Optical fiber disc device for optical fiber guidance unmanned aerial vehicle and optical fiber guidance unmanned aerial vehicle

Abstract

The utility model provides an optical fiber disc device used for an optical fiber guidance unmanned aerial vehicle and the optical fiber guidance unmanned aerial vehicle, the optical fiber disc device comprises an optical fiber disc, the center of the optical fiber disc is provided with a hollow cavity, the outer surface of the optical fiber disc is used for winding optical fibers, the optical fibers wound on the optical fiber disc respectively lead out optical fiber heads from the outer side and the inner side, and the inner side optical fiber head passes through the hollow cavity; the outer optical fiber head is in communication connection with the unmanned aerial vehicle ground station; the optical transceiver is arranged on the disc surface of the optical fiber disc, and the inner side optical fiber head is connected to the optical transceiver; the electric slip ring is located in the hollow cavity of the optical fiber disc, the upper portion of the electric slip ring can synchronously rotate along with the optical fiber disc, the upper portion of the electric slip ring is connected with the optical transceiver, and the lower portion is connected with the unmanned aerial vehicle. Optical signals are converted into electric signals through the optical transmitter and receiver, then the electric signals are connected with the electric slip ring, the upper portion of the electric slip ring can rotate along with the optical fiber disc, driven rotation of a communication line and the optical fiber disc is achieved, and the communication quality of the optical fiber guidance unmanned aerial vehicle is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber guided unmanned aerial vehicles (UAVs), and in particular to an optical fiber disk device for optical fiber guided UAVs and the optical fiber guided UAV. Background Art

[0002] Fiber-optic guided UAV is a new type of UAV combat system that uses fiber-optic communication technology to achieve remote control and real-time image transmission. It has the advantages of strong anti-interference ability, high transmission rate, high image clarity and high security, and has good application prospects in both military and civilian fields.

[0003] The traditional optical fiber is wound on the optical fiber disk, and has two optical fiber heads, one on the outer layer and the other on the inner layer. Figure 1 As shown in the figure, A indicates the inner fiber optic head's outlet position, and B indicates the outer fiber optic head's outlet position. In fiber-guided drone applications, the outer fiber optic head is typically connected to the ground terminal, while the inner fiber optic head is connected to the drone terminal. However, during drone flight, the fiber optic lead-out process causes the fiber reel to rotate, causing the inner fiber optic head to twist and tangle, resulting in fiber damage or even breakage. Therefore, it is essential to design a fiber payout and interface adaptation solution suitable for drones.

[0004] A Chinese invention patent application, publication number CN106005462A, discloses a system for tethering drones and a method for tethering drones using the system. The system includes a tethering compartment for housing the drone; a cable for communicating with and transmitting power to the drone; and a cable retraction device for retracting and releasing the cable. The cable retraction device is disposed within the interior of the compartment and connected to the tethered drone via the cable. The cable retraction device further includes an optoelectronic integrated slip ring connected to the cable, comprising one or more electrical conductors for carrying high voltage and high current, and one or more optoelectronic cores for data communication. The slip rings used in this patent are optoelectronic integrated slip rings, which directly connect the optoelectronic integrated slip ring to the cable without converting optoelectronic signals. Therefore, the system cannot be used directly for fiber-optic guided drones.

[0005] Chinese invention patent application publication number CN108205881A discloses an optoelectronic communication system for a tethered unmanned aerial vehicle (UAV), comprising an onboard user device (UE), a ground user device (GUE), an onboard optical terminal (FTE), a ground optical terminal (GTE), and an optoelectronic composite cable connecting the onboard and ground optical terminals. The onboard user device (FTE) includes one or more of a flight control unit, a pod, an airborne communication base station, and a differential GPS airborne terminal carried by the tethered UAV. The onboard optical terminal (FTE) is connected to the FTE for converting electrical and optical signals and includes at least one pair of optical fibers. The ground user device (GUE) includes one or more of a remote control device, a ground station control system, an image processing and analysis system, and a base station ground system. The ground optical terminal (GTE) is connected to the GTE for converting electrical and optical signals and includes at least one pair of optical fibers. The patent does not detail the installation method for the optical terminal and is primarily designed for tethered UAVs. Its structure is not suitable for direct use in fiber-guided UAVs. Utility Model Content

[0006] In view of the defects in the prior art, the purpose of the present invention is to provide a fiber optic disk device for fiber optic guided drones and a fiber optic guided drone.

