12-09-2014, 09:45 AM
WIRELESS TECHNOLOGY
[attachment=67852]
INTRODUCTION
Wireless is a term used to describe communications in which electromagnetic waves are used for communication purpose
The first wireless transmitters went on the air in the early 20th century using radiotelegraphy (Morse code). Later, as modulation made it possible to transmit voices and music via wireless
WIRELESS CAN BE DIVIDED INTO
FIXED WIRELESS
1.Mobile wireless 2.Portable wireless
IR WIRELESS
1.IR (infrared) radiation
COMMON EXAMPLES OF WIRELESS
1.Cellular phones and pagers
2.Cordless computer peripherals
3.Global Positioning System (GPS)
TYPES OF TECNOGIES
Introduction:
Wireless Technology is an alternative to Wired Technology, which is commonly used, for connecting devices in wireless mode.
Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs).
Wi-Fi Network connect computers to each other, to the internet and to the wired network.
HOW WIFI WORKS?
Basic concept is same as Walkie talkies.
A Wi-Fi hotspot is created by installing an access point to an internet connection.
When Wi-Fi enabled device encounters a hotspot the device can then connect to that network wirelessly.
Many access points can be connected to each other via Ethernet cables to create a single large network.
WI-FI APPLICATIONS
It Is Most Commonly Used In Laptops And Mobiles For Internet Portability
Used At Airport For Updating Flight Time Tables On Servers
Used In Offices To Connect Manu Building On One HUB
RADIO COMMUNICATION SYSTEMS
A radio communication system sends signals by radio.
The radio equipment involved in communication systems includes a transmitter and a receiver, each having an antenna and appropriate terminal equipment
WIRELESS LAN
A WLAN is data communication system that reduces the need for wired connections and makes new applications possible, thereby adding new flexibility to networking
BASIC SERVICE SET
The basic service set (BSS) is a set of all stations that can communicate with each other.
There are two types of BSS:
Independent BSS
Infrastructure BSS
ADVANTAGES OF WIRELESS TECHNOLOGY
Easy to use.
Avoid use of cables.
Offers productivity,convenience and cost advantages over traditional wired technology
DISADVANTAGES OF WIRELESS TECHNOLOGY
Shorter range than wired connections.
More prone to interferences.
Several wireless networks can interfere with each other.
More Expensive.
Because wireless transmissions can pass through walls, security is an issue. You will need to secure your private wireless network, generally by password-restricting the network and by using a firewall to prevent unwelcome visitors.
Wireless reception varies from area to area, even within your own apartment. It's not always guaranteed that you'll have a connection to the Internet
REMOTE CONTROL
There are many types of wireless technology remote controllers
The remote control sends a different flashing light message, like Morse code, for each job you want done.
Some controllers are more sophisticated than others
and usually require the thing they are controlling to acknowledge that it has correctly received the command… and acted on it!
ITEM TRACKING
You can now track items easily, accurately and cheaply by attaching wireless Radio Frequency IDentification (RFID) tags to them.
. Each tag has a unique number and allows you to track...RFID tags minimize the risk of getting items mixed up
NAVIGATION AND LOCATION
The Global Positioning System (GPS) is a space-based global navigation satellite system (GNSS) that provides location and time information
GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use.
WIRELESS POWER TRANSFER
Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous, or impossible.
The use of wireless energy transfer has tended to remain with applications that required only very short distances between the transmitter and the receiver.
RISK MANAGEMENT
Monitoring river water level, sea level, signs of firefighters in a burning building , toxic
substance in waterways, bridges for overloading
CONCLUSION
Use of Wireless technology is rapidly increasing an playing an important role in life of people throught the world very large number of people are replying on the technology directly or indirectly.
[attachment=67852]
INTRODUCTION
Wireless is a term used to describe communications in which electromagnetic waves are used for communication purpose
The first wireless transmitters went on the air in the early 20th century using radiotelegraphy (Morse code). Later, as modulation made it possible to transmit voices and music via wireless
WIRELESS CAN BE DIVIDED INTO
FIXED WIRELESS
1.Mobile wireless 2.Portable wireless
IR WIRELESS
1.IR (infrared) radiation
COMMON EXAMPLES OF WIRELESS
1.Cellular phones and pagers
2.Cordless computer peripherals
3.Global Positioning System (GPS)
TYPES OF TECNOGIES
Introduction:
Wireless Technology is an alternative to Wired Technology, which is commonly used, for connecting devices in wireless mode.
Wi-Fi (Wireless Fidelity) is a generic term that refers to the IEEE 802.11 communications standard for Wireless Local Area Networks (WLANs).
Wi-Fi Network connect computers to each other, to the internet and to the wired network.
HOW WIFI WORKS?
Basic concept is same as Walkie talkies.
A Wi-Fi hotspot is created by installing an access point to an internet connection.
When Wi-Fi enabled device encounters a hotspot the device can then connect to that network wirelessly.
Many access points can be connected to each other via Ethernet cables to create a single large network.
WI-FI APPLICATIONS
It Is Most Commonly Used In Laptops And Mobiles For Internet Portability
Used At Airport For Updating Flight Time Tables On Servers
Used In Offices To Connect Manu Building On One HUB
RADIO COMMUNICATION SYSTEMS
A radio communication system sends signals by radio.
The radio equipment involved in communication systems includes a transmitter and a receiver, each having an antenna and appropriate terminal equipment
WIRELESS LAN
A WLAN is data communication system that reduces the need for wired connections and makes new applications possible, thereby adding new flexibility to networking
BASIC SERVICE SET
The basic service set (BSS) is a set of all stations that can communicate with each other.
There are two types of BSS:
Independent BSS
Infrastructure BSS
ADVANTAGES OF WIRELESS TECHNOLOGY
Easy to use.
Avoid use of cables.
Offers productivity,convenience and cost advantages over traditional wired technology
DISADVANTAGES OF WIRELESS TECHNOLOGY
Shorter range than wired connections.
More prone to interferences.
Several wireless networks can interfere with each other.
More Expensive.
Because wireless transmissions can pass through walls, security is an issue. You will need to secure your private wireless network, generally by password-restricting the network and by using a firewall to prevent unwelcome visitors.
Wireless reception varies from area to area, even within your own apartment. It's not always guaranteed that you'll have a connection to the Internet
REMOTE CONTROL
There are many types of wireless technology remote controllers
The remote control sends a different flashing light message, like Morse code, for each job you want done.
Some controllers are more sophisticated than others
and usually require the thing they are controlling to acknowledge that it has correctly received the command… and acted on it!
ITEM TRACKING
You can now track items easily, accurately and cheaply by attaching wireless Radio Frequency IDentification (RFID) tags to them.
. Each tag has a unique number and allows you to track...RFID tags minimize the risk of getting items mixed up
NAVIGATION AND LOCATION
The Global Positioning System (GPS) is a space-based global navigation satellite system (GNSS) that provides location and time information
GPS was originally intended for military applications, but in the 1980s, the government made the system available for civilian use.
WIRELESS POWER TRANSFER
Wireless transmission is useful in cases where interconnecting wires are inconvenient, hazardous, or impossible.
The use of wireless energy transfer has tended to remain with applications that required only very short distances between the transmitter and the receiver.
RISK MANAGEMENT
Monitoring river water level, sea level, signs of firefighters in a burning building , toxic
substance in waterways, bridges for overloading
CONCLUSION
Use of Wireless technology is rapidly increasing an playing an important role in life of people throught the world very large number of people are replying on the technology directly or indirectly.