About the overview of Wireless sensor Networks

1. OVERVIEW OF WIRELESS SENSOR
NETWORK
PRESENTED BY,
M. JUNO ISABEL SUSINTHRA

2. INTRODUCTION
• SENSOR:
A sensor is a device, module, or subsystem whose purpose is to detect events or changes in its
environment and send the information to other electronics, frequently a computer processor.
EXAMPLE: Fisher man limit , Mobile Device
• AMBITENT INTELLIGENT:
It is where many other devices will
gather and process information from different source to
both control the physical processors and to interact with
Human user
EXAMPLE: peer to peer , person to person.

3. INTRODUCTION
• WIRELESS SENSOR NETWORK
These network consists of individual nodes interact with their environment by
sensing or controlling physical parameter , these nodes have to collaborates each other
otherwise actuator network
EXAMPLE: Mobile Device
WIRELESS SENSOR APPLICATION :
Disaster relief Application
Environment control and biodiversity mapping
Intelligent building
Facility management
Machine surveillance and preventive maintenance

4. • Precision agriculture
• Medicine and health care
• Logistics
• Telematics
• Disaster relief Application:
Disaster relief refers to the process of responding to a catastrophic situation, providing
humanitarian aid to persons and communities who have suffered from some form of disaster
EXAMPLE: Environment Control
• Environment control and biodiversity mapping
A biodiversity hotspot is a biogeographic region with significant levels of biodiversity that is
threatened with destruction. For example forests are considered as biodiversity hotspots.The Status is designated
by Conservation International.
EXAMPLE : Animal species

5. • Intelligent building
- An intelligent building as one which provides a productive and cost-effective environment
through optimization.
EXAMPLE : Fire Alarm
• Facility management
- The maintenance of an organization's buildings and equipment.
EXAMPLE : finance and business
• Machine surveillance and preventive maintenance
- Preventive maintenance is regularly performed on a piece of equipment to reduce the
likelihood of failure.
• Precision agriculture
- Precision agriculture, satellite farming or site specific crop management is a farming
management concept based on observing, measuring and responding to inter and intra-field variability in crops

6. • Medicine and health care
- These services are typically offered through a health care system made up of hospitals
and physicians.
• Logistics
-The activity of organizing the movement, equipment, and accommodation of troops
• Telematics
- The branch of information technology which deals with the long-distance
transmission of computerized information.

7. CHANGELLES OF WIRELESS SENSOR NETWORK
• Type of service
• Quality of Service
• Fault tolerance
• Lifetime
• Scalability
• Wide range of densities
• Programmability
• Maintainability

8. • Type of service:
- it moves bits from one place to another
• Quality of Service
- Closely related to the type of a network’s service is the quality of that service.
• Fault tolerance
- it is important that the WSN as a whole is able to tolerate such faults
• Lifetime
- A simple option is to use the time until the first node fails (or runs out of energy)
as the network lifetime
• Scalability
- A large number of nodes, the employed architectures and protocols must be able
scale to these numbers
• Wide range of densities
- The density of the network

9. EXAMPLE : imperfect deployment
• Programmability
- These nodes should be programmable, and their programming must be changeable during
operation
• Maintainability
- The network has to maintain itself