KR102548454B1 - method for recommending installation location and installation angle of solar panel - Google Patents

Abstract

A method for recommending an installation location and an installation angle of a solar panel according to an embodiment of the present invention includes loading a 3D space model for an evaluation space, which is a space including a place where an installation of a solar panel is planned, a plurality of incident angles of sunlight Acquiring a plurality of shaded images in which the shaded and positive portions generated in the evaluation model including the 3D space model are visually expressed according to the step, pixels representing the same point of the evaluation model in each of the plurality of shaded images Calculating the solar power generation efficiency for the same point based on the pixel value, solar radiation data previously measured in the evaluation space, and the pixel value of the brightest pixel in the plurality of shaded images, calculating the solar power generation efficiency Obtaining calculation data obtained by calculating the photovoltaic power generation efficiency for each point of the evaluation model expressed in the plurality of shaded images by repeating the process, and the photovoltaic power generation in the evaluation space based on the calculation data and obtaining an installation guide model marked so that a point having an efficiency equal to or higher than a threshold value is visually distinguished.

Description

Method for recommending installation location and installation angle of solar panel {method for recommending installation location and installation angle of solar panel}

The present invention relates to a method for recommending an installation position and an installation angle of a solar panel.

In general, the power generation efficiency of a solar panel is affected by a position at which the solar panel is installed and an angle at which the solar panel is installed. More specifically, the power generation efficiency of the solar panel may vary depending on the amount of solar radiation received by the solar panel according to the installation location and the shade generated on the surface of the solar panel according to the topography and installation angle of the site where the solar panel is installed.

For example, when shadows occur on the surface of the solar panel depending on the topography of the place where the solar panel is installed and the incident angle of sunlight, power generation efficiency is rapidly reduced, and thus it may be difficult to meet a target power generation amount.

An object to be solved by the present invention is to provide a solar panel installation position and installation angle recommendation method capable of providing a guide for the installation position and installation angle of the solar panel.

The tasks of the present invention are not limited to the tasks mentioned above, and other tasks not mentioned will be clearly understood by those skilled in the art from the following description.

The method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention for solving the above problems is the step of loading a 3D space model for an evaluation space, which is a space including a place where the installation of a solar panel is planned. Obtaining a plurality of shaded images in which a shaded part and a positive part generated in the evaluation model including the 3D space model are visually expressed according to a plurality of incident angles of sunlight, each of the plurality of shaded images of the evaluation model Computing the solar power generation efficiency for the same point based on pixel values of pixels representing the same point, insolation data previously measured in the evaluation space, and the pixel value of the brightest pixel in the plurality of shaded images; Obtaining calculation data obtained by calculating photovoltaic efficiency for each point of the evaluation model expressed in the plurality of shaded images by repeating the process of calculating photovoltaic efficiency, and evaluating the calculation based on the calculation data. and obtaining an installation guide model marked to visually distinguish a point where the photovoltaic power generation efficiency is greater than or equal to a threshold value in space.

The evaluation model may further include at least one solar panel model, and the step of adding at least one solar panel model to a predetermined position of the 3D space model may be further included.

The method may further include positioning the solar panel model at a predetermined angle with respect to the ground of the 3D space model.

The step of obtaining the photovoltaic power generation efficiency of each point of the solar panel model for a plurality of predetermined angles by repeating the process of obtaining the operation data while changing the predetermined angle, wherein the installation guide model In the acquiring step, a plurality of installation guide models matching each of the plurality of predetermined angles may be obtained.

의 수식을 이용하여 연산되며, 여기서 상기 '

'는 상기 복수의 음영이미지에서 상기 특정 지점을 나타내는 픽셀들의 픽셀값 및 상기 일사량데이터를 기반으로 연산되는 상기 특정 지점의 평균일사량정보이고, 상기 '

'는 상기 가장 밝은 픽셀의 픽셀값을 기반으로 판단되는 최고일사량정보일 수 있다.In the step of calculating the photovoltaic power generation efficiency, the photovoltaic power generation efficiency for a specific point of the evaluation model is

It is calculated using the formula of, where the '

' is the average solar radiation information of the specific point calculated based on the pixel values of pixels representing the specific point in the plurality of shaded images and the solar radiation data, and the '

' may be the highest solar radiation information determined based on the pixel value of the brightest pixel.

Each of the plurality of shaded images represents a specific time period, and the average solar radiation information of the specific point,

의 수식을 이용하여 연산되며, 여기서 상기' n'은 상기 복수의 음영이미지의 수이며,

It is calculated using the formula of, where 'n' is the number of the plurality of shaded images,

'은 상기 특정 지점이 양지부분일 경우는 0의 값을 가지고 상기 특정 지점이 음지부분일 경우 1의 값을 가지며, 상기 '

'는 상기 일사량데이터로부터 획득되는 상기 평가공간의 양지부분에서 시간 t일 때 측정된 일사량값과 상기 일사량데이터로부터 획득될 수 있는 측정된 일사량값 중 최고값과의 비율이며, '

