CN118674743A - Shielding state identifying system for solar cell - Google Patents

Abstract

The present invention relates to a solar cell shading state recognition system. The system comprises: a heat detection device, which is used to detect the heat dissipated by the surface of a solar cell module at the current moment, and to send out a heat dissipation excess signal when the detected surface heat dissipation is greater than or equal to a set heat threshold; a third extraction device, which is used to intelligently trigger a shading recognition instruction to mark the solar cell module being shading by a sun visor based on various visual data. Through this system, it is possible to intelligently trigger a shading recognition instruction to mark the solar cell module being shading by a sun visor based on various curvature information of the standard contour curve of the sun visor, various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor, and multiple visual data of the solar cell module, thereby completing an intelligent judgment on whether the sun visor can play a shading effect on the application of the solar cell module.

Description

Solar cell shading status recognition system

Technical Field

The present invention relates to the field of solar cells, and more particularly to a system for identifying a shielding state of a solar cell.

Background Art

Solar cells are a type of photoelectric semiconductor sheet that uses sunlight to generate electricity directly. They are also called "solar chips" or "photovoltaic cells". As long as they are illuminated under certain conditions, they can instantly output voltage and generate current in a circuit. In physics, this is called solar photovoltaics, or photovoltaics for short.

When sunlight shines on the semiconductor p-n junction, new hole-electron pairs are formed. Under the action of the built-in electric field of the p-n junction, the photogenerated holes flow to the p region and the photogenerated electrons flow to the n region. When the circuit is connected, current is generated. This is the working principle of photovoltaic solar cells. There are two ways to generate solar power, one is the light-heat-electricity conversion method, and the other is the direct light-electricity conversion method.

CN116682885A provides a photovoltaic module and a manufacturing method thereof, and a photovoltaic system. The manufacturing method of the photovoltaic module includes: providing a front plate, the back of the front plate is formed with a receiving groove; arranging a solar cell in the receiving groove; arranging a first silica gel on the side of the solar cell away from the groove bottom of the receiving groove and the part of the groove bottom not blocked by the solar cell, the first silica gel covers the solar cell and flows between the solar cell and the groove bottom; arranging a back plate on the side of the solar cell away from the front plate; arranging a second silica gel between the mounting area of the back plate and the junction box; arranging the junction box in the mounting area, and arranging a third silica gel in the junction box to form a battery stack; and curing the battery stack.

CN116759485A provides a photovoltaic module and a manufacturing method thereof, and a photovoltaic system. The manufacturing method of the photovoltaic module includes: setting a first silicone on the back of the front plate; setting a solar cell on the side of the first silicone away from the front plate; setting a second silicone on the side of the solar cell away from the first silicone and the side of the first silicone not blocked by the solar cell away from the front plate; setting a back plate on the side of the second silicone away from the front plate; setting a third silicone between the mounting area of the back plate and the junction box; setting the junction box in the mounting area, and setting a fourth silicone in the junction box to form a battery stack; and curing the battery stack.

However, during the use of solar cell modules, the relative state of the solar cell modules and the sun visor cannot be accurately analyzed, resulting in an inability to determine whether the sun visor can provide shade for the solar cell modules, and whether it will lead to poor heat dissipation on the surface of the solar cell modules or even cause an explosion.

Summary of the invention

In order to solve the technical problems in the related fields, the present invention provides a solar cell shading state recognition system, which uses matching of each curvature information of the standard contour curve of the sun visor with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor as a first condition, and matches part of the curvature information of the standard contour curve of the solar cell module with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell module and the remaining part with each curvature information of the standard contour curve of the sun visor as a second condition. When the first condition and the second condition are met at the same time, an shading recognition instruction is issued to mark that the solar cell module is blocked by the sun visor, thereby completing the intelligent judgment of whether the sun visor can play a shading effect on the application of the solar cell module.

The present invention needs to have at least the following three important invention points:

Invention point A: obtaining various curvature information of the standard contour curve of the solar cell assembly and obtaining various curvature information of the standard contour curve of the sun visor, and extracting the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the sequential conversion screen after customized image quality optimization based on the imaging characteristics of the solar cell assembly and the imaging characteristics of the sun visor, and simultaneously obtaining various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell assembly and various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor, thereby providing key information for subsequent intelligent recognition of occlusion;

Invention point B: Matching each curvature information of the standard contour curve of the sun visor with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor as the first condition, matching each curvature information of the standard contour curve of the solar cell module partially with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell module and matching the remaining part with each curvature information of the standard contour curve of the sun visor as the second condition, when the first condition and the second condition are met at the same time, issuing an obstruction recognition instruction to mark that the solar cell module is obstructed by the sun visor, thereby completing the intelligent recognition of whether the solar cell module is obstructed by the sun visor at the solar cell module work site to avoid overheating of the solar cell module;

Invention point C: Only when it is detected that the heat emitted by the surface of the solar cell assembly at the current moment is greater than or equal to the set heat threshold, the imaging processing of the environment where the solar cell assembly is located and the subsequent intelligent identification of occlusion are triggered, thereby avoiding excessive consumption of system power.

