Development of the Standard Daylight Source Model Based on the Cloud Property and Estimation of the Solar Energy by the Geostational Meteological Satellite Images.

基于云特性的标准日光源模型的建立和对地气象卫星图像的太阳能估计。

• 批准号: 17560530
• 负责人: UETANI Yoshiaki
• 金额: $ 2.3万
• 依托单位: Kyoto University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-17560530/
• 关键词: daylighting; energy saving; sky luminance; meteorological satellite; cloud amount; daylight control system; Video-Colorimetry; Sustainable Daylighting; ビテオ測色法; 相関色温度; 標準昼光気象モデル; 輝度分布; 昼光照明制御; daylighting; energy saving; sky luminance; meteorological satellite; cloud amount; daylight control system; Video-Colorimetry; Sustainable Daylighting; ビテオ測色法; 相関色温度; 標準昼光気象モデル; 輝度分布; 昼光照明制御

The purposes of the research are as follows :1)To develop the daylight source model which expresses the fluctuations of weather, time, and season by the meteorologically measured atmospheric parameters.2)To improve the accuracy of my own quasi-real time daylight model based on the geostationary meteorological satellite images.3)To establish the "Sustainable Daylighting" which utilizes the natural light as much as possible, provides the comfortable luminous environment to the people, and reduce the CO2 emission.In two years, the following research were conducted :a)Automatic cloud amount measurement with 5 minutes intervals : A digital camera with a fisheye lens is colorimetrically calibrated by a spectro-colorimeter using my own Video-Colorimetry technique. The whole sky is captured as a circle sky image which is converted to the absolute values of distributions of luminance and correlated color temperature. The cloud amount is counted with the thresholds of luminance and correlated co … More lor temperature.b)Estimation of the sky luminance distribution with 60 minutes intervals: The new sky luminance model is developed. The model is composed of optical scattaring, refraction and reflection processes of aerosol. The atmospheric parameters are decided by the geostationary meteorological satellite images.c)Development of the daylight control system operating simultaneously with the sky luminance distribution : By measuring the sky luminance distribution using the another digital camera with a fisheye lens, the illuminance distribution in a room with windows are calculated. The minimum artificial lightings are dimmed to add the shortfall of the illuminance compared to the standard illuminance requirement. The experiment appealed the feasibility of the system. The simulation using annual measured data of sky luminance showed about 50% of electric power could be saved.d) Combine of the sky luminance model by the satellite images and daylight control system above mentioned : Though 60 minutes intervals is longer than the digital camera, the geostationary meteorological satellite images cover the world. The initial and running costs are lower than light sensors. The simulations showed that ambient lightings are able to be controlled by the combine system. Less

研究的目的如下：1）开发日光源模型，该模型通过气象学测量的大气参数来表达天气，时间和季节的波动。2）为了提高我的准真实时光模型的准确性。基于geostationary selecationary satliets sage的准确性。人们，并减少二氧化碳的发射。在两年内，进行了以下研究：a）使用我自己的视频彩色仪技术，通过光谱 - 色计对带有鱼眼镜头的数字摄像机进行比色测定。整个天空被捕获为圆形天空图像，将其转换为亮度和相关色温的分布的绝对值。云量与亮度和相关性的阈值进行计数。B）估计天空亮度分布的时间为60分钟：开发了新的天空亮度模型。该模型由气溶胶的光学cat骨，折射和反射过程组成。大气参数是由地静止的气象卫星图像决定的。c）日光控制系统与天空亮度分布同时运行：通过使用带有鱼眼镜的其他数码相机测量天空亮度分布，计算了带有窗户的房间中的照明镜头。与标准照明要求相比，最小人造照明的最小人造照明会增加照明的不足。实验似乎是系统的可行性。使用卫星图像和上面提到的日光控制系统结合了Sky Luminance模型的模拟，显示了大约50％的电力。初始成本和运行成本低于光传感器。模拟表明，环境照明能够由组合系统控制。较少的