A drone wireless charging platform attached to a comprehensive pole

Abstract

The utility model provides a kind of unmanned aerial vehicle wireless charging platform attached to comprehensive pole, and the pole top of comprehensive pole body is fixedly installed in lamp pole by hoop, including landing platform, platform fixed arm, unmanned aerial vehicle fixed arm and hoop support, the landing platform is fixedly connected with hoop by hoop support, the side of the landing platform is fixedly connected with the side of hoop support by platform fixed arm, the bottom of the landing platform is provided with the unmanned aerial vehicle fixed arm that can overturn, the inside of the landing platform is provided with electrical device, the electrical device includes MCU control module, and the power module, wireless charging emission module and communication module connected with MCU control module. The unmanned aerial vehicle wireless charging platform attached to comprehensive pole improves the convenience and efficiency of unmanned aerial vehicle charging, reduces construction and maintenance cost at the same time, improves the coverage and applicability of charging facility under urban scene, provides strong support for the extensive application of unmanned aerial vehicle in city.

Description

Technical Field

[0001] This utility model relates to a drone charging platform, and more particularly to a drone wireless charging platform attached to a composite pole, which is suitable for supporting drone battery life in multiple scenarios. Background Technology

[0002] Existing charging methods for small and medium-sized drones include contact charging, contactless charging, and battery swapping, each with its own limitations. Different methods have their own advantages, disadvantages, and applicable scenarios. Contact charging, while lower in cost, requires manual operation, has low automation, and is less suitable for complex environments. Contactless charging, while eliminating the limitations of manual operation, requires extremely high precision, and its charging efficiency and stability still need improvement. Battery swapping, on the other hand, is highly dependent on designated battery swapping stations, lacking flexibility. In urban scenarios, current drone charging methods mostly involve building charging cabinets at designated locations. The construction of existing charging cabinets is not only costly but also has low coverage, making it difficult to meet the widespread charging needs of drones in cities. This is particularly true in scenarios such as emergency inspections and logistics delivery, where drone range issues are especially prominent. Utility Model Content

[0003] This utility model provides a wireless charging platform for drones attached to a composite pole, which solves the problems of high landing accuracy requirements, low automation, and poor environmental adaptability of existing drone charging technologies in urban scenarios. The technical solution is as follows:

[0004] A drone wireless charging platform attached to a composite pole is fixedly installed on the top of the composite pole body of the light pole via a clamp. It includes a landing platform, a platform fixing arm, a drone fixing arm, and a clamp bracket. The landing platform is fixedly connected to the clamp via the clamp bracket. The side of the landing platform is fixedly connected to the side of the clamp bracket via the platform fixing arm. A rotatable drone fixing arm is provided at the bottom of the landing platform. An electrical device is installed inside the landing platform, including an MCU control module, a power module, a wireless charging transmitter module, and a communication module connected to the MCU control module.

[0005] The clamp is made of high-strength aluminum alloy and has internal shock-absorbing pads to reduce the impact of light pole vibration on the charging platform.

[0006] The clamp bracket is equipped with legs, which extend upwards to the lower surface of the landing platform. The lower surface of the landing platform has pre-drilled nut holes for positioning and connecting with the legs of the clamp bracket.

[0007] The landing platform is equipped with an outer shell, which is supported on the sides by a fixed support arm of the drone. It is made of carbon fiber composite material and coated with an antistatic coating.

[0008] The landing platform is equipped with a heat dissipation channel, which is equipped with a cooling fan. Heat dissipation holes connected to the heat dissipation channel are opened at the bottom of the landing platform's outer shell.

[0009] The power supply module rectifies, filters, inverts, and regulates the mains power, then outputs a stable first supply voltage and a second supply voltage. The first supply voltage is 5V, which supplies power to the MCU control module and the communication module; the second supply voltage is 30V, which is connected to the transmitting coil via the inverter module.

[0010] The inverter module uses a high-frequency inverter to convert DC power into high-frequency AC power, drive the transmitting coil to generate an alternating magnetic field, and receive PWM modulation from the MCU control module.

