JP2003242232A - Peripheral environment information acquiring method and device and electric energy estimating method for photovoltaic power generating system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reliably estimate peripheral environment information such as sunshine duration without actually visiting a site for survey. <P>SOLUTION: When an address of a point to be used as a base point is inputted in an address inputting means 1, a peripheral environment information acquiring means 3 searches a map data base 4 and it acquires peripheral environment data 5 including information such as shapes of buildings. A building shape calculating means 6 calculates shapes of buildings around the base point affecting sunshine on the basis of the peripheral environment data 5, and it outputs building shape data 7. A sunshine duration calculating means 8 calculates sunshine duration data 9 in consideration of time shadowed by adjacent buildings on the basis of the building shape data 7, and it outputs it for electric energy calculation of the photovoltaic power generating system by an electric energy calculating means 10. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a surrounding environment information acquisition method and apparatus for acquiring information on the surrounding environment at a specific point such as sunshine duration data, and a power generation amount estimation method for a photovoltaic power generation system.

[0002]

2. Description of the Related Art Conventionally, when considering whether to install a solar power generation system in a house or the like, the amount of power generation is estimated to evaluate the economic efficiency. The amount of power generated by the solar power generation system is related to the amount of sunlight that is applied to the solar power generation system. The irradiation amount of sunlight changes depending on the position conditions on the earth such as latitude and the weather conditions. Regarding the contribution of the position condition to the irradiation amount of sunlight, it is possible to perform a simulation based on the celestial motion between the sun and the earth.
Changes in the irradiation amount of sunlight due to weather conditions are statistically estimated based on past meteorological observation data.

When the point where the solar power generation system is installed is specified, the irradiation amount of sunlight at the position of the point is calculated and corrected based on the weather condition, so that the point is actually irradiated. It is possible to accurately estimate the irradiation amount of sunlight. However, this estimated value is an ideal case, and when considering the installation in an actual house, etc., the irradiation amount is shaded due to the shadow of buildings and topography such as other houses existing in the vicinity. It must be considered that it will decrease.

[0004]

When estimating the power generation amount of photovoltaic power generation, it is necessary to consider the shadowing effect in the surrounding environment. If the estimated value of the ideal sunshine condition varies depending on the location under the surrounding conditions, the expected power generation amount cannot be obtained. The user of the solar power generation system is dissatisfied with the expected amount of power generation because the sunshine conditions vary depending on the location. In order to prevent differences in sunshine hours depending on the location from causing user dissatisfaction, estimate the amount of power generation before the installation of the solar power generation system, taking into consideration the influence of sunshine conditions from the surroundings. I need to put it.

However, in the past, it has been necessary to visit the site and conduct a field survey in order to investigate the surrounding environment such as buildings and objects that may cause a reduction in the irradiation dose. In addition, without conducting a field survey, only the simulation of power generation capacity will be performed without considering the factors that cause shadows, such as buildings and objects in the surrounding environment. In this case, as described above, it causes the user's dissatisfaction.

An object of the present invention is to provide a surrounding environment information acquisition method and apparatus capable of performing highly reliable estimation without actually going to a field survey, and a power generation amount estimation method for a solar power generation system. That is.

[0007]

SUMMARY OF THE INVENTION According to the present invention, geographical information including information about buildings is stored in a database in advance for an area for which surrounding environment information is to be acquired, and the surrounding environment information is acquired. Based on the address of the right place,
A neighborhood characterized by searching a stored database, obtaining geographical information about the neighborhood of the address, and obtaining surrounding environment information about the point by a calculation process using the obtained geographical information. This is a method of acquiring environmental information.

According to the present invention, for example, for the area where the surrounding environmental conditions such as sunshine conditions should be acquired,
Geographical information including information about buildings is stored in a database in advance. When acquiring surrounding environment information at a point in the area, a database that is stored based on the address at that point is searched, and geographical information about the vicinity of the address is acquired, so you do not have to go to a field survey. , Can obtain geographical information. The surrounding environment information such as sunshine conditions is acquired by arithmetic processing using the acquired geographical information, so accurate and reliable surrounding environment information including the influence of buildings in the surrounding environment is acquired. be able to.

