KR101825725B1 - Method and device for diagnosing deterioration of solar cell module - Google Patents

Abstract

Disclosed are a method and a device for diagnosing the deterioration of a solar cell module. The method for diagnosing the deterioration of a solar cell module according to an embodiment of the present invention includes a step of obtaining a photographed image of a photovoltaic power system from a thermal camera; a step of identifying an anomaly region that is determined to be degraded for the solar power system, from the photographed image; and a step of informing a manager module of information on the solar cell module in a solar power system corresponding to the abnormal region through wireless communication using a ZigBee modem. It is possible to easily inform a remote administrator of the deterioration.

Description

TECHNICAL FIELD [0001] The present invention relates to a deterioration diagnosis method for a photovoltaic cell module,

The present invention relates to a photovoltaic module for diagnosing deterioration of a photovoltaic module based on wireless communication using a Zigbee modem and for diagnosing deterioration of the photovoltaic module from a photographed image of a thermal imaging camera, And a deterioration diagnosis apparatus for the photovoltaic module.

Solar power generation system (solar power system) is an environmentally friendly infinite energy source, and the supply is expanding according to the government's diversification of energy source and decentralization policy.

The photovoltaic power generation system is composed of a plurality of photovoltaic cell modules (solar panel) that convert sunlight into electric energy, and a plurality of photovoltaic cell modules are connected in series or in parallel to obtain necessary power.

On the other hand, the present solar power generation system is installed on a building roof or an unoccupied land which is hardly accessed by most people, and is operated as an unmanned system. Therefore, there is a problem that it is difficult to efficiently manage a solar cell module after it is installed.

The effective maintenance, management and control of the photovoltaic module in the photovoltaic power generation system can greatly affect the efficiency of the power generation and the lifetime of the photovoltaic module, so that the state of the malfunction, deterioration, A function capable of diagnosing at a remote location is required.

In particular, since the photovoltaic power generation system is realized by a solar string connected in series with a plurality of solar battery modules or a solar array connected in parallel, the installation area is comparatively wide, and therefore, There is a demand for a technology that can quickly and easily determine whether the solar cell module deteriorates in real time.

Embodiments of the present invention provide a method and system for wireless communication that uses at least one of a position and an angle of a thermal imaging camera to obtain a captured image based on wireless communication using a Zigbee modem, To identify an abnormal region in which the photovoltaic cell module is distributed, and to remotely inform the manager of the deterioration of the photovoltaic cell module.

An embodiment of the present invention aims at easily and quickly diagnosing the deterioration of a large number of photovoltaic modules installed in a large area using a thermal camera which can be controlled by Zigbee wireless communication to prevent loss of power generation of a solar power plant.

The embodiment of the present invention controls the position and angle of the camera dof of the thermal imaging camera through the servomotor which can be rotated up and down or right and left to photograph a large area of the solar power system, The location of the deteriorated photovoltaic module is detected by extracting a region of the deteriorated photovoltaic cell module, and a photographed image is transmitted to the supervisor module through wireless communication using a zigbee modem to visualize the deteriorated photovoltaic cell module position.

A method for diagnosing a deterioration of a photovoltaic module according to an embodiment of the present invention includes the steps of: obtaining a photographed image of a photovoltaic power system from a thermal imaging camera; determining, from the photographed image, Identifying an abnormal region to be determined, and informing the manager module via the wireless communication using the ZigBee modem of information on the solar cell module in the solar power system corresponding to the abnormal region .

Further, an apparatus for diagnosing a deterioration of a photovoltaic module according to an embodiment of the present invention includes an image obtaining unit for obtaining a photographed image of a photovoltaic power system from a thermal camera, And information on the photovoltaic module in the photovoltaic power system corresponding to the abnormal region is transmitted to the manager module through the wireless communication using the Zigbee modem And a deterioration notification section for notifying the deterioration notification section.