According to the present invention, a solar cell shielding state recognition system is provided, the system comprising:

A heat detection device is in contact with the solar cell assembly, and is used to detect the heat dissipated by the surface of the solar cell assembly at a current moment, and to send a heat dissipation excess signal when the detected surface heat dissipation is greater than or equal to a set heat threshold, and to send a heat dissipation controllable signal when the detected surface heat dissipation is less than the set heat threshold;

An electronic eye imager, arranged opposite to the solar cell assembly and connected to the heat detection device, is used to perform imaging processing of the environment where the solar cell assembly is located upon receiving the heat dissipation excess signal, so as to obtain and output a corresponding instant imaging picture;

A sequential conversion device, connected to the electronic eye imager, is used to sequentially perform point image restoration processing, sharpening processing based on a USM filter, and image content enhancement processing based on an exponential transformation on the received instant imaging pictures, so as to obtain and output corresponding sequential conversion pictures;

A first extraction device is used to obtain various curvature information of the standard contour curve of the solar cell assembly and to obtain various curvature information of the standard contour curve of the sunshade;

A second extraction device is connected to the sequential conversion device, and is used to extract the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the received sequential conversion picture based on the imaging characteristics of the solar cell assembly and the imaging characteristics of the sun visor, respectively, and simultaneously obtain various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell assembly and various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor;

The third extraction device is connected to the first extraction device and the second extraction device respectively, and is used for matching each curvature information of the standard contour curve of the sun visor with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor as a first condition, and matching a part of each curvature information of the standard contour curve of the solar cell module with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell module and matching the remaining part with each curvature information of the standard contour curve of the sun visor as a second condition. When the first condition and the second condition are met at the same time, an occlusion recognition instruction is issued to mark that the solar cell module is blocked by the sun visor.

The solar cell shading state recognition system of the present invention has a compact structure and wide application. Since it can intelligently trigger the shading recognition instruction of marking the solar cell module being shading by the sun visor based on the various curvature information of the standard contour curve of the sun visor, the various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor, and multiple visual data of the solar cell module, it can complete the intelligent judgment of whether the sun visor can play a shading effect on the application of the solar cell module.

DETAILED DESCRIPTION

Embodiment 1 is a solar cell shielding state recognition system according to the primary embodiment of the present invention, the system comprising:

A heat detection device is in contact with the solar cell assembly, and is used to detect the heat dissipated by the surface of the solar cell assembly at a current moment, and to send a heat dissipation excess signal when the detected surface heat dissipation is greater than or equal to a set heat threshold, and to send a heat dissipation controllable signal when the detected surface heat dissipation is less than the set heat threshold;

For example, the heat detection device is in contact with the solar cell assembly, and is used to detect the heat dissipated by the surface of the solar cell assembly at the current moment, and when the detected surface heat dissipation is greater than or equal to a set heat threshold, a heat dissipation excess signal is issued, and when the detected surface heat dissipation is less than the set heat threshold, a heat dissipation controllable signal is issued, including: using a heat sensor and a programmable logic device to collaboratively implement the heat detection device;

An electronic eye imager, arranged opposite to the solar cell assembly and connected to the heat detection device, is used to perform imaging processing of the environment where the solar cell assembly is located upon receiving the heat dissipation excess signal, so as to obtain and output a corresponding instant imaging picture;

A sequential conversion device, connected to the electronic eye imager, is used to sequentially perform point image restoration processing, sharpening processing based on a USM filter, and image content enhancement processing based on an exponential transformation on the received instant imaging pictures, so as to obtain and output corresponding sequential conversion pictures;

A first extraction device is used to obtain various curvature information of the standard contour curve of the solar cell assembly and to obtain various curvature information of the standard contour curve of the sunshade;

