A power distribution cabinet operation and maintenance method, system, terminal and medium in a humid environment

Abstract

The application relates to a power distribution cabinet operation and maintenance method and system in a humid environment, a terminal and a medium, and relates to the technical field of power distribution cabinet operation and maintenance. The method comprises the following steps: acquiring corrosion characteristics of each power distribution cabinet in a power distribution cabinet cluster; screening the power distribution cabinets according to the corrosion characteristics to obtain a first power distribution cabinet, wherein the corrosion characteristics of the first power distribution cabinet are worse than preset corrosion characteristics; acquiring a position distribution condition of the first power distribution cabinet; taking a first target power distribution cabinet in the first power distribution cabinet, and acquiring a first air inlet and a second air inlet of the first target power distribution cabinet, wherein the first air inlet and the second air inlet are located at different positions; determining an air inlet according to the position distribution condition; and adjusting a ventilation scheme of the first target power distribution cabinet according to the corrosion characteristics and the air inlet. The application has the effect of facilitating the operation and maintenance of the power distribution cabinet in the humid environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of power distribution cabinet operation and maintenance, in particular to a power distribution cabinet operation and maintenance method and system in a humid environment, a terminal and a medium. BACKGROUND

[0002] The power distribution cabinet is a key device in the power system for distributing, controlling and protecting electric energy, and its operation and maintenance work is directly related to the safe and stable operation of the power system.

[0003] The related technology needs to set various sensors in the power distribution cabinet in advance, such as temperature sensors, voltage sensors, current sensors, etc. After obtaining the readings of various sensors, the readings are compared with the preset threshold. If the reading is greater than the preset threshold, it is considered that there is a problem inside the power distribution cabinet, which needs to be maintained; if the reading is less than the preset threshold, it is considered that there is no problem inside the power distribution cabinet, and no maintenance is needed.

[0004] For the related technology in the above, in a humid environment, the influence of water on the power distribution cabinet is continuous and slow, and this influence is difficult to obtain directly through sensor readings. When the problem is found, the power distribution cabinet itself may have a large problem, resulting in difficult operation and maintenance. SUMMARY

[0005] In order to facilitate the operation and maintenance of the power distribution cabinet in a humid environment, the present application provides a power distribution cabinet operation and maintenance method and system in a humid environment, a terminal and a medium.

[0006] In a first aspect, the present application provides a power distribution cabinet operation and maintenance method in a humid environment, which adopts the following technical solution:

[0007] A power distribution cabinet operation and maintenance method in a humid environment, comprising:

[0008] Obtain the corrosion characteristics of each power distribution cabinet in the power distribution cabinet cluster;

[0009] According to the corrosion characteristics, the power distribution cabinet is screened to obtain a first power distribution cabinet, and the corrosion characteristics of the first power distribution cabinet are worse than the preset corrosion characteristics;

[0010] Obtain the position distribution of the first power distribution cabinet;

[0011] Take a first target power distribution cabinet in the first power distribution cabinet, and obtain a first air port and a second air port of the first target power distribution cabinet, wherein the first air port and the second air port are located at different positions;

[0012] According to the position distribution, determine the air inlet port from the first air port and the second air port;

[0013] According to the corrosion characteristics and the air inlet port, adjust the air exchange scheme of the first target power distribution cabinet.

[0014] By adopting the technical scheme, the first power distribution cabinet with a corrosion feature worse than a preset corrosion feature is accurately screened out by acquiring the corrosion features of the power distribution cabinet cluster; the air inlet is dynamically determined from the first air port and the second air port of the first target power distribution cabinet in combination with the position distribution of the first power distribution cabinet; and finally, the air replacement scheme is adjusted based on the corrosion features and the air inlet. The method realizes targeted operation and maintenance of the power distribution cabinet with high corrosion risk, effectively slows down the corrosion of the corrosive gas in the humid environment to the internal elements of the power distribution cabinet by optimizing the air inlet path and the air replacement strategy, and prolongs the service life of the equipment.

[0015] Optionally, a second power distribution cabinet in the power distribution cabinet cluster is taken;

[0016] An element image in the second power distribution cabinet is acquired;

[0017] A current element state of a target element and an element position distribution of the target element are acquired from the element image;

[0018] A similarity between the current element state and a standard element state is calculated to obtain an element monomer corrosion grade;

[0019] A spatial corrosion feature is obtained according to the element monomer corrosion grade and the element position distribution;

[0020] Environmental gas data of the second power distribution cabinet are acquired;

[0021] A concentration curve of a target gas in the environmental gas data is extracted, and the concentration curve is used to represent a change of the concentration of the target gas with time;

[0022] A time corrosion feature is obtained according to the concentration curve;

[0023] The spatial corrosion feature and the time corrosion feature are integrated to obtain a corrosion feature of the second power distribution cabinet.

[0024] By adopting the technical scheme, the element image of the second power distribution cabinet is acquired, the current element state and the element position distribution of the target element are extracted, the element monomer corrosion grade is obtained by calculating the similarity with the standard element state, and the spatial corrosion feature is generated in combination with the position distribution. Meanwhile, the concentration curve of the target gas in the environmental gas data is extracted, the change law of the concentration with time is analyzed to obtain the time corrosion feature, and the spatial and time two-dimensional corrosion features are integrated to comprehensively represent the comprehensive corrosion state of the power distribution cabinet under the structural distribution and dynamic exposure environment, thereby providing accurate basis for subsequent operation and maintenance decisions.

[0025] Optionally, a two-dimensional plan view of the second power distribution cabinet is generated;

[0026] According to the element position distribution, the target element is labeled in the two-dimensional plan view;

[0027] According to the position of the target element in the two-dimensional plan view, the element monomer corrosion grade is labeled in the two-dimensional plan view;

[0028] According to the element monomer corrosion grade, an isogram is generated in the two-dimensional plan view;

[0029] According to the isogram, the spatial corrosion feature is obtained.

