JP2015156809A - System, method, and program for evaluating architectural structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a system, a method, and a program for evaluating architectural structures by considering environmental conditions such as the quantity of solar radiation.SOLUTION: A control unit 21 of an evaluation server 20 performs a dimensionless solar radiation distribution calculation process by using the shape of a stadium and calculation conditions. The control unit 21 performs, by using acquired weather observation data, a conversion process on quantity of solar radiation of the calculated dimensionless solar radiation distribution into the quantity of solar radiation of solar radiation distribution with dimensions, and stores the result in a time series data storage unit 26. The control unit 21 performs a simulation of lawn growth by using the time series data stored in the time series data storage unit 26.

Description

  The present invention relates to a building evaluation system, a building evaluation method, and a building evaluation program for evaluating a building such as a ground provided with a sports turf, in which the amount of solar radiation affects the evaluation.

  There is a stadium with a pitch using turf as a building for soccer and athletics. Furthermore, some stadiums use natural turf because of the necessity and safety of the competition rules, and the feel during use.

However, natural turf is easy to hurt due to intense exercise and is difficult to manage.
In some cases, a stadium with a roof constructed for the purpose of being held in consideration of spectator noise to the surroundings and not affected by the weather. In this case, the upper part of the spectator seat is covered with a roof to prevent rain, and the pitch tends to be shaded, which adversely affects turf growth.

  Then, the prediction system for evaluating about the growth of turf is examined (for example, refer patent document 1). In the technique described in this document, turf growth is predicted by performing photosynthesis simulation and growth simulation on turf for each lattice point using time series data of solar radiation. Further, turf photosynthesis simulation and growth simulation are also disclosed in Patent Documents 2 and 3, respectively.

JP 2011-223915 A JP 2011-200208 A JP 2011-200909 A

  In the technique described in Patent Literature 1, a sunshine duration is calculated for a specific day (for example, every 10 days) by creating a shadow map for the daily movement of the sun. Then, the amount of solar radiation at the position of interest is calculated by combining the illuminance and the typical illuminance of the sun and the shadow in the daytime on a sunny day with this sunshine time.

However, the amount of solar radiation for an area in the building is affected by the type of solar radiation (direct solar radiation and scattered solar radiation) and the weather (mainly the amount of clouds) with respect to global solar radiation. For this reason, even in the same shade, the brightness may vary depending on the weather and location. Moreover, it is easy to create a shadow on a pitch in a building such as a covered stadium. Therefore, it has been difficult to calculate the amount of solar radiation appropriately.
Furthermore, in a stadium where the pitch can be moved, the amount of solar radiation changed depending on the location, and the growth of turf could not be predicted.

  This invention is made in view of the above-mentioned subject, The objective considered the environmental conditions, such as the amount of solar radiation, The building evaluation system, the building evaluation method, and the building evaluation program for evaluating a building It is to provide.

  The building evaluation system that solves the above problems stores a shape model data storage unit that stores the position of each element that represents the shape of the building, and a solar radiation amount ratio for each element with respect to the evaluation target area in the building. A dimensionless solar radiation distribution data storage unit, an observed meteorological data storage unit that stores past meteorological data, and a control unit that evaluates buildings using the amount of solar radiation. The control unit identifies the solar position at each time based on the installation location of the building, and the solar radiation amount ratio in the evaluation target area from the position of each element of the building and the position of the sun at each time The gist is to obtain past meteorological data related to the installation location from the observed meteorological data storage unit, and to calculate the solar radiation amount by correcting the solar radiation amount ratio using the weather data.

  According to this configuration, the ratio of solar radiation applied to the evaluation target area is calculated in consideration of the shape of the building, and this solar radiation ratio is corrected using past weather data. The building can be evaluated in consideration of the weather conditions.

  About the said building evaluation system, it is preferable that the said control part calculates the solar radiation amount which isolate | separated and calculated the solar radiation amount in the said evaluation object area into a direct achievement part and a scattering component, and totaled these. According to this configuration, since the directly achieved solar radiation and the solar radiation of the scattering component are calculated separately, the solar radiation amount ratio can be calculated more accurately.

  About the said building evaluation system, it is preferable that the said control part calculates the said solar radiation amount including the reflected light reflected in the said building. According to this configuration, the amount of solar radiation can be evaluated in consideration of the reflected light.

  About the building evaluation system, the building is a stadium, the evaluation target area is a pitch in which natural turf is planted in the stadium, and the control unit is based on the corrected amount of solar radiation, It is preferable to execute a turf growth simulation for the natural turf growth situation on the pitch. According to this configuration, the natural turf growth situation on the pitch can be simulated using the amount of solar radiation, so that the turf growth situation can be grasped more accurately.

  In the building evaluation system, the control unit is configured to monitor the observed weather data when a time increment in the turf growth simulation is shorter than an observation time interval of weather data stored in the observed weather data storage unit. It is preferable to convert the weather data stored in the storage unit into the weather data having the time interval and supply the converted weather data to the turf growth simulation. According to this configuration, it is possible to perform turf growth simulation with a time interval shorter than the observation interval of actually observed weather data.

  About the said building evaluation system, it is preferable to change the position of the said evaluation object area, and to calculate the said solar radiation amount about each said changed position. According to this configuration, it is possible to grasp the appropriate position of the evaluation target area by comparing the amount of solar radiation obtained by changing the position of the evaluation target area.

  According to the present invention, a building can be evaluated in consideration of environmental conditions such as solar radiation.

