KR102097279B1 - Apparatus for increasing communication distance between underwater optical communication devices - Google Patents

Abstract

Provided is an apparatus for increasing a communication distance between underwater optical communication devices. According to one embodiment, the apparatus for increasing a communication distance between underwater optical communication devices comprises: an optical transmission unit converting an electrical signal into an optical signal and transmitting the converted signal to the outside; and a plurality of underwater optical communication devices configured with an optical reception unit for receiving the optical signal from the outside. The plurality of underwater optical communication devices are disposed to be spaced apart from each other within a distance capable of communicating with each other, and can communicate with an external optical transception device by at least one underwater optical communication device.

Description

A device that increases the communication distance between underwater optical communication devices {APPARATUS FOR INCREASING COMMUNICATION DISTANCE BETWEEN UNDERWATER OPTICAL COMMUNICATION DEVICES}

The following embodiments relate to underwater optical communication technology, and more particularly, to an apparatus capable of increasing a communication distance between underwater optical communication devices having a short communication distance.

Human activities in water, such as oceanography research, ocean oil exploration, seabed investigation, and environmental monitoring, are increasing significantly.

Since underwater radio wave communication is impossible in water, communication using ultrasonic waves or ultra long waves or wired communication is used. In the case of wired communication, the length of the communication line is limited, and in the case of wireless communication using ultrasonic waves, an intermediate transmission device must be installed on the water surface, and an operator should not be separated from the intermediate transmission device by about 200 m or more.

Therefore, there is a need for a method capable of efficiently performing communication underwater.

Korean Patent Publication No. 10-2018-0023585 describes a technique for a system and method for such underwater lighting, irradiation, and wireless optical communication.

Korean Patent Publication No. 10-2018-0023585

Embodiments describe a device for increasing a communication distance between underwater optical communication devices, and more particularly, provide an underwater optical communication technology capable of communicating from a short underwater distance to a long distance.

According to the embodiments, by arranging an underwater optical communication device in which the optical transmission unit and the optical reception unit are integrally arranged in a parallel and parallel grid structure, the distance between the underwater optical communication devices having a communication distance within 200 m can be increased to a long distance as well as an external optical transmission / reception device. It is to provide a device for increasing the communication distance between the underwater optical communication device, which can also increase the communication distance with.

An apparatus for increasing a communication distance between underwater optical communication devices according to an embodiment includes a plurality of underwater optical communication devices including an optical transmission unit that converts an electrical signal into an optical signal and transmits it to the outside, and an optical receiving unit that receives an optical signal from the outside. In addition, the plurality of underwater optical communication devices are spaced apart from each other within a distance that can communicate with each other, and at least one underwater optical communication device can communicate with an external optical transmission / reception device.

The plurality of underwater optical communication devices, arranged in a grid structure of N x M parallel, increases the communication distance between the plurality of arranged underwater optical communication devices through wireless or wired optical communication, and increases the communication distance with the external optical transmission / reception device. Can be increased.

The plurality of underwater optical communication devices may further include a lattice-shaped frame arranged to be spaced apart within a distance capable of communicating with each other, and the separated distances of the plurality of underwater optical communication devices may be determined by turbidity of the water.

The plurality of underwater optical communication devices arranged in the lattice structure of the N x M series are arranged spaced apart at an L interval within a distance capable of optical communication with each other, and the unmanned submersible (AUV (AuV) passing the upper or lower side of the plurality of underwater optical communication devices. The communication distance with an Autonomous Underwater Vehicle (AUV) or manned submersible can be increased to a minimum of (N + 2) x L or (M + 2) x L.

An external power supply unit installed externally to supply power to the plurality of underwater optical communication devices; And an external control unit installed externally to control power and transmission / reception signals provided to the plurality of underwater optical communication devices.

A magnetic location information system indicating location information of the plurality of underwater optical communication devices installed in the water may be further included.

The optical transmission unit of the underwater optical communication device is composed of a light-emitting diode (Light-Emitting Diode, LED) that converts an electrical signal into an optical signal and transmits it to the outside, and the optical receiving unit receives an optical signal from the outside and receives an electrical signal. It consists of a photodiode (photodiode) to convert to, it is possible to amplify the optical signal received through the photodiode.

The underwater optical communication device comprises: a power supply unit configured at a lower side of the main body to supply power; And a control unit configured on an upper side of the power supply unit, and the optical transmission unit and the optical reception unit may be configured on an upper or side surface of the main body.