[0030] By adopting the technical scheme, the target element is labeled in the graph according to the element position distribution, and the element monomer corrosion grade is associated; based on the corrosion grade data, an isogram is generated to intuitively quantify the spatial gradient distribution of the corrosion degree. This method converts discrete element corrosion states into continuous spatial corrosion features, accurately reveals local corrosion hot spot areas and diffusion trends in the cabinet, and improves the representation accuracy and operability of the spatial corrosion feature.

[0031] Optionally, according to the concentration curve, a first time period and a second time period are classified, the concentration in the first time period is greater than a preset concentration, and the concentration in the second time period is less than the preset concentration;

[0032] According to the first time period, a first concentration curve is intercepted in the concentration curve;

[0033] The first concentration curve is subjected to an integral operation to obtain a first time corrosion feature;

[0034] The product of the total duration of the second time period and a preset coefficient is calculated to obtain a second time corrosion feature;

[0035] The first time corrosion feature and the second time corrosion feature are integrated to obtain the time corrosion feature.

[0036] By adopting the technical scheme, according to the target gas concentration curve, a high-concentration first time period and a low-concentration second time period are divided by taking the preset concentration as a threshold; the first concentration curve in the first time period is subjected to an integral operation to quantify the cumulative exposure of high-concentration gas, and a first time corrosion feature is obtained; the product of the duration of the second time period and a preset coefficient is calculated to obtain a second time corrosion feature; and the two are integrated to obtain a time corrosion feature, which accurately reflects the dynamic corrosion effect of gas concentration fluctuation on equipment and avoids the limitations of single mean value analysis.

[0037] Optionally, according to the corrosion feature, the spatial corrosion feature and the time corrosion feature of the first target power distribution cabinet are generated;

[0038] According to the spatial corrosion feature and the position of the air inlet port, an adjacent element is extracted, and a distance from the adjacent element to the air inlet port is less than a preset distance threshold;

[0039] According to a relative position of the adjacent element and the air inlet port, an air inlet direction of the first target power distribution cabinet is set;

[0040] According to the time corrosion feature, an air inlet rate is set;

[0041] According to the air inlet direction and the air inlet rate, the air replacement scheme is formed.

[0042] By adopting the technical solution, based on the spatial corrosion feature and the position of the air inlet port of the first target power distribution cabinet, an adjacent element with a distance less than a preset distance threshold is extracted; according to the relative position of the adjacent element and the air inlet port, the air inlet direction is set to avoid direct air inlet in a high corrosion area; meanwhile, according to the time corrosion feature, the air inlet rate is dynamically set to adapt to the ventilation demand under different gas concentrations; finally, the directional and quantitative air replacement scheme is formed to realize efficient discharge of corrosive gas and accurate introduction of clean air, and to maximize the corrosion prevention effect.

[0043] Optionally, clustering operation is performed according to the position of the adjacent element to obtain a plurality of clustering clusters;

[0044] It is judged whether the clustering cluster covers a candidate air inlet direction of the air inlet port;

[0045] If yes, corrosion levels of each adjacent element in the clustering cluster and an adjacent distance from the adjacent element to the air inlet port are obtained;

[0046] According to the corrosion level and the adjacent distance, a corrosion score of the clustering cluster is obtained;

[0047] A candidate air inlet direction corresponding to a minimum value in the corrosion score is taken to obtain the air inlet direction;

[0048] If no, the air inlet direction is selected from the candidate air inlet direction, and the air inlet direction is not formed by the clustering cluster.

[0049] By adopting the technical solution, the adjacent elements are grouped into clustering clusters through clustering operation, and it is judged whether the clustering cluster covers the candidate air inlet direction: if yes, the corrosion level and the adjacent distance of the adjacent element in each cluster are calculated to obtain a weighted corrosion score, and a minimum score direction is selected as the air inlet direction to actively avoid a high corrosion risk area; if no, the candidate air inlet direction without element shielding is directly selected. The method intelligently optimizes the air inlet path in combination with the spatial corrosion distribution, and significantly reduces the impact of corrosive gas on sensitive elements.

[0050] Optionally, a current time is obtained;

[0051] obtaining a target gas concentration according to the time corrosion feature and the current time;

[0052] retrieving a candidate intake rate from a preset rate mapping table according to the target gas concentration, the rate mapping table being used to store a mapping relationship between the target gas concentration and the intake rate;

[0053] determining whether the candidate intake rate is greater than a preset intake rate threshold;

[0054] if yes, setting the candidate intake rate as the intake rate;

[0055] if no, setting the intake rate threshold as the intake rate.

[0056] By adopting the above technical solution, the real-time target gas concentration is matched from the time corrosion feature according to the current time; the corresponding candidate intake rate is retrieved based on the preset rate mapping table; and whether the candidate intake rate is greater than the preset intake rate threshold is determined; if yes, the candidate intake rate is directly adopted to ensure the ventilation efficiency; and if no, the threshold rate is switched to maintain the basic ventilation demand. The method realizes the dynamic air volume control of the gas concentration self-adaption, avoids excessive energy consumption, and guarantees the safety redundancy protection of the equipment in the extreme environment.

[0057] In a second aspect, the application provides a power distribution cabinet operation and maintenance system in a humid environment, which adopts the following technical solution:

[0058] A power distribution cabinet operation and maintenance system in a humid environment, comprising:

[0059] an acquisition module, configured to acquire a corrosion feature, a first gas port and a second gas port;

[0060] a memory, configured to store a program of the power distribution cabinet operation and maintenance method in the humid environment;

[0061] a processor, the program in the memory can be loaded and executed by the processor and implement the power distribution cabinet operation and maintenance method in the humid environment.

