CN105572807A - Underwater wet-plug optical communication interface device and optical communication method thereof - Google Patents
Underwater wet-plug optical communication interface device and optical communication method thereof Download PDFInfo
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- CN105572807A CN105572807A CN201610089051.5A CN201610089051A CN105572807A CN 105572807 A CN105572807 A CN 105572807A CN 201610089051 A CN201610089051 A CN 201610089051A CN 105572807 A CN105572807 A CN 105572807A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/32—Optical coupling means having lens focusing means positioned between opposed fibre ends
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- General Physics & Mathematics (AREA)
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Abstract
The invention relates to the field of optical communication interfaces and aims at providing an underwater wet-plug optical communication interface device and an optical communication method thereof. The underwater wet-plug optical communication interface device comprises a plug and a socket, wherein the plug comprises a transmitting-end optical fiber and a transmitting-end lens B; and the socket comprises a receiving-end lens and a receiving-end optical fiber. In the optical communication method based on the underwater wet-plug optical communication interface device, the transmitting-end optical fiber of the plug is connected with a communication signal transmitting end, and the receiving-end optical fiber of the socket is connected with a communication signal receiving end; and during optical communication, mutual contact between the mirror surfaces of the transmitting-end lens B and the receiving-end lens or 0-1m spacing between the mirror surfaces is guaranteed, and a communication link is established to realize optical communication. According to the device and method provided by the invention, the working efficiency and reliability are greatly improved, the problems of short service life and high production cost of current underwater wet-plug optical fiber communication interfaces are solved, and a simpler and more convenient and reliable method is provided for underwater optical communication.
Description
Technical field
The invention relates to submarine optical communication interface field, the optical communication interface device of particularly a kind of wet plug under water and optical communication method thereof.
Background technology
Along with the mankind's deepening continuously to hydrospace detection, underwater detectoscope, underwater robot, marine environmental monitoring platform participates in the scientific research activity of ocean more and more under water.Various detecting devices communication interface needs to carry out repeatability plug, due to working environment special under water, the plug carrying out communication port is under water a very complicated job, except bearing hyperbaric environment under water, the leakproofness of signal equipment goes wrong and the fault of whole equipment will be caused even to scrap.
In existing underwater communication, utilizing optical fiber or optical cable to carry out communicating is the focus of research, because optical communication high bandwidth, anti-interference are good, and the following main flow strength that also will become in the communication technology.And be mounted with on the underwater detection equipment of fiber optic data communication interface, ocean environment monitoring platform, seabed observation network node at some and complete fiber optic data communication interface docking, set up communication link and there is certain difficulty.In existing technology, a lot of wet under water connecting-disconnecting interfaces have employed very complicated physical construction, and when working under water, interface two ends need accurate connection, need very large contact engaging and separating force, and the success ratio of communication interface docking is extremely low.Secondly optical fiber interface is very little, even if use servicing unit to be also difficult to the accurate docking realizing optical fiber interface under water.
In sum, realize the docking of underwater optical fibre interface, set up communication link, existing technology too complex, the reusable rate of device is low, and security is low, and involves great expense.
Summary of the invention
Fundamental purpose of the present invention is to overcome deficiency of the prior art, the device providing a kind of underwater optical fibre interface to dock and communication means thereof.For solving the problems of the technologies described above, solution of the present invention is:
A kind of optical communication interface device of wet plug is under water provided, comprises plug and socket, described plug comprise connect successively transmitting terminal optical fiber, transmitting terminal gradient-index lens, transmitting terminal lens A, vacuum tube A, vacuum tube B and transmitting terminal lens B; Described transmitting terminal gradient-index lens is used for being drawn by the light in transmitting terminal optical fiber and collimating, and becomes directional light; Described transmitting terminal lens A, vacuum tube A, vacuum tube B, transmitting terminal lens B form a collimating and beam expanding system, and the light for being penetrated by transmitting terminal gradient-index lens carries out collimating, expanding, and becomes the directional light that light beam is wider, hot spot is larger;
Described socket comprises the receiving end lens, vacuum tube C, receiving end gradient-index lens, the receiving end optical fiber that connect successively; Described receiving end lens are used for the light inciding socket to become directional light; Described vacuum tube C is used for as (high-fidelity) optical signal transmission passage; Described receiving end gradient-index lens is used for directional light to be coupled in receiving end optical fiber.
