Transcript Wireless Sensor Networks for Habitat Monitoring

Wireless Sensor Networks for Habitat
Monitoring
CS843
Gangalam Vinaya Bhaskar Rao
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Topics
1. Introduction
2. Need for Habitat Monitoring
3. System Architecture for Habitat Monitoring
4. Implementation Strategies
5. Current Result
6. Conclusion
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Introduction

Habitat monitoring represent a class of sensor network
applications with enormous potentials benefits for scientific
communication and society
 The sensor nodes are more efficient in providing localized
measurements and detailed information of local processing and
storage allows sensor nodes to perform complex filtering and
triggering functions.
 The ability to communicate allows to cooperate in performing more
complex tasks, like statistical sampling, data aggregation, and status
monitoring.
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Introduction Contd.

The computing and networking capabilities allow sensor networks to
be reprogrammed or retasked after the deployment.
 The impact of sensor networks for habitat and environmental
monitoring will be measured by their ability to enable new
applications and produce new results other wise too difficult to realize
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Need for Habitat Monitoring

Researchers in the life sciences are becoming increasingly concerned
about the potentials impacts of human presence in monitoring plants
and animals in field conditions.
 A disturbance can seriously reduce or even destroy sensitive
populations by increasing stress, reducing breeding success,
increasing predation, or causing a shift to unsuitable habitats.
 Disturbance effects are of particular concern in small island situation,
where it may be physically impossible for researchers to avoid some
species on an entire population.
 So, sensor network deployment may represent a substantially more
economical method for conducting long-term studies than
traditional personnel-rich methods
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System Architecture
The designed architecture is a tiered architecture
The basic units in the design are :--
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Sensor nodes
2.
Sensor node gateway
3.
Base Station
4.
Sensor Patch
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Implementation Strategies
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Sensor Network Node

Sensor Board

Energy Budget

Sensor Deployment

Base Installation

Database Management System
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Sensor Network Node
 In this deployment, they have used UC Berkeley
motes as the sensor nodes.
 The latest family of the family, called Mica[11]
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Sensor Board
 To provide relevant measurements to scientists, they
have designed and manufactured an environmental
monitoring sensor board
 This weather board includes temperature, photo
resistor , barometric pressure, humidity, and passive
infrared sensors.
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Energy Budget
 Many habitat monitoring applications need to run for
nine months.
 Mica runs on a pair of AA batteries, with are typically
2.5 amps.
 The application chooses how to allocate this energy
budget between sleep modes, sensing, local
calculations and communications.
 We need budget our power with respect to the energy.
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To estimate of what is possible on a Mica mote with a pair AA
batteries, we tabulated the costs of various basic operations in
this table.
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Sensor Deployment
The wireless sensor network was deployed on July 2002
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Base Station Installation
 It provides remote access to the habitat monitoring
networks, the sensor network patches is connected to
the internet through a wide area link.
 It is considered as a turnkey system, since it needs to
run unattended.
Database Management
 The base station currently uses Postgres SQL
database.
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Current Results
 32 motes are deployed on Great Duck Island.
 They have calculated the emotes have
sufficient power to operate for the next six
months, even though biologists will stop visiting
the island.
 The new data will provide insights into the climate
activity through the fall and winter.
 The performance so far is considered to be
excellent.
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Conclusion
 Habitat monitoring represent an important class of sensor
network applications.
 The system which is designed is used at the College of the
Atlantic to define the core application requirements.
 As end users are ultimately interested in the sensor network
system must deliver the data of interest in a confidence
inspiring manner.
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Questions ?
Thank you.
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