[0007] The utility model is realized through the following technical solutions:

[0008] According to one aspect of the present invention, there is provided a fiber optic disc device for fiber optic guided drones, comprising:

[0009] An optical fiber reel having a hollow cavity in the center thereof, the outer surface of the optical fiber reel being used for winding optical fibers, the optical fibers wound on the optical fiber reel being led out from the outer and inner sides thereof, the inner optical fiber reel passing through the hollow cavity, and the outer optical fiber reel being communicatively connected to the UAV ground station;

[0010] An optical terminal, the optical terminal being arranged on the disk surface of the optical fiber disk, the inner optical fiber head being connected to the optical terminal, and the optical terminal being used to realize mutual conversion between optical signals and electrical signals;

[0011] An electric slip ring is located in the hollow cavity of the optical fiber disk. The electric slip ring includes an upper part and a lower part. The upper part of the electric slip ring can rotate synchronously with the optical fiber disk. The upper part of the electric slip ring is connected to the optical terminal, and the lower part is connected to the drone.

[0012] Furthermore, a hole is provided on the side wall of the optical fiber disc, and the inner optical fiber head is led out from the hole.

[0013] Optionally, the optical terminal is fixed to the optical fiber disk by screws.

[0014] Optionally, the optical terminal is fixed to the optical fiber reel by means of adhesive tape.

[0015] Furthermore, the optical terminal is provided with an optical fiber head interface and a circuit port, the inner optical fiber head is connected to the optical fiber head interface, and the circuit port is used to output the electrical signal that completes the optical-electrical signal conversion.

[0016] Furthermore, the upper portion of the electric slip ring is fixedly connected to the optical fiber disk via a fixing plate, one end of the fixing plate is fixedly connected to the disk surface of the optical fiber disk, and the other end is fixedly connected to the upper portion.

[0017] Furthermore, the upper part is a rotor, the lower part is a stator, and the upper part is connected to the lower part through a bearing.

[0018] Furthermore, a first circuit interface is provided at the end of the upper portion, and a second circuit interface is provided at the end of the lower portion, and the first circuit interface is electrically connected to the second circuit interface.

[0019] Furthermore, the circuit port is connected to the first circuit interface via an optical terminal leading out an electric wire, and the second circuit interface is circuit-connected to the drone.

[0020] According to another aspect of the present invention, a fiber-optic guided UAV is provided, which includes the above-mentioned fiber-optic disk device for fiber-optic guided UAV.

[0021] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0022] This utility model converts optical signals into electrical signals through an optical terminal, which are then connected to an electrical slip ring. The electrical slip ring is applied during the release of optical fiber from a fiber optic reel. The upper portion of the electrical slip ring rotates with the reel, enabling the communication line and the optical reel to rotate in a driven manner. This solves the problem of optical fiber distortion, damage, or even breakage caused by the reel's rotation. This utility model allows the use of an optical reel to release optical fiber in drone-guided scenarios, eliminating the problems of twisting and tangling of the communication line at the inner fiber head due to the reel's rotation, thereby effectively improving the communication quality of fiber-optic-guided drones. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0024] Figure 1 It is a structural diagram of the optical fiber disk in the background technology;

[0025] Figure 2 This is a schematic diagram of the structure of the optical fiber disk device used for optical fiber guided drones in one embodiment of the utility model. Figure 1 ;

[0026] Figure 3 This is a schematic diagram of the structure of the optical fiber disk device used for optical fiber guided drones in one embodiment of the utility model. Figure 2 ;

[0027] Figure 4 The structure of the electric slip ring in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0028] Figure 5 The structure of the electric slip ring in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0029] Figure 6 This is a schematic structural diagram of the connection between the upper portion of the electric slip ring and the optical disk in one embodiment of the present invention.

