Abstract
Energy rehabilitation actions in buildings have become a great economic opportunity for the construction sector. They also constitute a strategic goal in the European Union (EU), given the energy dependence and the compromises with climate change of its member states. About 75% of existing buildings in the EU were built when energy efficiency codes had not been developed. Approximately 75% to 90% of those standing buildings are expected to remain in use in 2050. Significant advances have been achieved in energy analysis, simulation tools, and computer fluid dynamics for building energy evaluation. However, the gap between predictions and real savings might still be improved. Geomatics and computer science disciplines can really help in modelling, inspection, and diagnosis procedures. This paper presents a multi-sensor acquisition system capable of automatically and simultaneously capturing the three-dimensional geometric information, thermographic, optical, and panoramic images, ambient temperature map, relative humidity map, and light level map. The system integrates a navigation system based on a Simultaneous Localization and Mapping (SLAM) approach that allows georeferencing every data to its position in the building. The described equipment optimizes the energy inspection and diagnosis steps and facilitates the energy modelling of the building.
Highlights
Energy building rehabilitation has become an opportunity for the European construction sector, which has suffered strongly from the economic crisis of previous years
The system integrates a navigation system based on a Simultaneous Localization and Mapping (SLAM) approach that allows georeferencing every data to its position in the building
The system is equipped with laser scanners, thermographic and optical cameras, 360°
Summary
Energy building rehabilitation has become an opportunity for the European construction sector, which has suffered strongly from the economic crisis of previous years. TLS can be successfully used in façade modelling These are line-of-sight instruments and they have a limited measurement range, multiple scans from different viewpoints are needed in order to ensure the full coverage of a complex environment, like indoor scenarios. Understanding surroundings and a local environment without prior description of it This approach is useful for indoor navigation and inspection purposes since a campaign can be accomplished without the need of explorations or maps of the area to be analyzed. The recently-developed Simultaneous Localization And Mapping (acronym: SLAM) technique uses imaging sensors to extract the navigation information and to reconstruct the 3D environment data. It mainly consists in building the map by themselves.
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