In the present invention, described transmitting terminal gradient-index lens is the optical lens of refractive index radially gradual change.
In the present invention, described transmitting terminal lens A and transmitting terminal lens B adopts convex lens.
In the present invention, described vacuum tube A is connected by spiral mouth with vacuum tube B, by rotation vacuum pipe B, can regulate the distance between transmitting terminal lens A and transmitting terminal lens B.
In the present invention, described receiving end lens adopt convex lens.
In the present invention, described vacuum tube A, vacuum tube B and vacuum tube C are all vacuum tubes of aluminum alloy material.
In the present invention, described receiving end gradient-index lens is the optical lens of refractive index radially gradual change.
In the present invention, described transmitting terminal lens A employing external diameter is 20mm, focal length is the convex lens of 20mm, transmitting terminal lens B employing external diameter is 40mm, focal length is the convex lens of 40mm, and vacuum tube A adopts length to be the vacuum tube of 20mm, and vacuum tube B adopts length to be the vacuum tube of 40m.
A kind of optical communication method based on the described optical communication interface device of wet plug is under water provided, is specially:
The transmitting terminal optical fiber of plug is connected with the transmitting terminal of signal of communication, the receiving end optical fiber of socket is connected with the receiving end of signal of communication; When carrying out optical communication work, namely plug and socket in working order time, ensure the minute surface of transmitting terminal lens B and receiving end lens contact with each other or minute surface at a distance of within 1m;
First light signal in transmitting terminal optical fiber becomes the light beam of collimation by transmitting terminal gradient-index lens, through the collimating and beam expanding system of light beam again by being made up of transmitting terminal lens A, vacuum tube A, vacuum tube B and transmitting terminal lens B of collimation, the hot spot of light beam becomes large, light beam becomes directional light simultaneously, and the light signal realized in former transmitting terminal optical fiber sends with directional light from plug;
When plug and socket is in duty, the receiving end lens that the light signal that plug sends enters socket become directional light, again through vacuum tube C, arrive receiving end gradient-index lens, directional light is coupled in receiving end optical fiber by receiving end gradient-index lens, and then the light signal of transmitting terminal arrives receiving end, completes the foundation of communication link.
Principle of work of the present invention: the present invention utilizes optical principle to expand the light signal in optical fiber, collimate, recycling wireless light communication technology realizes the physical process of communication interface plug.When realizing, the present invention mainly make use of the light in a kind of special gradient-index lens extraction optical fiber, through expanding formation directional light, propagate in the distance that directional light is very short in water, inverse process again through gradient-index lens is coupled in another root optical fiber, so just achieves the underwater connection of optical fiber interface.
Compared with prior art, the invention has the beneficial effects as follows:
The present invention utilizes the light source in special optical device extraction optical fiber innovatively, existing comparatively ripe underwater wireless optical communication technique is utilized to complete the docking of optical fiber interface, the target that optical communication link is set up, the submarine mechanical operating process of complexity is converted into the wireless light communication process comparatively easily realized under water, greatly increase work efficiency, improve reliability, also solve the current wet plug fiber optic data communication interface life-span under water short simultaneously, the problem that manufacturing cost is high, compare that wet connecting-disconnecting interface is more simple for tradition under water for submarine optical communication provides one, convenient, reliable method.
Accompanying drawing explanation
Fig. 1 is the structural representation of plug in the present invention.
Fig. 2 is the structural representation of socket in the present invention.
Fig. 3 is the optical signaling paths figure in embodiment.
Reference numeral in figure is: 1 plug; 2 sockets; 10 transmitting terminal optical fiber; 11 transmitting terminal gradient-index lens; 12 transmitting terminal lens A; 13 vacuum tube A; 14 vacuum tube B; 15 transmitting terminal lens B; 20 receiving end lens; 21 vacuum tube C; 22 receiving end gradient-index lens; 23 receiving end optical fiber.
Embodiment
Below in conjunction with accompanying drawing and embodiment, the present invention is described in further detail:
An optical communication interface device for wet plug, comprises plug 1 and socket 2 under water.
