CN111917469B - Underwater visible light communication device - Google Patents
Underwater visible light communication device Download PDFInfo
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- CN111917469B CN111917469B CN202010807720.4A CN202010807720A CN111917469B CN 111917469 B CN111917469 B CN 111917469B CN 202010807720 A CN202010807720 A CN 202010807720A CN 111917469 B CN111917469 B CN 111917469B
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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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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
Abstract
The invention is suitable for the technical field of visible light communication, and provides an underwater visible light communication device, which comprises: the shell (100), the shell (100) is formed by at least two separable daughter bodies (120) in a packaging mode, the contact surface of every two adjacent daughter bodies (120) is provided with a packaging part for packaging, and the non-contact surface of each daughter body (120) is provided with at least one group of visible light underwater transceiver modules (200). The embodiment of the invention has the advantages that through the separable design, the device can move more flexibly under water, the sub-bodies can independently operate, and visible light underwater communication is realized; when a plurality of sub-bodies are constructed and arranged, the whole device is provided with a plurality of groups of visible light underwater receiving and sending modules, more communication scenes can be adapted at the moment, and when a plurality of devices form an optical path, the effect of a visible light communication link can be achieved, and the communication distance can be expanded infinitely.
Description
Technical Field
The invention belongs to the field of visible light communication, and particularly relates to an underwater visible light communication device.
Background
The visible light communication is a novel information technology for realizing wireless transmission by utilizing the high-speed on-off response characteristic of the LED, and has the technical advantages of high speed, no electromagnetic radiation, high density, low cost, rich spectrum and high confidentiality. Especially in 12 months in 2015, through test and certification of the ministry of industry and trust in china, the key technical research of the visible light communication system in china is a major breakthrough, the real-time communication rate is improved to 50Gbps, and the high-speed advantage of visible light in the communication field is shown again.
Existing underwater communications are more or more wired transmission because radio waves cannot propagate underwater. Visible light can be transmitted underwater, so visible light communication can also be applied to the situation that the traditional wireless transmission electromagnetic wave signals cannot be transmitted underwater. Influenced by many aspects, the effective distance of the existing underwater visible light transmission is short, the problem of long-distance data transmission is still difficult to solve, and certain requirements are also provided for the transmittance of a water body. Therefore, the adaptability of the existing underwater visible light communication is still insufficient, and a solution is urgently needed.
Disclosure of Invention
In view of this, the embodiment of the present invention provides an underwater visible light communication device, so that the adaptability of visible light in underwater communication is stronger, and the device can be arranged and designed according to the requirements of different scenes.
A first aspect of an embodiment of the present invention provides an underwater visible light communication device, including: the shell is formed by packaging at least two separable sub-bodies, a packaging part for packaging is arranged on the contact surface of every two adjacent sub-bodies, and at least one group of visible light underwater transceiving modules is arranged on the non-contact surface of each sub-body.
Through separable design, make the device more nimble in the activity under water, the daughter also can independently operate, during the independent operation of single daughter, can be send visible light signal that receiving module received under the visible light water through receiving module under the visible light again, also can be with other signals of visible light signal conversion that receiving module received under the visible light water and communicate, the object of communication can be another daughter, also can be equipment such as host computer, its applied scene ten minutes many units.
When a plurality of sub-bodies are constructed, the whole device is provided with a plurality of groups of visible light underwater transceiving modules, and more communication scenes can be adapted to, for example: when a communication scene needs a longer distance or more complicated conditions, visible light underwater transceiver modules arranged on multiple sides can be used, and the modules can be communicated with each other in the shell, so that the whole underwater visible light communication device can effectively transmit visible light signals on one side to the other side, can transmit the visible light signals on the opposite sides of a straight line, and can also change the transmission angle of an optical path, for example, two sub-bodies are assembled in a 90-degree included angle mode, and the optical paths of the two modules form a 90-degree included angle, so that the transmission angle of visible light can be changed by 90 degrees through the corresponding signal transmission channel, and the defect that the optical communication can only be transmitted in a straight line due to the fact that light can only be transmitted in a straight line can be overcome. Similarly, the visible light underwater transceiver modules arranged in different directions of the daughter can also realize the change of the visible light communication angles at other angles.
