Power consumption replenishment system for power inspection unmanned aerial vehicle

Abstract

The utility model discloses a power consumption replenishment system for an electric power inspection unmanned aerial vehicle. The power consumption replenishment system comprises a charging base and an unmanned aerial vehicle matched with the charging base. A charging interface, a power management module, an environment detection module and a main control unit are arranged on the charging base; and a power receiving module matched with the charging interface is arranged at the bottom of the unmanned aerial vehicle. The beneficial effects of the utility model are that the technical scheme solves the problems of unstable positioning, low charging efficiency and insufficient safety of a conventional unmanned aerial vehicle charging system in a complex outdoor scene through precise magnetic attraction alignment, environment adaptive charging and multi-power-supply cooperative control; the device is especially suitable for long-time operation requirements in the fields of power inspection, disaster monitoring and the like.

Description

Technical Field

[0001] This utility model relates to the field of drone charging technology, and in particular to a power supply system for power inspection drones. Background Technology

[0002] In recent years, with the continuous advancement of technology, drones have achieved rapid development in the field of aircraft. Currently, drones are widely used in agricultural and forestry plant protection, power line inspection, logistics and transportation, and other fields, greatly facilitating people's production and daily life. Typically, drones need to be parked and recharged after flying for a period of time.

[0003] In related technologies, drones typically land on a flat surface after flying for a period of time, where they are manually retrieved and their batteries recharged or replaced. Traditional retrieval methods require large areas; moreover, drone batteries have short operating times, necessitating frequent manual replacements, increasing application costs and being time-consuming and labor-intensive. Therefore, it is necessary to develop a power supply replenishment system for power inspection drones. A search revealed no identical technical solutions to this invention. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a power supply system for power inspection drones, thereby solving one or more of the above-mentioned problems in the prior art.

[0005] To solve the above-mentioned technical problems, the present invention adopts a technical solution as follows: a power supply system for power inspection drones, the innovation of which is that it includes a charging base and a drone adapted to it;

[0006] The charging base is equipped with a charging interface, a power management module, an environmental detection module, and a main control unit;

[0007] The drone has a power receiving module at its bottom that matches the charging interface.

[0008] In some embodiments, the charging interface includes a charging groove disposed on the top of the charging base, and a magnetic positioning unit and conductive contacts disposed within the charging groove. The conductive contacts are connected to the power supply module via a flexible circuit. The power receiving module includes a magnetic adsorption sheet and a charging electrode, which is connected to the drone's battery via a wire. The power management module includes a fast charging unit, a temperature monitoring unit, and a multi-stage voltage regulation circuit. The main control unit dynamically adjusts the charging parameters based on temperature and humidity data fed back by the environmental detection module, and forms a magnetic alignment with the drone's power receiving module through the magnetic positioning unit.

[0009] In some embodiments, the top of the charging base is provided with an annular waterproof groove, a sealing ring is embedded in the annular waterproof groove, the magnetic charging interface is covered with a waterproof insulating layer, and the environmental detection module includes a temperature and humidity sensor and a dust detection unit.

[0010] In some embodiments, the magnetic positioning unit is a ring array of neodymium iron boron magnets, and the conductive contacts are made of gold-plated copper sheets and are arranged at intervals with the magnetic positioning unit to form a multi-pole magnetic alignment structure.

[0011] In some implementations, the magnetic adsorption sheet of the receiving module is a magnet array with the opposite polarity to the magnetic positioning unit, and the distribution positions of the charging electrodes correspond one-to-one with the conductive contacts.

[0012] In some embodiments, the charging base further includes a solar power supply module, which includes a solar panel, an energy storage battery, and an MPPT controller. The energy storage battery is connected in parallel with the power management module. The solar panel is mounted on the side edge of the charging base, and a flipping mechanism is provided between the solar panel and the charging base. The flipping mechanism includes a flipping shaft and a flipping motor that drives the flipping shaft to flip. Support rods are provided at both ends of the flipping shaft, and the solar panel is mounted on the support rods. The MPPT controller is integrated into the main control unit to achieve seamless switching between dual power supplies.

[0013] In some implementations, the power receiving module of the UAV is provided with a buffer protection frame on the outside. The buffer protection frame is made of elastic silicone material and has a pressure sensor embedded inside to detect the charging contact pressure and feed it back to the main control unit.