As shown in Figure 1, plug 1 comprise connect successively transmitting terminal optical fiber 10, transmitting terminal gradient-index lens 11, transmitting terminal lens A12, vacuum tube A13, vacuum tube B14 and transmitting terminal lens B15.Transmitting terminal gradient-index lens 11 is the optical lens of one piece of refractive index radially gradual change, for being drawn by the light in transmitting terminal optical fiber 10 and collimating, becomes directional light.Transmitting terminal lens A12 adopts that one piece of external diameter is 20mm, focal length is the convex lens of 20mm, and transmitting terminal lens B15 adopts that one piece of external diameter is 40mm, focal length is the convex lens of 40mm.Vacuum tube A13 employing length is the vacuum tube of the aluminum alloy material of 20mm, and vacuum tube B14 employing length is the vacuum tube of the aluminum alloy material of 40m; Vacuum tube A13 is connected by spiral mouth with vacuum tube B14, by rotation vacuum pipe B14, can regulate the distance between transmitting terminal lens A12 and transmitting terminal lens B15.Transmitting terminal lens A12, vacuum tube A13, vacuum tube B14, transmitting terminal lens B15 form a collimating and beam expanding system, directional light for being penetrated by transmitting terminal gradient-index lens 11 collimates further, expands, and becomes the directional light that light beam is wider, hot spot is larger.
As shown in Figure 2, socket 2 comprises the receiving end lens 20, vacuum tube C21, receiving end gradient-index lens 22, the receiving end optical fiber 23 that connect successively.Described receiving end lens 20 adopt convex lens, for the light inciding socket 2 is become directional light.Described vacuum tube C21 is used for the optical signal transmission passage as high-fidelity.Described receiving end gradient-index lens 22 is the optical lens of refractive index radially gradual change, for being coupled in receiving end optical fiber 23 by directional light.
As shown in Figure 3, a kind of optical communication method based on the described optical communication interface device of wet plug under water, is specially:
The transmitting terminal optical fiber 10 of plug 1 is connected with the transmitting terminal of signal of communication, the receiving end optical fiber 23 of socket 2 is connected with the receiving end of signal of communication; When carrying out optical communication work, namely plug 1 and socket 2 in working order time, ensure the minute surface of transmitting terminal lens B15 and receiving end lens 20 contact with each other or minute surface at a distance of within 1m.
First light signal in transmitting terminal optical fiber 10 becomes directional light by transmitting terminal gradient-index lens 11, through the collimating and beam expanding system of light beam again by being made up of transmitting terminal lens A12, vacuum tube A13, vacuum tube B14 and transmitting terminal lens B15 of collimation, the hot spot of light beam becomes large, light beam becomes directional light simultaneously, the light signal realized in former transmitting terminal optical fiber 10 sends with directional light from plug 1, enters seawater channel.
When plug 1 and socket 2 are in duty, the receiving end lens 20 that the light signal that plug 1 sends enters socket 2 become directional light, again through vacuum tube C21, arrive receiving end gradient-index lens 22, directional light is coupled in receiving end optical fiber 23 by receiving end gradient-index lens 22, and then the light signal of transmitting terminal arrives receiving end, completes the foundation of communication link.
When solving the connection carrying out two optical fiber interfaces under water and meeting difficulty, the present invention achieves with underwater wireless optical communication the object that optical fiber interface connects innovatively, such way uses the old thinking of various complex mechanical equipment less important work when having abandoned traditional underwater optical fibre communication interface plug, not only greatly reduce complexity and the development cost of equipment, and there is better reliability, the repeat usage of equipment is high.
Finally, it should be noted that above what enumerate is only specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, a lot of distortion can also be had.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention, all should think protection scope of the present invention.
Claims (9)
1. an optical communication interface device for wet plug under water, comprises plug and socket, it is characterized in that, described plug comprise connect successively transmitting terminal optical fiber, transmitting terminal gradient-index lens, transmitting terminal lens A, vacuum tube A, vacuum tube B and transmitting terminal lens B; Described transmitting terminal gradient-index lens is used for being drawn by the light in transmitting terminal optical fiber and collimating, and becomes directional light; Described transmitting terminal lens A, vacuum tube A, vacuum tube B, transmitting terminal lens B form a collimating and beam expanding system, and the light for being penetrated by transmitting terminal gradient-index lens carries out collimating, expanding, and becomes the directional light that light beam is wider, hot spot is larger;
Described socket comprises the receiving end lens, vacuum tube C, receiving end gradient-index lens, the receiving end optical fiber that connect successively; Described receiving end lens are used for the light inciding socket to become directional light; Described vacuum tube C is used for as optical signal transmission passage; Described receiving end gradient-index lens is used for directional light to be coupled in receiving end optical fiber.
