CN217985073U - Underwater visible light communication equipment - Google Patents
Underwater visible light communication equipment Download PDFInfo
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- CN217985073U CN217985073U CN202222316091.2U CN202222316091U CN217985073U CN 217985073 U CN217985073 U CN 217985073U CN 202222316091 U CN202222316091 U CN 202222316091U CN 217985073 U CN217985073 U CN 217985073U
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Abstract
The utility model discloses an underwater visible light communication device, which comprises a light emitter and a light receiver, wherein the light emitter and the light receiver respectively comprise a sealing shell, and a light-transmitting cover for visible light to penetrate is fixedly arranged on the sealing shell; the method is characterized in that: the light-transmitting cover is provided with a light-transmitting part and a press-fitting part, the whole light-transmitting part is of a hollow hemispherical structure and protrudes out of the sealing shell, the press-fitting part is formed by extending the edge of the light-transmitting part outwards along the radial direction, the press-fitting part is of a circular structure, the press-fitting part is clamped and fixed between the front end part of the sealing shell and the press-fitting ring, the end surface of the press-fitting part is attached and connected with the front end surface of the sealing shell, and the attached surface which is attached and connected is provided with an annular sealing groove filled with an O-shaped sealing ring; the light emitting unit in the light emitter and the light receiving unit in the light receiver are respectively fixedly arranged inside the hollow hemispherical structure of the light transmission part of the light transmission cover. The utility model has the advantages of can better guarantee smooth realization of optical communication function, assembly efficiency is high.
Description
Technical Field
The utility model belongs to the underwater communication equipment field, concretely relates to visible light communication equipment under water.
Background
The wireless electromagnetic or underwater acoustic communication is applied to underwater scenes, and has obvious defects in the aspects of transmission speed, channel noise, end-to-end data packet transmission rate and the like. However, the advantage of having "transmission window" to blue-green light based on sea water for the LED lamp pearl that utilizes to send blue-green light sends the visible light signal as the transmitting unit, adopts photosensitive element as the receiving unit and carries out the visible light communication under water and become possible.
Compared with wireless electromagnetic or underwater acoustic communication, underwater visible light communication has the advantages of strong information carrying capacity, high frequency, good transmission beam directivity, no occupation of communication frequency band (high security and difficult interception), and the like, can realize real-time high-speed wireless transmission of underwater large-capacity data, and has more outstanding underwater application advantages.
The prior art publication No. CN209881793U discloses an underwater visible light communication device, which includes a transmitting device and a receiving device; the transmitting device comprises a cylindrical transmitting end shell, the transmitting end shell comprises a front end cover made of a front end transparent material and a rear end cover at the rear end, and an LED lamp is arranged on the inner side of the front end cover; the rear end cover is provided with a through hole penetrating through the thickness direction of the rear end cover and is fixedly provided with a transmitting end watertight socket, and a connecting port of the transmitting end watertight socket faces the outside of the transmitting end shell; and a transmitting module is arranged in the transmitting end shell, the signal input end of the transmitting module is connected with the transmitting end watertight socket, and the signal output end of the transmitting module is connected with the signal input end of the LED lamp.
However, the underwater visible light communication device still has certain disadvantages:
in its structure, the transmitting terminal launches visible light signal through its front end is transparent and be planar front end housing, and the receiving terminal supplies light to pierce through wholly being spherical crown shape and transparent protecgulum, and the protecgulum of receiving terminal is pressed admittedly through the lens clamping ring, but the lens clamping ring has formed the protecgulum circumference of receiving terminal simultaneously and has sheltered from. Therefore, the transmitting end and the receiving end can obtain good optical communication effect only when being basically opposite. However, the underwater vehicle carrying the optical communication and the underwater visible light communication device carried by the underwater vehicle are often difficult to face, so that the difficulty of utilizing the underwater visible light communication is increased, and the normal realization of the underwater visible light communication function is limited.
Based on the above, the applicant considers to design an underwater visible light communication device capable of better ensuring the successful realization of the underwater visible light communication function.
