An unmanned aerial vehicle (UAV) mounted modular optical fiber pay-off device and the UAV
Patent Information
- Application Number
- CN202522134023.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-09
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-09
AI Technical Summary
[0003]现有技术中，为解决光纤放线问题，通常采用以下手段：（1）固定式放线器：通过机械卷轴手动控制放线速度，但无法适应无人机高速动态飞行；（2）车载式放线器：利用车辆搭载大型放线装置，体积庞大且不适用于无人机；（3）简易无人机挂载放线器：缺乏张力控制和防缠绕设计，易导致光纤断裂或信号衰减，导致传输电能或信号不稳定
1.设计的无人机挂载式模块化光纤放线器，通过挂载接头可以实现与无人机本体的连接，通过安装架可以作为转动安装轴和张力调节单元的安装基础，通过转动安装轴可以实现卷线轮的转动，通过卷线轮可以作为光纤的容线腔，由于卷线轮受无人机本体飞行位置和地面基站之间的距离影响，会被光纤主动拉扯实现转动，即卷线轮为被动出线，因此能够适应于高速飞行的无人机，并通过张力调节单元可以改变转动安装轴的转速，进而配合无人机本体的飞行速度实现光纤的张力调节，降低光纤出现缠绕的可能性，从而保障电能或信号传输的稳定性。
Smart Images
Figure CN224739609U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of unmanned aerial vehicle (UAV) technology, and in particular to a UAV-mounted modular fiber optic cable dispenser and the UAV itself. Background Technology
[0002] A drone is an unmanned aircraft controlled by radio remote control equipment or a self-contained program control device. A complete and working drone system includes not only the aircraft itself, but also the ground control system and communication link. Fiber optic drones refer to drones that are physically connected to the ground control station through a thin fiber optic cable to achieve data and power transmission.
[0003] In the prior art, the following methods are usually used to solve the problem of fiber optic cable laying: (1) Fixed cable laying device: The cable laying speed is manually controlled by mechanical reel, but it cannot adapt to the high-speed dynamic flight of UAVs; (2) Vehicle-mounted cable laying device: Large cable laying device is carried by vehicle, which is bulky and not suitable for UAVs; (3) Simple UAV-mounted cable laying device: It lacks tension control and anti-tangling design, which can easily lead to fiber breakage or signal attenuation, resulting in unstable transmission of power or signal. Utility Model Content
[0004] In order to adapt to high-speed flying drones and ensure the stability of power or signal transmission, this application provides a drone-mounted modular fiber optic cable dispenser and a drone.
[0005] This application provides a UAV-mounted modular fiber optic cable dispenser and a UAV, employing the following technical solution: In one aspect, this application provides a UAV-mounted modular fiber optic cable dispenser.
[0006] A UAV-mounted modular fiber optic cable dispenser includes: Mounting connector; Mounting bracket, which is connected to the mounting connector, has a cable outlet port at the end of the mounting bracket away from the mounting connector, and has an installation area on the mounting bracket; A rotating mounting shaft is rotatably connected to the mounting frame, and a winding wheel is connected to the rotating mounting shaft. The winding wheel is located in the mounting area and forms a wire-receiving cavity. A tension adjustment unit for changing the rotational speed of a rotating mounting shaft, the tension adjustment unit being connected to the mounting bracket and the rotating mounting shaft.
[0007] By adopting the above technical solution, the designed UAV-mounted modular fiber optic cable dispenser can be connected to the UAV body through the mounting connector. The mounting bracket can serve as the mounting base for the rotating mounting shaft and tension adjustment unit. The rotating mounting shaft enables the rotation of the winding wheel, which acts as the cable cavity for the fiber. Because the winding wheel is affected by the distance between the UAV's flight position and the ground base station, it is actively pulled by the fiber to achieve rotation, meaning the winding wheel passively delivers the cable. Therefore, it can adapt to high-speed flying UAVs. The tension adjustment unit can change the rotation speed of the rotating mounting shaft, thereby adjusting the fiber tension in conjunction with the UAV's flight speed, reducing the possibility of fiber entanglement, and ensuring the stability of power or signal transmission.
[0008] In one specific implementation scheme, the end of the mounting bracket away from the mounting joint is connected to a mounting shell, the mounting shell is hollow and has wire holes at both ends, and a tension sensor is installed inside the mounting shell.