The underwater optical communication device is made of a water-tight cylindrical shape or a polyhedron shape, and the lower portion is heavier than the upper portion and may be disposed to stand upright at the bottom of the water or underwater.

The optical transmission unit and the optical reception unit of the underwater optical communication device, each of which is configured on the upper portion of the main body, may be configured alternately along the upper circumference of the main body.

The optical transmission unit of the underwater optical communication device is composed of three or four along the upper circumference of the body in the shape of a cylinder or polyhedron to form 120 or 90 degrees to each other based on the center, and the optical receiver is a cylindrical or polyhedron Three or four along the upper circumference of the body of the shape may be configured to form 120 or 90 degrees to each other based on the center.

The plurality of underwater optical communication devices is composed of at least two or more, and the plurality of underwater optical communication devices are connected to each other by optical fibers to enable communication at a long distance according to the length of the optical fibers.

According to the embodiments, by arranging an underwater optical communication device integrally configured with an optical transmitting unit and an optical receiving unit in a lattice structure in parallel in a hand, it is possible to increase the distance between underwater optical communication devices having a communication distance within 200 m to a long distance, as well as external optical. It is possible to provide an apparatus for increasing the communication distance between the underwater optical communication devices, which can also increase the communication distance to the transceiver.

In addition, according to the embodiments, by arranging the underwater optical communication device in which the optical transmitting unit and the optical receiving unit are integrally arranged in a lattice structure in parallel in water, it is possible not only to obtain a connection effect between a plurality of underwater optical communication devices but also to increase a communication distance As it is easy to install in the water, which is difficult to install, it can increase the communication distance.

1 is a view schematically showing a device for increasing a communication distance between underwater optical communication devices according to an embodiment.
2 is a view for explaining a control structure of a device for increasing the communication distance between the underwater optical communication device 100 according to an embodiment.
3 is a view showing an example of an underwater optical communication device according to an embodiment.
4 is a view schematically showing the structure of an underwater optical communication device according to an embodiment.
5 is a view for explaining an arrangement of an optical transmitting unit and an optical receiving unit of an underwater optical communication device according to an embodiment.

Hereinafter, embodiments will be described with reference to the accompanying drawings. However, the described embodiments may be modified in various other forms, and the scope of the present invention is not limited by the embodiments described below. In addition, various embodiments are provided to more fully describe the present invention to those skilled in the art. The shape and size of elements in the drawings may be exaggerated for a more clear description.

In the case of communication using light underwater, there is a disadvantage that it is high speed, but the distance is short. The following embodiments are directed to a structure capable of greatly increasing the optical communication distance by configuring an array of optical transceivers capable of wirelessly communicating light underwater.

The following embodiments relate to a device for increasing a communication distance between underwater optical communication devices, by arranging an underwater optical communication device in which a light transmitting unit and an optical receiving unit are integrally arranged in a lattice structure in parallel in water, underwater optical communication having a communication distance within 200 m. Not only can the distance between devices be increased to a long distance, but also the communication distance with an external optical transmission / reception device can be increased.

1 is a view schematically showing a device for increasing a communication distance between underwater optical communication devices according to an embodiment.

Referring to FIG. 1, a device for increasing a communication distance between underwater optical communication devices 100 according to an embodiment may include a plurality of underwater optical communication devices 100. According to an embodiment, an apparatus for increasing the communication distance between the underwater optical communication devices 100 may further include a frame, an external power supply unit, an external control unit, and a magnetic location information system.

The plurality of underwater optical communication devices 100 may include an optical transmitter that converts an electrical signal into an optical signal and transmits it to the outside, and an optical receiver that receives the optical signal from the outside. Here, the underwater optical communication device 100 is made of a water-tight cylindrical shape or a polyhedral shape, and the lower portion is heavier than the upper portion, and may be arranged to stand upright at the bottom of the water or underwater. The plurality of underwater optical communication devices 100 may be disposed in the underwater 10 or at the bottom of the underwater 10.

For example, the light transmitting unit may be composed of a light-emitting diode (LED) that converts an electrical signal into an optical signal and transmits it to the outside, and the light receiving unit receives a light signal from the outside and converts it into an electrical signal. photodiode) and amplify the optical signal received through the photodiode.

The light transmitting unit and the light receiving unit may be configured at an upper or side portion of the main body.