When a plurality of underwater visible light communication devices form an optical path, the effect of a visible light communication link can be achieved, the communication distance is infinitely expanded, the single underwater visible light communication device achieves the function similar to communication relay equipment, and the application scene is more diversified.
Therefore, the underwater visible light communication device has strong adaptability, can be arranged according to the requirements of different scenes, can adapt to various underwater communication scenes, can change the light path angle of visible light communication, and can expand the communication distance in a mode of connecting multiple devices in series.
In one embodiment, the visible light underwater transceiver module is arranged at the head of the sub-body, the structure part is arranged at the tail of the sub-body, the structure part of one sub-body is a male head, the structure part of the other sub-body is a corresponding female head, and the structure parts are matched with each other to complete the structure.
The two sub-bodies can be packaged by inserting the female head after the male head is aligned, and the special-shaped head can be adopted to facilitate the approval of the packaging angle, so that perfect assembly is ensured. After the two sub bodies are constructed, the two ends of the shell are the visible light underwater transceiving modules, and visible light signals on the two sides can be effectively transmitted.
In one embodiment, the side walls of the sub-body are provided with N sets of underwater propulsion devices. The underwater propulsion means may be mounted externally of the housing or may be embedded in the side walls for the purpose of controlling the movement of the sub-body underwater. Normally, an electric control propeller is adopted as an underwater propulsion device, and positive rotation and reverse rotation can be realized, so that the daughter can advance and retreat. It is often desirable to provide an even number of sets of underwater propulsion devices on the symmetrical sidewalls so that the underwater travel process does not turn around on site with unilateral propulsion.
In one embodiment, the sub body is provided with M groups of drainage channels communicating the side wall and the tail part of the sub body, and the underwater propulsion device is installed in the drainage channels;
the drainage channels of two adjacent sub-bodies are in one-to-one correspondence, and the drainage channels of the two sub-bodies are communicated on the shell body.
The underwater propelling device is arranged in the drainage channel, so that objects such as waterweeds and the like can be effectively prevented from being hooked by the paddle, the risk of being detected by an underwater scanning facility can be reduced, and the underwater operation interference is smaller.
At least one set of underwater propulsion devices may be installed in all the drainage channels of each sub-body to increase the thrust, where N is an integral multiple of M, such as M when only one set of underwater propulsion devices is installed in each channel, and 2M when 2 sets of underwater propulsion devices are installed in each channel. However, after the sub-bodies are assembled, the drainage channels of two adjacent sub-bodies are correspondingly communicated one by one, the communicated drainage channels enable the side walls of the two sub-bodies to penetrate through the inside, and meanwhile, two underwater propelling devices are arranged in each channel, so that when the whole device is controlled to move, the two underwater propelling devices in the same channel need to be ensured to move towards the same direction, and the two underwater propelling devices are prevented from being mutually offset in an opposite way.
Or only one group of underwater propulsion devices can be arranged in the two opposite drainage channels in the two adjacent sub-bodies, so that the number of the underwater propulsion devices on each sub-body is less than that of the drainage channels, but the number of the constructed integral drainage channels is the same as that of the underwater propulsion devices. Similarly, each drainage channel can be provided with a plurality of groups of underwater propelling devices for increasing the propelling force, but the underwater propelling devices are arranged in only one channel of the two opposite drainage channels.
In one embodiment, the female head is provided with a magnetic attraction device, and the male head is fixedly provided with a magnetizer. When the magnetic attraction device is electrified to work, the female head generates magnetic attraction to attract the magnetizer in the male head, and finally the male head and the female head are matched to complete packaging.
The magnetic attraction device can select a motor to connect the combination of the rotary magnet, and when the motor works electrically, the rotary magnet obtains magnetic force along with rotation, thereby attracting magnetizers such as iron cores.