[0009] By adopting the above technical solution, the designed mounting shell and tension sensor can detect the tension of the optical fiber and then feed it back to the flight control module on the UAV body, thereby obtaining a balance between the flight speed of the UAV body and the tension of the optical fiber, avoiding the situation where the UAV body flies too fast and breaks the optical fiber.
[0010] In one specific implementation, a conical wire cover is connected to the end of the mounting shell away from the mounting connector, and the inner cavity of the conical wire cover communicates with the inner cavity of the mounting shell through a wire hole.
[0011] By adopting the above technical solution, the designed conical conductor cover can facilitate the guidance of optical fiber output.
[0012] In one specific implementation, a fixed rod is connected to the mounting bracket, and two control guide wheels are rotatably connected to the fixed rod. The control guide wheels are located between the two ends of the winding wheel and the two connecting lines of the output port, and a wire gap is formed between the two control guide wheels. The optical fiber is emitted from the winding wheel, passes through the wire gap, and is output from the output port.
[0013] By adopting the above technical solution, the designed fixed rod and control guide wheel are designed so that the optical fiber is wound on the winding wheel simultaneously along the circumference and axis. Therefore, when the winding wheel rotates to release the optical fiber, the angle of the optical fiber relative to the output port will change continuously. Therefore, the control guide wheel is needed as an intermediate angle adjustment component to keep the angle of the optical fiber passing through the output port within a reasonable range and reduce the possibility of friction between the optical fiber and the edge of the output port.
[0014] In one specific implementation, a sliding block is rotatably connected to one end of the control wheel, and the sliding block slides along the axial direction of the rotating mounting shaft on the fixed rod. A return spring is provided between the fixed rod and the sliding block, and the return spring is used to move the control wheel toward the vertical plane where the cable outlet is located.
[0015] By adopting the above technical solution, the designed sliding block and reset spring can work together to push the control guide wheel toward the vertical plane where the output port is located, thereby making the incident angle of the optical fiber as small as possible when it passes through the output port. It can also serve as a tensioning structure for the optical fiber, playing a certain role in adjusting the tension of the optical fiber.
[0016] Secondly, this application provides a drone.
[0017] A drone, comprising: UAV-mounted modular fiber optic cable dispenser; The drone body is connected to the mounting connector. By adopting the above technical solution, the designed drone can be connected to the drone body via a mounting connector. The mounting bracket serves as the mounting base for the rotating mounting shaft and tension adjustment unit. The rotating mounting shaft enables the rotation of the winding reel, which acts as a cavity for the optical fiber. Because the winding reel is affected by the distance between the drone's flight position and the ground base station, it is actively pulled by the optical fiber to achieve rotation, meaning the winding reel passively produces the fiber. Therefore, it can adapt to high-speed drones. Furthermore, the tension adjustment unit can change the rotation speed of the rotating mounting shaft, thereby adjusting the tension of the optical fiber in conjunction with the drone's flight speed. This reduces the possibility of optical fiber entanglement, thus ensuring the stability of power or signal transmission.
[0018] In one specific implementation, the drone body is detachably and fixedly connected to the mounting connector.
[0019] By adopting the above technical solution, the designed mounting connector that can be detachably and fixedly connected to the UAV body can realize the overall quick disassembly of the modular fiber optic cable dispenser, thereby facilitating rapid replacement.
[0020] In one specific implementation scheme, the mounting bracket is connected to a mounting shell at one end away from the mounting connector. The mounting shell is hollow and has wire holes at both ends. A tension sensor is installed inside the mounting shell and is electrically connected to the flight control module inside the UAV body.
[0021] By adopting the above technical solution, the tension sensor designed to be electrically connected to the flight control module inside the UAV body can transmit the detected fiber tension data to the flight control module, thereby facilitating the flight control module to adjust the flight speed of the UAV body, thus reducing the possibility of fiber entanglement and the possibility of fiber breakage.
[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The designed UAV-mounted modular fiber optic cable dispenser connects to the UAV via a mounting connector. A mounting bracket serves as the base for the rotating mounting shaft and tension adjustment unit. The rotating mounting shaft allows the winding reel to rotate, which acts as a housing for the fiber optic cable. Because the winding reel's rotation is influenced by the distance between the UAV's flight position and the ground base station, it is actively pulled by the fiber optic cable, resulting in passive cable delivery. This design is suitable for high-speed UAVs. The tension adjustment unit changes the rotational speed of the mounting shaft, thus adjusting the fiber optic tension in accordance with the UAV's flight speed. This reduces the possibility of fiber entanglement, ensuring the stability of power or signal transmission.
