CN111722642A - Inspection method and inspection device for photovoltaic power station and storage medium - Google Patents
Inspection method and inspection device for photovoltaic power station and storage medium Download PDFInfo
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
- G05D1/10—Simultaneous control of position or course in three dimensions
- G05D1/101—Simultaneous control of position or course in three dimensions specially adapted for aircraft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
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- B64C39/00—Aircraft not otherwise provided for
- B64C39/02—Aircraft not otherwise provided for characterised by special use
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D47/00—Equipment not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
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- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
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- G01J2005/0077—Imaging
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The application discloses method, device and storage medium are patrolled and examined to photovoltaic power plant, wherein, the method of patrolling and examining to photovoltaic power plant includes: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image. By the mode, inspection accuracy and efficiency of the photovoltaic power station can be improved, and maintenance cost of the photovoltaic power station is reduced.
Description
Technical Field
The application relates to the technical field of photovoltaic power station inspection, in particular to a photovoltaic power station inspection method, an inspection device and a storage medium.
Background
Due to the particularity of the photovoltaic power generation industry, photovoltaic power stations are often remote in location, numerous in equipment and wide in distribution range and area. Once equipment failure occurs, direct property loss and potential safety hazard are caused. How to effectively detect the quality function of the solar power stations with larger and larger scales is a difficult problem which troubles the solar photovoltaic engineers all over the world.
The existing manpower inspection method has the problems of low efficiency, high error rate, long inspection time and the like. The use of Radio Controlled (RC) Unmanned Aerial Vehicles (UAVs) for civil and commercial use has been steadily increasing over the past. The unmanned aerial vehicle is applied to the photovoltaic power station and has the advantages of high maneuverability, labor cost saving, inspection frequency improvement and the like in the inspection process.
Disclosure of Invention
In order to solve the problems, the application provides a photovoltaic power station inspection method, an inspection device and a storage medium, which can improve inspection accuracy and efficiency of the photovoltaic power station and are beneficial to reducing maintenance cost of the photovoltaic power station.
The technical scheme adopted by the application is as follows: the inspection method of the photovoltaic power station comprises the following steps: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image.
Wherein, according to the coordinate information planning route of patrolling and examining of a plurality of position points to confirm a plurality of acquisition points in the route of patrolling and examining, include: determining a routing inspection area according to the coordinate information of the plurality of position points; planning a routing inspection path in an inspection area; and determining a plurality of acquisition points in the routing inspection path.
Wherein, according to the coordinate information of a plurality of position points, confirm to patrol and examine the region, include: determining a rectangular inspection area according to the coordinate information of the four position points; planning a routing inspection path in an inspection area, comprising: and planning a circuitous inspection path in the rectangular inspection area so that the image acquisition range on the inspection path covers all photovoltaic power stations.
Wherein, patrol and examine according to patrolling and examining the route to carry out image acquisition at every acquisition point, include: and sending the routing inspection path to the unmanned aerial vehicle so that the unmanned aerial vehicle can perform routing inspection according to the routing inspection path and acquire images at each acquisition point.
The unmanned aerial vehicle is provided with an infrared sensor for collecting infrared images, and the hot spots of the infrared images are used for indicating the temperature abnormality of the photovoltaic module.
The method comprises the following steps of establishing a flight area point diagram by utilizing coordinate information corresponding to acquired images, and detecting the condition of the photovoltaic power station by combining the acquired images, wherein the method comprises the following steps: establishing a flight area point diagram by utilizing coordinate information corresponding to the acquired image; the flight area point map is combined with the plant layout map to detect the condition of the photovoltaic plant.
The method for establishing the flight area point diagram by utilizing the coordinate information corresponding to the acquired image comprises the following steps: acquiring picture files acquired corresponding to each acquisition point, wherein each picture file comprises corresponding coordinate information; and establishing a flight area point diagram based on the coordinate information corresponding to the picture file.
Wherein the coordinate information is GPS coordinate information; establishing a flight area point diagram based on the coordinate information corresponding to the picture file, wherein the method comprises the following steps: determining a minimum longitude value and a minimum latitude value in the coordinate information; establishing a rectangular coordinate system by taking the minimum longitude value and the minimum latitude value as an origin; and marking in the rectangular coordinate system according to the coordinate information corresponding to the picture file to obtain a flight area point diagram.
