1

A Project Report

On

AUCTIONEERING CONTROL SYSTEM

USING LABVIEW

For a partial fulfilment of the requirements for the award of

BACHELOR OF TECHNOLOGY

IN INSTRUMENTATION ENGINEERING

Submitted By:

MAYURESH JOSHI (2011BIN036)

AMOL DUDHATE (2011BIN044)

SHUBHAM BAHETI (2011BIN038)

Under the Guidance:

Project Mentor Project Guide

ANGADKUMAR YENNUM MRS. R.V.SARWADNYA

Department of Instrumentation Engineering

Shri Guru Gobind Singhji Institute of Engineering &

Technology, Vishnupuri, Nanded – 431606

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SHRI GURU GOBIND SINGHJI INSTITUTE OF ENGINEERING &

TECHNOLOGY, VISHNUPURI, NANDED – 431606

DEPARTMENT OF INSTRUMENTATIO ENGINEERING

CERTIFICATE

This is to certify that report entitled ―Auctioneering Control System Using

LabVIEW‖ being submitted by Mr. Mayuresh Joshi, Mr.Amol Dudhate, Mr.

Shubham Baheti to Shri Guru Gobind Singhji Institute of Engineering & Technology,

Vishnupuri, Nanded for the award of the degree Bachelor Of Technology in

Instrumentation is a record of bonafide work carried out by them under the

supervision and guidance.

The matter contained in this thesis has not been submitted to any other

university or institute for the award of any degree or diploma.

Angadkumar Yennum Mrs. R.V.Sarwadnya

(Project Mentor) (Project Guide)

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ACKNOWLEDGEMENT

No work can be considered complete without a word of appreciation for all those who

have contributed in it.

We express our sincere gratitude to Mrs.R.V.Sarwadnya (Project Guide) for giving us

an opportunity to carry out the project work under her guidance. We are greatly indebted to

her for her critical review of our project work and timely guidance at each and every level.

We would like to place on record our deep sense of gratitude to AngadkumarYennum

(Project Mentor) for his generous guidance, help and useful suggestions.

We are extremely thankful to Dr. L.M.Waghmare, Director, SGGSIE&T,Nandedand

Dr.V.G.Asutkar, Head Department of Instrumentation Engineering for providing

infrastructural facilities to work in, without which this work would not have been possible.

We wish to take this platform to extend our sincere thanks to all our teachers for

molding us in their special way. Last but not the least we express our gratefulness to

DR.S.T.HAMDE, Project coordinator for his encouragement, staunch support and belief in

our project. We are also thankful to him for providing the laboratory facility whenever

needed.

MR. MAYURESH JOSHI

MR. SHUBHAM BAHETI

MR. AMOL DUDHATE

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INDEX

Abstract………………………………………………………………………..5

List of Figures………………………………………………………………....6

1. Introduction To Auctioneering Control………………………………………..7

2. Introduction To Labview…………………………………………………….10

2.1 Operation Panels of Labview……………………………………..11

3. Hardware For Auctioneering Control

3.1 Arduino……………………………………………………………13

3.1.1 Arduino Hardware…………………………………………..13

3.1.2 Why Arduino?........................................................................14

3.2 Components Specifications

3.2.1 Thermistor…………………………………………………..16

3.2.2 Relay………………………………………………………..17

3.2.3 Heater……………………………………………………….19

3.2.4 Pump ………………………………………………………..20

3.3 Thermistor Interfacing With Labview…………………………….21

4. Software Requirements For Auctioneering Control

4.1 Labview Interface For Arduino (LIFA)…………………………..22

4.2 Program For Interfacing Arduino With Labview ………………...22

4.3 Block Diagram ……………………………………………………26

4.4 Front Panel ………………………………………………………..27

5. Future Scope and Applications………………………………………………..28

6. Conclusion……………………………………………………………………30

References……………………………………………………………………31

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ABSTRACT

In many exothermic reactions usually in tubular reactors there occurs the temperature

variation along the length of the reactor so it is very critical and necessary to maintain the

temperature same throughout.

