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[IEEE 2018 26th International Conference on Geoinformatics - Kunming (2018.6.28-2018.6.30)] 2018 26th International Conference on Geoinformatics - Multilevel Solar Potential Analysis of Building Based on Ubiquitous Point Clouds
摘要： Solar potential analysis is essential for Building Information Modeling (BIM) applications, like photovoltaic installation. The estimation of solar potential on rooftops has been widely discussed, whereas the study on fa?ade is still limited. Benefit from the development of various sensors, ubiquitous point clouds are now widely and easily captured by photogrammetry, laser scanning or other technologies, to represent the building geometry. This paper proposes a method for solar potential analysis on both rooftops and fa?ades, using ubiquitous point cloud collected by Unmanned Aerial Vehicle (UAV) and Terrestrial Laser Scanning (TLS). One building with different orientations is selected for the case study. Results show that the proposed method is valid for multilevel solar potential analysis of buildings.
关键词： laser scanning,solar potential,ubiquitous point cloud,Building Information Modeling (BIM)
更新于2025-09-23 15:23:52
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IoT-Enabled Light Intensity-Controlled Seamless Highway Lighting System
摘要： Geotechnical investigation is essentially a process of information acquisition, analysis, and application. Informatization is an attractive way to improve the efficiency of geotechnical investigation. Typical approaches divide the process of geotechnical investigation into isolated stages and only focus on the local informatization of the entire process. This leads to limitations in the improvement of geotechnical investigation efficiency, misuse of geotechnical data, and interpreted results that are incorrect. Therefore, a work flow and operational mode to address the informatization throughout the overall process of geotechnical investigation is particularly important in developing a software designed for efficient and precise geotechnical investigations. In this paper, we design a work flow and operational mode for geotechnical investigation based on a geotechnical BIM model and database. Within this work flow, the construction of a 3-D geotechnical information model and BIM-based database is taken as the main line. The constantly updated model and the database are the platform for working and analysis. As this strategy can link every stage in the whole process of geotechnical investigation, all the work can be done based on the BIM model and database in a 3-D environment, so improvement in the overall efficiency of geotechnical investigation is possible. Furthermore, the integrative center combined by the BIM model and database is targeted to reduce data errors, data conversions, and the abstractness of geotechnical data, which can improve the interpreted accuracy of these data. Finally, we use the process of geotechnical investigation at a hydropower station for experimental studies to verify the proposed work flow and operational mode. The result shows that it is feasible to design the software for an efficient and more accurate geotechnical investigation based on the proposed work flow and operational mode.
关键词： geotechnical data,Geotechnical investigation,BIM,three-dimensional model
更新于2025-09-23 15:21:01
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[IEEE 2019 22nd International Conference on Electrical Machines and Systems (ICEMS) - Harbin, China (2019.8.11-2019.8.14)] 2019 22nd International Conference on Electrical Machines and Systems (ICEMS) - A Bus Voltage Regulation Strategy without Communication for Improving Efficiency of Photovoltaic Series-Connected Power Optimizer System
摘要： Geotechnical investigation is essentially a process of information acquisition, analysis, and application. Informatization is an attractive way to improve the efficiency of geotechnical investigation. Typical approaches divide the process of geotechnical investigation into isolated stages and only focus on the local informatization of the entire process. This leads to limitations in the improvement of geotechnical investigation efficiency, misuse of geotechnical data, and interpreted results that are incorrect. Therefore, a work flow and operational mode to address the informatization throughout the overall process of geotechnical investigation is particularly important in developing a software designed for efficient and precise geotechnical investigations. In this paper, we design a work flow and operational mode for geotechnical investigation based on a geotechnical BIM model and database. Within this work flow, the construction of a 3-D geotechnical information model and BIM-based database is taken as the main line. The constantly updated model and the database are the platform for working and analysis. As this strategy can link every stage in the whole process of geotechnical investigation, all the work can be done based on the BIM model and database in a 3-D environment, so improvement in the overall efficiency of geotechnical investigation is possible. Furthermore, the integrative center combined by the BIM model and database is targeted to reduce data errors, data conversions, and the abstractness of geotechnical data, which can improve the interpreted accuracy of these data. Finally, we use the process of geotechnical investigation at a hydropower station for experimental studies to verify the proposed work flow and operational mode. The result shows that it is feasible to design the software for an efficient and more accurate geotechnical investigation based on the proposed work flow and operational mode.
