Transmission tower steel tower material corrosion image unmanned aerial vehicle collection method and collection system

Abstract

This invention relates to a method for acquiring images of corrosion of steel tower materials of power transmission poles using drones. The specific steps include: pre-setting drone shooting rules, initially screening the shooting direction and tower body parts of the power transmission pole, and taking overall pictures; pre-decomposing the oversized components within each tower body part, and taking individual pictures of each decomposed small component; dividing and labeling the shooting area, and adjusting the shooting order and shooting content according to the preset shooting requirements and area numbers.

Description

Technical Field

[0001] This invention relates to the field of power transmission line operation and maintenance technology, specifically to a method and system for acquiring images of corrosion of steel tower materials of power transmission towers using unmanned aerial vehicles (UAVs). Background Technology

[0002] Drones, as an important means of inspecting overhead power transmission lines, have been widely used in the power industry. Currently, there is no effective method for capturing images of overhead power transmission line corrosion using drones. This invention standardizes a method for acquiring images of steel tower corrosion using drones, providing standardized data for intelligent corrosion identification technology and improving the accuracy of intelligent corrosion algorithms. Summary of the Invention

[0003] To address the problems existing in the prior art, this invention proposes a method and system for acquiring images of corrosion on steel transmission towers using unmanned aerial vehicles (UAVs).

[0004] The technical solution of the present invention is as follows:

[0005] On the one hand, this invention proposes a method for acquiring images of corrosion on steel transmission towers using unmanned aerial vehicles (UAVs), the specific steps of which include:

[0006] Pre-set drone shooting rules, initially select the shooting direction and tower body parts of the power transmission poles, and then shoot the whole thing;

[0007] The oversized components in each part of the tower were pre-disassembled, and each small component after disassembly was photographed individually.

[0008] The shooting areas are divided and numbered, and the shooting order and content are adjusted according to the preset shooting requirements and area numbers.

[0009] As a preferred embodiment, the preset drone shooting rules specifically involve only shooting images of the front and back of the power transmission pole; the tower body includes the tower head, tower body, and tower legs;

[0010] In a preferred embodiment, the pre-decomposition step of the oversized components in each part of the tower body specifically includes:

[0011] The range of the shooting components is preset according to the lens of the shooting camera;

[0012] First, the oversized components are disassembled according to the functional structure of the power transmission pole. After disassembly, the size of each small component exceeds the lens range, so it is disassembled again according to several connection nodes.

[0013] As a preferred embodiment, the preset shooting requirements are specifically as follows:

[0014] The shooting order is carried out one by one according to the numbering order. Within each area, each small part is photographed one by one from left to right and from top to bottom.

[0015] The shot was taken from a level angle, with each component positioned in the center of the frame, and the focus target was the intersection or node plate located in the center of each component.

[0016] On the other hand, this invention proposes a UAV-based image acquisition system for corrosion of steel transmission tower materials, comprising:

[0017] The data acquisition area planning module presets drone shooting rules, initially filters the shooting direction and tower body parts of the power transmission poles, and performs overall shooting;

[0018] The component decomposition module pre-decomposes the oversized components in each part of the tower and takes individual photos of each decomposed small component.

[0019] The data acquisition route planning module divides and labels the shooting areas, and adjusts the shooting order and content according to preset shooting requirements and area numbers.

[0020] As a preferred embodiment, the preset drone shooting rules specifically involve only shooting images of the front and back of the power transmission pole; the tower body includes the tower head, tower body, and tower legs;

[0021] In a preferred embodiment, the pre-decomposition step of the oversized components in each part of the tower body specifically includes:

[0022] The range of the shooting components is preset according to the lens of the shooting camera;

[0023] First, the oversized components are disassembled according to the functional structure of the power transmission pole. After disassembly, the size of each small component exceeds the lens range, so it is disassembled again according to several connection nodes.

[0024] As a preferred embodiment, the preset shooting requirements are specifically as follows:

[0025] The shooting order is carried out one by one according to the numbering order. Within each area, each small part is photographed one by one from left to right and from top to bottom.

[0026] The shot was taken from a level angle, with each component positioned in the center of the frame, and the focus target was the intersection or node plate located in the center of each component.

[0027] On the other hand, the present invention proposes an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements a method for collecting images of corrosion of steel tower materials of power transmission poles by drone, as described in any embodiment of the present invention.

[0028] On the other hand, the present invention proposes a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements a method for collecting images of corrosion of steel tower materials of power transmission poles by drone, as described in any embodiment of the present invention.