In one embodiment, a waterproof bin is arranged in the sub-body, the waterproof bin comprises a communication chamber and a power supply chamber, the visible light underwater transceiver module is arranged in the communication chamber, a power supply is arranged in the power supply chamber, the power supply supplies power to the visible light underwater transceiver module, and the power supply can also supply power to any one of the above-mentioned electric devices, such as a magnetic attraction device and an underwater propulsion device;
the communication chamber is located at the head of the sub-body, and the chamber wall is made of light-transmitting materials.
In one embodiment, the communication indoor wall is provided with a tripod head support, and the visible light underwater transceiver module is fixedly mounted on the tripod head support;
the holder support is provided with a horizontal rotating mechanism and a vertical rotating mechanism and is used for horizontally rotating and vertically rotating the visible light underwater transceiving module.
The orientation angle of the visible light underwater transceiver module is adjusted by the light path, the specific adjusting mode can refer to the rotation principle of the existing camera device, and the equivalent of the rotation structure is set as: the holder support is provided with a horizontal rotating mechanism and a vertical rotating mechanism which are respectively used for horizontally rotating and vertically rotating the visible light underwater transceiving module. The specific design of the horizontal rotation and the vertical rotation is disclosed in a large number of rotation publications of camera devices, and is not described in detail herein.
In one embodiment, an image acquisition device is further installed in the communication chamber and used for acquiring images outside the shell. The collected underwater image data can be transmitted to an upper computer through visible light communication so as to realize the function of collecting data underwater in the embodiment.
In one embodiment, the visible light underwater transceiver module comprises a visible light underwater receiving unit and a visible light underwater transmitting unit, and light paths of the visible light underwater receiving unit and the visible light underwater transmitting unit face the outside of the shell and are independent of each other.
The receiving unit and the transmitting unit are independent from each other, and can respectively process the signal transmission of different optical paths, namely, different optical signals can be simultaneously transmitted and received, and the signal transmission and the signal reception of different data can be simultaneously completed.
In one embodiment, the visible-light underwater receiving unit includes a receiving optical system, a photoelectric conversion mechanism, and a receiving circuit, which are arranged in this order in a photoelectric transmission direction, wherein:
the receiving optical system is used for receiving optical signals, and mainly enables light rays reaching a receiving end to converge and hit a receiving photodiode as far as possible, so that under the same underwater absorption scattering condition, the loss of light beam energy can be reduced, and the effective transmission distance is longer. Generally, a receiving optical system is composed of a circular optical glass convex lens and a properly focused receiving structure;
the photoelectric conversion mechanism is used for converting the optical signal into an electrical signal, and the common photoelectric conversion mechanism 212 is a photodiode, and can be set as a single photodiode or a photodiode array as required to meet communication conditions;
the receiving circuit is used for outputting the electric signals in a communication data format and mainly comprises a signal receiving amplifying circuit, an STM32 processing circuit and a power supply circuit, wherein the signal receiving amplifying circuit is used for amplifying weak photoelectric signals so as to facilitate the effectiveness of subsequent data processing, the STM32 processing circuit receives and processes the amplified digital signals and then transmits data with remote communication equipment through a cable 300, and the power supply circuit is connected with a power supply 400 and supplies power to the signal receiving amplifying circuit and the STM32 processing circuit;
the visible light underwater transmitting unit comprises a transmitting circuit, a transmitting light source and a collimating optical system which are sequentially arranged along the photoelectric transmission direction, wherein:
the transmitting circuit is used for acquiring communication data and analyzing the communication data into electric signals and mainly comprises an LED driving circuit, an STM32 processing circuit and a power supply circuit, the STM32 processing circuit and the power supply circuit can be shared with the STM32 processing circuit and the power supply circuit of the receiving circuit, and only parts which are correspondingly provided for the LED driving circuit to work are needed, and the LED driving circuit converts the data signals into a form which can be processed by an LED light source;
the emission light source is used for converting the electric signal into an optical signal, is usually a light emitting diode, and can be set as a single light emitting diode or a light emitting diode array as required to meet communication conditions;
the collimating optical system is used for releasing the optical signal as collimated light, and aims to reduce the divergence angle of the light beam during free space transmission and enable the light beam to be transmitted in the form of parallel light in the free space as much as possible. A round optical glass convex lens and an emitting structure with proper focal length are generally selected to form a collimation optical system.