Further, according to the present invention, a geographical information accumulating means for accumulating geographical information including information about buildings in advance in a database and accumulating the surrounding environment information for the area where the surrounding environment information is obtained. Based on the address input means for inputting the address of the power point and the address input to the address input means, peripheral information acquisition means for searching the geographical information storage means and acquiring geographical information about the periphery of the address. And a surrounding environment information calculating unit that obtains surrounding environment information about the point by a calculation process using the acquired geographical information.

According to the present invention, for example, regarding the area for which the surrounding environmental conditions such as the sunshine conditions should be acquired,
Geographical information including information about the building is made into a database in advance and stored in the geographical information storage means. When acquiring the surrounding environment information at a point in the area, enter the address of the point in the address input means, and the peripheral information acquisition means searches the geographical information storage means based on the address entered in the address input means. However, since the geographical information about the neighborhood of the address is acquired, the geographical information can be acquired without going to the field survey. The surrounding environment information such as the sunshine conditions is acquired by the calculation processing of the surrounding environment information calculating means that uses the acquired geographical information, so that it is accurate and highly reliable, including the influence of buildings in the surrounding environment. The surrounding environment information can be acquired.

Further, according to the present invention, geographical information including information about buildings is stored in a database in advance for the area to be estimated, and the information is accumulated based on the address of the point to be estimated. Search the database,
Geographical information about the vicinity of the address is acquired, sunshine duration data for the point is generated by arithmetic processing using the acquired geographical information, and the generated sunshine duration data is used for the point. A power generation amount estimation method for a solar power generation system, which is characterized by calculating a power generation amount when a solar power generation system is installed.

According to the present invention, when estimating the amount of power generated by the solar power generation system, geographical information including information about buildings is previously compiled into a database for the area for which the sunshine condition is to be acquired. Accumulate. When acquiring geographical information about the surroundings at a point in the area, search the database accumulated based on the address of the point and acquire the geographical information about the surroundings of the address. Even without it, geographical information can be obtained. Since the sunshine duration data is generated by arithmetic processing using the acquired geographical information, it is possible to obtain the sunshine duration data with high accuracy and reliability including the influence of surrounding buildings. Since the amount of power generated by the solar power generation system is calculated using the generated sunshine duration data, it is possible to perform highly accurate estimation, including the effects of surrounding buildings.

Further, in the invention, it is characterized in that the information about the building includes an azimuth, a distance, and a shape of the building which may be obstacles to sunshine, with the point as a base point.

According to the present invention, the information about the building which is stored in the database as the geographical information includes the azimuth, the distance and the shape of the building which may be a hindrance to the sunshine, based on the point where the power generation amount should be estimated. Therefore, it is possible to simulate the change in the position of the sun and calculate the correct sunshine time.

The present invention is also characterized in that the shape is estimated to be a standard shape preset according to the type of building.

According to the present invention, the shape of the building is estimated to be a standard shape preset according to its type. Therefore, for example, a general house is simulated as a standard shape by sunshine simulation. Even if the detailed shape information is not obtained, highly reliable estimation can be performed.

Further, in the present invention, the shape is estimated to be a shape according to a building coverage ratio and a floor area ratio permitted in an area including the point.

According to the present invention, the shape of the building is estimated to be a shape according to the building coverage ratio and the floor area ratio permitted in the area including the point where the power generation amount is estimated. There is a high possibility that they match, and highly accurate estimation can be performed.

Further, the present invention is a program for causing a computer to execute the power generation amount estimation method for a photovoltaic power generation system described in any one of the above.

According to the present invention, it is possible to operate the computer to estimate the power generation amount with high reliability for the solar power generation system.

Furthermore, the present invention is a computer-readable recording medium in which a program for causing a computer to execute the power generation amount estimation method for the photovoltaic power generation system described in any of the above is recorded.

