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Alaserdynamicanalysismethodforprecisemeasurementofbuildingsandurbanspaces

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Registration number:G20250756

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Key words: Urban space precise measurement dynamic analysis

Green classification:

Publisher:管理人员

Release time:2025-08-09 08:59:38.0

  • Essential information
Name of achievement: Alaserdynamicanalysismethodforprecisemeasurementofbuildingsandurbanspaces
Result registration number: G20250756 Subject classification:
Green classification: Item keywords: Urban space   precise measurement   dynamic analysis    
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Tongji University

The stage of achievement:
Mode of cooperation: Outcome Information:
Countries/regions: Shanghai Intellectual property rights: Invention patent, utility model patent, others
Introduction: Click to view
This project is a result of energy-saving building technology. With the continuous improvement of people's living standards, the requirements for the living environment in residential areas have evolved from "everyone has a house" to "everyone enjoys a good house." In past residential area planning, designers have overly focused on whether the functional zoning of the overall plan is reasonable, whether the layout is beautiful, and whether the spatial relationships are rich. However, the study of wind environment within residential areas has been rarely mentioned due to its invisibility, intangibility, or lack of necessary research methods. This has led to increased energy consumption and decreased comfort in residential areas. This project aims to apply for a national invention patent technology, targeting the current issues of high energy consumption and poor comfort in urban residential buildings. It focuses on leveraging projects such as the High-Density Human Settlements Ecology and Energy Saving Key Laboratory Construction Plan, National Natural Science Foundation, and the National "Twelfth Five-Year" National Science and Technology Support Plan. Through multi-departmental collaboration involving industry, academia, and research institutions, Through collaborative research and comprehensive integration demonstration, innovative and integrated achievements have been formed, covering architectural surveying, urban spatial analysis, wind environment simulation technology, etc. Key technical bottlenecks in PDA testing technology, precise measurement techniques for buildings and urban spaces, and laser dynamic analysis methods have been broken through. The main innovative achievements of the project are as follows: (1) In terms of PDA measurement system technology, it was innovatively proposed for the first time to use an argon ion laser that emits a mixed laser beam through an incident optical system composed of a beam splitter and a transmitting lens. The laser beam emitted by the laser is divided into two or more beams by the beam splitter, which are then focused onto the flow field to form a measurement control body where multiple beams intersect. The introduction of the receiving optical system allows for the determination of particle velocity, thereby improving the accuracy of spatial measurement and effectively solving the problem of spatial measurement. (2) In the field of PDA laser dynamic analysis technology, for the first time, a novel approach was proposed to simulate urban space by establishing a scaled-down model structure within a fixed flow field. This is achieved by blowing simulated natural wind into the flow field to mimic the environmental conditions around the city space. It successfully addresses the current practice of urban architectural space wind environment design based on experience. (3) In the field of particle image velocimetry technology, for the first time, a novel approach was proposed to use this technique to quickly, reliably, and accurately provide relevant data about the spatial environment of buildings themselves and the interrelationships between buildings within urban spaces. This technology has solved many problems in China's current urban planning stage. The project has been granted 8 authorized invention patents, published 1 monograph, and over 40 important academic papers at home and abroad, including 2 SCI-indexed articles. SSCI retrieval: 1 article, EI retrieval: 15 articles. This technology improves the accuracy of experiments and reality by concentrating the intersection points of blue, green, and purple light at a single point of 0.2mm. The incident optical system and receiving optical system are installed at a horizontal height of 1000mm and a distance of 300mm from the experimental flow field, which is 1000mm away. According to the novelty search report issued by the Shanghai Science and Technology Information Consulting Center of the Chinese Academy of Sciences on July 10, 2014, with the report number 20142934, the conclusion is that the project's research and development are novel. The comprehensive technology of this project has reached a leading domestic level and an international advanced level. The project's achievements have been successfully applied in multiple large-scale high-end residential areas such as Mudanjiang in Heilongjiang Province, Ma'anshan and Wuhu in Anhui Province. Among them, the direct economic benefits realized in the Mudanjiang Oasis Spring City project amount to 172.55 million yuan. A savings of 76.4 million yuan has been achieved. As its promotion and application continue, it will generate greater economic and social benefits. The project results have promoted the development of urban spatial environment design technology. It also provides scientific and technical support for China to improve residential energy-saving environments in the future, with broad application prospects.
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