Optical fiber transmission signal unmanned aerial vehicle relay ground display terminal control box

Abstract

The invention discloses an optical fiber transmission signal unmanned aerial vehicle relay ground display terminal control box, which relates to the technical field of unmanned aerial vehicle control, and comprises an ergonomic handheld box body, an in-box integrated power supply module, a signal processing module, a display module, an optical fiber exchange signal module, an optical fiber video / control signal module and a heat insulation assembly, the signal processing module is an optical fiber relay terminal processing center module, and the power supply module comprises a 12VBEC module, supports 3-8S power supply input and has overvoltage and overcurrent protection; the optical fiber switching signal module realizes bidirectional communication with the unmanned aerial vehicle and is matched with the ground wireless relay module to expand signal coverage; the heat insulation assembly separates the electronic component from the power module, carbon fiber materials reduce weight, and the metal heat conduction plate and the heat dissipation window guarantee heat dissipation. The display module supports 8-level brightness adjustment, and the box body interface cabin integrates multiple interfaces and is provided with a dustproof cover. The control box is high in integration degree, portable, reliable, stable in signal transmission and suitable for outdoor complex operation scenes.

Description

Technical Field

[0001] This invention relates to the field of unmanned aerial vehicle (UAV) control technology, and in particular to a control box for a ground display terminal for UAV relay using fiber optic signal transmission. Background Technology

[0002] With the widespread application of UAV technology in surveying and exploration, emergency rescue, power line inspection, and security monitoring, ground-based relay display and control equipment, as a core component of UAV systems, directly affects the stability, reliability, and efficiency of UAV operations. Currently, most UAV ground relay control terminals on the market adopt a separate design of "independent remote controller + mobile terminal (phone / tablet) + external signal receiving module," or suffer from imperfect integrated design, revealing numerous technical defects in practical applications and failing to meet the operational needs of complex scenarios.

[0003] First, existing ground-based equipment lacks portability and environmental adaptability. The modular structure requires users to assemble multiple devices and connect cables before operation, which is cumbersome and time-consuming, making it unsuitable for rapid deployment in the field. At the same time, most devices lack effective waterproof, dustproof, and shockproof designs, and have low-level shell protection, making them prone to failure in harsh outdoor environments such as rain, dust, and bumps, resulting in poor equipment durability.

[0004] Secondly, the stability and anti-interference capabilities of signal transmission need to be improved. The internal circuit layout of traditional ground terminals is messy, and the high-frequency radio frequency unit is not effectively isolated from the main processor, battery and other components, which easily generates serious electromagnetic interference. This causes problems such as stuttering, screen flickering and pixelation in the drone image transmission signal, affecting the clarity of the video and the accuracy of the control command transmission. In addition, some devices do not have a dedicated heat dissipation structure designed for high-heat components. When running under high load for a long time, they are prone to overheating, which can lead to performance throttling or even module damage, further reducing the stability of signal transmission.

[0005] Furthermore, there are limitations in functional expandability and battery life. Most existing devices are designed with fixed functions. If users need to achieve specific functions such as 4G / 5G blind spot coverage, RTK high-precision positioning, and large-capacity storage, they need to purchase different versions of the complete set of equipment, which increases the cost of use. At the same time, the built-in batteries are mostly non-removable, with limited battery life, which cannot meet the needs of long-term uninterrupted operation. Moreover, when a single module is damaged, the entire system needs to be repaired, resulting in low maintenance efficiency and high costs.

[0006] In addition, the visibility and ease of operation are poor when used outdoors. The displays of existing equipment are mostly designed at a fixed angle and lack effective sun protection measures, which can easily cause glare in strong outdoor light, making it difficult for operators to clearly see the video footage transmitted by the drone. At the same time, the equipment interfaces are scattered and lack protection, making them susceptible to dust and rain, and also making the connection of external devices cumbersome and affecting operational efficiency.

