KR101571519B1 - Repeater system for marine wireless communication - Google Patents

Abstract

The present invention relates to a repeater system for marine wireless communications comprising: a base station (10); a marine fixated body (20) which obtains a fixation location on the sea to form a network with the base station (10); and an ad-balloon which is connected to an upper space of the marine fixated body (20) by a line material (35) and includes a repeater (32), which relays wireless communications from the base station (10). Therefore, the repeater system contributes to construction of an infrastructure for obtaining a wireless communications private network in a marine environment in a wide range in a manner of performing a data transmission and reception service with reliability increased in cooperation with a buoy on the sea, the ad-balloon, a small wind power generator and so on.

Description

[0001] Repeater system for marine wireless communication [

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a wireless communication repeater system, and more particularly, to a repeater system for marine wireless communication capable of increasing data transmission / reception capacity and resolution at sea.

The maritime communication has a possibility to develop rapidly to the infrastructure level comparable to that of the terrestrial communication in terms of energy saving, marine environment prediction, resource development as well as the safety for the distress and emergency structure of the ship. However, in Korea, there is still insufficient acceptance of various maritime traffic, so more active investment and development are required.

For example, the Buoy system in the marine environment is installed for the purpose of observing the weather conditions such as ocean current / wave, water temperature, and salinity. In this case, information input through various sensors is acquired and managed using RF frequency resonance with a CDMA base station on the land. In the case of maritime communication in this case, marine stationary platform or ship, as well as a repeater mounted on the buoy, are utilized.

However, this is limited by the data transmission / reception capacity (transmission speed: about 14.4 Kbps to 64 Kbps) and transmission distance (about 5 Km) based on the Code Division Multiple Access (CDMA) communication technology. In addition to the shortage of power consumption based on the sunlight, it also involves difficulties in management such as battery replacement for power supply.

In this connection, it is assumed that the coverage of the base station dedicated to maritime mobile communication is at least 100 km, the maritime mobile communication service repeater is installed at the maritime transportation means, and the dedicated base station has the LOS of at least 100 km sight at the height above 780m. In the prior art document 2, a marine dedicated base station for relaying 1FA is installed, and a marine repeater is installed as a carrier copy type repeater to receive and relay signals transmitted from a dedicated base station for maritime communication, thereby reducing installation investment, We expect to increase efficiency.

However, according to the above-mentioned prior art documents, although it is possible to locally increase the capacity and transmission distance of wireless communication, it is insufficient to establish a wireless communication infrastructure at a level similar to that of land communication in a wide range of maritime areas.

1. Korean Patent Registration No. 0586317 entitled " Maritime Mobile Communication Service Method "(Published on January 6, 2005) 2. Korean Patent Publication No. 2006-0018747 "Maritime Relay System of Mobile Communication" (Published on Mar. 2, 2006)

SUMMARY OF THE INVENTION It is an object of the present invention to overcome the above-mentioned problems of the related art by providing a maritime wireless communication system for transmitting and receiving data between a ship and a ship, And to provide a repeater system for communication.

In order to accomplish the above object, the present invention provides a repeater system for performing wireless communication in the sea, comprising: a base station; A marine fixing device for securing a fixed position of a marine to form a network with the base station; And an adder connected to the upper space of the marine anchor using a wire material and having a repeater for mediating wireless communication from the base station.

In the detailed configuration of the present invention, the base station, the maritime fixture, and the adverbon are based on a 4G LTE or equivalent transmission rate or higher, and maintain the height of the advertisement balloon to realize a transmission distance of 35 km or more.

As a modification of the present invention, at least one of the maritime stationary fixture and the advertisement balloon is further provided with a satellite terminal for relaying satellite communication.

In a detailed configuration of the present invention, at least one of the marine anchor and the advertisement balloon is provided with a wind power generator for receiving driving power.

As a detailed configuration of the present invention, the wire material is characterized by using synthetic fibers, carbon fibers, and chains selectively.

In this case, the wire rod is provided with a rotary joint for preventing twist and maintaining electrical connection.

As a modification of the present invention, the repeater of the maritime standing fixture is capable of communicating with a sonar in water, and is also configured to supply power required to the underwater AP.

At this time, the repeater installed in the marine fixed body is configured to be capable of communicating with a sonar in water and an installed ship or marine plant operating in the marine area.

In a detailed configuration of the present invention, at least one of the resolver and the ad-bundle is equipped with a radio wave transmitter so as to transmit information on the current position.

As described above, according to the present invention, a data transmission / reception service in which reliability is enhanced by linking an ocean buoy, an ad-balloon, a small wind turbine generator and the like is performed, thereby contributing to the construction of an infrastructure for securing a network in a wide marine environment .

