FPV unmanned aerial vehicle signal relay system

Abstract

The utility model discloses an FPV unmanned aerial vehicle signal relay system, which comprises a heat dissipation box and is characterized in that the top end of the heat dissipation box is fixedly connected with an upper cover through bolts, one side of the heat dissipation box is fixedly connected with an installation base through bolts, a frequency switching assembly is movably clamped in the installation base, and the frequency switching assembly is fixedly connected with the heat dissipation box through bolts. An image transmission emitting assembly is fixedly connected to the corner position of one side in the heat dissipation box, a receiving assembly is fixedly connected to the corner position of the top of one side of the heat dissipation box, an image transmission receiving assembly is fixedly connected to the middle of one side wall of the heat dissipation box, and a power supply voltage stabilizing assembly is fixedly installed in the middle of the heat dissipation box; the relay system can relay a remote control (2.4 G) signal and an image transmission (5.8 G) signal at the same time, the relay system adopts a modular design scheme, each module can be rapidly replaced, real-time overhaul and fault removal are facilitated, the system maintenance time is shortened, the relay system is low in cost, the actual application value of the relay system is very low, and large-scale popularization and application are facilitated.

Description

Technical Field

[0001] This utility model relates to the technical field of FPV unmanned aerial vehicle (UAV) signal relay systems, specifically to FPV UAV signal relay systems. Background Technology

[0002] Against the backdrop of the vigorous development of new-type productivity in the new era, the field of unmanned aerial vehicles (UAVs) is in a stage of active exploration and rapid development, with increasingly widespread use of UAVs in fields including warfare, rescue, and firefighting. Among these, the role of military and police UAVs is becoming increasingly prominent.

[0003] The significant impact of external environmental factors on drone signals has become a major constraint on their development. In particular, military and police drones often face signal obstruction from mountains and buildings, as well as signal attenuation from the drones themselves, when performing long-range reconnaissance missions in mountainous areas or densely populated buildings. Traditional FPV drones' 5.8G image transmission and 2.4G remote control signals are greatly affected by external factors such as terrain obstruction and electromagnetic environment, seriously affecting the normal operation and mission execution of drones. Currently, most solutions on the market relay either the remote control signal or the image transmission signal separately, and there is no solution that can relay both the remote control (2.4G) signal and the image transmission (5.8G) signal simultaneously. Therefore, this invention proposes a system that can relay both remote control (2.4G) and image transmission (5.8G) signals simultaneously. Utility Model Content

[0004] The purpose of this invention is to provide an FPV drone signal relay system to solve the problem mentioned in the background art that the traditional FPV drone image transmission 5.8G signal and remote control 2.4G signal are greatly affected by external factors such as terrain obstruction and electromagnetic environment, which seriously affects the normal operation and mission execution of the drone. At present, most solutions on the market relay the remote control signal or the image transmission signal separately, and there is no solution that can relay the remote control (2.4G) signal and the image transmission (5.8G) signal at the same time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an FPV unmanned aerial vehicle (UAV) signal relay system, comprising a heat dissipation box, characterized in that: a top cover is fixedly connected to the top of the heat dissipation box by bolts; a mounting base is fixedly connected to one side of the heat dissipation box by bolts; a frequency switching component is movably engaged inside the mounting base; an image transmission transmitter is fixedly connected to one corner of the inside of the heat dissipation box; a receiver is fixedly connected to one top corner of one side of the heat dissipation box; an image transmission receiver is fixedly connected to the middle of one side wall of the heat dissipation box; and a power supply voltage regulator is fixedly installed in the middle of the heat dissipation box. It can simultaneously relay remote control (2.4G) and image transmission (5.8G) signals, while most existing systems on the market can only relay either remote control or image transmission signals, and cannot handle both at the same time. This relay system breaks this limitation. The relay system adopts an integrated design scheme, is lightweight, and can be portablely attached to various types of drones, making it ready for use at any time. Its application scenarios are very wide. The relay system adopts a modular design scheme, and each module can be quickly replaced, which facilitates real-time inspection and troubleshooting, reduces system maintenance time, and has a low cost, which is negligible compared to its actual application value, making it conducive to large-scale popularization and application.