[0014] In some implementations, the bottom of the buffer protection frame is provided with a guide slope, which forms a sliding fit structure with the edge of the charging groove on the top of the charging base to assist the initial positioning of the drone during landing.

[0015] In some implementations, the fast charging unit supports the PD3.0 protocol and is equipped with an overvoltage protection circuit and a reverse current blocking module. The temperature monitoring unit monitors the temperature of the conductive contacts in real time using an infrared temperature probe.

[0016] In some implementations, the charging base has a built-in communication module that supports 4G / 5G and LoRa dual-mode communication for data interaction with drones and remote control centers, and for uploading charging status and environmental monitoring data in real time.

[0017] The beneficial effects of this utility model are: This technical solution solves the problems of unstable positioning, low charging efficiency and insufficient safety of traditional drone charging systems in complex outdoor scenarios through magnetic precise alignment, environmental adaptive charging and multi-power source coordinated control. It is especially suitable for long-term operation needs in fields such as power line inspection and disaster monitoring. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0019] Figure 1 This is an axial view (a) of a power supply system for a power inspection drone according to this utility model.

[0020] Figure 2 This is an axis view (b) of a power supply replenishment system for a power inspection drone according to this utility model.

[0021] Figure 3 This is a power supply system framework diagram of a power supply system for a power inspection drone.

[0022] Figure 4 This is a schematic diagram of the working principle of a power supply system for a power inspection drone.

[0023] Figure 5 This utility model discloses the working process and logic flowchart of a power supply system for a power inspection drone. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figures 1 to 5 As shown, the embodiments of this utility model include:

[0026] System overall structure

[0027] The power supply system for power inspection drones includes a charging base 100 and a compatible drone, with the following specific structure:

[0028] The charging base 100 is made of high-strength aluminum alloy and has a charging groove 111 on the top. The edge of the charging groove 111 is machined with an annular waterproof groove 140 and a sealing ring is embedded in the groove. The charging groove 111 is used to accommodate the power receiving module 201 of the drone.

[0029] Charging interface: located inside the charging groove 111, including: magnetic positioning unit 112: composed of neodymium iron boron magnets distributed in a ring array to form a multi-pole magnetic field distribution.

[0030] Conductive contact 113: Made of gold-plated copper sheet, it is arranged at intervals with the magnetic positioning unit 112 and connected to the power management module 120 through a flexible circuit.

[0031] Power management module 120 includes a fast charging unit, a temperature monitoring unit, and a multi-stage voltage regulator circuit. The fast charging unit supports the PD3.0 protocol and is equipped with an overvoltage protection circuit and a reverse current blocking module; the temperature monitoring unit monitors the temperature of the conductive contact 113 in real time using an infrared temperature probe.

[0032] Environmental monitoring module 130: integrates a temperature and humidity sensor and a dust detection unit. The temperature and humidity sensor uses a high-precision SHT35 chip, and the dust detection unit can monitor PM2.5 and PM10 concentrations in real time.

[0033] Main control unit: Based on STM32 microcontroller, it receives data from environmental detection module 130 and dynamically adjusts charging parameters to control the magnetic positioning unit 112 to magnetically align with the drone.

[0034] Solar power supply module: including solar panel 152, energy storage battery and MPPT controller.

[0035] Solar panel 152: Made of monocrystalline silicon, it is connected to the base sidewall via a flipping mechanism. The flipping mechanism includes a flipping shaft 151, a support rod, and a drive motor, which can automatically adjust the tilt angle of the solar panel 152 from 30° to 60°.

[0036] Energy storage battery: a lithium iron phosphate battery pack with a rated voltage of 48V and a capacity of 20Ah, connected in parallel with the power management module 120.

[0037] MPPT controller: Integrated into the main control unit, enabling seamless switching between solar and mains power.

[0038] Communication module: Supports 4G / 5G and LoRa dual-mode communication for real-time interaction with drones and remote control centers to exchange charging status and environmental data.

[0039] Power receiving module 201: Located at the bottom of the UAV, including:

[0040] Magnetic adsorption sheet 202: It adopts a neodymium iron boron magnet array with opposite polarity to the magnetic positioning unit 112 of the charging base 100, and the magnet diameter and spacing are matched with the charging base 100.

