An optical fiber based underwater communication transmission device

Abstract

This invention provides an underwater communication transmission device based on optical fiber, comprising a surface communication device and an underwater communication device, connected by optical fiber. The surface communication device includes a remote communication module, a first optical fiber transceiver module, a data conversion module, and a first power module. The underwater communication module includes a second optical fiber transceiver module, a signal conversion module, and a second power module. The surface communication device is mounted on a floating base. The floating base includes a supporting component, around which retractable cantilever arms are arranged. The cantilever arms slide against the supporting component, and a spring and a locking mechanism are provided between the cantilever arms and the supporting component. A buoyancy component is provided at one end of the cantilever arms. This invention achieves long-distance transmission between underwater network equipment and ground base stations through underwater optical fiber transmission and surface electromagnetic communication, effectively improving the underwater signal transmission speed.

Description

Technical Field

[0001] This utility model relates to the field of underwater communication technology, and in particular to an underwater communication transmission device based on optical fiber. Background Technology

[0002] The existing underwater communication methods mainly include the following: acoustic communication, electromagnetic communication, and optical communication.

[0003] Acoustic communication is currently the mainstream underwater communication method (with relatively long propagation distance), but high-frequency sound waves attenuate significantly (e.g., 10kHz sound waves attenuate by about 10dB per kilometer in seawater), resulting in high data rates but communication distances of only a few hundred meters. Low-frequency sound waves (frequency less than 1kHz) can propagate for tens of kilometers, but the data transmission rate is extremely low (only a few bps). In optical communication technology, blue and green light can propagate for about 50-200 meters in clear water, but may travel less than 10 meters in turbid seawater, greatly affected by suspended particles, algae, etc. Electromagnetic wave communication is also affected by the strong absorption of electromagnetic waves by seawater (e.g., 1MHz electromagnetic waves penetrate only about 1 meter in seawater). Only extremely low frequency (ELF) or very low frequency (VLF) electromagnetic waves can achieve communication at the hundred-meter level, but the bandwidth is extremely narrow, data transmission is slow, and only simple commands can be transmitted.

[0004] Therefore, existing underwater communication methods suffer from severe underwater signal attenuation, short underwater transmission distance, and slow data transmission, making it difficult to achieve long-distance communication. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies and provide an underwater communication transmission device based on optical fiber.

[0006] The purpose of this utility model is achieved through the following technical solution: an underwater communication transmission device based on optical fiber, comprising a surface communication device and an underwater communication device, wherein the underwater communication device and the surface communication device are connected by optical fiber; the surface communication device comprises a remote communication module, a first optical fiber transceiver module, a data conversion module and a first power supply module; the underwater communication module comprises a second optical fiber transceiver module, a signal conversion module and a second power supply module.

[0007] The surface communication device is installed on a floating base; the floating base includes a supporting component, and retractable cantilever arms are provided around the supporting component. The cantilever arms are slidably engaged with the supporting component, and a spring and a buckle locking mechanism are provided between the cantilever arms and the supporting component; a buoyancy component is provided at one end of the cantilever arms.

[0008] Preferably, the remote communication module is a 4G communication module or a 5G communication module.

[0009] Preferably, the supporting component is provided with a guide hole, and the cantilever arm is slidably connected in the guide hole.

[0010] Preferably, one end of the cantilever arm is provided with a spring hole, one end of the spring is connected in the spring hole, and the other end of the spring is in contact with the bottom of the guide hole.

[0011] Preferably, a limiting sleeve is provided in the guide hole, through which the cantilever arm passes; a limiting end is provided at one end of the cantilever arm that extends into the guide hole; when the cantilever arm is in the extended state, the limiting end contacts the limiting sleeve.

[0012] Preferably, the buckle locking mechanism includes a first buckle body disposed on the side of the cantilever arm and a second buckle body disposed on the outside of the bearing component and corresponding to the first buckle body.

