scholarly journals A Wireless Gas Sensor Network to Monitor Indoor Environmental Quality in Schools

Sensors ◽  
2018 ◽  
Vol 18 (12) ◽  
pp. 4345 ◽  
Author(s):  
Alvaro Ortiz Perez ◽  
Benedikt Bierer ◽  
Louisa Scholz ◽  
Jürgen Wöllenstein ◽  
Stefan Palzer
Keyword(s):  
Sensor Network ◽  
Gas Sensor ◽  
Environmental Quality ◽  
Energy Savings ◽  
Environmental Parameters ◽  
Well Being ◽  
Sensor Nodes ◽  
Indoor Environmental Quality ◽  
Monitoring And Control ◽  
And Control

Schools are amongst the most densely occupied indoor areas and at the same time children and young adults are the most vulnerable group with respect to adverse health effects as a result of poor environmental conditions. Health, performance and well-being of pupils crucially depend on indoor environmental quality (IEQ) of which air quality and thermal comfort are central pillars. This makes the monitoring and control of environmental parameters in classes important. At the same time most school buildings do neither feature automated, intelligent heating, ventilation, and air conditioning (HVAC) systems nor suitable IEQ monitoring systems. In this contribution, we therefore investigate the capabilities of a novel wireless gas sensor network to determine carbon dioxide concentrations, along with temperature and humidity. The use of a photoacoustic detector enables the construction of long-term stable, miniaturized, LED-based non-dispersive infrared absorption spectrometers without the use of a reference channel. The data of the sensor nodes is transmitted via a Z-Wave protocol to a central gateway, which in turn sends the data to a web-based platform for online analysis. The results show that it is difficult to maintain adequate IEQ levels in class rooms even when ventilating frequently and that individual monitoring and control of rooms is necessary to combine energy savings and good IEQ.

The Study of Quality Monitoring and Control for Laser Cutting Based on Pulse-Induced Acoustic Sound

2012 ◽  
Vol 182-183 ◽  
pp. 422-426 ◽  
Author(s):  
Hui Juan Hao ◽  
Guang He Cheng ◽  
Ji Yong Xu
Keyword(s):  
Adaptive Control ◽  
Laser Cutting ◽  
Cutting Speed ◽  
Processing Parameters ◽  
Wavelet Denoising ◽  
Quality Monitoring ◽  
Monitoring And Control ◽  
Time Frequency ◽  
And Control ◽  
The Impact

In this paper, the pulse-induced acoustic sound in laser cutting is collected, and the data processing is performed with wavelet denoising and time-frequncy analyzing. The impact of laser processing parameters on the acoustic signal is discussed; and further analysis of the effect of cutting speed is conducted. The corresponding relationship between the best velocity and the maximum time-frequency energy density is got; also the plan of adaptive control in laser cutting is designed. The results in this paper can provide important parameters for adaptive control of laser cutting.

scholarly journals Legal and formal analysis of chosen provisions of Directive 2009/30/EC and of the Act of 25 August 2006 on the fuel quality monitoring and control system

2019 ◽  
Vol 29 ◽  
pp. 171-181
Author(s):  
Weronika Gadzicka
Keyword(s):  
Control System ◽  
Formal Analysis ◽  
Quality Monitoring ◽  
Fuel Quality ◽  
Monitoring And Control ◽  
Monitoring And Control System ◽  
The Subject ◽  
Business Entities ◽  
Economic Analyses ◽  
And Control

The Directive 2009/30/EC and the Polish Act on the fuel quality monitoring and control system imposes a duty on the entities fulfilling the National Reduction Target NRT to reduce the emission of greenhouse gases to 6%. The reduction target of at least 6% can not be spread over the entire fuel market. It applies to every entity implementing the NRT separately. Member States, as well as the fuel market, are not responsible for not achieving the reduction target. This responsibility is limited to individual business entities implementing the NRT and concerns the fulfillment of the reduction target and the providing of the report on the implementation of the reduction target. It is necessary to carry out technical and economic analyses, the subject of which should be to answer the question of whether the entities realising the NRT are able to predict the potential amount of the fine that may be imposed on them based on art. 35c section 3 of the Act. Analiza prawna i formalna wybranych przepisów dyrektywy 2009/30/WE i ustawy z dnia 25 sierpnia 2006 roku o systemie monitorowania i kontroli jakości paliwDyrektywa 2009/30/WE oraz ustawa o systemie monitorowania i kontroli jakości paliw nakładają na podmioty spełniające Narodowy Cel Redukcyjny obowiązek obniżenia emisji gazów cieplarnianych do 6%. Cel redukcji wynoszący co najmniej 6% nie może być rozłożony na cały rynek paliw — dotyczy to każdego podmiotu wdrażającego NCR oddzielnie. Państwa członkowskie, jak też rynek paliw, nie ponoszą odpowiedzialności w wypadku nieosiągnięcia tegoż celu redukcyjnego. Odpowiedzialność ta jest ograniczona do poszczególnych podmiotów gospodarczych realizujących NCR i dotyczy realizacji celu redukcyjnego oraz dostarczenia sprawozdania z realizacji NCR. Konieczne jest przeprowadzenie analiz technicznych i ekonomicznych, których przedmiotem powinno być udzielenie odpowiedzi na pytanie, czy podmioty realizujące NRT są w stanie przewidzieć potencjalną kwotę grzywny, jaka może zostać na nie nałożona na podstawie art. 35c ust. 3 ustawy.

