Wireless sensor networks (WSN) can be used in precision agriculture to monitor various parameters like temperature, humidity, and soil conditions. The network is made up of small sensor nodes called motes that self-organize to communicate sensory data to a gateway. This allows farmers to selectively harvest crops, monitor crop health over time, and view sensor measurements on a web application for historical analysis and geostatistical modeling. However, the technology faces limitations due to the small size and limited resources of the sensor nodes.

1. Aplication of Wireless Sensor
Networks (WSN)
in Agriculture
Precision Agriculture
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2. WSN in Agriculture
Introduction:
 WSN is an acronym for Wireless Sensor
Network
 Each node of the network is called MOTA
 They communicate among themselves and
with a gateway
 This gateway can be reached from Internet
 Manufacturers:
 CrossBow: http://www.xbow.com
 Libelium: http://www.libelium.com/
 http://www.tinynode.com
 Mesh networks: http://www.tranzeo.com
 http://www.sensicast.com

3. WSN in Agriculture
Aplications:
 Deployment of such distributed
sensor networks offers several
advantages:
● Diversity, scalability and higher
density as compared to spatial
centralized
● Self-organizing robust networks

4. WSN in Agriculture
Components:
 The Battery currently have an
estimated life of up to 1 year. They
are usually Nickel Cadmium
batteries.
 Microprocessor: the speed is often
of several megahertz and
has a fairly low RAM
(about 256 Kbytes to
256 Kbytes RAM
and others to EEPROM).
 The Battery currently have an
estimated life of up to 1 year.
They are usually Nickel
Cadmium batteries.
 Also used solar panels embedded
with specks

5. WSN in Agriculture
Components (cont.)
● The radio: IEEE 802.15.4 and
Zigbee (future de facto standard
that combines IEEE 802.15.4 and
HomeRFLite above) are the most
used
● Sensors: are becoming smaller,
more powerful and consume less
energy.
● Software:
● Arduino / Processing to control
spots
● You can also use the NESC language
(similar to the C language) on
embedded operating systems like
TinyOS.

6. WSN in Agricultura
Architecture de una red WSN
 Wireless networks of motes perform
a self-organizing communication
 They pass their sensory input
and information they receive
from neighboring spots to other
spots until it reaches the
gateway.

7. WSN in Agriculture
Measurable parameters in Agriculture
 Pressure
 Temperature
 Humidity
 Level og solar Radiation
 Soil parameters using the right
sensors

8. WSN in Agriculture
Aplications:
 Selective harvest opportunity
 Measuring Vegetation Indices
 Monitoring Temporal Stability
 Harvest
 Variability of quality

9. WSN en Agricultura
Aplicación WEB
 Posibibility of developing a web application
to monitor on a terrain map parameters
DIGATIC 1.0
measured
 Connecting to a database for storing
parameters, historical consultation, etc.
 Integration with statistical computing
software such as VESPA
 Geostatistical analysis by interpolation of
the measured points (Kriging)

10. WSN in Agriculture
Limitations:
 The motes are components of very limited
resources: they have a small CPU and
limited storage capacity
 Communication bandwidth, limited.
 Their lifespan is determined by its ability to
conserve energy (not to waste the battery.)
 Normal state: in hibernation except when
making measurements and transmitting the
results

11. WSN in Agriculture
New aplications
 Vineyards / Wineries
 Farm animals
 E-health: measurement of body parameters in elderly
people
 Home Automation: Control lighting, temperature in
each room, etc.