For example, one or more light transmitting units and one light receiving unit may be configured on an upper portion of the main body, and when a plurality of components are configured, they may be alternately configured along an upper circumference of the main body. More specifically, the light transmitting unit may be composed of three or four along the upper circumference of the body of the cylindrical or polyhedral shape to make 120 or 90 degrees to each other based on the center, and the light receiving unit of the cylindrical or polyhedral shaped body It is composed of three or four along the upper circumference and configured to form 120 degrees or 90 degrees to each other based on the center, so that communication is easily possible regardless of the direction between the optical communication devices.

In addition, the underwater optical communication device 100 may further include a power source configured to supply power to the lower side of the main body, and a control unit configured to the upper side of the power source.

The plurality of underwater optical communication devices 100 are arranged to be spaced apart from each other within a distance capable of communicating with each other, and are capable of communicating with the external optical transmission / reception device 20 by at least one underwater optical communication device 100.

Moreover, the plurality of underwater optical communication devices 100 are arranged in a grid structure 1 of N x M series in parallel, thereby performing wireless communication, wired communication, wireless optical communication, and wired optical communication between the plurality of underwater optical communication devices 100 arranged. The communication distance may be increased through at least one method, and the communication distance with the external optical transmission / reception device 20 may also be increased.

At this time, the plurality of underwater optical communication devices may further include a grid-like frame for arranging spaced apart within a distance capable of communicating with each other. The frame of the lattice structure can be formed in the water or in the bottom of the water, and the space can be maintained and fixed by fixing the plurality of underwater optical communication devices 100 to the frame.

Preferably, the plurality of underwater optical communication devices 100 are arranged to be spaced apart from each other within a distance capable of optical communication with each other by wireless optical communication. At this time, the wireless optical communication can communicate by using light as a transmission medium in free space without using optical fibers.

Further, the plurality of underwater optical communication devices 100 may be arranged to be spaced apart from each other within a distance capable of optical communication with each other by wired optical communication through optical fibers. More specifically, the plurality of underwater optical communication devices 100 are composed of at least two or more, and the plurality of underwater optical communication devices 100 are connected to each other by optical fibers and may be configured to be able to communicate at long distances depending on the length of the optical fibers. Within the same height, the plurality of underwater optical communication devices 100 may increase the communication distance as long as the length of the optical fibers to be connected, so that the communication distance may increase to 5 km or more without a repeater. In addition, the communication between the plurality of underwater optical communication devices 100 does not connect a communication device, and a connection effect can be obtained by simply placing another underwater optical communication device 100 within a communication distance of the underwater optical communication device 100. In this way, the plurality of underwater optical communication devices 100 can increase the communication distance, and thus can be easily installed in the underwater 10, which is difficult to install, and can increase the communication distance.

The plurality of underwater optical communication devices 100 arranged in N x M parallel and parallel lattice structures 1 are spaced apart from each other within a distance capable of optical communication, and the spaced distance may be determined by the turbidity of the underwater 10. The communication distance between the plurality of underwater optical communication devices 100 composed of optical transmission and optical reception devices in the ocean or underwater 10 is less than 200 m in a place where turbidity is low and within 10 m in a place where turbidity is high, but communication speed is fast. There are restrictions. Accordingly, the distances between the plurality of underwater optical communication devices 100 may be set within a maximum of 200 m to 10 m depending on turbidity.

In addition, the plurality of underwater optical communication devices 100 arranged in N x M parallel parallel lattice structures 1 are spaced apart at L intervals within a distance capable of optical communication with each other, or an upper side of the plurality of underwater optical communication devices 100 or The communication distance with an unmanned submersible (AUV) or manned submersible passing through the lower side may be increased to a minimum of (N + 2) x L or (M + 2) x L. Here, the unmanned submersible (AUV) or manned submersible may be included in the external light transmitting and receiving device 20 described above. On the other hand, the external optical transmission / reception device 20 may be a target that is moved or fixed on the surface of the water or underwater 10, such as an unmanned submersible (AUV) and a manned submersible, as well as a plurality of underwater optical communication devices 100 and a ship capable of optical communication. In addition, it may be a moving object outside the water or a fixed object.

Hereinafter, a device for increasing a communication distance between the underwater optical communication devices 100 according to an embodiment will be described in more detail.

2 is a view for explaining a control structure of a device for increasing the communication distance between the underwater optical communication device 100 according to an embodiment.