[0011] The MCU control module sends PWM signals to the inverter module through the compensation module. The compensation module includes a transmitter and a receiver. The transmitter uses a… The receiving end uses an LCC-type compensation network.

[0012] The MCU control module uses a 32-bit ARM Cortex-M4 MCU, and the communication module uses a LoRa wireless communication module that can communicate with the drone.

[0013] The integrated pole is also equipped with a monitoring cantilever and a lighting cantilever, with the lighting cantilever being higher than the monitoring cantilever and lower than the wireless charging platform.

[0014] The wireless charging platform for drones attached to the integrated pole improves the convenience and efficiency of drone charging while reducing construction and maintenance costs. It also enhances the coverage and applicability of charging facilities in urban settings, providing strong support for the widespread application of drones in cities. The platform features efficient power conversion, precise docking, intelligent communication control, lightweight structure, and environmental friendliness, making it suitable for smart cities, emergency inspections, and logistics delivery scenarios, filling the gap in urban-level drone infrastructure.

[0015] This utility model integrates a highly efficient power management system that can automatically adjust the charging power according to the drone's battery status and charging needs, ensuring a safe and efficient charging process. The platform has a built-in intelligent communication module that supports multiple communication protocols, such as Wi-Fi, Bluetooth, and 4G / 5G, enabling real-time communication with the drone and achieving remote monitoring and control. The charging platform's structural components are manufactured using high-strength, lightweight materials, significantly reducing its weight while ensuring platform strength and stability, facilitating installation and maintenance. The charging platform possesses excellent waterproof, dustproof, and lightning protection performance, with a protection level of IP65 or higher, enabling normal operation under various harsh weather conditions and adapting to the diverse needs of urban environments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the installation structure of the drone wireless charging platform attached to the integrated pole;

[0017] Figure 2 This is a bottom view of the drone wireless charging platform attached to the integrated pole.

[0018] Figure 3 This is a three-dimensional schematic diagram of the drone wireless charging platform attached to the integrated pole;

[0019] Figure 4 This is a circuit diagram of the electrical device of the drone wireless charging platform attached to the integrated pole;

[0020] Figure 5 This is a circuit diagram of the power supply module;

[0021] Figure 6 This is a circuit diagram of the compensation module;

[0022] Figure 7 This is a schematic diagram of the MCU control module and the communication module;

[0023] Figure 8 This is a schematic diagram showing that the fixed arm of the UAV is driven by a gear arm motor.

[0024] Figure 9 This is a schematic diagram of the flipping process. Detailed Implementation

[0025] like Figures 1 to 3As shown, the drone wireless charging platform attached to the integrated pole is fixedly installed on the top 4 of the integrated pole body 1 of the light pole via clamps 9. It includes a landing platform 10, a platform fixing arm 8, a drone fixing arm 6, and a clamp bracket 11. The landing platform 10 is fixedly connected to the clamp 9 via the clamp bracket 11. The side of the landing platform 10 is fixedly connected to the side of the clamp bracket 11 via the platform fixing arm 8. The bottom of the landing platform 10 is provided with a flip-up drone fixing arm 6, which is used to flip up and fix the drone after it lands on the upper surface of the landing platform 10 to prevent the drone from falling. The clamp bracket 11 is fixedly connected to the clamp 9. The landing platform 10 is equipped with an electrical device, which includes an MCU control module, as well as a power module, a wireless charging transmitter module, and a communication module connected to the MCU control module.

[0026] The clamp 9 is made of high-strength aluminum alloy, possessing excellent corrosion resistance and mechanical strength, enabling it to adapt to various environmental conditions and ensuring the stability of the charging platform during long-term use. The clamp 9 has internal shock-absorbing pads to effectively reduce the impact of lamp post vibration on the charging platform. The clamp bracket 11, fixedly connected to the clamp 9, is equipped with legs extending upwards to the lower surface of the landing platform 10. The lower surface of the landing platform 10 has pre-drilled nut holes for positioning and connection with the legs of the clamp bracket 11, facilitating rapid installation of the drone charging platform and improving installation efficiency. The side of the landing platform 10 is fixedly connected to the platform fixing arm 8 by bolts, and the platform fixing arm 8 is fixedly connected to the side of the clamp bracket 11 by bolts.