According to the present invention, it is possible to cause a computer to read a program and estimate the power generation amount with high reliability for the solar power generation system.

[0023]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a schematic configuration for estimating the amount of power generation of a solar power generation system by acquiring surrounding environment information as one embodiment of the present invention. In the following, as the surrounding environment information, the sunshine conditions on the building as the base point will be described, but other information such as noise and ventilation can also be targeted. The surrounding environment information is acquired by inputting the address of the building serving as the base point into the address input means 1. When the address is input to the address input means 1, the address data 2 is output from the address input means 1. The surrounding environment information acquisition means 3 uses the address data 2 to create a map database (hereinafter sometimes abbreviated as “map DB”) 4
The peripheral environment data 5 of the building serving as the base point is acquired from. The building shape calculation means 6 uses the surrounding environment data 5 to calculate the shapes of buildings and objects existing in the surrounding environment of the base point, and outputs building shape data 7 as the calculation result. The sunshine duration calculation means 8 calculates the sunshine duration of the building as the base point using the building shape data 7, and outputs the sunshine duration data 9 as the calculation result. The power generation amount calculation means 10 uses the sunshine duration data 9 to calculate the power generation amount of the solar power generation system.

FIG. 2 shows a schematic procedure of acquiring the sunshine duration as the surrounding environment information and estimating the power generation amount of the solar power generation system in the embodiment of FIG. First, in step S1, the address of the house as the base point is input to the address input means 1 and the address data 2 is output. However, the address to be input is not limited to the direct input of an accurate address, but may be information that can specify the place serving as the base point, such as a telephone number, and is not necessarily an address.

FIG. 3 shows an example of the address data 2 shown in FIG.
Since the address data 2 includes a telephone number and the same telephone number should not be included in different addresses, if the telephone number is input, the address data 2 including the telephone number is included.
Can be searched and output in association with an accurate address. Next, in step S2 of FIG. 2, the surrounding environment information acquisition unit 3 acquires the surrounding environment data of the house from the map database 4 by using the address data 2, and outputs the result as the surrounding environment data 5. .

FIG. 4 shows an example of contents acquired from the map database 4 as surrounding environmental data. The house 20 as the base point is designated by the address data 2. From the map database 4, a house A21 as a surrounding environment, a house B22 as a surrounding environment, a house C23 as a surrounding environment, a house D24 as a surrounding environment, and a road 25 exist around the house 20 as a base point. You can see that When installing a solar power generation system, if the address is in the northern hemisphere, the building or object that obstructs the sunshine is basically the home 2
It is sufficient to consider those located in the azimuth range of 0 from east to south to west. Therefore, for example, when a house or an object east, south, or west of the base house 20 is used as the surrounding environment data 5, the surrounding environment house A21, the surrounding environment house B22, the surrounding environment house C23, and the surrounding environment The house D24 which becomes an environment will be acquired. Then, if the house 20 as the base point and its positional relationship, the coordinates of the land as a detailed positional relationship, the respective land areas, and the information regarding the shape of the building etc. also exist in the map database 4, they are also combined. It is output as the surrounding environment data 5.

FIG. 5 shows an example of the contents of the peripheral environment data 5. "Peripheral environment", search the map database 4,
If the obstacle or building exists in the west direction from the east to the south with respect to the base point, it is extracted. The “positional relationship” indicates the relative orientation of the building or the like searched for the base point. The “detailed positional relationship” indicates the coordinates of the land. The unit of the numerical value is m. “Land area” indicates the area of the site where the surrounding environment exists. The “shape information” indicates height and width. In some cases, "shape information" is not included. It should be noted that the obstacles and buildings are not limited to houses, and include topography such as mountains, land appendages such as trees, other buildings such as buildings, and structures such as elevated roads and elevated railways.

The map database 5 including information on such buildings can use the map information created in advance for real estate transactions such as houses. On the residential map, the buildings are shown in a plan view. For apartment houses such as condominiums, the number of floors is also listed. Topographical data such as mountains can be obtained from a normal topographical map.
In some cases, commercial databases are available via the Internet.

