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A marine communication system based on Lifi technology

A marine communication and signaling system technology, applied in the field of marine communication systems based on Lifi technology, can solve problems such as inability to pass through walls, short receiving distance of network signals, and high fees, so as to reduce the probability of hijacking and intrusion, and optical signal connection The effect of maintaining stability and long-distance signal transmission

Pending Publication Date: 2019-01-18
TAIZHOU KEPUNI COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of marine satellite antennas is that they cannot receive satellite TV signals when they are far away from the shore. They can access the Internet through satellite signals, but the network speed is extremely slow and the charges are expensive. In addition, it is difficult for the crew who have traveled at sea for a long time to make normal contact with the land.
[0004] At present, the ship-to-shore wireless communication shore station can already realize the wireless network connection with offshore ships, but there are problems such as short network signal receiving distance, low network speed limit, poor network signal when the distance is slightly farther, and low security.
But because of its fatal shortcoming - unable to pass through walls, its research lags far behind the current popular WIFI wireless transmission technology
[0007] However, on the vast ocean, except for the limited field of view caused by the curvature of the earth, there are almost no objects that can affect the propagation of light. Therefore, the value of visible light communication technology in ocean communication is worth studying, and now with the People in the ocean have an increasing demand for traffic, and LIFI may become our better choice in the future

Method used

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  • A marine communication system based on Lifi technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Such as figure 1 As shown, a marine communication system based on Lifi technology, including a shipborne signal system and a shore-based signal source system;

[0039] The shipborne signal system includes a base 1 fixed on the hull, a GPS positioning device 10 installed on the base, a shipborne signal alignment device 2 installed on the top of the base, and a base station installed on the shipboard signal alignment device. Shipborne signal transceiver device 3 of Lifi technology;

[0040] The shore-based signal source system includes a shore base 4, a shore-based signal alignment device 5 installed on the top of the shore base, a request signal receiving device 6 fixed on the top of the shore base, and a base-based signal installed on the shore-based signal alignment device. Shore-based signal transceiver device of Lifi technology7.

[0041] The shore-based signal alignment device 5 and the shore-based signal transceiving device 7 have multiple sets, which can provide...

Embodiment 2

[0049] The operation steps of the marine communication system based on Lifi technology are:

[0050] S1) The shipborne signal alignment device 2 obtains its own precise positioning from the GPS positioning device 10, and finds the precise location of the nearby shore-based signal source system from the electronic map, and calculates the ship's position according to the distance, azimuth, and elevation difference between the two. For the adjustment orientation required by the signal-carrying transceiver device, after the ship-borne signal transceiver device is adjusted, it sends a request signal to the request signal receiving device 6, and the information content of the request signal includes the call sign of the ship, ship name, MMSI, GPS coordinates, ship The deviation value between the signal transmitting and receiving device and the GPS positioning device;

[0051] S2) After receiving the request signal, the request signal receiving device 6 authenticates the request sign...

Embodiment 3

[0057] At present, most offshore ships have been equipped with ship AIS devices. After using the device of Embodiment 1, the request signal receiving device will analyze the received request signal and send the ship's call sign, ship name, MMSI, GPS coordinates and other information to The local management department can realize real-time control of the ship, which can better replace the ship's AIS device and save costs.

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Abstract

This case relates to a marine communication system based on Lifi technology, the system including a shipboard signal system and a shore-based signal source system. The shipboard signal system comprises a base, a GPS positioning device, a shipboard signal alignment device and a shipboard signal transceiver. The shore-based signal source system comprises a shore-based, a shore-based signal alignmentdevice, a request signal reception device and a shore-based signal transceiver. After receiving the request signal, authentication of the request signal, after certification, the request signal receiving device calculates the azimuth of the shipboard signal transceiver according to the request signal, adjusts the shore-based signal alignment device so that the shore-based signal transceiver is aligned with the onboard signal transceiver, after the downlink signal is received, the ship-borne signal transceiver transmits the uplink signal to the shore-based signal transceiver. After the dockingis successful, the long-distance, high-speed and safe networking can be realized.

Description

technical field [0001] The invention belongs to the field of marine communication, and in particular relates to a marine communication system based on Lifi technology. Background technique [0002] Since the invention of satellites, satellite communications have been inextricably linked with human life, such as satellite TV, satellite broadcasting, and satellite telephones. Satellite communication is realized by the forwarding function of the synchronous satellite. The ground port transmits related audio and video signals to the synchronous satellite. The synchronous satellite transmits the audio and video signal in a certain direction. The area covered by the signal can be received by the satellite. Equipment to receive signals and watch programs: In the modern water transport industry, once the ship leaves the shore, it can only communicate with the outside world through satellite communication. Therefore, the marine satellite antenna is almost the standard configuration o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/116G01S19/03
CPCH04B10/116G01S19/03
Inventor 崔小飞
Owner TAIZHOU KEPUNI COMM EQUIP CO LTD
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