[0027] Furthermore, the landing platform 10 is equipped with an outer shell, concealing various electrical components and connecting cables within the platform to prevent cable exposure. Simultaneously, heat dissipation vents and indicator lights are integrated into the overall design. The outer shell and main body of the landing platform 10 are made of carbon fiber composite material, which is lightweight and high-strength, ensuring structural stability without placing excessive burden on the light pole. The upper surface of the landing platform 10 is flat with rounded edges to prevent scratches and damage to the drone. Considering the complexity of the outdoor environment, the charging platform possesses excellent protective performance. The outer shell is waterproof, dustproof, sunproof, and lightning-proof, achieving an IP65 protection rating, effectively preventing rainwater and dust from entering the platform and affecting the normal operation of electrical components. Additionally, an anti-static coating is applied to the outer surface of the landing platform 10 to prevent static electricity from interfering with the drone and charging system.

[0028] Furthermore, the landing platform 10 is internally equipped with a heat dissipation channel and a cooling fan. The cooling fan uses forced air cooling to dissipate internal heat from the landing platform 10 into the surrounding environment, ensuring that electrical components operate within their normal temperature range and extending their service life. Simultaneously, four heat dissipation holes 7, connected to the heat dissipation channel, are provided on the lower part (lower surface) of the landing platform 10's outer shell to further improve heat dissipation. These holes prevent foreign objects from entering the interior of the landing platform 10.

[0029] The landing platform 10 has four conveyor belt or gear-driven drone fixing arms 6 on its lower surface, which are used to fix the drone after flipping. The drone fixing arms 6 are driven by arm motors.

[0030] In addition, the integrated pole 1 is also equipped with a monitoring cantilever 2 and a lighting cantilever 3. The lighting cantilever 3 is higher than the monitoring cantilever 2 and lower than the wireless charging platform.

[0031] The electrical device includes an MCU control module, and a power module, a wireless charging transmitter module, and a communication module connected to the MCU control module. The power module provides a stable voltage to power the MCU control module, the wireless charging transmitter module, and the communication module; the wireless charging transmitter module powers the drone.

[0032] like Figure 4 As shown, the power supply module uses a high-efficiency switching power supply with an input voltage range of 220V-380V, adaptable to different mains voltages. After rectification, filtering, and inverter regulation, the mains voltage outputs a stable first supply voltage and a second supply voltage. The first supply voltage is 5V, supplying power to the MCU control module and communication module. The second supply voltage is 30V, connected to the transmitting coil via the inverter module. The inverter module uses a high-frequency inverter to convert DC power into high-frequency AC power, driving the transmitting coil to generate an alternating magnetic field. The operating frequency of the transmitting coil is set at 13.56 MHz. At this frequency, the coupling efficiency between the transmitting and receiving coils is high, and electromagnetic interference to other electronic devices is avoided. The transmitting coil is wound with multi-strand Litz wire to reduce eddy current losses and improve transmission efficiency. It adopts a concentric dual-coil structure; the inner coil is responsible for transmitting the high-frequency alternating magnetic field, and the outer coil is used for communication. The mutual inductance is constant, ensuring a constant output voltage at the receiving end.

[0033] like Figure 5 As shown, the mains voltage is rectified by the GBU1510 chip and then filtered by the VBT85BB-01A. A JFC2410-1200TS surface mount fuse is also installed between the mains voltage and the GBU1510 chip.