By detecting the highest temperature point (HOTSPOT) and adjusting coolant the

temperature can be maintained same. So to detect the hotspots it needs the placement of

multiple temperature sensors along the length of reactor.

In this project we have tried to show the working model of auctioneering control system

.We have used the Arduino for the control purpose which is interfaced with process and

provides the data to PC which is provided with LabVIEW. We have used LabVIEW for

creating the front panel with help of which the overall acquired data can be interpreted on PC

screen. Programming for the interface of all peripherals is done with the help of LabVIEW.

Objective for the project is to implement the control system to maintain the temperature

with the help of embedded electronic circuit (Arduino) which is cost effective and provides

better and faster result.

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LIST OF FIGURES

Fig.1.1 : Auctioneering control for tubular reactor

Fig.1.2 : Selective control method

Fig.1.3 : Schematic diagram of Auctioneering control setup

Fig.2.1 : Tools palette

Fig.2.2 : Functions Palette of LabVIEW

Fig.2.3 : Controls palette of LabVIEW

Fig.3.1 : Arduino kit

Fig.3.2 : Thermistor characteristics

Fig.3.3 : Thermistor (NTC 10K)

Fig.3.4 : Realy pin diagram

Fig.3.5 : Relay driver circuit.

Fig.3.6 : Heater

Fig.3.7 : Pump

Fig.3.8 : Thermistor interfacing with Arduino

Fig 3.9 Hardware Setup for Auctioneering Control System

Fig.4.1 : LabVIEW Interface For Arduino

Fig.4.2 : Block diagram for auctioneering control

Fig.4.3 : Front Panel Of Auctioneering Control

Fig.5.1: Auctioneering control for pressurized tank

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1. INTRODUCTION

1.1 PROBLEM STATEMENT

We know that in most of the storage tanks the temperature varies along the length of

the tank, and there is usually a clear 'hot spot' somewhere in the tank which may cause

damage to the body as well as liquid present in the tank.

It is not necessary that hot spot always occurs at same point. Therefore we have to

place a probe at appropriate location. Unfortunately, things are never simple and the position

of the 'hot spot' can move up and down the length of the reactor depending on the flows and

compositions of the various streams.

It is not conventional to measure the temperature at single point and taking those

readings for operating a heating element, as it does not gives the information about

temperature at some other point, and if we used the temperature readings at single point it

will cause all the heating elements to turn on or off continuously.

In this project we are going to make an auctioneering control system using NI-miRIO

card along with LabVIEW. In auctioneering control system the manipulated variable (in this

case temperature) is controlled by measuring the temperature at different points of the system

and corresponding action (on or off) to be performed is sent to the controller for controlling

different heating elements.

1.2 AUCTIONEERING CONTROL

There are conditions in process plant where multiple process measurements are

available for a particular variable that needs to be regulated through a single control action.

Thus it is evident that the said control action should be given based on the most critical

measurement condition for the process variable. This is termed as Auctioneering Control. The

technique can be illustrated with the following example.

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Fig.1.1 : Auctioneering control for tubular reactor

Let us consider a tubular reactor shown in the Fig 1.1. The reaction is exothermic and

hence the temperature inside the reactor needs to be regulated. However, the temperature

varies along the length of the tube and if the corrective action, i.e. the coolant flow rate, is

taken on the basis of highest temperature measurement, it will ensure that the other

temperature zones are also guarded against overheating. To avoid this problem we can use an

auctioneering control system which is also referred as selective control.

Fig 1.2 : Selective control method

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Some features of auctioneering control / selective control are:

Utilize the best suitable measurement among many measurements.

High selector (HS), Medium selector (MS) or Low selector can be used (LS)

Examples:

Hot spot temperature control

The location of hotspot travel

Use of distributed sensors

Enhancing sensor reliability

Auctioneering control system consists of one manipulated variable (in this case

temperature of water) and several measured signals all of same variable.