[0023] 2. The designed UAV-mounted modular fiber optic cable dispenser, through the installation shell and tension sensor, can detect the tension of the fiber and then feed it back to the flight control module on the UAV body, thereby achieving a balance between the flight speed of the UAV body and the tension of the fiber, avoiding the situation where the fiber is broken due to the excessive flight speed of the UAV body.
[0024] 3. The designed UAV-mounted modular fiber optic cable dispenser uses a fixed rod and a control guide wheel. Since the fiber optic cable is wound on the winding wheel simultaneously along the circumference and axis, the angle of the fiber optic cable relative to the output port will continuously change when the winding wheel rotates to release the fiber optic cable. Therefore, the control guide wheel is needed as an intermediate angle adjustment component to keep the angle of the fiber optic cable passing through the output port within a reasonable range and reduce the possibility of friction between the fiber optic cable and the edge of the output port. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the UAV-mounted modular fiber optic cable dispenser according to an embodiment of this application.
[0026] Figure 2 yes Figure 1 A sectional view.
[0027] Figure 3 yes Figure 1 A three-dimensional structural diagram.
[0028] Figure 4 yes Figure 3 A magnified structural diagram of part A in the diagram.
[0029] Figure 5 The drone in this embodiment of the application has a drone-mounted modular fiber optic cable dispenser.
[0030] Explanation of reference numerals in the attached drawings: 1. Mounting connector; 2. Mounting bracket; 3. Rotary mounting shaft; 4. Winding reel; 5. Tension adjustment unit; 6. Mounting housing; 7. Tension sensor; 8. Conical wire cover; 9. Fixing rod; 10. Control guide wheel; 11. Sliding block; 12. Return spring; 13. UAV body. Detailed Implementation
[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.
[0032] This application discloses a UAV-mounted modular fiber optic cable dispenser and a UAV.
[0033] In one aspect, embodiments of this application disclose a UAV-mounted modular fiber optic cable dispenser.
[0034] Reference Figure 1 A modular fiber optic cable delivery device for drones includes a mounting connector 1, a mounting frame 2, a rotating mounting shaft 3, and a winding reel 4. The mounting connector 1 is used to connect to the drone body 13. The mounting frame 2 is fixedly connected to the mounting connector 1 by welding or bolting. The end of the mounting frame 2 away from the mounting connector 1 has a cable outlet port, and an installation area is formed on the mounting frame 2. The rotating mounting shaft 3 is rotatably connected to the mounting frame 2 via a bearing, and the rotating mounting shaft 3 passes through the winding reel 4 and is fixedly connected to the winding reel 4. The winding reel 4 is located within the installation area. The winding reel 4 has a cavity for accommodating optical fibers. It can be connected to the UAV body 13 through the mounting connector 1. The mounting bracket 2 can serve as the mounting base for the rotating mounting shaft 3 and the tension adjustment unit 5. The rotating mounting shaft 3 can realize the rotation of the winding reel 4. The winding reel 4 can serve as the cavity for optical fibers. Since the winding reel 4 is affected by the distance between the flight position of the UAV body 13 and the ground base station, it will be actively pulled by the optical fiber to achieve rotation. That is, the winding reel 4 is passively output, so it can be adapted to high-speed flying UAVs.
[0035] Reference Figure 1Furthermore, since there may be a mismatch between the flight speed and the fiber optic cable laying speed during drone flight, the fiber optic cable may become too loose or too tight. The former can cause the fiber optic cable to become tangled and knotted, which is not conducive to the stable transmission of power and data. The latter can cause the fiber optic cable to break. Therefore, a tension adjustment unit 5 is also included. The tension adjustment unit 5 is connected to the mounting bracket 2 and to the rotating mounting shaft 3. It is used to change the rotation speed of the rotating mounting shaft 3, thereby changing the cable laying speed of the winding wheel 4. In this application, the tension adjustment unit 5 can be a hysteresis damper or a friction plate damper, or other structures that can change the rotation speed of the rotating mounting shaft 3.