Explanatory drawing explaining the structure of the building evaluation system in embodiment. The flowchart explaining the process sequence of the environmental data calculation process in embodiment. The flowchart explaining the process sequence of the dimensionless solar radiation distribution calculation process in embodiment. The flowchart explaining the process sequence of the optimization process of a pitch position. The flowchart explaining the process sequence of the optimization process of a pitch position.

  Hereinafter, according to FIGS. 1-3, one Embodiment of the building evaluation system, the building evaluation method, and the building evaluation program which actualized this invention are described. In the present embodiment, a stadium (building) having a pitch in which natural turf is planted will be described as a building evaluation system that performs evaluation based on the amount of solar radiation on the pitch (evaluation target area). The pitch is arranged within the ground of the stadium.

  The evaluation server 20 used in this building evaluation system is connected to the user terminal 10. The user terminal 10 functions as input / output means for the evaluation server 20. The user terminal 10 includes an input unit for inputting input data such as a stadium shape and calculation conditions. The input unit includes an external medium port, a keyboard, a pointing device, and the like. Further, the user terminal 10 includes an output unit that outputs data used in the evaluation server 20 and evaluation results. This output unit is configured by a display.

  The evaluation server 20 includes a control unit 21, a stadium shape data storage unit 22, a calculation condition data storage unit 23, a weather station data storage unit 24, a dimensionless solar radiation distribution data storage unit 25, and a time series data storage unit 26. Here, the stadium shape data storage unit 22 functions as a shape model data storage unit, and the weather station data storage unit 24 functions as an observation weather data storage unit.

  The control unit 21 includes a CPU, a RAM, a ROM, and the like, and functions as an environment evaluation unit 210, a solar radiation amount ratio calculation unit 211, and a turf growth evaluation unit 212 by executing a building evaluation program.

  The environment evaluation unit 210 executes processing for calculating environment data used for building evaluation. In the present embodiment, the solar radiation distribution on the pitch is calculated as environmental data. Here, the solar radiation amount of each pitch is calculated as the sum of the directly achieved amount (direct solar radiation amount) directly reached from the sun and the scattering component (scattered solar radiation amount) reflected and scattered by atmospheric molecules and buildings. The The scattering component includes a scattering component due to the scattering of atmospheric molecules from the sky (first scattered solar radiation amount) and a scattering component due to reflection of direct solar radiation (second scattered solar radiation amount). The environment evaluation unit 210 calculates a dimensional solar radiation distribution on the pitch using the dimensionless solar radiation amount calculated by the solar radiation amount ratio calculating unit 211, the total solar radiation amount, and the direct solar radiation amount reaching the ground. This dimensional solar radiation distribution is a time-series solar radiation distribution that takes into account solar altitude and cloud cover.

For this reason, the environment evaluation part 210 has memorize | stored the calculation formula of the following ground reach | attainment direct solar radiation amount.
Sp = S0. (1-A _H2O- R) _.F (c)
Here, Sp is the amount of direct solar radiation reaching the ground (W · m ⁻² ), and S0 is the total amount of solar radiation before being attenuated by the atmosphere. A _H2O and R are absorption by water vapor and attenuation of solar radiation by molecular scattering in the atmosphere, and are values specified according to the position of the sun. F (c) is attenuation due to clouds.

That is, the amount of direct solar radiation reaching the ground is based on the energy flow density (1368 W / m ² ) of solar radiation at the top of the atmosphere determined from the position of the sun, taking into account the influence of water vapor absorption attenuation in accordance with the passage distance in the atmosphere. Calculated. The passage distance in the atmosphere corresponds to the optical path length. When the solar altitude is low, the distance that sunlight passes through the atmosphere becomes long, and the influence of the absorption attenuation of water vapor in the atmosphere becomes large. In addition, the amount of water vapor is evaluated by an average water vapor distribution amount, that is, a humidity distribution amount from the ground to the sky. For the evaluation of the water vapor attenuation, the solar radiation attenuation formula using water vapor in the past research of meteorology is used.

Further, since the amount of direct solar radiation reaching the ground is attenuated by the presence of clouds, it is calculated in consideration of the influence of attenuation of direct solar radiation by clouds. The relational expression F (c) of the attenuation of the direct solar radiation amount due to the cloud amount is an empirical formula between the cloud amount calculated using the cloud amount observed at a plurality of observation points and the direct solar radiation attenuation amount. In the present embodiment, the relational expression F (c) for each class classified into four according to the cloud amount is stored in the environment evaluation unit 210.
Then, the environment evaluation unit 210 calculates a direct solar radiation amount having a dimension by multiplying the directly achieved direct solar radiation amount by the amount of direct achievement of the dimensionless solar radiation distribution data. Furthermore, the environment evaluation unit 210 calculates a second scattered solar radiation amount having a dimension by multiplying the calculated direct solar radiation amount on the ground by the second scattering component of the dimensionless solar radiation distribution data.

  Furthermore, the environment evaluation unit 210 multiplies the first scattering component of the non-dimensional solar radiation distribution data by a value obtained by subtracting the calculated amount of direct solar radiation reaching the ground from the total solar radiation amount. Calculate scattered solar radiation. This is because the input of the sky scattered solar radiation is set to 1, and the relative distribution on the pitch originating from it is obtained.