Another technical scheme adopted by the application is as follows: the inspection device for the photovoltaic power station comprises a processor and a memory connected with the processor, wherein the memory is stored with program data, and the processor is used for executing the program data to realize the method.
Another technical scheme adopted by the application is as follows: there is provided a computer readable storage medium having stored therein program data for implementing the method as described above when executed by a processor.
The application provides a photovoltaic power plant's method of patrolling and examining includes: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station, and the position point detection obtaining mode can be obtained by field detection or map obtaining or other modes; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image. In this way, through detecting the positional information who acquires, on the one hand can accurate definite photovoltaic power plant patrol and examine the scope, it will be more accurate to have avoided carrying out the picture concatenation again through taking photo by plane multiframe image among the prior art, and on the other hand is through simple and easy flight area dot pattern, combines the reaction abnormal coordinates that the infrared image of gathering can be clear to the staff overhauls rapidly, has improved the stability and the life-span of equipment, has reduced cost of maintenance.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts. Wherein:
fig. 1 is a schematic flow chart of an embodiment of a method for routing inspection of a photovoltaic power station provided by the present application;
FIG. 2 is a schematic diagram of an inspection area provided by an embodiment of the present application;
FIG. 3 is a plot of a flight area point provided by an embodiment of the present application;
FIG. 4 is a schematic diagram of coordinate transformation of the point diagram of the flight area of FIG. 3;
FIG. 5 is a schematic flow chart diagram illustrating another embodiment of a method for routing inspection of a photovoltaic power plant provided herein;
FIG. 6 is a photovoltaic power plant layout provided by an embodiment of the present application;
FIG. 7 is an infrared image provided by an embodiment of the present application;
FIG. 8 is a schematic section view of a plant layout provided by an embodiment of the present application;
FIG. 9 is a schematic structural diagram of an embodiment of an inspection device for a photovoltaic power station provided by the present application;
FIG. 10 is a schematic structural diagram of an embodiment of a computer-readable storage medium provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some of the structures related to the present application are shown in the drawings, not all of the structures. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first", "second", etc. in this application are used to distinguish between different objects and not to describe a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1, fig. 1 is a schematic flow chart of an embodiment of a method for routing inspection of a photovoltaic power station, the method including:
step 11: and acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station.
Alternatively, the on-site acquisition may be performed by a worker using specialized equipment. In other embodiments, the map may be obtained by acquisition or other means.
The quantity of the collected coordinate information can be determined according to the shape of the coverage area of the photovoltaic power station, for example, the coverage area of the photovoltaic power station is rectangular, the coordinate information can be collected at four corners of the rectangular area once, so that the rectangular inspection area can be established, for example, the coverage area of the photovoltaic power station is trapezoidal, and the coordinate information can be collected at four corners of the trapezoidal area once, so that the trapezoidal inspection area can be established. In addition, it can be understood that no matter what shape the coverage area of the photovoltaic power station is, the rectangular inspection area can be uniformly determined, and the coverage area of the rectangular inspection area needs to contain the coverage area of the photovoltaic power station.
Optionally, the coordinate information in step 11 may be GPS coordinates, and specifically may include longitude and latitude. The staff can acquire the GPS coordinates through a special GPS device, and can also perform positioning through some auxiliary devices with a GPS positioning function, such as a smart phone, a smart watch, a tablet computer, and the like.
Step 12: and planning an inspection path according to the coordinate information of the plurality of position points, and determining a plurality of acquisition points in the inspection path.
Optionally, in an embodiment, step 12 may specifically include:
step 121: and determining the routing inspection area according to the coordinate information of the plurality of position points.
Step 122: and planning a routing inspection path in the routing inspection area.
As shown in fig. 2, fig. 2 is a schematic diagram of an inspection area according to an embodiment of the present disclosure. Wherein, G represents a photovoltaic module, A, B, C, D represents that a plurality of position points are obtained in the step 11, Z represents an inspection area, L represents an inspection path, and S represents an acquisition point in the inspection path.
Optionally, in an embodiment, the routing inspection path L may be correspondingly set according to the shape of the routing inspection area Z. For example, if the patrol area Z is a rectangle, the detour path may be set from one side (for example, side AB) of the rectangle. The distance between two adjacent parallel circuitous paths can be set according to experience or the image acquisition range of the image sensor, so that the image acquisition device can acquire images of all photovoltaic modules as much as possible.