Fig 1.3 : Schematic Diagram Of Auctioneering Control Setup

Most of the cases control variables such as temperature, pressure, etc. does not

remains constant throughout the process. It is not good to measure the control variable at

particular point to control other variable. So in such cases auctioneering control system can

be employed. It measures same variable at different points and any one signal from different

signals whether it is minimum or maximum or average etc. and depending on that signal it

control manipulated variable.

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2. INTRODUCTION TO LABVIEW

LabVIEW software is ideal for any measurement or control system, and the heart of the

NI design platform. Integrating all the tools that engineers and scientists need to build a wide

range of applications in dramatically less time, LabVIEW is a development environment for

problem solving, accelerated productivity, and continual innovation.

The program LabVIEW developed by NI Company consists of three major functional

parts: functional operation and graphic display of virtual instrument; design and edit of

background programs; selection and connection of subprograms. They are realized by the

following three modules:

1) Front Panel

Front panel is a tremendously important part of virtual instrument. No matter the

software operations, input, output, or results. All of these depend on the virtual graphical

interfaces of the front panel, which make real interactions between computers and users

possible.

2) Flowchart

Flowchart, which is the back panel of the program, realizes the function design of the

software. It includes control signal acquisition, overall architecture of the software,

calculations and so on. By editing the program of the back panel, the program icons of the

back panel are corresponding to the control program of the front panel. Only some built-in

functions and program frames are running in the background independently.

3) Icons and Connectors

If the program in LabVIEW is too complex, the master program will be modularized

into several subprograms to command different functions. The subprograms are named as

subordinate VI as well which are represented by icons that can be used by the master program

with connectors.

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2.1 OPERATION PANELS OF LABVIEW

In order to make the operations of users more convenient, LabVIEW provides three

different sets of operating panels which appropriately classify different types of functional

modules. Users can conveniently choose any of the three in their own needs, which include:

1) Tools Palette

As shown in Figure 2.1, the tools palette provides adjustment and modification tools

for LabVIEW including icon lead selection, program debugging, text control, front panel

colour modification and so on. After users click one of the functions icons, the mouse pointer

will turn into that icon which means the corresponding function will be activated. To choose

any function in the tools palette by using a default choice is also available.

Fig.2.1 : Tools palette

If the mouse pointer stops over the subprograms or the icons of the back panel, the

corresponding tooltip window will appear.

2) Functions Palette

The functions palette is a tool to set up the flowchart program, as shown in Figure 2.2.

Each top layer icon on the palette represents a subordinate palette. The functions palette

includes all important program function modules. It includes the basic operations module,

signal processing module and hardware interaction module. It is shown as Figure 2.2.

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Fig. 2.2 : Functions Palette of LabVIEW

This palette mainly adds various virtual control switches and VIO to the front panel.

Users can not only add suitable virtual control icons according to different targets and

accuracies of the design programs, but also beautify interactive interfaces by using this

palette.

3) Controls Palette

As shown in Figure 2.3, the control palette consists of the following subordinate palettes.

Fig.2.3 : Controls palette of LabVIEW

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3. HARDWARE FOR AUCTIONERING CONTROL

3.1 ARDUINO

Arduino is a tool for making computers that can sense and control more of the

physical world than your desktop computer. It's an open-source physical computing

platform based on a simple microcontroller board, and a development environment for

writing software for the board.

Fig.3.1 : Arduino kit

Arduino can be used to develop interactive objects, taking inputs from a

variety of switches or sensors, and controlling a variety of lights, motors, and other

physical outputs. Arduino projects can be stand-alone, or they can communicate with

software running on your computer (e.g. Flash, Processing, MaxMSP.) The boards

can be assembled by hand or purchased preassembled; the open-source IDE can be

downloaded for free.

The Arduino programming language is an implementation of Wiring, a

similar physical computing platform, which is based on the Processing multimedia

programming environment.

