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Saturday, November 6, 2010

another projects for computer science

1.People usually changes email addresses and mobile number. Before changing numbers, they will have given that number to many. After changing, when they try, the number will not be correct and hence the call will not be connected. Many contacts are lost in a similar way. The project aims to solve this problem by maintaining an online contact base.
Every contact on the mobile or on the desktop is synced with it. So If Frederik changes his mobile number, every contact who syncs to this database will receive an updated contact information. With this application in place there is no hassle when mobile numbers, emails or address details are changed.
2.
Broadband and advancements in voice technologies are changing the way we used to communicate. Long distance telephone calls are made cheaper by services like skype and Jaxter. The same technology is affecting mobile services also. Most new phones have lots of memory and processing power. And with the data services on mobiles improving, its possible to place internet phone calls via mobiles.
J2me provides a SIP API specifically for this purpose. Using this API an application can be developed that can communicate with any SIP service and that includes most of the web telephony people. The costs will come down for long distance calls. The service can use the wifi facility available on most new generation handsets. Local wifi service can use the internet and also provide a means to make phone calls
3.if you have changed your mobile handset, you have experienced this problem. Transferring contacts can become a messy task . The problem becomes significant when you have too many contacts, more than that you can store in your SIM memory. Other wise you can transfer your contacts to your SIM and change the handset. In such a situation an application that allows to sync your contacts online comes very handy. The idea is to develop an online service and a mobile application that works together.
The mobile application will transfer all the contacts to an online database via GPRS. After changing the handset, the same application can be used to download the contacts back to the mobile again. Regular updations will keep a back up copy of your data online also and prevent from data loss.
4.
Bluetooth is one of the hottest technologies these days. Its a very short range low power communication technology. Almost all handheld devices are now equipped with bluetooth technology. A remote control is a perfect application of bluetooth. Since most mobile phones are bluetooth enabled and programmable via java or symbian, a remote control can be developed in 100% code. The program will connect to bluetooth devices around where the remote server program is running.
The server application can be run on any PC device. We can issue various commands to the device from the bluetooth mobile via the program. We can create different server applications to control various programs on a PC like winamp, media player, powerpoint etc. We can either use java or .net to develop the server program.
5.
The aim of this project is to use open source components to bring the power of wikipedia on you mobile phone. The end output will be like this. If I send “Bill Clinton” from my mobile as SMS to a particular number assigned for this service, I will get a call from the service and Ill be able to hear the wikipedia entry for “Bill clinton” as voice.
The different parts of the project are the SMS pull engine, the wiki search engine, the text to speech converter and the voice application engine. All these components are available open source and free. The text to speech to part can be handled by festival speech recognition engine. The voice call and telephony can be handled by the open source pbx - asterisk.
6.
Land rovers are used in areas where humans cannot reach very easily or cannot operate. Situations like bomb disposal etc are dangerous and can use a land rover very efficiently. But it requires that the land rover be controlled remotely. Wifi can be a good option to control the rover from a remote location. The architecture will consist of a remote stations from where the control signals are initiated.
These signals will be transmitted over the internet to a local wifi relay station, which has got a range of a few 100 meters. The land rover device has got a wifi serial hardware which is capable of picking up the signal from the local wifi terminal and then converting it to serial signals so that the micro controller controlling the land rover can understand it. Its also possible to take pictures and send them back to the control station via the same wifi internet link.
7.Think of the long queues in front of theatres when your favorite movie releases. Those are history now with the latest mobile phone technology. Now a days the mobile penetration is so high that almost everyone capable of spending money for a balcony ticket uses a mobile phone. 
Mobile phone provides us with 3 connectivity options.
Voice
SMS (text)
Data
We can use an IVRS to Book a movie ticket. Or we can send an SMS in a pre defined format or we can use GPRS to access a mobile page and book a ticket. Considering all these the most feasible and cost effective means is to use SMS. All phone models support SMS. Its cheaper than making calls. GPRS requires the network to be sophisticated and the phone must support GPRS.
To book a ticket the user sends a message in a predefined format specifying the show and the number of tickets to a special number. On receiving the SMS our system processes it to see if tickets are available for that particular show and gives a confirmation code to the user. The user can use that code to collect his tickets.
Technologies
:- .NET/Java

GSM/GPRS
8.Bluetooth is an industrial specification for wireless personal area networks (PANs), also known as IEEE 802.15.1. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones, laptops, PCs, printers, digital cameras and video game consoles via a secure, globally unlicensed short-range radio frequency. Bluetooth is a radio standard and communications protocol primarily designed for low power consumption, with a short range (power class dependent: 1 meter, 10 meters, 100 meters) based around low-cost transceiver microchips in each device.
OBEX (abbreviation of OBject EXchange, also termed IrOBEX) is a communications protocol that facilitates the exchange of binary objects between devices. It is maintained by the Infrared Data Association but has also been adopted by the Bluetooth Special Interest Group and the SyncML wing of the OMA. One of OBEX’s earliest popular applications was in the Palm III personal digital assistant. This PDA and its many successors use OBEX to exchange business cards, data, even applications.
The project aims to build an obex layer upon the bluetooth radio so that the device using this protocol can use obex to send/recieve binary/text files.
9.
Bluetooth is an industrial specification for wireless personal area networks (PANs), also known as IEEE 802.15.1. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones, laptops, PCs, printers, digital cameras and video game consoles via a secure, globally unlicensed short-range radio frequency. Bluetooth is a radio standard and communications protocol primarily designed for low power consumption, with a short range (power class dependent: 1 meter, 10 meters, 100 meters) based around low-cost transceiver microchips in each device.
 Wi-Fi hot spots are very common now a day. Laptops and PDAs use these hotspots to access the internet as these devices have Wi-Fi facility built into it. But mobile phones do not have Wi-Fi facility in them. Nokia is releasing some models with Wi-Fi, but still those models are costly. But lower end models also come with Bluetooth now. So its a better idea to create a Bluetooth hotspot where Bluetooth mobiles can access the internet.
 With this technology mobile phones need not have a GPRS connection or even a SIM card in it to access the internet. This project has two parts, a client application and a server application. The server application runs in a normal PC with Bluetooth dongle. This PC acts as the gateway to the internet for the mobile. The mobile will host the client application which will connect to the server application in a hotspot environment and provide the mobile with internet access.
10.
Bluetooth is an industrial specification for wireless personal area networks (PANs), also known as IEEE 802.15.1. Bluetooth provides a way to connect and exchange information between devices like personal digital assistants (PDAs), mobile phones, laptops, PCs, printers, digital cameras and video game consoles via a secure, globally unlicensed short-range radio frequency. Bluetooth is a radio standard and communications protocol primarily designed for low power consumption, with a short range (power class dependent: 1 meter, 10 meters, 100 meters) based around low-cost transceiver microchips in each device.
Bluetooth technology can be very effectively used for authentication and authorization purposes. Many levels of security are built into Bluetooth technology. We can utilize all of that to provide different levels of security to our car. The car lock control can be hard coded so that it responds to commands received from a single transmitter only. The Bluetooth transmitter is identified by using the hardware address which is unique for each transmitter. Another level of security can be added by using the pass key security in Bluetooth. The user will have to enter a pass code to start the engine ignition. The beauty of using Bluetooth technology lies in the fact that we can use ordinary mobile phones with Bluetooth technology in the place of the transmitter. So in effect the user can control his car doors and ignition from his Bluetooth enabled mobile phone. This technology has got significance since the number of Bluetooth enabled mobile phones are increasing

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