Supervisory Control & Data Acquisition Systems

Real time data acquistion system for non-linear loads using LABVIEW

Project developed by Sugendran

Machine Conidtion Monitoring & Vibration Analysis

This project is used to acquire data signals for vibration analysis in real time for condition monitoring. The project developed using LABVIEW and NI Sound and Vibration Tool by Chan Wei Yap.

Boday Area Network

The Project aims at acquiring signals for EEG and ECG measurements using LABVIEW software for monitoring of Body Conditions..

Project work was done by Zoysa Nipuna and Edited by Sugendran

Real Time DC Motor Control using LABVIEW

Real Time DC Motor Control using LABVIEW

Author: Aravind Vaithilingam, Lum Wai Chung

In this project, LabView is the main software to control the whole system. The program designed with LabView able to control the speed of the DC motor and then monitor the system. Then a GUI is developed to make this project user friendly. In the GUI, user can switch speed of the motor by just turning the “KNOB” and a graph will indicate the current speed of the motor.

This is a software base project, so there is limited hardware involved. Basically the PC with LabView will be connecting with a circuit board with a Data Acquisition card (known as DAQ) so that the PC will be able to send signal to the circuit board to control the speed of the motor. A sensor will be placed in the circuit board to detect the motor speed.

This project is called Real Time control because when the LabView program is running the user can change the motor all the time without switching off the program. Voltage signal and PWM signal also will be able to monitor through the GUI.

Real Time Stepper Motor Control for Satellite Tracking System

Real Time Stepper Motor Control for Satellite Tracking System



Authors: Aravind Vaithilingam, Rajparthiban, Mathan

Abstract:

This project presents real time stepper motor controller and demonstrates how personal computer control the stepper motor. Stepper motor has already become an important drive configuration for many applications across a wide range of speeds and positions. The comfort of control and excellent performance of the stepper motor will ensure that the number of applications using them will continue grow for the foreseeable future.
Microcontroller is interfaced to a computer through RS 232 serial port to send the data to the computer for position and speed control of stepper motor. Stepper motor is a type of electric motor which is used when something has to be positioned very precisely or rotated by an exact position. This project is a combination of both hardware and software design. The microcontroller chosen for this project is PIC16F876A because it has a lot of features available in microcontroller. Interfacing between computer and external control device, RS 232 communication protocol is used with Maxim MAX 232 level translator chip to prevent the damaging the PC’s RS 232 interfacing circuitry components and the PIC micro MCU chip.
It is a closed-loop real time control system, where optical encoder (built in this project) is coupled to the motor shaft to provide the feedback position signal to controller. In this control system, the control software is created by Visual Basic 6.0 to access serial communication function. Visual Basic 6.0 component is used to write data and read data and then configure the serial port. A program in Visual Basic 6.0 is developed to provide a graphic user interface (GUI) for the user to enter desired speed and position at computer. Besides, it also shows currently motor position and speed to let the user monitor the performance of the system easily. Based on the result, the reading of optical encoder built is quite reliable.

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