blue tooth main file
TRANSCRIPT
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TECHNOLOGY
Presented by
VOSU MITTAL
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What is Bluetooth?
How Bluetooth Technology works?Bluetooth ProtocolBluetooth VersionsAdvantages n Disadvantages
Competting TechnologiesReferencesConclusion
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1.Bluetooth technology eliminates the need for
numerous and inconvenient cable attachments.
2.This technology enable users to automatically
and easily connect a wide range of computing
and telecommunication devices.
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3. Bluetooth makes wireless communication andnetworking between devices in a small
localized area.
4. In Bluetooth all the connections betweendevices are occurring immediately and
invisible.
5. Bluetooth is actually a standard for wireless
communications between devices within a
range of 10metres.
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6. Bluetooth was officially introduced in 1994 by
Jaap Haartsen and Sven Mattisson, and its
intended basic purpose was to be a wire
replacement technology in order to rapidlytransfer voice and data.
7. Bluetooth Special Interest Group is a group
of companies from the telecommunications,computing and networking industries that
promotes the development and deployment of
Bluetooth technology.
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3. Two Bluetooth products can exchange their
addresses and capabilities just after coming
within the range of about 10metres.
4. The radio operates on the globally-available
unlicensed radio band, 2.45 GHz and supports
data speeds of up to 721 Kbps.
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5. The Bluetooth modules can be either built
into electronic devices or used as an adaptor.
For instance in a C they can be built in as a
C card or externally attached via the SB
port.
[BL ETOOTH MO LE]
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6. Connections can be point-to-point or
multipoint. The maximum range is 10 meters but
can be extended to 100 meters by increasing the
power. Bluetooth devices are protected from
radio interference by changing their fre uencies
arbitrarily up to a maximum of 1600 times a
second, a techni ue known as fre uencyhopping.
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7. The Bluetooth specification targets power
consumption of the device from a "hold" modeconsuming 30 micro amps to the active
transmitting range of 8-30milliamps which is
less than 3% of the power used by a standard
mobile phone. The chips also have excellent
power-saving features.
8. utomatic communication between variousdevices within a small area makes it possible
to provide uni ue and innovative services to a
professional worker.
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PICONET WITH OPER TIONS
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1.Bluetooth is defined as a layer protocol
architecture consisting of core protocols, cable
replacement protocols, telephony control protocols,and adopted protocols.
2.Mandatory protocols for all Bluetooth stacks are:
LMP, L2C P and S P. dditionally, these protocolsare almost universally supported: HCI and RFCOMM.
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1.LMP (Link Management Protocol)
sed for control of the radio link between two
devices. Implemented on the controller.
2.L2C P (Logical Link Control & daptation
Protocol)
sed to multiplex multiple logical connectionsbetween two devices using different higher level
protocols
3. S P (Service iscovery Protocol)
Service iscovery Protocol (S P) allows a device to
discover services supported by other devices, and
their associated parameters
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4.HCI (Host/Controller Interface)
Standardised communication between the host
stack (e.g., a PC or mobile phone OS) and thecontroller (the Bluetooth IC). This standard allows
the host stack or controller IC to be swapped with
minimal adaptation.
5. RFCOMM (Serial Port Emulation)
Radio fre uency communications (RFCOMM) is a
cable replacement protocol used to create a virtual
serial data stream. RFCOMM provides for binary
data transport and emulates EI -232 (formerly RS-
232) control signals over the Bluetooth baseband
layer.
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1. Bluetooth v1.1
2. Bluetooth v1.2
3. Bluetooth v2.0 + E R (Enhanced ata Rate)
4. Bluetooth v2.1 + E R
5. Bluetooth v3.0 + HS
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1. Bluetooth Devices are Wireless
In addition to improving safety as a result of
eliminating the clutter of wires and associated
hazardous connections, Bluetooth wireless
technology also offers you many convenient
advantages.2. Bluetooth Technology is Inexpensive
Bluetooth technology is cheap for companies toimplement, which results in lower over-
all manufacturing Costs. These savings are then
passed on to you, the consumer. The end result:
Bluetooth devices are relatively inexpensive.
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3. Bluetooth is Automatic.
When two or more Bluetooth devices enter arange ( p to 30 feet) of one another, they
automatically begin to communicate without you
having to do anything. The best part is: The
devices take care of the entire setup process,and you can go about your business.
4. Low Energy Consumption
Bluetooth uses low power signals. s a result,
the technology re uires little energy and will
therefore use less battery or electrical power.
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5. Share Voice and Data
The Bluetooth standard allows compatibledevices to share both voice and data
communications. For example, it is probably no
surprise that a Bluetooth enabled cell phone is
capable of sharing voice communications with acompatible Bluetooth headset , however, the
same cell phone may also be capable of
establishing a GPRS connection to the Internet.
Then, using Bluetooth, the phone can connect to
a laptop. The result: The laptop is capable of
surfing the web or sending and receiving email.
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6.ACCESSIBLE FROM ANYWHERE
Though Bluetooth has a specific range but we
can access it up to very wide range and can alsouse it from an unanticipated range of application
from mobiles to automobiles. The low power
consumption , small size and low cost enables
this technology to be used in the tiniest ofdevices.
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1. Bluetooth devices can not be connected
with more than one devices at a time, as itfinds problem in discovering the intended
recipient device.
2. Bluetooth has a low data rate( i.e.1 MBps) incomparision to infra-red(i.e.4 MBps).
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INFR REGood SynchronizationComparable ata Rate
Wireless LAN access
Higher ata Rate than BluetoothMulti user connectivity
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1.http://www.bluetooth.com
2.http://www.bluetooth.org3.http://www.opengroup.org/bluetooth
4.http://www.palowireless.com/bluetooth
5.http://www.palowireless.com/infotooth/tut
orial.asp6.http://www.wirelessnetworkstutorial.info
7.http://en.wikipedia.org/wiki/Bluetooth
8.http://www.thewirelessdirectory.com/Blue
tooth-Overview/Bluetooth-Specification.htm
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