Then, the environment evaluation unit 210 calculates the total amount of solar radiation poured into each lattice point on the pitch by summing up the dimensionalized direct solar radiation amount and the scattered solar radiation amount.
Furthermore, the environment evaluation unit 210, when the meteorological data (observed meteorological data) actually observed in the calculation time interval (time increment) used for the turf growth simulation is not stored in the meteorological observing data storage unit 24, The weather data at each time (calculation target time) in the calculation time interval is calculated using a calculation formula using an interpolation method. For this reason, the environment evaluation unit 210 stores a meteorological data calculation formula for calculating the meteorological data at the calculation target time by the interpolation method using the observed meteorological data at a time close to the calculated calculation target time.

  The solar radiation amount ratio calculation unit 211 performs a process of calculating a dimensionless solar radiation amount (a solar radiation amount ratio) in each element on the pitch, with the incident solar radiation intensity set to “1”. In the present embodiment, the directly achieved component and the scattered component are separated and calculated for each calculation target time in the analysis period. For this reason, in order to calculate the amount of solar radiation, the solar radiation amount ratio calculation unit 211 uses the latitude / longitude to calculate the sunrise and sunset times and the sun position (azimuth angle and altitude angle) at each daytime. The solar position calculation formula which calculates astronomically is memorized. The solar radiation amount ratio calculating unit 211 calculates distribution data of the ratio of the solar radiation amount on the pitch (non-dimensionalized solar radiation amount) to the solar radiation having a strength “1” (direct solar radiation, scattered solar radiation).

  The solar radiation amount ratio calculation unit 211 stores a direct achievement calculation formula for calculating a direct achievement at a sunny grid point, as will be described later. This straight achievement calculation formula is a formula calculated from the relationship between the normal direction with respect to the sunny grid point, the azimuth angle and altitude angle of the sun.

  Moreover, the solar radiation amount ratio calculation part 211 performs the reflection calculation process of direct solar radiation. Direct solar reflections occur at pitches and stands located in the sun. Here, the reflected direct solar radiation may be incident on the pitch as scattered solar radiation as it is (one time reflection), or may be reflected again upon hitting the stand or the back of the roof (multiple reflection). In the present embodiment, the non-dimensional scattered solar radiation amount (second scattering component) that reaches the pitch after the direct solar radiation is reflected twice at maximum is calculated. Here, the amount of solar radiation by the reflected light is calculated assuming that a certain percentage (reflectance) of the energy of the incident light is reflected and the intensity of the reflected light is the same in all directions (isotropic reflection) Assumption).

  Further, the solar radiation amount ratio calculation unit 211 performs a calculation process of a scattering component (first scattering component) due to scattering of atmospheric molecules from the sky. Here, it is assumed that scattered solar radiation having the same intensity enters the pitch surface from all directions in the sky other than the sun. And, like the reflection of the direct achievement, the scattered solar radiation is considered to occur when it is applied to the pitch or the stand. As is the case with the direct solar radiation, isotropic reflection with a constant reflectance is assumed, and the maximum is twice. Calculated in consideration of scattered solar radiation that has undergone reflection.

  The turf growth evaluation unit 212 executes a process of evaluating turf growth on the pitch using the dimensional solar radiation amount at each calculation target time in the analysis period and weather data (wind speed, temperature, etc.). In this embodiment, the growth of turf is evaluated using the prediction method disclosed in Patent Document 1 described above. In this case, the turf growth evaluation unit 212 uses the time-series data recorded in the time-series data storage unit 26 (the solar radiation distribution data and weather data converted into dimensions) to determine the existing amount of turf leaves and roots. By calculating in time series, the growth state of turf planted on the pitch is evaluated.

  The stadium shape data storage unit 22 stores data on each lattice point representing the stadium shape with triangular elements together with the shape file name. This is data obtained by modeling a stadium using stadium shape information (roof, outer wall, stand, ground). In the present embodiment, the pitch position can be changed in the horizontal direction and the vertical direction, each is modeled as a separate stadium, and each file name is assigned.

The shape file name data area includes data relating to an identifier for specifying each stadium shape.
Each lattice point data area includes data regarding the position and attributes of lattice points.

In the position data area, coordinate (x, y, z) data indicating the position of the lattice point is recorded.
In the attribute data area, data related to the attribute assigned to the lattice point is recorded. In the present embodiment, the reflectance and transmittance corresponding to the material at the lattice point are used as attributes.

  The calculation condition data storage unit 23 stores data related to calculation conditions when a simulation is performed. In the present embodiment, the calculation condition data includes latitude / longitude, analysis period, calculation time interval, and shape file name.

In the latitude / longitude data area, data relating to the latitude and longitude of the construction point (ground center) of the stadium to be evaluated is recorded.
In the analysis period data area, data relating to a period (start date and end date) for calculating the amount of solar radiation is recorded. When the analysis period is one year, the start date (January 1) and the end date (December 31) are recorded.

In the calculation time interval data area, data related to the time interval (time step size) for calculating the amount of solar radiation is recorded. This calculation time interval can be arbitrarily set.
In the shape file name data area, an identifier for specifying the shape of the stadium to be evaluated is recorded. Each shape of the stadium in the stadium shape data storage unit 22 is specified via the shape file name.

  The meteorological station data storage unit 24 stores observed meteorological data observed in the past at the meteorological station. The observed weather data is stored in association with the date, time, and observation point. The observed weather data is hourly weather data. This observed meteorological data includes data on global solar radiation, cloud cover, wind speed, temperature, rainfall, atmospheric pressure and humidity.