'는 상기 일사량데이터로부터 획득되는 상기 평가공간의 음지부분에서 시간 t일 때 측정된 일사량값과 상기 일사량데이터로부터 획득될 수 있는 측정된 일사량값 중 최고값과의 비율이며, '

'는 시간 t를 대표하는 음영이미지에서 상기 특정 지점이 양지부분일 경우 특정 지점에 대한 픽셀값이며, '

'는, 시간 t를 대표하는 음영이미지에서 상기 특정 지점이 음지부분일 경우 특정 지점에 대한 픽셀값일 수 있다.remind '

' has a value of 0 when the specific point is a positive part and has a value of 1 when the specific point is a negative part, and the '

' is the ratio between the measured solar radiation value at time t in the positive part of the evaluation space obtained from the solar radiation data and the highest value among the measured solar radiation values that can be obtained from the solar radiation data, '

' is the ratio between the measured solar radiation value at time t in the shaded part of the evaluation space obtained from the solar radiation data and the highest value among the measured solar radiation values that can be obtained from the solar radiation data, '

' is a pixel value for a specific point in the shaded image representing time t when the specific point is a positive part, '

' may be a pixel value for a specific point in the shaded image representing time t when the specific point is a shaded portion.

In the step of acquiring the plurality of shadow images, the plurality of images representing the specific time zone are generated in the evaluation model according to a plurality of incident angles of sunlight distinguished by a difference in at least one of sun azimuth and sun altitude. The part and the brisket part can be visually expressed and obtained.

An interval of a specific time period represented by the plurality of shaded images divides a year by a predetermined criterion, and the photovoltaic power generation efficiency may be an annual average photovoltaic power generation efficiency.

Acquiring image information about the evaluation space using an unmanned aerial vehicle (UAV) and generating the 3D space model based on the image information, wherein the 3D space model is loaded In the step, the 3D space model generated in the step of generating the 3D space model may be loaded.

The installation guide model may be obtained by visually distinguishing a point where the photovoltaic power generation efficiency is equal to or greater than a threshold value in the evaluation space on the evaluation model.

Other specific details of the invention are included in the detailed description and drawings.

According to embodiments of the present invention, at least the following effects are provided.

According to an embodiment of the present invention, when a user intends to install a solar panel, a guide for at least one of an installation position and an installation angle of the solar panel may be obtained.

In addition, according to an embodiment of the present invention, 3D terrain information is obtained using an unmanned aerial vehicle (eg, a drone), so that the cost of acquiring terrain information can be reduced.

In addition, according to an embodiment of the present invention, it is possible to obtain topographical information of complex topography (eg, downtown area) by photographing the topography using an unmanned aerial vehicle.

In addition, according to an embodiment of the present invention, an optimal installation position and an optimal installation angle of the solar panel can be known based on the obtained 3D terrain information and solar radiation data.

Effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a flowchart of a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention.
2 is a diagram illustrating a plurality of shaded images obtained according to an embodiment of the present invention.
3 to 6 are views showing an installation guide model in which points having a photovoltaic power generation efficiency equal to or higher than a threshold value are visually distinguished.
7 is a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention, further comprising a step of adding a solar panel model and a step of positioning the solar panel model at a predetermined angle with respect to the ground. It is a flow chart for the case of including.
8 is a flowchart illustrating a case in which the method for recommending an installation location and an installation angle of a solar panel according to an embodiment of the present invention further includes obtaining photovoltaic power generation efficiencies of a solar panel model for a plurality of predetermined angles. .
9 is a flowchart illustrating a case in which a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention further includes receiving a threshold value different from a previously input threshold value from a user.
10 is a diagram for a case in which a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention further includes obtaining image information about an evaluation space and generating a 3D space model. It is a flow chart.

Advantages and features of the present invention, and methods of achieving them, will become clear with reference to the detailed description of the following embodiments taken in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments make the disclosure of the present invention complete, and common knowledge in the art to which the present invention belongs. It is provided to completely inform the person who has the scope of the invention, and the present invention is only defined by the scope of the claims.

In addition, the embodiments described in this specification will be described with reference to cross-sectional views and/or schematic views, which are ideal exemplary views of the present invention. Accordingly, the shape of the illustrative drawings may be modified due to manufacturing techniques and/or tolerances. In addition, in each drawing shown in the present invention, each component may be shown somewhat enlarged or reduced in consideration of convenience of explanation. Like reference numbers designate like elements throughout the specification.

Hereinafter, configurations that can be used to practice the embodiments of the present invention will be described first to aid understanding of the embodiments of the present invention.

First, a user-usable computing device may be used in the method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention. For example, the computing device may include a PC, a laptop computer, a smart phone, a PDA, or a device similar thereto.

For example, a computing device used in an embodiment of the present invention may include a transceiver, a control unit, a 3D model generator, a shadow image generator, a power generation efficiency calculator, an installation guide model generator, and a database.

First, the transmission/reception unit is a component that obtains image information from an unmanned aerial vehicle through wired/wireless communication. In addition, the transmission/reception unit may be a component that transmits a control signal of a control unit described below to the unmanned aerial vehicle.

