instrumentação inteligente para agricultura e monitoramento ambiental
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1Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Instrumentação inteligente para agricultura e monitoramento ambiental
Antonio Marcus Nogueira Lima
UFCG/CEEI/DEE
Campina Grande, PB
2Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Instrumentação Inteligente
• Instrumentação– Transdutores– Dados essenciais – Sistema de Controle & Automação
• Inteligente– Atributos de inteligência
• Conectividade
• Adaptação
• Autonomia• Estruturação
3Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
IEEE/ISO/IEC Standard
4Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
STIM & NCAP
5Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
IEEE Standards
6Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Tipos de medições
• Vento - velocidade e direção• Chuva• Temperatura• Umidade• Pressão• Radiação solar• Temperatura do solo• Umidade do solo• VOCs (e.g.: humanos: saliva, …; plantas: …)
7Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Biosensor: what is it?
A biosensor is a compact analytical device, incorporating a biological or biologically-derived sensing element either integrated within or intimately associated with a physicochemical transducer.
It is a multidisciplinary r&d problem: biology, biochemistry, electrochemistry, microfluidics, physical chemistry, electromagnetics, electronics, control system, system identification, and software engineering.
It is fun to work with!
It is important for human health-care, food quality control and environmental monitoring
It has a big market: 2012/US$8.0 billion - 2018/US$19.0 billion
8Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Biosensor block diagram
The biocatalyst (a) is the biological sensing element, which interacts (converts/binds) specifically with the incoming substrate/analyte S (blood, serum, urine, etc) to form a chemical product, complex or bond P, by triggering a specific chemical reaction. This reaction is determined/detected by the physico-chemical transducer (b). The output from the transducer is amplified (c), processed (d) and displayed (e)
9Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
The biocatalyst must be highly specific for the purpose of the analyses, stable for sufficiently long time under normal storage conditions
The reaction should be as independent of such physical parameters as stirring, pH and temperature. This would allow analysis of samples with minimal pre-treatment.
Reproducibility and linear response over sufficiently large analytical dynamic range, without dilution or concentration. Low electrical noise, and without memory effects.
For invasive monitoring in clinical situations, the probe must be tiny and biocompatible, without toxic or antigenic effects, sterilisable, without tendency for fouling or proteolysis.
Cheap, small, portable and capable of being used by semi- or unskilled operators.
Features
10Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
• heat output (or absorbed) by an exothermic reaction (calorimetric biosensors);
• distribution of charges (ions), causing an electrical potential to be produced (potentiometric biosensors);
• movement of electrons/charge carriers, produced in a redox reaction (amperometric biosensors);
• change of resistance by changes of mass/film thickness (resistance biosensor);
• mass variations of the film reactants or products (piezo-electric biosensors or quartz micro-balance & micro cantilever sensors);
• light output during the reaction or a light absorbance difference (color change) between the reactants and products (fluorescent optical biosensors and paper strip sensor);
• the change of refractive index and/or mass coverage (surface plasmon resonance sensor), or
Physico-chemical tranducers
11Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Optical biosensing
12Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
SPR biosensing system
13Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
VIR animation
14Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
SPR biosensing system - photo
15Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Multilayer system
16Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Biotech recipes
Filme fino
17Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Sensorgram
18Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Injection mold and prisms
19Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
PMMA micropump
20Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Smartphone based biosensing system
21Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Smartphone test platform
22Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Detecting thickness and refractive index
23Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Ant colony optimization – SPR detection
24Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Bio-fuel quality
25Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Dengue detection
26Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
Muito obrigado!Questões?
amnlima@dee.ufcg.edu.br
27Department of Electrical Engineering
Universidade Federal de Campina Grande
eBIOS
São Carlos x Campina Grande
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