[0006] The frequency switching component includes a dual-frequency head, which is movably snapped into the mounting base. One end of the dual-frequency head is connected to a dual-frequency antenna, which receives signals from different frequency bands, enabling the reception and processing of signals of different frequencies, and providing functions such as positioning and data transmission for the device.

[0007] The image transmission component includes a TS5823 image transmission transmitter, which is fixedly connected to one corner of the interior of the heat dissipation box. A whip antenna is connected to one side of the TS5823 image transmission transmitter, which extends to the outside of the heat dissipation box. The whip antenna transmits a 5.8G frequency band image transmission signal through the antenna to send out video images and other data collected by the camera.

[0008] The receiving component includes an ESP32 receiver, which is fixedly installed at the top corner of one side of the heat dissipation box. The ESP32 receiver and the dual-band LNB are located on the same side of the heat dissipation box. The ESP32 receiver has a PCB antenna connected to the side away from the dual-band LNB, which is used to receive wireless signals such as Wi-Fi and Bluetooth to complete wireless control.

[0009] The image transmission receiving component includes an RC832H image transmission receiver, which is fixedly connected to the top center of one side wall of the heat dissipation box. A flat panel antenna is connected to one side of the RC832H image transmission receiver. The RC832H image transmission receiver has CH and FR keys on its side. It receives image transmission signals in the 5.8G band and acquires video images and other data transmitted by devices such as aircraft. The CH key is used to switch the receiving channel or frequency of the image transmission receiver. By lightly touching the CH key, different channels can be switched sequentially in a preset order to match with image transmission transmitters on different channels, or to select the channel with better signal quality for image reception among multiple channels. When there are multiple image transmission devices in the vicinity that interfere with each other, the CH key can be used to switch channels to find the channel with less interference to ensure stable image transmission signal reception. When the image transmission signal is briefly interrupted or abnormal, pressing the FR key can trigger the receiver to quickly search for and lock the signal again, attempting to restore normal image reception as soon as possible or switch to different frequency ranges to adapt to image transmission transmitters on different frequency bands or meet specific signal reception requirements.

[0010] The power supply and voltage regulation assembly includes a power supply battery, which is fixedly installed in the middle of the bottom wall of the heat dissipation box. A 12V 3A voltage regulator is fixedly connected to the bottom of the inner wall of the heat dissipation box near the dual-frequency tuner. Multiple power supply lines are connected to one side of the 12V 3A voltage regulator. The 12V 3A voltage regulator is connected to the RC832H image transmission receiver through the camera video signal connection cable. The 12V 3A voltage regulator can convert the unstable voltage output by the battery into a stable DC voltage, providing a stable power supply for the various electronic devices of the drone. This avoids performance degradation, unstable operation, or even damage to the equipment due to voltage fluctuations. By limiting the range of the output voltage, the 12V 3A voltage regulator can prevent damage to the drone's electronic devices caused by overvoltage and undervoltage, extend the service life of the equipment, and improve the reliability and stability of the entire drone system.

[0011] Compared with existing technologies, the beneficial effects of this utility model are as follows: This relay system uses an RC832H image transmission receiver to receive the returned images from the UAV image transmission transmitter, forming link 1; then the images received by the RC832H image transmission receiver are output and transmitted through the TS5823 image transmission transmitter of the relay system, and the ground end receives the signal, forming link 2. Links 1 and 2 need to use different frequencies to avoid mutual interference between the two signals and improve anti-interference performance. A receiver using an ESP32 chip receives the remote control signal from the ground end, forming link 3; then the received signal is input into a dual-frequency LNB with relay function and forwarded to the onboard receiver of the FPV UAV, forming link 4, preventing mutual interference between the two links. The relay system adopts a modular design scheme, and each module can be quickly replaced, facilitating real-time inspection and troubleshooting, and reducing system maintenance time; by using the "receive and retransmit" method, the transmission distance of the UAV link signal is increased and the attenuation during signal transmission is reduced, thereby improving the remote control operation distance of the UAV, improving the quality of the returned images, and thus broadening the application scenarios of the UAV in long-distance situations. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0013] Figure 2 This is a schematic diagram of the internal structure of the heat dissipation box of this utility model;

[0014] Figure 3 This is a top view of the present invention;

[0015] Figure 4 This is a schematic diagram of the working process of this utility model.

