Illumination unmanned aerial vehicle based on laser reflection

Abstract

The invention provides an illumination unmanned aerial vehicle based on laser reflection, and belongs to the technical field of power grid inspection. The unmanned aerial vehicle mainly comprises an unmanned aerial vehicle body, an optical device and a laser emitting device. The laser emitting device is arranged on the ground and is used for emitting laser to the optical device on the unmanned aerial vehicle body; the optical device is installed on the unmanned aerial vehicle body, receives and reflects the laser emitted by the laser emitting device and is used for illumination. According to the lighting unmanned aerial vehicle based on laser reflection, the laser emitting device is arranged on the ground, the optical device is arranged on the unmanned aerial vehicle body, the laser emitting device emits laser to the optical device from the ground, the laser is used for lighting after being reflected, and the unmanned aerial vehicle can flexibly fly in the air for routing inspection without carrying a power line; and the flexibility and safety of unmanned aerial vehicle inspection operation are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of power grid inspection, and in particular to a lighting drone based on laser reflection. Background Art

[0002] Lighting drones refer to drones that use drone technology to achieve lighting functions by carrying high-intensity LED lights or other lighting equipment. In power grid inspections, lighting drones can provide necessary lighting support, especially at night or in low-light environments, which helps inspectors to observe the status of power grid equipment and lines more clearly. The combination of drones and lighting equipment can improve the flexibility and efficiency of inspections. In addition, power grid inspections often need to be carried out at high altitudes or in complex environments, and traditional manual inspections have great safety risks. Through lighting drone inspections, inspectors can control drones for inspections on the ground or in safe areas through remote controls, without having to climb poles or enter dangerous areas in person, thus avoiding direct contact with dangerous areas and reducing safety risks during inspections. Therefore, lighting drone inspections do not require a lot of manpower investment, reducing human resource costs. Lighting drones are light and reliable, compact in structure, and have excellent performance, and are not restricted by geographical and environmental conditions. They can easily fly over complex terrain, such as mountainous areas and hilly areas, and reach areas that are difficult to reach manually for inspections. This makes power grid inspections cover a wider range, can discover more potential safety hazards, and greatly shortens the inspection cycle compared to traditional manual inspection methods. Lighting drones are widely used in power grid inspection operations due to the above advantages.

[0003] However, the lighting drones that are currently in common use still have certain problems: if the lighting equipment mounted on the drone needs to operate for a long time, a large amount of electricity will be required, and the power supply of the drone itself is not enough to meet the flight and long-term lighting needs at the same time. Therefore, an external power supply is needed to power the lighting equipment mounted on the drone. The power cord drawn from the ground power supply will also move in the air as the lighting drone flies, which brings a lot of trouble to the inspection work, and the dragged power cord will cause secondary safety hazards to the power grid.

[0004] Based on this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a lighting drone based on laser reflection, which does not need to carry a power cord for inspection, thereby improving the flexibility and safety of the drone's inspection operation.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The lighting drone based on laser reflection is characterized by comprising: a drone body, an optical device and a laser emitting device; wherein the laser emitting device is arranged on the ground and is used to emit laser to the optical device on the drone body; the optical device is installed on the drone body and receives and reflects the laser emitted by the laser emitting device for lighting.

[0008] Furthermore, the optical device includes: a reflector installed at the bottom or side of the drone body, used to receive the laser emitted by the laser emitting device and reflect the light; a first lens, located on the side of the reflector reflecting the light, used to receive the light reflected by the reflector and refract it.

[0009] In order to use the reflected light for better lighting, the present invention provides a preferred solution, wherein the first lens is a prism; one of the surfaces of the first lens serves as its incident surface facing the reflector, and the other two surfaces serve as two refractive surfaces of the first lens; the laser emitting device emits at least two laser beams onto the reflector, which are respectively incident on the incident surface of the first lens after reflection, and are refracted by the first lens and then emitted from the two refractive surfaces of the first lens.