According to an embodiment of the present invention, a wireless communication using a ZigBee modem is used to control at least one of a position and an angle of a thermal imaging camera to acquire a shot image, and through image processing based on an image abnormal extraction algorithm, It is possible to identify an abnormal region in which the photovoltaic cell module deteriorated from the image is distributed, and notify the remote manager of the deterioration of the photovoltaic cell module easily.

In addition, according to an embodiment of the present invention, it is possible to reduce the cost for diagnosing the deterioration of the solar cell module in a solar power plant operating the solar power system.

In addition, according to one embodiment of the present invention, deterioration of a solar cell module can be easily diagnosed by being applied not only to a solar power plant, but also to various sites where a solar power system is utilized.

In addition, according to an embodiment of the present invention, it is possible to easily acquire an image of the entire area of a solar power system in which at least one solar battery module is distributed over a certain area through a thermal camera, in real time, The deterioration of each of the photovoltaic modules can be diagnosed early.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a configuration of a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention; FIG.
2 is a view showing a thermal imaging camera, a servo motor, and a solar power system interlocked with a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.
3 is a view illustrating an example of connecting a servo motor to a thermal imaging camera in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.
4 is a diagram for explaining a process of controlling a servo motor in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.
5 is a diagram for explaining a process of extracting an abnormal region from an image in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.
6 is a diagram illustrating an algorithm for extracting an image abnormality in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.
7 is a flowchart illustrating a procedure of a deterioration diagnosis method of a photovoltaic battery module according to an embodiment of the present invention.
8 is a flowchart illustrating a procedure of a deterioration diagnosis method for a solar cell module according to another embodiment of the present invention.

Hereinafter, an apparatus and method for updating an application program according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

The apparatus for diagnosing a deterioration of a photovoltaic cell module according to an embodiment of the present invention is a device for diagnosing a deterioration of a photovoltaic cell module based on wireless communication using a Zigbee modem and interworking with a thermal camera, a server motor, and a solar power system, The deterioration of the photovoltaic cell module can be easily diagnosed.

For example, the deterioration diagnosis apparatus can control the Doom controller in the thermal imaging camera to process the photographed photovoltaic power system according to an abnormal extraction algorithm to determine whether it is deteriorated, and notify the manager module of the deterioration.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a configuration of a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention; FIG.

1, an apparatus 100 for detecting deterioration of a photovoltaic module according to an embodiment of the present invention includes an image obtaining unit 110, a region identifying unit 120, and a deterioration notification unit 130 Can be configured. In addition, according to the embodiment, the deterioration diagnosis apparatus 100 of the photovoltaic module may be configured by adding a database 140 thereto.

The image acquisition unit 110 acquires a photographed image of the photovoltaic power system 170 from the thermal imaging camera 150.

That is, the image acquiring unit 110 controls the thermal imaging camera 150 and the servo motor 160 via wireless communication using a Zigbee modem to transmit the solar cell module 171 in the solar power system 170 It is possible to receive the photographed image.

Here, since a plurality of solar battery modules 171, such as a solar panel, for example, are connected in series or in parallel to each other in the form of a solar light string or a solar array, (171) having a certain area and being widely distributed.

Thus, in one embodiment for obtaining a photographed image of a photovoltaic cell module 171 that is widely distributed within the photovoltaic power system 170, the image acquisition unit 110 may include a photovoltaic The photographing coordinates are assigned to each of the photovoltaic modules 171 and the thermal imaging camera 150 is subjected to angle control or movement control so that n From the thermal imager 150 and obtains the captured image by connecting the n images based on the captured coordinates.

4, the image obtaining unit 110 sequentially receives the image pickup coordinates (X-axis, Y-axis) by the servo motor 160 according to the flowchart shown in FIG. 4 (i) It is possible to control the servo motor 160 to move.