[0062] By adopting the above technical solution, the first power distribution cabinet with a corrosion feature worse than a preset corrosion feature is accurately screened out by acquiring the corrosion feature of the power distribution cabinet cluster; the intake gas port is dynamically determined from the first gas port and the second gas port of the first target power distribution cabinet in combination with the position distribution of the first power distribution cabinet; and finally the ventilation scheme is adjusted based on the corrosion feature and the intake gas port. The method realizes the targeted operation and maintenance of the power distribution cabinet with high corrosion risk, effectively slows down the corrosion of the corrosive gas in the humid environment to the internal elements of the power distribution cabinet by optimizing the intake path and ventilation strategy, and prolongs the service life of the equipment.

[0063] In a third aspect, the present application provides a kind of intelligent terminal, adopt the technical scheme as follows:

[0064] A kind of intelligent terminal, including memory and processor, memory has the computer program of being capable of being loaded and executing the method described in any of the above by processor.

[0065] In a fourth aspect, the present application provides a kind of computer storage medium, can store corresponding program, has the characteristics of facilitating the operation and maintenance of power distribution cabinet in humid environment, adopt the technical scheme as follows:

[0066] A kind of computer readable storage medium, stores the computer program of being capable of being loaded and executing any kind of power distribution cabinet operation and maintenance method in humid environment by processor.

[0067] Summarized above, the present application includes at least one of the following beneficial technical effects:

[0068] By obtaining the corrosion feature of the power distribution cabinet cluster, the first power distribution cabinet with corrosion feature worse than the preset corrosion feature is accurately screened out;Combined with the position distribution of the first power distribution cabinet, the air inlet is dynamically determined from the first air port and the second air port of the first target power distribution cabinet;Finally, the ventilation scheme is adjusted based on the corrosion feature and the air inlet. This method realizes the targeted operation and maintenance of high-corrosion-risk power distribution cabinets, effectively slows down the corrosion of corrosive gases in the humid environment on the internal components of the power distribution cabinet by optimizing the air inlet path and ventilation strategy, prolongs the service life of the equipment;

[0069] By obtaining the element image of the second power distribution cabinet, the current element state and element position distribution of the target element are extracted, the similarity with the standard element state is calculated to obtain the element monomer corrosion grade, and the spatial corrosion feature is generated combined with the position distribution;At the same time, the target gas concentration curve in the environmental gas data is extracted, the change law of concentration with time is analyzed to obtain the time corrosion feature;Integrate the spatial and time two-dimensional corrosion features to comprehensively represent the comprehensive corrosion state of the power distribution cabinet under the structure distribution and dynamic exposure environment, and provide accurate basis for subsequent operation and maintenance decision;

[0070] By generating a two-dimensional plan view of the second power distribution cabinet, the target element is labeled in the graph according to the element position distribution, and the element monomer corrosion grade is associated;Based on the corrosion grade data, the contour map is generated, and the spatial gradient distribution of the corrosion degree is quantified directly. This method converts discrete element corrosion state into continuous spatial corrosion feature, accurately reveals the local corrosion hot spot area and diffusion trend in the cabinet, and improves the representation accuracy and operability of the spatial corrosion feature. BRIEF DESCRIPTION OF DRAWINGS

[0071] Figure 1 It is a kind of power distribution cabinet operation and maintenance method in humid environment provided by the embodiment of the present application.

[0072] Figure 2 is a flowchart of a method for calculating corrosion features provided by an embodiment of the present application.

[0073] Figure 3 is a flowchart of a method for calculating spatial corrosion features provided by an embodiment of the present application.

[0074] Figure 4 is a flowchart of a method for calculating temporal corrosion features provided by an embodiment of the present application.

[0075] Figure 5 is a flowchart of a method for generating a ventilation scheme provided by an embodiment of the present application.

[0076] Figure 6 is a flowchart of a method for generating an air intake direction provided by an embodiment of the present application.

[0077] Figure 7 is a flowchart of a method for generating an air intake rate provided by an embodiment of the present application.

[0078] Figure 8 is a structural diagram of a power distribution cabinet operation and maintenance system in a humid environment provided by an embodiment of the present application.

[0079] Figure 9 is a two-dimensional plan view of a power distribution cabinet provided by an embodiment of the present application.

[0080] Figure 10 is a schematic diagram of an air intake port provided by an embodiment of the present application. DETAILED DESCRIPTION

[0081] In order to make the objectives, technical solutions, and advantages of the present application clearer, the following will further describe the present application with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Figure 1 to Figure 10 and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.

[0082] An embodiment of the present application discloses a power distribution cabinet operation and maintenance method in a humid environment. With reference to Figure 1 , the method comprises:

[0083] Step S101: Obtain corrosion features of each power distribution cabinet in a power distribution cabinet cluster.

[0084] The power distribution cabinet cluster is a system composed of several power distribution cabinets.

[0085] The corrosion features are technical parameters for indicating the corrosion degree of the power distribution cabinet and its internal elements. In the present application, the corrosion features are composed of spatial corrosion features and temporal corrosion features.

[0086] In an alternative embodiment, the corrosion feature is obtained by a method comprising sub-steps S1011 to S1019, as follows:

[0087] Sub-step S1011: Take a second power distribution cabinet from the power distribution cabinet cluster.

[0088] The second power distribution cabinet is any one of the power distribution cabinets in the power distribution cabinet cluster. Optionally, the second power distribution cabinet is taken randomly from the power distribution cabinet cluster, or is taken in sequence according to the numbering order of the power distribution cabinets in the power distribution cabinet cluster.

[0089] Sub-step S1012: Obtain an element image in the second power distribution cabinet.

[0090] The element image can be obtained by a camera arranged in the second power distribution cabinet.

[0091] Illustratively, when the image captured by the camera is an overall image of the second power distribution cabinet, the image of the region where the element is located is extracted from the overall image to obtain the element image.

[0092] Illustratively, when the image captured by the camera only includes the element, the image output by the camera is regarded as the element image.

[0093] Sub-step S1013: Obtain a current element state of a target element and an element position distribution of the target element from the element image.

[0094] The target element refers to the element appearing in the element image. The element position distribution is used to represent the position of the target element in the second power distribution cabinet. Optionally, coordinates are used to represent the element position distribution.

