CN111641455A - Underground optical communication system based on visible light communication - Google Patents
Underground optical communication system based on visible light communication Download PDFInfo
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- CN111641455A CN111641455A CN202010531898.0A CN202010531898A CN111641455A CN 111641455 A CN111641455 A CN 111641455A CN 202010531898 A CN202010531898 A CN 202010531898A CN 111641455 A CN111641455 A CN 111641455A
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- 230000006854 communication Effects 0.000 title claims abstract description 70
- 238000004891 communication Methods 0.000 title claims abstract description 70
- 230000003287 optical effect Effects 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 239000002184 metal Substances 0.000 claims description 37
- 238000009434 installation Methods 0.000 claims description 25
- 239000012528 membrane Substances 0.000 claims description 7
- 239000007787 solid Substances 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000006978 adaptation Effects 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 230000010405 clearance mechanism Effects 0.000 claims description 2
- 210000002421 cell wall Anatomy 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 6
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000007175 bidirectional communication Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 239000003245 coal Substances 0.000 description 12
- 230000005540 biological transmission Effects 0.000 description 9
- 230000033001 locomotion Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
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- 239000010883 coal ash Substances 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/11—Arrangements specific to free-space transmission, i.e. transmission through air or vacuum
- H04B10/114—Indoor or close-range type systems
- H04B10/116—Visible light communication
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- B08B1/143—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/22—Adaptations for optical transmission
Abstract
The invention discloses a visible light communication-based underground optical communication system, which comprises a fixed lamp and a camera which are both arranged on the side wall of a mine opening, wherein a cleaning mechanism is arranged outside the fixed lamp, a controller is electrically connected with the fixed lamp and an photoelectric receiving plate, the system also comprises a data server positioned on the ground of a mine, the data server is electrically connected with the nearest controller, a data information communication module is used as an uplink communication module to be transmitted to the data server, the data server transmits the control command as downlink communication to a plurality of communication modules through a nearest controller to complete communication, the video monitoring and bidirectional communication can be realized by utilizing the original lighting system, meanwhile, the cleaning mechanism with the explosion-proof effect is beneficial to long-term stable operation of the system, and can transmit information to each individual, so that the safety is improved, and the underground environment condition is suitable.
Description
Technical Field
The invention relates to the technical field of underground safety operation, in particular to an underground optical communication system based on visible light communication.
Background
Coal mines are widely distributed on the earth, are the most abundant and direct natural fuel resources in the world, and due to the particularity of the coal mines, which belong to nonrenewable resources, although scientific development is carried out at any time and a lot of other energy sources are appeared to gradually replace coal resources, coal still plays an important role in human activities at present. Most coal mines in the world are underground coal mines, the depth of the mines is continuously increased along with the continuous promotion of the mining degree, the safety problem of the coal mines is always an important problem of mine production activities, and how to strengthen the safety production, improve the early warning and the post-accident treatment is the urgent priority of many underground coal mines at present. Because the underground coal mine environment is special, most of the underground coal mine environment is of a roadway type, other metal mines are associated with a plurality of coal mines, the traditional radio mode is easy to interfere, the conventional ideal effect cannot be achieved, the mine belongs to an explosion-proof environment, the radio is easy to gather energy at an antenna position through the transmission of electromagnetic waves, an additional explosion-proof mechanism is also needed, the underground use is not facilitated, point-to-point communication can be implemented only through a cable mode, and the cost and manpower of wiring construction are increased.
The mine is located underground for 24 hours and needs lighting, and if the existing lighting facilities can be used for carrying out optical communication transmission and integrating the lighting facilities with a sound and picture monitoring system, the implementation of underground safe production can be facilitated; in addition, the lighting system of the underground coal mine can be shielded by coal ash due to environmental factors. We propose a downhole optical communication system based on visible light communication.
