JPH11355219A - Underwater communication, data transmission method and air layer forming material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable communication and data transmission with equipment moving underwater to be performed over a wide range without using an obstructive cable for a long distance underwater. SOLUTION: An air layer forming member 1A is installed in the water, mobile communication equipment 3A and fixed communication equipment 4 are provided in the air layer forming member 1A, and communication is performed by a cable 5 with the ground, water surface and underwater. In this case, the mobile communication equipment 3A is connected to submarine equipment 2A by a cable 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for transmitting data from underwater equipment to the ground, above the water, into the water, data transmission, and a gas layer forming material used in the method.

[0002]

2. Description of the Related Art Communication between underwater equipment and the ground, above the water, into the water, and transmission and reception of data are performed because radio waves do not pass.
Connect with a cable, (2) Extend the antenna to the water,
(3) The antenna was floated by a buoy, and a cable was connected from the surface equipment to the buoy.

[0003]

The cable connection of (1) is not practical over long distances due to the problem of cable processing. When the antenna of (2) is extended to the surface of the water, the depth is limited. Further, when the buoy (3) is used, the depth is similarly limited, and a great resistance is caused when the equipment is moved underwater. Radio does not pass.

[0004] The present invention can solve not only the problems (1) to (3) but also a method of transmitting and receiving data from underwater equipment which can also use wireless communication to ground, water, and underwater, and to the method. The purpose of the present invention is to provide an air layer forming material to be used.

[0005]

According to the present invention, an air layer is formed in water, and a mobile communication device is provided in the air layer to communicate with the ground, on the water, and underwater by a cable, and the mobile communication device is connected to the mobile communication device. Connect the underwater equipment with a cable.

The communication between the mobile communication device in the air layer and the underwater device may be communication using infrared light, laser, or other light instead of a cable.

[0007] The mobile communication device in the air layer can be of a trolley wire type or a leaky cable type in addition to the wireless transmission type.

The gas layer forming material may have a predetermined length, a U-shaped cross section or a U-shaped cross section, and may be formed of an open cross section material having both ends closed.

At this time, when optical communication is used for communication between the mobile communication device in the gas layer and the underwater device, the gas layer forming material is entirely or partially made of a light transmitting material. . In addition, the gas layer forming material has a predetermined length and is made of a material having a closed cross-section with both ends closed, such as a cross-section of a circle or a mouth, and a material entirely or partially made of a material that transmits light is also adopted. can do.

[0010] In order to eliminate the influence of the reflected wave, a radio wave absorbing material is preferably applied to the gas layer forming material.

When a device that moves in the water and a mobile communication device in the underwater layer are connected by wire, the movable range of the underwater device from the position of the mobile communication device can be the movable area of the underwater device.

[0012] When communication is performed by infrared or laser light from a device moving in water to a mobile communication device in the underwater layer, the movable range of the underwater device from the position of the mobile communication device is defined as the movable area of the underwater device. can do.

In the underwater gas layer, since communication is performed by a method such as wireless communication, trolley, and leaky cable capable of long-distance communication, a wide range of communication can be performed without using a cable that disturbs underwater for a long distance.

[0014]

1 to 4 show a first embodiment of the present invention.
As shown in FIG. 4, the underwater gas layer is formed by open-section members 1A and 1B which are closed on both ends with an end closing member 1B-1 and placed prone in water as shown in FIG. Its cross-sectional shape is
The U shape shown in FIGS. 1 to 3 or the U shape shown in FIG. 4 can be used.

In FIG. 1, S-1 indicates a water bottom on which the gas layer forming material 1A is installed, S-2 indicates a water surface, and S-3 indicates a land.

In the gas layer forming material 1A, the mobile communication equipment 3A
And a fixed communication device 4 are provided.
Is connected to the land S-3 by a cable 5. The mobile communication device 3A and the underwater device 2A are connected to the underwater device 2A by pulling out the cable 6 from the mobile communication device 3A through the opening of the gas layer forming material 1A having an open cross section.

The mobile communication device 3A and the fixed communication device 4
As shown in FIG. 2, the mobile communication device 3A is restrained by a side rail 7, and the buoy 8 restrains the mobile communication device 3A in the example of FIG.

