From Linked Building Data Community Group
- Title: Sound monitoring for determination of occupancy to improve building energy management and efficiency
- Description: Shopping malls and airport terminal buildings have visitor and passenger areas with variable occupant density. Currently the climate of these buildings is usually controlled by reactive temperature, CO2 and humidity sensors. This use case concerns the use of acoustic sensors in addition to the already installed sensory equipment within Building Management System (BMS) to measure the occupancy level and proactively control Heating, Ventilation, Air Conditioning and Lighting (HVACL) systems of real building environments in an attempt to reduce the energy consumption of these buildings.
- Data Domain(s): Building Devices, Building Control, Energy
- Objectives: Automatic energy curve optimization
- Stakeholders: Automation Server/Control System
- Requirements: An ICT network of low-cost audio sensors and acoustic information processing technologies integrated with already installed Building Management Systems (BMS) and building controls.
- LD benefits: Structured vocabularies allow gathering, dispatching, and treating (data fusion) the occupancy information.
- Challenges:
- Handling of ambient noise levels and a high amount of reverberation in large rooms.
- Finding suitable audio signal descriptors for each interval in the metric to automatically differentiate between them.