Meanwhile, the control unit is a component that controls other components of the computing device or the unmanned aerial vehicle in response to an input received from a user through an input unit connected to the computing device. Here, the input unit may include an input means used by the user to control the computing device. For example, the input unit may be provided with a mouse, keyboard, touch screen, UI provided to the user, GUI, etc.

Meanwhile, the 3D model generator models a 3D space model based on image information. For example, the 3D model generator may be a program or application programmed to generate a 3D space model based on image information or a storage medium recording such a program or application. Here, the 3D space model may be a model in which a space photographed in an image is implemented as a 3D model.

Meanwhile, the 3D model generating unit may be provided to acquire image information received by the transmitting/receiving unit from the transmitting/receiving unit. Here, the image information refers to information including information about an image captured by an image acquisition unit, which will be described later. For example, the image information is a plurality of photos, and the 3D model generating unit may be provided to generate a 3D space model based on the plurality of photos. Alternatively, the image information is a video, and the 3D model generating unit may be provided to generate a 3D space model based on the video.

In addition, the 3D model generating unit may generate and arrange a solar panel model on a 3D space model in response to a user's input. Here, the solar panel model is a 3D model of the solar panel, and the number of solar panel models to be disposed and the position where the solar panel models are disposed may be set by a user.

Meanwhile, the 3D model generating unit generates an evaluation model including a 3D space model and a solar panel model added by a user, and transmits it to the shade image generating unit. Here, the evaluation model is a 3D model in which the number of photovoltaic panel models set by the user are arranged in positions set by the user on the 3D space model. At this time, if the user does not add a solar panel model, the evaluation model may be the same as or similar to the 3D space model.

Meanwhile, the shade image generation unit obtains information about the evaluation model from the 3D model generation unit and generates a shadow image when virtual sunlight is irradiated on the evaluation model. For example, the shadow image generation unit may include a physics engine programmed to output an image when sunlight is irradiated on the evaluation model. For example, the shaded image generating unit is a program or application programmed to simulate a situation in which sunlight is irradiated with a specific incident angle based on an evaluation model and generate a shaded image based on this, or a storage medium recording such a program or application. can be

On the other hand, the power generation efficiency calculation unit calculates solar power generation efficiency using a plurality of shaded images and solar radiation data. For example, the power generation efficiency calculation unit is a program or application programmed to calculate solar power generation efficiency, or such a program or application. It may be a recording medium.

Specifically, the power generation efficiency calculation unit may be set to generate calculation data including information on photovoltaic power generation efficiency at each point of the evaluation model based on a plurality of shadow images and solar radiation data.

More specifically, the power generation efficiency calculation unit is based on average solar radiation information of a specific point calculated based on pixel values and solar radiation data of pixels representing a specific point in a plurality of shaded images and the pixel value of the brightest pixel in a plurality of shaded images. Calculate the generation efficiency for a specific point based on the peak insolation information determined by .

On the other hand, the installation guide model generation unit is a component that generates an installation guide model that visually expresses a point where the photovoltaic power generation efficiency is greater than or equal to a threshold value based on the calculation data generated by the generation efficiency calculation unit.

For example, the installation guide model generation unit may be a program or application programmed to generate an installation guide model based on operation data, or a storage medium recording such a program or application.

Meanwhile, the installation guide model may be an evaluation model, a shaded image, a separate 3D model, and/or a model in which a point where the photovoltaic power generation efficiency is equal to or higher than a threshold is displayed in a separate image.

On the other hand, the database is a component in which pre-measured solar radiation data, pre-generated 3D model data, etc. are recorded.

Here, the pre-measured insolation data is data including insolation values pre-measured by the user in the evaluation space. In this case, the evaluation space may mean a space including a place where the solar panel installation is planned.

Specifically, the solar radiation data may include information on a plurality of solar radiation values measured for a predetermined period and/or according to a predetermined criterion for the evaluation space by a user or a third party. In addition, solar radiation data may include information on solar radiation values measured in the sunny part of the evaluation space and information on solar radiation values measured in the shaded part at the same time.

For example, the user may obtain insolation data by measuring insolation values in a sunny part and a shaded part 7 times a day representing each month for a year. In this case, the 7 measurement intervals may be, for example, an interval dividing a day into 7 equal parts.

In addition, the 3D model data generated in advance here includes information on the 3D model generated by the 3D model generator based on the image information on the evaluation space or information on the 3D model of the evaluation space obtained in other ways. can do.

Meanwhile, in the above description, the transmission/reception unit, the control unit, the 3D model generation unit, the shadow image generation unit, the generation efficiency calculation unit, the installation guide model generation unit, and the database are classified according to their functions, but in reality, they can be provided by one processing unit. there is. Alternatively, two or more elements of the transmission/reception unit, the control unit, the 3D model generation unit, the shadow image generation unit, the generation efficiency calculation unit, the installation guide model generation unit, and the database may be provided by one processing unit. Alternatively, the transmission/reception unit, the control unit, the 3D model generator, the shadow image generator, the power generation efficiency calculator, the installation guide model generator, and the database may be provided using a plurality of computing devices.