That is, the image acquiring unit 110 sets 'Cam_Index' to increase from '0' to '8' by 1, sets the image coordinates obtained by dividing 'Cam_Index' by 3 and the remainder to X- (1, 2) ',' (1, 0) ',' (1, 0) ',' , 0) 'and (2, 2)' to the servo motor 160 in sequence.

The image obtaining unit 110 moves the servo motor 160 to a photographing point at which an image corresponding to each photographing coordinate can be taken, captures an image through the thermal camera 150, As shown in (ii) of FIG. 4, so that one captured image can be obtained.

In this manner, the image obtaining unit 110 may move the servo motor 160 to obtain images captured at n different shooting positions through the thermal imager 150. [

In another embodiment, the image obtaining unit 110 may repeatedly pick up n images while controlling the Doom controller in the infrared camera 150 at one shooting point to change the shooting angle. The thermal imaging camera 150 can take an image of the solar cell module 171 having a certain area and distributed by the angle change according to the doom control. The thermal imaging camera 150 may be implemented, for example, with a FLIR thermal imaging camera.

For example, the image acquiring unit 110 drives the servo motor 160 in at least one of the vertical direction and the horizontal direction through the input of the imaging coordinates, Can be repeated at the position where the photographing coordinates can be photographed and the image captured by the thermal imaging camera located at the photographing point is received via the wireless communication using the Zigbee modem.

Specifically, the image obtaining unit 110 controls the servo motor 160 to move the thermal imaging camera 150 to a desired photographing position, and adjusts the angle of the thermal imaging camera 150 at a predetermined interval (e.g., (E.g., " 10 degrees "), it is possible to capture an image of a predetermined number (e.g., " 9 ") for connecting to one captured image.

The image obtaining unit 110 may obtain the captured image by extending and connecting the n images, for example, in a panoramic manner, based on the photographing coordinates or the photographing angle.

In addition, the image obtaining unit 110 may connect at least two images out of the n images based on the same area, thereby linking the images.

The image acquiring unit 110 may store the n images and the shot images in the database 140. [

The area identification unit 120 identifies, from the photographed image, an anomaly region that is determined to be degraded with respect to the solar power system 170.

For example, the region identifying unit 120 extracts a solar light region corresponding to the solar cell module 171 using the color value of each pixel constituting the photographed image, and calculates a brightness value of each pixel constituting the solar light region It is possible to identify an abnormal region in which the photovoltaic module 171 is judged to have deteriorated according to the brightness of the light (the degree of brightness of the color).

The region identifying unit 120 may extract only the abnormal region from the sunlight region, store the abnormal region in a state of masking with a blue-based color, and store the captured image in the database 140.

For example, the region identifying unit 120 may identify, from the captured image, an area having a red color value (e.g., orange, red, or yellow) associated with the heat of the solar cell module 171, (An area corresponding to the photovoltaic module 171), and a candidate region in which a brightness value that does not satisfy the reference value is expressed among the abnormal candidate regions is defined as the abnormal region (Corresponding to the area 171).

The region identifying unit 120 calculates a weighted mean for each pixel using the brightness value of each pixel constituting the abnormal candidate region, and outputs the ideal candidate having a pixel having a weighted average of a predetermined value or more Area can be identified as the abnormal area. Here, the a weighted average means an average calculated by multiplying the numerical value of each term by a coefficient proportional to the importance when there are a plurality of numbers or quantities, and the region identification unit 120 determines the importance The above-mentioned weighted average can be calculated by multiplying the measured brightness value by a predetermined weight determined by the above-mentioned method.

For example, referring to FIG. 6, the region identifying unit 120 forms a mask (ii) by applying a brightness value (i) of each pixel constituting the abnormal candidate region to a weighted average formula, An output value of each pixel is generated according to the weighted average of the pixels, and an area including pixels having weighted averages greater than a predetermined value can be identified as an ideal area. Here, the line technique can be defined as weighted average of neighbors adjacent to each pixel of the input image. Particularly, in the region identification unit 120, a pixel of interest (for example, a pixel group in which an abnormality is expected) is masked by blurring or sharpening an image, detecting a boundary line or removing noise, By adopting the weighted average technique, it is possible to make high accuracy in the identification of the ideal region.