[0095] The current element state is used to describe the corrosion condition of the target element. Illustratively, the region where the target element is located is framed in the element image to obtain a framed image. The color feature of the framed image is extracted. It is determined whether the color feature includes a feature corresponding to a target color. If not, the current element state is set to a default element state, which indicates that the target element has not been corroded. If so, the occupied area of the target color is calculated according to the color feature and the target color. The current element state is generated according to the occupied area. Further, when the occupied area is less than an area threshold, the generated current element state indicates that the target element is slightly corroded; when the occupied area is greater than the area threshold, the generated current element state indicates that the target element is severely corroded.

[0096] The target color is the color of the element after corrosion. For example, the target color is brown or green.

[0097] In some other embodiments, after obtaining the frame-enclosed image, the surface roughness of the target element is quantified. The current element state is generated according to the surface roughness. Further, when the surface roughness is less than a roughness threshold, the target element is considered to be uncorroded or slightly corroded; when the surface roughness is greater than a second roughness, the target element is considered to be severely corroded.

[0098] Sub-step S1014: Calculate the similarity between the current element state and the standard element state to obtain the element single-body corrosion level.

[0099] The standard element state refers to the state of the element when it is uncorroded.

[0100] The element single-body corrosion level is used to quantify the degree of corrosion of a single element.

[0101] For example, when the current element state is obtained by color features, an area ratio is obtained according to the ratio of the occupied area to the total area of the target element. According to the area ratio, the element single-body corrosion level is retrieved in a pre-set area-level mapping table. For example, when the area ratio is 0, the element single-body corrosion level is set to no corrosion, and the element single-body corrosion level is represented as 1. When the area ratio is greater than 0 and less than 5%, the element single-body corrosion is set to slight corrosion, and the element single-body corrosion level is represented as 2. When the area ratio is greater than 5% and less than 10%, the element single-body corrosion is set to moderate corrosion, and the element single-body corrosion level is represented as 3. When the area ratio is greater than 10%, the element single-body corrosion is set to severe corrosion, and the element single-body corrosion level is represented as 4.

[0102] For example, when the current element state is obtained by surface roughness, the area ratio is retrieved according to the surface roughness in a pre-set roughness-level mapping table.

[0103] Sub-step S1015: Obtain the spatial corrosion feature according to the element single-body corrosion level and the element position distribution.

[0104] For example, according to the element single-body corrosion level and the element position distribution, a spatial corrosion feature in the form of a vector is generated. For example, the target element includes element 1 and element 2, the coordinates of element 1 in the second power distribution cabinet are (5, 8), the element single-body corrosion level of element 1 is 2, the coordinates of element 2 in the second power distribution cabinet are (7, 6), and the element single-body corrosion level of element 2 is 4. The generated spatial corrosion feature can be { (1, 5, 8, 2), (2, 7, 6, 4)}.

[0105] Sub-step S1016: Obtain the environmental gas data of the second power distribution cabinet.

[0106] The environmental gas data represents the gas types and gas concentrations inside and outside the power distribution cabinet. In some embodiments, when the environmental gas data is acquired, a timestamp of the environmental gas data is also generated, which represents the generation time of the environmental gas data. For example, the environmental gas data includes water vapor. Further, if the power distribution cabinet is located near a chemical plant, a thermal power plant, etc., the environmental gas data also includes nitrogen oxides, chlorine-containing gases, ammonia, etc.

[0107] Sub-step S1017: Extracting a concentration curve of the target gas in the environmental gas data, the concentration curve being used to represent the change of the concentration of the target gas over time.

[0108] The target gas is a preset gas type. For example, the target gas is water vapor. Further, the target gas can also be a chlorine-containing gas, for example, the target gas is a gas derived from seawater evaporation.

[0109] Optionally, the timestamp of the environmental gas data and the environmental gas data itself are used to construct a discrete point graph, obtaining a concentration discrete graph. Curve fitting is performed on the concentration discrete graph, obtaining the concentration curve.

[0110] Sub-step S1018: Obtaining the time corrosion feature according to the concentration curve.

[0111] For example, the time sequence feature of the concentration curve is extracted, obtaining the time corrosion feature. The time sequence feature includes at least one of autocorrelation, moving average and Hurst index of the concentration curve.

[0112] Sub-step S1019: Integrating the space corrosion feature and the time corrosion feature, obtaining the corrosion feature of the second power distribution cabinet.

[0113] The space corrosion feature and the time corrosion feature are combined to form a matrix, obtaining the corrosion feature of the second power distribution cabinet.

[0114] Step S102: Screening the power distribution cabinet according to the corrosion feature, obtaining the first power distribution cabinet, the corrosion feature of the first power distribution cabinet being worse than the preset corrosion feature.

[0115] The preset corrosion feature is a preset empirical value, and the preset corrosion feature is the corrosion feature of the power distribution cabinet in which the element does not corrode.

[0116] Step S103: Acquiring the position distribution of the first power distribution cabinet.

[0117] The position distribution is used to record the position distribution of the first power distribution cabinet in the power distribution cabinet cluster. For example, the power distribution cabinets in the power distribution cabinet cluster are distributed in an array, and the array number of the first power distribution cabinet can be used to represent the position of the first power distribution cabinet.

[0118] Step S104: Take a first target power distribution cabinet from the first power distribution cabinets, and obtain a first air port and a second air port of the first target power distribution cabinet, the first air port and the second air port being located at different positions.

[0119] The first target power distribution cabinet is any one of the first power distribution cabinets.

[0120] The first air port and the second air port are two different air ports on the first target power distribution cabinet, and the first air port and the second air port are air inlet and outlet openings of the power distribution cabinet. The first air port and the air port can be used for air inlet or air outlet.

[0121] Step S105: Determine an air inlet port from the first air port and the second air port according to the position distribution.