Meanwhile, an unmanned aerial vehicle (UAV) may be used in the method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention. Unmanned aerial vehicles, for example, can be drones of various sizes.

On the other hand, the unmanned aerial vehicle may be equipped to capture an image, including an image acquisition unit. Here, the image acquisition unit may be a component including a device for capturing an image. For example, the image acquisition unit may include a camera that captures an image.

Meanwhile, the unmanned aerial vehicle may further include a transceiver capable of communicating with the computing device in a wired or wireless manner. The unmanned aerial vehicle may transmit image information to a computing device using a transceiver or receive a control signal corresponding to an input of an input unit from the computing device to receive control of take-off and landing, flight direction, start and stop of shooting, and the like.

Hereinafter, the present invention will be described with reference to drawings for explaining a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention.

First, FIG. 1 is a flowchart of a method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention.

As shown in FIG. 1, the method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention includes loading a 3D space model (S11) and obtaining a plurality of shaded images (S12). ), solar power generation efficiency is calculated (S13), solar power generation efficiency is calculated, calculation data is obtained (S14), and installation guide models are obtained (S15).

First, in the step of loading the 3D space model (S11), the 3D space model for the evaluation space is loaded. Here, the evaluation space may mean a space including a place where a user plans to install a solar panel.

For example, in the step of loading the 3D space model (S11), the computing device loads the 3D space model from a database or a 3D model generator in response to a user's input. Alternatively, in the step of loading the 3D space model (S11), the 3D space model may be loaded by a program or application installed in the computing device (hereinafter, 'program, etc.').

Meanwhile, in the step of loading the 3D space model (S11), a computing device, program, etc., and/or a 3D model generator generates an evaluation model using the loaded 3D space model.

Meanwhile, in step S12 of generating a plurality of shaded images, the shaded image generator obtains an evaluation model and generates a plurality of shaded images based on the evaluation model.

For better understanding, first, FIG. 2 will be described. FIG. 2 is a diagram showing a plurality of shaded images obtained in this step. Specifically, each of the 7 shaded images shown in FIG. 2 may be a shaded image generated at intervals dividing a day into 7 equal parts. Alternatively, the seven shaded images may be a shaded image representing a time corresponding to a time when a user measures a solar radiation value to obtain solar radiation data.

Specifically, the shaded image may be an image visually expressing a shaded part and a positive part generated in the evaluation model according to the incident angle of sunlight. Also, at this time, a plurality of shaded images may be generated corresponding to a plurality of incident angles of sunlight (see FIG. 2, each shaded image shown in FIG. 2 is a shaded image obtained according to different incident angles of sunlight).

For example, each of the plurality of shaded images may be a shaded image representing a specific time period. For example, the computing device or program may receive information about the latitude and longitude of the evaluation space and time from the user, and the shaded image generating unit may be provided to generate a shaded image representing the inputted time based on the inputted information. there is.

In this step in more detail, the shaded image generator generates a plurality of shaded images according to a plurality of incident angles of sunlight that are distinguished by a difference of at least one of sun azimuth and sun altitude.

For example, the shadow image generation unit sets the sun azimuth and sun altitude based on the input time, latitude and longitude, determines the incident angle of sunlight based on this, and simulates the irradiation of sunlight according to the incident angle determined in the evaluation model. By doing so, it is possible to generate a shadow image representing the input times.

Meanwhile, a composition of the generated shaded image may be a composition preset by a user. In addition, intervals of specific time zones represented by a plurality of shaded images may be set by the user. For example, the interval of a specific time period may be an interval dividing a year by a predetermined criterion. In this case, the solar power generation efficiency calculated based on the plurality of shaded images becomes the annual average solar power generation efficiency of the corresponding point.

Meanwhile, in step S13 of calculating the photovoltaic power generation efficiency, the photovoltaic power generation efficiency for specific points of the evaluation model is calculated based on a plurality of shadow images.

Specifically, in this step, the generation efficiency calculation unit determines the solar radiation for the corresponding point based on the pixel values of pixels representing the same point of the evaluation model in each of the plurality of shaded images, solar radiation data, and the pixel value of the brightest pixel in the plurality of shaded images. Calculate photovoltaic efficiency. In more detail, in this step, the photovoltaic power generation efficiency for a specific point is calculated based on the average solar radiation information and the maximum solar radiation information at the specific point.

To this end, the power generation efficiency calculation unit obtains a plurality of shaded images from the shaded image generator and receives insolation data measured by the user in advance in the evaluation space from the database.

Meanwhile, the pixel value may be a value representing a color value of a pixel of a shaded image. Specifically, the pixel value may be a value representing chromaticity (HUE). For example, the pixel value may be a value determined based on R, G, and B values of the pixel.

Meanwhile, here, the pixel value of the brightest pixel may mean the pixel value of the pixel closest to white. That is, the pixel value of the brightest pixel may be the pixel value of the brightest color pixel or the pixel having the brightest color value. For example, when all RGB values are 255 and the color of a pixel is white, the brightest pixel has the largest (highest) value of the sum of each RGB value among pixels included in a plurality of shaded images. may be pixels. For ease of understanding, for example, the first pixel has an R value of 200, the G value is 100, the B value is 150, and the sum is 450, and the second pixel has an R value of 190, the G value is 110, and the B value is 200, and the sum is 500. In this case, since the pixel value or color value of the second pixel is higher than that of the first pixel, the second pixel may be determined as a brighter pixel.