A second extraction device is connected to the sequential conversion device, and is used to extract the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the received sequential conversion picture based on the imaging characteristics of the solar cell assembly and the imaging characteristics of the sun visor, respectively, and simultaneously obtain various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell assembly and various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor;

a third extraction device, connected to the first extraction device and the second extraction device respectively, for matching each curvature information of the standard contour curve of the sun visor with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor as a first condition, matching a part of each curvature information of the standard contour curve of the solar cell module with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell module and matching the remaining part with each curvature information of the standard contour curve of the sun visor as a second condition, and issuing an obstruction recognition instruction to mark that the solar cell module is obstructed by the sun visor when the first condition and the second condition are simultaneously met;

Wherein, the electronic eye imager is also used to temporarily suspend the imaging process of the environment where the solar cell assembly is located when receiving the heat dissipation controllable signal;

The sequential conversion device includes a first processing device, a second processing device and a third processing device, which are used to respectively perform point image restoration processing, sharpening processing based on a USM filter and image content enhancement processing based on an exponential transformation.

Embodiment 2 is a solar cell shielding state recognition system according to a secondary embodiment of the present invention.

Different from the first embodiment, the solar cell shielding state recognition system in the second embodiment may further include the following components:

A decibel measurement mechanism is connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, respectively, and is used to measure the decibel of noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively;

Wherein, the decibel measurement mechanism is respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to respectively measure the decibels of the noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, including: the decibel measurement mechanism includes a plurality of decibel measurement units, which are respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, so as to complete the respective measurement of the decibels of the noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device;

Wherein, the decibel measurement mechanism includes a plurality of decibel measurement units, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the respective measurement of the decibel of the noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, including: the plurality of decibel measurement units are a plurality of decibel sensor circuits, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the respective measurement of the decibel of the noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively;

Wherein, the plurality of decibel measurement units are a plurality of decibel sensing circuits, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the respective measurement of the decibel of the noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, including: the structures of the plurality of decibel sensing circuits are the same;

Among them, the multiple decibel measurement units are multiple decibel sensing circuits, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the separate measurement of the decibels of the nearby noise of the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, and also include: the multiple decibel sensing circuits have the same decibel measurement upper limit value and decibel measurement lower limit value.

Embodiment 3 is a solar cell shielding state recognition system according to a further embodiment of the present invention.

Different from the first embodiment, the solar cell shielding state recognition system in the third embodiment may further include the following components:

A voice control processing device is arranged near the sequence conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequence conversion device, the first extraction device, the second extraction device and the third extraction device with the voice control services they need respectively;

The voice control processing device is arranged near the sequence conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequence conversion device, the first extraction device, the second extraction device and the third extraction device with the voice control services required by each of them, including: the voice control processing device includes a sound collection unit, a numerical conversion unit and a signal sending unit;

The voice control processing device is arranged near the sequence conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequence conversion device, the first extraction device, the second extraction device and the third extraction device with their respective required voice control services, and further includes: the numerical conversion unit is connected to the sound collection unit and the signal sending unit respectively;

Among them, the voice control processing device is arranged near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequential conversion device, the first extraction device, the second extraction device and the third extraction device with their respective required voice control services. It also includes: the sound collection unit is used to collect sound signals near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and whether the respectively collected sound signals belong to sound control signals, so as to only send the sound control signals to the numerical conversion unit for control signal analysis.

In addition, in the solar cell occlusion state recognition system, the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the received sequential transition picture are extracted based on the imaging characteristics of the solar cell assembly and the imaging characteristics of the sun visor, respectively, including: the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the received sequential transition picture are extracted based on the brightness value distribution interval of the solar cell assembly and the brightness value distribution interval of the sun visor, respectively.

It is believed that the invention and many of its attendant advantages will be appreciated from the above description, and it is apparent that various changes may be made in the form, structure and arrangement of components without departing from the disclosed subject matter or sacrificing all of its substantial advantages. The form of description is merely illustrative.

In addition, the embodiment of the present invention is not limited to the above-mentioned embodiment, and various changes can be made without departing from the scope of the present invention.