1 is a schematic diagram illustrating a repeater system according to the present invention as a whole;
FIG. 2 is an enlarged schematic diagram showing a main part of the system according to the present invention; FIG.
Figure 3 is a schematic diagram generally illustrating a system according to a variant of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention proposes a repeater system for performing wireless communication at sea. The maritime wireless communication is aimed at a terrestrial wireless communication service such as voice, video, data, SMS, SNS. It may also be linked to modern maritime communication systems such as GMDSS, AIS, SSAS and LRIT, without violating the standards for marine radio facilities stipulated by IMO, ITU-R and IEC.

The base station 10 applied to the present invention means an existing one installed in a major city center of each country, but it is preferable that the base station 10 includes a new one installed in the harbor or coast. Particularly, it is preferable that the base station 10 of a port or a coast is equipped with a broadband antenna while installing it at a high altitude.

In addition, according to the present invention, the sea fixture 20 has a structure for securing a fixed position of the sea to form a network with the base station 10. The drawings of the present invention illustrate the marine fixture 20 but may include a moving body 15 such as a maritime platform or ship. A plurality of the marine anchors 20 are arranged at a distance capable of configuring a wireless communication network around the base station 10. Of course, the repeater 22 of the maritime security fixture 20 may also implement an Ad-hoc network, i.e., a SANET (Ship Ad-Hoc Network), between nodes that are out of the network.

As a modification of the present invention, at least one of the marine anchor 20 and the advertisement balloon 30 is further provided with a satellite terminal 25 for relaying satellite communication. In FIG. 2, the satellite terminal 25 is installed in the exposed portion above the water surface of the sea fixture 20, and is configured to have broadband characteristics in various areas to support satellite communication. In particular, when the configuration of the network is obstructed due to the absence of the moving body 15 or the sea fixing body 20 within a predetermined distance (for example, 30 km), the satellite (Inmarsat) It is possible to maintain a high-speed transmission speed. The satellite terminal 25 of the marine anchorage 20 can be equally applied to the advertisement balloon 30.

According to the present invention, there is provided a structure in which an add-on board 30 having a repeater 32 that mediates wireless communication from a base station 10 is connected to a space above the sea settlement body 20 using a wire rod 35 . The adsorbent 30 fills low helium or hydrogen with a low risk of explosion and maintains a float at a constant altitude above sea level. The wire rod 35 is installed in a manner favorable to fixing the position of the advertising balloon 30 in consideration of the sea environment. The repeater 32 of the add-on 30 maintains the same basic configuration as the repeater 22 of the marine anchor 20. However, the high-capacity and small-sized antennas are applied in different patterns so as to reduce the additional weight for the add-on 30. For example, the receiving parabola antenna is installed on the bottom surface of the addon 30, and the transmitting dipole antenna is provided on the side surface of the addon 30.

In the detailed configuration of the present invention, the base station 10, the maritime fixture 20, and the advertisement balloon 30 are installed on the basis of the transmission speed of 4G LTE or equivalent, And the height is maintained. The 4G LTE communication based data transmission / reception scheme can increase the capacity (transmission rate: 100 Mbps) as compared with the conventional CDMA. According to the arithmetic calculation, if the height H of the advertisement balloon 30 is 100 m, the transmission distance L is about 35 km. When the height H of the add-on ball 30 reaches 300 m, the transmission distance L increases to about 62 km. Of course, the transmission distance may further include a slight increase depending on the height of the advertisement balloon 30 and the LTE frequency characteristics.

In other words, the technical idea of the present invention is that the natural constraint that the earth is spherical and the reach of the wave is limited to the horizon in the sea is floated in the air connected to the sea fixing point by the wire to enlarge the straight- . This is because, according to Pythagorean theorem, the radius of the earth (about 6,370 km) corresponding to the long side of the right-angled triangle is relatively long, so that even if the height of the floated adverb increases slightly due to the short- It is based on the theoretical principle that the propagation distance of the corresponding radio wave is greatly increased.

The repeaters (22) and (32) of the present invention are installed in an open area free from a physical obstacle obstructing reception of radio waves. In other words, if the repeaters 22 and 32 are installed far away from the sea surface so as not to be affected by waves, it is possible to avoid scattering of radio waves and interference because there is no swaying of sea level or scattering of sea water.

At least one of the marine anchor 20 and the advertisement balloon 30 is provided with a wind power generator 40 for receiving driving power. The wind turbine generator 40 is advantageous in that it has a small structure for binding on the wire member 35 as compared with the conventional solar cell. It is preferable that the wind power generator 40 for supplying power to the marine anchor 20 and the wind power generator 40 for supplying power to the ad lamp 30 are separately installed. However, if the length of the wire rod 35 is short, all of the electric power may be supplied to the single wind power generator 40.

