Transcript Helsinki University of Technology Department of Electrical and

Helsinki University of Technology
Department of Electrical and Communication Engineering
‘’Using Powerline Communications in
Control and Data Networking’’
by
Samdani M. Golam
Supervisor & Instructor: Prof. Timo O. Korhonen
Master’s Thesis Presentation
16th February, 2006, Espoo.
Acknowledgements
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Prof. Timo O. Korhonen
Liu Er
Omar Mukhter
Other Colleagues and Friends.
This thesis work has been done in the project ’LED-PLC General Lighting
System’ at Communication Laboratory, HUT, sponsored by TEKES and
Several Companies.
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Agenda
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Introduction
PLC Technology
PLC Applications
Technical Issues for PLC System
Regulation & Standards
Test Setup 1: PLC-LED General Lighting System
Test Setup 2: Comparison of PLC & Ethernet Channel
Test Setup 3: Bluetooth Extension to PLC
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Introduction
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Powerline Communication (PLC),
also known as Broadband Over
Powerline (BPL) is a technique for
sending high speed data through
existing powerline as transmission
medium.
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PLC creates a high speed data
communications network using the
medium and low voltage electric
distribution grids which connects
consumers to the Internet through
any electric socket in the
consumers home.
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Powerline is the worlds largest
existing wired infrastructure.
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Introduction…
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The idea of sending data through the power distribution network is not new
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First technique to make use of PLC for control message by the methods
‘Ripple Control’ in the early 1950s.
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Earlier technology used low frequency and data rate was very low.
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Recent development has been achieved bit rate of several Mbps.
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
PLC Technology
PLC System
In-House
Access
•Uses the Building's electrical
wiring to network computers and
devices within a building.
•This technology employs the outside distribution powerlines (i.e.
medium-voltage or low-voltage) overhead or underground. One system
uses Orthogonal Frequency Division Multiplexing (OFDM) to distribute
the PLC/BPL signal over a width bandwidth using many narrow-band
sub-carriers. At the injector side, data from the backbone network is
Samdani
converted
into the
one M Golam
Date:
16th February,
2006.OFDM signal format and then coupled onto
Masters Thesis Presentation, Communication Laboratory, HUT.
phase of the MV powerline.
PLC Applications
Broadband Services
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High Speed Internet Access
Voice Over IP
Video Streaming
Home Networking
Home Automation
Home Security Systems
Telemedicine Applications
Utility Applications
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Automatic Meter Reading
Internal Communications
Demand Side Management
Load monitoring
Security Monitoring
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Technical issues for PLC system
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Impedance mismatch in receiver side
Channel attenuation
Noise ( Background noise, Impulsive noise)
Electromagnetic compatibility (EMC) issues
- Potential radio interference
- Outdoor powerlines are excellent radiators of frequencies used in BPL systems, so they behave
as transmitting ( and receiving) antennas.
- Complex work to be done in order to establish accepted rules by which BPL can be operated In a
safety way and without
interference.
Zt
General powerline
communication
system
PLC
Channel
Coupling
Circuit
Zl
Transmitter
Date: 16th February, 2006.
Coupling
Circuit
Receiver
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Regulation & Standards
USA
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FCC part 15: Primary forum for
resolving radio interference claims.
Throughout 2004, FCC adopted rules
to facilitate the deployment of BPL.
Europe:
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ECC: Report 24(May 2003)
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MPT 1570: UK standard
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NB30: German standard
Standards
 HomePlug 1.0: from HomePlug power
alliances.
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IEEE P1901: Standards for BPL
network (still working)
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test setup 1: PLC-LED General
Lighting System
Ethernet i/f
P
L
C
Embedded
Application
C
h
a
n
n
e
l
Ethernet i/f
Date: 16th February, 2006.
Serial i/f
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test setup 1: Equipments and
working principle.
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PLC modem
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Microcontroller Board
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ITRAN PLNET13 Development Kit/ Phonex Neverwire 14
Data rate up to 2.5/ 14 Mbps
Wiznet EVB8051
Embedded TCP/IP Ethernet Interface( WI3100)
Embedded Application
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Receiving Control Information in Client Mode, Connected to Server Through
Ethernet Interface.
 Controlling the LED matrix Through Serial Interface
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GUI Application
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Running in Server Mode
Sending LED Control Information as per Operator Input.
LED Matrix
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Comparison of PLC and
Ethernet Channel
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PLC and Ethernet Channels Comparison
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Custom-developed SW designed for PLC
channel performance measurements
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measurement between 2 nodes : client
server architecture
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Accuracy up to order of nanosecond
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Sends & receives data packets in a loop,
and calculates average Round Trip Time
(RTT)
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Dump the results into files automatically
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Data can be further analyzed using Matlab
etc.
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Window size indicates nr. of times same
packet is sent to calculate an avg. value of
RTT
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Results
Ethernet channel
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 2: Results
PLC Channel
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Test Setup 3: Bluetooth Extension to
PLC network.
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PLC modems
2 Laptop
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Serial
Interface
Ethernet
Interface
Symbian-based GUI to control
the matrix
Parallel
Interface
PL
C
Int
erfac
e
LED-control Application
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running on Laptop
Internetworking BT device and
PLC modem
Nokia mobile
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TCP/IP Com
Embedded Application
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BT
Interface
Running on Laptop to control
LED matrix via serial interface
Blueottoth serial module
LED Matrix
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Publications
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Recent Development of EMC Regulation in Power-Line
Communications. WPMC'04, Abano Therme, Italy 13.15. Sept., 2004. pp. 202-206.
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Development of High-rate Control System for LED-based
General Lighting Application. ISPLC'05, Vancouver
Canada, April 6-8, 2005.
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.
Any Question?
Thank You!
Date: 16th February, 2006.
Samdani M Golam
Masters Thesis Presentation, Communication Laboratory, HUT.