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Study of Design and Implementation Techniques for WiFi based PC and

Mobile Control

Kanad Bapat1, Shruti Bhutada

2, Prachi Birla

3, Devyani Parchani

4, Prof. A. S . Hanwate

5

1,2,3,4B.E. Computer Engg., NBNSSOE, Savitribai Phule Pune University, Pune, India.

5Professor, Department of Computer Engg., NBNSSOE, Savitribai Phule Pune University, Pune,

India.

Abstract Managing your device can also easily get in

the way of productivity or efficiency if, for

example, you are working at your desktop

computer and you need to frequently pick up

your phone to reply to text messages.

This application lets you use and

manage your device over the air. It’s a

handy solution for those who hate having to

switch between computer and phone

frequently.

In this application one can manage the

functionalities of his device from the PC,

such as messaging, managing files, enabling

or disabling device modes etc.

1.Introduction

1.1. Scope

This application will work on server-client

basis, such that the controlling device acting

as a client will be able to manage the server

(controlled device). Both the devices (PC

and mobile) must be connected to the same

wireless network.

In this application one can manage the

functionalities of his device from the PC,

such as messaging, managing files, enabling

or disabling device modes etc. The reverse

communication(controlling PC from mobile)

is also possible by running severs on both

PC and the mobile which will also act as

clients, requesting the other server to gain its

control.

The users can read, write, reply to the text

messages and manage and play multimedia

files, add or edit contacts, install or uninstall

applications, check and manage call logs,

and updated status related to your device

and much more.

This paper explains the overall design of the

system and its components and interfaces. It

takes through the software and hardware

interfaces, communication interfaces. It also

specifies the user requirements, and the

specifactions.

1.2. Proposed System

The application we are building is

completely independent of any other system.

There are similar applications/softwares

already present in the market. One of them

is Airdroid.

Our application provides various similar

functions like checking the text messages,

replying to them on your big

screen(PC/laptop), maintaining or checking

the call logs, accessing the system services

like camera, file manager, media player,

audio recorder etc. Our application will

attempt to allow the user to avail the calling

Kanad Bapat et al, Int.J.Computer Technology & Applications,Vol 6 (1),81-84

IJCTA | Jan-Feb 2015 Available [email protected]

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services of the cell-phone through the

connected PC/laptop.

Fig 1. Proposed System

As shown in Fig 1, there are two devices

communicating with each other through a

wireless network. Both the devices i.e your

mobile and PC will be able to communicate

with the help of network addresses. This

leads to the client-server based

communication and thus creating a

connection oriented and reliable

communication channel.

2. System Flow

The PC acting as a client will send the

request to the connected Mobile as and

when the user will ask for the access trough

the PC.

This request will be communicated to the

Mobile through the network using different

network protocols.

This request will be processed by the Mobile

and then it will render the access to its

system services as a response to the request,

using different service classes.

This response will be sent to the PC using

different network protocols, and then will be

provided to the user through the PC

application GUI.

3.Interfaces

3.1. Hardware Interfaces

The application is connected with the two

devices:

The Android cellphones running Android

2.1 or later.

The Web Desktop should be compatible

with mst modern web browsers, including

Chrome 12 or later Firefox 3.6 or later.

The android device and computer need to be

in the same WiFi network to connect.

A typical wireless access point with a stock

antenna has a range of 35m indoors and

100m outdoors. On routers with detachable

antennas, it is possible to improve the range

by fitting upgraded antennas which have

higher gaining particular directions. Mobile

use of WiFi over wider ranges is limited.[4]

3.2. Software Interfaces

Software interfaces are required to access

the system services of the cell-phone from

the remote PC/laptop. This can be done by

the APIs provided by Android. Using these

interfaces we would be able to access the

camera, audio manager, files and folders,

text messages etc over the established

connection.

Components :

Camera: The Android framework includes

support for various cameras and camera

features available on devices, allowing you

to capture pictures and videos in your

applications.

The Android framework supports capturing

images and video through the Camera API

or camera Intent. Camera ,This class is the

primary API for controlling device cameras.

This class is used to take pictures or videos

when you are building a camera application.

SurfaceView: This class is used to present a

live camera preview to the user[2]

.

MediaRecorder: This class is used to record



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video from the camera.

Intent

MediaStore.ACTION_IMAGE_CAPTURE

or

MediaStore.ACTION_VIDEO_CAPTURE

can be used to capture images or videos

without directly using the Camera object[2]

.