Disclosure of Invention
To the not enough of above-mentioned prior art, the utility model aims to solve the technical problem that: how to provide an underwater visible light communication device which can better ensure that the underwater visible light communication function is successfully realized.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the underwater visible light communication equipment comprises a light emitter and a light receiver, wherein the light emitter is used for processing an electric signal and converting the electric signal into a visible light signal to be output; the optical receiver is used for receiving visible light signals and processing and converting the visible light signals into electric signals;
the light emitter and the light receiver respectively comprise a sealed shell, and a circuit module is fixedly installed in the sealed shell; a light-transmitting cover for visible light to penetrate is fixedly arranged on the sealed shell; the method is characterized in that:
the light-transmitting cover is provided with a light-transmitting part and a press-mounting part, the whole light-transmitting part is of a hollow hemispherical structure and protrudes out of the sealing shell, the press-mounting part is formed by extending the edge of the light-transmitting part outwards along the radial direction, the press-mounting part is of a circular structure, the press-mounting part is clamped and fixed between the front end part of the sealing shell and the press-mounting ring, the end face of the press-mounting part is attached and connected with the front end face of the sealing shell, and the attached face which is attached and connected is provided with an annular sealing groove filled with an O-shaped sealing ring;
and the light emitting unit in the light emitter and the light receiving unit in the light receiver are respectively fixedly arranged in the hollow hemispherical structure of the light transmission part of the light transmission cover.
Compared with the prior art, the utility model discloses the advantage that visible light communication equipment has under water is:
1. the angle of visible light emission and reception is large, and smooth realization of the optical communication function can be better ensured
In the technical scheme, the light transmitting cover adopts a light transmitting part with a hollow hemispherical structure, and the light emitting unit and the receiving unit are fixedly arranged inside the light transmitting part; because the light transmission part is provided with the light transmission area which is approximately 180 degrees, the opening degree of the light transmission area can be ensured (the transmitting and receiving angles of the visible light are only limited by the light transmitting unit and the receiving unit), and thus, the transmitting and receiving of the visible light signals can have the largest communication angle range, and the communication function of the underwater visible light communication equipment can be more smoothly realized.
2. The structure is simplified and reasonable, the communication function can be ensured, and the assembly difficulty is reduced
The light-transmitting cover is provided with the light-transmitting part with the hollow hemispherical structure, the hollow hemispherical structure is internally provided with a certain volume, and the light-emitting unit or the light-receiving unit in the volume can have a better light-emitting angle or a better light-receiving angle, so that the requirements of the light-emitting unit or the light-receiving unit on the assembly precision can be reduced, and the assembly difficulty is reduced while the smooth realization of the visible light communication function is effectively ensured.
3. The light-transmitting cover is provided with the light-transmitting part which is of a hollow hemispherical structure integrally, so that the weight of the light-transmitting cover can be effectively reduced, the load of an underwater carrier loaded with underwater visible light communication equipment is reduced, and the endurance of the underwater carrier is improved.
Drawings
Fig. 1 is the structure schematic diagram of the underwater visible light communication device of the present invention.
Fig. 2 is the schematic structural diagram of the light emitter in the underwater visible light communication device of the present invention.
Fig. 3 is a cross-sectional view of the light emitter in the underwater visible light communication device of the present invention.
Fig. 4 is an exploded view of the light emitter in the underwater visible light communication device of the present invention.
Fig. 5 is an exploded view of the internal structure of the underwater visible light communication device of the present invention.
Labeled in the figure as:
a light receiver
B, light emitter: b0 transmitting unit
10 sealed housing
20, a light-transmitting cover: 21 light transmission part, 22 press-fitting part
30 press-fitting ring
40 rear end cap
50 watertight socket
60 O-shaped sealing ring
70 circuit module: 71 Circuit board
80 light transmitting/receiving unit mounting substrate: 81 side mounting hole
90 substrate mounting block: 91 substrate mounting terminal
100 circuit module mounting block: 101 threaded connection hole
110 rear end cover connecting block
120 PCB supporting column
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1 to 5, the underwater visible light communication device includes a light emitter and a light receiver, where the light emitter is configured to process an electrical signal and convert the electrical signal into a visible light signal for output; the optical receiver is used for receiving visible light signals and processing and converting the visible light signals into electric signals;
the light emitter and the light receiver respectively comprise a sealed shell, and a circuit module is fixedly installed in the sealed shell; a light-transmitting cover for visible light to penetrate is fixedly arranged on the sealed shell;
the light-transmitting cover is provided with a light-transmitting part and a press-mounting part, the whole light-transmitting part is of a hollow hemispherical structure and protrudes out of the sealing shell, the press-mounting part is formed by extending the edge of the light-transmitting part outwards along the radial direction, the press-mounting part is of a circular structure, the press-mounting part is clamped and fixed between the front end part of the sealing shell and the press-mounting ring, the end face of the press-mounting part is attached and connected with the front end face of the sealing shell, and the attached face which is attached and connected is provided with an annular sealing groove filled with an O-shaped sealing ring;
and the light emitting unit in the light emitter and the light receiving unit in the light receiver are respectively fixedly arranged in the hollow hemispherical structure of the light transmission part of the light transmission cover.
