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IBBT Wireless Lab
Ingrid Moerman
IBBT – IBCN - UGent
Outline
!!Wireless networks: what?
!!Wireless Lab: what & why?
!!Some IBBT use cases: how?
!!Conclusion
2
Outline
!!Wireless networks: what?
!!Wireless Sensor and Networks (WSN)
!!Wireless Sensor and Actuator Network (WSAN)
!!Wireless Mesh Networks (WMN)
!!Wireless Lab: what & why?
!!Some IBBT use cases: how?
!!Conclusion
3
4
!! Definition
!! A wireless sensor network (WSN) consist of self-organizing, wirelessly
connected sensor nodes, reporting to a sink
!! Components
!! Sensor nodes
!! cheap
!! unreliable
!! energy constrained
!! densely deployed
!! Sink
!! gathers the collected data
!! Primary concerns
!! Energy efficiency " maximize lifetime
!! Scalability " many nodes, adding nodes
Wireless Sensor Network (WSN)
Internet Sink
Task manager node
User
Sensor node
Sensor field
Wireless Sensor and Actuator Network (WSAN)
!! Definition
!! by adding actuators, a WSN can also be used for automation purposes
!! Extra component
!! actuator node
!! possibility of taking actions
!! upon sensor info
!! upon commands from
remote control station
!! Examples
!! lighting
!! heating
!! automatic door
!! motor engine
!! Primary concerns
!! heterogeneity
!! both energy-constrained and less energy-constrained nodes
Actuator node
Internet Sink
Task manager node
User
Sensor node
WSAN
Evolution from WSN towards WSAN
WSN
!! homogeneous nodes
!! sensors only
!! unidirectional communication to sink
!! unreliable network
WSAN
!! heterogeneous nodes
!! sensor & actuators
!!more complex communication patterns
!! reliability & QoS support
Actuator node
Internet Sink
Task manager node
User
Sensor node
WSAN
Sensor node
WSN
Sink
7
Evolution from WSN towards WSAN
WSN
environment monitoring
!! homogeneous nodes
!! sensors only
!! unidirectional communication to sink
!! unreliable network
WSAN
wireless building automation
!! heterogeneous nodes
!! sensor & actuators
!! more complex communication patterns
!! reliability & QoS support
8
!! Definition
!! A wireless mesh network (WMN) is a communication network made up of
radio nodes organized in a mesh topology
!! A WMN offers a high-bandwidth network for mobile clients over a specific
(often hard to reach) coverage area
!! Components
!! Mesh routers
!! Gateway
!! Mesh clients
!! Primary concerns
!! Reliability & resilience
!! Self-organizing and self-healing
© Ingrid Moerman - 8
Wireless Mesh Network (WMN)
Outline
!!Wireless networks: what?
!!Wireless Lab: what & why?
!!Motivation
!!Characteristics
!!Some IBBT use cases: how?
!!Conclusion
9
IBBT iLab.t – Wireless Lab: Why?
