1. SCADA – Data Processing Module
E Ravi Teja
M Siva Suman
P Kiran
A Revanth
Ajay kumar Reddy

2. Agenda Review Work done till now Database Design
Detailed Design ( DFD’s)
Work Division
Future Work

3. Review Digital to Engineering Conversion Zero Suppression
Linear
Non-Linear
Piecewise Linear
Zero Suppression
Reasonability Check
Limit Check

4. Work Done Finalized Database Design
Created Database and populated with sample tuples
Developed web interface for providing basic operations of the database like
Insert
Update
Delete

5. Database Design Transducer Characteristics
Digital and corresponding Engineering values
Limit Specifications for
Zero Suppression
Reasonability checks
Limit checks

6. Database Schema Digital To Engineering Zero suppression
LitId
Timestamp
Digital Value
Engineering Value
Modified
Zero suppression
Reasonability check
Limit check
Characteristic function
Type
Minimum
Maximum
LitId
Category

7. Database Schema(contd..)
Transducer characteristics
Linear
Type A B
Piecewise linear
Type A B X 1 Y 2
Continuous
Type An n

8. Initial System Design Characteristic Zero Converter function
Category
Converter
Zero
Suppression
Engineering Value
Digital Value
Input
Litid+DigVal
Reasonability
Check
Database No
Display
Error
Yes No
Limit
Check
Display
Output
Yes

9. Detailed Design – DFDs – II
5. function
Characteristic
function
Converter
User
0. Submit
event
2. LitId
6. EngVal
1. Input
LitId+Digval
Check
3. LitId
8. checked_value
4. function
Database
7. Limits
Converter DFD

10. 1. insert(LitId, Timestamp, DigVal)
AddNew DFD - II
AddNew
(Null checks)
0. LitId
Timestamp
DigVal
User
1. insert(LitId, Timestamp, DigVal)

11. 1. delete(LitId, Timestamp)
Delete DFD – II
Delete
0. LitId
Timestamp
User
1. delete(LitId, Timestamp)

12. 1. Update(LitId, Timestamp, others..)
Modify DFD – II
Modify
(Null checks)
0. LitId
Timestamp
Others..
User
1. Update(LitId, Timestamp, others..)

13. Work Division Database schema design Detailed design
(All team members)
Detailed design
(Kiran and Ajay reddy)
Web interface design and Query generation.
(Revanth, Siva Suman and Ravi Teja)

14. Future Work Digital to Engineering Conversion
Error checking mechanisms for
Zero Suppression
Reasonability checks
Limit checks

15. Thank You
Q & A