Alternatively, in another embodiment, the inspection path L may be set according to the setting position of the photovoltaic module. For example, the photovoltaic modules are arranged at intervals of 1 meter, and the distance between two adjacent parallel circuitous paths can also be set to be 1 meter. It is understood that the arrangement of the collection points may be regular or irregular, for example, there may be no area where the photovoltaic modules are distributed, there may be few or no collection points, there may be dense areas where the photovoltaic modules are arranged, and there may be more collection points.
Step 123: and determining a plurality of acquisition points in the routing inspection path.
Optionally, the setting of the acquisition point may be set according to an image acquisition range of the image sensor, so that the image acquirer can acquire images of all the photovoltaic modules as much as possible.
Step 13: and carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point.
Optionally, the routing inspection path is sent to the unmanned aerial vehicle, so that the unmanned aerial vehicle can perform routing inspection according to the routing inspection path and perform image acquisition at each acquisition point. Wherein, be provided with infrared sensor and positioner on this unmanned vehicles. It can be understood that the inspection path contains coordinate information of each acquisition point, the unmanned aerial vehicle flies according to the coordinate information, and an infrared image is acquired by using an infrared sensor at each acquisition point. For example, a certain frame of infrared image has a hot spot (a spot with a color different from that of other positions), and it can be determined that the photovoltaic module corresponding to the hot spot has a temperature anomaly. Wherein the infrared sensor may be an infrared camera or other infrared sensor.
In an embodiment, each frame of infrared image acquired by the unmanned aerial vehicle is stored in a form of a picture file, for example, a format such as jpg, png, and the like, without limitation, and the detailed information of each picture file includes location information corresponding to the frame of image, such as a specific longitude and latitude.
Wherein, unmanned vehicles can send these pictures to inspection device through wired or wireless data transmission mode after patrolling and examining the completion to inspection device carries out subsequent processing.
Step 14: and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image.
Optionally, in an embodiment, step 14 may specifically include:
step 141: and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image.
And establishing a flight area point diagram based on the coordinate information corresponding to the picture file by using the picture file acquired corresponding to each acquisition point acquired in the step 13.
The method specifically comprises the following steps: determining a minimum longitude value and a minimum latitude value in the coordinate information; establishing a rectangular coordinate system by taking the minimum longitude value and the minimum latitude value as an origin; and marking in the rectangular coordinate system according to the coordinate information corresponding to the picture file to obtain a flight area point diagram.
In the multiple pictures obtained in the above steps, the GPS coordinate of the ith picture is taken as GPS (longitude, latitude)iThen, the GPS coordinates of N pictures of the inspection power station can be expressed as:
GPS[longitude，latitude]i＝[GPS(longitude，latitude)1，…，GPS(longitude，latitude)N]
according to the above formula, GPS (longitude, latitude)iThe GPS points in (1) are used to draw a flight area point diagram of the inspection area, as shown in fig. 3, fig. 3 is the flight area point diagram provided in an embodiment of the present application, in which the abscissa represents east longitude and the ordinate represents north latitude.
Further, as shown in fig. 4, fig. 4 is a schematic diagram of coordinate transformation of the flight area point diagram in fig. 3, and for the minimum Longitude of Longitude and latitude of the above all pictures GPSmin、latitudeminAnd maximum longituudemax、latitudemax. From [ longituude ]min，latitudemin]The lower left minimum point forming the inspection area is LB (x)gps，ygps) From [ longituude ]min，latitudemin]The upper right maximum point constituting the patrol area is RT (x)gps，ygps). Established with LB (x)gps，ygps) Local coordinate system O of inspection area as original pointgps0Local coordinate system O of photovoltaic power station to be inspectedgps0Put into the earth coordinate system Ogps(0, 0).
Step 142: the flight area point map is combined with the plant layout map to detect the condition of the photovoltaic plant.
Optionally, in an embodiment, a preset image processing algorithm may be used to identify each frame of infrared image to determine whether hot spots occur in the infrared image, and then find a corresponding coordinate point in the flight area point diagram to perform special marking for reminding. For example, the points corresponding to hot spots are subjected to flashing and highlighting display, so that workers can find the points in time and overhaul the corresponding photovoltaic modules according to the coordinate information of the points.