[0041] Charging electrode 203: Gold-plated copper sheet, its distribution position corresponds one-to-one with the conductive contact 113 of the charging base 100, and is connected to the drone battery through wires.

[0042] Buffer protection frame: Made of elastic silicone material, it covers the power receiving module 201 and has an embedded pressure sensor for detecting charging contact pressure. The bottom of the buffer protection frame has a guide slope with an inclination angle of 45°, forming a sliding fit structure with the edge of the charging groove 111.

[0043] II. System Working Principle

[0044] Magnetic alignment and landing

[0045] After receiving the charging command, the drone identifies the charging groove 111 on the top of the charging base 100 through the onboard vision system and adjusts its flight attitude to align with the groove.

[0046] When the drone lands, the guide ramp of the buffer protection frame contacts the edge of the charging groove 111 to assist in initial positioning. The magnetic adsorption sheet 202 and the magnetic positioning unit 112 generate magnetic attraction, pulling the drone into the center of the groove, so that the charging electrode 203 and the conductive contact 113 are precisely aligned with an error of ≤0.5mm.

[0047] Dynamic adjustment of charging parameters

[0048] The main control unit detects the contact pressure through a pressure sensor. When the pressure is ≥10N, it determines that the docking is complete and starts the charging process.

[0049] The environmental monitoring module 130 collects environmental data in real time: if the temperature is >45℃ or the humidity is >80%, the main control unit reduces the charging current to a safe threshold, for example, from 3A to 1.5A; if the dust concentration exceeds the standard (PM2.5 >150μg / m³), the main control unit will reduce the charging current to a safe threshold. 3 It will pause charging and send an alarm signal.

[0050] Multi-power supply collaborative operation

[0051] The solar power module prioritizes charging the energy storage battery, and the MPPT controller tracks the maximum power point in real time. When the mains power is interrupted, the system automatically switches to solar power mode and outputs a stable voltage through a multi-stage voltage regulation circuit.

[0052] Security protection and remote monitoring

[0053] The temperature monitoring unit monitors the temperature of conductive contact 113 in real time. If the temperature is greater than 60°C, the overvoltage protection circuit is triggered to cut off the power supply.

[0054] The communication module uploads charging status, environmental data, and fault codes to the remote control center, supporting remote start / stop control and parameter adjustment.

[0055] landing phase

[0056] The drone flew over the charging base 100, and the vision system identified the location of the charging groove 111.

[0057] The guide slope of the buffer protection frame slides into contact with the edge of the groove to correct horizontal position deviation.

[0058] Magnetic locking phase

[0059] The magnetic adsorption sheet 202 and the magnetic positioning unit 112 are attracted by magnetic poles, and the drone is pulled into the center of the groove, so that the charging electrode 203 is in complete contact with the conductive contact 113.

[0060] Charging control phase

[0061] The main control unit calculates the maximum charging power based on environmental data, for example, 100W at 25℃ and 60W at 40℃.

[0062] The fast charging unit dynamically adjusts the output voltage to 5V / 9V / 12V and the maximum current to 3A according to the PD3.0 protocol.

[0063] Exception handling phase

[0064] If an abnormal environment is detected, such as high temperature, high humidity, or excessive dust, the main control unit will suspend charging and activate an alarm.

[0065] The remote control center can send commands via the communication module to forcibly terminate charging or adjust parameters.

[0066] Charging complete stage

[0067] When the drone's battery level is ≥95%, the main control unit disconnects the charging circuit but maintains the magnetic attraction to fix the drone in place until a takeoff command is received.

[0068] Waterproof and insulation design

[0069] The annular waterproof groove 140 and the sealing ring form a double seal, achieving a waterproof rating of IP67.

[0070] The conductive contact 113 is surrounded by a waterproof insulating layer made of fluororubber, which is resistant to high temperatures and aging.

[0071] Solar panel 152 flipping mechanism

[0072] The flip motor drives the support rod to adjust the solar panel's tilt angle to 152 degrees, with a maximum flip angle of 60 degrees, ensuring maximum light efficiency.