[0030] In the figure: 1 is the optical fiber reel, 2 is the optical terminal, 3 is the electric slip ring, 31 is the upper part, 32 is the lower part, 4 is the hole, 5 is the optical fiber head interface, 6 is the circuit port, 7 is the first circuit interface, 8 is the second circuit interface, and 9 is the fixing plate. DETAILED DESCRIPTION

[0031] The present invention will be described in detail below with reference to specific embodiments. The following embodiments will help those skilled in the art further understand the present invention, but are not intended to limit the present invention in any way. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the scope of the present invention. These modifications and improvements are all within the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. Moreover, the terms "first", "second", etc. are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0033] Reference Figure 2 and Figure 3 The figure shows a schematic diagram of a fiber optic reel device for optical fiber guidance of a drone, according to one embodiment of the present invention. The device comprises a fiber optic reel 1, an optical terminal 2, and an electrical slip ring 3. The fiber optic reel 1 has a hollow cavity at its center and a reel surface at each end. The outer surface of the reel is used to wind optical fibers. The wound optical fibers on the reel are led out from both the outer and inner sides of the reel. The inner fiber head passes through the hollow cavity, and the outer fiber head communicates with the drone ground station. The optical terminal 2 is mounted on the reel surface of the reel 1. The inner fiber head passes through the hollow cavity and then connects to the optical terminal 2. The optical terminal 2 is used to convert optical and electrical signals. The electrical slip ring 3 is located within the hollow cavity of the fiber optic reel 1 and comprises an upper portion 31 and a lower portion 32. The upper portion 31 of the electrical slip ring 3 rotates synchronously with the fiber optic reel 1. The upper portion 31 of the electrical slip ring 3 is connected to the optical terminal 2, while the lower portion 32 is connected to the drone.

[0034] After the optical fiber is wound on the optical fiber reel 1, the inner optical fiber head is close to the hollow cavity. In some embodiments, a hole 4 is provided on the side wall of the optical fiber reel 1 to facilitate the lead-out of the optical fiber. The hole 4 serves as the inner exit of the optical fiber, and the inner optical fiber head is led out from the hole 4. The outer optical fiber head is directly connected to the UAV ground station for signal communication. In this way, the optical fiber wound on the optical fiber reel 1 can be led out from the outside and the inside of the optical fiber head respectively.

[0035] In some optional embodiments, the optical terminal 2 is fixed to the fiber optic reel 1 with screws, ensuring that its position on the reel 1 is not easily displaced by external forces or vibrations, thereby enhancing the stability of the entire system. When the optical terminal 2 or the fiber optic reel 1 needs to be repaired, the screws can be easily removed, the optical terminal 2 can be removed for operation, and then re-fixed after completion, making maintenance more convenient. Furthermore, this system offers advantages such as high safety, strong adaptability, and reduced signal loss.

[0036] In some optional implementations, the optical terminal 2 is fixed to the optical fiber reel 1 by means of adhesive tape, which has the advantages of easy operation, high flexibility, and low cost.

[0037] The optical terminal 2 can convert optical signals into electrical signals. Specifically, the optical terminal 2 converts received optical signals into electrical signals. In some embodiments, the optical terminal 2 is provided with an optical fiber head interface 5 and a circuit port 6. The inner optical fiber head is connected to the optical fiber head interface 5. The optical fiber head interface 5 is used to receive the optical signal transmitted by the optical fiber head. After completing the optical-to-electrical signal conversion, the circuit port 6 is used to output the converted electrical signal.