[0036] Reference Figure 2 Furthermore, a mounting shell 6 is welded and fixed to the end of the mounting bracket 2 away from the mounting connector 1. The mounting shell 6 is hollow and has wire holes at both ends. The mounting area is connected to the inner cavity of the mounting shell 6 through the wire outlet and the wire holes. A tension sensor 7 is bolted inside the mounting shell 6. Furthermore, a wire breakage sensor can also be bolted inside the mounting shell 6. The state of the optical fiber is detected in real time by the tension sensor 7 and the wire breakage sensor, and the detection data is transmitted to the flight control module on the UAV body 13.
[0037] Reference Figure 2 A conical wire cover 8 is welded to the end of the mounting shell 6 away from the mounting joint 1. The inner cavity of the conical wire cover 8 is connected to the inner cavity of the mounting shell 6 through a wire hole, and the inner diameter of the conical wire cover 8 gradually increases from the end near the mounting joint 1 to the end near the rotating mounting shaft 3.
[0038] Reference Figure 3 and Figure 4 Specifically, a fixing rod 9 is welded and fixed on the mounting bracket 2. The fixing rod 9 is located on the side of the winding wheel 4 away from the mounting connector 1. Two control guide wheels 10 are rotatably connected to the fixing rod 9. The rotation axis of the control guide wheels 10 is set perpendicular to the rotation axis of the winding wheel 4. The two ends of the winding wheel 4 are respectively connected to the outlet port. The control guide wheels 10 are located between the two connecting lines, and a wire gap is formed between the two control guide wheels 10. After the optical fiber is emitted from the winding wheel 4, it passes through the wire gap and is output from the outlet port. Since the optical fiber is wound on the winding wheel 4 simultaneously along the circumference and axis, the angle of the optical fiber relative to the outlet port will change continuously when the winding wheel 4 rotates to release the optical fiber. Therefore, the control guide wheels 10 are needed as intermediate angle adjustment components to keep the angle of the optical fiber passing through the outlet port within a reasonable range and reduce the possibility of friction between the optical fiber and the edge of the outlet port.
[0039] Reference Figure 4One end of the control guide wheel 10 is rotatably connected to a sliding block 11. The sliding block 11 is sleeved on the fixed rod 9 and slidably connected to the fixed rod 9. The sliding block 11 slides along the axial direction of the rotating mounting shaft 3. A return spring 12 abuts between the fixed rod 9 and the sliding block 11. The return spring 12 is sleeved on the fixed rod 9 and is used to move the control guide wheel 10 toward the vertical plane where the outlet port is located, that is, to bring the two control guide wheels 10 closer to each other. Through the cooperation of the sliding block 11 and the return spring 12, the control guide wheel 10 can be pushed toward the vertical plane where the outlet port is located, thereby making the incident angle of the optical fiber when passing through the outlet port as small as possible. It can also serve as a tensioning structure for the optical fiber, playing a certain role in adjusting the tension of the optical fiber.
[0040] The implementation principle of the UAV-mounted modular fiber optic cable delivery device in this embodiment is as follows: The device is connected to the UAV body 13 via a mounting connector 1. A certain length of optical fiber is pre-wound onto the winding reel 4. The fiber passes through the conductor gap, the exit port, and the threading hole sequentially, exiting from the lower end of the conical conductor cover 8 and connecting to the ground base station. During flight, the winding reel 4 is passively rotated by the tension of the optical fiber. Simultaneously, the rotation speed of the rotating mounting shaft 3 is adjusted via the tension adjustment unit 5, ensuring the optical fiber is neither too loose nor too tight. The state of the optical fiber is detected in real time by a tension sensor 7 and a wire breakage sensor, and the detected data is transmitted to the flight control module on the UAV body 13, thereby correspondingly changing the UAV's... The flight speed of the drone body 13; the connection with the drone body 13 can be achieved through the mounting connector 1; the mounting bracket 2 can serve as the mounting base for the rotating mounting shaft 3 and the tension adjustment unit 5; the rotating mounting shaft 3 can realize the rotation of the winding wheel 4; the winding wheel 4 can serve as the cable cavity for the optical fiber; since the winding wheel 4 is affected by the distance between the flight position of the drone body 13 and the ground base station, it will be actively pulled by the optical fiber to achieve rotation, that is, the winding wheel 4 is passive cable output, so it can adapt to the high-speed flight of the drone; and the rotation speed of the rotating mounting shaft 3 can be changed through the tension adjustment unit 5, thereby adjusting the tension of the optical fiber in conjunction with the flight speed of the drone body 13, reducing the possibility of optical fiber entanglement, and thus ensuring the stability of power or signal transmission.
