A presentation by Abhijit Chakrabarty or Dept of Computer Sc. & Engg. Dream Institute of Technology

 We sincerely acknowledge the guidance, support and assistance extended by Dr. Dipankar Sarkar, Director, D.I.T, Prof. Mahua Choudhury, H.O.D Humanities and other faculty members of D.I.T.  We would like to thank our parents for providing their supports.  We also thank Microsoft Corpn. for providing us such a platform through which we have been able to present our research work.

What is Bluetooth? Why use it? Bluetooth Range & Specification How does it work : Speed & Power Multiple connection & conflicts Advantages & Disadvantages Marketing Aspects Bluetooth Future

Bluetooth wireless technology is a short- range communications technology intended to replace the cables connecting portable and / or fixed devices while maintaining high levels of security. It is designed to be used to connect both mobile devices and peripherals that currently require a wire. Simplifying communications between : - devices and the internet. - data synchronization.

Bluetooth was named after a tenth-century king, Harald Bluetooth, King of Denmark and Norway. Bluetooth is an anglicized version of Harald Blaatand, who was known for his unification of previously warring tribes from Denmark where the Bluetooth technology was invented. Bluetooth likewise was intended to unify different technologies, such as personal computers and mobile phones. The Bluetooth logo merges the Germanic runes analogous to the modern Latin letters H and B : (for Harald Bluetooth) (Hagall)  and (Berkanan) merged together, forming a bind rune.

Eliminates cables. Inexpensive. Easy to set up and use. Readily available. Good security. Device compatibility.

The Bluetooth specification defines a uniform structure for a wide range of devices to connect and communicate with each other. Each channel is divided into time slots 625 microseconds long. Packets can be up to five time slots wide. Data in a packet can be up to 2,745 bits in length.

Class 3 radios – Range up to 1 meter or 3 feet. Class 2 radios – Range upto 10 meter or 30 feet (most commonly found in mobile devices). Class 1 radios – Range upto 100 meters or 300 feet primarily used in industries.

 Bluetooth is a standard for tiny, radio frequency chips that can be plugged into many devices. This chips takes all the information and transmit it at a special frequency to something called a receiver Bluetooth chip. The information is then transmitted to your device.

1 Mbps for Version 1.2 Up to 3 Mbps supported for Version 2.0 How fast is it ? The most commonly used radio is Class 2 and uses 2.5 mW of power. Bluetooth technology is designed to have very low power consumption. How about power ?

Bluetooth enabled electronic devices connect and communicate wirelessly through short-range, adhoc networks known as Piconet. Each device can simultaneously communicate with up to seven other devices within a single Piconet. Each device can also belong to several Piconets simultaneously. Piconets are established dynamically & automatically as Bluetooth enabled devices enter and leave radio proximity.

Infrared – not at all. WiFi – possibly, but not likely. Bluetooth does operate in the 2.4 GHz band like b and g, but it uses frequency hopping instead of direct sequencing. Any possible interference would be very short- lived.

Wireless (No Cables). No Setup Needed. Low Power Consumption (1 Milliwat). Industry Wide Support.

 Short range (10 meters).  Small throughput rates. Data Rate 1.0 Mbps.  Mostly for personal use (PANs).  Fairly Expensive.

Telecommunications Bluetooth Headsets Bluetooth Enabled Phone

Networking

 Industrial When you arrive at the office.. When you are in a meeting..When inspecting equipments..

 Medical Bluetooth enabled Sphygmomanometer

 Automotive Car Remote by BluetoothYou get on the rent-a-car bus

 Vertical Markets  (Hotels, Airports) You arrive at the airport..You are sitting or waiting in the lounge

Bluetooth Headphone Bluetooth Headsets

Bluetooth enable cell phone Bluetooth car adapter

Bluetooth Printer Bluetooth Keyboard

Bluetooth CameraBluetooth Projector

Bluetooth MP3 Player Bluetooth Ultra Mobile PC

The future of this technology becoming a standard is likely. With a strong industry pushing behind it, success is inevitable. Bluetooth will soon be known as Bluetooth 1.2