Compared with the prior art, the embodiment of the invention has the following beneficial effects:
the embodiment of the invention has the advantages that through the separable design, the device can move more flexibly under water, the sub-bodies can independently operate, and visible light underwater communication is realized; when a plurality of sub-bodies are constructed and arranged, the whole device is provided with a plurality of groups of visible light underwater receiving and sending modules, more communication scenes can be adapted at the moment, and when a plurality of devices form an optical path, the effect of a visible light communication link can be achieved, and the communication distance can be expanded infinitely.
The underwater communication device can be arranged according to the requirements of different scenes, can adapt to various underwater communication scenes, can change the optical path angle of visible light communication, and can expand the communication distance in a multi-device series connection mode.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an underwater visible light communication device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a configuration part in an underwater visible light communication device according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of an underwater visible light communication device provided by an embodiment of the present invention;
fig. 4 is a cross-sectional view of a sub-body of an underwater visible light communication device according to an embodiment of the present invention;
fig. 5 is a cross-sectional view of another sub-body of an underwater visible light communication device according to an embodiment of the present invention;
fig. 6 is a communication schematic diagram of an underwater visible light communication device according to an embodiment of the present invention.
Detailed Description
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
The embodiment of the invention adopts the following structure:
the first embodiment is as follows:
referring to fig. 1, the present embodiment provides an underwater visible light communication device, including: the housing 100, the housing 100 is formed by two separable sub-bodies 120, and a set of visible light underwater transceiver modules 200 is respectively disposed at the end of the two sub-bodies 120. In this embodiment, the two sub-bodies 120 have bullet-shaped end portions, and the chamber walls of the end portions are made of transparent material.
The bullet-shaped structure is advantageous for underwater work, and the underwater propulsion device 103 can be operated to work by the traveling controller by only putting the sub-body 120 or the housing 100 into water, so that the underwater visible light communication device can travel to any destination.
The outer wall of each sub-body 120 is provided with four sets of drainage channels 102 communicating with the tail end of the housing 100, and in this embodiment, the sub-bodies can be constructed and operated, so that two sets of drainage channels 102 on opposite sides are selected as one combination, for example, the upper side and the lower side are one combination, and the left side and the right side are the other combination, each sub-body 120 is provided with two drainage channel 102 combinations, and the two sub-bodies 120 are respectively selected as one combination, for example, the first sub-body is selected as the drainage channel 102 combined up and down, and the second sub-body is selected as the drainage channel 102 combined left and right for installing the underwater propulsion device 103, as shown in fig. 2.
When the sub-bodies 120 work independently, the underwater movement can be realized through the two combined underwater propelling devices 103, and after the two sub-bodies 120 are constructed into the complete shell 100, each group of the drainage channels 102 opposite to each other on the sub-bodies 120 can be communicated, so that the four underwater propelling devices 103 are respectively positioned in one group of the communicated drainage channels 102 to work.
As shown in fig. 2, the contact surfaces of the two sub-bodies 120 are provided with a structure part, wherein the structure part of one sub-body 120 is a male head 121, and the structure part of the other sub-body 120 is a corresponding female head 122, and the two parts are matched to complete the structure. The arrangement of the underwater propulsion device 103 and the tail wing 101 can provide better conditions for positioning the structural part, and is convenient for adjusting the matching angle of the male head 121 and the female head 122.
Preferably, the tail part of the sidewall of each sub-body 120 is provided with a tail wing 101 to facilitate the adjustment of the moving direction.