In the date / time data area and the time data area, data related to the date / time when each meteorological data is observed are recorded.
In the observation point data area, data relating to the point (latitude / longitude) where each weather data is observed is recorded.

In the global solar radiation data area, data relating to the global solar radiation at this observation point at this time is recorded.
In the cloud amount data area, data relating to the cloud amount at this observation point at this time is recorded. This cloud amount is represented by “0” to “1.0”. In this embodiment, when the cloud amount is 0, there is no cloud, and when it is 1.0, the whole sky is covered with clouds. When the cloud amount is less than 0.3, the weather is clear, when the cloud amount is 0.3 to 0.7, the sky is clear, and 0.8 to 1.0 is the cloud sky.

  In the wind speed data area, the temperature data area, the rainfall data area, the atmospheric pressure data area, and the humidity data area, data relating to the wind speed, temperature, rainfall, atmospheric pressure, and humidity at this observation point at this time are recorded.

  The dimensionless solar radiation distribution data storage unit 25 records dimensionless solar radiation distribution data. This dimensionless solar radiation distribution data is calculated by a dimensionless solar radiation distribution calculation process described later. The dimensionless solar radiation distribution data includes data relating to the shape file name, date, time, position of the grid point, direct achievement, and scattering component.

In the shape file name data area, an identifier for specifying the shape of the stadium to be evaluated is recorded.
In the year / month / day data area and the time data area, data related to the year / month / day and time for specifying the date and time of the calculated dimensionless solar radiation amount is recorded.

In the position data area of the lattice points, data relating to the position (two-dimensional coordinates) of the lattice points on the calculated pitch of the non-dimensional solar radiation amount is recorded.
In the direct achievement data area and the scattering component data area, data relating to the dimensionless solar radiation amount (irradiation amount ratio) of the direct achievement data and the scattering component is recorded, respectively. Here, the dimensionless solar radiation amount of the first scattering component and the dimensionless solar radiation amount of the second scattering component are recorded in the scattering component data area.

  The time series data storage unit 26 stores time series data related to environmental information. As the time series data, weather data at each calculation target time in the analysis period and dimensional solar radiation distribution data on the pitch are stored in association with the shape file name.

The meteorological data includes data on wind speed, temperature, rainfall, atmospheric pressure, and humidity at each calculation target time in the analysis period.
The dimensional irradiance distribution data on the pitch includes irradiance (directly achieved and scattered component) data converted into dimensions at each lattice point on the pitch at each calculation target time in the analysis period.

(Environmental data calculation process)
Next, an environment data calculation process for calculating environment data used for turf growth simulation will be described with reference to FIG. In the present embodiment, a two-dimensional distribution of weather data and solar radiation on the pitch surface at each calculation target time in the analysis period is calculated.

  First, the control unit 21 of the evaluation server 20 executes a stadium shape acquisition process (step S1-1). Specifically, the environment evaluation unit 210 of the control unit 21 first creates a stadium shape model. The environment evaluation unit 210 acquires the shape and size of the stadium roof, outer wall, stand, and ground via the user terminal 10. The environment evaluation unit 210 represents the shape of the stadium with a shape model composed of triangular elements. Here, a shape in which the pitch location is changed (planar movement or elevation movement) in the stadium is generated, and each shape model is created.

  Next, the environment evaluation unit 210 specifies, for each lattice point of each triangular element of the shape model, transmittance and reflectance for solar radiation according to the material constituting the element as attributes. Here, the transmittance | permeability according to the material is provided with respect to the element comprised with the material which permeate | transmits light, such as glass. Further, a transmittance “0” is given to an element made of an opaque material.

  Then, the environment evaluation unit 210 assigns a shape file name to the shape model of the stadium composed of each lattice point of the triangular element in which the specified attribute is set, and stores the shape file name in the stadium shape data storage unit 22. In this case, different shape file names are assigned and stored for shape models having different pitch positions.

  Next, the control unit 21 of the evaluation server 20 executes calculation condition acquisition processing (step S1-2). Specifically, the environment evaluation unit 210 of the control unit 21 displays an input screen for inputting calculation conditions on the user terminal 10. This input screen includes a latitude / longitude of the stadium construction point, an analysis period, a calculation time interval, an input field for a stadium shape file name to be calculated, and a calculation execution button. Then, the user inputs desired contents in each input field. Here, it is assumed that “1 year” is input as the analysis period and “30 minutes” is input as the calculation time interval. When the calculation execution button is selected, the environment evaluation unit 210 of the control unit 21 acquires the input calculation condition and records it in the calculation condition data storage unit 23.

  Next, the control part 21 of the evaluation server 20 performs a dimensionless solar radiation distribution calculation process (step S1-3). Specifically, the solar radiation amount ratio calculating unit 211 of the control unit 21 calculates a dimensionless solar radiation distribution on the pitch surface of the stadium at each calculation target time in the acquired analysis period. Then, as a calculation result, the non-dimensionalized solar radiation amount (direct achievement and scattering component) is recorded in the non-dimensional solar radiation distribution data storage unit 25 for each grid point on the date, time, and pitch. Details of this processing will be described later.

  Next, the control unit 21 of the evaluation server 20 executes an intermediate output process (step S1-4). Specifically, the environment evaluation unit 210 of the control unit 21 displays a confirmation screen on the display of the user terminal 10. This confirmation screen includes the dimensionless solar radiation amount recorded in the dimensionless solar radiation distribution data storage unit 25 and a confirmation button. When the confirmation button is selected, the environment evaluation unit 210 performs the following processing.