[0013] Preferably, the buoyancy component is spherical and has a hollow structure.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model achieves long-distance transmission between underwater network equipment and ground base stations by combining underwater optical fiber transmission with above-water electromagnetic communication, which greatly reduces signal attenuation during transmission and effectively improves the underwater signal transmission speed.

[0016] 2. The cantilever arm on the floating base is telescopic. When the cantilever arm is in the retracted state, the spring is compressed, and the latching mechanism is locked. The latching mechanism maintains the cantilever arm in its current state. At this time, because the extension distance of the cantilever arm is short, the external volume occupied by the floating base is small, which facilitates the transportation of the floating base. When it is necessary to deploy the floating base on the water surface, first open the latching mechanism. Under the action of the spring, the cantilever arm will automatically extend outward and reach the extended state. At this time, the extension distance of the cantilever arm reaches the maximum. Through the extension of the cantilever arm, the floating base can float stably on the water surface, improving its resistance to wind and waves. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the floating base structure.

[0019] Figure 3 This is a partial cross-sectional view of the floating base.

[0020] Figure 4 This is a schematic diagram of the module connections for a surface communication device.

[0021] Figure 5 This is a schematic diagram of the module connections for an underwater communication device.

[0022] In the diagram: 1. Floating base; 1-1. Bearing component; 1-2. Cantilever arm; 1-3. Buoyancy component; 1-4. First latching body; 1-5. Second latching body; 1-6. Guide hole; 1-7. Limiting sleeve; 1-8. Spring; 2. Surface communication device; 3. Underwater netting equipment; 4. Underwater communication device; 5. Optical fiber. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0024] like Figures 1 to 5 As shown, an underwater communication transmission device based on optical fiber 5 includes a surface communication device 2 and an underwater communication device 4, with the underwater communication device 4 connected to the surface communication device 2 via optical fiber 5. The surface communication device 2 includes a remote communication module, a first optical fiber 5 transceiver module, a data conversion module, and a first power supply module. The underwater communication module includes a second optical fiber 5 transceiver module, a signal conversion module, and a second power supply module.

[0025] The connection methods of each module in the surface communication device 2 are as follows: Figure 4 As shown, the connection method of each module in the underwater communication device 4 is as follows: Figure 5 As shown.

[0026] The surface communication device 2 is installed on the floating base 1. The floating base 1 includes a supporting component 1-1, and retractable cantilever arms 1-2 are arranged around the supporting component 1-1. The cantilever arms 1-2 are slidably engaged with the supporting component 1-1. A spring 1-8 and a buckle locking mechanism are arranged between the cantilever arms 1-2 and the supporting component 1-1. A buoyancy component 1-3 is arranged at one end of the cantilever arms 1-2.

[0027] In this invention, signal communication transmission below the water surface is achieved via optical fiber 5, which enables data transmission between the underwater communication device 4 and the surface communication device 2. The attenuation of optical fiber 5 in water is far lower than that of traditional communication methods, enabling stable communication over distances of tens or even hundreds of kilometers underwater, completely solving the bottleneck of short distances in traditional underwater communication. Signal communication above the water surface is achieved through a remote communication module. This module uses electromagnetic communication to achieve long-distance communication with a ground base station.

[0028] By using underwater fiber optic 5 transmission and above-water electromagnetic communication, long-distance transmission between underwater network device 3 and ground base station is achieved, which greatly reduces signal attenuation during transmission and effectively improves underwater signal transmission speed.

[0029] The surface communication device 2 is mounted on a floating base 1, which provides buoyancy to the device, allowing it to float stably on the water surface. The cantilever arm 1-2 on the floating base 1 is telescopic, switching between extended and retracted states. When the cantilever arm 1-2 is retracted, the spring 1-8 is compressed, and the locking mechanism is locked, maintaining the cantilever arm 1-2 in its current state. Because the extension distance of the cantilever arm 1-2 is short, the external volume occupied by the floating base 1 is small, facilitating its transportation. When the floating base 1 needs to be deployed on the water surface, the locking mechanism is first opened, and the cantilever arm 1-2 automatically extends outward under the action of the spring 1-8, reaching its maximum extension distance. This extension of the cantilever arm 1-2 allows the floating base 1 to float stably on the water surface, improving its resistance to wind and waves. The buoyancy components 1-3 provide buoyancy for the entire floating base 1.