On the other hand, whether it is the same point here can be grasped by coordinates on the evaluation model (hereinafter, model coordinates). Specifically, pixels representing a part having the same model coordinates in each shaded image are pixels representing the same point of the above-described evaluation model.

Meanwhile, at this time, the shaded image generator may generate pixels located at the same coordinates (hereinafter referred to as image coordinates) of the plurality of shaded images to represent the same point (point with the same model coordinates) of the evaluation model (see FIG. 2 ). Also, at this time, the power generation efficiency calculation unit calculates average solar radiation information for a specific point on the evaluation model corresponding to the corresponding image coordinates by using pixel values of pixels located at the same image coordinates in a plurality of shaded images.

Specifically, the power generation efficiency calculation unit may calculate average solar radiation information at a corresponding point based on pixel values and solar radiation data of pixels having the same image coordinates in a plurality of shaded images. For example, in the case of FIG. 2, the power generation efficiency calculation unit calculates the average solar radiation information of the point shown in (a, b) based on the solar radiation data and 7 pixel values located at the coordinates of (a, b) in the seven shaded images. calculate

Specifically, the power generation efficiency calculation unit calculates the photovoltaic power generation efficiency for a specific point using Equation 1 below.

(Equation 1)

'는 복수의 음영이미지에서 특정 지점을 나타내는 픽셀들의 픽셀값 및 일사량데이터를 기반으로 연산되는 평균일사량정보이다.here, '

' is average solar radiation information calculated based on pixel values and solar radiation data of pixels representing a specific point in a plurality of shaded images.

'는 복수의 음영이미지에서 가장 밝은 픽셀의 픽셀값을 기반으로 판단되는 최고일사량정보이다. 예를 들어 최고일사량정보는 가장 밝은 색의 픽셀의 픽셀값 그 자체로 구비될 수 있다.also, '

' is the highest insolation information determined based on the pixel value of the brightest pixel in the plurality of shaded images. For example, the peak solar radiation information may be provided as the pixel value itself of the brightest color pixel.

Meanwhile, the power generation efficiency calculation unit calculates average solar radiation information using Equation 2 below to calculate solar power generation efficiency.

(Formula 2)

Here, n is the number of plural shadow images used in the calculation. As described above, each of the n shaded images may be an image representing a specific time period.

In addition, sun is a subscript indicating the case where a specific point where the solar power generation efficiency is calculated is a positive part. In addition, shadow is a subscript indicating the case where a specific point where the solar power generation efficiency is calculated is a shaded part.

Also, here, δ is a variable having a value of 0 when a specific point is a positive part and a value of 1 when a specific point is a negative part.

는 일사량데이터로부터 획득되는, 일사량값을 기반으로 연산된 시간 t일 때 양지부분의 상대일사량이다. 구체적으로

는, 시간 t일 때, 사용자가 평가공간의 양지부분에서 미리 측정한 일사량값과 최고일사량값과의 비율이다. 예를 들어,

는 상기 양지부분에서 미리 측정한 일사량값을 최고일사량값으로 나눈 값일 수 있다. 여기서 최고일사량값은 미리 측정된 일사량값 중 최고값을 가진 일사량값일 수 있다.Also, here

is the relative insolation of the sunny part at the time t calculated based on the insolation value obtained from the insolation data. Specifically

is the ratio between the solar radiation value pre-measured by the user in the sunny part of the evaluation space and the highest solar radiation value at time t. for example,

May be a value obtained by dividing the insolation value previously measured in the sunny part by the maximum insolation value. Here, the maximum solar radiation value may be a solar radiation value having the highest value among previously measured solar radiation values.

는 일사량데이터로부터 획득되는, 일사량값을 기반으로 연산된 시간t일 때 음지부분의 상대일사량이다. 구체적으로

는, 시간 t일 때, 사용자가 평가공간의 음지부분에서 미리 측정한 일사량값과 최고일사량값과의 비율이다. 예를 들어,

는 상기 음지부분에서 미리 측정한 일사량값을 최고일사량값으로 나눈 값일 수 있다.Also, here

is the relative insolation of the shaded area at time t calculated based on the insolation value obtained from the insolation data. Specifically

is the ratio between the solar radiation value pre-measured by the user in the shaded part of the evaluation space and the maximum solar radiation value at time t. for example,

May be a value obtained by dividing the insolation value previously measured in the shaded area by the maximum insolation value.

는 태양광발전효율을 연산하는 지점이 양지 부분일 경우, 해당 지점의 시간 t일 때의 픽셀값이다. 구체적으로

는, 태양광발전효율을 연산하는 특정 지점이 시간 t에서 양지일 경우, 시간 t를 대표하는 음영이미지에서 특정 지점을 나타내는 픽셀의 픽셀값이다.Also, here

is a pixel value at time t of the corresponding point when the point where the solar power generation efficiency is calculated is the sunny part. Specifically

Is a pixel value of a pixel representing a specific point in the shaded image representing time t, when the specific point for calculating the photovoltaic efficiency is sunny at time t.