[0010] In order to further adjust the direction of the light beam for focusing illumination, the present invention provides a preferred solution, wherein the optical device also includes: a second lens and a third lens; the second lens and the third lens are both prisms; one of the surfaces of the second lens serves as its incident surface facing one of the refractive surfaces of the first lens, and the second surface of the second lens serves as its refractive surface; one of the surfaces of the third lens serves as its incident surface facing the other refractive surface of the first lens, and the second surface of the third lens serves as its refractive surface; the second lens and the third lens are respectively used to receive two beams of light refracted from the first lens and refract them again.

[0011] In order to enable the optical device of the drone to still receive the laser and reflect it at a desired angle during flight, the present invention provides a preferred solution, wherein the laser reflection-based lighting drone also includes an angle adjustment device, which is installed between the drone body and the optical device and is used to adjust the angle of the optical device and the angle of the reflected light.

[0012] In order to enable the optical device of the UAV to still receive the laser and reflect it at a required angle during the flight of the UAV, the present invention provides another preferred solution, wherein the laser reflection-based lighting UAV also includes an angle adjustment device, which is installed between the laser emitting device and the object on which the laser emitting device is installed, and is used to adjust the angle of the laser emitting device.

[0013] Compared with the prior art, the above technical solution has the following advantages:

[0014] The present invention is a lighting drone based on laser reflection, in which a laser emitting device is arranged on the ground and an optical device is arranged on the drone body. The laser emitting device emits laser from the ground to the optical device, which is used for lighting after reflection. The drone does not need to carry a power cord for inspection and can flexibly fly in the air for inspection, thereby improving the flexibility and safety of the drone's inspection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of an illuminating UAV based on laser reflection according to Embodiment 1 of the present invention;

[0017] Figure 2 This is a light path diagram of an illuminating drone based on laser reflection according to Example 1 of the present invention;

[0018] Figure 3 This is a schematic diagram of the structure of an illuminating drone based on laser reflection according to Embodiment 2 of the present invention;

[0019] Figure 4 This is a light path diagram of an illuminating drone based on laser reflection according to Embodiment 2 of the present invention;

[0020] Figure 5 This is a schematic diagram of the structure of the angle adjustment device in the lighting drone based on laser reflection according to embodiments 2 and 3 of the present invention;

[0021] Figure 6 This is a schematic diagram of the structure of an illuminating drone based on laser reflection according to Embodiment 3 of the present invention;

[0022] Figure 7 This is a schematic diagram of the structure of the laser emitting device in the laser reflection-based lighting UAV and on the laser emitting vehicle according to Example 3 of the present invention.

[0023] Figure numerals: drone body 100, fuselage 110, wing 120, propeller 130, optical device 200, reflector 210, first lens 220, second lens 230, third lens 240, pod 300, cabin body 310, bracket 320, angle adjustment device 400, base 410, connector 420, adjustment assembly 430, electric cylinder 431, telescopic rod 432, ball head 433, connecting block 434, laser emitting device 500, laser emitting vehicle 600. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] Example 1

[0026] Please refer to Figure 1 , this embodiment provides a lighting drone based on laser reflection, which is mainly composed of a drone body 100, an optical device 200 and a laser emitting device 500. Among them, the drone body 100 is mainly composed of a fuselage 110, a wing 120, a propeller 130 and other parts. The laser emitting device 500 is arranged on the ground and is used to emit laser to the optical device 200 on the drone body 100. The optical device 200 is installed on the drone body 100, receives and reflects the laser emitted by the laser emitting device 500 for lighting. The optical device 200 is mainly composed of a reflector 210 and a first lens 220. Among them, the reflector 210 is installed at the bottom of the drone body 100, and is used to receive the laser emitted by the laser emitting device 500 and reflect the light. The first lens 220 is located on the side of the reflector 210 that reflects the light, and is located below the reflector 210, and is used to receive the light reflected by the reflector 210 and refract it.