[0007] Finally, some devices suffer from insufficient power supply stability. The input power supply is mismatched with the operating voltage of the internal modules, and there is a lack of overvoltage and overcurrent protection mechanisms, which can easily damage the core modules when there are voltage fluctuations or circuit abnormalities. At the same time, the signal relay coverage is limited, and signal attenuation and interruption are likely to occur in long-distance operations or complex terrain environments, which limits the operating radius of the drone.

[0008] In summary, existing UAV relay ground display terminals have many shortcomings in terms of structural design, signal transmission, heat dissipation and anti-interference, functional expansion, outdoor adaptability and power supply protection. There is an urgent need for an integrated, highly reliable and highly adaptable ground display terminal control box to overcome the deficiencies of existing technologies and meet the high standards required for UAV operations in various industries. Summary of the Invention

[0009] To address the technical problems existing in the background art, this invention proposes a control box for a ground display terminal for UAV relay of fiber optic transmission signals.

[0010] This invention proposes a control box for a ground display terminal of a UAV relay for fiber optic signal transmission. It includes an ergonomically designed handheld box, a power module, a signal processing module, and a display module housed within the box. The power module supplies power to the signal processing and display modules. The signal processing module is electrically connected to the display module to transmit video signals. The box also includes a fiber optic switching signal module, a fiber optic video signal module, a fiber optic control signal module, and a heat insulation component. The signal processing module is a fiber optic relay terminal processing center module, which is connected to fiber optic control telemetry, an external screen, an external power supply, and a final control telemetry terminal. The power module includes a 12VBEC module, which receives a 3-8S power input and is electrically connected to the fiber optic relay terminal processing center module and the fiber optic switching signal module to provide adaptive power. The fiber optic switching signal module is bidirectionally connected to the fiber optic video signal module and the fiber optic control signal module, and establishes bidirectional communication with the fiber optic UAV via fiber optic cable. The fiber optic relay terminal processing center module is also connected to a ground wireless relay module via a line to achieve signal relay extension.

[0011] Furthermore, the fiber optic relay terminal processing center module integrates signal switching, data distribution, and status feedback functions. It can receive control commands issued by fiber optic control telemetry and transmit them to the fiber optic switching signal module. At the same time, it can receive equipment operation status data fed back by relay control telemetry. It can also distribute the power of the external 12V power supply to the 12VBEC module and the external screen, and simultaneously realize long-distance signal transmission and data interaction with the ground wireless relay module.

[0012] Furthermore, the 12VBEC module has a voltage conversion function, which can stably convert the 3~8S input power supply into the working voltage of the fiber optic repeater terminal processing center module and the fiber optic switching signal module. It also integrates an overvoltage protection unit and an overcurrent protection unit. When the input voltage exceeds the preset range or the circuit current is abnormal, it will automatically cut off the power supply to avoid damage to the back-end module.

[0013] Furthermore, the fiber optic switching signal module, as the core of the signal relay, can receive real-time video data of the UAV transmitted by the fiber optic video signal module and UAV status data transmitted by the fiber optic control signal module. After integration and processing, it is transmitted to the fiber optic relay terminal processing center module. At the same time, the control commands issued by the fiber optic relay terminal processing center module are diverted to the fiber optic control signal module and then transmitted to the fiber optic UAV through the fiber optic cable.

[0014] Furthermore, the heat insulation component includes a panel, a heat-conducting plate, a side plate, and a bottom plate. The panel, heat-conducting plate, side plate, and bottom plate together enclose a heat insulation space. The signal processing module, fiber optic switching signal module, fiber optic video signal module, and fiber optic control signal module are located inside the heat insulation space. The power module is located outside the heat insulation component to separate the electronic components from the power module. The cover of the enclosure is equipped with a protective plate to protect the display module.

[0015] Furthermore, the edges of the panel and the bottom plate are provided with locking holes, and the top and bottom of the side plate are integrally connected with locking protrusions, which engage inside the locking holes. The top of the side plate is provided with a grid-like heat dissipation window.

[0016] Furthermore, the panel, side panels, bottom plate, and protective plate are all made of carbon fiber to reduce the weight of the control box, and the heat-conducting plate is made of a metal plate with a high thermal conductivity to improve heat conduction efficiency.