Referring to FIG. 2, an apparatus for increasing the communication distance between the underwater optical communication apparatuses 100 according to an embodiment may include a plurality of underwater optical communication apparatuses 100, and the external power supply unit 300 may be external according to an embodiment. The control unit 200 may further include a magnetic location information system.

The plurality of underwater optical communication devices 100 may be integrally configured with an optical transmitting unit and an optical receiving unit, for example, may include one transmitting LED and one receiving photodiode, and may include a device for amplifying a received signal. . In this case, a photodiode for reception may be used to amplify the received signal. In addition, a plurality of optical transmitters and optical receivers may be configured.

In particular, the plurality of underwater optical communication devices 100 are arranged in a grid structure (1) of N x M series in parallel, thereby performing wireless communication, wired communication, wireless optical communication, and wired optical communication between the plurality of underwater optical communication devices 100 arranged. The communication distance may be increased through at least one, and the communication distance with the external optical transmission / reception device 20 may also be increased. Preferably, the plurality of underwater optical communication devices 100 are arranged to be spaced apart from each other within a distance capable of optical communication with each other by wireless optical communication.

At this time, by constructing a frame of a lattice structure on the water or on the bottom of the water, and fixing the plurality of underwater optical communication devices 100 to the frame, the plurality of underwater optical communication devices can be placed and fixed spaced apart within a distance that can communicate with each other underwater. have. The external control unit 200 may be installed outside to control power to be supplied to the plurality of underwater optical communication devices 100, and to control the transmission and reception signals of the plurality of underwater optical communication devices 100. Here, the external control unit 200 is connected to one of the plurality of underwater optical communication devices 100 arranged in N x M parallel parallel grid structure 1 to control the transmission and reception signals of the plurality of underwater optical communication devices 100. You can.

The external power supply unit 300 may be installed outside to supply power to the plurality of underwater optical communication devices 100. That is, the external power supply unit 300 may supply power to the plurality of underwater optical communication devices 100 under the control of the external control unit 200. At this time, the external power supply unit 300 is connected to one of the plurality of underwater optical communication devices 100 arranged in N x M parallel and parallel grid structures 1 to supply power to the plurality of underwater optical communication devices 100. have. For example, the external power supply unit 300 may be configured with an external battery.

Here, a power line for exchanging power and communication signals to and from a plurality of underwater optical communication devices 100 arranged in N x M series parallel grid structures 1 may be configured.

In addition, the magnetic location information system may indicate location information of a plurality of underwater optical communication devices 100 installed outside and installed in the underwater 10. For example, the magnetic location information system may be a Global Positioning System (GPS), and is an automatic location tracking system using satellites. ) Location information automatically.

In this way, a plurality of underwater optical communication devices are arranged in a grid structure at a distance capable of optical communication with each other to form one communication device, so that the distance between the underwater optical communication devices having a communication distance within 200 m can be increased to a long distance as well as external light. The communication distance with the transceiver can also be increased.

A method of increasing the communication distance between the underwater optical communication devices according to an embodiment using a device for increasing the communication distance between the underwater optical communication devices according to one embodiment will be briefly described below.

A plurality of underwater optical communication device 100 is integrally composed of the optical transmitting unit and the optical receiving unit is connected to each other by at least one of wireless communication, wired communication, wireless optical communication and wired optical communication, and a plurality of underwater optical communication device 100 It may be made by including the step of communicating with the external optical transmission and reception device 20 by at least one of the underwater optical communication device 100.

In addition, the external control unit 200 may further include the step of supplying power from the external power supply unit 300 to at least one or more of the plurality of underwater optical communication device 100.

Also, the method may further include transmitting a transmission signal to at least one of the plurality of underwater optical communication devices 100 by the external control unit 200 or receiving a received signal from the underwater optical communication device 100.

At this time, by arranging the underwater optical communication device 100 integrally configured with the optical transmitting unit and the optical receiving unit in a lattice structure 1 in series and parallel to the underwater 10, the distance between the underwater optical communication devices 100 having a communication distance of 200 m or less. Not only can be increased to a long distance, but also the communication distance with the external optical transmission / reception device 20 can be increased. In addition, it is possible not only to obtain a connection effect between the plurality of underwater optical communication devices 100, but also to increase the communication distance, so it can be easily installed in the underwater 10, which is difficult to install.

Hereinafter, the underwater optical communication device 100 will be described in more detail.

3 is a view showing an example of an underwater optical communication device according to an embodiment.