  Next, the control part 21 of the evaluation server 20 performs the acquisition process of neighborhood weather station data (step S1-5). Specifically, the environment evaluation unit 210 of the control unit 21 acquires observation weather data in the vicinity of the stadium construction point from the weather station data storage unit 24. Specifically, the environment evaluation unit 210 acquires the weather data of the observation point closest to the latitude / longitude of the stadium construction point from the meteorological observatory data storage unit 24 during the analysis period. Here, as weather data, data on global solar radiation amount, cloud amount, wind speed, temperature, rainfall, atmospheric pressure and humidity in the analysis period are acquired.

  Next, the control part 21 of the evaluation server 20 performs the conversion process to the weather data for every calculation time interval (step S1-6). Specifically, the environment evaluation unit 210 of the control unit 21 generates weather data at a calculation time interval using the acquired observed weather data. Here, when all the observation weather data at the calculation target time in the analysis period can be acquired, this observation weather data is used. In addition, when there is a calculation target time at which the observation weather data cannot be obtained, the environment evaluation unit 210 substitutes the observation meteorological data at times before and after the calculation target time into the weather data calculation formula, Calculate meteorological data.

Next, the control part 21 of the evaluation server 20 performs the conversion process of the solar radiation amount to a dimensional (step S1-7). Specifically, the environment evaluation unit 210 of the control unit 21 calculates the attenuation relational expression F (c) due to the cloud according to the cloud amount, and calculates the attenuation A _H2O , R of the solar radiation amount specified according to the position of the sun. calculate. The environment evaluation unit 210 calculates the ground reachable direct solar radiation amount by substituting the calculated solar radiation attenuation A _H2O , R and the attenuation relational expression F (c) into the ground reachable direct solar radiation amount calculation formula. Then, the environment evaluation unit 210 multiplies the direct achievement of the dimensionless solar radiation distribution data by the calculated amount of direct solar radiation reaching the ground to obtain a dimensional (W · m ⁻² ) direct solar radiation amount at each grid point on the pitch. Is calculated. Further, the second scattered solar radiation amount is calculated by multiplying the ground direct solar radiation amount by the dimensionless scattered solar radiation amount (second scattering component) due to the reflection of the direct solar radiation. In addition, the environment evaluation unit 210 multiplies the scattered component of the non-dimensional solar radiation distribution data by multiplying the scattering component of the non-dimensional solar radiation distribution data by subtracting the direct solar radiation amount reaching the ground from the total solar radiation amount of the weather data at each calculation target time. The amount (first scattered solar radiation amount) is calculated. Then, the environment evaluation unit 210 sums the dimensional direct solar radiation amount and the scattered solar radiation amount (the first scattered solar radiation amount and the second scattered solar radiation amount) to thereby obtain the total solar radiation amount at each lattice point on the pitch. Is calculated.

  Next, the control unit 21 of the evaluation server 20 executes time-series data output processing (step S1-8). Specifically, the environment evaluation unit 210 of the control unit 21 stores the dimensional solar radiation distribution data and the weather data converted into dimensional on the pitch in the time-series data storage unit 26.

  Next, the control unit 21 of the evaluation server 20 executes turf growth simulation processing. Specifically, the environment evaluation unit 210 of the control unit 21 displays a turf growth simulation start screen on the display unit of the user terminal 10. This start screen includes a message indicating that the time series data calculation process has been completed and an execution start button for executing a turf growth simulation. In the user terminal 10, when the execution start button is designated, the lawn growth evaluation unit 212 of the control unit 21 transmits the time-series data of the shape file name stored in the calculation condition data storage unit 23 from the time-series data storage unit 26. To get. Then, the turf growth evaluation unit 212 executes a turf growth simulation using the time series data. The turf growth evaluation unit 212 displays the simulation result on the display unit of the user terminal 10. As a simulation result, for example, a time-series change about the existing amount of turf leaves and roots is output.

(Dimensionless solar radiation distribution calculation process)
Next, the dimensionless solar radiation distribution calculation process (step S1-3) will be described in detail with reference to FIG. Here, the following processing is executed for each time (calculation target time) every calculation time interval (30 minutes) for each day of the acquired analysis period.

  First, the solar radiation amount ratio calculation part 211 of the control part 21 performs the calculation process of the position of the sun (step S2-1). Specifically, the solar radiation amount ratio calculating unit 211 substitutes the latitude and longitude of the construction point of the stadium into the solar position calculation formula, so that the sunrise and sunset times and the solar time at each calculation target time during the day The position (azimuth angle and altitude angle) is calculated.

Next, the solar radiation amount ratio calculation part 211 of the control part 21 performs the calculation process of the dimensionless solar radiation distribution on a pitch (step S2-2).
Here, first, the solar radiation amount ratio calculation unit 211 determines whether each lattice point on the pitch surface is in the sun or in the shade. Specifically, the solar radiation amount ratio calculating unit 211 uses the position of the sun and the position of each lattice point on the pitch surface, and determines whether or not a stadium component exists between them.