The daughter 120 can adopt communication modes such as wired and wireless, the wired transmission has the advantages that the daughter is not easily interfered by water, the wired connection is needed to limit the separation operation of the daughter and the water, the wireless transmission has the advantages and disadvantages that the separation operation distance is not limited, but the underwater communication is influenced by the water.
In this embodiment, the sub-bodies 120 are configured to communicate wirelessly as a transmission channel, and as shown in fig. 2, the contact surfaces of the two sub-bodies 120 are configured with communication holes 123 for data communication after the two sub-bodies are assembled.
Preferably, the assembly method in this embodiment is magnetic assembly, the female head 122 is provided with a magnetic device 124, the male head 121 is fixedly installed with a magnetizer 125, when the magnetic device 124 is powered on to work, the female head 122 generates magnetic attraction to attract the magnetizer 125 in the male head 121, and finally the male head 121 and the female head 122 are matched to complete the assembly.
The magnetic attraction device 124 is a combination of a motor and a rotary magnet, and when the motor works electrically, the rotary magnet obtains magnetic force along with rotation, so that magnetic conductors such as iron cores are attracted.
As shown in fig. 4 and 5, the internal structure of each sub-body 120 is substantially similar in the present embodiment, and the difference is only in the packaging structure.
Each sub-body 120 is provided therein with a waterproof chamber 110, the waterproof chamber 110 includes a communication chamber 111 and a power supply chamber 112, and the communication chamber 111 is located at the head of the sub-body 120.
Each communication chamber 111 is internally provided with a group of visible light underwater transceiver modules 200, and the power supply chamber 112 is internally provided with a power supply 400, wherein the power supply 400 supplies power to the visible light underwater transceiver modules 200, the underwater propulsion device 103 and the magnetic attraction device 124.
Preferably, in the present embodiment, the cradle head support 500 is disposed on the inner wall of the communication chamber 111, and the visible light underwater transceiver module 200 is fixedly mounted on the cradle head support 500;
the pan/tilt support 500 is provided with a horizontal rotation mechanism 510 and a vertical rotation mechanism 520 for horizontally rotating and vertically rotating the visible light underwater transceiving module 200, respectively.
Preferably, an image capturing device 600 is further installed in each communication room 111 in the present embodiment, and is used for capturing an image outside the housing 100. The collected underwater image data can be transmitted to an upper computer through visible light communication so as to realize the function of collecting data underwater in the embodiment.
The two sets of visible light underwater transceiver modules 200 in this embodiment have the same design, and each include a visible light underwater receiving unit 210 and a visible light underwater transmitting unit 220, and optical paths of the visible light underwater receiving unit 210 and the visible light underwater transmitting unit 220 face the outside of the housing 100 and are independent of each other.
As shown in fig. 6, the visible-light underwater receiving unit 210 includes a receiving optical system 211, a photoelectric conversion mechanism 212, and a receiving circuit 213, which are arranged in this order in the photoelectric transmission direction, wherein:
the receiving optical system 211 is used for receiving optical signals, and mainly converges light reaching a receiving end and makes the light strike a receiving photodiode as much as possible, so that under the same underwater absorption and scattering condition, the loss of light beam energy can be reduced, and the effective transmission distance is longer. The receiving optical system 211 is generally composed of a circular optical glass convex lens and a properly focused receiving structure.
The photoelectric conversion mechanism 212 is used to convert an optical signal into an electrical signal, and a common photoelectric conversion mechanism 212 is a photodiode, and can be configured as a single photodiode or a photodiode array as required to meet communication conditions.
The receiving circuit 213 is used for outputting the electrical signals in a communication data format, and mainly comprises a signal receiving amplifying circuit, an STM32 processing circuit and a power supply circuit, wherein the signal receiving amplifying circuit is used for amplifying weak optical and electrical signals so as to facilitate the effectiveness of subsequent data processing, the STM32 processing circuit receives and processes the amplified digital signals, and then transmits data with remote communication equipment through the cable 300, and the power supply circuit is connected with the power supply 400 and supplies power to the signal receiving amplifying circuit and the STM32 processing circuit.