Referring to FIG. 3, a side view of the underwater optical communication device 100 according to an embodiment is illustrated, and the underwater optical communication device 100 may be formed in a cylindrical or polyhedral shape. Here, the underwater optical communication device 100 may be formed in various shapes such as a polyhedron shape as well as a cylindrical or polyhedron shape.

The underwater optical communication device 100 may include a main body 101 and a head portion 102.

The main body 101 may be formed in a watertight cylindrical shape or a polyhedron shape, and in particular, a power source such as a relatively heavy battery may be configured at the bottom, and a control unit or the like may be configured at the upper side of the power source.

A relatively light optical transmission unit and an optical reception unit may be configured in the head unit 102 configured at the upper end of the main body 101. In this way, the underwater optical communication device 100 may be disposed upright, similar to a pot, at the bottom of the water or underwater by being configured with a lower portion than the upper portion.

For example, a plurality of LEDs for transmission and a plurality of photodiodes for reception may be configured along the circumference of the upper side of the head portion 102. In particular, three or four LEDs may be configured to form an angle of 120 degrees or 90 degrees between the upper sides of the underwater optical communication device 100, and three or four photodiodes in the space between the LEDs may indicate the upper sides. Accordingly, it may be configured to achieve a 120-degree or 90-degree angle. Meanwhile, although three or four LEDs and photodiodes are described as an example, the number of LEDs and photodiodes is not limited thereto, and may be changed to one or more according to embodiments.

4 is a view schematically showing the structure of an underwater optical communication device according to an embodiment.

Referring to FIG. 4, the underwater optical communication device 100 according to an embodiment may include a power supply unit 110, a control unit 120, an optical transmission unit 130, and an optical reception unit 140.

The power unit 110, the control unit 120, the light transmitting unit 130, and the light receiving unit 140 may be accommodated inside the main body of the underwater optical communication device 100, and to the bottom of the water or underwater for optical communication. Can be deployed.

As described above, the main body may be formed in a watertight cylindrical shape or a polyhedron shape, and in particular, the lower portion where the power supply unit 110 is configured is heavier than the upper portion where the optical transmission unit 130 and the optical reception unit 140 are constructed, underwater or underwater. It can be placed upright at the bottom of the.

The power supply unit 110 is configured on the lower side of the main body to supply power. For example, the power supply unit 110 may be configured with a battery that can supply power to the light transmission unit 130, the light reception unit 140, and the control unit 120.

In addition, the control unit 120 may be configured on the upper side of the power supply unit 110, and may control the light transmission unit 130 and the light reception unit 140. For example, the control unit 120 may allow optical communication from the optical transmission unit 130 to another optical reception unit 140 through a control signal, and the control unit 120 also controls the signal received from the optical reception unit 140. Can be changed to

The optical transmission unit 130 may be configured in an upper or side portion of the main body to convert an electrical signal into an optical signal and transmit it to the outside.

For example, the light transmission unit 130 may be formed of a light-emitting diode (LED) that converts an electrical signal into an optical signal and transmits it to the outside.

The LED used as the light transmitting unit 130 can communicate only up to the reach of the light source, so it has high security, is harmless to the human body, and has no restrictions on the band. In addition, it has low power consumption, long life, and eco-friendly characteristics compared to other light sources.

A plurality of optical transmission units 130 are respectively formed on the upper portion of the main body, and may be alternately configured along the upper circumference of the main body.

The light receiving unit 140 may be configured at an upper or side portion of the main body to receive an optical signal from the outside, for example, to detect LED light received from an external device.

For example, the light receiving unit 140 may be formed of a photodiode that receives an optical signal from the outside and converts it into an electrical signal. Here, a photodiode is a type of optical sensor that converts light energy into electrical energy. The photodiode has a fast response speed, a wide sensitivity and wavelength, and good linearity of the photocurrent.

A plurality of light receiving units 140 are respectively formed on the upper portion of the main body, and may be alternately configured along the upper circumference of the main body.

In one example, the body is made of a cylindrical or polyhedral shape, the light transmitting unit 130 is composed of three along the upper circumference of the cylindrical or polyhedral body to form 120 degrees of each other relative to the center, the optical receiving unit 140 It is composed of three along the upper circumference of the body of a cylindrical or polyhedral shape and may be configured to form 120 degrees with respect to each other based on the center.