As a detailed configuration of the present invention, the wire member 35 is characterized by using synthetic fibers, carbon fibers and chains selectively. Since synthetic fibers and carbon fibers are light and high-strength, they retain their ability to support the marine adverbons (30) for a long time. The steel material chain can be used in combination with synthetic fibers or carbon fibers only in a part of the wire member 35. [ Synthetic fibers and carbon fibers should be woven in rope form. In any case, the wire rod 35 is provided with a water-resistant and cold-resistant treatment so as to enhance its durability at sea.

At this time, the wire rod 35 is provided with a rotary joint 38 for preventing twisting and maintaining electrical connection. The rotary joint 38 is a structure that prevents relative disconnection while permitting relative rotation of both ends in the middle of the wire rod 35. [ When a plurality of wind turbines (40) are mounted, the rotary joint (38) only prevents the wire rods (35) from being twisted. If one wind turbine generator 40 is mounted to distribute electric power to the electric wire, the rotary joint 38 must also maintain the electric connection state.

On the other hand, a lamp (LED, etc.) is installed in the middle of the wire member 35 to prevent collision at sea.

As a modification of the present invention, the repeater 22 of the maritime fixture 20 is configured to be capable of communicating with the sonar 28 in the water, and to supply power required to the underwater AP. The sonar detector 28 is installed in the water and collects the requested information to perform sonic communication. The repeater 22 is connected in a wired manner to an antenna 23 disposed in the water to receive the signal of the sonar 28. [ The underwater AP (not shown) communicates with the sound wave detector 28 including the antenna 23.

In this case, the repeater 22 installed in the marine vessel 20 is configured to be able to communicate with the sonar 28 in the water and the installed ship or marine plant operating in the marine area.

According to this configuration, it is possible to construct a self-network that integrates not only the sea but also the undersea environment.

As a detailed configuration of the present invention, at least one of the solution fixture 20 and the add-on 30 is equipped with a radio wave transmitter 45 to transmit information on a current position. The radio wave transmitter 45 sends the emergency signal to the land base station 10 or the moving object 15 when the add-on balloon 30 falls or is arbitrarily separated. Accordingly, it is possible to track and recover the movement route of the advertisement balloon 30 in the future. The radio wave transmitter 45 of the add-on 30 can be equally applied to the marine anchor 20.

On the other hand, the advertisement balloon 30 of the present invention may not necessarily be installed in the sea fixture 20, but may be installed in a lighthouse, a terrestrial repeater located in a book, and a base station 10. In this case, the installation position of the repeater 22 relative to the marine fixed body 20 can be somewhat reduced.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: base station 15: mobile object
20: Maritime Fixture 22: Repeater
23: antenna 25: satellite terminal
28: sonar 30: adveron
32: repeater 35: wire rod
38: rotary joint 40: wind turbine generator
45: Radio wave transmitter

Claims (9)

1. A repeater system for performing wireless communication at sea, comprising:
A base station (10);
A marine anchorage 20 having at least one of a buoy, a vessel, and a marine platform for securing a maritime fixed position for forming a network with the base station 10; And
An addon 30 connected using wire rods 35 to maintain a predetermined position in an open space in the upper atmosphere of the solution fixture 20 and having a repeater 32 for mediating wireless communication from the base station 10; And a repeater system for the maritime wireless communication. The method according to claim 1,
The base station 10, the maritime fixture 20 and the advertisement balloon 30 are based on 4G LTE or equivalent transmission speeds and maintain the height of the advertisement balloon 30 so as to realize a transmission distance of 35 km or more Repeater system for maritime wireless communication. The method according to claim 1,
Characterized in that at least one of the marine fixture (20) and the advertisement balloon (30) further comprises a satellite terminal (25) for relaying satellite communication. The method according to claim 1,
Characterized in that at least one of the marine fixture (20) and the advertisement balloon (30) comprises a wind power generator (40) for receiving driving power. The method according to claim 1,
Wherein the wire rod (35) selectively uses synthetic fibers, carbon fibers, and chains. The method of claim 5,
Characterized in that the wire (35) has a rotary joint (38) for preventing twisting and maintaining electrical connection. ≪ RTI ID = 0.0 > The method according to claim 1,
Characterized in that the repeater (22) of the maritime fixture (20) is configured to communicate with the sonar (28) in the water and to supply the power required for the underwater AP. The method of claim 7,
Wherein the repeater (22) installed in the maritime fixture (20) is configured to be capable of communicating with the sonar underwater (28) and an installed ship or marine plant operating in the marine area . The method according to claim 1,
Characterized in that at least one of the solution fixture (20) and the add-on (30) comprises a radio wave transmitter (45) for transmitting information on the current position.

Images