© 2014 IJIRT | Volume 1 Issue 6 | ISSN: 2349-6002
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ABSTRACT: In this research paper we are showing the data acquisition system in various fields. 1) Internet based data acquisition system for fiber optics 2) Microcomputer based data acquisition system for cone penetration test 3)
Remote data acquisition system using wireless 4)
Reconfigurable data acquisition system for radar weather. In this paper, we discuss an internetbased data acquisition system proposed specifically for Fiber optics system, the basic system involves a polarimetric sensors based on pressure induced birefringence effects occurring in highly birefrignent fibers and developed in a temperature compensating configuring. In microcomputer based, the system utilizes a portable, IBM compatible, personal microcomputer for data storage and post-processing, and a microprocessor interface for data acquisition, analogue-to-digital conversion, signal amplification and multiplexing, pre-processing, data display and temporary storage. In remote, we have developed an integrated wireless SCADA system for performance
IJIRT 100775 monitoring of remotely
& accessing situated the device parameter such as temperature, pressure, humidity on real time basis. In Reconfigurable data, FPGA-based system has been successfully integrated with radar optimized for tornado detection and deployed in the field.
Index Term:- Data acquisition system, CPT (cone penetration test), fiber optic sensors, SCADA,
GPRS, FPGA, radar.
passivity, high bandwidth, safety in corrosive or explosive environments, and immunity to EMI, high sensitivity, and possibility of remote operation. A micro-computer based system is able to collect greater quantities of data and has the facility for automatic calculation and analysis, as well as preparing the data in the form of graphical plots and tabulation ready for report presentation. Supervisory
Control and Data Acquisition is a process control system that enables a site operator to monitor and control processes that are distributed among various remote sites. Control and Data Acquisition systems are computers, controllers, instruments; actuators, networks, and interfaces that manage the control of automated industrial processes and allow analysis of those systems through data collection. Radar data acquisition systems must meet a series of requirements. Due to the volume of raw data produced by such radar it cannot be efficiently stored; real time processing is a must. We present a reconfigurable data acquisition system for weather radar applications.
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DATA ACQUISTION SYSTEM:
Data acquisition is the process of sampling signals that measure real world physical conditions and converting the resulting samples into digital numeric values that can be manipulated by a computer. The components of data acquisition systems include:1)
Sensors that convert physical parameters to electrical signals 2) Signal conditioning circuitry to convert sensor signals into a form that can be converted to digital values 3) Analog-to-digital converters, which convert conditioned sensor signals to digital values.
BLOCK DIAGRAM OF DATA ACQUISITION
SYSTEM: INTRODUCTION: Data acquisition is the process of measuring an electrical or physical phenomenon such as voltage, current, temperature, pressure, or sound with a computer. A DAQ system consists of sensors, DAQ measurement hardware, and a computer with programmable software. DAQ are used by most engineers and scientists for laboratory research, industrial control, test and measurement to input and output data to form a computer. Fiber-optic sensors (FOS) used in internet based DAQ may offer significant metrological improvements: electrical
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© 2014 IJIRT | Volume 1 Issue 6 | ISSN: 2349-6002
Data Acquisition System consists of:
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Transducer: Transducer is used to measure directly the electrical quantities such as
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resistance, voltage, frequency, etc.
Signal conditioner: Signal conditioners are
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used in order to make the signals strong enough to drive the other elements such as amplifiers, modifiers, filters etc.
Multiplexer: The function of the
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multiplexer is to accept multiple analog inputs and provide a single output sequentially according to the requirements.
A/D converter: The analog-to-digital converter is generally used to convert the analog data into digital form. The digital data is used for the purpose of easy
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processing, transmission, digital display and storage.
Recorders and Display Devices: In display devices the data is displayed in a suitable form in order to monitor the input signals.
Examples of display devices are oscilloscopes, numerical displays, panel meters, etc.
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INTERNET BASED DATA
ACQUISTION SYSTEM FOR FIBRE
OPTICS SYSTEM: In this paper, we discuss an internet-based data acquisition system proposed specifically for FOS. The
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basic system involves a polarimetric sensors based on pressure induced birefringence effects occuiorring in highly birefrignent fibers and developed in a temperature compensating configuration.
The polarimetric Fiber optic system is placed inside a standard application specific hydraulic pressure cell filled with a hydrostatic medium. The cell is designed in a way assuring that only the sensing fiber undergoes pressure changes, while the compensating one is completely isolated from such changes. Both parts of senor are placed very close to each other to avoid any temperature gradients that eventually compromise the quality of temperature compensation. The assembly of FO pressure cell is composed of two metal plates, which are joined together using a welded sealing to form a pressure pad. This paper shares the concerns of sensor grids and focuses on the effective management of an array of fiber-optic pressure sensors shared by multiple users. The sensors are used by the client for a predetermined interval of time during which measurement data is collected and sent back to the client.
The paper describes an internet based distributed clients.
data acquisition system, designed to control several applications specific measurements installations in remote location by several authorized
MICROCOMPUTER BASED DATA
ACQUISITION SYSTEM USING
CONE PENETRATION TEST:
Measurements of qc, fs, and depth which are amplified, conditioned, stored, and transmitted by the microprocessor interface are scaled, displayed and saved onto floppy disk on an IBM compatible micro-computer. A number of features make this computer attractive for field data acquisition of CPT measurements. The microprocessor interface has a sample interval of approximately 0.1 sec. A suite of five computer programs has been written primarily to optimise the time taken to process and present the recorded information CPTRead, is permanently stored on the EPROM chip of the microprocessor interface. The hardware of the data acquisition system consists of five components. These include the electric cone penetrometer; the depth box; the
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alarm button; the microprocessor interface, and; the micro-computer. The electric cone penetration test, as distinct from the mechanical cone penetration test, and commonly referred to by the shorter name of cone penetration test (CPT). The need for penetration testing as an in situ technique in offshore foundation investigations in view of the difficulties in achieving adequate sample quality in marine environments.
