COE 341 DATA AND COMPUTER COMMUNICATIONS Presentation in.

COE 341COE 341

DATA AND COMPUTER COMMUNICATIONSDATA AND COMPUTER COMMUNICATIONS

Presentation in Presentation in

Wireless Sensor NetworkWireless Sensor Network

Prepared for :Prepared for : Dr. Radwan E. Abdel-Aal

Done By :Done By : Abdulaziz A-Harbi 232139 Saleh Al-Mutawa 235267

QUESTIONSQUESTIONS

What is Wireless Sensor Network? Is there a difference between Wireless

and Radio ? When was the first invention ? What is Functionality ? How does it work ? How can we create our own WSN ? Is there any application ?

I. INTRODUCTION:

- Wireless sensor network (WSN) is a wireless network consisting of spatially distributed autonomous devices using sensors to cooperatively monitor physical or environmental conditions, such as temperature, sound, vibration, pressure, motion or pollutants, at different locations .

AbstractAbstract

Although, the first invention was for military applications such battlefield surveillance and wireless sensor networks are now used in many different civilian areas which include habitat monitoring, applications of healthcare, home automation, environment and traffic control.

Important of WSNImportant of WSN

As you can notice the different important applications let the Wireless Sensor network play primary issue on our day life.

So, because of the importance of this type of network we will focus the light in this Presentation on the functionality, structure and a little history about this great invention.

Moreover, we will explore the recent application of the wireless sensor network.

II. HISTORY & BACKGROUND :

Most of people thought that there is a big difference between wireless and radio.

Do you agree with this ?Do you agree with this ?

II. HISTORY & II. HISTORY & BACKGROUNDBACKGROUND

However, they are almost the same except that they differ in the spelling and some small aspects on meaning.

This is the first shock you heard it from this report.

So, what do we mean by wireless? And when it was invented?

WirelessWireless

Wireless does not mean spark or noise. Wireless means communication without the

use of wires other than antennaantenna, which is the source of producing wireless waves.

It is just uses the ether and the ground as place of wires.

Radio exactly the same meaning which is the wireless transmission of signals, by modulation of electromagnetic waves with frequencies below those of visible light.

Accessing WSNs through Accessing WSNs through InternetInternet

The 1st Invention of WirelessThe 1st Invention of Wireless

The history of wireless refers to 1896, February by Guglielmo Marconi Marconi Journeyed from Italy to England just to show the scientist and the Corporation of telegraph in British what he had developed of an operational wireless telegraph apparatus.

And his first patent application was filed on 2 June of that year.

Details of History of WSNDetails of History of WSN

After that the cooperation of Mr. W.H. Preece, the chief of Electrical Engineering of the British Post-office Telegraphs, signals were sent in July 1896 over a long distance of one and three fourths miles on Salisbury Plain.

The Table 1 Also, will summarize the time developed on Wireless Technologies evolution.

Table 1: A simple timeline in Wireless Technologies evolution

1896 Guglielmo Marconi develops the first wireless telegraph system.

1927 First commercial radiotelephone service operated between Britain and the US.

1970sPacket switching emerges as an efficient means of data communications, with the X.25 standard emerging late in the decade.

Cont’Cont’ Table 1

1983 January 1, TCP/IP selected as the official protocol for the ARPANET, leading to rapid growth.

2000 802.11(b)-based networks are in popular demand.

2000–1 Wired Equivalent Privacy (WEP) Security is broken. The search for greater security for 802.11(x)-based networks increases.

FUNCTIONALITY

how these nodes communicate together without conflict ? How these nodes knows that the detected signal is the

information it need.? factors that make better communication without conflict

1-Network Topology 2-Communication Protocol

Network Topology:-mesh topology is the best for WSN since each node will communicate with the nearest node.-Fully Connected topology is the worst once because each node is connected with all other node causing routing issue as network get larger.

Network TopologyNetwork Topology

Communication ProtocolCommunication Protocol

The ability of a sensor node know weather node to that the signal received is a information is by the header that should added to transmitted information by the transmitter sensor.

Header contains the address of the destination, length of message and the source information.

STRUCTUR AND PARTSSTRUCTUR AND PARTS

Any one can create WSN at home. The parts that is needed to create the

Wireless sensor Network-Microcontroller(IC1).

-Capacitor(C). -Transmitter board (Ultra high frequency). -receiver board (Ultra high frequency). -Crystal(Q1). -resistor(R1).

STRUCTUR AND PARTSSTRUCTUR AND PARTS All what you need is buy the parts and

implement the simple circuit .

STRUCTUR AND PARTSSTRUCTUR AND PARTS

You can connect with the circuit shown alarm system ,temperature sensor or also humidity sensor. That is why, With our imagination we could make an intelligent and creative systems using Wireless Sensor Network.

TypesTypes

There is two main types of Wireless Sensor Network-Hierarchical Wireless Sensor Networks (HWSN).-Distributed Wireless Sensor Networks (DWSN).

HWSN is pre defined topology that is designed when the network is created.

Nodes in the network divided in three based on the cabability.A. Base Station.

B. Cluster Heads. C. Sensor nodes. The sensor nodes are usually located near to the

base station Cluster Heads collect the traffic from nods to send it

to the base station.

TypesTypes

Types of data flow:

-Unicast (sensor to sensor).

-Multicast (group wise).

-Broad cast (base station to sensor).

# DWSN is network where network topology is unknown before the development

# the nodes scan their radio coverage area to find their neighbors.

Application of Wireless Sensor Network

In Medical health care field WSN are used emergence with embedded

systems to monitor the health of the patients in the hospital

Or outside the hospital through the internet.

A. Wireless pulse Oximeter sensor B. Wireless muscle movements monitor

Robotics field

A ring of robots to fight fires

Wireless pulse Oximeter Wireless pulse Oximeter sensorsensor

devices collect the heart pulse rate and the Oxygen saturation and send these data over a short

Range(100m) Wireless Network to any number of receiving devices, including PDAs, laptops, or ambulance-based terminals which in turn can display the receiving data and record them

The device can alarms if data fall out of specific parameter.

Easy to wear like hand watch.

Wireless limb movements Wireless limb movements monitormonitor

This device can monitoring the limb movements and muscle activity when they exercise.

Sensor nodes in all the muscles of the body to create a network and send all the recorder info

to the master. Master sends the info to the device that

monitor.

A ring of robots to fight A ring of robots to fight firesfires

Robots that are connected to communicate with each other by Wireless Sensor Network to fight the fire by sensing the fire and locate it to make a ring shape around it and each Fire Fighter Robot will fight fire from one direction so that the fire will be easily stoppped

CONCLUSION

Importance of WirelessImportance of Wireless Features of WirelessFeatures of Wireless Future of WirelessFuture of Wireless