Alternatively, in another embodiment, the flight area point map may be combined with a power station layout map, wherein the power station layout map is a map of the layout of photovoltaic components in a photovoltaic power station, wherein the relative positional relationship between the photovoltaic components may be represented. Therefore, the flight area point diagram and the power station layout diagram can be combined, and the power station layout diagram corresponding to each point in the flight area point diagram is marked, so that which photovoltaic module has a problem can be easily determined. This section will be described in detail in the following embodiments, which are not described herein.
Different from the prior art, the inspection method for the photovoltaic power station provided by the embodiment includes: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station, and the position point detection obtaining mode can be obtained by field detection or map obtaining or other modes; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image. In this way, through detecting the positional information who acquires, on the one hand can accurate definite photovoltaic power plant patrol and examine the scope, it will be more accurate to have avoided carrying out the picture concatenation again through taking photo by plane multiframe image among the prior art, and on the other hand is through simple and easy flight area dot pattern, combines the reaction abnormal coordinates that the infrared image of gathering can be clear to the staff overhauls rapidly, has improved the stability and the life-span of equipment, has reduced cost of maintenance.
Referring to fig. 5, fig. 5 is a schematic flow chart of another embodiment of the inspection method for the photovoltaic power station, where the method includes:
step 51: the method comprises the steps of obtaining a photovoltaic power station layout diagram and a flight area point diagram, wherein the flight area point diagram comprises a plurality of coordinate points, and the coordinate points are determined by a plurality of collected images and corresponding coordinate information.
The power station layout diagram is a diagram about the layout of photovoltaic components in the photovoltaic power station and is obtained by scaling according to the real position relation among the photovoltaic components in the photovoltaic power station. Optionally, the flight area point diagram may be obtained by the method of the above embodiment, and is not described here again.
Step 52: and converting the plurality of coordinate points to a photovoltaic power station layout.
Optionally, in an embodiment, step 52 may specifically include:
step 521: and determining a routing inspection area on a photovoltaic power station layout.
As shown in fig. 6, fig. 6 is a layout diagram of a photovoltaic power station according to an embodiment of the present application. In this embodiment, marking points (represented by solid squares) are marked on a photovoltaic power station layout according to the range of a photovoltaic power station inspection area, and specifically include: upper left point LT (x)pix，ypix) LB (x) lower left pointpix，ypix) Right lower point RB (x)pix，ypix) Upper right point RT (x)pix，ypix)。
Step 522: and calculating the conversion relation between the pixel value of the photovoltaic power station layout diagram and the coordinate value of the flight area point diagram.
Determining the width and height of a pixel of a routing inspection area and determining the width and height of a coordinate of a point diagram of a flight area; and calculating the conversion relation between the pixel unit and the coordinate unit according to the pixel width and the coordinate width and the height.
In particular, through the upper left point LT (x) of the photovoltaic plant layoutpix，ypix) LB (x) lower left pointpix，ypix) Right lower point RB (x)pix，ypix) Upper right point RT (x)pix，ypix) Calculating to obtain the width and height ROI (w) of the inspection areapix，hpix) (image unit: a pixel).
The pixel width may be specifically calculated with reference to the following formula:
ROI(wpix)1＝RT(xpix)-LT(xpix) Or is or
ROI(wpix)2＝RB(xpix)-LB(xpix) Alternatively, an average of the two algorithms may be used, as follows:
ROI(wpix)＝[RT(xpix)-LT(xpix)+RB(xpix)-LB(xpix)]/2。
also, pixel height can be calculated using the following formula:
ROI(hpix)1＝LB(ypix)-LT(ypix) Or is or
ROI(hpix)2＝LB(ypix)-RT(ypix) Alternatively, an average of the two algorithms may be used, as follows:
ROI(hpix)＝[LB(ypix)-LT(ypix)+LB(ypix)-RT(ypix)]/2。
further, by GPS (w)gps，hgps) And ROI (w)pix，hpix) And performing corresponding operation to obtain the Unit pixel and the GPS conversion Unit (x, y).