The deterioration notification unit 130 transmits information (serial number and position, etc.) regarding the photovoltaic module 171 in the solar photovoltaic system 170 corresponding to the abnormal region via wireless communication using the Zigbee modem, And notifies the manager module 180.

In addition, the deterioration notification unit 130 distinguishes the abnormal region from the photographed image and displays the abnormal region in the photographed image, and transmits the detected abnormal region to a manager module 180 such as a desktop PC of an administrator to detect degradation of the photovoltaic module 171 located in the abnormal region .

For example, the deterioration notification unit 130 distributes the distribution of the photovoltaic modules 171 deteriorated in the photovoltaic power system 170 through the transmission of the photographed image obtained by masking the abnormal region to the color of the blue series, You can notify the module.

The deterioration notification unit 130 performs masking processing on the abnormal region using a blue-based color that is easily distinguishable from the red-based color associated with the heat of the solar cell module 171, It is possible to easily distinguish the deteriorated photovoltaic module 171 in the ideal region from the photovoltaic module 171 in the steady state within the photographed image visualized in the normal state.

In another example, the deterioration notification unit 130 may be configured to detect the position of the photovoltaic module 171 in the image captured through the general camera or the position of the at least one photovoltaic cell module 170 constituting the photovoltaic power system 170 Recognizes the solar cell module 171 belonging to the abnormal region by referring to the layout chart for the solar cell module 171 and transmits information about the serial number and the position of the recognized solar cell module 171 to the manager module 180 ).

As described above, according to the embodiment of the present invention, it is possible to easily and quickly diagnose the deterioration of a large number of photovoltaic modules installed in a large area using a thermal camera that can be controlled by ZigBee wireless communication, It is possible to prevent power generation loss of the photovoltaic power generation plant.

2 is a view showing a thermal imaging camera, a servo motor, and a solar power system interlocked with a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.

2, the deterioration diagnosis apparatus 100 for a photovoltaic module according to an exemplary embodiment of the present invention may include a thermal imaging camera (not shown) based on wireless communication (Zigbee communication) using the Zigbee modems 210 and 220 150 and the server motor 160 and the solar power system 170 to easily diagnose deterioration of the plurality of solar cell modules 171 in the solar power system 170.

The thermal imaging camera 150 is a device for tracking and detecting heat and displaying it on a screen at a glance. The thermal imaging camera 150 may include a camera doe 151 and a doad controller 152.

The deterioration diagnosis apparatus 100 can control the angle of the camera set 151 through the Zigbee communication with the doad controller 152 to capture n images of the respective solar battery modules 171 installed in a large area have.

The deterioration diagnosis apparatus 100 processes n images captured through the thermal imaging camera 150 according to an abnormal extraction algorithm (see FIG. 6) to determine whether or not the solar cell module 171 has deteriorated, A result can be reported to the manager module via ZigBee communication.

The servo motor 160 may refer to a driving device for moving the connected thermal imaging camera 150 up or down or left or right depending on input photographing coordinates to enable photographing of a desired point.

For example, the servo motor 160 includes a controller 161, a motor 162 for up-and-down rotation, and a motor 163 for a left-right rotation. And can be connected to the thermal imaging camera 150 in a movable form.

The controller 161 controls the up-and-down rotation motor 162 and the left-right rotation motor 163 according to the imaging coordinates inputted from the deterioration diagnosis apparatus 100 via the Zigbee communication to move the thermal imaging camera 150 .

The up-and-down rotation motor 162 serves to rotate the servomotor 160 in the up-and-down direction and the left-to-right rotation motor 163 serves to rotate the servomotor 160 to the left and right. And may be connected to the controller 161 by an encoder.