Claims (9)

1. A solar cell shielding state recognition system, characterized in that the system comprises: A heat detection device is in contact with the solar cell assembly, and is used to detect the heat dissipated by the surface of the solar cell assembly at a current moment, and to send a heat dissipation excess signal when the detected surface heat dissipation is greater than or equal to a set heat threshold, and to send a heat dissipation controllable signal when the detected surface heat dissipation is less than the set heat threshold; An electronic eye imager, arranged opposite to the solar cell assembly and connected to the heat detection device, is used to perform imaging processing of the environment where the solar cell assembly is located upon receiving the heat dissipation excess signal, so as to obtain and output a corresponding instant imaging picture; A sequential conversion device, connected to the electronic eye imager, is used to sequentially perform point image restoration processing, sharpening processing based on a USM filter, and image content enhancement processing based on an exponential transformation on the received instant imaging pictures, so as to obtain and output corresponding sequential conversion pictures; A first extraction device is used to obtain various curvature information of the standard contour curve of the solar cell assembly and to obtain various curvature information of the standard contour curve of the sunshade; A second extraction device is connected to the sequential conversion device, and is used to extract the image blocks corresponding to the solar cell assembly and the image blocks corresponding to the sun visor in the received sequential conversion picture based on the imaging characteristics of the solar cell assembly and the imaging characteristics of the sun visor, respectively, and simultaneously obtain various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell assembly and various curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor; The third extraction device is connected to the first extraction device and the second extraction device respectively, and is used for matching each curvature information of the standard contour curve of the sun visor with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the sun visor as a first condition, and matching a part of each curvature information of the standard contour curve of the solar cell module with each curvature information corresponding to the geometric shape of the edge of the image block corresponding to the solar cell module and matching the remaining part with each curvature information of the standard contour curve of the sun visor as a second condition. When the first condition and the second condition are met at the same time, an occlusion recognition instruction is issued to mark that the solar cell module is blocked by the sun visor. 2. The solar cell shielding state recognition system according to claim 1, characterized in that: The electronic eye imager is also used to suspend the imaging process of the environment where the solar cell assembly is located when receiving the heat dissipation controllable signal; The sequential conversion device includes a first processing device, a second processing device and a third processing device, which are used to respectively perform point image restoration processing, sharpening processing based on a USM filter and image content enhancement processing based on an exponential transformation. 3. The solar cell shielding state recognition system according to claim 2, characterized in that the system further comprises: A decibel measurement mechanism is connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, respectively, and is used to measure the decibel of noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively; Among them, the decibel measuring mechanism is respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to respectively measure the decibels of noise near each of the sequential conversion device, the first extraction device, the second extraction device and the third extraction device. The decibel measuring mechanism includes a plurality of decibel measuring units, which are respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device to complete the respective measurements of the decibels of noise near each of the sequential conversion device, the first extraction device, the second extraction device and the third extraction device. 4. The solar cell shielding state recognition system according to claim 3, characterized in that: The decibel measurement mechanism includes a plurality of decibel measurement units, which are used to be respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device to complete the respective measurements of the decibels of noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device. The plurality of decibel measurement units are a plurality of decibel sensing circuits, which are used to be respectively connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device to complete the respective measurements of the decibels of noise near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device. 5. The solar cell shielding state recognition system according to claim 4, characterized in that: The multiple decibel measurement units are multiple decibel sensing circuits, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the separate measurement of the nearby noise decibels of the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, including: the structures of the multiple decibel sensing circuits are the same. 6. The solar cell shielding state recognition system according to claim 5, characterized in that: The multiple decibel measurement units are multiple decibel sensing circuits, which are used to be connected to the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, so as to complete the separate measurement of the decibels of the nearby noise of the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively, and also include: the multiple decibel sensing circuits have the same decibel measurement upper limit value and decibel measurement lower limit value. 7. The solar cell shielding state recognition system according to any one of claims 3 to 6, characterized in that the system further comprises: The voice control processing device is arranged near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the required voice control services for the sequential conversion device, the first extraction device, the second extraction device and the third extraction device respectively. 8. The solar cell shielding state recognition system according to claim 7, characterized in that: A voice control processing device is arranged near the sequence conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequence conversion device, the first extraction device, the second extraction device and the third extraction device with their respective required voice control services, including: the voice control processing device includes a sound collection unit, a numerical conversion unit and a signal sending unit. 9. The solar cell shielding state recognition system according to claim 8, characterized in that: A voice control processing device is arranged near the sequence conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequence conversion device, the first extraction device, the second extraction device and the third extraction device with their respective required voice control services, and further includes: the numerical conversion unit is connected to the sound collection unit and the signal sending unit respectively; Among them, the voice control processing device is arranged near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and is used to provide the sequential conversion device, the first extraction device, the second extraction device and the third extraction device with their respective required voice control services. It also includes: the sound collection unit is used to collect sound signals near the sequential conversion device, the first extraction device, the second extraction device and the third extraction device, and whether the collected sound signals belong to sound control signals, so as to only send the sound control signals to the numerical conversion unit for control signal analysis.