[0122] Optionally, a first opposite direction of an air inlet direction of the first air port is obtained. A first quantity of the first power distribution cabinets located in the first opposite direction is determined according to the position distribution. A second opposite direction of an air inlet direction of the second air port is obtained. A second quantity of the first power distribution cabinets located in the second opposite direction is determined according to the position distribution. If the first quantity is greater than or equal to the second quantity, the second air inlet port is set as the air inlet port; if the first quantity is less than the second quantity, the first air inlet port is set as the air inlet port.

[0123] Step S106: Adjust an air exchange scheme of the first target power distribution cabinet according to the corrosion feature and the air inlet port.

[0124] The air exchange scheme includes an air inlet direction of the air inlet port and an air inlet rate.

[0125] By adopting the above technical solution, the first power distribution cabinet with a corrosion feature worse than a preset corrosion feature is accurately screened out by obtaining the corrosion feature of the power distribution cabinet cluster. The air inlet port is dynamically determined from the first air port and the second air port of the first target power distribution cabinet in combination with the position distribution of the first power distribution cabinet. Finally, the air exchange scheme is adjusted based on the corrosion feature and the air inlet port. This method realizes targeted operation and maintenance of high-corrosion-risk power distribution cabinets, effectively slows down the corrosion of corrosive gases in a humid environment on internal components of the power distribution cabinet by optimizing the air inlet path and the air exchange strategy, and prolongs the service life of the equipment.

[0126] Embodiments of the present application disclose a method for calculating a spatial corrosion feature. Referring to Figure 3 , the method comprises:

[0127] Step S301: Generate a two-dimensional plan view of the second power distribution cabinet.

[0128] The two-dimensional plan view is a plan view of a top-down perspective of the second power distribution cabinet. In some embodiments, the two-dimensional plan view of each power distribution cabinet is stored in a memory, and the two-dimensional plan view of the second power distribution cabinet can be directly obtained from the memory.

[0129] Step S302: According to the element position distribution, mark the target element in the two-dimensional plan view.

[0130] According to the element position distribution, determine the position of the target element in the second switchgear. According to the aforementioned position, mark the target element at the corresponding position of the two-dimensional plan view. For example, refer to Figure 9 In the two-dimensional plan view, mark the target element 901.

[0131] Step S303: According to the position of the target element in the two-dimensional plan view, mark the element monomer corrosion level in the two-dimensional plan view.

[0132] Obtain the element monomer corrosion level of the target element. According to the position of the target element in the two-dimensional plan view, mark the element monomer corrosion level in the two-dimensional plan. For example, refer to Figure 9 Mark the element monomer corrosion level in the two-dimensional plan, and the element monomer corrosion level of the target element 901 is 3.

[0133] Step S304: According to the element monomer corrosion level, generate the contour map in the two-dimensional plan view.

[0134] The contour map is a map that visualizes the element monomer corrosion level in the two-dimensional plan view, which connects points with the same element monomer corrosion level by contour lines.

[0135] For example, according to the discrete distribution of the element monomer corrosion level in the two-dimensional plan view, perform interpolation operation on the two-dimensional plan view to obtain the two-dimensional plan interpolation map. Fill the two-dimensional plan interpolation map to obtain the contour map.

[0136] Among them, the tool for generating the contour map in the two-dimensional plan view can use Matplotlib (a 2D drawing library using Python programming language, which can support output various types of charts).

[0137] Step S305: According to the contour map, obtain the spatial corrosion feature.

[0138] For example, extract statistical features and geometric features in the contour map to obtain the spatial corrosion feature. The spatial feature includes high concentration area, average concentration, peak concentration. The geometric feature includes the extreme point surrounded by the contour line and the contour line shape.

[0139] By adopting the technical scheme, the target element is labeled in the drawing according to the element position distribution and is associated with the element single corrosion grade by generating the two-dimensional plan of the second power distribution cabinet. The isogram is generated based on the corrosion grade data, and the spatial gradient distribution of the corrosion degree is quantified intuitively. The method converts the discrete element corrosion state into continuous spatial corrosion characteristics, accurately reveals the local corrosion hot spot area and diffusion trend in the cabinet, and improves the representation accuracy and operability of the spatial corrosion characteristics.

[0140] In the following embodiments, different concentrations have different corrosion effects on elements. When the concentration of the target gas is less than a certain amount, the corrosion effect of the target gas on the element is relatively limited. Therefore, the embodiment of the present application discloses a method for calculating a time corrosion feature. Referring to Figure 4 The method comprises:

[0141] Step S401: According to the concentration curve, the first time period and the second time period are classified, the concentration in the first time period is greater than the preset concentration, and the concentration in the second time period is less than the preset concentration.

[0142] The preset concentration is a preset empirical value, and the technical personnel can adjust the specific value of the preset concentration according to the actual demand.

[0143] For example, in the concentration curve, the first time period and the second time period are classified by taking the preset concentration as a boundary.

[0144] Step S402: According to the first time period, a first concentration curve is intercepted in the concentration curve.

[0145] The time corresponding to the first concentration curve falls into the first time period.

[0146] Step S403: The first concentration curve is integrated to obtain a first time corrosion feature.

[0147] The first time corrosion feature obtained by integrating the first concentration curve can represent the corrosion of the target gas on the target element in the first time period.

[0148] Step S404: The product of the total length of the second time period and a preset coefficient is calculated to obtain a second time corrosion feature.

[0149] The preset coefficient is a preset empirical value, and the technical personnel can adjust the value of the preset coefficient according to the actual demand. For example, the preset coefficient is 0.65.

[0150] Step S405: The first time corrosion feature and the second time corrosion feature are integrated to obtain a time corrosion feature.

[0151] The first time corrosion feature and the second time corrosion feature are integrated into the same vector to obtain the time corrosion feature.

