Worldwide, energy consumption and saving represent the main challenges for all sectors, most importantly in industrial and domestic sectors. The internet of things (IoT) is a new technology that establishes the core of Industry 4.0. The IoT enables the sharing of signals between devices and machines via the internet. Besides, the IoT system enables the utilization of artificial intelligence (AI) techniques to manage and control the signals between different machines based on intelligence decisions. The paper's innovation is to introduce a deep learning and IoT based approach to control the operation of air conditioners in order to reduce energy consumption. To achieve such an ambitious target, we have proposed a deep learning-based people detection system utilizing the YOLOv3 algorithm to count the number of persons in a specific area. Accordingly, the operation of the air conditioners could be optimally managed in a smart building. Furthermore, the number of persons and the status of the air conditioners are published via the internet to the dashboard of the IoT platform. The proposed system enhances decision making about energy consumption. To affirm the efficacy and effectiveness of the proposed approach, intensive test scenarios are simulated in a specific smart building considering the existence of air conditioners. The simulation results emphasize that the proposed deep learning-based recognition algorithm can accurately detect the number of persons in the specified area, thanks to its ability to model highly non-linear relationships in data. The detection status can also be successfully published on the dashboard of the IoT platform. Another vital application of the proposed promising approach is in the remote management of diverse controllable devices.
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http://dx.doi.org/10.3390/s21041038 | DOI Listing |
Sci Rep
January 2025
Laboratorio de Microbiología Ambiental y Suelos, Unidad de Investigaciones Agropecuarias (UNIDIA), Departamento de Microbiología, Facultad de Ciencias, Pontificia Universidad Javeriana, P.O. Box 110‑23, Bogotá, DC, Colombia.
Globally, the companies that make commercial use of bamboo culms produce different kinds of solid waste rich in lignocellulosic biomass, which in some cases is not used and is discarded in landfills or incinerated in the open air; losing the possibility of recovering them and using them in other productive sectors. The research objective were to produce a biochar from Guadua agustifolia Kunth sawdust, evaluate its potential environmental and agricultural use, obtain a biochar/TiO composite to inactivate Escherichia coli and use the biochar as a soil conditioner in medicinal plants producing phenolic compounds and flavonoids. Biochar composite (produced at 300 °C for 1 h) involved TiO at 450 °C for 1 h for inactivation of E.
View Article and Find Full Text PDFEnviron Int
December 2024
School of the Environment, Yale University, 195 Prospect St, New Haven, CT 06511, USA; Interdisciplinary Program in Precision Public Health, Department of Public Health Sciences, Graduate School of Korea University, Seoul, 145 Anam-ro, Anam-dong 3-ga, Seongbuk-gu, Seoul 02841, South Korea.
Biological and psychological theories suggest complex impacts of heat on aggression and violence. Most previous studies considered temporal intervals of months to years and assumed linear associations. Evidence is needed on daily impacts of temperature on crime, applying non-linear models across different locations.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China. Electronic address:
Developing an efficient and economical indoor air purification system for catalytic decomposition of formaldehyde is of great significance. In this work, an indoor air conditioner capable of purifying formaldehyde was designed by directly integrating defective WO/TiO nanotube catalytic fin, with both thermal conductivity and gas-phase photoelectrocatalytic (GPEC) properties, onto the condenser component. The electrochemical treatment of the catalytic fin introduced a substantial number of oxygen vacancies, resulting in a significant increase in carrier concentration and mobility to the semi-metallic level.
View Article and Find Full Text PDFEnviron Sci Pollut Res Int
December 2024
Department of Engineering, College of Engineering and Technology, University of Technology and Applied Sciences, Musandam, PC, 811, Oman.
Among the numerous residential appliances, window or split air conditioners are the most prevalent. The hydrochlorofluorocarbon and hydrofluorocarbon refrigerants used in those systems are causing a serious threat to the environment. In this study, R290-hydrofluoroolefin (HFO) mixtures are proposed as replacements for high-GWP substances (R410A and R22) in window air conditioning (WAC) units.
View Article and Find Full Text PDFMaterials (Basel)
December 2024
Institute for Precious and Technology Metals, Pforzheim University, 75175 Pforzheim, Germany.
Nd-Fe-B-type permanent magnets, containing approximately 30% critical rare-earth elements by weight, are essential components in renewable energy systems (e.g., wind turbines, hydroelectric generators) and electric vehicles.
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