[0029] The present invention has the following beneficial effects:

[0030] 1. This invention standardizes the method for acquiring corrosion images of steel tower materials, provides standardized data for intelligent identification technology of tower corrosion, and improves the identification accuracy of intelligent corrosion algorithms.

[0031] 2. This invention systematically decomposes the components of the tower that need to be photographed, ensuring that each component can be captured with a clear image, thus obtaining more accurate data. Attached Figure Description

[0032] Figure 1 This is a flowchart of the present invention;

[0033] Figure 2 A breakdown of the tower body was filmed. Figure 1 ;

[0034] Figure 3 A breakdown of the tower body was filmed. Figure 2 ;

[0035] Figure 4 Planning diagram of a single-circuit straight-line 500kV AC transmission line using a wine glass tower;

[0036] Figure 5 Planning diagram of a double-circuit tension umbrella-shaped tower for a 500kV AC transmission line;

[0037] Figure 6 Planning diagram of a single-circuit straight cat-head tower for a 220kV AC line;

[0038] Figure 7 Planning diagram of a single-circuit tension tower for a 220kV AC line. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] It should be understood that the step numbers used in the text are for ease of description only and are not intended to limit the order in which the steps are performed.

[0041] It should be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0042] The terms “comprising” and “including” indicate the presence of the described feature, whole, step, operation, element and / or component, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or collections thereof.

[0043] The term “and / or” refers to any combination of one or more of the associated listed items, as well as all possible combinations, and includes these combinations.

[0044] Example 1:

[0045] See Figure 1 A method for acquiring images of corrosion on steel transmission towers using drones, comprising the following steps:

[0046] Pre-set drone shooting rules, initially select the shooting direction and tower body parts of the power transmission poles, and then shoot the whole thing;

[0047] The oversized components in each part of the tower were pre-disassembled, and each small component after disassembly was photographed individually.

[0048] The shooting areas are divided and numbered, and the shooting order and content are adjusted according to the preset shooting requirements and area numbers.

[0049] In a preferred embodiment of this invention, the preset drone shooting rules specifically involve only shooting images of the front and back of the power transmission pole; the tower body includes the tower head, tower body, and tower legs;

[0050] In this embodiment, all footage should be taken only when the operational safety conditions permit. If the safety conditions are stringent, footage may not be taken. For example, the tower head of a 220kV cat-head tower is relatively small, and the risk of crossing the conductor is high when photographing the crossarm; therefore, such footage may not be taken.

[0051] For shooting the tower legs, only the upper half needs to be photographed. Shooting can be selective based on environmental conditions; if there are obstacles on the ground, it is not necessary to shoot.

[0052] In a preferred embodiment of this invention, the step of pre-disassembling the oversized components in each part of the tower body specifically involves:

[0053] The range of the shooting components is preset according to the lens of the shooting camera;

[0054] First, the oversized components are disassembled according to the functional structure of the power transmission pole. After disassembly, the size of each small component exceeds the lens range, so it is disassembled again according to several connection nodes.

[0055] In this embodiment, to meet the resolution requirements, when the component size is too large, it can be decomposed into several appropriately sized components to make it suitable for single-photo shooting.

[0056] The width of a single component should not exceed 7 meters and the height should not exceed 5 meters.

[0057] The tower body is divided into multiple sections using "X" and "K" shaped diagonal members as units. Several "X" and "K" shaped diagonal members in the upper part of the tower body can be considered as one section. If an "X" shaped diagonal member is narrow and tall, it can be divided into two "V" shapes for photography. If the "K" shaped diagonal members near the tower legs are too large, the left and right sides of the "K" shaped diagonal members can be photographed separately.

[0058] Specific examples Figure 2 and Figure 3 As shown, in Figure 2 In the middle section, the upper part of the tower is smaller, so the "X" and "K" shaped diagonal members are combined into one component, just reaching the first cladding at the top. The lower part of the tower is larger, so a single "X" shaped diagonal member is used as a single component. Figure 3 In the middle section, the lower part of the tower is relatively large, so a single "X"-shaped diagonal member is used as a single component. Near the tower legs, because the base of the tower is very large, a single "K"-shaped diagonal member is divided into left and right parts.

[0059] If the crossbeam is no more than 7 meters in length, it can be photographed as a single image; when it is larger, it can be divided into two parts, left and right, or three parts, left, middle tower body, and right.