[0017] Furthermore, the display module is electrically connected to the fiber optic repeater terminal processing center module via an HDMI interface, enabling it to receive and display drone footage transmitted by the fiber optic video signal module in real time. The display panel also integrates brightness adjustment buttons, supporting 8 levels of brightness adjustment to meet the viewing needs in outdoor bright light environments.

[0018] Furthermore, the wireless relay module includes a signal receiving unit, a signal amplification unit, and a signal transmitting unit. The signal receiving unit receives the signal transmitted by the fiber optic relay terminal processing center module through a shielded line. After the signal strength is enhanced by the signal amplification unit, the signal is transmitted to the ground equipment by the signal transmitting unit, thereby expanding the signal coverage area.

[0019] Furthermore, the outer side of the enclosure is provided with an interface compartment, which integrates an external screen interface, an external 12V power supply interface, an optical fiber interface, a telemetry signal interface, and a data transmission interface. Each interface is equipped with a rubber dust cover, which is fixed to the enclosure by a soft connecting strap. The bottom of the enclosure is provided with anti-slip pads, and a carrying handle is provided on the side.

[0020] The beneficial effects of this invention are: 1. Integrated design enhances portability and environmental adaptability: The ergonomic handheld case structure highly integrates core components such as the power module, signal processing module, display module, and fiber optic signal processing modules. Combined with anti-slip feet on the bottom and a side handle, it greatly improves the convenience of carrying and transporting the equipment. The interface compartment is equipped with a rubber dust cover, and the internal core electronic components are protected by heat insulation components. The overall structure has good dustproof, drop-proof, and anti-interference capabilities, making it suitable for complex and harsh working environments such as the field, sandstorms, and rain, effectively reducing the risk of equipment failure. 2. Stable signal transmission and wide coverage: Two-way communication with the UAV is achieved through the fiber optic switching signal module. The fiber optic transmission method ensures stable transmission of video and control signals over a distance of 25 kilometers, reducing signal attenuation. At the same time, the fiber optic switching signal module integrates and processes video and status data. Combined with the signal amplification and transmission functions of the ground wireless relay module, the signal coverage is further extended to meet the needs of long-distance operations within 40 kilometers. Furthermore, the internal modules are connected by shielded lines to reduce electromagnetic interference, avoid problems such as video stuttering and screen flickering, and improve the accuracy of control command transmission. 3. Safe and reliable power supply with flexible endurance: The 12VBEC module in the power supply module supports a wide power input range of 3~8 seconds and has a stable voltage conversion function, providing adapted power to each core module; it also integrates overvoltage and overcurrent protection units, automatically cutting off power supply in case of voltage fluctuations or circuit abnormalities, effectively protecting downstream electronic components from damage and improving equipment operation safety. Furthermore, the modular power supply design, combined with an external power interface, allows for flexible switching of power supply modes to meet the needs of long-term uninterrupted operation. 4. Highly efficient heat dissipation and lightweight structure: Thermal insulation components physically separate the power module from core electronic components, preventing heat from being conducted to critical components such as the signal processing module. The heat-conducting plate is made of a high thermal conductivity metal, combined with side panel grille-style ventilation windows, forming an efficient heat dissipation channel to ensure the temperature stability of the core module under high load operation and prevent performance throttling due to overheating. Meanwhile, the front panel, side panels, base plate, and protective plate are all made of carbon fiber, significantly reducing the device's weight while maintaining structural strength and protective performance, further improving portability. 5. Convenient function expansion and low maintenance cost: The external interface compartment of the enclosure integrates multiple types of interfaces, supporting external terminals such as external screens, telemetry equipment, and data storage devices, adapting to the functional requirements of different scenarios such as surveying and exploration, emergency rescue, and power inspection; each module adopts a modular assembly design, which enables quick assembly and disassembly through the interlocking structure of the locking protrusions and locking holes. When a single module is damaged, it can be directly replaced without overall overhaul, reducing maintenance costs. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the disassembled structure of the present invention; Figure 2 This is a schematic diagram of the assembly structure of the present invention; Figure 3 This is a half-sectional view of the assembled invention; Figure 4 This is a logic diagram of the fiber optic relay ground terminal of the present invention.