Here, the solar power system 170 is a system for converting sunlight into electric energy to produce electric power, and may be constituted of a solar cell module 171, a controller 172, and a battery 173.

Specifically, the controller 172 can control the solar battery module 171 to accumulate the converted electric energy in the battery 173 when the sunlight is converted into electric energy.

The photovoltaic module 171 may be implemented by a plurality of solar panels, for example, and each photovoltaic module 171 may be connected in series in the form of a solar light string, or may be connected in parallel, such as a solar array, Can be installed.

The deterioration diagnosis apparatus 100 may determine whether there is an abnormality on the appearance of the controller 172 and the battery 173 together with deterioration of the solar cell module 171. [

3 is a view illustrating an example of connecting a servo motor to a thermal imaging camera in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.

Referring to FIG. 3, the thermal imaging camera and the servo motor may be connected to each other in such a manner that the thermal imaging camera and the servo motor can be moved up and down or left and right of the thermal imaging camera.

For example, the up-and-down rotation motor 162 in the servomotor is connected to the camera set 151 in the thermal imaging camera as shown in Fig. 3 (i), so that the thermal imaging camera can be moved up and down. Further, the motor 163 for turning the left and right rotations in the servo motor is connected to the camera set 151 as shown in Fig. 3 (ii), thereby realizing the lateral movement of the thermal imaging camera.

Accordingly, the controller in the servomotor controls at least one of the up-and-down rotation motor 162 and the left-right rotation motor 163 according to the imaging coordinates input through the Zigbee communication, It is possible to easily pick up n images of the solar cell modules installed in a large area.

4 is a diagram for explaining a process of controlling a servo motor in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.

Referring to FIG. 4, the deterioration diagnosis apparatus for a photovoltaic module according to an embodiment of the present invention includes a photovoltaic module (not shown) for transmitting photographic coordinates to a servomotor through wireless communication using a Zigbee modem, And acquiring the shot image by connecting the n images based on the shot coordinates.

For example, the deterioration diagnosis apparatus sequentially drives n servo coordinates (X axis, Y axis) in accordance with the flowchart shown in Fig. 4 (i), drives the servo motor, it is possible to capture n images corresponding to n photographing coordinates.

4, the deterioration diagnosis apparatus sets the initial value of 'Cam_Index' to '0' (step 410), divides 'Cam_Index' by 3 into '0' Axis coordinate ('0') is set to the Y-axis coordinate (Step 430), and the X-axis coordinate ('0') is set to the Y- (Step S440), the Cam_Index is counted by one (step 450), and the deterioration diagnosis apparatus 100 transmits the Y axis coordinate ('0') to the up / If Cam_Index is not n (here, '9'), the process moves to step 420 (step 460).

In other words, the deterioration diagnosis apparatus sets 9 Cam coordinates to X axis and Y axis, respectively, in which 'Cam_Index' is incremented by 1 from '0' to '8' '(1, 2)', '(1, 0)', '(1, 1) 2, 0) 'and' (2, 2) 'are divided into X and Y axes, respectively.

The degradation diagnosis apparatus moves and controls the servomotor to a photographing point at which an image corresponding to each photographing coordinate can be picked up so as to connect the nine images picked up through the thermal camera according to the photographing coordinates, As shown in FIG.

5 is a diagram for explaining a process of extracting an abnormal region from an image in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.

Referring to FIG. 5, a deterioration diagnosis apparatus for a photovoltaic battery module according to an embodiment of the present invention combines nine images captured through a thermal imaging camera to obtain one captured image as shown in FIG. 5 (ii) (Step 510).

The deterioration diagnosis apparatus synthesizes the photovoltaic regions corresponding to the photovoltaic module using the color values of the pixels constituting the photographed image, and extracts the photovoltaic regions as shown in (ii) of FIG. 5 (step 520).