[0073] Buffer protection frame optimization

[0074] The elastic silicone has a Shore A50 hardness, and the gap between the guide bevel and the edge of the groove is ≤2mm, ensuring smooth sliding and impact resistance.

[0075] This invention solves the problems of unstable positioning, low charging efficiency, and insufficient safety of traditional drone charging systems in complex outdoor scenarios through magnetic precise alignment, environmentally adaptive charging, and multi-power source coordinated control. It is especially suitable for long-term operation needs in fields such as power line inspection and disaster monitoring.

[0076] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A power supply replenishment system for a power inspection drone, characterized in that: Includes a charging base (100) and a compatible drone; The charging base (100) is equipped with a charging interface, a power management module (120), an environmental detection module (130), and a main control unit; The drone has a power receiving module (201) at its bottom that matches the charging interface.

2. The power supply system for a power inspection drone according to claim 1, characterized in that: The charging interface includes a charging groove (111) on the top of the charging base (100) and a magnetic positioning unit (112) and a conductive contact (113) in the charging groove (111). The conductive contact (113) is connected to the power supply module through a flexible circuit. The power receiving module (201) includes a magnetic adsorption sheet (202) and a charging electrode (203). The charging electrode (203) is connected to the UAV's battery through a wire. The power management module (120) includes a fast charging unit, a temperature monitoring unit, and a multi-stage voltage regulation circuit. The main control unit dynamically adjusts the charging parameters according to the temperature and humidity data fed back by the environmental detection module (130) and forms a magnetic alignment with the power receiving module (201) of the UAV through the magnetic positioning unit (112).

3. The power supply system for a power inspection drone according to claim 1, characterized in that: The top of the charging base (100) is provided with an annular waterproof groove (140), and a sealing ring is embedded in the annular waterproof groove (140). The charging interface is covered with a waterproof insulating layer. The environmental detection module (130) includes a temperature and humidity sensor and a dust detection unit.

4. The power supply system for a power inspection drone according to claim 2, characterized in that: The magnetic positioning unit (112) is a neodymium iron boron magnet arranged in a ring array. The conductive contact (113) is made of gold-plated copper sheet and is arranged at intervals with the magnetic positioning unit (112) to form a multi-pole magnetic alignment structure.

5. A power supply system for a power inspection drone according to claim 2, characterized in that: The magnetic adsorption plate (202) of the power receiving module (201) is a magnet array with the opposite polarity to the magnetic positioning unit (112), and the distribution positions of the charging electrodes (203) correspond one-to-one with the conductive contacts (113).

6. The power supply system for a power inspection drone according to claim 1, characterized in that: The charging base (100) also includes a solar power supply module, which includes a solar panel (152), an energy storage battery, and an MPPT controller. The energy storage battery is connected in parallel with the power management module (120). The solar panel (152) is mounted on the side edge of the charging base (100). A flipping mechanism is also provided between the solar panel (152) and the charging base (100). The flipping mechanism includes a flipping shaft (151) and a flipping motor that drives the flipping shaft (151) to flip. Support rods are provided at both ends of the flipping shaft (151), and the solar panel (152) is mounted on the support rods. The MPPT controller is integrated into the main control unit to achieve seamless switching between dual power supplies.

7. The power supply system for a power inspection drone according to claim 1, characterized in that: The power receiving module (201) of the UAV is provided with a buffer protection frame on the outside. The buffer protection frame is made of elastic silicone material and has a pressure sensor embedded inside to detect the charging contact pressure and feed it back to the main control unit.

8. A power supply system for a power inspection drone according to claim 7, characterized in that: The bottom of the buffer protection frame is provided with a guide slope, which forms a sliding fit structure with the edge of the charging groove (111) on the top of the charging base (100) to assist the initial positioning of the drone during landing.

9. A power supply system for a power inspection drone according to claim 2, characterized in that: The fast charging unit supports the PD3.0 protocol and is equipped with an overvoltage protection circuit and a reverse current blocking module. The temperature monitoring unit monitors the temperature of the conductive contact (113) in real time through an infrared temperature probe.

10. A power supply system for a power inspection drone according to claim 1, characterized in that: The charging base (100) has a built-in communication module that supports 4G / 5G and LoRa dual-mode communication, which is used to interact with the drone and remote control center and upload charging status and environmental monitoring data in real time.

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