[0038] In some embodiments, the upper portion 31 of the electric slip ring 3 is fixedly connected to the optical fiber reel 1 and rotates together with the optical fiber reel 1. The upper portion 31 is the rotating part, also known as the rotor; the rotor portion is usually connected to a rotating device, such as a motor or a rotating platform, through internal wires to transmit power or signals to the rotating device. The lower portion 32 is the fixed portion, also known as the stator. The stator portion is electrically connected to an external system through a cable or connector and usually includes a plurality of terminals for transmitting power or signals to an external device or power supply. The upper portion 31 is connected to the lower portion 32 through a bearing and can rotate freely. A series of conductive rings are embedded in the rotor, and conductive contacts (such as brushes) are provided inside the stator. The conductive rings maintain contact with the electrical contacts and are responsible for transmitting power or signals during rotation.

[0039] The upper portion 31 and lower portion 32 of the slip ring 3 each have a circuit interface. In some embodiments, a first circuit interface 7 is provided at the end of the upper portion 31, and a second circuit interface 8 is provided at the end of the lower portion 32. The first circuit interface 7 and the second circuit interface 8 are electrically connected. The circuit port 6 is connected to the first circuit interface 7 via an optical transceiver. The second circuit interface 8 is connected to a drone or other device.

[0040] In the above embodiment, the upper portion 31 of the slip ring 3 is fixed to the optical fiber disk 1 by a mechanical device or other fixing means, such as Figure 6 As shown, the optical fiber reel 1 is fixedly connected to the upper portion 31 via a fixing plate 9. This plate-like structure has one end fixedly attached to the optical fiber reel 1 and the other end fixedly connected to the upper portion 31. The optical terminal lead wire, connected to the first circuit interface 7 on the upper portion of the electrical slip ring 3, is connected to the circuit port 6 on the optical terminal end. When the optical fiber is pulled out, the optical fiber reel rotates, and the lead wire pulls the electrical slip ring 3 to rotate, preventing rotational distortion of the lead wire connected to the upper portion. The optical fiber head extending from the inner side of the optical fiber reel 1 rotates with the optical terminal 2 fixed to the optical fiber reel 1, preventing rotational distortion of the optical fiber.

[0041] In the above-described embodiment of the utility model, the upper portion of the electric slip ring 3 is a rotatable portion. When the fiber optic reel 1 rotates, the upper portion of the electric slip ring 3 rotates along with the optical terminal. The upper portion of the electric slip ring 3 is fixedly connected to the fiber optic reel 1 via a mechanical device or other fixing means, achieving synchronous rotational motion between the two. The electric slip ring 3 is applied during the process of releasing optical fiber from the fiber optic reel. The principle that the upper portion of the electric slip ring 3 can rotate along with the fiber optic reel 1 avoids problems such as twisting and tangling of the communication line caused by the rotation of the fiber optic reel 1. The upper portion 31 rotates along with the fiber optic reel 1, transmitting the electrical signal received by the first circuit interface 7 of the upper portion 31 to the second circuit interface 8 of the lower portion 32. The second circuit interface 8 of the lower portion 32 is connected to the drone or other equipment. During the process of releasing optical fiber from the fiber optic reel, problems such as twisting and tangling of the communication line at the inner optical fiber head caused by the rotation of the fiber optic reel 1 will not occur, thereby effectively improving the communication quality of the fiber-guided drone.

[0042] Another embodiment of the present invention provides a fiber-optic guided drone, comprising the aforementioned fiber-optic reel device for fiber-optic guided drones. A fiber optic head outlet is reserved within the fiber optic reel, from which the fiber optic head is led out from the inside of the reel and connected to an optical terminal. The optical terminal then leads an electrical wire to a circuit interface on the upper portion of an electric slip ring 3. This embodiment of the present invention provides an optoelectronic signal conversion interface adapter for the fiber optic reel. The electric slip ring 3 enables driven rotation of the communication line and the fiber optic reel, enabling the use of the fiber optic reel to release optical fibers in drone guidance scenarios. This overcomes the problems of existing fiber optic reels in drone applications, which can cause optical fiber distortion, damage, or even breakage due to the rotation of the reel.