In step S3 of FIG. 2, the building shape calculating means 6 calculates the shapes of buildings and objects registered in the surrounding environment data 5, and outputs building shape data 7. As the calculation method, for example, there is a method of using an average shape. Average height h,
If the average width is w, then h = 8 m and w =
A method such as 10 m may be used. In addition, the shape may be calculated using the building coverage ratio or floor area ratio that is permitted in the area.

FIG. 6 shows an example of the building shape data 7 calculated based on the surrounding environment data 5 shown in FIG. The shape information of the houses A and B, which are blank in FIG. 5, is set as h = 8 m and w = 10 m described above. Similarly, when the building coverage and floor area ratios are used, the values can be set by converting them into heights and widths. Furthermore, in the case where houses sold by the same real estate agent are lined up in a specific area, it is possible to set a standard shape for that house.

Next, in step S4 of FIG. 2, the sunshine duration calculating means 8 calculates and outputs sunshine duration data 9 using the building shape data 7. Here, based on the positional relationship between the shape registered in the building shape data 7 and the base house, the annual sun movement is simulated on a computer, and the time when the base house is shaded by the surrounding environment Calculate the occurrence of bands in time series. Since the method of calculating the shadowed time zone is already known, its explanation is omitted here. Next, in step S5, the power generation amount calculation means 10 calculates the power generation amount using the sunshine duration data 9. At this time, weather information can be used to consider the effects of cloudy weather and rainy weather. Since the calculation of the power generation amount is also known, the description is omitted here.

Address input means 1, surrounding environment information acquisition means 3, building shape calculation means 6, sunshine duration calculation means 8 shown in FIG.
The power generation amount calculation means 10 can be realized by operating a general-purpose computer such as a personal computer with a program. The program is
The program can be read while being recorded in a recording medium such as a floppy disk, a CD-ROM, a DVD-ROM, or downloaded from an FTP site such as the Internet and executed. In addition, as a dedicated device, R
The program can be stored in the OM in advance.

By calculating the sunshine duration, it is possible to estimate the case where solar heat is used. In addition to the housing, it is possible to calculate the sunshine hours for greenhouses and farmland. The present invention can also be applied to a case where a high-rise building is newly constructed and the influence on neighboring houses is estimated with respect to the sunshine duration.

[0034]

As described above, according to the present invention, for example, a database accumulated based on the address of a target point for which ambient environmental conditions such as sunshine conditions should be acquired is searched,
Efficiently acquire geographical information including information about the shape of buildings around the address and acquire surrounding environment information by arithmetic processing that uses geographical information, so you can trust it without going to a field survey. It is possible to acquire highly sensitive surrounding environment information.

Further, according to the present invention, when an address is input to the address input means with respect to a point for which the surrounding environmental condition such as the sunshine condition is to be acquired, the information about the shape of the building around the address is displayed. Since it efficiently acquires geographical information including it, even if you do not go to a field survey,
Since the geographical information is obtained and the surrounding environment information is obtained by the arithmetic processing, it is possible to obtain the highly reliable surrounding environment information without going to the field survey.

Further, according to the present invention, when estimating the power generation amount of the solar power generation system, a database stored in advance is searched based on the address of the point where the sunshine condition is to be acquired, and the vicinity of the address is searched. Geographical information including information on buildings is acquired, so even if you do not go to a field survey, you can obtain the geographical information necessary to generate daylight hours data by calculation and obtain the geographical information of surrounding buildings. Accurate and reliable sunshine duration data can be acquired, including the effects. Since the amount of power generated by the solar power generation system is calculated using the generated sunshine duration data, it is possible to perform power generation capacity simulation with high accuracy, including the effects of surrounding buildings.

Further, according to the present invention, the information about the building which is stored in the database as the geographical information includes the azimuth, the distance and the shape of the building which may be obstacles to sunshine, based on the point where the power generation amount should be estimated. Therefore, it is possible to simulate the change in the position of the sun and calculate the correct sunshine time.