[0016] In the diagram: 1. Heat dissipation box; 2. Top cover; 3. RC832H video transmission receiver; 4. 12V3A voltage regulator; 5. Dual-band LNB; 6. ESP32 receiver; 7. TS5823 video transmission transmitter; 8. Power supply battery; 9. CH button; 10. FR button; 11. Dual-band antenna; 12. Flat panel antenna; 13. Power supply line; 14. Camera video signal connection cable; 15. Whip antenna; 16. PCB antenna; 17. Mounting base. Detailed Implementation

[0017] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings of the embodiments of the present invention.

[0018] Please see Figure 1-4This utility model provides an FPV drone signal relay system, including a heat dissipation box 1. A top cover 2 is fixedly connected to the top of the heat dissipation box 1 by bolts. A mounting base 17 is fixedly connected to one side of the heat dissipation box 1 by bolts. A frequency switching component is movably engaged inside the mounting base 17. An image transmission transmitter is fixedly connected to one side corner of the inside of the heat dissipation box 1. A receiver is fixedly connected to one side top corner of the heat dissipation box 1. An image transmission receiver is fixedly connected to the middle of one side wall of the heat dissipation box 1. A power supply voltage regulator is fixedly installed in the middle of the heat dissipation box 1.

[0019] The frequency switching assembly includes a dual-band LNB 5, which is movably snapped into the mounting base 17. One end of the dual-band LNB 5 is connected to a dual-band antenna 11. The dual-band LNB 5 receives signals from different frequency bands, amplifies and down-converts the received high-frequency signals, converting them into intermediate frequency signals that are easier to process and transmit, so that subsequent receiver circuitry can perform further demodulation and decoding operations. Simultaneously, the dual-band characteristic allows the device to receive signals on two different frequency bands, increasing the flexibility and versatility of signal reception.

[0020] The image transmission component includes a TS5823 image transmitter 7, which is fixedly connected to one corner of the interior of the heat dissipation box 1. A whip antenna 15 is connected to one side of the TS5823 image transmitter 7, extending to the outside of the heat dissipation box 1. The whip antenna 15 is responsible for encoding and modulating the video images and audio signals captured by the camera, and transmitting them in the form of a 5.8G frequency band wireless signal through the whip antenna 15, so that the RC832H image receiver 3 can receive and reproduce the video and audio signals at a certain distance, realizing real-time wireless audio and video transmission.

[0021] The receiving component includes an ESP32 receiver 6, which is fixedly installed at the top corner of one side of the heat dissipation box 1. The ESP32 receiver 6 and the dual-band LNB 5 are located on the same side of the heat dissipation box 1. The ESP32 receiver 6 is connected to a PCB antenna 16 on the side away from the dual-band LNB 5. As a receiving end, it receives signals from other devices via Wi-Fi or Bluetooth protocols to realize wireless data transmission and communication between devices.

[0022] The image transmission receiving component includes an RC832H image transmission receiver 3, which is fixedly connected to the top center of one side wall of the heat dissipation box 1. A flat panel antenna 12 is connected to one side of the RC832H image transmission receiver 3. The side of the RC832H image transmission receiver 3 has CH keys 9 and FR keys 10 for receiving wireless audio and video signals in the 5.8GHz band. In FPV flight applications, it works in conjunction with the TS5823 image transmission transmitter 7 to receive video images and audio data captured by the aircraft's camera and transmit them to a ground display device, allowing users to view the aircraft's footage in real time and understand the flight environment and shooting situation. The RC832H image transmission receiver 3 has 48 frequency points, allowing selection from multiple channels to help avoid interference signals, find a clear transmission channel, and ensure the stability of the image transmission signal. It supports wireless audio and video transmission and can simultaneously receive video and audio signals, providing users with more comprehensive information.

