Digital Building Model Update via Sensor Concordance
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Solution Overview
Problem
Existing digital building models often become outdated due to structural changes in physical buildings, leading to discrepancies between virtually and actually accessible areas, which can result in inaccurate person stream flow simulations and safety concerns during evacuations.
Innovation Solution
A method that captures real data from multiple data sources, including mobile and installed sensors, to update virtually accessible areas within the digital building model, ensuring concordance with the physical building's current layout and enhancing simulation accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual reading of virtually accessible areas is used to achieve concordance, then data consistency between digital and physical building can be improved, but the methodology can be semantically incorrect and the BIM/IFC data can be out of date
Solution Approach 1:
The system continuously collects real data from sensors in the physical building and compares it with the digital building model data. This feedback loop enables automatic detection of discrepancies between virtually accessible areas and real accessible areas, ensuring the BIM/IFC data remains current and accurate without manual intervention
Solution Approach 2:
The digital building model automatically updates itself by receiving real data from multiple sources including sensors and building management systems. The system self-corrects outdated information by comparing real-time sensor data with the digital model, eliminating the need for manual data reading and updating
2Measurement precision
If manual access and measurement of the physical building is performed, then concordance between virtually and real accessible areas can be improved, but high time and cost involvement is required
Solution Approach 1:
The system replaces manual mechanical measurement processes with automated sensor-based data collection. Multiple data sources including sensors, building management systems, and automated scanning devices continuously capture real data from the physical building, eliminating the need for manual access and measurement while providing continuous, real-time updates
Solution Approach 2:
Instead of periodic manual measurements, the system implements continuous automated data collection from multiple sensors and data sources. This continuous monitoring ensures the digital building model remains synchronized with the physical building at all times without requiring repeated manual interventions
Data Source
AI summary
A method for providing an updated digital building model is provided. The method includes the following steps: a) providing a digital building model for a physical building, b) ascertaining a virtually accessible area within the digital building model, c) capturing real data obtained by a number N of data sources, where N≥1, wherein the real data include data from a real accessible area within the physical building that corresponds to the virtually accessible area, and d) updating the virtually accessible area within the digital building model by the captured real data of the real accessible area to provide the updated digital building model. This means that when there is a need to evacuate a physical building, there are updated virtually accessible areas present, and hence these can be taken as a basis for providing an updated evacuation plan for evacuating people.