Disclosure of Invention
The present invention is directed to a downhole optical communication system based on visible light communication, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a downhole optical communication system based on visible light communication comprises a fixed lamp and a camera, wherein the fixed lamp and the camera are both installed on the side wall of a mine hole through an installation frame, a controller used for processing signals is installed inside an installation sleeve, the controller is connected with a photoelectric receiving plate used for receiving optical signals through an installation rod fixedly connected with the controller, a cleaning mechanism used for cleaning a lampshade of the fixed lamp is arranged outside the installation sleeve, the system also comprises a data server located on the ground of a mine, and the data server is electrically connected with a nearest controller;
the fixed lamp, the camera, the photoelectric receiving board and the controller which are positioned on the same are used as a communication module, and data information is transmitted to a data server as uplink communication through a plurality of communication modules arranged on the side wall of the mine hole.
Preferably, clearance mechanism is including solid fixed ring, the fixed ring is fixed to be cup jointed on the lateral wall of installation cover, and opens on solid fixed ring's the leading flank has the dead slot, the tank bottom of dead slot is connected with the lantern ring through the memory wire, fixedly connected with is used for cleaning the transparent rubber membrane of fixation lamp shade on the lateral surface of the lantern ring, and goes back many heat conduction poles of fixedly connected with on the lateral surface of the lantern ring, the outer end of heat conduction pole and the lamp shade looks adaptation of fixation lamp.
Preferably, the lantern ring is symmetrically provided with a plurality of limiting plates, the inner side face of each limiting plate is fixedly connected with a limiting rod, the inner end of each limiting rod penetrates through the fixing ring and the convex ring through a through hole formed in the fixing ring, and metal elastic pieces with opposite inclination directions are fixedly connected to the groove walls at the two ends of the through hole.
Preferably, it has the draw-in groove to open on the casing of fixed light, the meshing is connected with the positioning bolt with draw-in groove looks adaptation on the installation cover, the rear end inside meshing of installation cover is connected with the end cover, the inside at the end cover is installed to the controller, it has the groove that runs through that is used for letting out the position for the installation pole to open on the lateral wall of installation cover.
Preferably, the data server communicates the control commands as downlink communications through the nearest one of the controllers to a plurality of communication modules mounted on the side wall of the mine cavity.
Preferably, the control command is one or more of an action instruction of the camera, sending audio information and giving an alarm.
Preferably, the system further comprises a safety helmet worn on the individual, and the safety helmet is provided with a photoelectric receiving board and a controller.
Preferably, the safety helmet is further provided with a head lamp controlled by the controller.
Preferably, the photoelectric receiving plate is a solar panel.
Compared with the prior art, the invention has the beneficial effects that: the communication module is formed by combining the fixed lamp, the camera, the controller and the photoelectric receiving plate, the underground video influence can be transmitted to the data server on the ground in real time in an uplink communication mode by utilizing the original lighting system without additionally arranging a circuit, so that the safety supervision is realized, and the cleaning structure without an external power source arranged on the fixed lamp meets the underground explosion-proof requirement; in addition, the data server can also utilize the communication module to carry out downlink communication on the control command, can carry out transmission such as voice broadcast and camera action instructions, and the system also comprises a photoelectric receiving board and a controller which are worn by each individual and can directly broadcast relevant downlink information aiming at the individual, thereby being beneficial to improving the safety.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of the fixed lamp and mounting sleeve of the present invention;
FIG. 3 is a comparison of the deformation of the transparent rubber film of the present invention before and after deformation;
FIG. 4 is a comparison of the motion of a stop lever of the present invention;
FIG. 5 is a schematic view of the mounting of the head lamp of the present invention;
FIG. 6 is an exploded view of the rotating plate and recess of the present invention;
FIG. 7 is a diagram illustrating an application scenario of the present invention.
In the figure: 1. the fixed lamp, 2, wear the lamp, 3, the installation cover, 4, the mounting bracket, 5, the installation pole, 6, the photoelectricity receiver panel, 7, the installation piece, 8, the stabilizer blade, 9, the connecting rod, 10, solid fixed ring, 11, the dead slot, 12, the memory wire, 13, the lantern ring, 14, the transparent rubber membrane, 15, the heat conduction pole, 16, the draw-in groove, 17, positioning bolt, 18, the end cover, 19, the through groove, 20, the limiting plate, 21, the gag lever post, 22, commentaries on classics board, 23, the recess, 24, the controller, 25, the bulge loop, 26, the through hole, 27, the metal shrapnel, 28, the bracing piece, 29, the sound receiving hole, 30, the megaphone, 31, the slot, 32, the camera.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-7:
the fixed lamps 1, the cameras 32 (the number can be empty), the photoelectric receiving board 6 and the controller 24 which are located on the same body are used as a communication module, and data information is transmitted to a data server through a plurality of communication modules installed on the side wall of the mine hole as uplink communication.
