Underwater wireless sensor communication networking system based on optical communication

A wireless sensor and sensor group technology, applied in the field of underwater wireless sensor communication networking system, can solve problems affecting the surrounding environment, communication and detection interference, and large wiring engineering, so as to ensure normal communication, improve detection effectiveness, The effect of extending the range

Active Publication Date: 2020-09-08
南昌理工学院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional data transmission methods include electromagnetic wave, acoustic communication and wired communication. Due to the large absorption of electromagnetic waves by water bodies, the transmission under water is extremely short and not suitable for communication in water environment, while the application of acoustic communication under water may be affected. The refraction of the medium layer in the seawater and the multipath effect of the reflection of the sea surface and the seabed cause confusion in data transmission; and the bandwidth of acoustic communication is limited, and expanding the bandwidth by increasing the frequency will increase the loss of sound waves
Communication through wired means transmission through point-to-point, and there is a large amount of wiring; the data range of point-to-point communication is affected; the existence of cables in the ocean will affect the surrounding environment
[0003] Optical communication has many advantages such as low waiting time, high bandwidth, low energy consumption, and one-to-many, and is very suitable for communication networking activities of underwater sensors. The seawater environment is particularly easy to attach seaweed or other organisms, and long-term use will cause certain interference to communication and detection

Method used

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  • Underwater wireless sensor communication networking system based on optical communication
  • Underwater wireless sensor communication networking system based on optical communication
  • Underwater wireless sensor communication networking system based on optical communication

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1. An underwater wireless sensor communication networking system based on optical communication, including a surface communication platform and an underwater node, wherein the underwater node includes a sensor group for data collection and an optical communication system for data communication. Components and self-powered modules, the underwater node collects data information and communicates to the surface communication platform. The sensor group on the underwater node can include a variety of sensors such as water temperature, salinity, dissolved oxygen concentration, ammonia nitrogen concentration, light Intensity, PH value, etc., so as to monitor various indicators underwater in real time.

[0030] A plurality of underwater nodes can be located under the water in a suspended manner, so that they can be distributed in waters of the same or different depths for environmental monitoring (the position of the suspended type is relatively difficult to fix, so th...

Embodiment 2

[0031] Embodiment 2, the underwater node and the surface communication platform are used in pairs, and they communicate through cable connection. The surface communication platform includes a floating board 1 so that it can float on the sea surface. The floating board 1 is connected to the underwater node through a rope At the same time, self-powered modules can be installed on underwater nodes and surface communication platforms, which can supplement power from natural energy sources such as waves and tides to extend battery life. In addition, in order to expand the range of data detection basins, this networking system also Including a plurality of underwater navigation vehicles, in this embodiment, the vehicle acts as an underwater node with position flow, which can collect data in some areas that do not need to be monitored, and when the vehicle moves close to a certain underwater node , after entering the range of optical communication, the previously collected data can be...

Embodiment 3

[0033] Embodiment 3. This communication networking system includes a plurality of underwater nodes fixed by anchors, a sinking underwater node (ie sink node) connected to a surface communication platform, multiple aircraft, shore base stations and relay satellites . The depth of the underwater node is controlled by the length of the anchor rope to monitor the underwater environment. Specifically, the counterweight plate 2 can be arranged on the bottom of the water, and the lower side of the counterweight plate 2 is fixedly connected with a hook 11, and the hook 11 is inclined outwards to be stably fixed at the bottom of the water, and the underwater node is connected with the weight plate 2 through a tie rope so as to realize the existence of anchor nails.

[0034] If the distance between the anchored underwater nodes is within the allowable range of underwater optical communication, the adjacent underwater nodes communicate with each other through optical communication componen...

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Abstract

The invention discloses an underwater wireless sensor communication networking system based on optical communication. The system comprises a water surface communication platform and underwater nodes,the underwater nodes comprise a sensor group, an optical communication assembly and a self-powered module. The underwater nodes collect data information and transmit the data information to the watersurface communication platform through communication. The networking system further comprises an underwater vehicle. The underwater vehicle is also provided with an optical communication assembly anda sensor group; data transmission is carried out between the underwater vehicle and the underwater nodes, the range of a communication networking system is greatly expanded; compared with a traditional optical communication networking mode, the optical communication networking mode is more flexible and gets rid of cable constraints, and the bit error rate is lower, compared with the prior art, thedevice is simple in structure and higher in speed, more visual, accurate and rich underwater information is provided, the bandwidth is larger, development of big data transmission is facilitated, anoptical communication probe and a detection probe can be cleaned regularly, algae or microorganisms can be prevented from wrapping the optical communication probe and the detection probe, the detection effectiveness is improved, and normal communication is guaranteed.

Description

technical field [0001] The invention relates to the technical field of underwater signal transmission, in particular to an optical communication-based underwater wireless sensor communication networking system. Background technique [0002] The ocean is an important natural resource, and changes in its state will significantly affect the surrounding environment. The study of the ocean environment is of great significance for offshore exploration, pre-stress of marine disasters, and marine military. Sensor detection is an important marine environment detection tool. Obviously, in order to be able to obtain relevant data in real time or at regular intervals, online data acquisition or regular transmission of data acquisition methods are essential. Due to the particularity of the ocean situation, not only the data detection of the ocean surface, but also the data detection of the deep water layer is required. The traditional data transmission methods include electromagnetic w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/11H04W4/38H04W4/40H04W84/18H04B13/02B08B1/00B08B1/02
CPCH04W4/38H04W4/40H04W84/18B08B1/002B08B1/02H04B10/80Y02D30/70
Inventor 沈宏岩
Owner 南昌理工学院
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