CHAPTER 1

INTRODUCTION TO RESEARCH

1.1 INTRODUCTION:

Bluetooth is a wireless technology of the last decade, there has been a lot of research going on this technology all over the world. The Bluetooth was named after the 10th century Danish King Harald Blatand or Harold Bluetooth. King Blatand was influential in uniting militaristic factions in parts of what are now Norway, Sweden and Denmark – just as Bluetooth technology is designed to allow collaboration between differing industries such as computing, mobile phone and automotive markets. Bluetooth technology was the internal project of Ericssion, which was intended for providing short distance multiple links. Then it was collaborate with Intel in 1997, later the association with Nokia, IBM, Toshiba, Microsoft, Motorola, 3com etc to form a non profitable trade association Bluetooth Special Interest Group (SIG). The formed consortium adopted common code name to Bluetooth for their open source specification. Bluetooth uses 2.4 GHz frequency for transmitting the data at band rate of 1Mbps. In taking account of user’s point of view, there are three important features to Bluetooth. (Ali M Aljuaied 2001)

• It is wireless. When you got to client place, you need not have to worry about keeping track of cables to attach all of your components and you can design your application without wondering where all the wires will go.
• It is economical.
• You do not have to think about it. Bluetooth does not require any extraordinary skills to make it work. The devices find one way or another and pairs up a conversation without any user input at all.

Bluetooth technology is a standard and communications protocol which is designed for low power consumption, with a short range (power-class-dependent: 1 meter, 10 meters, 100 meters) based on low-cost transceiver microchips in each device. Bluetooth enabled devices tend to communicate with each other when they are in range. These devices use radio wave communications system, so that they do not have to be in line of sight with other and can even be in other rooms, as long as the received transmission is powerful enough. During the discovery process Bluetooth device transmits class type of device and the supported services of that class

Class

Max permitted power

Range(approx)

Class1

100mW

100meters

Class2

2.5mW

10meters

Class3

1Mw

1 meter

Table reference [www.bluetooth.com]

The popular Bluetooth applications are:

• Mobile phone and hands free headset.
• File transfer between Bluetooth enable devices using Obex application
• The places where traditionally used by IrDA in control equipment.
• In gaming equipments like play station.
• Used to connect the Dial up internet for PC.

1.2 AIMS AND OBJECTIVES OF RESEARCH:

The main research aim of the project is to develop Remote PC manager from mobile through Bluetooth and make it more efficient and reliable for future applications. The following are the research objectives:

• Developing user friendly software for remote management of PC through mobile using Bluetooth.
• Improvement of response time in the existing application.
• To solve the problem occurred in application during the connection and disconnection Process.

1.3 PAST WORKS:

There has been a vast amount of research carried out in Bluetooth related applications all over world of which is this PC remote mobile phone using Bluetooth application, but most of the applications that are made have been having problems related to response time, compatibility with specific mobile such as Nokia and Sony Ericsson, connection and disconnection. Hence, the next few lines will discuss about the background for developing PC remote.

Based on Blueshareware.com

Development done

Deployment year

The first beta type control 1.0 version using Nokia 6600

23 Feb. 2005

Then added applications related to audio and video player

7 march 2005