关键词： BIM,geotechnical data,three-dimensional model,Geotechnical investigation
更新于2025-09-19 17:13:59
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[IEEE 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Chicago, IL, USA (2019.6.16-2019.6.21)] 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) - Performance assessment of field deployed multi-crystalline PV modules in Nordic conditions
摘要： Geotechnical investigation is essentially a process of information acquisition, analysis, and application. Informatization is an attractive way to improve the efficiency of geotechnical investigation. Typical approaches divide the process of geotechnical investigation into isolated stages and only focus on the local informatization of the entire process. This leads to limitations in the improvement of geotechnical investigation efficiency, misuse of geotechnical data, and interpreted results that are incorrect. Therefore, a work flow and operational mode to address the informatization throughout the overall process of geotechnical investigation is particularly important in developing a software designed for efficient and precise geotechnical investigations. In this paper, we design a work flow and operational mode for geotechnical investigation based on a geotechnical BIM model and database. Within this work flow, the construction of a 3-D geotechnical information model and BIM-based database is taken as the main line. The constantly updated model and the database are the platform for working and analysis. As this strategy can link every stage in the whole process of geotechnical investigation, all the work can be done based on the BIM model and database in a 3-D environment, so improvement in the overall efficiency of geotechnical investigation is possible. Furthermore, the integrative center combined by the BIM model and database is targeted to reduce data errors, data conversions, and the abstractness of geotechnical data, which can improve the interpreted accuracy of these data. Finally, we use the process of geotechnical investigation at a hydropower station for experimental studies to verify the proposed work flow and operational mode. The result shows that it is feasible to design the software for an efficient and more accurate geotechnical investigation based on the proposed work flow and operational mode.
关键词： geotechnical data,Geotechnical investigation,BIM,three-dimensional model
更新于2025-09-16 10:30:52
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Integration of point cloud data and hyperspectral imaging as a data gathering methodology for refurbishment projects using building information modelling (BIM)
摘要： Purpose – Building information modelling (BIM) is a digital representation of the physical and functional characteristics of a building. Its use offers a range of bene?ts in terms of achieving the ef?cient design, construction, operation and maintenance of buildings. Applying BIM at the outset of a new build project should be relatively easy. However, it is often problematic to apply BIM techniques to an existing building, for example, as part of a refurbishment project or as a tool supporting the facilities management strategy, because of inadequacies in the previous management of the dataset that characterises the facility in question. These inadequacies may include information on as built geometry and materials of construction. By the application of automated retrospective data gathering for use in BIM, such problems should be largely overcome and signi?cant bene?ts in terms of ef?ciency gains and cost savings should be achieved. Design/methodology/approach – Laser scanning can be used to collect geometrical and spatial information in the form of a 3D point cloud, and this technique is already used. However, as a point cloud representation does not contain any semantic information or geometrical context, such point cloud data must refer to external sources of data, such as building speci?cation and construction materials, to be in used in BIM. Findings – Hyperspectral imaging techniques can be applied to provide both spectral and spatial information of scenes as a set of high-resolution images. Integrating of a 3D point cloud into hyperspectral images would enable accurate identi?cation and classi?cation of surface materials and would also convert the 3D representation to BIM. Originality/value – This integrated approach has been applied in other areas, for example, in crop management. The transfer of this approach to facilities management and construction would improve the ef?ciency and automation of the data transition from building pathology to BIM. In this study, the technological feasibility and advantages of the integration of laser scanning and hyperspectral imaging (the latter not having previously been used in the construction context in its own right) is discussed, and an example of the use of a new integration technique is presented, applied for the ?rst time in the context of buildings.
关键词： Laser scanning,Information modelling,Refurbishment,BIM,Point cloud,Hyperspectral imaging
更新于2025-09-10 09:29:36