[0022] In the diagram: 1. Cabinet; 2. Power supply module; 3. Signal processing module; 4. Display module; 5. Fiber optic video signal module; 6. Fiber optic control signal module; 7. Front panel; 71. Slot; 8. Heat-conducting plate; 9. Side panel; 91. Slot protrusion; 92. Heat dissipation window; 10. Base plate; 11. Protective plate; 12. Fiber optic switching signal module. Detailed Implementation

[0023] Reference Figure 1-4 This invention proposes a control box for a ground display terminal of a UAV relay for fiber optic signal transmission, comprising an ergonomically designed handheld box 1, which serves as the mounting carrier and protective shell for the entire device, providing stable installation space and reliable protection for the internal functional modules. The bottom of the box 1 is equipped with anti-slip pads to enhance stability during use, and a carrying handle is provided on the side for easy carrying and transport during outdoor operations. The overall design balances portability and practicality. The enclosure 1 integrates core functional modules, mainly including power module 2, signal processing module 3, display module 4, fiber optic switching signal module 12, fiber optic video signal module 5, fiber optic control signal module 6, and heat insulation components. Each module works together to realize core functions such as fiber optic signal transmission, video display, and equipment control. Among them, signal processing module 3 is the fiber optic repeater terminal processing center module, which is the core control unit of the entire control box and is responsible for key tasks such as signal switching, data distribution, and status feedback. Power module 2 serves as the core of the power supply and includes a 12VBEC module. This module receives a 3-8S power input and has a stable voltage conversion function. It can convert the input power into the working voltage of the fiber optic repeater terminal processing center module and the fiber optic switching signal module 12 to ensure the stable operation of each module. At the same time, the 12VBEC module integrates overvoltage protection and overcurrent protection units. When the input voltage exceeds the preset range or the circuit current is abnormal, it will automatically cut off the power supply, effectively preventing the downstream functional modules from being damaged due to voltage or current abnormalities, and improving the safety and reliability of equipment operation. Power module 2 establishes electrical connections with signal processing module 3, display module 4 and other functional modules to provide continuous and stable power support for the operation of the entire control box. The fiber optic switching signal module 12, as the core of the signal relay, adopts a bidirectional connection design, establishing bidirectional communication with the fiber optic video signal module 5 and the fiber optic control signal module 6 respectively. The fiber optic video signal module 5 is responsible for collecting real-time video data transmitted by the UAV, while the fiber optic control signal module 6 receives the UAV's status data. Both types of data are transmitted to the fiber optic switching signal module 12 for integration and processing before being sent to the fiber optic relay terminal processing center module. At the same time, the control commands issued by the fiber optic relay terminal processing center module are split by the fiber optic switching signal module 12 to the fiber optic control signal module 6, and then bidirectional communication is established with the fiber optic UAV through fiber optics to achieve accurate transmission of control commands and ensure stable operation of the UAV. In addition, the fiber optic relay terminal processing center module is also connected to the ground wireless relay module through a line to realize signal relay extension and improve signal coverage. The ground wireless relay module consists of a signal receiving unit, a signal amplification unit, and a signal transmitting unit. The signal receiving unit receives the signal transmitted by the fiber optic relay terminal processing center module through a shielded line. After the signal strength is enhanced by the signal amplification unit, the signal is transmitted to the ground equipment by the signal transmitting unit, effectively expanding the signal coverage and meeting the signal transmission requirements of long-distance operation scenarios. At the same time, the fiber optic relay terminal processing center module also establishes connections with fiber optic control telemetry, external screen, external power supply, and relay control telemetry respectively. It can receive control commands issued by fiber optic control telemetry and