Media Playback: The Android multimedia

framework includes support for playing

variety of common media types, so that you

can easily integrate audio, video and images

into your applications. You can play audio

or video from media files stored in your

application's resources (raw resources), from

standalone files in the filesystem, or from a

data stream arriving over a network

connection, all using MediaPlayer APIs[2]

.

The following classes are used to play sound

and video in the Android framework:

MediaPlayer: This class is the primary API

for playing sound and video[2]

.

AudioPlayer: This class manages audio

sources and audio output on a device[2]

.

Text Copy and Paste: When you use the

clipboard framework, you put data into a

clip object, and then put the clip object on

the system-wide clipboard. The clip object

can take one of three forms[2]

:

Text: A text string. You put the string

directly into the clip object, which you then

put onto the clipboard. To paste the string,

you get the clip object from the clipboard

and copy the string to into your application's

storage[2]

.

This section describes the classes used by

the clipboard framework:

ClipboardManager: In the Android system,

the system clipboard is represented by the

global ClipboardManager class. You do not

instantiate this class directly; instead, you

get a reference to it by invoking

getSystemService

(CLIPBOARD_SERVICE)[2]

.

ClipData,ClipData.Item,and ClipDescription

To add data to the clipboard, you create a

ClipData object that contains both a

description of the data and the data itself.

The clipboard holds only one ClipData at a

time. A ClipData contains a ClipDescription

object and one or more ClipData.Item

objects[2]

.

Storage Options:

Your data storage options can be:

Network Connection: Store data on the web

with your own network server[2]

.

Using a Network Connection: You can use

the network (when it's available) to store and

retrieve data on your own web-based

services. To do network operations, use

classes in the following packages: Java.net.*

& android.net.*[2]

3.3. Communications Interfaces

Both the devices will communicate using

different network protocols such as HTTP,

FTP, MTP, IP.

HTTPS protocol to allow you to establish an

even safer remote connection between your

device and computer[8]

.

swiFTP is a lightweight FTP server that lets

you transfer multiple files from Windows,

Linux through a secure FTP connection[5]

.

Your phone will act as a FTP server. This

will allow you to access your phone from a

remote network via a proxy.

The Media Transfer Protocol, introduced by

Microsoft, is a protocol designed for

intelligent storage devices like smartphones

and digital audio players. It is based on, and

fully compatible with, the Picture Transfer

Protocol (PTP). MTP allows the

synchronization of files between portable

devices and a personal computer (PC)[6]

.



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4. Product Functions

The main intent of the application is to

wirelessly connect the mobile with the

PC/Laptop.

This connection will allow us to access the

different services of the mobile through the

connected PC.

We will be able to access the camera, check

for the different photos and manage them.

One can also manage its files like

move,copy, delete from one place to

another.

We can also have an access to the different

medias like music, audio etc.

The user can even check, reply to the

messages through his/her PC/laptop.

The calling services can also be used, as

well as manage and check the call logs.

This application also allows to access

various applications on your phone, install

and uninstall them.

5. User Characteristics

This application is intended to be useful for

the users who cannot access their mobile

phones physically but need to use the

facilities very frequently.

There are no restrictions laid on the

technical expertise of the user and the

application can be used by anyone needing

it.

The application just needs the user to have

an Android based phone, a PC/Laptop and

an efficient WiFi connection for the both.

5.1. Constraints

Hardware limitations: The mobile and the

PC must be present physically within the

range limits of the network routers.

Interface to other applications: This

application cannot be used inside or in

association with any other application.

Parallel operation: The application cannot

connect with more than one Mobile parallel.

5.2. Assumptions and Dependencies

The application depends only on the

hardware specifications of the WiFi router

and the two devices to be connected.

6. Specific Requirements

The system shall connect the devices

wirelessly.

The system should allow the user to access

the mobile services from his PC.

The system may further allow the user to

avail the calling services from his PC

through the wireless connection.

6.1. Performance Requirements

The system supports only a single

connection between one mobile and one PC.

The system is fast in performance such as

establishment of connection, transfer of

files, and other system services.

7. References

[1] “Android Apps for absolute

Beginners” – Wallace Jackson.

[2] www.android.com

[3] https://developer.android.com/guide/

index.html

[4] http://en.wikipedia.org/wiki/Wi-Fi

[5] http://en.wikipedia.org/wiki/File_Tra

nsfer_Protocol

[6] http://www.2brightsparks.com/resour

ces/articles/media-transfer-protocol.pdf

[7] http://www.androidpolice.com/2010/

08/02/tutorial-how-to-transfer-files-

tofrom-your-android-phone-over-wlan/

[8] http://www.howtogeek.com/howto/4

1583/how-to-transfer-files-between-

your-pc-and-android-phone-wirelessly/



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