Specifically, Unit (x, y) ═ ROI (w)gps，hgps)/ROI(wpix，hpix)。
Of course, since the width-to-height ratios of the photovoltaic plant layout map and the flight area point map are generally consistent, but may be different due to measurement errors, the conversion units of width and height may also be calculated separately, for example:
Unit(x)＝ROI(wgps)/ROI(wpix) Or is or
Unit(y)＝ROI(hgps)/ROI(hpix)。
Step 523: and converting the plurality of coordinate points to the routing inspection range of the layout diagram of the photovoltaic power station according to the conversion relation.
Alternatively, in the present embodiment, as shown in fig. 6, an origin is determined in the photovoltaic power plant layout, and a two-dimensional coordinate system is established according to the origin of the photovoltaic power plant layout.
Specifically, calculating the coordinate distance between a coordinate point in a flight area point diagram and an origin; converting the coordinate distance into a pixel distance according to the conversion relation; and determining corresponding pixel points in the photovoltaic power station layout according to the pixel distance.
It can be understood that, in conjunction with fig. 4, the graph in fig. 4 and the photovoltaic power plant layout can be scaled according to actual conditions, so that the two are always in corresponding proportion. For example, photovoltaic plant layouts are scaled to the standard of infrared images.
Therefore, with continued reference to FIG. 6, the lower left point O of the photovoltaic power plant layout Image can be determinedimg(xpix，ypix) With the origin LB (x) of the coordinate systempix，ypix) The subtracted difference Diff (x)pix，ypix) By Diff (x)pix，ypix) Corresponding operation is carried out with the Unit (x, y) to obtain a coordinate O away from the lower left point of the photovoltaic power station layoutimg(xpix，ypix) Distance Diff (x)gps，ygps)，Diff(xgps，ygps) And LB (x)gps，ygps) Adding to obtain a coordinate O of a lower left point of a photovoltaic power station layoutimg(xgps，ygps)。
Then, according to GPS point GPS of the ith picture]iAnd Oimg(xgps，ygps) Subtracting to obtain a difference Value (x)gps，ygps)i，Value(xgps，ygps)iAnd the Unit (x, y) calculates the LB of the center of the ith infrared picture away from the lower left point of the photovoltaic power station layout Imageimg(xpix，ypix) Distance value Dist (x) ofpix，ypix)i(ii) a Reuse Dist (x)pix，ypix)iAnd Oimg(xpix，ypix) Corresponding conversion is carried out to obtain the position coordinate BlackPt (x) of the center of the ith infrared picture corresponding to the photovoltaic power station layout Imagepix，ypix)i。
Step 53: and determining abnormal points according to the plurality of images, and marking the photovoltaic assemblies corresponding to the abnormal points on a photovoltaic power station layout.
It is to be understood that the image may be an infrared image, and the infrared image may indicate a temperature anomaly of the photovoltaic module, for example, a certain frame of infrared image has a hot spot (a spot with a color different from other positions), and it may be determined that a temperature anomaly of the photovoltaic module corresponding to the hot spot has occurred.
Optionally, in an embodiment, step 53 may specifically include:
step 531: and determining a corresponding view field area on the photovoltaic power station layout according to the view field range of the infrared image.
In one embodiment, coordinates of a marker point on an edge of the field of view region may be determined, for example, the field of view region is rectangular, a vertex in the rectangle may be used as the marker point, and then, according to the position of the hot spot in the infrared image and the coordinates of the marker point, the corresponding coordinates of the hot spot in the field of view region are determined.
Specifically, referring to fig. 7 and 8, fig. 7 is an infrared image provided in an embodiment of the present application, and fig. 8 is a section diagram of a power station layout provided in an embodiment of the present application. The method specifically comprises the following steps:
firstly, obtaining a position coordinate BlackPt (x) of the center of the ith infrared picture corresponding to the Image of the photovoltaic power station layoutpix，ypix)iThen through BlackPt (x)pix，ypix)iCalculating the ith infrared picture corresponding to a mark point in the photovoltaic power station layout Image, such as the upper left point LTPoint (x, y)i。
The dotted frame Rect (x, y) may be determined according to the size of the infrared picture. For example, the width and height of the infrared image is determined by BlackPt (x)pix，ypix)iFurther, the coordinates of any one of the four vertices in the dashed frame can be calculated in conjunction with the calculation of the dashed frame Rect (x, y).