!! Problem
!!uncontrolled, dynamic wireless environment
!! Development environment
!!Network simulations & wireless channel emulations are unreliable
due to simplified & inaccurate models (channel, hardware,
embedded environment)
!!Sensor/mesh network protocols are typically designed to run on
large scale
!!Evaluations on small-scale experimental testbeds are not sufficient (only proof of functionality, not of scalability)
!! Need for real-life large-scale test environment
!! IBBT iLab.t – Wireless Lab
10
11
IBBT iLab.t – Wireless Lab
!!Sensor networking (IEEE 802.15.4)
!! Automatic control, software configuration, remote access, …
!! Energy consumption monitoring and control (no batteries)
!! Emulation (e.g. replay) of sensor/actuator events
!!Meshed networking (IEEE 802.11)
12
IBBT iLab.t – Wireless Lab
µC radio BUS antenna INT
sensors actuators DUT
13
WiLab @ IBBT: Environment Emulator
DUT Environment
Emulator
PWR
SI
I(O)
aud
Power
DAC/ADC, RS232
GP(I)O
USB
Ethernet + power
Fixed interface:
RS232, USB, …
iNode
Current
battery emulator +
real-time power measurements
sensor/actuator
emulation
audio
audio
14
iLab.t : Sensor Lab Hardware
WLAN
sensor
iNode:
Embedded PC
WLAN
EE
15
WiLab deployment @ IBBT building
Class Room
Hallway
IBBT iLab.t – Wireless Lab
!! Feature set
!! # nodes: 190 fixed locations, 3 floors @ Zuiderpoort
!!Every node is generic and is equipped with !! 2 USB, RS232, VGA interfaces
!! 1 or 2 sensor nodes IEEE802.15.4 (+ embedded sensors: Temperature, Light, Humidity)
!! 2 WiFi IEEE 802.11 radios (a/b/g)
!! Extendable: Bluetooth, Software Defined Radio, …
!!Every node is powered via PoE and can be disabled
!!Environment emulator (EE) !! EE can emulate battery voltage of the sensor nodes and can measure the consumed
electrical power real time
!! EE can emulate environmental variables like switches, monitored data
!! EE can log the events of the sensor nodes
!!Sensor nodes can measure and react on real and emulated environmental variables
!!Development environment !! TinyOS (sensor nodes)
!! Click (iNodes)
!!Remote access
16
IBBT iLab.t – Wireless Lab
!! Feature set
!! # nodes: 190 fixed locations, 3 floors @ Zuiderpoort
!!Every node is generic and is equipped with !! 2 USB, RS232, VGA interfaces
!! 1 or 2 sensor nodes IEEE802.15.4 (+ embedded sensors: Temperature, Light, Humidity)
!! 2 WiFi IEEE 802.11 radios (a/b/g)
!! Extendable: Bluetooth, Software Defined Radio, …
!!Every node is powered via PoE and can be disabled
!!Environment emulator (EE) !! EE can emulate battery voltage of the sensor nodes and can measure the consumed
electrical power real time
!! EE can emulate environmental variables like switches, monitored data
!! EE can log the events of the sensor nodes
!!Sensor nodes can measure and react on real and emulated environmental variables
!!Development environment !! TinyOS (sensor nodes)
!! Click (iNodes)
!!Remote access
17
Outline
!!Wireless networks: what?
!!Wireless Lab: what & why?
!!Some IBBT use cases: how?
!!WBA: Wireless Building Automation
!!DEUS: Deployment and Easy Use of wireless Services
!!GeoBIPS & ADAMO: Crisis intervention
!!MultiTr@ns: Logistic chain
!!Conclusion
18
19
Sensor networks: why?
!!A few realistic use cases*
!!WBA: Wireless Building Automation
!!DEUS: Deployment and Easy Use of wireless Services !!Senior mobility support
!!Cultural events
!! Inheritage
!!GeoBIPS & ADAMO !!Crisis intervention
!!MultiTr@ns !!Logistic chain
* taken from IBBT cooperative research projects
20
WBA: Wireless Building Automation
!! Target
!! to develop advanced building automation techniques in order to deploy
building management systems, hereby:
!! avoiding as much as possible costly and inflexible cable infrastructures
!! covering hard to reach locations such as protected monuments
!! Building Management System (BMS)
!!monitor & control of
!! Low data rate applications !! HVAC control
!! (emergency) lighting
!! access control
!! fire detection
!! motion detection
!! positioning
!! High data rate applications !! camera surveillance
!! public address (video display,
audio)
21
MOTION
WBA: Wireless Building Automation
WBA @ Wireless Lab
22
Sensor node
Mesh node
WBA @ Wireless Lab
23
Sensor node
Mesh node
Set up wireless mesh network (WMN)
WBA @ Wireless Lab
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Sensor node
Mesh node
Set up wireless sensor network (WSN)
WBA @ Wireless Lab
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Sensor node
Mesh node
Set up wireless sensor network (WSN)