[0034] like Figure 6 As shown, further, the MCU control module outputs PWM1 and PWM2 signals. PWM1 and PWM2, after being isolated and driven by U3 and U4 respectively, control the full-bridge inverter circuit composed of Q1-Q4 to generate high-frequency AC power. This high-frequency AC power, after passing through a π-type compensation network, is emitted outwards by the wireless charging coil U2 in the form of a magnetic field. Simultaneously, the current of the full-bridge inverter circuit is sampled through resistor R13, isolated by U8, and fed back to the MCU control module to achieve closed-loop power control. By appropriately selecting the parameters of the compensation capacitor and inductor of the π-type compensation network, the system can achieve good resonance matching under different load conditions, improving power transmission efficiency and ensuring a stable power output at the receiving end.

[0035] In this circuit, U3, U4, and U8 employ optocouplers (LTV-357T-C). U3 and U4 provide electrical isolation between the PWM1 and PWM2 signals output from the MCU and the inverter bridge, while simultaneously amplifying the drive signals to control the switching on and off of the MOSFETs (Q1-Q4). U8, in conjunction with sampling resistor R13, provides isolated feedback of the transmitter current (CFB signal). The π-type compensation network utilizes one inductor and two capacitors (L2, C14, and C15), improving power transmission efficiency through resonant matching of the inductor and capacitors. Q1-Q4 form a full-bridge inverter circuit used to convert DC power into high-frequency AC power.

[0036] like Figure 7 As shown, the MCU control module is connected to the communication module and is developed based on a microcontroller (MCU). The communication module uses a low-latency, high-reliability LoRa wireless communication module to achieve real-time data interaction between the charging platform and the drone. The MCU control module can monitor the drone's battery voltage, current, and power level in real time and automatically adjust the transmission power based on this information to meet the drone's charging needs. It also has fault diagnosis capabilities; once abnormal conditions such as overvoltage, overcurrent, or short circuit are detected, it can immediately cut off the power supply to ensure the safety of the charging process. Furthermore, the platform is internally connected to a network for integrated management platform monitoring, management, and billing.

[0037] The MCU control module uses a 32-bit ARM Cortex-M4 MCU (with built-in CAN controller, 12-bit ADC, PWM unit, and hardware CRC), which is used for power management, power sampling, PWM signal transmission, fan control, communication / indication, storage, and debugging.

[0038] The power management refers to the 12V... A 5V / 3.3V DC-DC converter drives the cooling fan and provides communication / indication capabilities. Power sampling is achieved through a 0.1% precision shunt resistor and isolated operational amplifier, real-time acquisition of the drone's battery bus voltage and current. The PWM signal transmission is driven by a gate driver, a dual-channel isolated gate driver, and a half-bridge IGBT / MOSFET module, driving a high-frequency inverter. The driver board can integrate VCE desaturation protection. Fan control is used to manage the cooling fan; for a 12V small centrifugal fan with PWM and speed feedback, the MCU uses closed-loop speed regulation based on NTC temperature.

[0039] Motor drive: 4-channel H-bridge DRV8873, driving the outrigger motor; each channel has current detection and current limiting, and uses an AS5600 magnetic encoder. Rereading angle.

[0040] The communication / indication system includes RGB status lights, a buzzer, and a 4G / 5G module (UART to MQTT), all connected via the same set of FPC flexible cables. It also includes storage and debugging on the control board, with onboard 2 MB SPI Flash (for logging and OTA upgrades), an SWD debug port, and an ATECC608 anti-tamper encryption chip.

[0041] like Figure 8 In the embodiment shown, the landing platform 10 has a first fixing block 13, a second fixing block 15 and a third fixing block 17 fixedly installed on its lower surface. The first fixing block 13 is used to fix the arm motor 12. The drive shaft of the arm motor 12 is fixedly connected to the rotating shaft 16 through the conveyor belt 14. The two ends of the rotating shaft 16 are fixedly installed on the second fixing block 15 and the third fixing block 17 through bearings, respectively. The rotating shaft 16 is fixedly connected to one end of the UAV fixed arm 6.

