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

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

研究目的如下：1）建立日光光源模型，通过气象测量的大气参数来表达天气、时间和季节的波动。2）提高我自己的基于静止气象卫星图像的准实时日光模型的精度。3）建立尽可能利用自然光的“可持续日光”，为人们提供舒适的光环境。 在两年的时间里，进行了以下研究：a）每隔 5 分钟自动测量云量：使用我自己的视频比色技术，通过分光比色计对带有鱼眼镜头的数码相机进行比色校准。整个天空被捕获为圆形天空图像，该图像被转换为​​亮度和相关色温分布的绝对值。云量是用亮度和相关温度的阈值来计算的。b)以60分钟为间隔估计天空亮度分布：开发了新的天空亮度模型。该模型由气溶胶的光学散射、折射和反射过程组成。大气参数由静止气象卫星图像决定。c)开发与天空亮度分布同时运行的日光控制系统：通过使用另一台带有鱼眼镜头的数码相机测量天空亮度分布，计算出有窗户的房间内的照度分布。最低限度的人工照明被调暗，以弥补与标准照度要求相比的照度不足。实验验证了该系统的可行性。利用每年天空亮度实测数据进行的模拟表明，大约可以节省50%的电力。 d) 上述卫星图像的天空亮度模型与日光控制系统的结合：虽然60分钟的间隔比数码相机长，但地球静止气象卫星图像覆盖了全世界。初始成本和运行成本低于光传感器。模拟表明，环境照明能够由联合系统控制。较少的

项目成果

静止気象衛星画像を用いた全天空輝度分布の推定に関する研究(その2 全天空輝度分布の推定および推定精度の検証)

利用静止气象卫星影像估计全天亮度分布的研究（第2部分全天亮度分布估计及估计精度验证）

• 发表时间: 2007
• 期刊: 日本建築学会近畿支部研究報告集・環境系 第47号(印刷中)
• 作者: 嘉門隆史;上谷芳昭;吉田治典
• 通讯作者: 吉田治典

A Fundamental Study on Estimation of All Sky Luminance Distribution by Geostational Meteorological Satellite Images

对地气象卫星影像估算全天空亮度分布的基础研究

• 发表时间: 2006
• 期刊: Proceedings of AIJ Kinki Chapter Architectural Research Meeting Vol.46
• 作者: KAMON Takashi;UETANI Yoshiaki;NISHIO Nobuhiro;YOSHIDA Harunori
• 通讯作者: YOSHIDA Harunori

ビデオ測色法による雲の観測に関する基礎的研究

视频比色法云观测基础研究

• 发表时间: 2005
• 期刊: 日本建築学会近畿支部研究報告集 45(9月12日)
• 作者: 嘉門隆史;上谷芳昭;吉田治典;西尾信寛
• 通讯作者: 西尾信寛

A Study on the Estimation of All Sky Luminance Distribtion with the Geostational Meteological Satellite Images (Part 2 : Estimation of All Sky Luminance Distribtion and Accuracy of the Estimation )

利用对地气象卫星影像估算全天空亮度分布的研究（第二部分：全天空亮度分布估算及估算精度）

• 发表时间: 2007
• 期刊: Proceedings of AIJ Kinki Chapter Architectural Research Meeting Vol.47 (to be published)
• 作者: KAMON Takashi;UETANI Yoshiaki;YOSHIDA Harunori
• 通讯作者: YOSHIDA Harunori

Fundamental Study on Cloud Observation with Video Colorimetry

视频比色云观测基础研究

• 发表时间: 2005
• 期刊: Proceedings of AIJ Kinki Chapter Architectural Research Meeting Vol.46
• 作者: KAMON Takashi;UETANI Yoshiaki;YOSHIDA Harunori;NISHIO Nobuhiro
• 通讯作者: NISHIO Nobuhiro