Smart Grid

parsimoniousknotRéseaux et Communications

16 févr. 2014 (il y a 3 années et 1 mois)

66 vue(s)

ICST 2011

Interconnecting ZigBee and 6LoWPAN

Wireless Sensor Networks

for Smart Grid Applications



Advisor: Quincy Wu


Speaker: Chia
-
Wen Lu

National Chi Nan University

Taiwan

Date: 2011/11/30



1


Internet of Things (IoT)


Smart Grid


Smart Grid
-
ZigBee


Smart Grid
-
6LoWPAN


ZigBee/6LoWPAN


Problem


Network management
-
SIP


System architecture


Conclusion and future work

2

Outline

Internet of Things(IoT)

3

Core
Internet


Fringe Internet

IoT

00000

01245012

Smart

metering

Industrial

automation


Transportation

Personal
Sensors

Home

Automation

The Figure from:

http://6lowpan.net/




In large scale IoT deployment there will be rich
combination of sensors and intelligent mana
-
gement schemes.


Wireless sensor networks
(WSNs) play a very
important role in IoT.


WSNs are applied in many fields.


This paper focus on the field of
Smart Grid
.



IoT(cont.)

4

Smart Grid

00000

01245012

meter

aggregation point


(translator)

utility system

Internet

ZigBee

The Figure from:
Li
-
Wen Chen, “ZigBee/TCPIP Translators
in Smart Grid”, ICET2011



5

Internet


IEEE 802.15.4 was proposed for wireless
personal area network communication.


Physical layer and data link layer


Characteristics: short distance transmission

low
power consumption

low cost


ZigBee


Based on IEEE 802.15.4


Network layer and application layer




6

Smart Grid
-
ZigBee


Local network and Internet


ZigBee devices can communicate with each
other.


ZigBee devices can not communicate with
servers directly on the Internet.


An additional mechanism is required.


Smart Grid
-
ZigBee(cont.)

7


6LoWPAN

IPv6 over Low
-
Power
Wireless Personal Area Networks



Based on IEEE 802.15.4


Network layer


IPv6


Compatible with Internet


Do not need additional protocol translation.

Smart Grid
-
6LoWPAN

8

ZigBee/6LoWPAN

9


There is still no
universal network management
protocol

standard to manage two different types
of ZigBee and 6LoWPAN devices.


This paper proposed
S
ession
I
nitiation
P
rotocol
(SIP)
application layer protocol to manage
ZigBee and 6LoWPAN WSNs.


10

Problem


Control communication protocol



Point to point



Multiple points


Applications


Voice over Internet Protocol(VoIP)


Instant Message


Network Management


Network management
-
SIP

11



IPv6

and
SIP

are added to the Smart Grid
management system.


Smart Grid


ZigBee
-
based


6LoWPAN
-
based


Hybrid



SIP network management module


12

System Architecture

ZigBee
-
based Smart Grid


system architecture

13

6LoWPAN
-
based Smart Grid


system architecture

14

Hybrid Smart Grid


system architecture

15

ZigBee

6LoWPAN

SIP network management module

16

Subscribe /
Notify

Instant Message

Subscribe and Notify Module

17


Servers can subscribe
data which it wants to
monitor from end
devices.


Example:


Electricity consumption


Temperature of meter


Instant Message Module

18



Servers can send
commands to devices.


Example:


Shutting down or
starting devices


Changing devices
settings



This paper compared the
communication
protocols
between
power plants
and
clients
,
and suggested how network management
applications can be carried on these protocols.


Two major network management protocols:
SNMP(Simple Network Management
Protocol)and SIP.


19

Conclusion and future work


Comparing SNMP and SIP, especially analyzing
the transmission performance and the system
resources consumption on a device.



This would allow administrators to manage


a smart grid with the best management protocol.

Conclusion and future work (cont.)

20