Telelab 2

Telelab- remote monitoring lab

A Remote Monitoring and Control System

TELELAB

Presented by :Avinash PathakDron Sharma


What TELELAB is ??

TELELAB is a system designed for remote monitoring and controlling which may be required in scientific research, testing and experimentation. It provides the observer with the data he/she requires without him/her being physically present at the place where the actual experiment is being conducted.


BLOCK DIAGRAM


Features of TELELAB Designed controller (Simulink file) is automatically

converted as a real-time executable and uploaded on a remote PC connected to one or more processes, guaranteeing hard real-time performance

The experiments are controlled by a standard web browser allowing a full modification of controller parameters and observing signals on real-time plots.

Since a centralized server is employed to handle the remote PC’s, experiments can be easily shared among different laboratories or even different departments/universities, so reducing costs and facilitating the birth of laboratory consortia

Much more practical and industrial oriented program.


HOW WE WILL ACHIEVE IT !!!!


Integrator

ATMEL MEGA 8LSERVER TCP/IP

CLIENT 2

CLIENT 3

CLIENT 4

CLIENT 1

Through DB9 Port

LAN N/W

Model of implementation


Components List


Components List contd..


MATLAB WORKING


Applications of MATLAB Math and computation Algorithm development Data acquisition Modeling, simulation, and prototyping Data analysis, exploration, and visualization Scientific and engineering graphics Application development, including graphical

user interface building


Interfacing b/w PCs• DB-25 PORT• It is the parallel port.• 2-9 are bi-directional data pins• pins 10-13 and 15 are output

pins (status pins) • pins 1,14,16,17 are input pins. • pins 18-25 are Ground pins.


Interfacing b/w PCs contd… DB-09 PORT• This is the serial port.• Pin 3 is the Transmit (TX) pin,

pin 2 is the Receive (RX) pin

and pin 5 is Ground pin. • Other pins are used for

controlling data communication

in case of a modem.


How access the Parallel port ??• MATLAB has an adaptor to access the parallel port . To access the parallel port

in MATLAB, define an object >> parport= digitalio('parallel','LPT1'); • obtain the port address using, >> get(parport,'PortAddress') >> daqhwinfo('parallel'); % To get data acquisition hardware information• We have to define the pins 2-9 as output pins, by using addline function >> addline(parport, 0:7, 'out') • Now put the data which you want to output to the parallel port into a matrix; e.g. >> dataout = logical([1 0 1 0 1 0 1 1]); • Now to output these values, use the putvalue function >> putvalue(parport,dataout); • Alternatively, you can write the decimal equivalent of the binary data and output

it. >> data = 23; >> putvalue(parport,data);


Serial IO with MATLAB • The following steps are required for serial data

communication• Create serial port object. Use MATLAB command serial• Configure serial port object. get and set commands• Connect to the device. Fopen• Configure if required. get and set commands• Write data with fprintf command. Read data with fscanf

command.• Disconnect device on transmission over. Use fclose


Serial Read


Serial write


Atmel mega 8LPin Diagram :


Block Diagram of Atmel mega 8L


Block Diagram of Atmel mega 8L contd..


How hex code is burn


Showing the window of client & server of Telelab


REFERENCES

• [1] Matlab help. http://www.mathworks.com/academia/ • [2] ‘tcp udp ip’ toolbox for Matlab. http //www.mathworks.com/matlabcentral/f

ileexchange/ loadF ile.do?objectI d = 345 • [3] Instrument Control Toolbox for Matlab. http : • //www.mathworks.com/access/helpdesk • [4] WinAvr help. • [5] Atmel Avr Manuals mega8 and some appnotes. http : • //atmel.com/dyn/resources • [6] Real Systems in the Virtual Lab 2000. [Online]. Available: • http://prt.fernunihagen.de/rsvl • [7] Remote Lab Experiment RC Oscillator for Learning of Control. S. Uran, D.

Hercog and K. Jezernik. University of Maribor, Faculty of Electrical Engineering and Computer Science, Maribor, Slovenia

• [8] S. Dormido, Control Learning: Present and Future, In Proc. 15 IFAC World Congres on Automatic Control,Barcelona, Spain, 2002.

• [9] M. Casini, et all, The Automatic Control Telelab, IEEE Control Systems Magazine, vol. 24, No. 3, 2004, pp.36-44.

Telelab 2

Technology

Transcript of Telelab 2