[0027] The laser emitting device 500 can be installed on a laser emitting vehicle 600 on the ground. A locator is set on the UAV body 100. The laser emitting vehicle 600 obtains the specific position of the UAV body 100 in real time, and performs real-time tracking and emitting lasers. The positioning technology can use real-time dynamic differential technology (RTK) to obtain high-precision position information of the UAV body 100.

[0028] In another preferred embodiment, the reflector 210 can be installed on the side of the drone body 100, such as the front, according to actual needs, and the first lens 220 is located in front of the reflector 210 and serves as a sight illumination together with the front field camera of the drone.

[0029] Please refer to Figure 2 In this embodiment, the first lens 220 is a prism, one of the surfaces of the first lens 220 is used as its incident surface facing the reflector 210, and the other two surfaces are used as two refractive surfaces of the first lens 220. The laser emitting device 500 emits a laser beam (composite light) toward the reflector 210, and after reflection, it enters the first lens 220, and the first lens 220 disperses the single beam of composite light to expand the illumination range.

[0030] This embodiment is a lighting drone based on laser reflection, in which a laser emitting device 500 is set on the ground, and an optical device 200 is set on the drone body 100. The laser emitting device emits laser from the ground to the optical device 200, which is used for lighting after reflection. The drone does not need to carry a power cord for inspection and can flexibly fly in the air for inspection, thereby improving the flexibility and safety of the drone's inspection operation.

[0031] In addition, this embodiment uses a prism as the first lens 220 in the optical device 200 to disperse the reflected laser light, expand the illumination range, and improve the inspection efficiency of the drone.

[0032] Example 2

[0033] Please refer to Figure 3 As a more preferred solution, this embodiment adds the following technical features on the basis of embodiment 1: the optical device 200 of this embodiment is also provided with two lenses, namely, a second lens 230 and a third lens 240, which together with the first lens 220 form a lens group in the form of a prism. This embodiment also provides a pod 300, which is fixed to the drone body 100 and is used to install the optical device 200. The pod 300 includes a bracket 320 fixed to the drone body 100, and a cabin 310 fixed to the bracket 320. The first lens 220, the second lens 230 and the third lens 240 are installed in the cabin 310; the reflector 210 is arranged in the bracket 320 outside the cabin 310. On the one hand, the pod 300 and the bracket 320 are mainly used to protect the optical device 200. On the other hand, the cabin 310 of the pod 300 is preferably made of an opaque material to collect reflected light and refracted light, which is convenient for focusing light, preventing excessive light dispersion, and ensuring lighting brightness. In addition, an angle adjustment device 400 is provided between the drone body 100 and the optical device 200 for adjusting the angle of the reflector in the optical device 200, thereby adjusting the angle of the reflected light.

[0034] refer to Figure 4This embodiment provides a preferred implementation of the optical device 200, wherein the second lens 230 and the third lens 240 are both prisms; one of the surfaces of the second lens 230 is used as its incident surface to face one of the refractive surfaces of the first lens 220, and the second surface of the second lens 230 is used as its refractive surface; one of the surfaces of the third lens 240 is used as its incident surface to face another refractive surface of the first lens 220, and the second surface of the third lens 240 is used as its refractive surface; the second lens 230 and the third lens 240 are respectively used to receive the two beams of light refracted from the first lens 220 and refract again. The laser emitting device 500 emits two beams of laser light to the reflector 210, which are respectively incident on the incident surface of the first lens 220 after reflection, and are respectively emitted from the two refractive surfaces of the first lens 220 after being refracted (scattered) by the first lens 220. The scattered light is further refracted by the second lens 230 and the second lens 230 and then diverges, further expanding the illumination range.