[0042] like Figure 9 As shown, the drone fixing arm 6 includes a first support rod and a second support rod connected at right angles. One end of the first support rod is fixedly mounted on the rotating shaft 16, and the other end is fixedly connected to the second support rod. When no drone lands on the upper surface of the landing platform 10, the first support rod is parallel to the lower surface of the landing platform 10, and the second support rod is vertical. When the drone lands on the upper surface of the landing platform 10, the arm motor 12 starts to work, and the drone fixing arm 6 begins to rotate until the first support rod rotates 270 degrees, so that the second support rod is above the drone, preventing the drone from falling and simultaneously securing the drone.

[0043] This invention utilizes a high-frequency inverter to convert direct current (DC) into high-frequency alternating current (AC), driving a transmitting coil to generate an alternating magnetic field. This achieves high-efficiency energy transfer. Simultaneously, the coil design is optimized to reduce eddy current losses, improving system compatibility and charging efficiency. The innovative coil structure design helps reduce electromagnetic interference to other electronic devices, ensuring stable system operation in complex electromagnetic environments. It also enhances environmental adaptability by using weather-resistant materials and coatings to improve corrosion resistance and temperature resistance, guaranteeing long-term stable operation. Furthermore, the integrated intelligent management system enables remote monitoring and fault diagnosis, reducing maintenance costs and improving the system's intelligence level. The design, attached to a utility pole, saves urban space. These innovations not only improve charging efficiency and system reliability but also enhance user experience, solving the endurance problem of drones in urban scenarios. It has significant practical value and broad application prospects, while its ease of installation facilitates widespread adoption.

Claims

1. A wireless charging platform for drones attached to a composite pole, characterized in that: The system is fixedly installed on the top of the integrated pole body of the light pole via clamps. It includes a landing platform, a platform fixing arm, a drone fixing arm, and a clamp bracket. The landing platform is fixedly connected to the clamp via the clamp bracket. The side of the landing platform is fixedly connected to the side of the clamp bracket via the platform fixing arm. The bottom of the landing platform is provided with a drone fixing arm that can be rotated. The landing platform is equipped with electrical devices, including an MCU control module, a power module, a wireless charging transmitter module, and a communication module connected to the MCU control module.

2. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The clamp is made of high-strength aluminum alloy and has internal shock-absorbing pads to reduce the impact of light pole vibration on the charging platform.

3. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The clamp bracket is equipped with legs that extend upwards to the lower surface of the landing platform. The lower surface of the landing platform has pre-drilled nut holes for positioning and connecting with the legs of the clamp bracket.

4. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The landing platform is equipped with an outer shell, which is supported on the sides by a fixed support arm of the drone. It is made of carbon fiber composite material and coated with an antistatic coating.

5. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The landing platform is equipped with a heat dissipation channel, which is equipped with a cooling fan. Heat dissipation holes connected to the heat dissipation channel are opened at the bottom of the landing platform's outer shell.

6. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The power supply module rectifies, filters, inverts, and regulates the mains power, then outputs a stable first supply voltage and a second supply voltage. The first supply voltage is 5V, which supplies power to the MCU control module and the communication module; the second supply voltage is 30V, which is connected to the transmitting coil via the inverter module.

7. The drone wireless charging platform attached to the integrated pole according to claim 6, characterized in that: The inverter module uses a high-frequency inverter to convert DC power into high-frequency AC power, drive the transmitting coil to generate an alternating magnetic field, and receive PWM modulation from the MCU control module.

8. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The MCU control module sends PWM signals to the inverter module through the compensation module. The compensation module includes a transmitter and a receiver. The transmitter uses a "π" type compensation network, and the receiver uses an LCC type compensation network.

9. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The MCU control module uses a 32-bit ARM Cortex-M4 MCU, and the communication module uses a LoRa wireless communication module that can communicate with the drone.

10. The drone wireless charging platform attached to the integrated pole according to claim 1, characterized in that: The integrated pole is also equipped with a monitoring cantilever and a lighting cantilever, with the lighting cantilever being higher than the monitoring cantilever and lower than the wireless charging platform.

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