The intra-stratification communication is based on the wireless transmission method 3 shown in FIG.
In addition to A, a leaky cable system 3B shown in FIG. 8 and a trolley wire system 3C shown in FIG. 9 are employed.

The communication between the mobile communication device 3A and the underwater device 2A is performed not only by a cable but also by a material that transmits light through the whole or a part of the gas layer forming materials 1A and 1B that are open-section materials.
For example, it is made of glass, acrylic, or the like, and performs optical communication between the in-gas layer mobile communication device 3A and the underwater device 2B.

As shown in FIG. 2, when the reflected wave has an effect, the gas layer forming material 1A is used to eliminate the effect of the reflected wave.
The radio wave absorbing material 1A-2 is used for the inner lining. Conversely, when the inside of the gas layer forming material 1A functions as a waveguide due to the relationship between the wavelength and the cross section, a material close to a perfect conductor is internally bonded.

FIGS. 5 and 6 show a second embodiment of the present invention. The gas layer is formed by closed cross-section members 1C and 1D which are installed in water with both ends closed. The cross-sectional shape is shown in FIG.
The shape may be a letter shape or a square shape shown in FIG.

As the communication method in the air layer forming materials 1C and 1D, a wireless, trolley, and leaky cable system is adopted as in the first embodiment.

The communication between the intra-gas layer mobile communication device 3A and the underwater device 2B is performed by the gas layer forming materials 1C, 1
All or a part of D is made of a material that transmits light, for example, glass, acrylic, or the like.
And optical communication with the underwater equipment 2B.

[0024]

According to the present invention described above, communication and data transmission with a device moving underwater can be performed over a wide range without using a cable that hinders underwater for a long distance.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an underwater communication and data transmission method according to a first embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of FIG.

FIG. 3 is a longitudinal sectional view of another example.

FIG. 4 is a perspective view of another example of the gas layer forming material.

FIG. 5 is a perspective view showing an underwater communication and data transmission method according to a second embodiment of the present invention.

FIG. 6 is a perspective view of another example.

FIG. 7 is a diagram showing a wireless transmission method in intra-spatial communication.

FIG. 8 is a diagram showing a leaky cable system.

FIG. 9 is a diagram showing a trolley wire system.

[Explanation of symbols]

 1A, 1B 1C, 1D: Air layer forming material 2A, 2B: Underwater equipment 3A, 3B, 3C: Mobile communication equipment 4: Fixed communication equipment 5: Cable 6: Cable 7 ... Guide rail 8 ... Buoy

Claims (9)

[Claims] An air layer is formed in water, and a mobile communication device is provided in the air layer to communicate with the ground, on the water, and underwater by a cable, and the mobile communication device and the underwater device are connected by a cable. Underwater communication and data transmission method. 2. A method for forming a gas layer in water, providing a mobile communication device in the gas layer, communicating with the ground, above the water, and underwater by a cable, and communicating light with the mobile communication device and the underwater device. Underwater communication and data transmission method. 3. The underwater communication and data transmission method according to claim 1, wherein the mobile communication device in the gas layer is of a wireless transmission system. 4. The underwater communication and data transmission method according to claim 1, wherein the mobile communication device in the gas layer is a trolley wire type. 5. The underwater communication and data transmission method according to claim 1, wherein the mobile communication device in the gas layer is of a leaky cable type. 6. The underwater communication and data communication device according to claim 6, wherein the gas layer forming material has a predetermined length and is made of an open cross-section material having both ends thereof closed in a U-shape or a U-shape. Gas layer forming material used for transmission. 7. The gas layer forming material is entirely or partially made of a material that transmits light.
A gas layer forming material used for underwater communication and data transmission according to item 1. 8. The gas layer forming material has a predetermined length and has a cross section
A gas-phase forming material used for underwater communication and data transmission, which is formed of a closed or cross-sectional material that is closed or closed at both ends, and is entirely or partially made of a material that transmits light. . 9. The underwater communication according to claim 6, wherein a radio wave absorbing material is internally attached.
Gas layer forming material used for data transmission.