An underwater networking method for underwater robots

Abstract

The invention provides an underwater robot-oriented underwater networking method. The method comprises the steps of creating an underwater communication network topology and a communication protocol that target underwater robots for multiple robots in water; according to the created underwater communication network topology and communication protocol, allocating a unique address and a broadcast address to each node in the network; when a robot requests to send data to another robot, designing an underwater electric field communication network layer routing protocol according to Ad hoc On-demand Distance Vector Routing, previously, building a route from a source node to a destination node through broadcast information, then selecting, by a robot as the source node and a robot as the destination node, a communication link according to a routing table and communicating with each other; and if the communication link is disconnected, initiating a route maintenance mechanism, after the linkrecovers, continuing to send data. The method has the advantages that less energy is consumed, networking is performed quickly, nodes are increased and decreased flexibly, and the communication link can recover automatically.

Description

technical field [0001] The invention relates to the technical field of underwater communication, in particular to an underwater networking method for underwater robots. Background technique [0002] Oceans cover more than 70% of the Earth's surface, and nearly half of the world's population lives within 100 kilometers of the coastline. The ocean not only contains abundant resources, but also plays an important role in transportation, fishing, military affairs, trade and other fields. With the continuous consumption of land resources, the development of marine technology, striving for marine rights and interests, and conducting marine exploration have risen to the strategic level of various countries. However, human exploration of the ocean is far from enough, and the proven ocean is less than 10% of its total capacity. As an important tool for exploring the ocean, underwater robots and their underwater networks have attracted People are paying more and more attention. [...

AI Technical Summary

Problems solved by technology

[0004] Underwater networking is the basis for realizing robot group collaboration. However, due to the limitation of underwater communication, a difficult problem that plagues people, there are still many shortcomings in the development of underwater networking technology.

The high-frequency electromagnetic waves widely used in land communications will be severely attenuated when propagating in water, making it difficult for the communication distance to exceed 1 meter; even the most widely used underwater acoustic communication is susceptible to environmental noise interference, multipath And the Doppler effect and other issues, the typical propagation velocity of sound waves near the water surface is 1500m / s, which is 5 orders of magnitude lower than the electromagnetic wave velocity, and underwater acoustic propagation requires high energy consumption, which is difficult for small underwater robots. application

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