3.1.1 Arduino Hardware

An Arduino board consists of an Atmel 8-bit AVR microcontroller with

complementary components that facilitate programming and incorporation into other

circuits. An important aspect of the Arduino is its standard connectors, which lets

users connect the CPU board to a variety of interchangeable add-on modules known

as shields. Some shields communicate with the Arduino board directly over various

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pins, but many shields are individually addressable via an I²C serial bus—so many

shields can be stacked and used in parallel.

Official Arduinos have used the megaAVR series of chips, specifically the

ATmega8, ATmega168, ATmega328, ATmega1280, and ATmega2560. A handful of

other processors have been used by Arduino compatibles. Most boards include a 5

volt linear regulator and a 16 MHz crystal oscillator (or ceramic resonator in some

variants), although some designs such as the LilyPad run at 8 MHz and dispense with

the onboard voltage regulator due to specific form-factor restrictions. An Arduino's

microcontroller is also pre-programmed with a boot loader that simplifies uploading

of programs to the on-chip flash memory, compared with other devices that typically

need an external programmer. This makes using an Arduino more straightforward by

allowing the use of an ordinary computer as the programmer.

At a conceptual level, when using the Arduino software stack, all boards are

programmed over an RS-232 serial connection, but the way this is implemented varies

by hardware version. Serial Arduino boards contain a level shifter circuit to convert

between RS-232-level and TTL-level signals. Current Arduino boards are

programmed via USB, implemented using USB-to-serial adapter chips such as the

FTDI FT232. Some variants, such as the Arduino Mini and the unofficial Boarduino,

use a detachable USB-to-serial adapter board or cable, Bluetooth or other methods.

(When used with traditional microcontroller tools instead of the Arduino IDE,

standard AVR ISP programming is used.)

The Arduino board exposes most of the microcontroller's I/O pins for use by

other circuits. The Diecimila, Duemilanove, and current Uno provide 14 digital I/O

pins, six of which can produce pulse-width modulated signals, and six analog inputs,

which can also be used as six digital I/O pins. These pins are on the top of the board,

via female 0.10-inch (2.5 mm) headers. Several plug-in application shields are also

commercially available. The Arduino Nano, and Arduino-compatible Bare Bones

Board and Boarduino boards may provide male header pins on the underside of the

board that can plug into solderless breadboards.

3.1.2 Why Arduino?

There are many other microcontrollers and microcontroller platforms available

for physical computing. Parallax Basic Stamp, Netmedia's BX-24, Phidgets, MIT's

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Handyboard, and many others offer similar functionality. All of these tools take the

messy details of microcontroller programming and wrap it up in an easy-to-use

package. Arduino also simplifies the process of working with microcontrollers, but it

offers some advantage for teachers, students, and interested amateurs over other

systems:

Inexpensive - Arduino boards are relatively inexpensive compared to other

microcontroller platforms. The least expensive version of the Arduino module

can be assembled by hand, and even the pre-assembled Arduino modules cost

less than $50

Cross-platform - The Arduino software runs on Windows, Macintosh OSX,

and Linux operating systems. Most microcontroller systems are limited to

Windows.

Simple, clear programming environment - The Arduino programming

environment is easy-to-use for beginners, yet flexible enough for advanced

users to take advantage of as well. For teachers, it's conveniently based on the

Processing programming environment, so students learning to program in that

environment will be familiar with the look and feel of Arduino

Open source and extensible software- The Arduino software is published as

open source tools, available for extension by experienced programmers. The

language can be expanded through C++ libraries, and people wanting to

understand the technical details can make the leap from Arduino to the AVR C

programming language on which it's based. Similarly, we can add AVR-C

code directly into your Arduino programs if we want to.

Open source and extensible hardware - The Arduino is based on Atmel's

ATMEGA8 and ATMEGA168 microcontrollers. The plans for the modules

are published under a Creative Commons license, so experienced circuit

designers can make their own version of the module, extending it and

improving it. Even relatively inexperienced users can build the breadboard

version of the module in order to understand how it works and save money.