In practice, the transparent cover can be made of glass, acrylic, engineering plastic or other pressure-resistant composite materials (for example, a multi-layer structure using organic glass and engineering plastic as base materials) with light transmittance higher than 90%.
The light receiver is provided with a light receiving unit, and the light receiving unit is arranged at a position close to the spherical center of the hollow hemispherical structure of the light transmitting part of the light transmitting cover.
In this way, the distance between the light receiving unit (e.g., the photosensitive element) and the surface positions of the light-transmitting part can be more consistent, so that the synchronous consistency of the light signal information received by the plurality of light receivers in the single light emitter can be better ensured.
The underwater visible light communication equipment also comprises a light receiving and transmitting unit fixing and mounting mechanism, wherein a light emitting unit in the light emitter and a light receiving unit in the light receiver are respectively assembled and fixed in the sealed shell by adopting the light receiving and transmitting unit fixing and mounting mechanism;
the optical transceiver unit fixing and mounting mechanism comprises an optical transceiver unit mounting substrate and a mounting bracket fixed in the sealed shell, wherein a plate surface mounting hole is formed in the surface of the optical transceiver unit mounting substrate, and the plate surface mounting hole is used for fixedly mounting an optical transmitting unit in the optical transmitter or an optical receiving unit in the optical receiver;
the side surfaces of the periphery of the light receiving and transmitting unit mounting substrate are provided with side mounting holes, and the side mounting holes are fixedly connected with the mounting support through screws.
By adopting the structure of the mounting substrate of the optical transceiver unit, the mounting substrate can be used for fixedly mounting the optical transmitter unit in the optical transmitter and the optical receiver unit in the optical receiver, and has good universality. Thus, the processing difficulty of the mounting substrate of the optical transceiver unit can be reduced, and the production efficiency can be improved.
Meanwhile, the structure that the mounting substrate of the light receiving and transmitting unit and the mounting bracket are independent from each other and can be fixedly connected is adopted, so that the efficient assembly operation of a production line is convenient to manufacture, namely: in the former process, after the optical transceiver unit is mounted on the optical transceiver unit mounting substrate, the optical transceiver unit mounting substrate is fixed to the mounting bracket in the next process.
A lightening hole is arranged on the plate surface of the light receiving and transmitting unit mounting substrate in a penetrating way at the position inside each plate surface mounting hole; and a plurality of side mounting holes are formed in the peripheral side surface of the light receiving and transmitting unit mounting substrate at intervals along the same length direction.
After the structure of the mounting substrate of the optical transceiver unit is adopted, the weight of the mounting substrate of the optical transceiver unit can be reduced through the lightening holes and the side mounting holes, so that the load weight of the underwater vehicle is reduced.
The contact heat dissipation area between the back side of the circuit board of the light receiving and transmitting unit and the air can be increased through the lightening holes, heat collection caused by heating of the circuit board is avoided, and a better heat dissipation effect is obtained.
In addition, the installation and connection positions can be conveniently adjusted through the plurality of side surface installation holes, so that the positions of the light emitting units or the light receiving units on the light receiving and transmitting unit installation substrate can be adjusted, the installation and the use of the light emitting units or the light receiving units with different power sizes can be adapted, the universality is improved, and the development cost is reduced.
The mounting bracket comprises a substrate mounting block, a circuit module mounting block and a rear end cover connecting block;
the substrate mounting block is provided with a substrate mounting end for fixing the mounting substrate of the optical transceiver unit, and the substrate mounting block is integrally and fixedly mounted on the circuit module mounting block;
the circuit module mounting block is integrally of an I-shaped plate structure turned by 90 degrees, and one side plate surface of the I-shaped plate structure is used for fixedly mounting a circuit board of the circuit module through a PCB support column and a screw; one section of the transverse length of the other side plate surface of the I-shaped plate block structure is fixedly connected with the substrate mounting block through a connecting piece, and the other section of the transverse length is fixedly connected with the rear end cover connecting block through a connecting piece;
the rear end cover connecting block is integrally of an L-shaped structure, a vertical part in the L-shaped structure is fixedly connected with the circuit module mounting block, and a transverse part in the L-shaped structure is fixedly connected with the inner side surface of the rear end cover of the sealing shell through a connecting piece.
The mounting bracket formed by the substrate mounting block, the circuit module mounting block and the rear end cover connecting block is divided into parts, so that the components are conveniently processed and produced, the parts are conveniently and independently assembled into modules, and then the modules are quickly assembled into a whole, and the assembly efficiency is improved.
Meanwhile, the circuit module mounting block with the I-shaped board block structure can meet the requirement that the periphery of a circuit board is fixedly mounted through a PCB supporting column and a screw, greatly reduces the self gravity and saves manufacturing materials.