The camera 32 collects video signals (and of course audio signals) at a designated position, the video stream is transmitted to the MCU for calculation through the amplifier III, the filter II, the analog-to-digital converter II (a/D), the MCU loads data to the light source, i.e. the fixed lamp 1, through the digital-to-analog converter (D/a), the amplifier I and the driver for transmission, the signal is transmitted through the air channel under the well, the photoelectric receiving board 6 of other communication module receives the optical signal and transmits it to MCU through amplifier II, filter I, A/D converter I, then loads it on the light source to relay transmission according to the above process, finally transmits it to the communication module connected with the data server, then transmits the data to the data server through optical fiber and other wired mode, the data server can display the data information to a monitoring screen or other data processing systems;
for the condition that a plurality of cameras 32 exist underground, the MCU of the current communication module collects and compiles received video data information and data information acquired by the cameras 32, then loads data onto a light source through the transmission of a digital-to-analog converter (D/A), an amplifier I and a driver, namely sends the data out of the fixed lamp 1, transmits signals through an underground air channel, and can acquire and transmit a plurality of paths of video signals by repeating the process.
In order to adapt to the cleaning work in an explosion-proof environment, specifically, the cleaning mechanism comprises a fixing ring 10, the fixing ring 10 is fixedly sleeved on the outer side wall of the mounting sleeve 3, a hollow groove 11 is formed in the front side face of the fixing ring 10 (the side face, far away from the mounting rack 4, of the fixing ring 10 is the front side face), the groove bottom of the hollow groove 11 is connected with a lantern ring 13 through a memory metal wire 12 (the memory metal wire 12 tends to extend outwards after being heated), the lantern ring 13 is connected inside the hollow groove 11 in a sliding manner, one end of the memory metal wire 12 is fixedly connected with the groove bottom of the hollow groove 11, the other end of the memory metal wire is fixedly connected with the lantern ring 13, a transparent rubber film 14 used for wiping the lampshade of the fixed lamp 1 is fixedly connected onto the outer side face of the lantern ring 13, the transparent rubber film 14 is made of a transparent material and cannot influence the emitted light of, the size of the through hole is smaller than the arc size of the outer end of the lampshade, the outer side face of the lantern ring 13 (the side face, away from the fixing ring 10, of the lantern ring 13 is the outer side face) is fixedly connected with a plurality of heat conducting rods 15, the lantern ring 13 is made of heat conducting metal, the outer ends of the heat conducting rods 15 are matched with the lampshade of the fixed lamp 1, when the memory metal wire 12 is in a contraction state, the heat conducting rods 15 can be in contact with the lampshade of the fixed lamp 1, the heat conducting rods 15 and the lantern ring 13 can transfer heat generated by the fixed lamp 1 to the memory metal wire 12, and when the memory metal wire 12 receives certain heat, the heat conducting rods and the lantern;
when the lantern ring 13 is popped up, the heat conducting rod 15 cannot be in contact with the lampshade, the memory metal wire 12 receives reduced heat, so that the temperature begins to be reduced, and when the memory metal wire is reduced to a certain temperature, the memory metal wire begins to contract to pull the lantern ring 13 back to the inside of the empty groove 11;
In order to more stably wipe the lampshade, specifically, the lantern ring 13 is provided with a plurality of limiting plates 20, the limiting plates 20 and the lantern ring 13 are integrally formed, a limiting rod 21 is fixedly connected to the inner side surface of the limiting plate 20 (the side surface of the limiting plate 20 close to the fixing ring 10 is the inner side surface), the inner end of the limiting rod 21 penetrates through the fixing ring 10 through a through hole 26 formed in the fixing ring 10 and is fixedly connected with a convex ring 25, the size of the convex ring 25 is smaller than that of the through hole 26, the convex ring can slide back and forth in the through hole 26, metal elastic sheets with opposite inclination directions are fixedly connected to the two end groove walls of the through hole 26, the metal elastic sheets 27 block the convex ring 25, and the metal elastic sheets 27 are all inclined outwards, so that the deformation degree generated by the metal elastic sheets 27 when the convex ring 25 moves towards the inside of the through hole 26 is far greater than the deformation degree generated by the metal elastic sheets 27 when, so that the force required to move collar 25 into through-hole 26 is much greater than the force required to move collar 25 out of through-hole 26.
