHENYANG LIGONG UNIV
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