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Marine ship wireless network routing method based on predicted trajectory

A wireless network and ship technology, applied in the route based on the predicted track of the ship, and in the field of point-to-point data transmission, can solve the problem of not being able to give the contact time point, etc., and achieve the effect of ensuring the success rate of transmission, high precision, and small amount of calculation

Active Publication Date: 2020-08-21
OCEAN UNIV OF CHINA
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Problems solved by technology

However, this method can only assess the probability of contact, but cannot give the time point of contact

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  • Marine ship wireless network routing method based on predicted trajectory
  • Marine ship wireless network routing method based on predicted trajectory
  • Marine ship wireless network routing method based on predicted trajectory

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Embodiment Construction

[0024] The invention is a routing method for a ship wireless communication network in the marine field. The main idea is to measure the delivery potential of the ship to the data packet according to the future trajectory and confidence table predicted by the modeling, and thus use it as a forwarding index to improve routing and make efficient routing decisions.

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] attached figure 1 A schematic diagram of the structure of the trajectory model is shown. as attached figure 1 As shown, the input of the model is Inputsequence, which represents the state sequence of the current voyage. The output is Output sequence, which represents the state sequence to be predicted. The first layer of the model structure is a one-dimensional convolutional layer, followed by a multi-layer stacked bidirectional long-short-term memory layer, and finally a superposition of ...

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Abstract

The invention relates to a marine ship wireless communication network routing method . The main idea is to predict a ship trajectory according to a trajectory model, calculate a confidence coefficienttable, measure the delivery potential of a ship to data, and guide the decision of routing by taking the delivery potential as a forwarding index. The routing method mainly comprises the following steps: enabling each ship to train a track model for a historical data set of the ship, and giving a prediction confidence coefficient table; then, in the sailing process, collecting the state information of the ship and other ships, and establishing an encounter graph; finding out all communication paths formed by encountering nodes in the encountering graph, and calculating the delivery potential;and finally, synthesizing all possible paths, and calculating the transmission potential of the ship to the receiving node to serve as an index of routing decision. The routing protocol greatly reduces transmission time delay and cost on the basis of ensuring transmission performance, and is very suitable for wireless communication of ocean ships and collection of ocean sensing data.

Description

technical field [0001] The invention is applicable to the data transmission of the wireless ad hoc network of marine ships, is a routing method based on the predicted track of the ship, and supports point-to-point data transmission. The rationale is to improve overall routing performance by forwarding packets to the encountering ship with the highest delivery potential. Background technique [0002] In recent years, the wireless communication technology and information storage capacity carried by ships have been continuously improved, and the number of various types of ships on the ocean has also continued to increase. These factors provide the possibility of information dissemination between ships. The ship wireless communication network is a new type of wireless communication network composed of ships sailing on the ocean as communication network nodes, mainly to solve the problems of insufficient ocean coverage of shore base stations and high cost of satellite communicat...

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Application Information

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IPC IPC(8): H04W40/04H04W40/24H04W84/18
CPCH04W40/04H04W40/24H04W84/18Y02D30/70
Inventor 刘超李英斌蒋若冰
Owner OCEAN UNIV OF CHINA