For example, when the collar 13 moves away from the fixing ring 10, the limiting rod 21 will move along with the collar, that is, the limiting rod 21 will slide to the right, and at this time, the metal elastic sheet 27 at the left end of the through hole 26 will hinder the limiting rod 21 and the fixing ring 10 from continuing to move through the convex ring 25, so that the memory metal wire 12 is powered on, and after the elastic force accumulated by the memory metal wire 12 is greater than the resistance force of the metal elastic sheet 27 at the left end of the through hole 26 to the convex ring 25, the convex ring 25 will first push the metal elastic sheet 27 at the left end open, and then push the metal elastic sheet 27 at the right end open to move to the state shown in fig. 4-B, and at this time, the memory metal wire 12 will extend to;
after the memory metal wire 12 extends to the maximum degree, the heat conducting rod 15 is disconnected from the lampshade of the fixed lamp 1 (at this time, the limiting rod 21 is in the state shown in fig. 4-B), at this time, the memory metal wire 12 starts to dissipate heat and shrink, so that the lantern ring 13 moves towards the fixed ring 10 and drives the limiting rod 21 to move leftwards, at this time, the metal elastic sheet 27 at the right end of the through hole 26 hinders the limiting rod 21 from continuing to move, so that the memory metal wire 12 starts to accumulate force, after the elastic force accumulated by the memory metal wire 12 is greater than the resistance force of the metal elastic sheet 27 at the right end of the through hole 26 to the convex ring 25, the convex ring 25 firstly pushes the metal elastic sheet 27 at the right end, then the metal elastic sheet 27 at the left end is pushed to move to the state shown in fig. 4-a, and at this time, the memory metal;
the arrangement of the convex ring 25, the through hole 26 and the metal elastic sheet 27 changes the movement mode of the lantern ring 13 from gradual to abrupt, so that the situation that the heat conducting rod 15 keeps still at a special distance (i.e. the position where the absorbed heat and the emitted heat are the same) and the transparent rubber film 14 cannot complete the wiping work can be avoided.
Specifically, a clamping groove 16 is formed in a shell of the fixed lamp 1, a positioning bolt 17 matched with the clamping groove 16 is connected to the mounting sleeve 3 in a meshed mode, the fixed lamp 1 is inserted into the mounting sleeve 3 and then can be clamped with the clamping groove 16 by screwing the positioning bolt 17, so that the fixed lamp 1 is stably mounted in the mounting sleeve 3, an end cover 18 is connected to the rear end of the mounting sleeve 3 in a meshed mode, the controller 24 is mounted in the end cover 18, a through groove 19 used for giving the mounting rod 5 out of position is formed in the side wall of the mounting sleeve 3, the end cover 18 is screwed into the rear end of the mounting sleeve 3, the controller 24 is mounted, and the mounting rod 5 located on the controller 25 can extend into the mounting sleeve 3 through the through groove 19.
Specifically, the helmet is further provided with a head-mounted lamp 2 controlled by the controller 24, the mounting block 7 is provided with a sound receiving hole 29 connected with the controller 24, voice sent by each individual is picked up by the sound receiving hole 29, and then the voice is loaded to the head-mounted lamp 2 through the controller 24 for data transmission, so that voice content of each individual under the well can be transmitted, and therefore bidirectional interaction is achieved, and it is noted that transmitted information contains a header, namely the information is specific to an uplink communication module, a downlink communication module, an individual helmet and the like.
In particular, the light sources, i.e. the fixed lamp 1 and the head lamp 2, may be white light emitting diodes or laser diodes. And in order to achieve the energy saving effect, the photoelectric receiving plate 6 may be a solar cell panel as a photoelectric component, thereby being capable of recovering a part of energy.