[0152] By adopting the technical scheme, the first time period of high concentration and the second time period of low concentration are divided according to the target gas concentration curve and with the preset concentration as a threshold. The first concentration curve in the first time period is subjected to an integral operation, the cumulative exposure amount of the high-concentration gas is quantified, and the first time corrosion feature is obtained. The product of the time length of the second time period and the preset coefficient is calculated, and the second time corrosion feature is obtained. The two are integrated to obtain the time corrosion feature, which accurately reflects the dynamic corrosion effect of gas concentration fluctuation on equipment and avoids the limitation of single mean value analysis.

[0153] In the following embodiments, the ventilation scheme is composed of the air inlet direction and the air inlet rate. Therefore, the present application discloses a method for generating a ventilation scheme. Referring to Figure 5 , the method comprises:

[0154] Step S501: generating the space corrosion feature and the time corrosion feature of the first target power distribution cabinet according to the corrosion feature.

[0155] The method for generating the space corrosion feature and the time corrosion feature can refer to the embodiments shown in Figure 3 and Figure 4 , which will not be described here again.

[0156] Step S502: extracting the adjacent element according to the space corrosion feature and the position of the air inlet port, the distance from the adjacent element to the air inlet port being less than a preset distance threshold.

[0157] The preset distance threshold is a preset empirical value, and the technical personnel can adjust the specific value of the preset distance threshold according to the actual demand. For example, the preset distance threshold is 0.5 meters.

[0158] For example, the position of the air inlet port is located at the center of the sphere, and the preset distance threshold is the radius, forming a sphere. The elements located inside the sphere are regarded as the adjacent elements.

[0159] Step S503: setting the air inlet direction of the first target power distribution cabinet according to the relative position of the adjacent element and the air inlet port.

[0160] The air inlet direction refers to the direction of the air inlet of the air inlet port towards the inside of the power distribution cabinet. The specific content of determining the air inlet direction can refer to the embodiments shown in Figure 6 , which will not be described here again.

[0161] Step S504: setting the air inlet rate according to the time corrosion feature.

[0162] The air inlet rate refers to the rate at which the gas passes through the air inlet port. The specific content of determining the air inlet rate can refer to the embodiments shown in Figure 7 , which will not be described here again.

[0163] Step S505: Form a ventilation scheme according to the air inlet direction and the air inlet rate.

[0164] Exemplarily, the air inlet port is controlled to work according to the air inlet direction and the air inlet rate.

[0165] By adopting the technical scheme, based on the spatial corrosion characteristics of the first target power distribution cabinet and the air inlet port position, the adjacent elements with a distance less than a preset distance threshold are extracted. The air inlet direction is set according to the relative position of the adjacent elements and the air inlet port, to avoid direct air inlet in the high corrosion area. Meanwhile, the air inlet rate is dynamically set according to the time corrosion characteristics, to adapt to the ventilation demand under different gas concentrations. Finally, a directional and quantitative ventilation scheme is formed, to realize efficient exhaust of the corrosion gas and accurate introduction of clean air, and to maximize the corrosion prevention effect.

[0166] Embodiments of the present application disclose a method for generating an air inlet direction. Referring to Figure 6 The method comprises:

[0167] Step S601: Perform clustering operation according to the positions of the adjacent elements, to obtain a plurality of clustering clusters.

[0168] The clustering cluster is a cluster composed of at least two adjacent elements. Optionally, the clustering algorithm can adopt any one of a K-Means algorithm, a DBSCAN algorithm and a spectral clustering. In the embodiments of the present application, the clustering operation adopts the K-Means algorithm.

[0169] Step S602: Determine whether the clustering cluster covers a candidate air inlet direction of the air inlet port.

[0170] The candidate air inlet direction refers to an available air inlet direction of the air inlet port.

[0171] Exemplarily, a two-dimensional plan view of the first target power distribution cabinet is set. In the two-dimensional plan view, all candidate air inlet directions of the air inlet port are formed with the air inlet port as the center, and a preset length is set on the candidate air inlet direction to form a fan-shaped coverage area. In the fan-shaped coverage area, a radial line passing through the center is drawn, and the radial line passes through the clustering cluster. If the angle covered by the radial line completely covers the angle of the fan-shaped coverage area, it is considered that the clustering cluster covers the candidate air inlet direction of the air inlet port; if the angle covered by the radial line does not completely cover the angle of the fan-shaped coverage area, it is considered that the clustering cluster does not cover the candidate air inlet direction of the air inlet port.

[0172] If the clustering cluster covers the candidate air inlet direction of the air inlet port, steps S603 to S605 are executed;

[0173] If the clustering cluster does not cover the candidate air inlet direction of the air inlet port, step S606 is executed.

[0174] Step S603: If yes, the corrosion level of each adjacent element in the cluster and the adjacent distance of the adjacent element to the air inlet are obtained.

[0175] Optionally, the corrosion level refers to the element monomer corrosion level of the adjacent element.

[0176] Step S604: According to the corrosion level and the adjacent distance, the corrosion score of the cluster is obtained.

[0177] Optionally, the corrosion level is normalized to obtain a first corrosion score. The adjacent distance is normalized to obtain a second corrosion score. The first corrosion score and the second corrosion score are weighted to obtain the corrosion score of the cluster. The smaller the corrosion score, the smaller the corrosion effect of the gas flowing into the air inlet on the elements in the cluster.

[0178] Step S605: The candidate air inlet direction corresponding to the minimum value of the corrosion score is taken to obtain the air inlet direction.

[0179] Illustratively, the cluster corresponding to the minimum value of the corrosion score is obtained. The direction vector from the air inlet to the cluster is obtained to obtain the air inlet direction.

[0180] Step S606: If no, the air inlet direction is selected from the candidate air inlet direction, and the air inlet direction does not form a cluster.

[0181] Illustratively, when the cluster does not cover the candidate air inlet direction of the air inlet, it means that there is an air inlet direction, and the gas flowing into the air inlet will not pass through any cluster, so the direction which does not form a cluster is taken as the air inlet direction.