  And when the stadium component does not exist between the position of the sun and the position of the grid point, the solar radiation amount ratio calculation unit 211 determines that the grid point exists in the sun. When it is determined that the grid point exists in the sun, the solar radiation amount ratio calculation unit 211 substitutes the normal direction at this grid point and the azimuth angle and altitude angle of the sun at this time into the calculation formula, Calculate the amount of solar radiation directly irradiated. When it is determined that a stadium component exists between the sun position and the grid point position, the solar radiation amount ratio calculation unit 211 determines whether the transmittance of the component is “0”. Here, when the transmittance is “0”, the solar radiation amount ratio calculating unit 211 calculates that the lattice point exists in the shadow and the solar radiation amount directly irradiated from the sun at this lattice point is “0”. . Further, when the transmittance is not “0”, the solar radiation amount ratio calculating unit 211 calculates the solar radiation amount reduced according to the transmittance, and the dimensionless solar radiation amount directly irradiated from the sun. Is identified. As described above, the solar radiation amount ratio calculation unit 211 acquires the directly achieved amount.

  Next, the solar radiation amount ratio calculating unit 211 executes a direct solar radiation reflection calculation process. Specifically, the solar radiation amount ratio calculation unit 211 specifies the grid points of the stadium that are in the sun other than the pitch from the positional relationship between the position of the sun and each grid point. Then, the solar radiation amount ratio calculation unit 211 identifies lattice points whose reflectance is not “0” among lattice points in the sun.

  Next, the solar radiation amount ratio calculation unit 211 calculates the solar radiation amount poured into the identified grid points by substituting the positions of the grid points and the sun into the calculation formula. And the solar radiation amount ratio calculation part 211 calculates the solar radiation amount by reflection by multiplying the reflectance provided to the lattice point by the calculated solar radiation amount.

  Moreover, the solar radiation amount ratio calculation part 211 specifies the direction of the reflected solar radiation amount from the position of a lattice point, and the position of the sun, and specifies the position where this reflected solar radiation amount is irradiated. Next, the solar radiation amount ratio calculation unit 211 specifies a lattice point whose reflectance is not “0” among the positions (grid points) irradiated with the reflected light. Next, the solar radiation amount ratio calculating unit 211 calculates the solar radiation amount and the irradiation position of the reflected light, which is the reflected light that has been irradiated again, using the reflectance and the incident angle of the reflected light.

Then, the solar radiation amount ratio calculation unit 211 sums up the scattered solar radiation amount that the direct solar radiation reaches by one or two reflections at the lattice point irradiated with the reflected light, so that the dimensionless dimension at this lattice point is obtained. A second scattering component is calculated.
Next, the solar radiation amount ratio calculation unit 211 performs a first scattering component calculation process. In this case, each grid point of the stadium is specified as being irradiated with the same amount of solar radiation from the sky other than the sun. And the solar radiation amount ratio calculation part 211 specifies the lattice point whose reflectance is not "0" among each lattice point. And the solar radiation amount ratio calculation part 211 multiplies this reflectance by the irradiated solar radiation amount, and calculates the solar radiation amount by reflection.

Furthermore, the solar radiation amount ratio calculation unit 211 identifies a position (coordinate of the grid point) where the reflectance is not “0” among the positions on the pitch (coordinates of the grid point) irradiated with the reflected light. Next, the solar radiation amount ratio calculating unit 211 calculates the solar radiation amount and the irradiation position of the reflected light, which is the reflected light that has been irradiated again, using the reflectance and the incident angle of the reflected light.
Then, the solar radiation amount ratio calculation unit 211 calculates the first scattering component by summing the scattered light and the solar radiation amount by the reflected light of the scattered light at the lattice point irradiated with the reflected light.

  And the solar radiation amount ratio calculation part 211 of the control part 21 performs the recording process of a calculation result (step S2-3). Specifically, the solar radiation amount ratio calculation unit 211 includes the dimensionless solar radiation distribution together with the shape file name stored in the calculation condition data storage unit 23 for the calculated direct achievement and scattering component at each pitch position at each calculation target date and time. The data is stored in the data storage unit 25.

According to this embodiment, the following effects can be obtained.
(1) In this embodiment, the control part 21 of the evaluation server 20 performs a dimensionless solar radiation distribution calculation process using a stadium shape and calculation conditions (step S1-3). The control unit 21 uses the acquired observed meteorological data to perform conversion processing of the calculated non-dimensional solar radiation distribution into the dimensional (step S1-7) and stores it in the time-series data storage unit 26. The control unit 21 executes turf growth simulation using the time-series data stored in the time-series data storage unit 26. As a result, it is possible to more accurately grasp the growth state of the turf planted on the pitch in consideration of the shape of the stadium and actual weather conditions in the past, so that the stadium can be evaluated more appropriately. .

  (2) In the present embodiment, the control unit 21 of the evaluation server 20 calculates the amount of solar radiation by separating the direct achievement and the scattering component. Thereby, even if it is a solar radiation amount, since the direct achievement part and scattering component from which a property differs are calculated separately, a solar radiation amount can be calculated more correctly.

  (3) In the present embodiment, the control unit 21 of the evaluation server 20 calculates the amount of solar radiation including the reflected light reflected in the stadium. Thereby, the amount of solar radiation can be calculated in consideration of the reflected light in the stadium.

  (4) In this embodiment, the control part 21 of the evaluation server 20 performs the conversion process to the weather data for every calculation time interval (step S1-6), and memorize | stores this weather data in the time series data storage part 26. To do. For this reason, even if the calculation time interval in the turf growth simulation is shorter than the time interval of actually observed weather data, the turf growth simulation can be executed smoothly.