The visible light underwater transmitting unit 220 includes a transmitting circuit 221, a transmitting light source 222, and a collimating optical system 223 that are sequentially arranged along a photoelectric transmission direction, wherein:
the transmitting circuit 221 is configured to acquire communication data and analyze the communication data into an electrical signal, and mainly includes an LED driving circuit, an STM32 processing circuit, and a power supply circuit, where the STM32 processing circuit and the power supply circuit may be shared with the STM32 processing circuit and the power supply circuit of the receiving circuit 213, and only need to be correspondingly provided as a part of the LED driving circuit, and the LED driving circuit converts the data signal into a form that can be processed by an LED light source.
The light emitting source 222 is used for converting the electrical signal into an optical signal, and is typically a light emitting diode, and as such, may be a single light emitting diode or an array of light emitting diodes as required to satisfy the communication condition.
The collimating optical system 223 is used to release the optical signal as collimated light, so as to reduce the divergence angle of the light beam in free space transmission and to transmit the light beam in parallel light in free space as much as possible. The collimating optical system 223 is generally composed of a circular optical glass convex lens and an emitting structure with a proper focal length.
Each set of visible light underwater transceiver module 200 is further provided with a wireless communication unit for wireless communication between the two.
In addition, the visible light underwater transceiver module 200 may further include a data processor for centrally processing all the works of the sub-bodies, including a visible light communication function, an underwater movement propulsion function, a construction and installation magnetic attraction function, an image acquisition function, and the like.
For example, in the visible light communication function, a first data input end of the data processor may be connected to the output end of the receiving circuit 213, a second data output end of the data processor may be connected to the input end of the transmitting circuit 221, a data collecting end of the data processor may be connected to the output end of the image collecting device 600, and the first data output end and the second data input end of the data processor may be respectively connected to the data input end and the data output end of the wireless communication unit.
Similarly, the underwater motion propulsion function can be realized by connecting a propulsion control end of a data processor with the underwater propulsion device 103, constructing a magnetic attraction function and connecting a magnetic attraction control end of the data processor with the magnetic attraction device 124, and an image acquisition function and connecting an image acquisition end of the data processor with the image acquisition device 600.
Through the above design, this embodiment can be in the separation under water and the combination, each daughter 120 can both realize underwater motion function and visible light communication function alone during the separation, receive the visible light signal by visible light underwater receiving unit 210, export the host computer of distal end again through wired or wireless, also can realize sending the function of visible light signal by visible light underwater sending unit 220 after receiving data by cable 300 from the distal end, can also send the visible light signal by visible light underwater sending unit 220 after receiving the visible light signal by visible light underwater receiving unit 210.
When the visible light underwater receiving and transmitting module is combined, the visible light communication function and the transmission relay function can be realized, a visible light underwater receiving unit 210 on one side receives a visible light signal, wired or wireless communication is output to a visible light underwater receiving and transmitting module on the other side, and a visible light underwater transmitting unit 220 of the module on the other side transmits the visible light signal to form a visible light communication transmission function.
It is anticipated that a plurality of sub-bodies may be inserted between the two sub-bodies 120 of the present embodiment, and these sub-bodies are located in the middle section of the casing after being packaged, so that these sub-bodies may be configured as cylindrical sub-bodies without containing the visible light underwater transceiver module to extend the length of the casing 100, or may be configured as "T" shaped sub-bodies, similar to the tee in the piping, but may be configured with the visible light underwater transceiver module at the end that is not packaged.
The sub-body of "T" style of calligraphy can possess many-sided advantage, on the one hand, has increased a visible light communication's passageway, and on the other hand has also realized the 90 turns of light passageway, is favorable to upwards transmitting the submarine signal to the surface of water. It is foreseen that the above 90 ° is only preferred and that the deflection angle can be designed according to practical requirements.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment. And the above embodiments may be combined or combined arbitrarily.