는 태양광발전효율을 연산하는 지점이 음지 부분일 경우, 해당 지점의 시간 t일 때의 픽셀값이다. 구체적으로

는, 태양광발전효율을 연산하는 특정 지점이 시간 t에서 음지일 경우, 시간 t를 대표하는 음영이미지에서 특정 지점을 나타내는 픽셀의 픽셀값이다.Also, here

is a pixel value at time t of the corresponding point when the point where the solar power generation efficiency is calculated is a shaded part. Specifically

Is a pixel value of a pixel representing a specific point in a shaded image representing time t, when a specific point for calculating solar power generation efficiency is negative at time t.

Meanwhile, the above-described relative insolation may be calculated after the power generation efficiency calculation unit loads insolation data. Meanwhile, the insolation values used in Equation 2 may be obtained by measuring in advance by the user in the evaluation space. The user may pre-record solar radiation data including information on measured values in a database so that the power generation efficiency calculator can load the solar radiation data.

On the other hand, in the step (S14) of obtaining the calculation data obtained by calculating the photovoltaic power generation efficiency, the power generation efficiency calculation unit calculates the photovoltaic power generation efficiency for all points (all image coordinates) included in the shaded image and calculates based on this. generate data

Specifically, in this step, the solar power generation efficiency for each point of the evaluation model may be calculated by repeating the process of calculating the photovoltaic power generation efficiency for a specific point by the power generation efficiency calculation unit.

When the power generation efficiency calculation unit completes the calculation of solar power generation efficiency for each point of the evaluation model, it can generate calculation data using a dataset including the corresponding information and record it in a database.

Meanwhile, in step S15 of acquiring the installation guide model, the installation guide model generation unit generates the installation guide model based on the operation data. Here, the installation guide model is a model in which the point where the photovoltaic power generation efficiency exceeds the critical value is displayed in the evaluation space. To this end, the installation guide model generation unit may obtain operation data from a database or power generation efficiency calculation unit. Meanwhile, the threshold value may be input in advance from the user.

On the other hand, the installation guide model generation unit displays the point where the photovoltaic power generation efficiency is above the threshold value in the evaluation model, the shaded image, the separate 3D model and/or the separate image using the operation data, and displays it to the user as the installation guide model. can provide For example, a computing device or program may display an installation guide model on a screen of the computing device.

Referring to FIGS. 3 to 6 for better understanding, FIG. 3 is a view showing an installation guide model displaying the points where the photovoltaic efficiency is 75% or more, and FIG. 4 is the point where the photovoltaic power generation efficiency is 76% or more. 5 is a view showing an installation guide model showing points with solar power generation efficiency of 77% or more, and FIG. 6 is a diagram showing points with solar power generation efficiency of 78% or more. It is a drawing showing an installation guide model.

As shown in FIGS. 3 to 6 , the installation guide model generation unit may generate an installation guide model in which a point where the photovoltaic efficiency is equal to or higher than a critical value is indicated (H) in the evaluation model.

A method of visually distinguishing a point where the photovoltaic power generation efficiency is equal to or higher than the threshold value by the installation guide model generator may be selected in various ways. For example, a method of overlapping the corresponding part with a color set by the user or overlapping hatching lines to distinguish the corresponding part from other parts may be used.

On the other hand, Figure 7 is a method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention, the step of adding a solar panel model and the step of positioning the solar panel model at a predetermined angle with respect to the ground It is a flowchart for the case of further including.

As shown in FIG. 7, the method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention is the step of adding a solar panel model (S21) and the solar panel model is determined relative to the ground It may further include a step (S22) of positioning to be at an angle.

First, in the step of adding a solar panel model (S21), a user adds at least one solar panel model to a predetermined location of a 3D space model using a computing device or program. In this step, the 3D model generating unit responds to the user's input and adds a solar panel model to the 3D space model.

For example, in this step, the user can use the input unit to set the number of added solar panel models, the position of each solar panel model on a 3D space model, and the direction the solar panel model looks at.

Meanwhile, in step S22 in which the solar panel model is positioned to have a predetermined angle with respect to the ground, the added solar panel model is positioned to have a predetermined angle with respect to the ground of the 3D space model.

For example, in this step, the user may input a predetermined angle through the input unit. When a predetermined angle is input, the 3D model generation unit adjusts the installation angle of the solar panel model so that the surface portion of the solar panel model has a predetermined angle with respect to the ground of the 3D space model.

On the other hand, when steps S21 and S22 are further included, in step S12 of obtaining a plurality of shaded images, a plurality of shaded images are generated based on the evaluation model in which at least one solar panel model is added to the 3D space model. . In addition, in this case, in step S13 of calculating the solar power generation efficiency, the solar power generation efficiency for each point of the evaluation model is calculated based on the evaluation model in which at least one solar panel model is added to the 3D space model. In addition, in this case, in step S14 in which calculation data obtained by calculating solar power generation efficiency is obtained, solar power generation efficiency information for each point based on an evaluation model in which at least one solar panel model is added to a 3D space model Operation data including is obtained.

