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
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
14.
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
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
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.
31. Definition
Design Tool is a CAD program designed specifically
for the needs of model railways such
Stations, Lines, Tracks, Crosses, Curves and
Semaphores.