Moreover, you may change the said embodiment as follows.
-In the above-mentioned embodiment, control part 21 of evaluation server 20 acquired observation weather data in the neighborhood of a stadium construction point in acquisition processing (Step S1-5) of neighborhood weather station data. If weather data can be acquired, it is not limited to data from nearby weather stations. For example, when there is observation weather data at a stadium construction point, this may be used.

  In the above embodiment, the control unit 21 of the evaluation server 20 creates a stadium shape model in the stadium shape acquisition process (step S1-1). The stadium shape model may be created in advance and stored in the stadium shape data storage unit 22. In this case, the stadium shape file name is specified at the start of evaluation. Here, a plurality of stadium shape models may be evaluated simultaneously. For example, the shape file names of a plurality of stadiums whose pitch positions are changed are acquired. And the control part 21 of the evaluation server 20 performs the calculation process (step S2-1) of the position of the sun in the dimensionless solar radiation distribution calculation process (step S1-7), and then the dimensionless solar radiation distribution on the pitch. The calculation process (step S2-2) may be executed for each stadium shape file. And the control part 21 performs a turf growth simulation using the dimensional solar radiation amount according to the shape of the designated some stadium, and displays the result side by side on the user terminal 10. Thereby, since the evaluation of the stadium where the pitch position is changed can be grasped, a stadium shape having an appropriate pitch position can be selected.

  In the above embodiment, the pitch position is fixed in the stadium to be evaluated. Alternatively, the pitch may be movable in the horizontal direction at the stadium. In this case, an optimum pitch position (a position where the amount of solar radiation is large within a movable range) is specified for each time, and evaluation at this position is performed. For example, the control unit 21 of the evaluation server 20 calculates the amount of solar radiation applied to the pitch movable range at every calculation target time in one day. And the pitch position (stadium shape) where the amount of solar radiation irradiated to a pitch area becomes the highest is specified for every calculation object time. Thereby, the pitch position for every time when more solar radiation amount is irradiated may be specified, and the position of the pitch may be changed according to this time.

  -In the said embodiment, it evaluated using the shape of a stadium. In addition to this, the stadium usage may be taken into account for evaluation. Here, an event schedule to be executed in the stadium may be specified, and the pitch position may be changed in accordance with the event schedule, and the pitch position may be optimized. In this case, the control unit 21 of the evaluation server 20 connects to a schedule storage unit that stores a scheduled event schedule. This event schedule data includes use date / time (use start date / time and end start date / time), event contents, and data regarding the use location in the stadium.

  In the pitch position optimization process shown in FIG. 4, first, the control unit 21 of the evaluation server 20 executes an event schedule acquisition process (step S3-1). Specifically, the control unit 21 of the evaluation server 20 acquires event schedule data from the schedule storage unit.

  Next, the control unit 21 of the evaluation server 20 executes a pitch position specifying process based on the event schedule (step S3-2). Specifically, the control unit 21 determines the pitch position according to the event type at the event use date and time. Here, the vertical direction (for example, the lowest position) and the horizontal direction (for example, the center) of the pitch are determined.

  Next, the control unit 21 of the evaluation server 20 executes the pitch movable planning process so that the total amount of solar radiation in the pitch is maximized in a time zone where no event is scheduled (step S3-3). Specifically, the control unit 21 specifies the length of a time zone (analysis period) in which no event is scheduled. Next, the control unit 21 specifies an analysis period longer than the time necessary for moving the pitch (time required for movement). Next, the control unit 21 calculates solar radiation distribution data on the pitch for each stadium having a different pitch position for each predetermined calculation time for the specified analysis period, and stores it in the time-series data storage unit 26. To do. The control unit 21 uses the solar radiation distribution data in the time-series data storage unit 26 to specify the stadium shape having the pitch position when the total solar radiation amount on the pitch becomes maximum at each calculation target time of each stadium. And the control part 21 displays the movable plan which displayed the stadium shape in time series on the display part of the user terminal 10. FIG. Thereby, the amount of solar radiation can be enlarged based on the movable plan which considered the event.

  In the above embodiment, the stadium is evaluated based on the amount of solar radiation. In addition to this, the evaluation may be performed in consideration of the load on the building when the pitch is moved. In this case, the load on the building includes a load on the building and a cost load. Specifically, the evaluation server 20 includes a load value storage unit that stores data related to a load value corresponding to the position (height) of the pitch. Moreover, the control part 21 has memorize | stored the data regarding a load reference value.

  As illustrated in FIG. 5, the control unit 21 of the evaluation server 20, similarly to steps S <b> 3-1 and S <b> 3-2, obtains an event schedule (step S <b> 4-1) and pitch pitch specifying process based on the event schedule ( Step S4-2) is executed. Then, the control unit 21 of the evaluation server 20 executes the pitch movable planning process so that the load value is below the reference and the total amount of solar radiation in the pitch is maximized in the time zone when no event is scheduled (step S4-3). . Specifically, the control unit 21 specifies a load value corresponding to the pitch position from the load value storage unit for each calculation target time in a time zone (analysis period) in which no event is scheduled. The control unit 21 specifies the position of the pitch where the acquired load value is equal to or less than the load reference value. Next, the control unit 21 calculates solar radiation distribution data on the pitch for each stadium having a different pitch position for each predetermined calculation time for the specified analysis period, and stores it in the time-series data storage unit 26. To do. The control unit 21 uses the solar radiation distribution data in the time-series data storage unit 26 to specify a stadium shape having a pitch position at which the total solar radiation amount on the pitch is maximum at each calculation target time of each stadium. And the control part 21 displays the movable plan which displayed the stadium shape in time series on the display part of the user terminal 10. FIG. Thereby, in consideration of an event, it is possible to evaluate a building whose load is below the standard and which maximizes the amount of solar radiation.