[0182] Illustratively, please refer to Figure 10 The candidate air inlet direction of the air inlet forms a sector OAB, and the adjacent elements form a cluster 1001. The rays are made from the O point to the inside of the sector OAB, and if there are rays that do not pass through the cluster 1001, these rays are recorded to form a sector OBC, and the air inlet direction is selected according to the sector OBC. In practice, the air inlet has a certain angle, so the angle COB needs to be greater than a certain angle.

[0183] By adopting the above technical scheme, the adjacent elements are grouped into clusters by clustering operation, and it is judged whether the cluster covers the candidate air inlet direction: if yes, the weighted corrosion score of the corrosion level of each element in the cluster and the adjacent distance is calculated, and the minimum score direction is selected as the air inlet direction to actively avoid the high corrosion risk area. If no, the candidate air inlet direction without element shielding is directly selected. This method combines the intelligent optimization of the air inlet path according to the space corrosion distribution, and significantly reduces the impact of corrosive gas on sensitive elements.

[0184] The embodiment of the application discloses a method for generating an air intake rate. Referring to Figure 7 The method comprises the following steps:

[0185] Step S701: obtaining a current time.

[0186] The current time is a UTC (Coordinated Universal Time) time. It is a standard time system. Optionally, the current time adopts a Unix timestamp.

[0187] Step S702: obtaining a target gas concentration according to a time corrosion characteristic and the current time.

[0188] For example, the concentration curve of the target gas is obtained according to the time corrosion characteristic. The data corresponding to the current time in the concentration curve is determined to obtain the target gas concentration. Figure 2 In the embodiment shown in the figure, the process of obtaining the time corrosion characteristic from the concentration gas is explained, so that the concentration curve of the target gas can be obtained, and the data corresponding to the current time in the concentration curve is obtained to obtain the target gas concentration.

[0189] Step S703: obtaining a candidate air intake rate according to the target gas concentration in a preset rate mapping table, and the rate mapping table is used to store the mapping relationship between the target gas concentration and the air intake rate.

[0190] The rate mapping table can be obtained by repeated experiments and measurements of technicians. When the target gas concentration is different, the air intake rate is also different, so as to ensure that the temperature inside the power distribution cabinet is not too high, and too much target gas does not enter the inside of the power distribution cabinet.

[0191] Step S704: determining whether the candidate air intake rate is greater than a preset air intake rate threshold.

[0192] The air intake rate threshold is the minimum air intake rate of the power distribution cabinet. In the power distribution cabinet, real-time air intake is needed for heat exchange, so as to ensure that the temperature inside the power distribution cabinet is not too high, and the air intake rate needs to be maintained above a certain degree. For example, the preset air intake rate threshold is the total power consumption of the equipment in the power distribution cabinet, and the total power consumption of the equipment is A, and the preset air intake rate threshold is A*0.15 m³ / s.

[0193] If the candidate air intake rate is greater than the preset air intake rate threshold, step S705 is performed.

[0194] If the candidate air intake rate is not greater than the preset air intake rate threshold, step S706 is performed.

[0195] Step S705: if yes, the candidate air intake rate is set as the air intake rate.

[0196] If the candidate air inlet rate is greater than the preset air inlet rate threshold, the candidate air inlet rate can meet the heat dissipation requirement of the power distribution cabinet and can also meet the requirement of reducing corrosion to the internal elements of the power distribution cabinet as much as possible.

[0197] Step S706: If no, the air inlet rate threshold is set as the air inlet rate.

[0198] If the candidate air inlet rate is not greater than the preset air inlet rate threshold, the heat dissipation requirement of the power distribution cabinet needs to be met to a certain extent, and therefore, the air inlet rate threshold is set as the air inlet rate.

[0199] By adopting the technical solution, the real-time target gas concentration is matched from the time corrosion feature at the current moment. The corresponding candidate air inlet rate is retrieved based on the preset rate mapping table. Whether the candidate air inlet rate is greater than the preset air inlet rate threshold is judged. If yes, the candidate air inlet rate is directly adopted, so as to ensure the ventilation efficiency. If no, the threshold rate is switched to, so as to maintain the basic ventilation requirement. The method realizes the dynamic air volume control of the gas concentration self-adaption, avoids excessive energy consumption, and guarantees the safety redundancy protection of the equipment in the extreme environment.

[0200] Based on the same inventive concept, an embodiment of the present application provides a power distribution cabinet operation and maintenance system in a humid environment, please refer to Figure 8 The system comprises:

[0201] The acquisition module 801 is configured to acquire the corrosion feature, the first air port and the second air port.

[0202] The memory 802 is configured to store the program of the power distribution cabinet operation and maintenance method in the humid environment.

[0203] The processor 803 is configured to load and execute the program in the memory, and implement the power distribution cabinet operation and maintenance method in the humid environment.

[0204] By adopting the technical solution, the corrosion feature of the power distribution cabinet cluster is acquired, the first power distribution cabinet with the corrosion feature worse than the preset corrosion feature is accurately screened out, the air inlet port is dynamically determined from the first air port and the second air port of the first target power distribution cabinet in combination with the position distribution of the first power distribution cabinet, and finally, the ventilation scheme is adjusted based on the corrosion feature and the air inlet port. The method realizes the targeted operation and maintenance of the power distribution cabinet with high corrosion risk, effectively slows down the corrosion of the corrosive gas in the humid environment to the internal elements of the power distribution cabinet by optimizing the air inlet path and the ventilation strategy, and prolongs the service life of the equipment.

[0205] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0206] The embodiment of the present application provides a computer readable storage medium, which stores a computer program capable of being loaded and executed by a processor to execute the power distribution cabinet operation and maintenance method in a humid environment.

[0207] The computer storage medium includes, for example, a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various program codes can be stored in the medium.

[0208] Based on the same inventive concept, the embodiment of the present application provides an intelligent terminal, which comprises a memory and a processor, and the memory stores a computer program capable of being loaded and executed by the processor to execute the power distribution cabinet operation and maintenance method in a humid environment.