Then, calling the trained AI (artificial intelligence) model,detecting a boundary area (bounding boxes) of a hot spot of an unmanned plane collected picture, and positioning an ith infrared picture to a hotspot (x) of the hot spot after image processingpix，ypix)i. The AI model can be a neural network model obtained by training in a supervised or unsupervised mode, and the image is subjected to feature extraction to identify the infrared image to obtain a boundary region of the hot spot, wherein the central point HotPot (x) of the hot spotpix，ypix)iMay be the geometric center of the boundary region of the hot spot.
Step 532: and determining the corresponding coordinates of the hot spot in the visual field area according to the position of the hot spot in the infrared image.
Further, according to the ith infrared picture LTPoint (x)pix，ypix)iHot spot (x)pix，ypix)iAnd the coordinates H (x) of the hot spots on the photovoltaic power station layout can be reversely calculated by calculationpix，ypix)iSpecifically, hotbot (x) may be calculated firstpix，ypix) And obtaining the distance between the hot spot and the LTPoint (x) on the photovoltaic power station layout diagram according to the distance between the upper left point in the infrared image and the proportion value S of the infrared image and the dotted line frame body Rect (x, y), wherein the distance is multiplied or divided by Spix，ypix)iDistance Dis (x)h，yh)iLTPoint (x)pix，ypix)iAnd Dis (x)h，yh)iAdding up, then the coordinate H (x) of the hot spot on the layout of the photovoltaic power station can be calculatedpix，ypix)i。
Step 533: and marking the photovoltaic module corresponding to the hot spot according to the coordinate of the hot spot.
Alternatively, since the hot spot is marked in the power station layout, the photovoltaic module with the smallest distance gradient can be determined as the photovoltaic module where the hot spot occurs by calculating the distance gradient between the hot spot and a plurality of nearby photovoltaic modules.
The hot spots comprise common hot spots and serious hot spots, so that the corresponding photovoltaic module can be marked by adopting corresponding colors according to the types of the hot spots. For example, ordinary hot spots may be orange, and severe hot spots may be red.
In addition, the photovoltaic modules are connected in series to form a photovoltaic module string, and the photovoltaic module string specifically comprises the following types: the general hot spots, the serious hot spots, the general hot spot group strings, the serious hot spots and the non-hot spot group strings can be marked by one color for each type, and then the quantity of each type can be counted to form and present the data table.
Different from the prior art, the inspection method for the photovoltaic power station provided by the embodiment includes: acquiring a photovoltaic power station layout diagram and a flight area point diagram, wherein the flight area point diagram comprises a plurality of coordinate points, and the plurality of coordinate points are determined by a plurality of acquired images and corresponding coordinate information; converting the plurality of coordinate points to a photovoltaic power station layout diagram; and determining abnormal points according to the plurality of images, and marking the photovoltaic assemblies corresponding to the abnormal points on a photovoltaic power station layout. In this way, can combine photovoltaic power plant layout and flight area dot map, correspond the mark at the photovoltaic power plant layout with the infrared image of gathering, consequently, not only can patrol and examine photovoltaic module from the coordinate, can also follow the photovoltaic power plant layout and confirm a specific certain photovoltaic module, make that the staff can be convenient learn the fault location, maintain trouble photovoltaic module rapidly, reduced the maintenance cost.
Referring to fig. 9, fig. 9 is a schematic structural diagram of an embodiment of the inspection device for a photovoltaic power station, where the inspection device 90 includes a processor 91 and a memory 92 connected to the processor 91, and program data is stored in the memory 92.
Optionally, in an embodiment, the processor 91 is configured to execute the sequence data to implement the following method: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image.
Optionally, in another embodiment, the processor 91 is configured to execute the sequence data to implement the following method: acquiring a photovoltaic power station layout diagram and a flight area point diagram, wherein the flight area point diagram comprises a plurality of coordinate points, and the plurality of coordinate points are determined by a plurality of acquired images and corresponding coordinate information; converting the plurality of coordinate points to a photovoltaic power station layout diagram; and determining abnormal points according to the plurality of images, and marking the photovoltaic assemblies corresponding to the abnormal points on a photovoltaic power station layout.
In addition, in an embodiment, the inspection device 90 may further include a display screen for displaying images such as an infrared image, a coordinate image, a photovoltaic power station layout diagram, and the like, or displaying a statistical result of a faulty photovoltaic module. Further, the inspection device 90 may further include an alarm component, such as a flash, a buzzer, a speaker, etc., for reminding when a fault is detected.