[0023] The power supply and voltage regulation assembly includes a power supply battery 8, which is fixedly installed in the middle of the bottom wall of the heat dissipation box 1. A 12V 3A voltage regulator 4 is fixedly connected to the bottom of the inner wall of the heat dissipation box 1 near the dual-frequency tuner 5. Multiple power supply lines 13 are connected to one side of the 12V 3A voltage regulator 4. The 12V 3A voltage regulator 4 is connected to the RC832H image transmission receiver 3 through the camera video signal connection line 14. The battery serves as the power source to power the entire system. However, the battery output voltage may be unstable or not meet the equipment requirements. Therefore, the battery output voltage is first connected to a 12V 3A voltage regulator 4. The 12V 3A voltage regulator 4 regulates the voltage of the power supply battery 8, stabilizing it at a suitable output voltage value. The input voltage range of the RC832H video transmission receiver 3 is generally 8-26V. The stable voltage output from the 12V 3A voltage regulator is connected to the power input interface of the RC832H video transmission receiver 3 to provide stable power for its normal operation. The input voltage range of the TS5823 video transmission transmitter 7 is usually 7-24V. The voltage output from the 12V 3A voltage regulator 4 is connected to the T... The S5823 image transmitter 7 power interface provides power for the TS5823 image transmitter 7 to transmit image signals. The ESP32 receiver 6 commonly operates at 3.3V or 5V. If the output voltage of the 12V 3A regulator 4 does not meet its requirements, it may need to go through a secondary step-down circuit to convert the voltage to a suitable range before connecting it to the power pin of the ESP32 receiver 6. The dual-frequency tuner 5 typically has an input voltage range of 7-30V depending on its operating voltage requirements. If it is compatible with the output voltage of the 12V 3A regulator 4, it can be directly connected; otherwise, it also needs to be processed by stepping down to obtain a suitable input voltage.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A FPV drone signal relay system, comprising a heat dissipation box (1), characterized in that: The heat dissipation box (1) top is fixedly connected with upper cover (2) through bolt, one side of heat dissipation box (1) is fixedly connected with mounting base (17) through bolt, the inside movable clamping of mounting base (17) has frequency cutting assembly, the inside one side corner position of heat dissipation box (1) is fixedly connected with picture transmission launch assembly, the one side top corner position of heat dissipation box (1) is fixedly connected with receiving assembly, the middle part of one side wall of heat dissipation box (1) is fixedly connected with picture transmission receiving assembly, the middle part of heat dissipation box (1) is fixedly installed with power supply voltage stabilizing assembly.

2. The FPV drone signal relay system of claim 1, wherein: The frequency cutting assembly includes double-frequency high-frequency head (5), the double-frequency high-frequency head (5) is movably clamped in the inside of mounting base (17), and one end of the double-frequency high-frequency head (5) is signal connected with double-frequency antenna (11).

3. The FPV drone signal relay system of claim 1, wherein: The picture transmission launch assembly includes TS5823 picture transmission launcher (7), the TS5823 picture transmission launcher (7) is fixedly connected to the inside one side corner position of heat dissipation box (1), one side of the TS5823 picture transmission launcher (7) is signal connected with whip antenna (15), and the whip antenna (15) extends to the outside of heat dissipation box (1).

4. The FPV drone signal relay system of claim 1, wherein: The receiving assembly includes ESP32 receiver (6), the ESP32 receiver (6) is fixedly installed at the one side top corner position of heat dissipation box (1), the ESP32 receiver (6) and double-frequency high-frequency head (5) are on the same side of heat dissipation box (1), and one side of the ESP32 receiver (6) away from double-frequency high-frequency head (5) is signal connected with PCB antenna (16).

5. The FPV drone signal relay system of claim 1, wherein: The picture transmission receiving assembly includes RC832H picture transmission receiver (3), the RC832H picture transmission receiver (3) is fixedly connected to the middle part of one side wall top end of heat dissipation box (1), one side of the RC832H picture transmission receiver (3) is signal connected with flat plate antenna (12), and the side of RC832H picture transmission receiver (3) is provided with CH key (9) and FR key (10).

6. The FPV drone signal relay system of claim 1, wherein: The power supply voltage stabilizing assembly includes power supply battery (8), the power supply battery (8) is fixedly installed in the middle part of bottom wall of heat dissipation box (1), the bottom of the inner wall of one side of heat dissipation box (1) close to double-frequency high-frequency head (5) is fixedly connected with 12V3A voltage stabilizer (4), one side of the 12V3A voltage stabilizer (4) is connected with a plurality of power supply circuits (13), and the 12V3A voltage stabilizer (4) is connected with RC832H picture transmission receiver (3) through camera video signal connection line (14).

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