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Development of the Thermal Environment Mesaurement System in Outdoor Space Using Multi-Spectral and Three-Dimensional Thermography

多光谱三维热成像室外热环境测量系统的研制

基本信息

批准号：
09555179
负责人：
HOYANO Akira
金额：
$ 2.56万
依托单位：
TOKYO INSTITUTE OF TECHNOLOGY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09555179/
关键词：
Multi-Spectral Thermograph Infrared Imaging Spherical Thermograph Three Dimensional Thermograph Outdoor Thermail Environment Long Wave Radiant Field Street Space Surrounded Space 赤外線放射カメラ単写真標定遺伝的アルゴリズム 3次元幾何情報建築外部空間

项目摘要

A new three-dimensional (3D) thermography system was developed for analyzing thermal environment of the complex outdoor space containing man-made structures. 3D thermography is realized by combining thermography and three-dimensional geometric information (3DGI).Until now, it has been difficult to realize a practical 3D thermography system for two reasons. One is that the visual plane of commercially available thermal infrared cameras is limited and the other is that corresponding reference points for thermography and 3DGI are difficult to establish. Thus, a new equipment was developed for obtaining thermography in which the visual plane is extended to a spherical field (4psr) and a new method is proposed for combining it with 3DGI.The long wave radiant field was evaluated using the spherical thermography technique. Four urban street spaces were chosen for comparison based mainly on differences in upper side condition. Evaluations were conducted during good weather on summer days. The measurement results indicate that long wave radiant field is directly influenced by the design characteristics of the urban space. The present study confirmed the usefulness of spherical thermography for evaluating the long wave radiant field.

针对室外复杂人工建筑空间的热环境分析，开发了一种新的三维热成像系统。三维热成像是将热成像技术与三维几何信息相结合来实现的，但由于两个原因，目前实现一个实用的三维热成像系统还比较困难。一个是商用热红外相机的可视平面有限，另一个是难以建立用于热成像和3DGI的对应参考点。为此，研制了一种将视平面扩展为球面场（4psr）的热成像装置，并提出了一种将其与三维数字成像技术相结合的新方法，利用球面热成像技术对长波辐射场进行了评估。选取了四个城市街道空间进行比较，主要是基于上侧条件的差异。评价是在夏季天气好的时候进行的。测量结果表明，城市空间设计特征直接影响长波辐射场。本研究证实了球面热图用于评估长波辐射场的有用性。