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3.2 COMPONENTS SPECIFICATIONS

3.2.1 Thermistor [NTC 10K @25*C]

A thermistor is a type of resistor whose resistance varies significantly with

temperature, more so than in standard

resistors. Thermistors are widely used as

inrush current limiter, temperature

sensors (NTC type typically), self-

resetting over current protectors, and self-

regulating heating elements. Thermistors

differ from resistance temperature

detectors (RTDs) in that the material used

in a thermistor is generally a ceramic or

polymer, while RTDs use pure metals. Fig.3.2:Thermistor characteristics

The temperature response is also different; RTDs are useful over larger

temperature ranges, while thermistor typically achieve a higher precision within a

limited temperature range, typically −90 °C to 130 °C

Basic operation

Assuming, as a first-order approximation,

that the relationship between resistance and

temperature is linear, then:

where

, change in resistance

, change in temperature Fig 3.3 : Thermistor (NTC 10K)

, first-order temperature coefficient of resistance

Thermistor can be classified into two types, depending on the classification of . If

is positive, the resistance increases with increasing temperature, and the device is

17

called a positive temperature coefficient (PTC) thermistor, or posistor. If is

negative, the resistance decreases with increasing temperature, and the device is

called a negative temperature coefficient (NTC) thermistor. Resistors that are not

thermistors are designed to have a as close to 0 as possible, so that their resistance

remains nearly constant over a wide temperature range.

Instead of the temperature coefficient k, sometimes the temperature coefficient of

resistance (alpha sub T) is used. It is defined as

Features

Wide resistance range

Cost-effective

Lacquer-coated thermistor disk

Tinned copper leads

Lead spacing 5.0 mm

Marked with resistance and tolerance

3.2.2 RELAY

A relay is usually an electromechanical device that is actuated by an electrical

current. The current flowing in one circuit causes the opening or closing of another

circuit. Relays are like remote-control switches and are used in many applications

because of their relative simplicity, long life, and proven high reliability.

Relays are used in a wide variety of applications throughout industry, such as in

telephone exchanges, digital computers and automation systems. Highly sophisticated

relays are utilized to protect electric power systems against trouble and power

blackouts as well as to regulate and control the generation and distribution of power.

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In the home, relays are used in

refrigerators, washing machines and

dishwashers, and heating and air-

conditioning controls. Although relays

are generally associated with electrical

circuitry, there are many other types,

such as pneumatic and hydraulic. Input

may be electrical and output directly

mechanical, or vice versa.

Fig. 3.4 : Relay pin diagram

How do relays work?

All relays contain a sensing unit, the electric coil, which is powered by AC or

DC current. When the applied current or voltage exceeds a threshold value, the coil

activates the armature, which operates either to close the open contacts or to open the

closed contacts.

When a power is supplied to the coil, it generates a magnetic force that actuates the

switch mechanism. The magnetic force is, in effect, relaying the action from one

circuit to another. The first circuit is called the control circuit; the second is called the

load circuit.

Operating Principle:

There are really only two fundamentally different operating principles:

(1) electro-magnetic attraction, and (2) electromagnetic induction. Electromagnetic

attraction relays operate by virtue of a plunger being drawn into a solenoid, or an

armature being attracted to the poles of an electromagnet. Such relays may be

actuated by d-c or by a-c quantities. Electromagnetic-induction relays use the

principle of the induction motor whereby torque is developed by induction in a rotor;

this operating principle applies only to relays actuated by alternating current, and in

dealing with those relays we shall call them simply "induction-type" relays.

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Fig 3.5: Relay driver circuit.

There are three basic functions of a relay: On/Off Control, Limit Control and Logic

Operation.

On/Off Control: Example: Air conditioning control, used to limit and control

a ―high power‖ load, such as a compressor

Limit Control: Example: Motor Speed Control, used to disconnect a motor if

it runs slower or faster than the desired speed.

