on hardware and software approaches to monitor wireless mesh and sensor networks
Post on 14-Jan-2015
394 Views
Preview:
DESCRIPTION
TRANSCRIPT
COST IC 0804 Meeting MadridWorking Group 2: Characterization of Energy Consumption and Energy Efficiency
On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
Torsten BraunResearch Group “Communications and Distributed Systems”Institute of Computer Science and Applied MathematicsUniversität Bernjoint work with Markus Anwander and Philipp Hurnibraun@iam.unibe.chcds.unibe.ch
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
2
Overview
> Hardware- and Software-Based Energy Consumption Measurements in Wireless Sensor Networks (WSNs)
> Hardware Support for Energy Consumption Measurements for Hydrology Monitoring with Wireless Mesh Networks (WMNs)
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
3
Hardware-Based Energy Measurements
> Implementation of MaxMAC protocol on MSB430 sensor nodes > Measurement of current draw and voltage using SNMDs
(Sensor Network Management Devices) from KIT
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
4
Current Draw by Different MSB430 Nodes
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
5
Hardware Dependencies
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
6
Simple 3-State-Model
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
7
3-State-Model with State Transitions
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
8
Estimation Errors
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
9
Improved Sensor Hardware-Based Energy Consumption Measurements
> RIGOL DM3052 Digital Multimeter can record 50’000 current measurements per second.
> Laboratory Power Supply VOLTCRAFT VLP-1303 PRO with deviation < 2mV
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
10
WSN Hardware Measurement Setup
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
11
Clear Channel Assessment by TelosB Sensor Nodes
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
12
Deviation between Multimeter and Contiki Energy Profiler
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
13
A4-Mesh: Wireless Mesh Network for Hydrology Monitoring in the Alps
© Atlas of Switzerland 3
2
7
3
41
84
5 6
Plaine Morte Glacier
Sion
Sierre
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
14
A4 Mesh Node Architecture
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
15
A4-Mesh Node Power Supply
- 78Ah/12V battery- Solar charger- 90 W solar panelsMay 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
16
Battery Voltage Measurements by Solar Charger
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
17
UMTS Current Measurements I
May 8, 2012
Node without network interfaces
UMTS interface disabled
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
18
UMTS Current Measurements II
May 8, 2012
UMTS interface on, but idle
UMTS interface with load
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
19
WiFi Current Measurements I
May 8, 2012
Node without network interfaces
WiFi interface disabled
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
20
WiFi Current Measurements II
May 8, 2012
WiFi interface on
WiFi AP running
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
21
WiFi Current Measurements III
May 8, 2012
WiFi client connected to AP, no traffic
WiFi client connected to AP, with traffic
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
22
Conclusions
> High energy costs by wireless network interfaces (UMTS, WiFi)> Hardware for energy / battery measurements
— is available and very valuable for studying details and providing data for software-based measurements and simulation models (require accurate calibration and modelling)
— can be learned by CS students/researchers — comes sometimes with high costs and does not scale
> Better integrated (hardware/software) support for energy consumption profiling in mesh and sensor nodes desired.
May 8, 2012
Torsten Braun: On Hardware and Software Approaches to Monitor Wireless Mesh and Sensor Networks
23
Thanks for your attention !
> Contact— braun@iam.unibe.ch — http://cds.unibe.ch
May 8, 2012
top related