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REMOTE DATA ACQUISITION
SYSTEM USING WIRE LESS:
In this paper we discussed an integrated wireless
SCADA system for monitoring & accessing the performance of remotely situated device parameter such as temperature, pressure, humidity on real time basis. For that have used the infrastructure of the existing mobile network, which is based on GPRS technique Supervisory Control and Data Acquisition
(SCADA) is a field of constant development and research. Wireless SCADA deals with the creation of an inexpensive, yet adaptable and easy to use
SCADA device and infrastructure using the mobile telephone network, in particular, the General Packet
Radio Service. From the wireless SCADA system which is proposed in setup the temperature of around
31oC could be sufficiently recorded from remote location. The properly designed SCADA system saves time and money by eliminating the need of service personal to visit each site for inspection, data collection or make adjustments. Supervisory Control and Data Acquisition (SCADA) is a process control system that enables a site operator to monitor and control processes that are distributed among various remote sites. SCADA systems are computers, controllers, instruments; actuators, networks, and interfaces that manage the control of automated industrial processes and allow analysis of those systems through data collection. . Mobile
Supervisory Control and Data Acquisition is the use of SCADA with the mobile phone network being used as the underlying communication medium.GPRS is chosen as the specific mobile communication protocol to use as it provides an always on-line Inter connection without any time based charges.
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RECONFIGURABLE
ACQUISITION SYSTEM
DATA
FOR
WHETHER RADAR:
This system uses two Altera Stratix EP1S40 field programmable gate arrays as its main processing components. The fine-grained parallelism of the
© 2014 IJIRT | Volume 1 Issue 6 | ISSN: 2349-6002 field programmable gate arrays allows for real-time radar processing of weather data streams. Processing algorithms may be changed in response to changing weather conditions via remote reconfiguration. The system has been designed to use a state-of-the-art intermediate frequency digitizing receiver. The first generation Data Acquisition System radars will employ transmitters whose frequency can drift as a function of temperature, humidity, duty cycle, aging etc. Whereas, the future systems will employ frequency agile transmitters with wide bandwidth transmit waveforms, which further emphasizes the need for high bandwidth. As radar systems become increasingly capable of agile and adaptive operation, the requirements on data processing grow accordingly. One salient feature of this data acquisition system is that it enables one to build heterogeneous sensor networks with identical interfaces to the exterior world. One FPGA is responsible for digital signal processing, while the other manages data distribution, Processed data is transported from the DSP FPGA to the communications FPGA. There are numerous uncommitted digital I/Os, which include buffering and ESD protection, on each FPGA and also the microcontroller, these may be used for synchronization with the radar system or peripheral expansion. FPGA are highly effective in performing time varying tasks such as data compression, digital signal processing and communication operations.
CONCLUSION: Significant benefits can be obtained by the use of a computer-based data acquisition system over the conventional analogue data logging in using microcomputers, Greater quantities of data can be recorded due to the relatively high sampling rate of the microprocessor interface; Automatic calculation and analysis, plotting and tabulation of data, Increase in time and manpower efficiency. By using Wireless data acquisition systems, wireless based solutions have universally accepted, familiar and user friendly system. Real-time logging would allow warnings to be flagged to the relevant personnel and allow corrective action to be taken before the quality and value of the catch is degraded. In reconfigurable data acquisition system, essential features such as remotehost based control and reconfiguration of the system has been successfully implemented.
REFERENCES:
1.
W. J. Bock, M. R. H. Voet, M. Beaulieu, T.
R. Wolinski, and J. Chen,“Prototype fiber optic pressure cell for stress monitorin g,”
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© 2014 IJIRT | Volume 1 Issue 6 | ISSN: 2349-6002
2.
3.
4.
5.
IEEE Trans. lnstrum. Meas., vol. 41, no. 6, pp. 1045 – 1049, Jun. 1992.
De Ruiter, J. (1981). Current Penetrometer
Practice. In Cone Penetration Testing and
Experience, Geotech. Engg. Div., ASCE,
St. Louis, Missouri, pp. 1-48.
Jabs, M. B. (1990). A Data Acquisition
System for the Cone Penetration Test.
Seminar on Computing in Geomechanics,
Aust. Geomech Soc., S.A. Div., Sept.,
1990, pp. 22-31.
Sandip C.Patel, Pritimoy Sanyal ” Securing
SCADA System” Information Management
& Computer Security Journal Volume: 16
Issue: 4 Page: 398 – 414 Year: 2008.
Technical Information Bulletin 04-1,
Supervisory Control and Data Acquisition
(SCADA) Systems, NCS TIB 04-1, Oct.
2004.
Li Xiuli. Design of Data Acquisition and 6.
7.
8.
Transmission System Based on MSP430
[J]. Mechanical Engineering and
Automation, vol. 8, 2011.
Surve, V, 2006, “A wireless
Communication Device for Short
Messages”, Masters Thesis, Available: www.certec.lth.se/doc/awireless.pdf.
Technical Information Bulletin 04-1,
Supervisory Control and Data Acquisition
(SCADA) Systems, NCS TIB 04-1, Oct.
2004
Ai Yu. Research on Solar Battery Data 9.
Acquisition System Based on Singlechip
[D]. Wuhan University of Technology,
2010.
AT91RM9200 ARM RISC Microcontroller
Manual, Atmel Corporation, http://www.atmel.com,
September 2003.
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