In addition, in one embodiment, the inspection device 90 may further include a communication module, such as 4G, 5G, WIFI, etc., for establishing a wireless communication connection with the UAV for remote control and data interaction of the UAV.
Referring to fig. 10, fig. 10 is a schematic structural diagram of an embodiment of a computer-readable storage medium 100 provided in the present application, in which program data 101 is stored.
Optionally, in an embodiment, the program data 101, when executed by the processor, is configured to implement the following method: acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station; planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path; carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point; and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image.
Optionally, in another embodiment, the program data 101, when executed by a processor, is configured to implement the method of: acquiring a photovoltaic power station layout diagram and a flight area point diagram, wherein the flight area point diagram comprises a plurality of coordinate points, and the plurality of coordinate points are determined by a plurality of acquired images and corresponding coordinate information; converting the plurality of coordinate points to a photovoltaic power station layout diagram; and determining abnormal points according to the plurality of images, and marking the photovoltaic assemblies corresponding to the abnormal points on a photovoltaic power station layout.
In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other manners. For example, the above-described device embodiments are merely illustrative, and for example, the division of the modules or units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made according to the content of the present specification and the accompanying drawings, or which are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A method for routing inspection of a photovoltaic power station is characterized by comprising the following steps:
acquiring coordinate information of a plurality of position points, wherein the coordinate information of the plurality of position points is obtained by detecting the position points corresponding to the photovoltaic power station;
planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path;
carrying out inspection according to the inspection path, and carrying out image acquisition at each acquisition point;
and establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image, and detecting the condition of the photovoltaic power station by combining the acquired image.
2. The method of claim 1,
planning an inspection path according to the coordinate information of the position points, and determining a plurality of acquisition points in the inspection path, wherein the method comprises the following steps:
determining a routing inspection area according to the coordinate information of the plurality of position points;
planning a routing inspection path in the routing inspection area;
and determining a plurality of acquisition points in the routing inspection path.
3. The method of claim 2,
according to the coordinate information of the plurality of position points, determining a routing inspection area, comprising:
determining a rectangular inspection area according to the coordinate information of the four position points;
the planning of patrolling and examining the route in patrolling and examining the region includes:
and planning a circuitous inspection path in the rectangular inspection area so that the image acquisition range on the inspection path covers all photovoltaic power stations.
4. The method of claim 1,
the patrol according to the patrol route and the image acquisition at each acquisition point comprises the following steps:
and sending the routing inspection path to an unmanned aerial vehicle so that the unmanned aerial vehicle can perform routing inspection according to the routing inspection path and perform image acquisition at each acquisition point.
5. The method of claim 4,
the unmanned aerial vehicle is provided with an infrared sensor and used for collecting infrared images, and the hot spots of the infrared images are used for indicating that the temperature of the photovoltaic module is abnormal.
6. The method of claim 1,
the method for establishing a flight area point diagram by utilizing the coordinate information corresponding to the acquired image and detecting the condition of the photovoltaic power station by combining the acquired image comprises the following steps:
establishing a flight area point diagram by utilizing coordinate information corresponding to the acquired image;
and combining the flight area point diagram with the power station layout diagram to detect the condition of the photovoltaic power station.
7. The method of claim 6,
the establishing of the flight area point diagram by utilizing the coordinate information corresponding to the acquired image comprises the following steps:
acquiring picture files acquired corresponding to each acquisition point, wherein each picture file comprises corresponding coordinate information;
and establishing a flight area point diagram based on the coordinate information corresponding to the picture file.
8. The method of claim 7,
the coordinate information is GPS coordinate information;
establishing a flight area point diagram based on the coordinate information corresponding to the picture file, wherein the method comprises the following steps:
determining a minimum longitude value and a minimum latitude value in the coordinate information;
establishing a rectangular coordinate system by taking the minimum longitude value and the minimum latitude value as an origin;
and marking in the rectangular coordinate system according to the coordinate information corresponding to the picture file to obtain the flight area point diagram.
9. Inspection device for photovoltaic power stations, characterized in that it comprises a processor and a memory connected to the processor, in which memory program data are stored, which processor is adapted to execute the program data to implement the method according to any one of claims 1 to 8.
10. A computer-readable storage medium, in which program data are stored which, when being executed by a processor, are adapted to carry out the method according to any one of claims 1-8.
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