Wear lamp 2 and install on installation piece 7 to make wear lamp 2 and install on the safety helmet, specifically speaking, wear lamp 2 and install on changeing board 22, change board 22 and rotate the inside of connecting the recess 23 that opens on installation piece 7, change the inside of board 22's lower extreme through the pivot rotation connection at recess 23, can realize adjusting 2 angles of wear lamp, facilitate the use.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a downhole optical communication system based on visible light communication, includes fixed lamp (1) and camera (32), fixed lamp (1) and camera (32) all install on the lateral wall of mine hole through mounting bracket (4), its characterized in that: the system comprises a fixed lamp (1), a controller (24) for processing signals is installed inside an installation sleeve (3), the controller (24) is connected with a photoelectric receiving plate (6) for receiving optical signals through an installation rod (5) fixedly connected with the controller (24), a cleaning mechanism for cleaning a lampshade of the fixed lamp (1) is arranged outside the installation sleeve (3), the system further comprises a data server located on the ground of a mine, and the data server is electrically connected with the nearest controller (24);
the fixed lamp (1), the camera (32), the photoelectric receiving board (6) and the controller (24) which are located on the same are used as a communication module, and data information is transmitted to a data server through a plurality of communication modules installed on the side wall of the mine hole as uplink communication.
2. A downhole optical communication system based on visible light communication according to claim 1, wherein: clearance mechanism is including solid fixed ring (10), gu fixed ring (10) are fixed cup joints on the lateral wall of installation cover (3), and open on the leading flank of solid fixed ring (10) dead slot (11), the tank bottom of dead slot (11) is connected with the lantern ring (13) through memory wire (12), fixedly connected with is used for cleaning transparent rubber membrane (14) of fixation lamp (1) lamp shade on the lateral surface of the lantern ring (13), and goes back many heat conduction poles (15) of fixedly connected with on the lateral surface of the lantern ring (13), the outer end of heat conduction pole (15) and the lamp shade looks adaptation of fixation lamp (1).
3. A downhole optical communication system based on visible light communication according to claim 2, wherein: the symmetry is equipped with a plurality of limiting plates (20) on the lantern ring (13), fixedly connected with gag lever post (21) on the medial surface of limiting plate (20), the inner of gag lever post (21) runs through solid fixed ring (10) and fixedly connected with bulge loop (25) through open through hole (26) that have on solid fixed ring (10), and equal fixedly connected with metal shrapnel (27) that incline opposite direction on the both ends cell wall of through hole (26).
4. A downhole optical communication system based on visible light communication according to claim 1, wherein: open on the casing of fixed lamp (1) and have draw-in groove (16), the meshing is connected with positioning bolt (17) with draw-in groove (16) looks adaptation on installation cover (3), the rear end internal meshing of installation cover (3) is connected with end cover (18), the inside at end cover (18) is installed in controller (24), it has through groove (19) that are used for giving installation pole (5) the position to let out to open on the lateral wall of installation cover (3).
5. A downhole optical communication system based on visible light communication according to claim 1, wherein: the data server communicates control commands as downlink communications through a nearest one of the controllers (24) to a plurality of communication modules mounted on the side walls of the mine.
6. A downhole optical communication system based on visible light communication according to claim 5, wherein: the control command is one or more of action instructions of the camera (32), sending audio information and giving an alarm.
7. A downhole optical communication system based on visible light communication according to claim 6, wherein: the system further comprises a helmet for wearing on the individual, the helmet being provided with a photo-receiving panel (6) and a controller (24).
8. A downhole optical communication system based on visible light communication according to claim 7, wherein: the safety helmet is also provided with a head-mounted lamp (2) controlled by a controller (24).
9. A downhole optical communication system based on visible light communication according to any of claims 1-8, wherein: the photoelectric receiving plate (6) is a solar panel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531898.0A CN111641455B (en) | 2020-06-11 | 2020-06-11 | Underground optical communication system based on visible light communication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010531898.0A CN111641455B (en) | 2020-06-11 | 2020-06-11 | Underground optical communication system based on visible light communication |
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| CN111641455A true CN111641455A (en) | 2020-09-08 |
| CN111641455B CN111641455B (en) | 2021-08-24 |
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| CN111641455B (en) | 2021-08-24 |
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