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MOBILE: 9704448428

ABSTRACT

Mobile technology is evolving at such a rapid pace

that new doors have been opened in the field of

mobility and wireless applications. The purpose of

the paper, Network Controlling through Mobile

is to develop a mobile application that can be used

to manage a system in a network remotely using a

GPRS enabled mobile phone. This report gives an

account of the architecture behind the end-to-end

control of a system, and how this was achieved

successfully in real-time.

A software package is installed on the mobile

phone, which grants the client a graphical user-

interface and allows the ability of advanced

control between the computer and the network

administrator. The server-side software is

developed using servlets and java, which will

process the user requests and sends appropriate

replies. General Packet Radio Service (GPRS),

Hyper Text Transfer Protocol (HTTP) and a

duplex communication between the parties form

the medium that links these two ends. The paper,

Network Controlling through Mobile is a

mobile application that one can use to track and

manage their computer in a network. Using this

application one can access the resources of their

computer. They can even make some changes to

files and store edited contents in their computer.

This paper not only helps in making an


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individuals work easy but also makes him

productive all the time.

1. INTRODUCTION

This section is going to introduce the new system

Network Controlling through Mobile which is

being developed. It includes the system overview,

literature survey, motivation to the project,

proposed project and organization of the document.

1.1 System Overview

Mobile Technology is improving so fast

that it is not only replacing the older telephone

system but also allows data communication in

various ways. Network Monitoring and

Controlling Tool is a mobile application that

enables the communication between a personal

computer and a mobile phone.

The ability to remotely control a PC using a mobile

wireless system has great advantages for the end

user. For example, Files that are present on your

PC can be sent as an email attachment from the

mobile remotely. The paper I am presenting boosts

the role of remote access by offering a user-

friendly application that is designed using Java.

This application can be deployed on any Java-

enabled cellular phone, regardless of its

manufacturer and service provider. A GPRS

Subscription allows the mobile to communicate

with the server via the Internet, which creates the

necessary link required for accessing the remote

PC. This pathway can also be utilized for reverse

communication between the computer and the

mobile client.

This concept is an advancement over the

existing system which enables a communication

between two computers which are connected in a

LAN or some form of network.i.e.Users of two

computers need to be in front of the computer

always to accomplish their work. The concept I am

developing is making use of the wireless

technology to establish a communication betweena personal computer and a mobile phone. i.e., a

user can access the resources of his computer from

a remote place at any time.

1.2 Literature Survey


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For getting a clear idea about this technology, one

needs to know how a wireless technology works?

What is GPRS and GSM system? How

GPRS system is connected to the Internet?

To answer all these questions a detailed survey of

the literature is needed. The answers to the above

questions along with their sources from where they

are taken are given below:

1. What is GPRS and GSM system?

GSM, which stands for Global System for Mobile

communication, is a second-generation digital

mobile telecommunication system, which provides

voice services compatible to ISDN, and other

PSTN systems.

GPRS, which stands for General Packet Radio

Service, is a system that enhances the data

transmission capabilities of the GSM system. In

my paper I will be using GPRS system for

establishing a communication between the mobile

and computer in a network.

2. How GPRS system is connected to the

Internet?

GPRS is connected to the Internet via Gateway

GPRS Support Node (GGSN). GGSN contains

routing information for GPRS users, performs

address conversion etc.

The figure shows the Architecture of the Network

Controlling through Mobile.

The mobile phone, which acts as a client, is

actually GPRS enabled and J2ME compatible.

An administrator who is having GPRS

enabled mobile phone can connect to

computer in a network and access resources

using a GPRS network.

Computer, which acts as a server, should

have a global IP address.

The Gateway GPRS Support Node

(GGSN), which is present in the GPRS

network, will connect to the external

Internet to which the computer is

connected.

User

Mobile

GPRS

Network

Inte

rnet

Figure1: Architecture of the system

Computer


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2 Related Hardware and Software

The hardware and software requirements are

discussed below

2.1 Hardware Requirements

The hardware requirements for the client andserver side are discussed here.

Client side:

GPRS and J2ME enabled Mobile Device.

Server side:

The servermachine needs the following minimum

configuration.

Intel Pentium III or above processor

128MB RAM & above

600MB of hard disc space

Internet connection

2.2 Software Requirements

The software requirements for the client and server

side are discussed here.

Client side:

Operating system: Windows 2000/XP

Software: J2ME.

Server side:

Operating System: Windows 2000/XP

Software: Wireless Tool Kit

JDK1.4

Jakarta Tomcat Server 5.0

3. User Classes and Characteristics

4. System Features:

Various features of the system along with

their functionalities and functional requirements

are given below.

4.1 Viewing Different Drives:

Using this feature an administrator is able to view

from a mobile phone, the different drives present

in computer in a network.

Functional requirements: A connection between the client and server

should be present for performing the above

operations.

A GUI is needed to collect information

from the user.

Select command is used to select one item

from a list and to see its contents.

Back command is used to go back to the

previous menu.

Managers Checking currently running process

Sending file as an E-mail

attachmentWriting a message

File view

Marketing

Staff

View drives and their contents

Sending file as an E-mail

attachment

Students File manipulation

WriteSending file as an E-mail

attachment

File view

Public Can use any available options

depending on their need.


