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Middle-East Journal of Scientific Research 19 (12): 1623-1629, 2014

ISSN 1990-9233

DOI: 10.5829/idosi.mejsr.2014.19.12.11265

Corrseponding Author: S. Philomina, Department of ECE, Bharath University, Chennai, India.

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Data-Acquisition System Using Embedded Linux

S. Philomina

Department of ECE, Bharath University, Chennai, India

Abstract: In this paper, we present the principles of a low-operational-cost but flexible Internet-based

data-acquisition system. The main core of the system is an embedded hardware running a scaled-down version

of Linux: a popular choice of operating system for embedded applications. The embedded device communicates

through General Packet Radio Service (GPRS), which makes it accessible from anywhere in the world through

a web server built into the embedded device. In addition, GPRS provides a bidirectional real-time data transfer

allowing interaction. The proposed system eliminates the need for server software and maintenance. A novel

approach is introduced to minimize the operational costs while operating with a large amount of data.

The system is demonstrated to be suitable for different embed- ded applications by attaching several real-time

modules through appropriate interfaces.

Key words: Data-acquisition

Embedded system Interaction Internet Linux Real time

INTRODUCTION There are also several systems that allow data to be

DATA-ACQUISITION systems with remote collection through the Internet, General Packet Radio

accessibility are in great demand in industry and Service (GPRS) is a popular choice in several

consumer applications. In some applications, human applications. A surveillance system based on GPRS

beings have been replaced by unmanned devices that is presented in. A recent work [10] has presented a

will acquire data and relay the data back to the base [1]. GPRS solution to the data-acquisition problem for remote

There are data-acquisition and control devices that will be areas. A distributed system capable of road vehicle

a substitute for a supervisor in a multisite job operation. locating, monitoring and telemetering with GPRS is

A single person can monitor and even interact with the presented in [11]. A long-distance data-collection

ongoing work from a single base station. An acquisition system for the Earth tide gravimeter, collecting

unit designed to collect data in their simplest form is information on temperature, humidity, atmospheric

detailed in [2], which is based on Linux [3], which is a pressure, etc., is designed with GPRS using a hard-coded

popular choice for embedded PC systems. A similar static Internet Protocol (IP) address. These systems use

system in [4] provides data-acquisition with no concern GPRS without concerns about minimizing the cost of data

for remote access. Data collection for post processing on transfer.

a vehicle’s position for an advanced traffic survey is Similar types of Internet-based systems, such as

discussed in [5]. those in, are designed to gather a bulk of data before

Some applications adding remote accessibility are serving them upon request. In these applications, data are

detailed in [6] and [7], which are built to collect and send compiled in a central server and are then served to the

data through a modem to a server. Although these are clients via the Internet. The client framework is in a central

well-built systems that serve the purpose for a specific server and has all the applications. A person that needs

task, the user cannot interact with the system. Another to access any data must first access the server.

unidirectional data transfer is presented in, which uses the An indirect access to the data-acquisition unit makes the

Global System for Mobile Communications (GSM): a system unattractive for real-time control applications,

popular wireless choice for connectivity between the where direct interaction with the system may be required.

data-acquisition units and clients. The need to maintain an additional server will also

remotely accessed. As a solution to wireless data

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S. Philomina 1

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Página 1 - S. Philomina

Middle-East Journal of Scientific Research 19 (12): 1623-1629, 2014ISSN 1990-9233© IDOSI Publications, 2014DOI: 10.5829/idosi.mejsr.2014.19.12.11265Co

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141624increase the setup costs and the costs to maintain theacquisition systems, such as regular maint

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141625Haavard Nord and Eirik Chambe-Eng (the originaldevelopers of Qt and the CEO and President, respe

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141626of this approach depends mostly on the CPU Prior to today's release, Qt ver

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141627CMSIS Cortex Microcontoller Software InterfaceStandard compliantGSM and GPRS are developed for c

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141628Fig. 3: IP address lookup for the stored IP kernel series with TCP/IP stack included has been ch

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Middle-East J. Sci. Res., 19 (12): 1623-1629, 20141629vitally important for some real-time applications. The 6. Zhao-ling Q.I., 2004. Embedded Linux B

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