scholarly journals A Review - Water Quality Monitoring System

2019 ◽  
Author(s):  
R. J. Sapkal ◽  
Pooja Wattamwar ◽  
Rani Waghmode ◽  
Umrunnisa Tamboli
Keyword(s):  
Water Quality ◽  
Water Level ◽  
Water System ◽  
Water Quality Monitoring ◽  
Quality Monitoring ◽  
Network Coverage ◽  
Monitoring And Control ◽  
Water Sensor ◽  
And Control ◽  
System Prototype

This paper describes the main reason for need of effective and efficient water level monitoring and control of water quality in flat system tends to keeping the human resources healthy and sustainable, and to reduce the usage of water for household purposes. Due to climate changes and variability so many huge impacts are caused by the water system to the natural environment. Incredible methods are used by collecting water samples, testing and analyses in water laboratories alone. However, It is not always easy to be captured, analyses and fast dissemination of information to relevant users for making timely and well-versed decisions. In this project Water Sensor System prototype is developed for water level and quality monitoring in society is presented. These kind of growth was introduced by the assessment of widespread atmosphere that Including accessibility of cellular network Coverage at the site of process.

scholarly journals mHealth: Indoor Environmental Quality Measuring System for Enhanced Health and Well-Being Based on Internet of Things

2019 ◽  
Vol 8 (3) ◽  
pp. 43 ◽  
Author(s):  
Gonçalo Marques ◽  
Rui Pitarma
Keyword(s):  
Mobile Computing ◽  
Real Time ◽  
Environmental Quality ◽  
Mobile Health ◽  
Well Being ◽  
Living Environment ◽  
Clinical Diagnostics ◽  
Quality Monitoring ◽  
Indoor Environmental Quality ◽  
Health And Well Being

Mobile health research field aims to provide access to healthcare anytime and anywhere through mobile computing technologies while using a cost-effective approach. Mobile health is closely related to ambient assisted living as both research fields address independence in elderly adults. Aging has become a relevant challenge, as it is anticipated that 20% of world population will be aged 60 years and older in 2050. Most people spend more than 90% of their time indoors, therefore the indoor environmental quality has a relevant impact on occupant’s health and well-being. We intended to provide real-time indoor quality monitoring for enhanced living environments and occupational health. This paper presents the AirPlus real-time indoor environmental quality monitoring system, which incorporates several advantages when compared to other systems, such as scalability, flexibility, modularity, easy installation, and configuration, as well as mobile computing software for data consulting and notifications. The results that were obtained are promising and present a significant contribution to the monitoring solutions available in the literature. AirPlus provides a rich dataset to plan interventions for enhanced indoor quality, but also to support clinical diagnostics and correlate occupant’s health problems with their living environment conditions.

Quality Monitoring and Control of the Publicity Translation System Based on Cognitive Mechanism

2014 ◽  
Vol 1006-1007 ◽  
pp. 390-393
Author(s):  
Ke Chen ◽  
Fang Lei Li
Keyword(s):  
Evaluation System ◽  
Process Model ◽  
Quality Monitoring ◽  
Translation System ◽  
Generation Process ◽  
Monitoring And Control ◽  
Innovative Design ◽  
Creative Solutions ◽  
Design Generation ◽  
And Control

Based on innovative design generation process model and innovative mechanism, this paper designs an evaluation system of the existing publicity translation frame so as to create an appropriate innovative design to implement quality monitoring and control into practice; at the same time, guided by the innovation design cognitive experiment, it also illustrates the formation of quality monitoring and control on publicity translation system. The cognitive motivation of innovation and strategy selection are discussed, and subsequently Xi'an urban publicity translation system innovation design is used as an example to confirm the presentation and the feasibility of the generated creative solutions.

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