Similar a Vendula Hejlová - Wireless sensor network components for monitoring air pollution in the urban environment: criteria and analysis of its selection
International Journal of Advanced Smart Sensor Network Systems (IJASSN)ijassn
Similar a Vendula Hejlová - Wireless sensor network components for monitoring air pollution in the urban environment: criteria and analysis of its selection (20)
Vendula Hejlová - Wireless sensor network components for monitoring air pollution in the urban environment: criteria and analysis of its selection
1. Wireless sensor network
components for monitoring of air
pollution in urban environment:
criteria for their selection
Author: Vendula HEJLOVÁ
www.geoinformatics.upol.cz
1
2. WHY TO MONITOR AIR POLLUTION?
• serious problem nowadays
• emissions of pollutants affect ecosystems,
environment, human health and quality of
life
• sources of air pollution
• antropoghenic
• natural
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3. WIRELESS SENSOR NETWORK
• new fast evolving technology consisted of small
devices (nodes) situated in the field and the
gathering point (gateway)
• nodes are able to
• communicate with each other (short, long distance)
• communicate with gateway (basic station)
• measure chosen environmental or socioeconomic characteristics in
real time
• be distributed in high density
• used in
domain
environmental
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and
socioeconomic
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4. WIRELESS SENSOR NETWORK
COMPONENTS
• 2 major groups of wireless sensor network
components
• hardware
» nodes (may be equipped by sensors)
» gateway
• software
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5. PRE-SELECTION OF WIRELESS SENSOR
NETWORK COMPONENTS
• pre-selection steps involve:
–
–
–
–
determination of the reason of building
choosing the localization of the nodes
determination of the number of nodes
searching for the producers (analyzing commercially
offered products (options))
– defining the criteria for the evaluation of selected
options
– defining the ideal option
– comparing criteria parameters of offered options to
the ideal (suggested) one
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6. CRITERIA FOR THE NODES SELECTION
• criterion is in the decision making process called a scale
and it is used for the comparison of parameters
• every criterion is evaluated by its importance
• nodes are the most important part of the wireless sensor
network
• 25 criteria, 8 groups of criteria for nodes were defined for
the wireless sensor network which will be suitable for
monitoring of air pollution in the urban area
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7. CRITERIA FOR THE NODES SELECTION
Criteria group
1
2
3
Criteria
Sensor boards/
sensors
»
»
»
»
»
»
sensor board for monitoring of air pollutants from the producer
possibilities for connecting sensors monitoring of air pollutants
count of connected sensor boards/sensors
sensor measurement interval [min]
calibration
built in sensors
Communication
models
»
»
»
»
communication among nodes
communication possibilities
communication range [m]
topology
Energy
sources
»
»
»
energy source
battery life [year]
energy consumption
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9. WIRELESS SENSOR NETWORK IN
OLOMOUC (OWSN)
• major aim - monitoring of air pollution
• observed elements:
• temperature, humidity, CO2, CO, NO2, NH4, VOC,
solar radiation, wind speed and direction
• 15 nodes equipped with sensors
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11. www.geoinformatics.upol.cz
0,00
node nam e
11
CM5000
XM100
TinyNode586
MEP-SYS, temphum
MEP-SYS
multisensor
MICA2
IMOTE2
IRIS (eKo Long
Range)
IRIS (eKo
Standard)
0,40
criterion
0,30
node price
node weight
node size
GPS, change of sensors, flexibility
memory size
programming skills
0,01
0
IRIS
0,50
protection
0,03
0,02
TelosB
0,60
LOTUS
0,70
is in operational range interval -30 +40 °C
0,80
MICAz
0,90
solar panel
battery life
battery powered
1,00
Waspmote Plug &
Sense
Waspmote PRO
utility
communication range
communication in 3,4 GHz of 5 GHz
protocol Zigbee
communication between nodes
built-in sensors
calibration
possibilities for connection sensors
for pollutant monitoring
sensors for measuring air
pollutants from the producer
weigth
ANALYSIS
WEIGHTS OF SUGGESTED CRITERIA
determined by The Rank Based Method
0,1
0,09
0,08
0,07
0,06
0,05
0,04
UTILITY OF THE SELECTED OPTIONS
0,20
0,10
12. THANK YOU FOR YOUR ATTENTION
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