--------------------------------------------------- Mohammed Saudi Computer Systems Department Mob: 0102342024 email: m_s3odi@yahoo.com

1. SCADA Operating on Trains for Egyptian Railways

2. • Supervisors:
* Prof.Dr. Mohammad Essam Khalifa.
(Dean of Faculty of Computer and Information Science -
Ain Shams University)
* Dr. Hossam Faheem.
* TA. Karim Emara.
• Group Members:
Abdalla Hassan AbdelRaheem Scientific Computing
Mohammed Adel Mohammed Information Systems
Mohammed Saudi AbdelSamad Computer Systems
Mohammed Yehia Kamel Gawish Computer Sciences
Shady Ahmed El-Melegy Computer Systems

3. Agenda
• Background • Hardware Model
• Problem definition • Interface Circuit
• Objective • Design Tool
• SCADA • References
• System Architecture
• Controller
• Demonstrator

4. Introduction
• What is SCADA ?
– stands for Supervisory Control And Data Acquisition
– Usually refers to centralized systems which monitor
and control entire sites, or complexes of systems
spread out over large areas
• Components of SCADA system :
– HMI
– RTU (Remote Terminal Unit)
– Controller Unit (PLCs)

5. Introduction: Railways
• The Railways are controlled by many control
towers along the trains’ paths, which control
the semaphores, crosses ,…etc in a specific
area

6. Background
• Each of Control Towers has:
 Large Control Panel.

7. Background
• Each of Control Towers has:
 Relays

8. Railways Background
• Each of Control Towers has:
 CTC - Centralized Traffic Control.

9. Background
Control Tower
Control Tower
Control Panel
Control Panel
C
T
C
Relays
C
T
C
Relays

10. Problem definition
 Large control panel, which Requires
Continuous costly maintenance.
 Hard to control and manage.
 Requires a number of operators to manage.
 Poor details.

11. Objective
• Provide a computerized control system for
Egyptian railway stations replacing the huge
control panel by a PC without changing the
infrastructure .
X Control Panel
Relays

12. Computerized Railway control System Benefits
Easy management
More clear customizable details
Improved alarm system notification

13. System Architecture
Peripheral
Interface Circuit Hardware Model
Controller
Demonstrator

15. Definition
The controller module has the centralized control
of the model, interface circuit and the
demonstrator module, reflecting the changes that
occur in them

16. Role & Features
1) Control the railway components
2) Show the current state of railway components
3) The ability to change the view of the displayed
portion of the map
4) Alerts of the non-responding components of the
railway
5) Displays information about some components

18. Hardware Model
6/26/2009

19. Why Model ?
The real environment isn't available for testing
Proof the concept taking in consideration the real
world parameters to be controlled
6/26/2009

20. Hardware Model Components:
Relays
connected to the elements to be controlled
Peripheral control interface :
It receives the command serially from the controller
software, understand it and direct it to the desired element
to control it.
We Chose the Microcontroller as Peripheral
control interface .
6/26/2009

21. Peripheral control interface
Why Microcontroller ?
Easy to design and use
Low design time
Low cost
Reprogrammable
6/26/2009

22. Circuit Schematic
6/26/2009

23. Control Process
Controller software
ID: a Value:1
ID =a
Value = 1
Semaphore a mapped P1 Po
to port 2 pin 3
8051 uC
P3 P2
6/26/2009

24. Demo

26. Definition
• SCOOTER Demonstrator shows how station
components (Relays, Semaphores, Tracks, and
Crosses) work in different situations.
• Train movement mechanisms are beyond the
scope of Demonstrator.

27. Role
Measure the capabilities of the controller module
and how it can work in complex environment and in
different situations

28. Features
1) Simple User Friendly interface, Simple
control using Mouse.
2) Allow Zoom in and out, Simple Moving from one
station to another.
3) Set train trips based on trains database.
4) SCOOTER Demonstrator gives ability to change
default behavior of Relays, Semaphores, Tracks
and Crosses or demonstrate their default
behavior.

29. Demo

31. Definition
Design Tool is a CAD program designed specifically
for the needs of model railways such Stations,
Lines, Tracks, Crosses, Curves and Semaphores.

32. Features
1. Create New/Open/Save Station.
2. Add/Edit/Delete Railway.
3. Add/Edit/Delete straight Tracks, Crosses and
Curves.
4. Customize Track orientation.
5. Change Track Place.

33. Demo

34. References
• Engineer: Ahmed abd-Elhamed (the manager of signals
engineering in Egyptian railways Association)
• 8051 Microcontroller and Embedded Systems,(Mazidi).
• Field survey
• http://en.wikipedia.org/wiki/Control_system
• http://www.atp.ruhr-
unibochum.de/DynLAB/dynlabmodules/Examples/Wh
atIsControl/WaterLevel6.html
• http://en.wikibooks.org/wiki/Embedded_Control_Syst
ems_Design/Processors#Choice_of_hardware

35. Thank You