transmit them to the fiber optic switching signal module 12. It can also receive equipment operation status data fed back by relay control telemetry. Furthermore, it can distribute the power of the external 12V power supply to the 12VBEC module and the external screen, and simultaneously realize long-distance signal transmission and data interaction with the ground wireless relay module. The heat insulation assembly includes a panel 7, a heat-conducting plate 8, a side plate 9, and a base plate 10. These components together form an independent heat insulation space. The signal processing module 3, fiber optic switching signal module 12, fiber optic video signal module 5, and fiber optic control signal module 6 are all installed inside this space, while the power module 2 is located outside the heat insulation assembly. Physical separation isolates the electronic components from the power module 2, reducing the impact of heat generated by the power module during operation on the core electronic components. The edges of the panel 7 and the base plate 10 are provided with locking holes 71. The top and bottom ends of the side plate 9 are integrally connected with locking protrusions 91. During assembly, the locking protrusions 91 engage inside the locking holes 71, allowing the panel 7, side plate 9, and base plate 10 to be connected. The system features a robust connection, convenient assembly, and reliable structure. The top of the side panel 9 has a grid-style heat dissipation window 92, which, together with the heat-conducting plate 8, dissipates heat from the insulation space. The heat-conducting plate 8 is made of a metal plate with a high thermal conductivity, which can quickly conduct the heat generated by the electronic components during operation and then discharge it through the heat dissipation window 92, ensuring that the core module operates stably in a suitable temperature environment. In addition, the front panel 7, side panel 9, and bottom plate 10 are all made of carbon fiber, which effectively reduces the weight of the control box while ensuring structural strength, further improving portability. The lid of the box 1 is equipped with a protective plate 11, which is also made of carbon fiber, and can effectively protect the display module 4 from collision damage during transportation or use. Display module 4 is electrically connected to the fiber optic repeater terminal processing center module via HDMI interface. It can receive and display the drone images transmitted by fiber optic video signal module 5 in real time, meeting the needs of visual monitoring of the drone's real-time operating status during operation. The display panel integrates brightness adjustment buttons and supports 8 levels of brightness adjustment. The screen brightness can be flexibly adjusted according to the outdoor light intensity to meet the needs of viewing images in strong outdoor light environments, ensuring that operators can clearly observe the video images transmitted by the drone. The outer side of the enclosure 1 is equipped with an independent interface compartment, which integrates multiple interfaces such as an external screen interface, an external 12V power interface, an optical fiber interface, a telemetry signal interface, and a data transmission interface. This can meet the connection needs of different external devices and adapt to diverse operating scenarios. Each interface is equipped with a rubber dust cover, which is fixed to the enclosure 1 by a soft connecting strap. This effectively prevents dust and rainwater from entering the equipment through the interface, improving the equipment's durability in harsh environments, and also prevents the dust cover from being lost, making it more convenient to use. When this control box is in operation, it supplies power to power module 2 via a 3-8S power input. After voltage conversion by the 12VBEC module, the power is supplied to each core functional module. The fiber optic switching signal module 12 establishes communication with the fiber optic UAV via fiber optic cable, receiving video and status data from the UAV and transmitting it to the fiber optic relay terminal processing center module. The processed video signal is then sent to display module 4 for real-time display. Operators issue control commands via fiber optic telemetry, which are transmitted to the UAV via the fiber optic relay terminal processing center module, fiber optic switching signal module 12, and fiber optic control signal module 6, enabling precise control of the UAV. Simultaneously, external devices such as external screens and ground wireless relay modules can be connected via the interface compartment to expand the equipment's functionality and meet the needs of different operational scenarios.