In addition, the rear end cover connecting block is of an L-shaped structure integrally, and has the advantages of high structural strength and firm and reliable connection and support.
The middle connecting part in the I-shaped plate block structure of the circuit module mounting block is provided with at least four threaded connecting holes along the length direction in a penetrating manner.
The arrangement of the at least four threaded connecting holes not only can enable the circuit module mounting block to further reduce weight, but also can flexibly select the threaded connecting hole positions needing to be connected for use, so that better assembly and connection effects can be obtained.
The substrate mounting block is integrally of a strip-shaped plate block type structure, the substrate mounting end is located at the end part of the strip-shaped plate block type structure in the length direction, and the surface where the substrate mounting end is located is provided with at least two connecting holes;
the panel of the strip-shaped plate block type structure is provided with a strip-shaped perforation extending along the length direction, two screws are arranged in the strip-shaped perforation, screw rod parts of the two screws penetrate through the strip-shaped perforation and then are connected into the corresponding threaded connection holes through threads, and screw heads of the two screws are tightly abutted against the panel at the periphery of the strip-shaped perforation to realize the fixed assembly of the substrate mounting block on the circuit module mounting block.
After the base plate mounting block is adopted, the weight can be reduced through the strip-shaped through hole in the structure of the base plate mounting block; the structural arrangement of the strip-shaped through hole is also convenient for accurately adjusting the fixed position of the substrate mounting block (and the light receiving and transmitting unit) in the hemispherical structure of the light-transmitting cover along the length of the strip-shaped through hole before the two screws are locked; in addition, the structure of adjustable fixed position also makes the base plate installation piece can be applicable to the solid dress of the light transceiver unit of different sizes and uses, and the commonality is good.
The rear end cover connecting block is characterized in that a vertical part in an L-shaped structure of the rear end cover connecting block is of a strip-shaped plate structure, a strip-shaped perforation extending along the length direction is arranged on the surface of the strip-shaped plate structure, two screws are arranged in the strip-shaped perforation, screw rod parts of the two screws penetrate through the strip-shaped perforation and then are connected into the threaded connection holes in a corresponding mode through threads, and screw head parts of the two screws abut against the periphery of the strip-shaped perforation to achieve the purpose of fixedly connecting the rear end cover connecting block with the circuit module mounting blocks.
After the rear end cover connecting block structure is adopted, the weight can be reduced through the strip-shaped through holes in the structure of the rear end cover connecting block; the structure of the strip-shaped through hole is convenient for adjusting the fixed position of the circuit module mounting block along the length of the strip-shaped through hole before two screws are locked, so that the circuit module mounting block is in an ideal fixed position, the mounting requirements of circuit module mounting blocks (circuit boards) with different length sizes can be met, and the universality is good.
The rear end cover of the sealed shell is fixedly provided with a watertight socket, and a wiring end on the inner side of the watertight socket is electrically connected with a corresponding interface on the circuit module through a cable.
The watertight socket has good waterproof sealing performance, so that the input interface of the optical transmitter and the output interface of the optical receiver can be reliably and electrically connected with the external electrical connectors underwater, and the use safety and reliability of the product are ensured.
The above are only preferred embodiments of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the technical scope of the present invention, and the technical scope of the present invention should be considered to fall within the scope of the claims.
Claims (9)
1. The underwater visible light communication equipment comprises a light emitter and a light receiver, wherein the light emitter is used for processing an electric signal and converting the electric signal into a visible light signal to be output; the optical receiver is used for receiving visible light signals and processing and converting the visible light signals into electric signals;
the optical transmitter and the optical receiver respectively comprise a sealed shell, and a circuit module is fixedly installed in the sealed shell; a light-transmitting cover for visible light to penetrate is fixedly arranged on the sealed shell; the method is characterized in that:
the light-transmitting cover is provided with a light-transmitting part and a press-mounting part, the whole light-transmitting part is of a hollow hemispherical structure and protrudes out of the sealing shell, the press-mounting part is formed by extending the edge of the light-transmitting part outwards along the radial direction, the press-mounting part is of a circular structure, the press-mounting part is clamped and fixed between the front end part of the sealing shell and the press-mounting ring, the end face of the press-mounting part is attached and connected with the front end face of the sealing shell, and the attached face which is attached and connected is provided with an annular sealing groove filled with an O-shaped sealing ring;
and the light emitting unit in the light emitter and the light receiving unit in the light receiver are respectively fixedly arranged in the hollow hemispherical structure of the light transmission part of the light transmission cover.