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Ok command is used to pass some

information from client to server.

Figure2: Use case diagram for modeling

the drives of the system

4.2 Task Manager Functions

Using this feature one can view on their

mobile phone all the currently running processes in

the system .we can start any process and kill any

process.

Figure 3: A Use case diagram used for

modeling the requirements of the

system

5. About Technology

This section is going to present the technologies

used in client, server and communication between

the two.

5.1 J2ME Technology:

5.2 Server-Side Technology:

On server side servlets and java are used for

developing the application.

Servlets:OEM

Apps

OEM

Classes

Operating System

Java Virtual Machine

Configuration

J2ME APIs

MIDP

Figure4: Layers of the J2ME Architecture


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A Servlet accepts the request from the client

via the web server , performs some task and rturns

the results. The web server receives the requestfrom the client and sends it to the servlet. If the

servlet has not yet been loaded, the web server will

load it into the JVM and execute it. The servlet

will receive the HTTP request and perform tasks

and return a response to the web server which in

turn forwards it to the client.

6. The Two-tier Architecture

The Network Controlling through Mobile

application has the following 2-tiers.

Client Tier

Server Tier(web-server).

Tier 1: The client contains the

presentation logic, including simple

control and user input validation.

This application is also known as a

Midlet.

Tier 2: The servlet tier is also

known as the web-server as the

business logic.

The advantages of 2-tier architecture are:

The 2-tier approach increases scalability

and separates the display and business

layers.

It is simple to design and implement.

It is easier to modify or replace any tier

without affecting the other tiers.

Adequate security policies can be enforced

within the server tiers without hindering theclients.

7. Using UML:

Below figure shows the activity diagram of the

system

HTTP

Request

HTTP

Response

Client Web-

Server

Servle

t

Figure 5: Client

Server interaction

Client Side

Server Tier

HTTP Web-

Server

Front-End For

users

Users

Figure 6: Two-Tier Architecture


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Figure7: Activity Diagram For

do Process ()

Figure8: Activity diagram for do

drives ()

The DoDrives activity is itself shown separately as

another activity diagram. Swimlanes are used to

partition the activity states in the activity diagram

in to groups. Here PC and Mobile are the names of

the swimlanes.

8. SCREENSHOTS

This section describes the screens of the

Network Controlling through Mobile .


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Screenshot 1

This is the second screen that appears on starting

the project after the welcome screen. In the login

screen the username, password and server IP

address are collected in the textbox. The commandOK will take to the next screen.

Figure A.1: Login Screen

Screenshot 2

A valid user will have a list of options i.e.

process and drives to choose. On pressing

the select button the details of the option

will be listed.

Figure A.2: Menu Options

Screenshot 3

On selecting the process option, another list as

shown above will be displayed. The two

commands back and select will take to the previous

and next screen respectively.

Figure A.3: Process Types

Screenshot 4


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On selecting the list of process option the currently

running processes in the Pc are displayed. The

command kill will kill the selected process. Back

command will take you to the previous screen.

Figure A.4: Process List

Screenshot 5

To start a particular process on the pc the process

name as to be specified. The command back will

take to the previous screen and Ok command will

start the process.

Figure A.5: Start Process

Screenshot 6

On selecting the Drives option, the list of drives

present in the Pc will be displayed. The command

Read Files will display all the files and folders of

the selected drive.

Figure A.6: List of Drives

Screenshot 7

Once the files present in the drive are displayed,

we can perform manipulations on the selected file.

The menu displays the possible manipulations

possible.


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Figure A.7: List of Options

9. ADVANTAGES:

The communication between the phone and

the computer take place through GPRS.

This means that the administrator can

access the contents of computer in a

network at anytime any place.

The application runs on any GPRS and

J2ME enabled mobile phone regardless of

the vendor and GPRS service provider.

It consumes minimum storage resources, as

no data is stored in the mobile.

10. DISADVANTAGES:

Viewing the file from the mobile handset is

limited by the bandwidth of GPRS network

and the capability of mobile handset.

The rate at which the file is transmitted

between the computer and the mobile is


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12. REFERENCES

Books

[1] James Keogh, The Complete Reference

J2ME, Tata McGraw-Hill Edition

[2] Jochen Schiller, Mobile

Communications, second Edition

[3] Grady Booch and Etal, The Unified

Modeling Language user guide, Pearson

Education

Websites

[4]

http://www.gprshelp.co.uk/html/GPRSArchite

cture.html

[5]

http://www.codeproject.com/ce/mobileconne

ct.asp

[6]

http://docs.info.apple.com/article.html?

artnum=19652

[7] http://www.gprhelp.co.uk/html/-secure
http://www.gprshelp.co.uk/html/GPRSArchitecture.htmlhttp://www.gprshelp.co.uk/html/GPRSArchitecture.htmlhttp://www.gprshelp.co.uk/html/GPRSArchitecture.htmlhttp://www.gprshelp.co.uk/html/GPRSArchitecture.html

Documents

Network Controlling Through Mobile