[0209] Those skilled in the art can clearly understand that, for the convenience and brevity of description, only the division of the above functional modules is taken as an example, and in actual application, the above functions can be completed by different functional modules according to needs, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0210] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any feature disclosed in the specification (including the abstract and drawings) can be replaced by other equivalent or similar features unless specifically described. That is, each feature is only an example of a series of equivalent or similar features unless specifically described.

Claims

1. A power distribution cabinet operation and maintenance method in a humid environment, characterized in that, The method includes: Obtain the corrosion characteristics of each distribution cabinet in the distribution cabinet cluster; The distribution cabinets are screened according to the corrosion characteristics to obtain the first distribution cabinet, and the corrosion characteristics of the first distribution cabinet are worse than the preset corrosion characteristics. Obtain the location distribution of the first power distribution cabinet; Take the first target power distribution cabinet in the first power distribution cabinet, and obtain the first air port and the second air port of the first target power distribution cabinet, wherein the first air port and the second air port are located in different positions; Based on the location distribution, the air inlet is determined from the first air inlet and the second air inlet; Adjust the ventilation scheme of the first target power distribution cabinet according to the corrosion characteristics and the air inlet; The process of acquiring corrosion characteristics of each distribution cabinet in the distribution cabinet cluster includes: acquiring the second distribution cabinet in the distribution cabinet cluster; acquiring component images within the second distribution cabinet; acquiring the current component state and component position distribution of the target component from the component images; calculating the similarity between the current component state and the standard component state to obtain the individual component corrosion level; obtaining spatial corrosion characteristics based on the individual component corrosion level and the component position distribution; acquiring environmental gas data of the second distribution cabinet; extracting the concentration curve of the target gas from the environmental gas data, the concentration curve representing the change of the target gas concentration over time; obtaining temporal corrosion characteristics based on the concentration curve; and integrating the spatial corrosion characteristics and the temporal corrosion characteristics to obtain the corrosion characteristics of the second distribution cabinet. The step of adjusting the ventilation scheme of the first target power distribution cabinet according to the corrosion characteristics and the air inlet includes: generating the spatial corrosion characteristics and the temporal corrosion characteristics of the first target power distribution cabinet according to the corrosion characteristics; extracting adjacent elements according to the spatial corrosion characteristics and the position of the air inlet, wherein the distance from the adjacent elements to the air inlet is less than a preset distance threshold; setting the air intake direction of the first target power distribution cabinet according to the relative position of the adjacent elements and the air inlet; setting the air intake rate according to the temporal corrosion characteristics; and forming the ventilation scheme according to the air intake direction and the air intake rate.

2. The power distribution cabinet operation and maintenance method in a wet environment according to claim 1, characterized in that, The process of obtaining spatial corrosion characteristics based on the individual corrosion level of the component and the component's location distribution includes: Generate a two-dimensional plan view of the second power distribution cabinet; Based on the location distribution of the components, the target components are marked on the two-dimensional plan view; Based on the position of the target element in the two-dimensional plan view, the corrosion level of the individual element is marked in the two-dimensional plan view; Based on the corrosion level of the individual component, a contour map is generated within the two-dimensional plan view; The spatial corrosion characteristics are obtained based on the contour map.

3. The power distribution cabinet operation and maintenance method in a wet environment according to claim 2, characterized in that, The process of obtaining time-dependent corrosion characteristics based on the concentration curve includes: Based on the concentration curve, a first time period and a second time period are obtained, wherein the concentration in the first time period is greater than the preset concentration, and the concentration in the second time period is less than the preset concentration; Based on the first time period, a first concentration curve is extracted from the concentration curve; Integrating the first concentration curve yields the first-time corrosion characteristics. The corrosion characteristics of the second time period are obtained by multiplying the total duration of the second time period by a preset coefficient. The time corrosion feature is obtained by integrating the first time corrosion feature and the second time corrosion feature.

4. The power distribution cabinet operation and maintenance method in a wet environment according to claim 1, characterized in that, Setting the air intake direction of the first target distribution cabinet according to the relative position of the adjacent element and the air inlet includes: Clustering operations are performed based on the positions of the adjacent elements to obtain several clusters; Determine whether the cluster covers the candidate air intake direction of the air intake port; If so, then obtain the corrosion level of each adjacent element in the cluster and the adjacency distance of the adjacent element to the air inlet. The corrosion score of the cluster is obtained based on the corrosion level and the adjacency distance; The minimum value in the corrosion score is taken as the candidate air intake direction to obtain the air intake direction; If not, the intake direction is selected from the candidate intake directions, where no cluster has been formed in the intake direction.

5. The power distribution cabinet operation and maintenance method in a wet environment according to claim 1, characterized in that, The step of setting the intake rate based on the time-related corrosion characteristics includes: Get the current time; The target gas concentration is obtained based on the time-dependent corrosion characteristics and the current time. Based on the target gas concentration, candidate intake rates are retrieved from a preset rate mapping table, which is used to store the mapping relationship between the target gas concentration and the intake rate. Determine whether the candidate intake rate is greater than a preset intake rate threshold; If so, then the candidate intake rate is set to the intake rate; If not, then the intake rate threshold is set to the intake rate.

6. A power distribution cabinet operation and maintenance system in a wet environment, characterized in that, The system is used to perform the operation and maintenance method for power distribution cabinets in a humid environment as described in any one of claims 1 to 5, including: The acquisition module is used to acquire corrosion characteristics, the first gas port, and the second gas port; A memory for storing the program for the operation and maintenance method of the power distribution cabinet in a humid environment; The processor and the program in the memory can be loaded and executed by the processor to implement the operation and maintenance method of the power distribution cabinet in the humid environment.

7. A smart terminal, characterized by It includes a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and executed as described in any one of claims 1 to 5.

8. A computer-readable storage medium, characterized in that, The computer program is stored that can be loaded by a processor and execute the method as described in any one of claims 1 to 5.

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