COE 341 DATA AND COMPUTER COMMUNICATIONS Presentation in

Wireless Sensor Network Prepared for : Dr. Radwan E. Abdel-Aal Done By : Abdulaziz A-Harbi Saleh Al-Mutawa235267

QUESTIONS 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. wireless networkautonomous sensorsvibration pressure

Abstract 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 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 ?

II. HISTORY & BACKGROUND 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?

Wireless Wireless does not mean spark or noise. antenna Wireless means communication without the use of wires other than antenna, 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 Internet

The 1st Invention of Wireless The 1st Invention of Wireless Marconi The history of wireless refers to 1896, February by Guglielmo 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 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 Guglielmo Marconi develops the first wireless telegraph system First commercial radiotelephone service operated between Britain and the US Packet switching emerges as an efficient means of data communications, with the X.25 standard emerging late in the decade. 1970s

Cont’ Cont’ Table 1 January 1, TCP/IP selected as the official protocol for the ARPANET, leading to rapid growth (b)-based networks are in popular demand Wired Equivalent Privacy (WEP) Security is broken. The search for greater security for (x)-based networks increases. 2000–1

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 Topology Network Topology

Communication 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 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 PARTS All what you need is buy the parts and implement the simple circuit.

STRUCTUR 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.

Types 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.

Types 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 sensor 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 monitor 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 fires 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 Wireless Importance of Wireless Features of Wireless Features of Wireless Future of Wireless Future of Wireless