Further, according to the present invention, it is possible to carry out a sunshine simulation by using the shape of a building as a standard shape, and perform highly reliable estimation even if information about the detailed shape cannot be obtained.

Further, according to the present invention, the shape of the building is estimated to be a shape according to the building coverage ratio and the floor area ratio permitted in the area including the point where the power generation amount is estimated, and the shape of the actual building is determined. It is possible to increase the possibility of agreement and perform highly accurate estimation.

Further, according to the present invention, it is possible to cause the computer to estimate the power generation amount with high reliability for the solar power generation system.

Furthermore, according to the present invention, it is possible to cause the computer to read the program for highly reliable estimation of the power generation amount of the solar power generation system.

[Brief description of drawings]

FIG. 1 is a block diagram showing a schematic configuration for calculating a sunshine duration and a power generation amount of a photovoltaic power generation system according to an embodiment of the present invention.

FIG. 2 is a flowchart showing a schematic procedure for calculating a sunshine duration and a power generation amount of a solar power generation system in the embodiment of FIG.

FIG. 3 is a diagram showing an example of address data 2 in FIG.

FIG. 4 is a map showing an example of surrounding environment information acquired from the map database 4 of FIG.

5 is a chart showing an example of peripheral environment data 5 of FIG. 1. FIG.

6 is a chart showing an example of building shape data 7 of FIG. 1. FIG.

[Explanation of symbols]

1 Address input method 2 Address data 3 Surrounding environment information acquisition means 4 map database 5 surrounding environment data 6 Building shape calculation means 7 Building shape data 8 Daylight hours calculation means 9 daylight hours data 10 Power generation amount calculation means 20 base houses 21 Housing A that becomes the surrounding environment 22 Housing B, which is the surrounding environment 23 Housing C that becomes the surrounding environment 24 House D that becomes the surrounding environment 25 road

Claims (8)

[Claims] 1. A geographical information database including information about buildings is previously stored in a database for the area where the surrounding environment information is to be acquired, and based on the address of the point where the surrounding environment information should be acquired, A neighborhood characterized by searching a stored database, obtaining geographical information about the vicinity of the address, and obtaining surrounding environment information about the point by an arithmetic process using the obtained geographical information. Environmental information acquisition method. 2. A geographical information accumulating means for accumulating geographical information including information about buildings in advance in a database and an area where the surrounding environment information is to be acquired for the area where the surrounding environment information is to be acquired. An address input means for inputting an address, and a peripheral information acquisition means for searching the geographical information storage means based on the address input to the address input means and acquiring geographical information about the vicinity of the address, A surrounding environment information acquiring device, comprising: surrounding environment information calculating means for acquiring surrounding environment information about the point by a calculation process using the obtained geographical information. 3. For the area to be estimated, geographical information including information about buildings is stored in a database in advance, and the accumulated database is searched based on the address of the point to be estimated. Then, the geographical information about the vicinity of the address is acquired, the sunshine duration data about the point is generated by the arithmetic processing using the acquired geographical information, and the generated sunshine duration data is used to generate the sunshine duration data. A method for estimating the amount of power generated by a photovoltaic power generation system, which comprises calculating the amount of power generated when the photovoltaic power generation system is installed at a location. 4. The power generation of the photovoltaic power generation system according to claim 3, wherein the information about the building includes an azimuth, a distance, and a shape of the building which may be an obstacle to sunshine with respect to the point as a base point. Quantity estimation method. 5. The method according to claim 4, wherein the shape is estimated to be a standard shape that is preset according to the type of building. 6. The power generation amount estimation method for a photovoltaic power generation system according to claim 4, wherein the shape is estimated to be a shape according to a building coverage ratio and a floor area ratio permitted in an area including the point. . 7. A program for causing a computer to execute the power generation amount estimation method for a photovoltaic power generation system according to claim 3. 8. A computer-readable recording medium recording a program for causing a computer to execute the power generation amount estimating method for a photovoltaic power generation system according to any one of claims 3 to 6.