It can be appreciated by those skilled in the art that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (7)
1. An underwater visible light communication device, comprising: the shell (100), the shell (100) is formed by at least two separable sub-bodies (120) in a packaging mode, a packaging part for packaging is arranged on the contact surface of every two adjacent sub-bodies (120), and at least one group of visible light underwater transceiver modules (200) is arranged on the non-contact surface of each sub-body (120);
the head of the sub-body (120) is provided with the visible light underwater transceiver module (200), the tail of the sub-body (120) is provided with the assembly part, one assembly part of the sub-body (120) is a male head (121), the assembly part of the other sub-body (120) is a corresponding female head (122), and the two are matched to complete assembly;
the side wall of the sub-body (120) is provided with N groups of underwater propelling devices (103);
the daughter (120) is provided with M groups of drainage channels (102) which are communicated with the side wall and the tail of the daughter (120), and the underwater propulsion device (103) is arranged in the drainage channels (102);
the drainage channels (102) of two adjacent sub-bodies (120) are in one-to-one correspondence, and the drainage channels (102) of the two sub-bodies (120) are communicated on the shell (100) which is constructed;
in two adjacent sub-bodies (120), only one group of underwater propulsion devices (103) is arranged in two opposite drainage channels (102), and the number of the constructed integral drainage channels is the same as that of the underwater propulsion devices.
2. An underwater visible light communication device as claimed in claim 1, wherein the female head (122) is provided with a magnetic attraction device (124), and the male head (121) is fixedly provided with a magnetizer (125).
3. The underwater visible light communication device of claim 1, wherein a waterproof bin (110) is arranged in the sub-body (120), the waterproof bin (110) comprises a communication chamber (111) and a power supply chamber (112), the visible light underwater transceiver module (200) is installed in the communication chamber (111), a power supply (400) is installed in the power supply chamber (112), and the power supply (400) supplies power to the visible light underwater transceiver module (200);
the communication chamber (111) is positioned at the head part of the sub-body (120), and the chamber wall is made of light-transmitting materials.
4. An underwater visible light communication device according to claim 3, wherein the inner wall of the communication room (111) is provided with a cradle head support (500), and the visible light underwater transceiving module (200) is fixedly installed on the cradle head support (500);
the holder support (500) is provided with a horizontal rotating mechanism and a vertical rotating mechanism, and the horizontal rotating mechanism and the vertical rotating mechanism are used for horizontally rotating and vertically rotating the visible light underwater transceiving module (200).
5. An underwater visible light communication device according to claim 3, wherein an image acquisition device (600) is further installed in the communication chamber (111) for acquiring an image outside the housing (100).
6. The underwater visible light communication device of claim 1, wherein the underwater visible light transceiver module (200) comprises a visible light underwater receiving unit (210) and a visible light underwater transmitting unit (220), and light paths of the visible light underwater receiving unit (210) and the visible light underwater transmitting unit (220) face to the outside of the housing (100) and are independent of each other.
7. The underwater visible light communication device according to claim 6, wherein the underwater visible light receiving unit (210) includes a receiving optical system (211), a photoelectric conversion mechanism (212), and a receiving circuit (213) which are arranged in this order in a photoelectric transmission direction, wherein:
the receiving optical system (211) is used for receiving an optical signal, the photoelectric conversion mechanism (212) is used for converting the optical signal into an electric signal, and the receiving circuit (213) is used for outputting the electric signal in a communication data format;
the visible light underwater transmitting unit (220) comprises a transmitting circuit (221), a transmitting light source (222) and a collimating optical system (223) which are sequentially arranged along a photoelectric transmission direction, wherein:
the transmitting circuit (221) is configured to acquire communication data and analyze the communication data into an electrical signal, the transmitting light source (222) is configured to convert the electrical signal into an optical signal, and the collimating optical system (223) is configured to release the optical signal as collimated light.
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