[0035] This embodiment provides a preferred implementation of the angle adjustment device 400, which is mainly composed of the following components: a base 410, a connector 420 fixed on one surface of the base 410, and an adjustment assembly 430 fixed on the other surface of the base 410. The adjustment assembly 430 mainly consists of an electric cylinder 431 and a telescopic rod 432 connected to the piston rod of the electric cylinder 431. The connector 420 is connected and fixed to the drone body 100; the end of the telescopic rod 432 is movably connected to the reflector 210, and the end of the telescopic rod 432 of the adjustment assembly 430 is movably connected to the reflector 210 / laser emitting device 500 through a spherical pair. In a more preferred embodiment, the back side of the reflector 210 is provided with connecting blocks 434 of the same number as the adjusting components 430, and the ends of the telescopic rods 432 of each adjusting component 430 are movably connected to the corresponding connecting blocks 434 through spherical pairs. The spherical pairs, i.e., the ends of the telescopic rods 432 are provided with ball heads 433, and a spherical groove (not shown) matching with the ball head 433 is provided inside the connecting block 434, so that the ball head 433 can flexibly rotate in the spherical groove space, but has a limit in the height direction, i.e., the ball head 433 is limited to rotate in the spherical groove to prevent it from escaping from the spherical groove. The adjusting components 430 can be provided with one, two, three, four, etc. Figure 5Four adjustment components 430 are used, which are respectively arranged on the four corners of the base 410. By adjusting the piston rod of the electric cylinder 431 to drive the telescopic rod 432 to extend and retract, the reflector 210 can be flexibly adjusted in multiple directions such as front, back, left and right, and different telescopic heights can be selected according to actual needs. Through the spherical pair connection structure between the telescopic rod 432 and the connecting block 434 on the reflector 210, the reflector 210 can be adjusted in multiple dimensions, multiple angles and accurately. At the same time, it is convenient to receive the incident laser, and the angles of laser reflection and refraction can be adjusted according to needs to adjust the lighting range.

[0036] This embodiment uses a lens combination in the form of a prism to refract the laser to make the light more uniform, which can not only improve the lighting effect, but also avoid the problem of too concentrated or glaring light. At the same time, the prism has a dispersion function, which can decompose white light into light of different wavelengths (such as red, orange, yellow, green, blue, indigo, and purple). By refracting and dispersing light, the prism can make the lighting more uniform and soft, reduce glare and shadows, and improve the lighting quality. In addition, by optimizing light distribution and reducing glare, the prism can improve the energy efficiency of the lighting system.

[0037] Example 3

[0038] Please refer to Figure 6 This embodiment provides another preferred implementation on the basis of Embodiment 2, retaining the preferred prism-shaped lens group, pod 300 and other structures in Embodiment 2. The main difference between this embodiment and Embodiment 2 is that the angle adjustment device 400 is installed between the laser emitting device 500 and the object (laser emitting vehicle 600) on which the laser emitting device 500 is installed, so as to adjust the angle of the laser emitting device 500. The reflector 210 on the drone body 100 is set at a fixed inclination angle. When the angle adjustment device 400 is installed between the laser emitting device 500 and the object (laser emitting vehicle 600) on which the laser emitting device 500 is installed, similar to Embodiment 2, the connecting piece 420 is fixedly connected to the laser emitting vehicle 600; the end of the telescopic rod 432 is movably connected to the laser emitting device 500. In a more preferred implementation, please refer to Figure 7, the same number of connection blocks 434 as the adjustment components 430 are arranged on the back of the laser emitting vehicle 600, and the ends of the telescopic rods 432 of each adjustment component 430 are movably connected to the corresponding connection blocks 434 through spherical pairs. As for the specific structure of the spherical pairs, the number of adjustment components 430, etc., all can refer to the settings in Example 2. The adjustment components 430 arranged on the laser emitting device 500 in this embodiment can select different telescopic heights according to actual needs, and through the spherical pair connection structure of the telescopic rod 432, multi-dimensional, multi-angle, and precise adjustment of laser emission can be achieved, which is convenient for hitting the laser on the reflector 210, and the angles of laser reflection and refraction can be adjusted as needed to adjust the illumination range.