Logic Operation: Example: Test Equipment, used to connect the instrument

to a number of testing points on the device under test.

3.2.3 HEATER

o Power: 220V-240V 50Hz 500w

o Material: Aluminium

o Wire Length: 60 cm

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Fig 3.6: Heater

3.2.4 PUMP

Special features:

o Compact Size

o Easy to Install

o Rust Proof

o Multiple Usage

o Easy to Clean

o Low Electricity Consumption

o Special design for cooler system.

o Sheels, Which have long life made of high

quality strong ABS.

o With thermal overheat protector inside.

o Energy saving, High lift, Long flow.

Fig 3.7 : Pump

Specifications:

o Voltage : 220-240 V/50 Hz.

o Power : 18W

o H-Max : 1.85m

o Output : 1100L/H

3.3 THERMISTOR INTERFACING WITH ARDUINO:

While interfacing thermistor with arduino we have to initialize connection to

arduino with the default baud rate of 115200. Then arduino will read the thermistor

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readings which is connected to one of the analog input pin of arduino. Thermistor

should be paired with 10K resistor.

Fig 3.8 : Thermistor interfacing with Arduino

3.4 HARDWARE SETUP FOR AUCTIONEERING CONTROL

Fig 3.9 Hardware Setup for Auctioneering Control System

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4. SOFTWARE REQUIREMENTS FOR AUCTIONEERING

CONTROL

4.1 LabVIEW Interface for Arduino

Fig 4.1 : LabVIEW Interface For Arduino

Step by Step Start-up Guide

Get Arduino board and accessories.

Make sure you have LabVIEW 2009 or newer installed.

Install NI-VISA Drivers.

Install the Arduino IDE and drivers for Windows.

Install the LIFA.

Upload the sketch ‗LIFA_Base.pde‘ to the Arduino.

Start writing your program/block diagram.

4.2 PROGRAM FOR LABVIEW INTERFACE FOR ARDUINO (LIFA)

/**************************************************************************

** LVFA_Firmware - Provides Basic Arduino Sketch For Interfacing With LabVIEW.

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**************************************************************************/

/**************************************************************************

** Includes.

**************************************************************************/

// Standard includes. These should always be included.

#include <Wire.h>

#include <SPI.h>

#include <Servo.h>

#include "LabVIEWInterface.h"

/**************************************************************************

** setup()

** Initialize the Arduino and setup serial communication.

** Input: None

** Output: None

**************************************************************************/

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void setup()

{

// Initialize Serial Port With The Default Baud Rate

syncLV();

// Place your custom setup code here

}

/**************************************************************************

** loop()

** The main loop. This loop runs continuously on the Arduino. It

** receives and processes serial commands from LabVIEW.

** Input: None

** Output: None

**************************************************************************/

void loop()

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{

// Check for commands from LabVIEW and process them.

checkForCommand();

// Place your custom loop code here (this may slow down communication with LabVIEW)

if(acqMode==1)

{

sampleContinously();

}

}

4.3 Block diagram

Block diagram for Auctioneering control system is shown in figure 4.2. The Block

diagram objects include terminals, subVIs, functions, constants, structures, and wires that

transfer data among other block diagram objects. We can use LabVIEW tools to create,

modify, and debug a VI. A tool is a special operating mode of the mouse cursor, so the

operating mode of the cursor corresponds to the icon of the tool selected. LabVIEW chooses

which tool to select based on the current location of the mouse.

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4.4 Front Panel:

Front panel for Auctioneering Control is shown in figure 4.4. When we open a new

or existing VI, the front panel window of the VI appears and functions as the graphical

user interface or GUI of a VI. We can find the source code that runs the front panel on the

block diagram. The front panel window contains a toolbar across the top and

a Controls palette that we can access by right-clicking anywhere on the front panel.

The front panel interface design is an important part of virtual instrument. The functions

of instrument parameters setting and test results displaying are realized by using the

software, which requires a simple, direct and convenient software interface. The Figure

shows the front panel of the temperature control system. The main functional areas of the

interface include parameter input area, data display controls and results display area.