As another example, the body is made of a cylindrical or polyhedral shape, the light transmitting unit 130 is composed of four along the upper circumference of the cylindrical or polyhedral shaped body to form 90 degrees from each other relative to the center, the optical receiving unit 140 It is composed of four along the upper circumference of the body of a cylindrical or polyhedral shape and may be configured to form 90 degrees with respect to each other based on the center.

Meanwhile, an optical fiber may be further included to connect the underwater optical communication device 100. In this case, the underwater optical communication device 100 is composed of at least two or more and is connected to each other by optical fibers to enable communication at long distances depending on the length of the optical fibers. At this time, optical communication is a communication method of exchanging light signals through an optical fiber consisting of a hollow glass (core) having a large refractive index and an outer glass (cladding) having a small refractive index. The optical transmission unit 130 of the optical communication converts the electrical signal into a light signal and then transmits it through an optical fiber, and the optical communication unit 140 of the optical communication can convert the light signal back into an electrical signal. A laser diode or a light emitting diode can be used to convert the electrical signal into a light signal, and a photodiode or a photodiode can be used to convert the light signal into an electrical signal.

This optical communication has several advantages over electrical communication that uses electrical wires to send and receive electrical signals. Since there is little interference from external electromagnetic waves, it is economical because it can transmit distances of tens to hundreds of kilometers without a repeater. In addition, it is impossible to wiretap from the outside, and it is called an optical cable by bundling several strands of optical fibers, and through this optical cable, a large amount of information can be exchanged simultaneously.

5 is a view for explaining an arrangement of an optical transmitting unit and an optical receiving unit of an underwater optical communication device according to an embodiment.

More specifically, FIG. 5A shows an arrangement of an underwater optical communication device having three optical transmitters and an optical receiver, respectively, according to an embodiment. And Fig. 5b shows an arrangement of an underwater optical communication device having four optical transmitting units and an optical receiving unit, respectively, according to an embodiment.

5A and 5B show a plurality of underwater optical communication devices connected by optical fibers, and show one optical communication module connecting distances between the plurality of optical communication devices 100a and 100b by optical fibers. Here, each underwater optical communication device (100a, 100b) may include an underwater optical communication device or an underwater optical communication device according to an embodiment described in Figures 1 to 4. Hereinafter, for a more detailed description, different underwater optical communication devices will be described separately as the first underwater optical communication device 100a and the second underwater optical communication device 100b.

In the structure of the underwater optical communication devices 100a and 100b, a power source such as a heavy battery or the like is formed at the lower portion of the cylindrical or polyhedron, and the optical transmitters 130a and 130b and the optical receivers 140a and 140b are disposed at the upper portion in the cylinder or polyhedron. Can be configured. In this case, the light transmitting units 130a and 130b may be composed of LEDs, and the light receiving units 140a and 140b may be composed of photodiodes.

As shown in Figure 5a, three LEDs (130a, 130b) on the upper side of the cylinder or polyhedron may be arranged to form 120 degrees with respect to the center, three photodiodes (140a, 140b) with reference to the center It is arranged to achieve 120 degrees, but may be disposed between the LEDs 130a and 130b.

In addition, as shown in Figure 5b, four LEDs (130a, 130b) on the upper side of the cylinder or polyhedron may be arranged to form 90 degrees relative to the center, the four photodiodes (140a, 140b) is the center It is arranged to achieve 90 degrees based on, but may be disposed between the LED (130a, 130b).

As described above, the plurality of LEDs 130a and 130b and the photodiodes 140a and 140b are alternately configured to facilitate communication regardless of the direction between the underwater optical communication devices.

The device described above may be implemented with hardware components, software components, and / or combinations of hardware components and software components. For example, the devices and components described in the embodiments include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor (micro signal processor), a microcomputer, a field programmable array (FPA), It may be implemented using one or more general purpose computers or special purpose computers, such as a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions. The processing device may run an operating system (OS) and one or more software applications running on the operating system. In addition, the processing device may access, store, manipulate, process, and generate data in response to the execution of the software. For convenience of understanding, a processing device may be described as one being used, but a person having ordinary skill in the art, the processing device may include a plurality of processing elements and / or a plurality of types of processing elements. It can be seen that may include. For example, a processing device may include a plurality of processors or a processor and a controller. In addition, other processing configurations, such as parallel processors, are possible.