[0039] The angle adjustment of the reflector 210 receiving the laser and the incident light is not limited to being achieved through the angle adjustment device 400, but can also be achieved by adjusting the position, height and angle of the drone, and the position of the laser transmitting vehicle 600.

[0040] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The above-described embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. An illumination drone based on laser reflection, characterized in that: include: The drone body, the optical device and the laser emitting device; the laser emitting device is located on the ground and is used to emit laser to the optical device on the drone body; the optical device is installed on the drone body and receives and reflects the laser emitted by the laser emitting device for lighting.

2. The laser reflection based lighting drone according to claim 1, characterized in that: The optical device includes: a reflector installed at the bottom or side of the drone body, used to receive the laser emitted by the laser emitting device and reflect the light; a first lens, located on the side of the reflector reflecting the light, used to receive the light reflected by the reflector and refract it.

3. The laser reflection based lighting drone according to claim 2, characterized in that: The first lens is a prism; one of the surfaces of the first lens serves as its incident surface facing the reflector, and the other two surfaces serve as two refractive surfaces of the first lens; the laser emitting device emits at least two laser beams onto the reflector, which are respectively incident on the incident surface of the first lens after reflection, and are respectively emitted from the two refractive surfaces of the first lens after being refracted by the first lens.

4. The laser reflection based lighting drone according to claim 3, characterized in that: The optical device also includes: a second lens and a third lens; the second lens and the third lens are both prisms; one of the surfaces of the second lens serves as its incident surface facing one of the refractive surfaces of the first lens, and the second surface of the second lens serves as its refractive surface; one of the surfaces of the third lens serves as its incident surface facing the other refractive surface of the first lens, and the second surface of the third lens serves as its refractive surface; the second lens and the third lens are respectively used to receive two beams of light refracted from the first lens and refract them again.

5. The laser reflection based lighting drone according to any one of claims 1 or 4, characterized in that: Also includes: The angle adjustment device is installed between the drone body and the optical device to adjust the angle of the optical device and adjust the angle of the reflected light, and / or the angle adjustment device is installed between the laser emitting device and the object on which the laser emitting device is installed to adjust the angle of the laser emitting device.

6. The laser reflection based lighting drone according to claim 5, characterized in that: The angle adjustment device comprises a base, a connecting piece fixed on one surface of the base, and an adjustment assembly fixed on the other surface of the base; the adjustment assembly comprises an electric cylinder and a telescopic rod connected to the piston rod of the electric cylinder; When the angle adjustment device is installed between the drone body and the optical device, the connecting member is fixedly connected to the drone body; the end of the telescopic rod is movably connected to the reflector; When the angle adjustment device is installed between the laser emitting device and the object on which the laser emitting device is installed, the connecting piece is fixedly connected to the object on which the laser emitting device is installed; and the end of the telescopic rod is movably connected to the laser emitting device.

7. The laser reflection based lighting drone according to claim 6, characterized in that: The adjusting components are provided with two or more; the end of the telescopic rod of each adjusting component is movably connected to the reflector / laser emitting device through a spherical pair.

8. The laser reflection based lighting drone according to claim 6 or 7, characterized in that: The back side of the reflector / the object on which the laser emitting device is mounted is provided with connection blocks having the same number as the adjustment components, and the end of the telescopic rod of each adjustment component is movably connected to the corresponding connection block through a spherical pair.

9. The laser reflection based lighting drone according to claim 4, characterized in that: It also includes a pod, which is fixed to the drone body and is used to install the optical device.

10. The laser reflection based lighting drone according to claim 9, characterized in that: The pod comprises a bracket fixed on the drone body and a pod fixed on the bracket; the first lens, the second lens and the third lens are installed in the pod; and the reflector is arranged in the bracket outside the pod.

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