  In the other embodiments (FIGS. 4 and 5), the control unit 21 of the evaluation server 20 uses the event schedule stored in the schedule storage unit in the event schedule acquisition process (steps S3-1 and S4-1). Was used to execute the pitch movement planning process (steps S3-3 and S4-3). You may perform the pitch movable plan process in the period when the schedule of an event is undetermined. Specifically, the control unit 21 of the evaluation server 20 is connected to an event execution data storage unit that records past event results. The control unit 21 acquires the date and time when the stadium was used from the event execution data storage unit, predicts the holding time and holding frequency according to the date and time, and uses this predicted event schedule to perform the pitch movable planning process. May be executed.

  In the above embodiment, the stadium where the pitch position changes is evaluated. The shape of the stadium to be evaluated is not limited to this. For example, it is possible to evaluate a stadium in which the position of a part constituting the stadium such as a stand is changed. In this case, when the stand is made of a material having high reflectivity, the stand may be moved so that a large amount of solar radiation is irradiated onto the pitch by the light reflected on the stand.

  In the above embodiment, environmental data used for turf growth simulation is calculated, and the stadium having a pitch in which natural turf is planted is evaluated. If it is the evaluation of the building evaluated based on the amount of solar radiation, it is not limited to the evaluation of the stadium. For example, it is applied to buildings that are evaluated based on the amount of solar radiation, such as growth simulations of plants for covering the ground (so-called ground covers), plants for greening, and power generation simulations in houses equipped with solar cell panels. be able to.

  DESCRIPTION OF SYMBOLS 10 ... User terminal, 20 ... Evaluation server, 21 ... Control part, 22 ... Stadium shape data storage part, 23 ... Calculation condition data storage part, 24 ... Meteorological station data storage part, 25 ... Dimensionless solar radiation distribution data storage part, 26 ... Time series data storage unit 210... Environment evaluation unit 211... Solar radiation amount ratio calculation unit 212.

Claims (8)

A shape model data storage unit storing the position of each element representing the shape of the building;
About the evaluation object area in the building, a dimensionless solar radiation distribution data storage unit that stores a solar radiation amount ratio for each element,
Observation weather data storage unit that stores past weather data,
A building evaluation system comprising a controller for evaluating a building using solar radiation,
The controller is
Based on the location of the building, identify the solar position at each time,
Calculate the solar radiation amount ratio in the evaluation target area from the position of each element of the building and the position of the sun at each time,
A building evaluation system characterized in that past meteorological data related to the installation location is acquired from the observed meteorological data storage unit, and an amount of solar radiation obtained by correcting the ratio of the amount of solar radiation is calculated using the weather data.   The building evaluation according to claim 1, wherein the control unit calculates a solar radiation amount in the evaluation target area separately for a directly achieved component and a scattering component, and calculates a solar radiation amount obtained by summing these components. system.   The said control part calculates the said solar radiation amount including the reflected light reflected in the said building, The building evaluation system of Claim 1 or 2 characterized by the above-mentioned. The building is a stadium, and the evaluation target area is a pitch in which natural grass is planted in the stadium,
The said control part performs the turf growth simulation about the growth condition of the natural turf on the said pitch based on the said corrected solar radiation amount, The building of any one of Claims 1-3 characterized by the above-mentioned. Object evaluation system.   When the time increment in the turf growth simulation is shorter than the observation time interval of the weather data stored in the observed weather data storage unit, the control unit is stored in the observed weather data storage unit 5. The building evaluation system according to claim 4, wherein meteorological data is converted into meteorological data having the time interval, and the converted meteorological data is supplied to the turf growth simulation.   The building evaluation system according to any one of claims 1 to 5, wherein the position of the evaluation target area is changed, and the amount of solar radiation is calculated for each changed position. A shape model data storage unit storing the position of each element representing the shape of the building;
About the evaluation object area in the building, a dimensionless solar radiation distribution data storage unit that stores a solar radiation amount ratio for each element,
Observation weather data storage unit that stores past weather data,
A method for evaluating a building using solar radiation using a building evaluation system including a control unit,
The controller is
Based on the location of the building, identify the solar position at each time,
Calculate the solar radiation amount ratio in the evaluation target area from the position of each element of the building and the position of the sun at each time,
A building evaluation method characterized in that past meteorological data related to the installation location is acquired from the observed meteorological data storage unit, and the amount of solar radiation obtained by correcting the ratio of the amount of solar radiation is calculated using the weather data. A shape model data storage unit storing the position of each element representing the shape of the building;
About the evaluation object area in the building, a dimensionless solar radiation distribution data storage unit that stores a solar radiation amount ratio for each element,
Observation weather data storage unit that stores past weather data,
A program for evaluating a building using an amount of solar radiation using a building evaluation system including a control unit,
The control unit
Based on the location of the building, identify the solar position at each time,
Calculate the solar radiation amount ratio in the evaluation target area from the position of each element of the building and the position of the sun at each time,
The past meteorological data related to the installation location is acquired from the observed meteorological data storage unit, and the building is made to function as means for calculating the amount of solar radiation obtained by correcting the solar radiation amount ratio using the weather data. Evaluation program.

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