Journal
BUILDING AND ENVIRONMENT
Volume 203, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.buildenv.2021.108014
Keywords
Indoor Environmental Quality (IEQ); Sensor fusion; Multimodal; Internet of Things (IoT); Building performance
Funding
- European Regional Development Fund (ERDF) Intensive Industrial Innovation Programme [25R17P01847]
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The monitoring of Indoor Environmental Quality (IEQ) is becoming increasingly important for health and wellbeing, with new building standards and climate targets creating a need for scalable monitoring solutions. Low-cost MEMS sensors have the potential to address these needs and enable the development of bespoke multimodal devices. Studies have shown that these devices have good inter-sensor reliability and agreement, making them fit-for-purpose for continuous IEQ monitoring.
Monitoring Indoor Environmental Quality (IEQ) is of growing interest for health and wellbeing. New building standards, climate targets and adoption of homeworking strategies are creating needs for scalable, monitoring solutions with onward Cloud connectivity. Low-cost Micro-Electromechanical Systems (MEMS) sensors have potential to address these needs, enabling development of bespoke multimodal devices. Here, we present insights into the development of a MEMS-based Internet of things (IoT) enabled multimodal device for IEQ monitoring. A study was conducted to establish the inter-device variability and validity to reference standard sensors/devices. For the multimodal, IEQ monitor, intraclass correlations and Bland-Altman analyses indicated good inter-sensor reliability and good-to-excellent agreement for most sensors. All low-cost sensors were found to respond to environmental changes. Many sensors reported low accuracy but high precision meaning they could be calibrated against reference sensors to increase accuracy. The multimodal device developed here was identified as being fit-for-purpose, providing general indicators of environmental changes for continuous IEQ monitoring.
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