[0041] Secondly, embodiments of this application disclose an unmanned aerial vehicle (UAV).
[0042] Reference Figure 5A drone includes a drone body 13 and a drone-mounted modular fiber optic cable dispenser as disclosed in the first aspect of the embodiments of this application. The drone body 13 is connected to a mounting connector 1. Furthermore, in order to facilitate the quick installation or quick disassembly of the mounting modular fiber optic cable dispenser and the drone body 13, so as to facilitate the replacement of the mounting modular fiber optic cable dispenser, the drone body 13 and the mounting connector 1 are detachably and fixedly connected. In this application, the connection between the drone body 13 and the mounting connector 1 can be a bolt connection, a quick-release buckle structure, or other methods that can achieve a detachable and fixed connection.
[0043] Reference Figure 5 Furthermore, a mounting shell 6 is welded and fixed to the end of the mounting bracket 2 away from the mounting connector 1. The mounting shell 6 is hollow, and both ends of the mounting shell 6 have wire holes. The mounting area is connected to the inner cavity of the mounting shell 6 through the wire outlet port and the wire holes. A tension sensor 7 is bolted inside the mounting shell 6. Furthermore, a wire breakage sensor can also be bolted inside the mounting shell 6. Both the tension sensor 7 and the wire breakage sensor are electrically connected to the flight control module on the UAV body 13. The tension sensor 7 and the wire breakage sensor detect the status of the optical fiber in real time and transmit the detection data to the flight control module on the UAV body 13.
[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A drone-mounted modular fiber optic pay-off machine, characterized by: include: Mounting connector (1); Mounting bracket (2), which is connected to the mounting connector (1), has a cable outlet port at one end away from the mounting connector (1), and has an installation area on the mounting bracket (2); Rotate the mounting shaft (3), which is rotatably connected to the mounting frame (2), and a winding wheel (4) is connected to the rotating mounting shaft (3). The winding wheel (4) is located in the mounting area and forms a wire-receiving cavity. A tension adjustment unit (5) for changing the rotational speed of the rotating mounting shaft (3), the tension adjustment unit (5) is connected to the mounting bracket (2), and the tension adjustment unit (5) is connected to the rotating mounting shaft (3).
2. The UAV-mounted modular fiber optic pay-out device of claim 1, wherein: The mounting bracket (2) is connected to a mounting shell (6) at one end away from the mounting connector (1). The mounting shell (6) is hollow and has wire holes at both ends. A tension sensor (7) is installed inside the mounting shell (6).
3. The UAV-mounted modular fiber optic cable dispenser according to claim 2, characterized in that: The mounting housing (6) is connected to a conical wire cover (8) at the end away from the mounting connector (1), and the inner cavity of the conical wire cover (8) is connected to the inner cavity of the mounting housing (6) through a wire hole.
4. The UAV-mounted modular fiber optic pay-out device of claim 1, wherein: The mounting bracket (2) is connected to a fixed rod (9), and two control rods (10) are rotatably connected to the fixed rod (9). The control rods (10) are located between the two ends of the winding wheel (4) and the two connecting lines of the outlet port, and a wire gap is formed between the two control rods (10). The optical fiber is emitted from the winding wheel (4), passes through the wire gap, and is output from the outlet port.
5. The UAV-mounted modular fiber optic line spooler of claim 4, wherein: One end of the control wheel (10) is rotatably connected to a sliding block (11), and the sliding block (11) slides along the axial direction of the rotating mounting shaft (3) on the fixed rod (9). A return spring (12) is provided between the fixed rod (9) and the sliding block (11). The return spring (12) is used to make the control wheel (10) move toward the vertical plane where the cable outlet is located.
6. A drone, characterized by: include: The UAV-mounted modular fiber optic cable dispenser as described in any one of claims 1-5; The UAV body (13) is connected to the mounting connector (1).
7. The drone of claim 6, wherein: The UAV body (13) is detachably and fixedly connected to the mounting connector (1).
8. The drone of claim 6, wherein: The mounting bracket (2) is connected to a mounting shell (6) at one end away from the mounting connector (1). The mounting shell (6) is hollow and has wire holes at both ends. A tension sensor (7) is installed inside the mounting shell (6). The tension sensor (7) is electrically connected to the flight control module inside the UAV body (13).