WBA @ Wireless Lab
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Sensor node
Mesh node
Set up wireless sensor network (WSN)
+ define WSN gateways
WBA @ Wireless Lab
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Sensor node
Mesh node
Set up wireless sensor network (WSN)
Sink advertisement + set up topology
WBA @ Wireless Lab
28
Sensor node
Mesh node
Set up wireless sensor network (WSN)
Sink advertisement + set up (tree) topology
WBA @ Wireless Lab
29
Sensor node
Mesh node
Set up wireless sensor network (WSN)
Sink advertisement + set up (tree) topology
Emulate sensor & actuator events
t
T
t
V S
t
WBA @ Wireless Lab
30
Sensor node
Mesh node
Test robustness upon WSN and/or WSN node failure
WBA @ Wireless Lab
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Sensor node
Mesh node
Testing of large scale sensor network
WBA @ Wireless Lab
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Sensor node
Mesh node
Testing of large scale sensor network
33
DEUS: Deployment and Easy Use of wireless Services
!! Use case 1: cultural events !!Guiding of persons in and around public areas
!! wireless location-based / personalized applications for indoor guiding of persons
!! combination with outdoor guiding with GPS
!!Tracing of persons/assets
DEUS @ Wireless Lab
34
Sensor node
Mesh node
Indoor positioning / tracking / guiding
35
DEUS: Deployment and Easy Use of wireless Services
!!Use case 2: senior mobility support
service flat
home
homes
local help desk
residential care
walking circles
36
!! Use case 2: senior mobility support
!!Tracking and identification of persons
!! follow up of people with dementia
!! low cost indoor and outdoor positioning
!!Emergency call
!!Voice call
" Portable device with emergency button and voice connectivity
(same low cost device & same technology for indoor and outdoor).
DEUS: Deployment and Easy Use of wireless Services
DEUS @ Wireless Lab
37
Sensor node
Mesh node
emergency call & voice call
(through environment emulator)
38
DEUS: Deployment and Easy Use of wireless Services
!! Use case 3: inheritage (‘erfgoed’) !!support of multiple events taking place at the same location, while
settings may change from day-to-day
!!offering location-aware and profile-based services (e.g. interactive museum guide)
DEUS @ Wireless Lab
39
Sensor node
Mesh node
multiple events
Location-based services
Event 1
Event 2
Event 3
info@location1
info@location2
DEUS @ Wireless Lab
40
Sensor node
Mesh node
remote WMN management
(from external device)
DEUS @ Wireless Lab
41
Sensor node
Mesh node
remote WSN management
(from external device)
42
GeoBIPS & ADAMO: Crisis intervention
1.! Fire truck powers on the MAR, and leaves for the disaster
site.
2.! While on the go, intervention plans can be viewed.
3.! Fire truck arrives at the disaster site.
4.! Reconnaissance Team checks the WLTP – RS link, and
the video and voice connection.
5.! Team enters the building, and places RSs on the go,
based on the building’s structure and on the OTG-CI.
6.! Video images can be viewed at remote crisis center
MAR: Mobile AR (on truck)
WLTP: Wireless Link Termination Point
RS: relay station (mesh cube)
OTG-CI: On-the-go coverage indicator
GeoBIPS @ Wireless Lab
43
Sensor node
Mesh node
WMN node = relay station
E2E communication
QoS support: voice, video, info
ADAMO @ Wireless Lab
44
Sensor node
Mesh node
WMN node = router
Full indoor coverage QoS support: voice, video, info
Multiple logical teams
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MultiTr@ns: Logistic chain
!! Multimodal transport !!Coordination of logistic information
!!Tracking of goods from supplier until final destination by means of sensors
MultiTr@ns @ Wireless Lab
46
Sensor node
Mesh node
Tracking of goods
Outline
!!Wireless networks: what?
!!Wireless Lab: what & why?
!!Some IBBT use cases: how?
!!Conclusion
50
Conclusion
!!The Wireless Lab @ iLab.t offers a flexible
wireless test environment
!!experimental validation of innovative network solutions
and services/applications in a large-scale real life
environment
!!support of diverse use cases
!!accessible for IBBT research partners and industry
!!More info
!!see workshop in the afternoon
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Acknowledgement
!! IBBT GBO projects
!!WBA, https://projects.ibbt.be/wba/
!!DEUS, https://projects.ibbt.be/deus/
!!GeoBIPS, https://projects.ibbt.be/geobips/
!!ADAMO, https://projects.ibbt.be/adamo/
!!MultiTr@ns, https://projects.ibbt.be/multitrans/
!!The WSN team @ IBCN