[0030] In this embodiment, the remote communication module is a 4G communication module or a 5G communication module.

[0031] Specifically, the load-bearing component 1-1 is provided with a guide hole 1-6, and the cantilever arm 1-2 is slidably connected in the guide hole 1-6. One end of the cantilever arm 1-2 is provided with a spring hole, one end of the spring 1-8 is connected in the spring hole, and the other end of the spring 1-8 is in contact with the bottom of the guide hole 1-6.

[0032] Furthermore, a limiting sleeve 1-7 is provided in the guide hole 1-6, through which the cantilever arm 1-2 passes; a limiting end is provided at one end of the cantilever arm 1-2 that extends into the guide hole 1-6; when the cantilever arm 1-2 is in the extended state, the limiting end contacts the limiting sleeve 1-7.

[0033] The latching mechanism includes a first latching body 1-4 disposed on the side of the cantilever arm 1-2 and a second latching body 1-5 disposed on the outside of the bearing component 1-1 and corresponding to the first latching body 1-4. When the cantilever arm 1-2 is in the retracted state, the first latching body 1-4 on the side of the cantilever arm 1-2 is connected to the second latching body 1-5 on the extending component, thereby maintaining the cantilever arm 1-2 in the current state; when it is necessary to switch the cantilever arm 1-2 from the retracted state to the extended state, simply move the second latching body 1-5 to disengage it from the first latching body 1-4, thereby opening the latching mechanism. At this time, the cantilever arm 1-2 automatically extends outward under the action of the spring 1-8.

[0034] In this embodiment, the buoyancy component 1-3 is spherical and has a hollow structure.

[0035] This utility model is not limited to the above-described preferred embodiments. Anyone can derive other forms of products under the guidance of this utility model. However, regardless of any changes made in their shape or structure, any technical solution that is the same as or similar to this application falls within the protection scope of this utility model.

Claims

1. An underwater communication transmission device based on optical fiber, characterized in that, It includes a surface communication device and an underwater communication device, with the underwater communication device and the surface communication device connected by optical fiber; the surface communication device includes a remote communication module, a first optical fiber transceiver module, a data conversion module, and a first power supply module; the underwater communication module includes a second optical fiber transceiver module, a signal conversion module, and a second power supply module. The surface communication device is installed on a floating base; the floating base includes a supporting component, and retractable cantilever arms are provided around the supporting component. The cantilever arms are slidably engaged with the supporting component, and a spring and a buckle locking mechanism are provided between the cantilever arms and the supporting component; a buoyancy component is provided at one end of the cantilever arms.

2. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, The remote communication module is a 4G communication module or a 5G communication module.

3. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, The load-bearing component is provided with a guide hole, and the cantilever arm is slidably connected in the guide hole.

4. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, One end of the cantilever arm is provided with a spring hole, one end of the spring is connected in the spring hole, and the other end of the spring is in contact with the bottom of the guide hole.

5. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, A limiting sleeve is provided in the guide hole, and the cantilever arm passes through the limiting sleeve; a limiting end is provided at one end of the cantilever arm that extends into the guide hole; when the cantilever arm is in the extended state, the limiting end contacts the limiting sleeve.

6. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, The buckle locking mechanism includes a first buckle body disposed on the side of the cantilever arm and a second buckle body disposed on the outside of the load-bearing component and corresponding to the first buckle body.

7. The underwater communication transmission device based on optical fiber according to claim 1, characterized in that, The buoyancy component is spherical and has a hollow structure.

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