In addition, in this case, in the step of acquiring the installation guide model (S17), the photovoltaic efficiency at each point of the 3D space model is greater than the threshold value and the photovoltaic efficiency at each point of the added solar panel model is greater than the threshold value Points are displayed to visually distinguish them.

In addition, at this time, the installation guide model generation unit may visually display the location of the solar panel model located on the installation guide model so that the user can intuitively grasp the location. For example, the installation guide model generating unit may display a circle around the position of the solar panel as shown in FIGS. 3 to 6 (C). However, the present invention is not limited thereto, and a method of displaying the position of the solar panel model in the installation guide model may be variously selected.

On the other hand, FIG. 8 is a case in which the method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention further includes obtaining the photovoltaic power generation efficiency of the solar panel model for a plurality of predetermined angles. It is a flow chart.

As shown in FIG. 8, the method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention includes a step (S23) of obtaining the solar power generation efficiency of a solar panel model for a plurality of predetermined angles. can include more.

In this step (S23), the user changes the predetermined angle using a computing device, and operation data for a plurality of predetermined angles of the solar panel model is obtained. For example, in this step, if the user additionally inputs at least one predetermined angle, the 3D model generator may generate at least one evaluation model corresponding to the input predetermined angles based on this. Meanwhile, in this step, the shaded image generator generates a plurality of shaded images based on the newly generated evaluation models, and the power generation efficiency calculator acquires operation data based on the shaded images.

That is, in this step, for each predetermined angle received from the user, the computing device or program changes the predetermined angle and obtains operation data (S22 to S14) repeatedly to obtain operation data for a plurality of predetermined angles. do.

On the other hand, in the case of including step S23, in step S15 of obtaining an installation guide model, a plurality of installation guide models matching each of a plurality of predetermined angles are obtained.

Specifically, in this case, in step S15, the installation guide model generation unit generates a plurality of installation guide models displaying the parts where the photovoltaic power generation efficiency exceeds the threshold value in the solar panel models arranged at different angles, based on the operation data. do.

Referring to FIGS. 3 to 6 for better understanding, the plurality of installation guide models shown in FIGS. 3 to 6 have installation angles of 15 degrees and 30 degrees, respectively, in a clockwise direction from the upper left corner of the solar panel model. It is an installation guide model in the case of 45 degrees and 60 degrees.

Meanwhile, FIG. 9 is a flowchart illustrating a case in which the method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention further includes receiving a threshold value different from a pre-input threshold value from a user.

As shown in FIG. 9 , the method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention may further include receiving a threshold value different from a pre-input threshold value from a user (S31). there is.

In this step, the user may input a threshold value different from the existing threshold value through the input unit of the computing device. At this time, if another threshold value is input, the installation guide model displays a point having a photovoltaic power generation efficiency equal to or higher than the newly input threshold value based on the operation data and the input threshold value, and an installation guide model is generated.

3 to 6 for better understanding, when the user initially inputs 75% as the threshold value and then additionally inputs 76%, 77%, and 78%, in the evaluation model in step S15. An installation guide model showing the point where the photovoltaic power generation efficiency is 75% or more is obtained (see FIG. 3), and then, in step S31, an installation guide model showing the point where the photovoltaic power generation efficiency is 76%, 77%, or 78% or more is obtained, respectively. It can be (see Figs. 4 to 6).

Meanwhile, in the above example, the user initially inputs one threshold value, but is not limited thereto, and the user may input a plurality of threshold values at or before step S15, in this case In step S15, a plurality of installation guide models may be obtained in response to the plurality of input threshold values. For example, if 75% and 78% were initially input, in step S15, the first installation guide model marked the point with the solar power generation efficiency of 75% or more in the evaluation model and the solar power generation efficiency of 78% or more in the evaluation model. A second installation guide model indicating a point having can be obtained.

Meanwhile, FIG. 10 shows a case where the method for recommending an installation position and an installation angle of a solar panel according to an embodiment of the present invention further includes obtaining image information about an evaluation space and generating a 3D space model. It is a flow chart for

As shown in FIG. 10, the method for recommending the installation position and installation angle of a solar panel according to an embodiment of the present invention includes obtaining image information about an evaluation space (S41) and generating a 3D space model ( S42) may be further included.

First, in step S41 of acquiring image information about the evaluation space, the unmanned aerial vehicle acquires image information about the evaluation space. Specifically, in this step, the unmanned aerial vehicle flies around the place where the solar panel is planned to be installed, and the image is captured using the image acquisition unit.

For example, the unmanned aerial vehicle may photograph the evaluation space while flying over the evaluation space along a flight path set by the user. For example, the user may set the flight path to maintain a predetermined distance from a point in the evaluation space. Alternatively, the unmanned aerial vehicle may be remotely controlled by a computing device to fly and photograph the evaluation space.