The deterioration diagnosis apparatus extracts only the abnormal region from the sunlight region and performs masking processing with a blue-based color (Step 530). For example, the deterioration diagnosis apparatus determines the deterioration of the photovoltaic module corresponding to each pixel according to the brightness value (the degree of bright color) of each pixel forming the photovoltaic area, The abnormal region can be identified and extracted.

The deterioration diagnosis apparatus displays the abnormal region in the captured image, and stores the captured image in the database (Step 540).

The deterioration diagnosis apparatus may transmit a photographed image obtained by masking the abnormal region to a color of a blue color to the manager module, and inform the manager module of the distribution of the deteriorated photovoltaic module.

6 is a diagram illustrating an algorithm for extracting an image abnormality in a deterioration diagnosis apparatus for a solar cell module according to an embodiment of the present invention.

Referring to FIG. 6, the deterioration diagnosis apparatus for a photovoltaic module according to an embodiment of the present invention processes n images captured through a thermal imaging camera according to an abnormal extraction algorithm, And notify the manager module of the result of the determination by ZigBee communication.

For example, the degradation diagnosis apparatus calculates a brightness value of each pixel constituting the abnormal candidate region, (i) forms a mask by applying a brightness value of each pixel to a weighted average formula, (ii) (Iii) a pixel having a weighted average equal to or greater than a predetermined value is identified as an ideal region, and (iv) a final image for determining an object to be processed according to the deterioration diagnosis is generated (v).

Hereinafter, the operation flow of the apparatus 100 for diagnosing deterioration of the photovoltaic battery module according to the embodiments of the present invention will be described in detail with reference to FIGS.

7 is a flowchart illustrating a procedure of a deterioration diagnosis method of a photovoltaic battery module according to an embodiment of the present invention.

The deterioration diagnosis method of the photovoltaic module according to the present embodiment can be performed by the deterioration diagnosis apparatus 100 of the photovoltaic module described above.

Referring to Fig. 7, in step 710, the deterioration diagnosis apparatus 100 of the photovoltaic module acquires the photographed image of the photovoltaic power system from the thermal imaging camera.

The step 710 may be a step of receiving an image of a plurality of photovoltaic cell modules installed in a large area by controlling a thermal imaging camera and a servo motor through wireless communication using a Zigbee modem.

For example, the degradation diagnosis apparatus 100 drives the servomotor in at least one of the up-and-down direction and the left-right direction through the input of the imaging coordinates, (N is a natural number of 2 or more, for example, '9 times') for receiving the image captured by the thermal imaging camera located at the photographing point through the wireless communication using the ZigBee modem .

Further, the deterioration diagnosis apparatus 100 controls the servomotor to move the thermal imaging camera to a desired photographing point, and changes the angle of the thermal imaging camera at a predetermined interval (e.g., " 10 degrees & Images can be captured.

The degradation diagnosis apparatus 100 may acquire the captured image by expanding and connecting n images, for example, in a panoramic manner based on the image capturing coordinates or the image capturing angle.

In step 720, the deterioration diagnosis apparatus 100 of the photovoltaic module identifies, from the photographed image, an abnormal region which is determined as deterioration with respect to the solar photovoltaic power system.

For example, the degradation diagnostic apparatus 100 extracts a solar light region corresponding to the solar cell module except the background using the color value of each pixel constituting the photographed image, and calculates the lightness of each pixel constituting the solar light region It is possible to identify an abnormal region in which it is determined that the photovoltaic module is deteriorated according to the value (brightness of the color).

For example, the deterioration diagnosis apparatus 100 may determine, from the captured image, an area having a red color value (e.g., orange, red, or yellow) associated with heat generation of the photovoltaic module, (A region corresponding to the photovoltaic cell module), and an abnormal candidate region in which a brightness value that does not satisfy the reference value is expressed among the abnormal candidate regions is defined as the abnormal region Can be identified.