2. The underwater visible light communication apparatus of claim 1, wherein: the arrangement position of the light receiving unit in the light receiver is close to the spherical center position of the hollow hemispherical structure of the light transmission part of the light transmission cover.
3. The underwater visible light communication apparatus of claim 1, wherein: the optical transmitter and the optical receiver are respectively assembled and fixed in the sealed shell by adopting the optical transmitting and receiving unit fixing and mounting mechanism;
the optical transceiver unit fixing and mounting mechanism comprises an optical transceiver unit mounting substrate and a mounting bracket fixed in the sealed shell, wherein a plate surface mounting hole is formed in the surface of the optical transceiver unit mounting substrate, and the plate surface mounting hole is used for fixedly mounting an optical transmitting unit in the optical transmitter or an optical receiving unit in the optical receiver;
the side surface of the periphery of the light receiving and transmitting unit mounting substrate is provided with side surface mounting holes, and the side surface mounting holes are fixedly connected with the mounting bracket through screws.
4. The underwater visible light communication device of claim 3, wherein: lightening holes penetrate through the positions, located inside the plate surface mounting holes, of the plate surface of the optical transceiver unit mounting substrate; and a plurality of side mounting holes are formed in the peripheral side surface of the light receiving and transmitting unit mounting substrate at intervals along the same length direction.
5. The underwater visible light communication device of claim 3 or 4, wherein: the mounting bracket comprises a substrate mounting block, a circuit module mounting block and a rear end cover connecting block;
the substrate mounting block is provided with a substrate mounting end for fixing the mounting substrate of the optical transceiver unit, and the substrate mounting block is integrally and fixedly mounted on the circuit module mounting block;
the circuit module mounting block is integrally of an I-shaped plate structure turned by 90 degrees, and one side plate surface of the I-shaped plate structure is used for fixedly mounting a circuit board of the circuit module through a PCB support column and a screw; one section of the transverse length of the other side plate surface of the I-shaped plate block structure is fixedly connected with the substrate mounting block through a connecting piece, and the other section of the transverse length is fixedly connected with the rear end cover connecting block through a connecting piece;
the rear end cover connecting block is integrally of an L-shaped structure, a vertical part in the L-shaped structure is fixedly connected with the circuit module mounting block, and a transverse part in the L-shaped structure is fixedly connected with the inner side surface of the rear end cover of the sealing shell through a connecting piece.
6. The underwater visible light communication device of claim 5, wherein: and at least four threaded connecting holes are formed in the middle connecting part in the I-shaped plate block structure of the circuit module mounting block in a penetrating manner along the length direction.
7. The underwater visible light communication device of claim 6, wherein: the whole substrate mounting block is of a strip-shaped plate block type structure, the substrate mounting end is positioned at the end part of the strip-shaped plate block type structure in the length direction, and the surface of the substrate mounting end is provided with at least two connecting holes;
the circuit module mounting structure comprises a circuit module mounting block and is characterized in that a strip-shaped perforation extending along the length direction is arranged on the surface of the strip-shaped plate block type structure, two screws are arranged in the strip-shaped perforation, screw parts of the two screws penetrate through the strip-shaped perforation and then are connected into the corresponding threaded connection holes through threads, and the screw heads of the two screws are tightly abutted against the surface of the periphery of the strip-shaped perforation to realize the fixed assembly of the substrate mounting block on the circuit module mounting block.
8. The underwater visible light communication device of claim 6, wherein: the vertical part in the L type structure of rear end cap connecting block is bar plate type structure, be provided with the rectangular shape perforation that extends along length direction on the face of bar plate type structure, the rectangular shape is perforated to be provided with two screws, the screw rod part of two screws runs through behind the rectangular shape perforation through threaded connection correspond in the threaded connection hole, just the screwhead portion of two screws supports tightly the face of rectangular shape perforation periphery is realized the rear end cap connecting block with fixed connection between the circuit module installation piece.
9. The underwater visible light communication device of any one of claims 1 to 4, wherein: the rear end cover of the sealed shell is fixedly provided with a watertight socket, and a wiring end on the inner side of the watertight socket is electrically connected with a corresponding interface on the circuit module through a cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222316091.2U CN217985073U (en) | 2022-09-01 | 2022-09-01 | Underwater visible light communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222316091.2U CN217985073U (en) | 2022-09-01 | 2022-09-01 | Underwater visible light communication equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217985073U true CN217985073U (en) | 2022-12-06 |
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ID=84261713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222316091.2U Active CN217985073U (en) | 2022-09-01 | 2022-09-01 | Underwater visible light communication equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217985073U (en) |
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- 2022-09-01 CN CN202222316091.2U patent/CN217985073U/en active Active
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