[0060] If the dimensions of the grounding bracket and the adjacent conductor crossarm are both small, they can be combined into one picture.

[0061] In a preferred embodiment of this invention, the preset shooting requirements are specifically as follows:

[0062] The shooting order is carried out one by one according to the numbering order. Within each area, each small part is photographed one by one from left to right and from top to bottom.

[0063] The shot was taken from a level angle, with each component positioned in the center of the frame, and the focus target was the intersection or node plate located in the center of each component.

[0064] In practice, the tower components should be positioned in the center of the frame. At the same time, the drone should be positioned as close as possible (not more than 5.5 meters away, but not less than 2.5 meters away) to capture the tower components. Each tower component should be captured in its entirety, but there should be blank space around the edges of the frame, and it should not be completely filled.

[0065] When shooting between two adjacent components, an appropriate degree of overlap should be maintained, generally with adjacent edges overlapping by about 10%. Except for the tower materials shared between the two components, other parts of the tower materials should not be repeatedly captured in the shot.

[0066] The resolution of the collected tower material images should be no less than 1.6 mm per pixel.

[0067] Try to shoot from eye level. If you need to shoot from above, the angle should not exceed 10º.

[0068] When shooting, ensure that the camera parameters are set reasonably to guarantee clear images, proper exposure, and no blurring.

[0069] A fixed-focus camera with at least 20 megapixels should be used for shooting, and the original aspect ratio should be used for the images.

[0070] Example 2:

[0071] Based on the shooting methods described above, some common tower-shaped shooting methods are listed.

[0072] like Figure 4 As shown in Table 1 below, the shooting method for a single-circuit straight-line 500kV AC transmission line is as follows:

[0073] Drone hovering area Location number Shooting location Shooting requirements Drone shooting location Shooting angle 1 1 Left Prime Minister's Cross Arm Must-see Centered and facing the component eye level 2 2 Central phase crossbeam Selection of shots Centered and facing the component Eye level / Top view 3 3 Right Prime Minister Crossbar Must-see Centered and facing the component eye level 4 4 left side of the upper arm Must-see Centered and facing the component eye level 5 5 upper arm right side Must-see Centered and facing the component eye level 6 6 Lower arm Must-see Centered and facing the component eye level 7 7 Tower body 1 Must-see Centered and facing the component eye level 8 8 Tower body 2 Must-see Centered and facing the component eye level 9 9 Left side of the tower leg Selection of shots Upper middle of the tower leg Eye level / Top view 10 10 right side of the tower leg Selection of shots Upper middle of the tower leg Eye level / Top view

[0074] Table 1. Shooting Rules for a Single-Circuit Straight-Line Wine Glass Tower on a 500kV AC Transmission Line

[0075] like Figure 5 As shown in Table 2, the shooting method for the double-circuit tension umbrella tower of a 500kV AC line is as follows:

[0076] Drone hovering area Location number Shooting location Shooting requirements Drone shooting location Shooting angle 1 1 left side of the upper phase crossbar Must-see Centered and facing the component eye level 2 2 Upper crossbar right side Must-see Centered and facing the component eye level 3 3 Upper image, lower tower body Must-see Centered and facing the component eye level 4 4 Left side of the middle phase crossarm Must-see Centered and facing the component eye level 5 5 Zhongxiang Tower Body Must-see Centered and facing the component eye level 6 6 Right side of the middle phase crossarm Must-see Centered and facing the component eye level 7 7 The lower part of the central phase of the tower Must-see Centered and facing the component eye level 8 8 Lower phase crossarm left side Must-see Centered and facing the component eye level 9 9 Lower Pagoda Body Must-see Centered and facing the component eye level 10 10 Lower phase crossarm right side Must-see Centered and facing the component eye level 11 11 Tower body 1 Must-see Centered and facing the component eye level 12 12 Tower body 2 Must-see Slightly above center Eye level / Top view 13 13 Tower body 3 Must-see Slightly above center Eye level / Top view 14 14 Tower body 4 Must-see Slightly above center Eye level / Top view

[0077] Table 2. Shooting Rules for 500kV AC Line Double-Circuit Tension Umbrella Towers

[0078] like Figure 6 As shown in Table 3, the shooting method for a single-circuit straight-line catenary tower of a 220kV AC line is as follows:

[0079] Drone hovering area Location number Shooting location Shooting requirements Drone shooting location Shooting angle 1 1 Lower arm Must-see Centered and facing the component eye level 2 2 Tower body 1 Must-see Centered and facing the component eye level 3 3 Tower body 2 Must-see Centered and facing the component eye level 4 4 Tower body 3 Must-see Centered and facing the component eye level 5 5 Tower body 4 Must-see Centered and facing the component eye level 6 6 Tower body 5 Must-see Centered and facing the component eye level

[0080] Table 3. Shooting Rules for Single-Circuit Straight-Line Cat-Head Towers of 220kV AC Lines

[0081] like Figure 7 As shown in Table 4, the shooting method for a single-circuit tension tower of a 220kV AC line is as follows:

[0082] Drone hovering area Location number Shooting location Shooting requirements Drone shooting location Shooting angle 1 1 left side of the upper crossarm Must-see Centered and facing the component eye level 2 2 upper crossarm right side Must-see Centered and facing the component eye level 3 3 Lower crossarm left side Must-see Centered and facing the component eye level 4 4 Lower crossarm right side Must-see Centered and facing the component eye level 5 5 Tower body 1 Must-see Centered and facing the component eye level 6 6 Tower body 2 Must-see Centered and facing the component eye level 7 7 Tower body 3 Must-see Centered and facing the component eye level 8 8 Tower body 4 Must-see Centered and facing the component eye level 9 9 Tower body 5 Must-see Centered and facing the component eye level

[0083] Table 4. Shooting Rules for Single-Circuit Tension Towers of 220kV AC Lines

[0084] Example 3:

[0085] This embodiment discloses an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, it implements a method for collecting images of corrosion of steel tower materials of power transmission towers by drone, as described in any embodiment of the present invention.

[0086] Example 4:

[0087] A computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements a method for collecting images of corrosion of steel tower materials of power transmission poles by drone, as described in any embodiment of the present invention.

[0088] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A method for acquiring images of corrosion of steel transmission tower materials using a drone, characterized in that, The specific steps include: Pre-set drone shooting rules, initially select the shooting direction and tower body parts of the power transmission poles, and then shoot the whole thing; The oversized components in each part of the tower were pre-disassembled, and each small component after disassembly was photographed individually. Divide and number the shooting areas, and adjust the shooting order and content according to the preset shooting requirements and area numbers; The preset drone shooting rules specifically stipulate that only the front and back images of the power transmission poles will be captured; the tower body includes the tower head, tower body, and tower legs; The specific steps for pre-disassembling the oversized components in each part of the tower are as follows: The range of the shooting components is preset according to the lens of the shooting camera; First, the oversized components are disassembled according to the functional structure of the power transmission pole. After disassembly, the size of each small component exceeds the lens range, so it is disassembled again according to several connection nodes. The preset shooting requirements are as follows: The shooting order is carried out one by one according to the numbering order. Within each area, each small part is photographed one by one from left to right and from top to bottom. The shot was taken from a level angle, with each component positioned in the center of the frame, and the focus target was the intersection or node plate located in the center of each component.

2. A UAV-based image acquisition system for corrosion of steel transmission tower materials, characterized in that, include: The data acquisition area planning module presets drone shooting rules, initially filters the shooting direction and tower body parts of the power transmission poles, and performs overall shooting; The component decomposition module pre-decomposes the oversized components in each part of the tower and takes individual photos of each decomposed small component. The data acquisition route planning module divides and labels the shooting areas, and adjusts the shooting order and content according to the preset shooting requirements and area numbers; The preset drone shooting rules specifically stipulate that only the front and back images of the power transmission poles will be captured; the tower body includes the tower head, tower body, and tower legs; The specific steps for pre-disassembling the oversized components in each part of the tower are as follows: The range of the shooting components is preset according to the lens of the shooting camera; First, the oversized components are disassembled according to the functional structure of the power transmission pole. After disassembly, the size of each small component exceeds the lens range, so it is disassembled again according to several connection nodes.

3. The UAV image acquisition system for corrosion of steel transmission tower materials according to claim 2, characterized in that, The preset shooting requirements are as follows: The shooting order is carried out one by one according to the numbering order. Within each area, each small part is photographed one by one from left to right and from top to bottom. The shot was taken from a level angle, with each component positioned in the center of the frame, and the focus target was the intersection or node plate located in the center of each component.

4. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the UAV acquisition method for corrosion images of steel tower materials of power transmission poles as described in claim 1.

5. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the UAV method for collecting corrosion images of steel transmission tower materials as described in claim 1.

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