Image Processing Reference
In-Depth Information
12
Developing and Testing of Software
for Wireless Sensor Networks
. Introduction .........................................
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Jan Blumenthal
SYSGO AG
. Preliminaries.........................................
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Architectural Layer Model
●
Middleware and Services for
Sensor Networks
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Programming Aspect vs. Behavioral
Aspect
. SotwareArchitectures ...............................
Frank Golatowski
University of Rostock
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TinyOS
●
MATÉ
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TinyDB
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SensorWare
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MiLAN
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EnviroTrack
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SeNeTs
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Contiki
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Sensor Web Enablement
. Simulation, Emulation, and Test of Large-Scale
SensorNetworks .....................................
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A TinyOS SIMulator
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EmStar
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SeNeTs—Test and Validation
Environment
●
J-Sim
. MasteringDeployedSensorNetworks................
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. Summary ............................................
-
References .................................................
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Ralf Behnke
University of Rostock
Steffen Prüter
University of Rostock
Dirk Timmermann
University of Rostock
12.1 Introduction
The increasing miniaturization of electronic components and advances in modern communication
technologies enable the development of high-performance spontaneously networked and mobile
systems. Wireless microsensor networks promise novel applications in several domains. Forest fire
detection, battlefield surveillance, or telemonitoring of human physiological data are only in the van-
guard of plenty of improvements encouraged by the deployment of microsensor networks. Hundreds
or thousands of collaborating sensor nodes form a microsensor network. Sensor data is collected
from the observed area, locally processed or aggregated, and transmitted to one ore more base
stations.
Sensor nodes can be spread out in dangerous or remote environments whereby new applica-
tion fields can be opened. A sensor node combines the abilities to compute, communicate, and
sense. Figure . shows the structure of a typical sensor node consisting of a processing unit, a
communication module (radio interface), and sensing and actuator devices.
Figure . shows a scenario taken from the environmental application domain: leakage detection
of dykes. During floods, sandbags are used to reinforce dykes. Piled along hundreds of kilometers
around lakes or rivers, sandbag dykes keep waters at bay and bring relief to residents. Sandbags are
stacked against sluice gates and parts of broken dams to block of the tide. To find out spots of leakage
each sandbag is equipped with a moisture sensor and transmits sensor data to a base station next to