In step 730, the deterioration diagnosis apparatus 100 of the photovoltaic module transmits information on the photovoltaic battery module in the photovoltaic power system corresponding to the abnormal region, through wireless communication using a zigbee modem, Notify by module.

For example, the deterioration diagnosis apparatus 100 visualizes the abnormal region by masking the abnormal region using a blue-based color that is easily distinguishable from the red-based color associated with the heat of the solar cell module It is possible to easily distinguish the deteriorated photovoltaic module in the ideal region from the photovoltaic module in the steady state within the photographed image.

As described above, according to the embodiment of the present invention, it is possible to easily and quickly diagnose the deterioration of a large number of photovoltaic modules installed in a large area using a thermal camera that can be controlled by ZigBee wireless communication, It is possible to prevent power generation loss of the photovoltaic power generation plant.

8 is a flowchart illustrating a procedure of a deterioration diagnosis method for a solar cell module according to another embodiment of the present invention.

8, the deterioration diagnosis apparatus 100 of the photovoltaic module detects the position of the servomotor (step 810), and reads the abnormality occurrence at the corresponding position using the thermal imaging camera (step 820 To 830).

The deterioration diagnosis apparatus 100 confirms the photovoltaic module registered in the corresponding position (step 840), and transmits the alarm to the manager module through the wireless communication (ZigBee module) using the ZigBee modem (Step 850), drives the servomotor to move the thermal imaging camera to the next position, and then performs step 810 (step 860).

If it is determined that no abnormality has occurred, the deterioration diagnosis apparatus 100 goes to step 860 to drive the servo motor to move the thermal imaging camera to the next position.

The method according to an embodiment of the present invention may be implemented in the form of a program command that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, and the like, alone or in combination. The program instructions to be recorded on the medium may be those specially designed and configured for the embodiments or may be available to those skilled in the art of computer software. Examples of computer-readable media include magnetic media such as hard disks, floppy disks, and magnetic tape; optical media such as CD-ROMs and DVDs; magnetic media such as floppy disks; Magneto-optical media, and hardware devices specifically configured to store and execute program instructions such as ROM, RAM, flash memory, and the like. Examples of program instructions include machine language code such as those produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. For example, it is to be understood that the techniques described may be performed in a different order than the described methods, and / or that components of the described systems, structures, devices, circuits, Lt; / RTI > or equivalents, even if it is replaced or replaced.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

100: Deterioration diagnostic device of photovoltaic module
110: Image acquisition unit
120: area identification unit
130: deterioration notification section
140: Database

Claims (15)