The software may include a computer program, code, instruction, or a combination of one or more of these, and configure the processing device to operate as desired, or process independently or collectively You can command the device. Software and / or data may be interpreted by a processing device, or to provide instructions or data to a processing device, of any type of machine, component, physical device, virtual equipment, computer storage medium or device. Can be embodied in The software may be distributed on networked computer systems, and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded on a computer readable medium. The computer-readable medium may include program instructions, data files, data structures, or the like alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiments or may be known and usable by those skilled in computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tapes, optical media such as CD-ROMs, DVDs, and magnetic media such as floptical disks. -Hardware devices specially configured to store and execute program instructions such as magneto-optical media, and ROM, RAM, flash memory, and the like. Examples of program instructions include high-level language code that can be executed by a computer using an interpreter, etc., as well as machine language codes produced by a compiler.

As described above, although the embodiments have been described by a limited embodiment and drawings, those skilled in the art can make various modifications and variations from the above description. For example, the described techniques are performed in a different order than the described method, and / or the components of the described system, structure, device, circuit, etc. are combined or combined in a different form from the described method, or other components Alternatively, even if replaced or substituted by equivalents, appropriate results can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (12)

A plurality of underwater optical communication devices comprising an optical transmission unit that converts an electrical signal into an optical signal and transmits it to the outside; And
A grid-like frame for arranging the plurality of underwater optical communication devices within a distance that can communicate with each other underwater
Including,
The underwater optical communication device,
It is made of a water-tight cylindrical or polyhedral body, and the lower portion is heavier than the upper portion, and is arranged to stand upright at the bottom of the water or underwater, and the optical transmitting unit and the optical receiving unit of the underwater optical communication device are respectively a plurality of upper portions of the main body. It is composed of dogs, alternately along the upper circumference of the main body,
The optical transmission unit of the underwater optical communication device is composed of three or four along the upper circumference of the body in the shape of a cylinder or polyhedron to form 120 or 90 degrees to each other based on the center, and the optical receiver is a cylindrical or polyhedron It is composed of three or four along the upper circumference of the body of the shape to form 120 or 90 degrees to each other based on the center,
The plurality of underwater optical communication device,
Arranged spaced apart from each other within a distance capable of communicating with each other, and capable of communicating with an external optical transmission / reception device by at least one underwater optical communication device, arranged in a grid structure of N x M serial parallel, and arranged between the plurality of underwater optical communication devices The communication distance is increased through wireless or wired optical communication, the communication distance with the external optical transmission / reception device is increased, and the plurality of underwater optical communication devices arranged in a grid structure of the N x M series are L spaced within a distance capable of optical communication with each other. Spaced apart, the communication distance with an unmanned submarine (AUV (Autonomous Underwater Vehicle, AUV) or manned submersible) passing through the upper or lower side of the plurality of underwater optical communication devices is at least (N + 2) x L or (M + 2) x Stretching to L
Device for increasing the communication distance between the underwater optical communication device, characterized in that. delete According to claim 1,
The distance between the plurality of underwater optical communication devices is determined by the turbidity of the underwater
Device for increasing the communication distance between the underwater optical communication device, characterized in that. delete According to claim 1,
An external power supply unit installed externally to supply power to the plurality of underwater optical communication devices; And
An external control unit installed externally to control power and transmission / reception signals provided to the plurality of underwater optical communication devices
Further comprising, a device for increasing the communication distance between the underwater optical communication device. According to claim 1,
A magnetic location information system showing location information of the plurality of underwater optical communication devices installed underwater
Further comprising, a device for increasing the communication distance between the underwater optical communication device. According to claim 1,
The optical transmission unit of the underwater optical communication device,
It consists of a light-emitting diode (LED) that converts an electrical signal into an optical signal and transmits it to the outside.
The light receiving unit,
It consists of a photodiode that receives an optical signal from the outside and converts it into an electrical signal, and amplifies the optical signal received through the photodiode.
Device for increasing the communication distance between the underwater optical communication device, characterized in that. According to claim 1,
The underwater optical communication device,
It is configured on the lower side of the main body to supply power; And
Control unit configured on the upper side of the power supply unit
Further comprising,
The optical transmitting unit and the optical receiving unit,
Consists of the top or side of the body
Device for increasing the communication distance between the underwater optical communication device, characterized in that. delete delete delete According to claim 1,
The plurality of underwater optical communication device,
It is composed of at least two or more, and the plurality of underwater optical communication devices are connected to each other by optical fibers so that they can communicate at long distances according to the length of the optical fibers.
Device for increasing the communication distance between the underwater optical communication device, characterized in that.

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