2. the optical communication interface device of a kind of wet plug under water according to claim 1, is characterized in that, described transmitting terminal gradient-index lens is the optical lens of refractive index radially gradual change.
3. the optical communication interface device of a kind of wet plug under water according to claim 1, it is characterized in that, described transmitting terminal lens A and transmitting terminal lens B adopts convex lens.
4. the optical communication interface device of a kind of wet plug under water according to claim 1, it is characterized in that, described vacuum tube A is connected by spiral mouth with vacuum tube B, by rotation vacuum pipe B, can regulate the distance between transmitting terminal lens A and transmitting terminal lens B.
5. the optical communication interface device of a kind of wet plug under water according to claim 1, it is characterized in that, described receiving end lens adopt convex lens.
6. the optical communication interface device of a kind of wet plug under water according to claim 1, it is characterized in that, described vacuum tube A, vacuum tube B and vacuum tube C are all vacuum tubes of aluminum alloy material.
7. the optical communication interface device of a kind of wet plug under water according to claim 1, is characterized in that, described receiving end gradient-index lens is the optical lens of refractive index radially gradual change.
8. the optical communication interface device of a kind of wet plug under water according to claim 1 to 7 any one, it is characterized in that, described transmitting terminal lens A employing external diameter is 20mm, focal length is the convex lens of 20mm, transmitting terminal lens B employing external diameter is 40mm, focal length is the convex lens of 40mm, vacuum tube A adopts length to be the vacuum tube of 20mm, and vacuum tube B adopts length to be the vacuum tube of 40m.
9., based on an optical communication method for the optical communication interface device of wet plug under water described in claim 1, it is characterized in that, be specially:
The transmitting terminal optical fiber of plug is connected with the transmitting terminal of signal of communication, the receiving end optical fiber of socket is connected with the receiving end of signal of communication; When carrying out optical communication work, namely plug and socket in working order time, ensure the minute surface of transmitting terminal lens B and receiving end lens contact with each other or minute surface at a distance of within 1m;
First light signal in transmitting terminal optical fiber becomes the light beam of collimation by transmitting terminal gradient-index lens, through the collimating and beam expanding system of light beam again by being made up of transmitting terminal lens A, vacuum tube A, vacuum tube B and transmitting terminal lens B of collimation, the hot spot of light beam becomes large, light beam becomes directional light simultaneously, and the light signal realized in former transmitting terminal optical fiber sends with directional light from plug;
When plug and socket is in duty, the receiving end lens that the light signal that plug sends enters socket become directional light, again through vacuum tube C, arrive receiving end gradient-index lens, directional light is coupled in receiving end optical fiber by receiving end gradient-index lens, and then the light signal of transmitting terminal arrives receiving end, completes the foundation of communication link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610089051.5A CN105572807B (en) | 2016-02-17 | 2016-02-17 | A kind of the optical communication interface device and its optical communication method of underwater wet plug |
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| CN201610089051.5A CN105572807B (en) | 2016-02-17 | 2016-02-17 | A kind of the optical communication interface device and its optical communication method of underwater wet plug |
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| CN105572807A true CN105572807A (en) | 2016-05-11 |
| CN105572807B CN105572807B (en) | 2018-10-19 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105933067A (en) * | 2016-05-16 | 2016-09-07 | 浙江大学 | Photoelectric conversion device based on seabed signal transmission |
| CN106707287A (en) * | 2016-12-23 | 2017-05-24 | 浙江大学 | Fish school quantity estimation method based on extended Kalman filtering combined with nearest neighbor clustering algorithm |
| CN107452290A (en) * | 2017-09-15 | 2017-12-08 | 深圳市德彩光电有限公司 | A kind of LED display |
| CN108123753A (en) * | 2017-12-11 | 2018-06-05 | 中国船舶重工集团公司第七0五研究所 | A kind of underwater high-speed radio telecommunicaltion system |
| CN109802264A (en) * | 2019-01-21 | 2019-05-24 | 浙江大学 | A kind of contactless wet plug-in connector of photoelectricity mixing two-way communication |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109802264A (en) * | 2019-01-21 | 2019-05-24 | 浙江大学 | A kind of contactless wet plug-in connector of photoelectricity mixing two-way communication |
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| Publication number | Publication date |
|---|---|
| CN105572807B (en) | 2018-10-19 |
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