[0043] Fiber-optic guidance technology can effectively avoid electromagnetic interference and improve the control accuracy and reliability of drones, thus possessing significant application value in both military and civilian fields. The above-described embodiment of the utility model, targeting unmanned aerial vehicles (UAVs), provides a design for fiber-optic payout and signal interface adaptation for UAVs. This effectively avoids fiber entanglement caused by the rotation of the fiber reel inside the fiber head. Combined with fiber-optic communication technology, it enables efficient and stable control and communication in complex electromagnetic environments.

[0044] The fiber optic reel assembly in the above-described embodiment of the present invention is mounted on a fiber-guided drone. The circuitry extending from the lower portion of the electric slip ring is connected to the drone, while the fiber optic head extending from the outer portion of the fiber optic reel is connected to the drone's ground station. The ground station transmits a signal, which, after passing through the optical fiber and the reel assembly, is transmitted to the drone for control. During drone flight, the ground station's pulling force on the optical fiber causes the reel to rotate, releasing more fiber. As the reel rotates, the upper portion of the electric slip ring follows suit, preventing problems such as twisting and tangling of the communication line caused by the reel's rotation.

[0045] In the aforementioned embodiment of the present invention, an optical terminal first converts the optical signal into an electrical signal, which is then connected to an electrical slip ring. The electrical slip ring is then used during the release of optical fiber from a fiber optic reel. The upper portion of the electrical slip ring rotates with the reel, enabling the communication line and the optical reel to rotate in a driven manner. This solves the problem of optical fiber distortion, damage, or even breakage caused by the rotation of the reel. This utility model enables the use of an optical reel to release optical fiber in drone guidance scenarios, eliminating the problems of twisting and tangling of the communication line at the inner fiber head due to the rotation of the reel, thereby effectively improving the communication quality of fiber-optic guided drones.

[0046] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A fiber optic disc device for fiber optic guided drones, characterized in that: include: An optical fiber reel having a hollow cavity in the center thereof, the outer surface of the optical fiber reel being used for winding optical fibers, the optical fibers wound on the optical fiber reel being led out from the outer and inner sides thereof, the inner optical fiber reel passing through the hollow cavity, and the outer optical fiber reel being communicatively connected to the UAV ground station; An optical terminal, the optical terminal being arranged on the disk surface of the optical fiber disk, the inner optical fiber head being connected to the optical terminal, and the optical terminal being used to realize mutual conversion between optical signals and electrical signals; An electric slip ring is located in the hollow cavity of the optical fiber disk. The electric slip ring includes an upper part and a lower part. The upper part of the electric slip ring can rotate synchronously with the optical fiber disk. The upper part of the electric slip ring is connected to the optical terminal, and the lower part is connected to the drone.

2. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: A hole is provided on the side wall of the optical fiber disc, and the inner optical fiber head is led out from the hole.

3. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: The optical terminal is fixed on the optical fiber disk by screws.

4. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: The optical terminal is fixed on the optical fiber disk by adhesive tape.

5. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: The optical terminal is provided with an optical fiber head interface and a circuit port. The inner optical fiber head is connected to the optical fiber head interface. The circuit port is used to output the electrical signal that completes the optical-electrical signal conversion.

6. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: The upper portion of the electric slip ring is fixedly connected to the optical fiber disc via a fixing plate, one end of the fixing plate is fixedly connected to the disc surface of the optical fiber disc, and the other end is fixedly connected to the upper portion.

7. The optical fiber disk device for optical fiber guided UAV according to claim 1, characterized in that: The upper part is a rotor, the lower part is a stator, and the upper part is connected to the lower part through a bearing.

8. The optical fiber disk device for optical fiber guided UAV according to claim 5, characterized in that: A first circuit interface is provided at the end of the upper portion, and a second circuit interface is provided at the end of the lower portion. The first circuit interface is electrically connected to the second circuit interface.

9. The optical fiber disk device for optical fiber guided UAV according to claim 8, characterized in that: The circuit port is connected to the first circuit interface through an optical terminal leading out an electric wire, and the second circuit interface is circuit-connected to the drone.

10. A fiber-optic guided drone, characterized in that: A fiber optic disc device for fiber optic guided drone comprising the device described in any one of claims 1-9.

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