Fig4.3: Front Panel of Auctioneering Control

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5. Future Scope & Applications

5.1 Future Scope

1) We have used the arduino as the controller for implementing the real time

control for temperature so the advancement of the project can be done by using

latest NI myRIO cards which provides easier approach to interface process with

the Labview.

2) Another advantage of Arduino that wireless data can be transmitted and

received with help of Bluetooth module of Arduino.

3) This system can be used for the safety of the reactor if it is embedded for

tubular reactors where exothermic reactions may cause damage if proper care is

not taken.

5.2 Real Time Application

Auctioneering is the process of choosing one output signal from a set of multiple

input signals. In order to use auctioneering in your control process, you will first

need to have multiple signals all measuring the same variable. The signals will

then all be sent to a set of selectors aligned in series. For each selector, there will

be two inputs. For the first selector, the two inputs will be the first two signals

from the device being controlled. For each subsequent selector, one signal will

be the output signal from the previous selector, while the other input signal will

be the next signal from the device.

For example, suppose that we

have a pressurized storage tank

holding a deadly gas, such as

chlorine. On this tank, we have

attached three pressure sensors, each

measuring the pressure of the tank.

In order to maintain the maximum

amount of safety in our plant, we

will want to choose the highest

pressure read by the three sensor

signals. The reason for choosing the

29

highest pressure is because there is a chance of the tank exploding if the pressure

inside gets too high. In order to select the highest pressure, an auctioneering

system will be used, in which the first two signals will be sent through a high

selector, and then this output value will be sent to a second high selector that

compares it to the third input signal. This second selector then sends the output

signal to control the pressure release valve.

5.3 Other Applications

1) It can be used where accurate and consistent temperature control is needed.

2) Implemented in tubular reactor with exothermic reactions.

3) Controlling pressure of Pressurized storage tank holding a deadly gas, such as

chlorine.

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6. CONCLUSION

With virtual instrument being the platform and the shortcomings of traditional

temperature control system, this thesis combines graphical programming language LabVIEW

and the basic principles of Auctioneering control to conduct temperature control.

The virtual instrument technology inherits the advantages of traditional instrument

and avoids the shortcomings. Users can change and redefine the functions of the instrument

based on their own needs.

This thesis has achieved digital replacement of traditional instrument through the

design of the virtual instrument of the temperature control system and obtained some results.

It turns out to be that using technologically advanced virtual instrument technology to replace

traditional measuring and testing technology is not only feasible, but also better and more

systemically stable.

This thesis provides ideas for the development of similar instruments and paves the

way for the full digitalization of traditional instrument. Because the technology is an

emerging technology which involves novel theoretical knowledge and integrates multiple

disciplines, and my experience is rather limited, the program is in need of further

improvements especially in terms of software, which can expand the functions of the system

through further optimization of its algorithms.

In this thesis, the temperature control system is designed by Labview with

Auctioneering control system. With this control method, the system controlled the

temperature successfully

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REFERENCES

Chemical Process Control: An Introduction to Theory and Practice, George

Stephanopoulos, Depertment of Chemicel Engineering ,Massachusetts Institute of

Technology, P T R PRENTICE HALL, Englewood Cliffs, New Jersey 07632.

Programming Arduino with LabVIEW,Marco Schwartz, Oliver Manickum.

Introduction to LabVIEW, HANS‐PETTER HALVORSEN,2014.03.07

http://www.google.co.in/patents/US4889280

http://vishots.com/getting-started-with-the-labview-interface-for-arduino/

https://decibel.ni.com/content/groups/labview-interface-for-arduino

http://www.onlinecourses.vissim.us/Strathclyde/selective_or_auctioneering_contr.htm

http://www.labviewarduino.in/2015/01/temperature-control-using-labview-and.html

http://nptel.ac.in/courses/103103037/32

http://labviewwiki.org/Home