In this step, image information including information about images captured by the unmanned aerial vehicle may be transmitted to the computing device in a wired or wireless manner. The transmitted image information may be stored in a database or loaded into a 3D model generator, for example.

Meanwhile, in the step of generating a 3D space model (S42), the 3D model generator generates a 3D space model by receiving image information from the unmanned aerial vehicle or loading image information recorded in a database. The 3D model generator may store the generated 3D space model in a database.

In this case, in step S11 of loading the 3D space model, the computing device may load the 3D space model created in step S42.

On the other hand, the embodiments of the present invention determine the solar power generation efficiency considering the topography of the evaluation space, the installation angle of the solar panel, the incident angle of sunlight, etc., so there is an advantage in that the solar power generation efficiency can be more accurately evaluated.

Those skilled in the art to which the present invention pertains will understand that the present invention can be embodied in other specific forms without changing its technical spirit or essential features. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. do.

H: The part where the photovoltaic power generation efficiency is above the critical value
C: The part where the solar panel model is installed

Claims (10)

loading a 3D space model for an evaluation space, which is a space including a place where solar panels are planned to be installed;
Acquiring a plurality of shaded images in which a shaded part and a positive part generated in an evaluation model including the 3D space model are visually expressed according to a plurality of incident angles of sunlight;
Based on pixel values of pixels representing the same point of the evaluation model in each of the plurality of shaded images, solar radiation data previously measured in the evaluation space, and pixel value of the brightest pixel in the plurality of shaded images, Step of calculating the photovoltaic power generation efficiency;
Obtaining calculation data obtained by calculating the photovoltaic efficiency for each point of the evaluation model expressed in the plurality of shaded images by repeating the process of calculating the solar power generation efficiency; and
Acquiring an installation guide model displayed so that a point at which the photovoltaic power generation efficiency is greater than or equal to a threshold value in the evaluation space is visually distinguished based on the operation data;
In the step of calculating the photovoltaic power generation efficiency,
The photovoltaic power generation efficiency for a specific point of the evaluation model is

It is calculated using the formula of
Remind here '

' is the average solar radiation information of the specific point calculated based on the pixel values of pixels representing the specific point in the plurality of shaded images and the solar radiation data,
remind '

' is the highest insolation information determined based on the pixel value of the brightest pixel, and a method for recommending the installation position and installation angle of the solar panel. According to claim 1,
The evaluation model further includes at least one solar panel model,
Adding at least one solar panel model to a predetermined position of the 3D space model; further comprising a solar panel installation position and installation angle recommendation method. According to claim 2,
Further comprising the step of positioning the solar panel model at a predetermined angle with respect to the ground of the 3D space model; a method for recommending an installation position and an installation angle of a solar panel. According to claim 3,
Further comprising obtaining photovoltaic power generation efficiency of each point of the solar panel model for a plurality of predetermined angles by repeating the process of obtaining the operation data while changing the predetermined angle,
In the step of acquiring the installation guide model, a plurality of installation guide models matching each of the plurality of predetermined angles are obtained, a method for recommending an installation position and an installation angle of a solar panel. delete According to claim 1,
Each of the plurality of shaded images represents a specific time period,
The average solar radiation information of the specific point,

It is calculated using the formula of
Here, 'n' is the number of the plurality of shaded images, and the 'n' is the number of the plurality of shadow images.

' has a value of 0 when the specific point is a positive part and has a value of 1 when the specific point is a negative part, and the '

' is the ratio between the measured solar radiation value at time t in the positive part of the evaluation space obtained from the solar radiation data and the highest value among the measured solar radiation values that can be obtained from the solar radiation data, '

' is the ratio between the measured solar radiation value at time t in the shaded part of the evaluation space obtained from the solar radiation data and the highest value among the measured solar radiation values that can be obtained from the solar radiation data, '

' is a pixel value for a specific point in the shaded image representing time t when the specific point is a positive part, '

' is a pixel value for a specific point when the specific point is a shaded part in the shaded image representing time t, a method for recommending the installation position and installation angle of the solar panel. According to claim 6,
A plurality of images representing the specific time period,
In the step of acquiring the plurality of shaded images, the shaded part and the positive part generated in the evaluation model according to a plurality of incident angles of sunlight distinguished by a difference of at least one of a solar azimuth and a solar altitude are visually expressed and obtained , Installation location and installation angle recommendation method of solar panels. According to claim 6,
The interval of a specific time period represented by the plurality of shaded images divides the year by a predetermined standard,
The photovoltaic power generation efficiency is an annual average photovoltaic power generation efficiency, a method for recommending an installation location and an installation angle of a solar panel. According to claim 1,
obtaining image information about the evaluation space using an unmanned aerial vehicle (UAV); and
Further comprising: generating the 3D space model based on the image information;
In the step of loading the 3D space model, the 3D space model generated in the step of generating the 3D space model is loaded, the installation position and installation angle recommendation method of the solar panel. According to claim 1,
The installation guide model,
Acquired by visually distinguishing a point where the photovoltaic power generation efficiency is greater than or equal to a threshold value in the evaluation space on the evaluation model. Installation location and installation angle recommendation method for solar panels.

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