Fault Detection in Distributed Antenna System

1. FAULT DETECTION IN DISTRIBUTED ANTENNA SYSTEM
INTERNAL:
Ms. FARZEEN IQBAL
EXTERNAL:
Mr. SALMAN BAKHTYAR
CEO of 360 CELLUTIONS
TEAM ID: FYP-13
TEAM MEMBERS:
•UMAIR SHAIKH (GL)
TC-050
• KAMRAN ULLAH SHARIF
TC-019
• JUNAID KHAN
TC-041
• SAAD SHAH
TC-009
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2. NEED - PROBLEM - SOLUTION
Introduction
Distributed Antenna System
Problem
Fault detection in passive indoor GSM antennas
Solution
Designing an algorithm for detecting a fault in DAS
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3. ARCHITECHTURE
Microcontroller
C - Language
GSM
Module
GSM
Module
Monitoring
Unit
AT Commands
AT Commands
C# / SQL
SENDING PART
RECEIVING PART

4. WORKING FLOW CHART
Microcontroller
GSM module
Processing
S>T
No
Yes
Output
End
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5. HARDWARE
GSM module and AT commands
Interfacing of GSM module with Microcontroller
Calculating signal strength
Sending signal strength after 6 hour of Delay
Signal Strength calculation using TIMER and INTERRUPTS
Remotely Access Algorithm
Power Efficient Circuit
PCB Design
Complete Product/ Compact size
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6. UMAIR SHAIKH PART
Designing of code to fetch signal strength and send it to
monitoring unit
• Initializing the GSM Module
• Calculate the signal strength
• Send the reading to MU
Designing of code to allow remote access
• Receive Message periodically (1 hour)
• Read Inbox (20 messages)
• Match the numbers with MU number
• Calculate the signal strength
• Send the reading to MU
• Delete all the messages
Integration of Code
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7. INTERFACING: GSM MODULE WITH PC
UART
Function
• To interface GSM Module with
Microcontroller
Virtual
Terminal
• Used to simulate the
microcontroller on PC to obtain
real time results

8. JUNAID KHAN PART
Designing of code for long delays Using Timers and Interrupts
• Delays With single Timer.
• Delay using Cascaded Timers for long delays.
• External Timers with interrupt Functions.
Designing of code to make Product more Efficient and reliable
• Power Saving function.
• Voltage spikes.
• Code malfunction.
• External Oscillators.
• PCB designing.
Integration of Code
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9. TOOLS
• Proteus
 Used with GSM module
 Used with Microcontroller
• Hyper Terminal
 Used with GSM module
 Used with Microcontroller
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Mikro C
WinAvr
USB Asp
Eagle Pro
• Kicad
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10. MESSAGE FORMAT
Performance wise Signal Strength in dBm
Strength
Range in dBm
Best
Over -65
Good
-79 to -65
Fair
-89 to -80
Bad Signals
-99 to -90
Dead
-105 to -100
Conversion of ASU in dbm
dBm = 2 × ASU - 113
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11. SOFTWARE
SMS Fetching From GSM module
Storing Signal Strength In DATABASE
Comparing Signal Strength With Threshold
Splitter Algorithm
Remote Accessing Feature
Windows Application Form
Scalable Software
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12. IMPLEMENTATION
Designed a Form
Interface it with SQL Database
Data Searching Option
Data Modifying Option
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13. KAMRAN ULLAH SHARIF PART
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Learning SQL Server.
Learning Visual Studios.
Learning MySQL.
Coding the Software.
Interfacing GSM module with C#.
Designed the message receiving Algorithm.
Designed the database searching Algorithm.
Remote sensing.
MYSQL Server configuration.
Deployment of Software.
Testing the software.
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14. SOFTWARE
Software Coding
• Coded the software.
• Coding each specific button.
• Making forms.
Interfacing GSM module with C#
• Access GSM module.
• Read Data from GSM Module.
• Convert it into a software language.
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15. ALGORITHMS
Message receiving Algorithm
• Message is read from the GSM module.
• Authenticated.
• Broken into each character.
• Saved in Database.
Designing a searching Algorithm
• Algorithm designed that searches database.
• Searching criteria is defined.
• Searched record returned to software.
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16. REMOTE SENSING
• Message sent through GSM Module to Antenna.
• Send to specific antenna requesting its information.
• Antenna faulty or not faulty verified.
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17. FINALIZATION
Deployment
• Creating a software file for setup.
• Making a list of recommended settings.
• License agreement.
Testing the Software
• Testing the Software for bugs.
• Creating exceptions.
• Making software stabilize.
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18. SYED SAAD SHAH PART
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SQL Server Learning.
Visual Studios Learning.
Learning MYSQL.
Created the Software Designed.
Coding the Software along with Kamran.
Designed the Splitter Algorithm.
Designed the Threshold Algorithm.
Linked SQL Server with Software.
Linked MYSQL with software.
Transferred the Software to MYSQL.
Testing the Software along with Kamran.
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19. SOFTWARE
Software layout
• Created the Software design.
• Designed the working of each button.
Software Coding
• Coded the software.
• Designed the Forms with different function.
• Linking all the forms to the master form.
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20. ALGORITHMS
Splitter Algorithm.
• Knowledge of Antenna connected to Splitters.
• Detects if splitter is faulty or Antenna.
Threshold Algorithm.
• Detects the input signal.
• Compares it to a threshold.
• Updates the status in Database.
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21. LINKING
SQL Server
• Linked Software to Database.
• Database created upon configuration.
• Message received is updated in Database.
MYSQL
• Linked Software to Database.
• Database created upon verification.
• Message received is decoded and updated.
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22. FINALIZATION
MYSQL
• MYSQL version of software as free.
• Created Database upon configuring.
• Took whole database to Software.
Testing the Software
• Testing the Software for bugs.
• Creating exceptions.
• Making software stabilize.
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23. THANK YOU
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24. SOFTWARE SNAPS
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