[0024] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A control box for a ground display terminal for fiber optic signal transmission unmanned aerial vehicle (UAV) relays, characterized in that: The device includes an ergonomically designed handheld housing (1), a power module (2), a signal processing module (3), and a display module (4) housed inside the housing (1). The power module (2) supplies power to the signal processing module (3) and the display module (4). The signal processing module (3) is electrically connected to the display module (4) to transmit video signals. The device also includes a fiber optic switching signal module (12), a fiber optic video signal module (5), a fiber optic control signal module (6), and a heat insulation component. The signal processing module (3) is a fiber optic relay terminal processing center module, which is connected to the fiber optic control signal module (6). The system establishes connections for telemetry, external screen, external power supply, and ultimate control telemetry. The power supply module (2) includes a 12VBEC module. The 12VBEC module is connected to a 3-8S power input and is electrically connected to the fiber optic relay terminal processing center module and the fiber optic switching signal module (12) to provide adaptive power. The fiber optic switching signal module (12) is bidirectionally connected to the fiber optic video signal module (5) and the fiber optic control signal module (6), and establishes bidirectional communication with the fiber optic UAV through fiber optics. The fiber optic relay terminal processing center module is also connected to the ground wireless relay module through a line to realize signal relay extension.

2. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The fiber optic relay terminal processing center module integrates signal switching, data distribution and status feedback functions. It can receive control commands issued by fiber optic control telemetry and transmit them to the fiber optic switching signal module (12). At the same time, it can receive equipment operation status data fed back by relay control telemetry. It can also distribute the power of the external 12V power supply to the 12VBEC module and the external screen, and simultaneously realize long-distance signal transmission and data interaction with the ground wireless relay module.

3. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The 12VBEC module has a voltage conversion function, which can stably convert the 3~8S input power supply into the working voltage of the fiber optic repeater terminal processing center module and the fiber optic switching signal module (12). It also integrates an overvoltage protection unit and an overcurrent protection unit. When the input voltage exceeds the preset range or the circuit current is abnormal, it will automatically cut off the power supply to avoid damage to the back-end module.

4. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The fiber optic switching signal module (12) serves as the core of the signal relay. It can receive the real-time video data of the UAV transmitted by the fiber optic video signal module (5) and the UAV status data transmitted by the fiber optic control signal module (6). After integration and processing, it is transmitted to the fiber optic relay terminal processing center module. At the same time, the control commands issued by the fiber optic relay terminal processing center module are diverted to the fiber optic control signal module (6) and then transmitted to the fiber optic UAV through the fiber optic cable.

5. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The heat insulation component includes a panel (7), a heat-conducting plate (8), a side plate (9), and a bottom plate (10). The panel (7), heat-conducting plate (8), side plate (9), and bottom plate (10) together form a heat insulation space. The signal processing module (3), fiber optic switching signal module (12), fiber optic video signal module (5), and fiber optic control signal module (6) are located inside the heat insulation space. The power module (2) is located outside the heat insulation component to separate the electronic components from the power module (2). The cover of the housing (1) is equipped with a protective plate (11) to protect the display module (4).

6. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 5, characterized in that, The edges of the panel (7) and the bottom plate (10) are provided with card holes (71), and the top and bottom of the side plate (9) are integrally connected with card slot protrusions (91). The card slot protrusions (91) are engaged inside the card holes (71), and the top of the side plate (9) is provided with a grid-type heat dissipation window (92).

7. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 5, characterized in that, The panel (7), side panel (9), bottom plate (10), and protective plate (11) are all made of carbon fiber to reduce the weight of the control box. The heat-conducting plate (8) is made of metal plate with high thermal conductivity to improve heat conduction efficiency.

8. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The display module (4) is electrically connected to the fiber optic relay terminal processing center module via an HDMI interface. It can receive and display the drone images transmitted by the fiber optic video signal module (5) in real time. The display panel integrates brightness adjustment buttons and supports 8 levels of brightness adjustment to meet the viewing needs of outdoor strong light environments.

9. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The wireless relay module includes a signal receiving unit, a signal amplification unit, and a signal transmitting unit. The signal receiving unit receives the signal transmitted by the fiber optic relay terminal processing center module through a shielded line. After the signal strength is enhanced by the signal amplification unit, the signal is transmitted to the ground equipment by the signal transmitting unit, thereby expanding the signal coverage.

10. The fiber optic signal transmission UAV relay ground display terminal control box according to claim 1, characterized in that, The outer side of the enclosure (1) is provided with an interface compartment, which integrates an external screen interface, an external 12V power supply interface, an optical fiber interface, a telemetry signal interface and a data transmission interface. Each interface is equipped with a rubber dust cover, which is fixed to the enclosure by a soft connecting strap. The bottom of the enclosure (1) is provided with anti-slip pads, and the side is provided with a carrying handle.

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