Allocating imaging coordinates to each of the photovoltaic cell modules constituting the photovoltaic power system;
A first step of driving the servo-motor in at least one of a vertical direction and a horizontal direction according to the input of the shooting coordinates to position the thermal imaging camera at a shooting point specified by the shooting coordinates;
The image picked up by the thermal imaging camera for picking up an image relating to the solar cell module having a certain area and distributed by the angle change according to the position control at the photographing point is received through the wireless communication using the Zigbee modem ;
Repeating the first step and the second step to receive n images (n is a natural number of 2 or more) images of the photovoltaic module in the respective photographing coordinates from the thermal imaging camera;
Connecting the n images based on the shot coordinates to obtain a shot image for the solar power system;
Identifying, from the photographed image, an anomaly region determined to be degraded for the solar power system; And
Notifying the manager module of information on the photovoltaic module in the solar photovoltaic system corresponding to the abnormal region through wireless communication using the ZigBee modem
Lt; / RTI >
Wherein the step of assigning the shooting coordinates comprises:
Setting an initial value to '0';
A coordinate allocating step of allocating a quotient obtained by dividing the initial value by a predetermined natural number and a remainder as X coordinate and Y coordinate, respectively; And
Repeating the coordinate allocating step while increasing the initial value by '1', and allocating the n photographing coordinates
Lt; / RTI >
The step of acquiring the captured image includes:
If the n images according to the allocation of the n photographing coordinates are sensed,
And expanding the n images by connecting them in a panoramic manner, superimposing at least two images out of the n images on the basis of the same area,
Wherein the deterioration diagnosis method comprises the steps of: delete delete delete The method according to claim 1,
Wherein identifying the abnormal region comprises:
Defining an area having a red color value associated with the heat of the solar cell module as an ideal candidate area from the photographed image; And
Identifying the abnormal candidate region in which the brightness value that does not satisfy the reference value is displayed among the abnormal candidate regions as the abnormal region
Wherein the deterioration diagnosis method comprises the steps of: 6. The method of claim 5,
Wherein identifying the abnormal region comprises:
Calculating a weighted average for each pixel by using a brightness value of each pixel constituting the abnormal candidate region; And
Identifying an ideal candidate region having a pixel having a weighted average equal to or greater than a predetermined value as the abnormal region;
Wherein the deterioration diagnosis method further comprises the steps of: The method according to claim 1,
Wherein the notification to the manager module comprises:
A step of separately displaying the abnormal region in the photographed image and transmitting the abnormal region to the manager module to inform the deterioration of the photovoltaic module corresponding to the abnormal region
Wherein the deterioration diagnosis method comprises the steps of: 8. The method of claim 7,
Wherein the step of informing the deterioration of the solar cell module comprises:
Notifying the manager module of the distribution of the photovoltaic modules deteriorated in the photovoltaic power system through transmission of a photographed image obtained by masking the abnormal region with a color of a blue color system
Wherein the deterioration diagnosis method comprises the steps of: The method according to claim 1,
Wherein the notification to the manager module comprises:
Referring to the arrangement position of the photovoltaic module in the image captured by the general camera or the layout of at least one photovoltaic module constituting the photovoltaic power system, And informing the manager module of information on the serial number and the position of the recognized photovoltaic module
Wherein the deterioration diagnosis method comprises the steps of: The photographing coordinates are assigned to each of the solar battery modules constituting the solar photovoltaic power system and the servo motor is driven in at least one of the vertical direction and the horizontal direction in accordance with the input of the photographing coordinates, A photographic camera for photographing an image relating to the photovoltaic module having a certain area and distributed by a change in angle according to a position control at a photographing point, (N is a natural number of 2 or more) images obtained by capturing the photovoltaic module in each of the photographing coordinates, from the thermal imager camera through wireless communication using a Zigbee modem And acquiring a photographed image for the solar power system by connecting the n images based on the photographing coordinates An image acquisition unit;
From the photographed image, an area identifying unit that identifies an abnormal region that is determined as deterioration with respect to the photovoltaic power system; And
A deterioration notification unit for informing the manager module of information on the photovoltaic module in the solar photovoltaic system corresponding to the abnormal region through wireless communication using a Zigbee modem,
Lt; / RTI >
Wherein the image obtaining unit comprises:
The initial value is set to '0'
Axis coordinate and Y-axis coordinates, and increasing the initial value by " 1 ", so that the n-th coordinate and the Quot ;, and "
If the n images according to the allocation of the n photographing coordinates are sensed,
The n images are connected in a panoramic manner, and at least two images out of the n images are superimposed with respect to the same area to acquire the captured image
Deterioration diagnosis device of photovoltaic module. delete delete delete 11. The method of claim 10,
The deterioration notification unit,
The abnormal region is separately displayed in the photographed image and transmitted to the manager module to notify deterioration of the photovoltaic module corresponding to the abnormal region
Deterioration diagnosis device of photovoltaic module. 11. The method of claim 10,
The deterioration notification unit,
Referring to the arrangement position of the photovoltaic module in the image captured by the general camera or the layout of at least one photovoltaic module constituting the photovoltaic power system, And notifies the manager module of information on the serial number and the position of the recognized photovoltaic module
Deterioration diagnosis device of photovoltaic module.

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